Test System

Abstract

To provide a test system that enables easily avoiding that an abnormal condition of a test object is inaccurately determined due to a state of a person in charge of testing.SOLUTION: A test system 1 comprises: one or more testing condition setting devices 2 that set a testing condition associated with a test of a test object 100; a control device 3 that controls the testing condition setting device 2; one or more first detectors 4 that acquire first detection information associated with a state of the test object 100; and one or more second detectors 5 that acquire second detection information associated with a state of a person in charge of testing 200 engaging in the test. The person in charge of testing 200 may operate at least one of the test object 100, the testing condition setting device 2 and the control device 3 in the test. The control device 3 determines an abnormal condition of the test object 100 on the basis of first detection information acquired in the first detector 4 and second detection information acquired in the second detector 5.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a test system that performs a test while being operated and monitored by a person. [Background technology]

[0002] In test systems used for research and development, etc., people (test personnel) may operate the test object during the test, adjust test conditions while viewing data obtained in real time from sensors, or monitor the condition of the test object and respond to any abnormalities (for example, by halting the test). Summary of the Invention [Problem to be solved by the invention]

[0003] In such a testing system, information about the state of the test object during the test is collected by various sensors, and test result data is obtained based on the collected information. Usually, the state of the tester, which is not directly related to the state of the test object, is not grasped by the testing system.

[0004] However, as mentioned above, a tester may be responsible for operating the test object during testing and monitoring the test object for abnormalities. Therefore, in a test system where the tester's operations (such as operating the test object or test conditions) may or may not occur, the abnormal state of the test object may differ depending on whether or not the tester operates the object. In conventional test systems that do not monitor the tester's status, the abnormal state of the test object is determined solely based on test object data obtained from sensors, etc. In other words, the abnormal state of the test object is determined using the same criteria regardless of whether or not the tester operates the object. This can lead to a problem in which the abnormal state of the test object cannot be accurately determined. For example, if the tester's intentional operation causes data related to the test object to show a change similar to an abnormal state, the system may mistakenly determine an abnormal state when it should actually be determined to be normal.

[0005] Furthermore, in a test system in which a tester monitors the occurrence of abnormalities in test objects, there is a possibility that the tester may become unable to properly perform the abnormality monitoring task due to psychological stress, or may become less attentive to the abnormality monitoring task due to fatigue, etc. When such a situation occurs, a conventional test system that does not grasp the condition of the tester has the problem of being unable to avoid a situation in which the occurrence of an abnormality cannot be correctly determined due to the condition of the tester.

[0006] The present invention has been made in consideration of the above circumstances, and its purpose is to provide a testing system that can easily avoid inaccurate determination of the abnormal state of the test object due to the state of the tester. [Means for solving the problem]

[0007] A test system according to a first aspect of the present invention comprises one or more test condition setting devices that set test conditions for testing a test object, a control device that controls the test condition setting devices, one or more first detectors that acquire first detection information regarding the state of the test object, and one or more second detectors that acquire second detection information regarding the state of a tester involved in the test, wherein the tester may operate at least one of the test object, the test condition setting devices, and the control device during the test, and the control device determines an abnormal state of the test object based on the first detection information and the second detection information. In this test system, during testing of a test object, at least one of the test object, the test condition setting device, and the control device may be operated by a tester. Therefore, an abnormal state occurring in the test object may differ depending on the state of the tester performing these operations. With the above configuration, the abnormal state of the test object is determined based not only on the first detection information regarding the state of the test object but also on the second detection information regarding the state of the tester. Therefore, it is possible to more accurately determine the abnormal state of the test object than when the abnormal state is determined based only on the first detection information regarding the state of the test object.

[0008] Preferably, the test system has an operation status detector which is a second detector that acquires operation status information indicating the operation status of at least one of the test object, the test condition setting device, and the control device by the tester, and when operation status information indicating that no operation has been performed by the tester is acquired, the control device determines the abnormal state of the test object based on the first detection information. According to this configuration, when operation status information indicating that no operation by the tester (operation of the test object, operation of the test condition setting device, operation of the control device) is performed is acquired, the abnormal state of the test object is determined based on the first detection information related to the state of the test object. In this case, since the operation of the tester does not affect the first detection information, it is possible to accurately determine the abnormal state of the test object based on the first detection information.

[0009] The control device may stop determining the abnormal state of the test object based on the first detection information when operation status information indicating that an operation by a tester (operation of the test object, operation of the test condition setting device, operation of the control device) is being performed. This makes it possible to avoid inaccurate determination of the abnormal state based on the first detection information when an operation by a tester may affect the first detection information.

[0010] For example, the test object is a vehicle, and a tester can operate an acceleration control to accelerate the vehicle during vehicle testing. The test system includes a vehicle load setting device that is a test condition setting device that can set the load applied to the axles of the vehicle while it is running, a vehicle operation setting device that is a test condition setting device that can set the operation amount of the acceleration control, and a displacement amount detector that is a first detector that acquires displacement amount information regarding the displacement amount of the vehicle in a direction perpendicular to the vehicle's specified direction of travel. When operation status information is acquired that indicates that the acceleration control of the test object has not been operated by the tester, the control device determines the vehicle's meandering state based on the displacement amount indicated by the displacement amount information. According to this configuration, when operation status information indicating that the acceleration operating device of the test subject has not been operated by the tester is acquired, the meandering state of the vehicle is determined based on the displacement amount indicated by the displacement amount information. The operation amount of the acceleration operating device is set by the vehicle operation setting device, so there is no possibility that the tester is intentionally operating the acceleration operating device to cause the vehicle to meander. Therefore, it is possible to accurately determine the meandering state of the vehicle based on the displacement amount indicated by the displacement amount information.

[0011] Preferably, the test system has a first rotational speed detector which is a first detector that acquires first rotational speed information related to the rotational speed of the vehicle's axle, and an operation amount detector which is a first detector that acquires operation amount information related to the operation amount of the acceleration operation device set by the vehicle operation setting device, and when operation status information is acquired indicating that the acceleration operation device of the test object has not been operated by the tester, the control device acquires an upper limit value of the displacement amount based on the first rotational speed information and the operation amount information, and determines the vehicle's snaking state based on the acquired upper limit value and the displacement amount indicated by the displacement amount information. According to this configuration, when operation status information indicating that the acceleration operating device of the test subject has not been operated by the tester is acquired, an upper limit value for the displacement amount is acquired based on the first rotation speed information and the operation amount information, and the meandering state of the vehicle is determined based on this acquired upper limit value and the displacement amount indicated by the displacement amount information. In this case, the operation amount of the acceleration operating device is set by the vehicle operation setting device, and there is no possibility that the tester is operating the acceleration operating device to intentionally cause the vehicle to meander. Therefore, it is possible to accurately determine the meandering state of the vehicle based on the upper limit value for the displacement amount acquired based on the first rotation speed information and the operation amount information and the displacement amount indicated by the displacement amount information.

[0012] Preferably, when the control device determines that the vehicle is in a serpentine state, it changes the amount of operation of the acceleration control device set by the vehicle operation setting device so that the acceleration of the vehicle decreases, and reduces the load set by the vehicle load setting device. According to this configuration, when the vehicle starts to meander, the acceleration of the vehicle is reduced and the load set by the vehicle load setting device is reduced, so that the meandering state is more likely to be stopped.

[0013] Preferably, the test system has an operation status detector which is a second detector that acquires operation status information indicating the operation status of at least one of the test object, the test condition setting device, and the control device by the tester, and when operation status information indicating that no operation is being performed by the tester is acquired, the control device judges the abnormal state of the test object using a first judgment criterion based on the first detection information, and when operation status information indicating that operation is being performed by the tester is acquired, the control device judges the abnormal state of the test object using a second judgment criterion different from the first judgment criterion based on the first detection information. According to this configuration, the criteria for determining an abnormal state of the test object based on the first detection information differ depending on whether or not an operation by a tester (operation of the test object, operation of the test condition setting device, operation of the control device) is being performed. As a result, even if the nature of the abnormal state of the test object differs depending on whether or not an operation by a tester is being performed, it is possible to accurately determine the abnormal state using appropriate criteria defined for each case.

[0014] A test system according to a second aspect of the present invention comprises one or more test condition setting devices that set test conditions for testing of test objects, a control device that controls the test condition setting devices, one or more first detectors that acquire first detection information regarding the state of the test object, a display device that displays test monitoring information according to the first detection information acquired during the test, and one or more second detectors that acquire second detection information regarding the state of the test personnel involved in the test, wherein the test personnel monitor the test object for abnormalities based on the test monitoring information displayed on the display device during the test, and the control device determines based on the second detection information whether the test personnel can monitor the test object for abnormalities, and if it determines based on the first detection information that an abnormality has occurred in the test object or that it is in a state where an abnormality may occur, and determines that the abnormality monitoring cannot be carried out, it sends a support request to a specified request receiving destination to request support for the test personnel's abnormality monitoring work. According to this configuration, if it is determined based on the first detection information that an abnormality has occurred in the test object or that a state in which an abnormality may occur has been reached, and if it is determined that the tester is unable to monitor the abnormality, a support request for assistance with the abnormality monitoring work of the tester is sent to a predetermined request receiving destination. This allows the tester to receive support, making it easier to avoid a situation in which the tester's condition makes it impossible to accurately determine an abnormality in the test object.

[0015] Preferably, the test system has a tension state detector which is a second detector that acquires tension state information regarding the tension state of the tester, and a gaze detector which is a second detector that acquires gaze information regarding the gaze of the tester, and the control device determines that the tester is in a tension state based on the tension state information, and when it determines based on the gaze information that the tester is not looking at the test monitoring information on the display device, it determines that the tester cannot monitor for abnormalities. According to this configuration, if it is determined that the tester is in a state of tension based on the tension state information and it is determined that the tester is not looking at the test monitoring information on the display device based on the gaze information, it is expected that the tester is under strong psychological stress due to the abnormal state indicated by the test monitoring information on the display device and is unable to calmly monitor the test monitoring information, and therefore it is determined that the tester is unable to monitor the abnormality.

[0016] Preferably, the test system has an alarm device that issues an alarm to draw the attention of the tester, and when the control device determines based on the tension state information that the tester is not in a tension state and based on the gaze information that the tester is not looking at the test monitoring information on the display device, it determines that the tester's attention to the abnormality monitoring work has decreased, and when it determines based on the first detection information that an abnormality has occurred in the test object or that the state is such that such an abnormality may occur and it determines that the tester's attention to the abnormality monitoring work has decreased, it controls the alarm device to issue an alarm to draw the attention of the tester. With this configuration, if it is determined based on the tension state information that the tester is not in a tension state, and based on the line of sight information that the tester is not looking at the test monitoring information on the display device, it is determined that the tester's attention to the abnormality monitoring work is decreasing. In this case, the alarm operation of the alarm device will attract the tester's attention, making it easier to avoid a situation where an abnormality in the test object cannot be accurately determined.

[0017] A test system according to a third aspect of the present invention includes one or more test condition setting devices that set test conditions for testing a test object, a control device that controls the test condition setting devices, one or more first detectors that obtain first detection information related to the state of the test object, a display device that displays test monitoring information according to the first detection information obtained during the test, a notification device that issues a notification to attract the attention of a tester, and a plurality of second detectors that obtain second detection information related to the state of a tester involved in the test, the plurality of second detectors including a tension state detector that obtains tension state information related to the tension state of a tester involved in the test, and a gaze information related to the gaze of the tester. and a gaze detector for detecting the gaze of the test subject during the test, wherein the tester monitors for abnormalities in the test object based on the test monitoring information displayed on the display device, and when the control device determines that the tester is not in a state of tension based on the tension state information and that the tester is not looking at the test monitoring information on the display device based on the gaze information, it determines that the tester is paying less attention to the task of monitoring for abnormalities, and when it determines that an abnormality has occurred in the test object or that a state has arisen in which the abnormality may occur based on the first detection information and it determines that the tester is paying less attention to the task of monitoring for abnormalities, it controls the alarm device to issue an alarm to draw the attention of the tester.

[0018] Preferably, the display device operates as an informing device that displays information to attract the attention of a person in charge of testing. This configuration makes it easier for the tester to pay attention to the display device.

[0019] When the control device determines that the tester is in a state of tension based on the tension state information and determines that the tester is looking at the test monitoring information on the display device based on the gaze information, it determines that the tester is paying more attention to the abnormality monitoring work, and when it determines that the tester is paying more attention to the abnormality monitoring work, it sets a stricter standard for determining that an abnormality has occurred in the test object based on the first detection information or that the state is such that said abnormality may occur than when it does not determine that the tester is paying more attention to the abnormality monitoring work. According to this configuration, if it is determined that the tester is in a state of tension based on the tension state information and if it is determined that the tester is looking at the test monitoring information on the display device based on the gaze information, it is determined that the tester is paying close attention to the abnormality monitoring work. In this case, the standard for determining that an abnormality has occurred in the test object or that the abnormality may occur based on the first detection information is set to a stricter standard than when it is not determined that the tester is paying close attention to the abnormality monitoring work. This makes it possible to conduct testing close to the boundary between the normal state and the abnormal state, making it easier to obtain useful test data.

[0020] A test system according to a fourth aspect of the present invention includes one or more test condition setting devices that set test conditions for a test of a test object, a control device that controls the test condition setting devices, one or more first detectors that obtain first detection information related to the state of the test object, a display device that displays test monitoring information according to the first detection information obtained during the execution of the test, and a plurality of second detectors that obtain second detection information related to the state of test personnel involved in the test, wherein the plurality of second detectors include a tension state detector that obtains tension state information related to the state of tension of test personnel involved in the test, and a gaze detector that obtains gaze information related to the gaze of the test personnel, During the test, the tester monitors the test subject for abnormalities based on the first detection information displayed on the display device, and when the control device determines that the tester is in a state of tension based on the tension state information and determines that the tester is looking at the test monitoring information on the display device based on the gaze information, it determines that the tester is paying more attention to the task of monitoring for abnormalities, and when it determines that the tester is paying more attention to the task of monitoring for abnormalities, it sets a stricter standard for determining that an abnormality has occurred in the test subject based on the first detection information or that the test subject is in a state where such an abnormality may occur than when it does not determine that the tester is paying more attention to the task of monitoring for abnormalities.

[0021] The object to be tested is an engine, and the test system has an engine load setting device which is a test condition setting device capable of setting the load applied to the engine output, at least one of a second rotational speed detector which is a first detector which acquires second rotational speed information related to the engine rotational speed, and a torque detector which is a first detector which acquires torque information related to the engine torque, and a display device which displays test monitoring information according to at least one of the second rotational speed information and the torque information acquired during the test, and during the engine test, a tester monitors the engine for abnormalities based on the test monitoring information displayed on the display device. This configuration makes it easier to avoid situations where an engine abnormality cannot be accurately determined due to the condition of the person in charge of testing. [Effects of the Invention]

[0022] According to the present invention, a test system can be provided that can easily prevent inappropriate responses by test personnel even if the test personnel find themselves in an undesirable state for the performance of the test during the test. [Brief explanation of the drawings]

[0023] [Figure 1] FIG. 1 is a diagram showing an example of the configuration of a test system according to the first embodiment. [Figure 2] FIG. 2 is a flowchart illustrating the operation of the test system according to the first embodiment. [Figure 3] FIG. 3 is a diagram illustrating an example of the configuration of a test system according to the second embodiment. [Figure 4] Fig. 4A is a flowchart illustrating the operation of the test system according to the second embodiment, and Fig. 4B is a diagram illustrating the relationship between the actually measured displacement amount indicated by the displacement amount information and the margin value of the displacement amount that changes together with the estimated displacement amount. [Figure 5] FIG. 5 is a flowchart for explaining the operation of the test system according to the third embodiment. [Figure 6] FIG. 6 is a diagram showing an example of the configuration of a test system according to the fourth embodiment. [Figure 7] FIG. 7 is a flowchart for explaining the operation of the test system according to the fourth embodiment. [Figure 8] FIG. 8 is a diagram showing a modified example of the configuration of the test system according to the fourth embodiment. [Figure 9] FIG. 9 is a diagram illustrating an example of the configuration of a test system according to the fifth embodiment. [Figure 10] FIG. 10 is a flowchart for explaining the operation of the test system according to the fifth embodiment. [Figure 11] FIG. 11 is a flowchart for explaining the operation of the test system according to the sixth embodiment. [Figure 12] FIG. 12 is a flowchart for explaining the operation of the test system according to the seventh embodiment. [Figure 13] FIG. 13 is a first flowchart illustrating the operation of the test system according to the eighth embodiment. [Figure 14] FIG. 14 is a second flowchart illustrating the operation of the test system according to the eighth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0024] First Embodiment Fig. 1 is a diagram showing an example of the configuration of a test system 1 according to the first embodiment. The test system 1 shown in Fig. 1 includes a test condition setting device 2, a control device 3, a first detector 4, a second detector 5, an operation device 6, a display device 7, and a communication device 9.

[0025] The test condition setting device 2 is a device that sets test conditions for the test object 100. For example, in the case of a chassis dynamometer that tests the power performance, fuel economy, etc. of an automobile, the test condition setting device 2 corresponds to a device that sets the load applied to the automobile's axles, a device that sets the amount of depression of the accelerator pedal and brake pedal, a device that sets the amount of air blown from the front of the vehicle body, etc. In the example of Figure 1, the test system 1 is equipped with multiple test condition setting devices 2, but the number of test condition setting devices 2 may be one.

[0026] The first detector 4 acquires information (hereinafter sometimes referred to as "first detected information") relating to the state of the test object 100. For example, in the case of a chassis dynamometer, the first detector 4 corresponds to a device that acquires the rotation speed of the axle, the magnitude of the load on the axle, the rotation speed of the engine, the amount of specified exhaust gas discharged, etc. In the example of FIG. 1, the test system 1 is equipped with multiple first detectors 4, but the number of first detectors 4 may be one.

[0027] The second detector 5 acquires information (hereinafter sometimes referred to as "second detected information") relating to the state of the tester 200 involved in the test. In the test system 1, the tester 200 may operate at least one of the test object 100, the test condition setting device 2, and the control device 3, and the second detector 5 detects the state of the tester 200 relating to these operations (whether or not the operation is being performed, whether or not the operation can be performed appropriately, etc.).

[0028] For example, the second detector 5 includes a device (camera, infrared sensor, ultrasonic sensor, contact sensor, wireless tag reader, etc.) for acquiring information indicating the operating status (presence or absence of operation, etc.) of at least one of the test object 100, the test condition setting device 2, and the control device 3 by the tester 200. Alternatively, the second detector 5 may include a biosensor that acquires biometric information of the tester 200 (pulse, body temperature, electrical skin resistance, electrooculography, acceleration of specific body parts, brain waves, etc.), a camera that photographs the face and body of the tester 200, an acceleration sensor that detects the body movements of the tester 200, etc., as a device for acquiring information regarding the psychological state of the tester 200 (degree of tension, degree of concentration, etc.).

[0029] The operation device 6 inputs instructions and other information according to user operations to the control device 3. The operation device 6 includes devices with input functions, such as a keyboard, a mouse, a touchpad, a touch panel, buttons, a microphone, and a camera.

[0030] The display device 7 is a device that displays test monitoring information corresponding to the first detection information acquired by the first detector 4 during the execution of the test. The display device 7 may include, for example, a liquid crystal display, an organic EL display, a projector, an eyeglass-type display, etc. The display device 7 displays a screen corresponding to a video signal generated in the control device 3.

[0031] The communication device 9 communicates with other devices via a communication network (such as a LAN, a WAN, or the Internet). The communication device 9 includes, for example, a device (such as a network interface card) that has a function of communicating in accordance with a predetermined communication standard (such as a wireless LAN or Ethernet (registered trademark)).

[0032] The control device 3 is a device that controls the test condition setting device 2, and executes predetermined processes related to the testing of the test object 100. For example, the control device 3 controls the start and end of the test by the test condition setting device 2, controls the test conditions set by the test condition setting device 2, records the first detection information acquired by the first detector 4 during the test, generates a screen on the display device 7 that includes test monitoring information according to the first detection information, monitors abnormalities in the test object 100 based on the first detection information and second detection information, and controls the test condition setting device 2 when an abnormality occurs.

[0033] The control device 3 may include, for example, one or more computers that execute predetermined processes related to testing of the test object 100 according to program instructions. The control device 3 may also include dedicated hardware (such as an ASIC or FPGA) configured to cooperate with the computer to execute part of the processes.

[0034] Here, the operation of the test system 1 having the above-described configuration shown in FIG. 1 will be described with reference to the flowchart of FIG.

[0035] The control device 3 starts a test on the test object 100 in response to an instruction from the test technician 200 input from the operation device 6 (ST100). When the test starts, the control device 3 controls the test condition setting device 2 to set the test conditions for the test object 100 to predetermined conditions, and records the first detection information acquired by the first detector 4. The control device 3 also displays test monitoring information on the display device 7 according to the first detection information acquired during the test.

[0036] In this embodiment, the test conditions set by the test condition setting device 2 may be determined in advance, or may be operated during the test by the tester 200. In the former case, for example, the control device 3 controls the test condition setting device 2 so as to set the test conditions input in advance by the tester 200. In the latter case, for example, the control device 3 controls the test condition setting device 2 in response to instructions from the tester 200 input from the operation device 6 during the test. Alternatively, the tester 200 may directly input instructions to another operation device (not shown) provided in the test condition setting device 2, and the test condition setting device 2 may set the test conditions in response to those instructions.

[0037] During the test, the tester 200 may operate at least one of the test object 100, the test condition setting device 2, and the control device 3. The second detector 5 detects the state of the tester 200 related to these operations (whether or not the operation is being performed, whether or not the operation can be performed appropriately, etc.), and obtains information related to the detected state of the tester 200 as second detection information.

[0038] The control device 3 determines the abnormal state of the test object 100 based on the first detection information regarding the state of the test object 100 acquired by the first detector 4 and the second detection information regarding the state of the tester 200 acquired by the second detector 5 (ST110).

[0039] As described above, the tester 200 may operate at least one of the test object 100, the test condition setting device 2, and the control device 3, and therefore the abnormal state occurring in the test object 100 may differ depending on the state of the operation of the tester 200 on the test object 100, etc. Therefore, the control device 3 determines the abnormal state of the test object 100 by taking into account the second detection information regarding the state of the tester 200 in addition to the first detection information regarding the state of the test object 100.

[0040] For example, if the specific first detection information satisfies the abnormality determination criterion when the tester 200 is not performing a specific operation (such as operating the test object 100), it can be determined that the test object 100 is in a specific abnormal state. In this case, if the second detector 5 acquires second detection information indicating that the tester 200 is not performing a specific operation and the specific first detection information satisfies the abnormality determination criterion, the control device 3 determines that the test object 100 is in a specific abnormal state.

[0041] Furthermore, if the specific first detection information satisfies the abnormality determination criterion when the testing personnel 200 is performing a specific operation, it can be determined that the test object 100 is in a specific abnormal state. In this case, if the second detector 5 acquires second detection information indicating that the testing personnel 200 is performing a specific operation and the specific first detection information satisfies the abnormality determination criterion, the control device 3 determines that the test object 100 is in a specific abnormal state.

[0042] Furthermore, when the tester 200 is in a predetermined mental state (such as excessive tension or a lack of concentration), if the specific second detection information satisfies the abnormality determination criteria for the predetermined mental state (for example, a criterion that makes it easier to determine an abnormality than the abnormality determination criteria when the tester is not in the predetermined mental state), it is possible to determine that the test object 100 is in a specific abnormal state. In this case, if the second detector 5 acquires second detection information that indicates that the tester 200 is in the predetermined mental state and the specific second detection information satisfies the abnormality determination criteria for the predetermined mental state, the control device 3 determines that the test object 100 is in a specific abnormal state.

[0043] If it is determined that the test object 100 is in an abnormal state (Yes in ST110), the control device 3 executes a predetermined process according to the abnormal state (ST160). For example, the control device 3 may display a message or a graphic indicating that an abnormal state has occurred on the display device 7, or may control the test condition setting device 2 to stop the test being performed.

[0044] The control device 3 repeats the processes of steps ST110 and ST160 described above while the test is being performed (No in ST180). When an instruction to end the test is input through the operation device 6 or when a predetermined end condition is met, the control device 3 ends the test (Yes in ST180).

[0045] As described above, in the test system 1, in testing the test object 100, at least one of the test object 100, the test condition setting device 2, and the control device 3 may be operated by the tester 200. Therefore, an abnormal state occurring in the test object 100 may differ depending on the state of the tester 200 performing these operations. According to this embodiment, the abnormal state of the test object 100 is determined based not only on the first detection information regarding the state of the test object 100 but also on the second detection information regarding the state of the tester 200. Therefore, the abnormal state of the test object 100 can be determined more accurately than when the abnormal state is determined based only on the first detection information regarding the state of the test object 100.

[0046] 2 shows an example in which a determination is made for one abnormal state, but in other examples of this embodiment, determinations may be made for multiple different abnormal states in parallel. In this case, the control device 3 may determine all abnormal states based on the first detection information and the second detection information, or may determine some abnormal states based only on the first detection information.

[0047] <Second embodiment> Next, a second embodiment of the present invention will be described. Fig. 3 is a diagram showing an example of the configuration of a test system 1A according to the second embodiment. The test system 1A shown in Fig. 3 is a chassis dynamometer, and the test object 100 is a vehicle. The test system 1A has a vehicle load setting device 2A and a vehicle operation setting device 2B as examples of a test condition setting device 2, a first rotational speed detector 4A, an operation amount detector 4B, and a displacement amount detector 4C as examples of a first detector 4, and an operation state detector 5A as an example of a second detector 5. The other configuration of the test system 1A shown in Fig. 3 is the same as that of the test system 1 shown in Fig. 1.

[0048] The vehicle load setting device 2A sets the load applied to the axle of the vehicle (test object 100) in a running state under the control of the control device 3. For example, the vehicle load setting device 2A sets the rotational load of a roller that rotates in contact with the tire of the vehicle.

[0049] Vehicle operation setting device 2B sets the operation amount of each operating device that the driver operates to drive the vehicle (test object 100) under the control of control device 3. Specifically, vehicle operation setting device 2B sets the operation amount of acceleration operating device 101 (also called accelerator) for accelerating the vehicle, the operation amount of the brake for decelerating the vehicle, etc.

[0050] The first rotational speed detector 4A acquires information (hereinafter, sometimes referred to as "first rotational speed information") relating to the rotational speed of the axle of the vehicle (test object 100). The first rotational speed detector 4A acquires the first rotational speed information, for example, based on video captured by a camera of the vehicle's axle, tires rotating together with the axle, etc. Alternatively, the first rotational speed detector 4A may acquire the first rotational speed information based on a signal indicating the intensity of reflected light of a laser irradiated onto the axle, tires, etc.

[0051] The operation amount detector 4B acquires information (hereinafter, sometimes referred to as "operation amount information") related to the operation amount of the acceleration operation device 101 set by the vehicle operation setting device 2B. For example, the operation amount detector 4B detects the amount of displacement of the accelerator pedal or the like of the acceleration operation device 101 caused by the driving of an actuator provided in the vehicle operation setting device 2B using a displacement sensor (such as an optical sensor, a magnetic sensor, or a strain sensor).

[0052] The displacement detector 4C acquires displacement information relating to the displacement of the vehicle (test object 100) in a direction perpendicular to a predetermined traveling direction of the vehicle. The direction perpendicular to the predetermined traveling direction of the vehicle is set, for example, based on the rotation axis of the rotation mechanism of the vehicle load setting device 2A that comes into contact with the vehicle tires to generate a load. The vehicle displacement indicates the magnitude of the vehicle's relative displacement with respect to a reference position set on the frame of the vehicle load setting device 2A that supports this rotation axis. The displacement detector 4C may be, for example, an optical displacement meter such as a laser displacement meter, a displacement meter that uses magnetic or radio wave intensity, or one that detects the displacement based on video captured by a camera.

[0053] The operation state detector 5A acquires operation state information indicating the operation state of the acceleration operating device 101 of the vehicle (test object 100) by the tester 200. For example, the operation state detector 5A acquires operation state information indicating whether or not the tester 200 has operated the acceleration operating device 101 based on the detection result of a human presence sensor (camera, infrared sensor, ultrasonic sensor, contact sensor, etc.) that detects whether or not the tester 200 is in the driver's seat of the vehicle (test object 100). Alternatively, the operation status detector 5A may acquire operation status information indicating whether the tester 200 is in a location (near the driver's seat) where he can operate the acceleration operating device 101, based on the results of receiving a signal from a wireless tag mounted on a card or electronic device carried by the tester 200 by a wireless tag reader placed near the driver's seat. As yet another example, the operation status detector 5A may acquire operation status information indicating whether the tester 200 is in a location where he or she can operate the acceleration operator 101, based on geographical location information acquired by a location information acquisition device (such as an indoor positioning system) installed in an electronic device (such as a smartphone) carried by the tester 200.

[0054] Fig. 4 is a flowchart for explaining the operation of the test system 1A according to the second embodiment. The flowchart shown in Fig. 4 is obtained by replacing step ST110 in the flowchart shown in Fig. 2 with step ST110A, and by replacing step ST160 with step ST160A. Step ST110A includes steps ST125 and ST130. Here, steps ST125, ST130, and ST160A will be described.

[0055] When the test starts (ST100), the control device 3 determines whether the acceleration operating device 101 of the vehicle (test object 100) is being operated by the tester 200 based on the operating state information acquired by the operating state detector 5A (ST125).

[0056] If operation state detector 5A acquires operation state information indicating that acceleration operating device 101 has not been operated by tester 200 (No in ST125), control device 3 determines whether the vehicle (test object 100) is meandering based on the first rotation speed information acquired by first rotation speed detector 4A, the operation amount information acquired by operation amount detector 4B, and the displacement amount information acquired by displacement amount detector 4C (ST130). That is, control device 3 acquires upper limit value TH of the displacement amount based on the first rotation speed information and the operation amount information, and determines the meandering state of the vehicle based on this upper limit value TH of the displacement amount and the vehicle displacement amount L1 indicated by the displacement amount information.

[0057] Even when the vehicle is in a normal state and not yet in a meandering state, some lateral displacement (perpendicular to the direction of travel) occurs as the vehicle travels. As the vehicle speed and acceleration increase, the lateral displacement of the vehicle also increases accordingly. The estimated vehicle displacement L2 (also referred to as the "estimated displacement L2") can be experimentally or theoretically determined based on the vehicle speed (axle rotational speed) indicated by the first rotational speed information and the vehicle acceleration (axle angular acceleration) indicated by the operation amount information. Furthermore, a margin MH from the estimated displacement L2 relative to the upper limit TH of the displacement (the boundary between the normal state and the meandering state) can also be set based on the vehicle speed indicated by the first rotational speed information and the vehicle acceleration indicated by the operation amount information. Therefore, for example, the control device 3 may obtain the upper limit TH, which corresponds to the sum of the estimated displacement L2 and the margin MH, based on the vehicle speed indicated by the first rotational speed information and the vehicle acceleration indicated by the operation amount information. Alternatively, the relationship between the vehicle speed (axle rotation speed) indicated by the first rotation speed information, the vehicle acceleration (axle angular acceleration) indicated by the operation amount information, and the upper limit value TH of the displacement amount may be determined in advance based on measurement data collected while the vehicle is actually traveling. In this case, the control device 3 may acquire the upper limit value TH of the displacement amount by applying the detected first rotation speed information and operation amount information to this relationship. When the control device 3 acquires the upper limit value TH of the displacement amount based on the first rotation speed information and the operation amount information, it determines whether the vehicle is in a meandering state based on the result of comparing the vehicle displacement amount L1 indicated by the displacement amount information with the upper limit value TH.

[0058] FIG. 4B is a diagram showing the relationship between the vehicle displacement L1 (also referred to as "actual displacement L1") indicated by the displacement information and the displacement margin (MH, ML) that changes with the estimated displacement L2. As shown in FIG. 4B, when the actual displacement L1 is larger than the margin MH compared to the estimated displacement L2 (when the actual displacement L1 is larger than the upper limit value TH, which corresponds to the sum of the estimated displacement L2 and the margin MH), it is determined that the vehicle is meandering. As shown in FIG. 4B, the margin MH changes with the estimated displacement L2. As the estimated displacement L2 increases, the margin MH also tends to increase.

[0059] In FIG. 4B , the region where the measured displacement amount L1 is smaller than the margin ML compared to the estimated displacement amount L2 is indicated by diagonal lines as a region where the displacement amount is too small. If the measured displacement amount L1 is in this region, there is a possibility that the vehicle is being restrained too strongly or that the tires are slipping. The control device 3 may, for example, acquire a lower limit value TL corresponding to a value obtained by subtracting the margin ML from the estimated displacement amount L2 based on the vehicle speed indicated by the first rotation speed information and the vehicle acceleration indicated by the operation amount information. In this case, the control device 3 may determine whether the vehicle displacement amount is too small based on the result of comparing the vehicle displacement amount L1 indicated by the displacement amount information with the lower limit value TL, and may display this determination result on the display device 7.

[0060] If it is determined in step ST130 that the vehicle (test object 100) is in a meandering state, the control device 3 changes the operation amount of the acceleration control device 101 set by the vehicle operation setting device 2B so as to reduce the acceleration of the vehicle, and controls the vehicle load setting device 2A so as to reduce the load set on the axle (ST160A). For example, the control device 3 controls the vehicle operation setting device 2B and the vehicle load setting device 2A so as to set the acceleration of the vehicle to zero and the load set on the axle to zero. This makes it easier for the vehicle to stop meandering.

[0061] The control device 3 repeats the processes of steps ST110A and ST160A described above while the test is being performed (No in ST180). When an instruction to end the test is input through the operation device 6 or when a predetermined end condition is met, the control device 3 ends the test (Yes in ST180).

[0062] As described above, according to this embodiment, when operation state information indicating that the acceleration operating device 101 of the vehicle (test object 100) is not operated by the tester 200 is acquired, the meandering state of the vehicle is determined based on the first rotational speed information acquired by the first rotational speed detector 4A, the operation amount information acquired by the operation amount detector 4B, and the displacement amount information acquired by the displacement amount detector 4C. In this case, the operation amount of the acceleration operating device 101 is set by the vehicle operation setting device 2B, and there is no possibility that the tester 200 is intentionally operating the acceleration operating device 101 to cause the vehicle to meander. Therefore, it is possible to accurately determine the meandering state of the vehicle based on the travel distance of the vehicle (actual travel distance) calculated based on the first rotational speed information and the travel distance of the vehicle estimated based on the operation amount information (estimated travel distance).

[0063] Furthermore, according to this embodiment, when it is determined that the vehicle (test object 100) is in a meandering state, the operation amount of the acceleration operation device 101 set by the vehicle operation setting device 2B is changed so that the vehicle acceleration decreases, and the load on the axle set by the vehicle load setting device 2A is reduced, thereby making it easier to converge the vehicle's meandering state.

[0064] In the above-described test system 1A, the upper limit value TH of the displacement amount is obtained based on the first rotation speed information and the operation amount information, and whether or not the vehicle is in a meandering state is determined based on the result of comparing the vehicle displacement amount L1 indicated by the displacement amount information with the upper limit value TH, but the meandering state may also be determined in other ways. For example, the control device 3 may determine whether the vehicle is meandering based on the result of comparing the vehicle displacement L1 indicated by the displacement amount information with an upper limit value of the displacement amount that is set to a predetermined fixed value. Alternatively, the control device 3 may calculate the angle of the vehicle body's deviation relative to the vehicle's direction of travel based on multiple displacement amounts detected at multiple locations on the vehicle (such as the front and rear of the vehicle body), and if the calculated angle exceeds a predetermined threshold value, determine that the vehicle is meandering.

[0065] Furthermore, in the above-described test system 1A, the operation status detector 5A acquires operation status information indicating whether or not the tester 200 has operated the test object 100. However, in another example of the present embodiment, the operation status detector 5A may acquire operation status information (information indicating whether or not an operation by the tester 200 has been performed) indicating the operation status of at least one of the test object 100, the test condition setting device 2, and the control device 3 by the tester 200. In this example, when operation status information from the operation status detector 5A indicating that the tester 200 has not performed an operation (operation of the test object 100, operation of the test condition setting device 2, operation of the control device 3) is acquired, the control device 3 may determine the abnormal state of the test object 100 based on the first detection information. In this way, when determining the abnormal state of the test object 100, the operations of the tester 200 (operation of the test object 100, operation of the test condition setting device 2, operation of the control device 3) do not affect the first detection information, and therefore it is possible to accurately determine the abnormal state of the test object 100 based on the first detection information.

[0066] <Third embodiment> Next, a third embodiment of the present invention will be described. The test system according to the third embodiment has a configuration generally similar to that of the test system 1 shown in Fig. 1. However, the test system according to the third embodiment has an operation status detector 5A similar to that of the test system 1A shown in Fig. 3 as the second detector 5. The operation status detector 5A in this embodiment acquires operation status information (information indicating whether or not an operation has been performed by the tester 200) indicating the operation status of at least one of the test object 100, the test condition setting device 2, and the control device 3 by the tester 200.

[0067] 5 is a flowchart for explaining the operation of the test system according to the third embodiment. The operation of the control device 3 in the test system according to the third embodiment differs from that of the flowchart shown in FIG. 2 described above. In the flowchart shown in FIG. 5, step ST110 in the flowchart shown in FIG. 2 is replaced with step ST110B. Step ST110B includes steps ST135, ST140, and ST145. Steps ST135, ST140, and ST145 will be described below.

[0068] When the test starts (ST100), the control device 3 determines whether or not the tester 200 is performing operations (operation of the test object 100, operation of the test condition setting device 2, operation of the control device 3) based on the operation status information acquired by the operation status detector 5A (ST135).

[0069] If the operation status detector 5A acquires operation status information indicating that no operation by the tester 200 (operation of the test object 100, operation of the test condition setting device 2, operation of the control device 3) has been performed (No in ST135), the control device 3 determines the abnormal state of the test object 100 using the first determination criterion based on the first detection information acquired by the first detector 4 (ST140). If the control device 3 determines that the test object 100 is in an abnormal state using the first determination criterion (Yes in ST140), the control device 3 proceeds to step ST160 and executes a predetermined process according to the abnormal state.

[0070] When operation status detector 5A acquires operation status information indicating that the tester 200 is performing operations (operation of test object 100, operation of test condition setting device 2, operation of control device 3) (Yes in ST135), the control device 3 determines whether the test object 100 is in an abnormal state using a second determination criterion different from the first determination criterion in step ST140, based on the first detection information acquired by the first detector 4 (ST145). When determining that the test object 100 is in an abnormal state using the second determination criterion (Yes in ST145), the control device 3 proceeds to step ST160 and executes a predetermined process according to the abnormal state.

[0071] As described above, according to this embodiment, the criteria for determining whether the test object 100 is in an abnormal state based on the first detection information are different (first determination criterion, second determination criterion) depending on whether or not the tester 200 is performing an operation (operation of the test object 100, operation of the test condition setting device 2, operation of the control device 3). This makes it possible to accurately determine whether or not the test object 100 is in an abnormal state based on appropriate determination criteria determined for each case, even if the nature of the abnormal state of the test object 100 differs depending on whether or not the tester 200 is performing an operation.

[0072] In addition, when multiple different first detection information are acquired by multiple first detectors 4, the one or more first detection information referenced in determining an abnormal state based on the first judgment criterion and the one or more first detection information referenced in determining an abnormal state based on the second judgment criterion may all be the same, or at least some of them may be different.

[0073] <Fourth embodiment> Next, a fourth embodiment of the present invention will be described. Fig. 6 is a diagram showing an example of the configuration of a test system 1B according to the fourth embodiment. The test system 1B shown in Fig. 6 has a configuration generally similar to that of the test system 1 shown in Fig. 1. However, in the test system 1B according to this embodiment, the tester 200 is responsible for monitoring abnormalities in the test object 100 based on test monitoring information (information corresponding to the first detection information acquired during the test) displayed on the display device 7.

[0074] Furthermore, at least a part of the second detectors 5 in the test system 1B acquires, as second detected information, information indicating the state of the tester 200 (e.g., mental state such as tension or concentration) related to the ability to monitor abnormalities in the test object 100. The second detectors 5 include, for example, a biosensor that acquires bioinformation of the tester 200 (pulse, body temperature, electrical resistance of the skin, electrooculography, acceleration of specific body parts, brain waves, etc.), a camera that photographs the face and body of the tester 200, an acceleration sensor that detects the body movements of the tester 200, etc., as devices for acquiring information related to the psychological state of the tester 200 (level of tension, level of concentration, etc.).

[0075] 6 includes a notification device 8 in addition to the same configuration as the test system 1. The notification device 8 issues various notifications to the tester 200. The notification device 8 includes devices with notification functions, such as a speaker that outputs sound, a light that emits light, and a vibration generator. The notification device 8 performs notification operations under the control of the control device 3.

[0076] FIG. 7 is a flowchart for explaining the operation of the test system 1B according to the fourth embodiment.

[0077] The control device 3 starts a test on the test object 100 in response to an instruction from the test technician 200 input from the operation device 6 (ST200). When the test starts, the control device 3 controls the test condition setting device 2 to set the test conditions for the test object 100 to predetermined conditions, and records the first detection information acquired by the first detector 4. The control device 3 also displays test monitoring information corresponding to the first detection information acquired during the test on the display device 7. The test conditions set by the test condition setting device 2 may be predetermined, or may be set during the test by the operation of the test technician 200.

[0078] During the test, test monitoring information corresponding to the first detection information acquired by the first detector 4 is displayed on the display device 7, and the tester 200 monitors the test subject 100 for abnormalities based on this test monitoring information.

[0079] The control device 3 determines whether an abnormality has occurred in the test object 100 or whether a state in which an abnormality may occur has occurred based on the first detection information acquired by the first detector 4 during the test (ST230). If it determines that an abnormality has occurred in the test object 100 or whether a state in which an abnormality may occur has occurred (Yes in ST230), the control device 3 determines whether the tester 200 is in a state in which he or she can perform the work of monitoring the test object 100 for abnormalities based on the second detection information acquired by the second detector 5 (ST260). If it determines that the tester 200 is not in a state in which he or she can perform the work of monitoring the test object 100 for abnormalities (Yes in ST260), the control device 3 sends a support request (e.g., email) to a predetermined request recipient via the communication device 9, requesting support for the work of monitoring the test object 100 for abnormalities (ST280). In this case, the control device 3 also executes a predetermined process according to the abnormal state (ST290). For example, the control device 3 displays a message or a graphic indicating that an abnormal condition has occurred on the display device 7, or controls the alarm device 8 to perform a predetermined alarm operation to notify the occurrence of an abnormality.

[0080] While the test is being performed, the control device 3 repeats the processes of steps ST230, ST260, ST280, and ST290 described above (No in ST295). When an instruction to end the test is input through the operation device 6 or when a predetermined end condition is met, the control device 3 ends the test (Yes in ST295).

[0081] As described above, according to this embodiment, if it is determined based on the first detection information that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur has occurred, and if it is determined that the tester 200 cannot monitor the abnormality, a support request (such as an email) is sent to a predetermined request receiving destination to request support for the tester 200's abnormality monitoring work. This allows the tester 200 to receive support, making it easier to avoid a situation in which it becomes impossible to accurately determine an abnormality in the test object 100 due to the state of the tester 200.

[0082] Fig. 8 is a diagram showing a modified example of the test system according to this embodiment. The modified test system 1C shown in Fig. 8 is a system for testing the performance of an engine, and the test object 100 is an engine. The test system 1C has an engine load setting device 2C as the test condition setting device 2, and a second rotational speed detector 4D and a torque detector 4E as the first detector 4.

[0083] The engine load setting device 2C sets the load applied to the output of the engine (test object 100) under the control of the control device 3. For example, the engine load setting device 2C sets the rotational load applied to the output rotation shaft of the engine.

[0084] The second rotation speed detector 4D acquires information (hereinafter, sometimes referred to as "second rotation speed information") relating to the rotation speed of the engine (test object 100).

[0085] The torque detector 4E acquires information relating to the torque of the engine (test object 100) (hereinafter, sometimes referred to as "torque information").

[0086] The control device 3 displays, on the display device 7, as test monitoring information, information corresponding to the second rotational speed information and torque information acquired by the second rotational speed detector 4D and the torque detector 4E during the test.

[0087] When testing engine performance while applying a load to the engine output, the engine may experience abnormal combustion. When abnormal combustion occurs, changes that differ from normal conditions appear in, for example, the engine rotation speed and torque, the combustion chamber pressure indicated by an indicator, and the sound emitted from the engine. Since it is difficult to automatically determine whether abnormal combustion has occurred based on these changes, the judgment of the tester 200 is essential. According to this embodiment, when it becomes difficult for the tester 200 to monitor for abnormalities, the tester 200 can receive appropriate support, making it easier to avoid situations where it becomes impossible to determine subtle abnormal conditions such as abnormal engine combustion.

[0088] <Fifth embodiment> Next, a fifth embodiment of the present invention will be described. FIG. 9 is a diagram showing an example of the configuration of a test system 1D according to the fifth embodiment. The test system 1D shown in FIG. 9 has a configuration generally similar to that of the test system 1B shown in FIG. 6, except that the second detector 5 includes a gaze detector 5B and a tension state detector 5C.

[0089] The gaze detector 5B acquires, as second detection information, gaze information relating to the gaze of the tester 200. The gaze detector 5B may, for example, acquire an image of the eyes of the tester 200 captured by a camera, and detect the gaze direction of the tester 200 using a known method based on the acquired image of the eyes.

[0090] The tension detector 5C acquires tension information relating to the tension state of the tester 200 as the second detected information. The tension detector 5C may acquire biometric information (pulse, body temperature, electrical skin resistance, electrooculography, acceleration of specific body parts, brain waves, etc.) of the tester 200 from a sensor mounted on a device (such as a wearable device) worn by the tester 200, and detect the level of tension of the tester 200 based on the acquired biometric information. The tension detector 5C may also acquire video of the tester 200's face or body taken by a camera, and detect the level of tension of the tester 200 based on the acquired video of the face or body (for example, blinking frequency, limb movements, etc.).

[0091] Fig. 10 is a flowchart for explaining the operation of the test system 1D according to the fifth embodiment. In the flowchart shown in Fig. 10, step ST260 in the flowchart shown in Fig. 7 is replaced with steps ST265 and ST270, and the other steps are the same as those in the flowchart shown in Fig. 7. Here, steps ST265 and ST270 will be explained.

[0092] If it is determined based on the first detection information that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur has occurred (Yes in ST230), the control device 3 determines whether the tester 200 is in a state of tension based on the tension state information acquired by the tension state detector 5C (ST265), and determines whether the tester 200 is looking at the test monitoring information on the display device 7 based on the gaze information acquired by the gaze detector 5B (ST270). For example, the control device 3 obtains the average value of the amount of time that the tester 200 looks at the test monitoring information on the display device 7 within a predetermined time based on the gaze information acquired by the gaze detector 5B, and if the average value is smaller than a predetermined threshold, determines that the tester 200 is not looking at the test monitoring information on the display device 7. If the control device 3 determines that the tester 200 is in a state of tension based on the tension state information (Yes in ST265) and determines that the tester 200 is not looking at the test monitoring information on the display device 7 based on the gaze information (No in ST270), the control device 3 determines that the tester 200 is not able to perform the abnormality monitoring work, and executes the processing of steps ST280 and ST290 described above.

[0093] According to this embodiment, if the tester 200 is in a state of tension and is not looking at the test monitoring information on the display device 7, it is predicted that the tester 200 is under strong psychological stress due to the abnormal state indicated by the test monitoring information on the display device 7 and is unable to calmly monitor the test monitoring information, and therefore it is determined that the tester 200 is not able to perform abnormality monitoring. Therefore, by simple processing based on the tension state information from the tension state detector 5C and the gaze information from the gaze detector 5B, it can be effectively determined whether the tester 200 is able to perform the abnormality monitoring task.

[0094] Sixth Embodiment Next, a sixth embodiment of the present invention will be described. Fig. 11 is a flowchart for explaining the operation of a test system according to the sixth embodiment. The test system according to the sixth embodiment has a configuration similar to that of the test system 1D shown in Fig. 9, but the operation of the control device 3 differs from that of the flowchart shown in Fig. 10 described above. The flowchart shown in Fig. 11 is obtained by adding steps ST275 and ST285 to the flowchart shown in Fig. 10, and the other steps are the same as those of the flowchart shown in Fig. 10. Here, the parts that differ from the flowchart shown in Fig. 10 (ST275, ST285) will be explained.

[0095] If it is determined based on the first detection information that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur has occurred (Yes in ST230), the control device 3 determines whether the tester 200 is in a state of tension based on the tension state information acquired by the tension state detector 5C (ST265), and determines whether the tester 200 is looking at the test monitoring information on the display device 7 based on the gaze information acquired by the gaze detector 5B (ST270, ST275). If it is determined based on the tension state information that the tester 200 is not in a state of tension (No in ST265) and based on the gaze information that the tester 200 is not looking at the test monitoring information on the display device 7 (No in ST275), the control device 3 determines that the tester 200 is paying less attention to the abnormality monitoring work. In this case, the control device 3 controls the alarm device 8 to issue an alarm to attract the attention of the tester 200, and executes the processing of step ST290 (predetermined processing according to the abnormal state).

[0096] According to this embodiment, if it is determined based on the tension state information that the tester 200 is not in a tension state, and it is determined based on the line of sight information that the tester 200 is not looking at the test monitoring information on the display device 7, it is determined that the tester 200 is paying less attention to the abnormality monitoring work. In this case, by calling the attention of the tester 200 through the alarm operation of the alarm device 8, it is possible to easily avoid a situation in which the tester 200 is unable to accurately determine an abnormality due to a decrease in the tester's attention.

[0097] In addition, when the alarm device 8 performs an alarm operation in step ST290 as well, the control device 3 may control the alarm device 8 to perform an alarm operation with a stronger level of attention-grabbing (for example, an alarm operation with increased intensity of sound, light, or vibration) in step ST285 compared to step ST290.

[0098] In step ST290, in addition to the notification operation by the notification device 8, a notification operation may be performed by the display device 7. For example, the control device 3 may display a message or a graphic on the display device 7 to draw attention to an abnormality in the test object 100. This makes it easier for the tester 200 to pay attention to the display device 7.

[0099] Seventh Embodiment Next, a seventh embodiment of the present invention will be described. Fig. 12 is a flowchart for explaining the operation of a test system according to the seventh embodiment. The test system according to the seventh embodiment has a configuration similar to that of test system 1D shown in Fig. 9, but the operation of the control device 3 differs from that of the flowcharts shown in Figs. 10 and 11 described above. The flowchart shown in Fig. 12 has steps ST210, ST215, ST235, and ST250 instead of steps ST230, ST265, ST270, and ST280 in the flowchart shown in Fig. 10, but the other steps are the same as those in the flowchart shown in Fig. 10. Here, steps ST210, ST215, ST235, and ST250 that are different from those in the flowchart shown in Fig. 10 will be described.

[0100] While the test is being conducted, the control device 3 determines whether the tester 200 is in a state of tension based on the tension state information acquired by the tension state detector 5C (ST210), and also determines whether the tester 200 is looking at the test monitoring information on the display device 7 based on the gaze information acquired by the gaze detector 5B (ST215).

[0101] If it is determined based on the tension state information that the tester 200 is not in a tension state (No in ST210), or if it is determined based on the line-of-sight information that the tester 200 is not looking at the test monitoring information on the display device 7 (No in ST215), the control device 3 proceeds to step ST250. In step ST250, the control device 3 determines whether an abnormality has occurred in the test object 100 or whether a state in which an abnormality may occur has been reached, based on the first detection information acquired by the first detector 4 during the test (ST250). If it is determined that an abnormality has occurred in the test object 100 or whether a state in which an abnormality may occur has been reached (Yes in ST250), the control device 3 proceeds to step ST290 and executes a predetermined process according to the abnormal state.

[0102] On the other hand, if the control device 3 determines that the tester 200 is in a tense state based on the tension state information (Yes in ST210) and determines that the tester 200 is looking at the test monitoring information on the display device 7 based on the line-of-sight information (Yes in ST215), the control device 3 determines that the tester 200 is paying increased attention to the abnormality monitoring work. In this case, the control device 3 sets a stricter standard for determining that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur has been reached based on the first detection information than the standard for determining that increased attention to the abnormality monitoring work has been reached (ST250), and performs an abnormality state determination (ST235). If the control device 3 determines that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur has been reached based on this stricter standard (Yes in ST235), the control device 3 proceeds to step ST290 and executes a predetermined process according to the abnormality state.

[0103] According to this embodiment, if it is determined that the tester 200 is in a tense state based on the tension state information and if it is determined that the tester 200 is looking at the test monitoring information on the display device 7 based on the line of sight information, it is determined that the tester 200 is paying close attention to the abnormality monitoring work. In this case, the standard for determining that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur is set to a stricter standard than when it is not determined that the tester 200 is paying close attention to the abnormality monitoring work. This makes it possible to conduct testing up to a range close to the boundary between the actual normal state and the abnormal state, making it easier to obtain useful test data.

[0104] Eighth Embodiment Next, an eighth embodiment of the present invention will be described. 13 and 14 are flowcharts for explaining the operation of a test system according to the eighth embodiment. The test system according to the eighth embodiment has a configuration similar to that of the test system 1D shown in FIG. 9, but the operation of the control device 3 differs from that of the flowcharts shown in FIGS. 10 to 12 described above. The flowcharts shown in FIGS. 13 and 14 are obtained by adding steps ST220, ST240, ST245, ST280, and ST285 to the flowchart shown in FIG. 12, and the other steps are the same as those in the flowchart shown in FIG. 12. Steps ST280 and ST285 are the same as the steps with the same reference numerals in the flowchart shown in FIG. 11. Here, the differences from the flowcharts shown in FIGS. 11 and 12 will be mainly described.

[0105] While the test is being conducted, the control device 3 determines whether the tester 200 is in a state of tension based on tension state information acquired by the tension state detector 5C (ST210), and determines whether the tester 200 is looking at the test monitoring information on the display device 7 based on gaze information acquired by the gaze detector 5B (ST215, ST220).

[0106] If the control device 3 determines that the tester 200 is in a tense state based on the tension state information (Yes in ST210) and determines that the tester 200 is looking at the test monitoring information on the display device 7 based on the line-of-sight information (Yes in ST215), the control device 3 determines that the tester 200 is paying increased attention to the abnormality monitoring work. In this case, the control device 3 sets a stricter standard for determining that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur has been reached based on the first detection information than the determination standard (ST240, ST245, ST250) used when it is not determined that increased attention to the abnormality monitoring work is being reached, and performs an abnormality state determination (ST235). If the control device 3 determines that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur has been reached based on this stricter determination standard (Yes in ST235), the control device 3 proceeds to step ST290 and executes a predetermined process according to the abnormality state.

[0107] If the control device 3 determines that the tester 200 is in a tense state based on the tension state information (Yes in ST210) and determines that the tester 200 is not looking at the test monitoring information on the display device 7 based on the line-of-sight information (No in ST215), the control device 3 determines that the tester 200 is unable to perform the abnormality monitoring work. In this case, the control device 3 determines that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur has occurred based on the first detection information using normal judgment criteria that are different from the strict judgment criteria of step ST235 (ST240). If the control device 3 determines that the test object 100 is in an abnormal state based on the normal judgment criteria (Yes in ST240), the control device 3 transmits a support request (e.g., email) to a predetermined request recipient via the communication device 9, requesting support for the abnormality monitoring work for the test object 100 (ST280). In this case, the control device 3 also executes a predetermined process according to the abnormal state (ST290).

[0108] If the control device 3 determines that the tester 200 is not in a state of tension based on the tension state information (No in ST210) and determines that the tester 200 is not looking at the test monitoring information on the display device 7 based on the line-of-sight information (No in ST220), the control device 3 determines that the tester 200 is paying less attention to the abnormality monitoring work. In this case, the control device 3 determines, based on the normal determination criteria, that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur has occurred, based on the first detection information (ST245). If the control device 3 determines, based on the normal determination criteria, that the test object 100 is in an abnormal state (Yes in ST245), the control device 3 controls the alarm device 8 to issue an alarm to attract the attention of the tester 200 (ST285). In this case, the control device 3 also executes a predetermined process according to the abnormal state (ST290).

[0109] If the control device 3 determines that the tester 200 is not in a tense state based on the tension state information (No in ST210) and determines that the tester 200 is looking at the test monitoring information on the display device 7 based on the line of sight information (Yes in ST220), the control device 3 determines, based on the normal criteria, that an abnormality has occurred in the test object 100 or that a state in which an abnormality may occur has occurred based on the first detection information (ST250).If the control device 3 determines that the test object 100 is in an abnormal state based on the normal criteria (Yes in ST250), the control device 3 executes a predetermined process according to the abnormal state (ST290).

[0110] According to this embodiment, when the tester 200 is paying close attention to the abnormality monitoring task (when the tester 200 is in a tense state and is looking at the display device 7), the abnormal state of the test object 100 is determined based on the first detection information using stricter determination criteria than usual. Therefore, similar to the seventh embodiment, it is possible to perform testing up to a range close to the boundary between the actual normal state and the abnormal state, making it easier to obtain useful test data.

[0111] Furthermore, according to this embodiment, when it is determined that the test object 100 is in an abnormal state based on the first detection information, and the tester 200 is unable to carry out the abnormality monitoring work (the tester 200 is in a tense state and is not looking at the display device 7), a support request (such as an email) is sent to a predetermined request receiving destination, requesting support for the tester 200 in the abnormality monitoring work. This allows the tester 200 to receive support, similar to the fourth to sixth embodiments (FIGS. 6 to 11), making it easier to avoid a situation where an abnormality in the test object 100 cannot be accurately determined due to the state of the tester 200.

[0112] Furthermore, according to this embodiment, when it is determined that the test object 100 is in an abnormal state based on the first detection information, if the tester 200 is not paying as much attention to the abnormality monitoring task (the tester 200 is not in a tense state and is not looking at the display device 7), the tester 200's attention is called by the alarm operation of the alarm device 8. This makes it easier to avoid a situation in which the tester 200 is unable to accurately determine an abnormality due to a decrease in the tester 200's attention, as in the sixth embodiment (FIG. 11).

[0113] The present invention is not limited to the above-described embodiment, but includes various variations.

[0114] A part of the processing of the control device 3 in each of the above-described embodiments may be combined with the processing of the control device 3 in other embodiments. Also, a part of the configuration of the test system (1, 1A to 1D) in each of the above-described embodiments may be combined with the configuration of another test system.

[0115] Below, supplementary notes related to this embodiment will be described.

[0116] [Appendix 1] one or more test condition setting devices for setting test conditions for testing the test object; a control device for controlling the test condition setting device; one or more first detectors for obtaining first detected information relating to a condition of the test object; one or more second detectors for obtaining second detection information relating to the status of test personnel involved in the test; The tester may operate at least one of the test object, the test condition setting device, and the control device during the test; the control device determines an abnormal state of the test object based on the first detection information and the second detection information. Test system. [Appendix 2] an operation status detector that is the second detector for acquiring operation status information indicating an operation status of at least one of the test object, the test condition setting device, and the control device by the tester; when the control device acquires the operation status information indicating that no operation has been performed by the tester, the control device determines an abnormal state of the test object based on the first detection information. 1. A test system as described in Appendix 1. [Appendix 3] the test object is a vehicle; the tester is capable of operating an acceleration operating device for accelerating the vehicle during testing of the vehicle; a vehicle load setting device that is the test condition setting device and that can set a load applied to an axle of the vehicle in a running state; a vehicle operation setting device that is the test condition setting device and that can set the operation amount of the acceleration operating device; a displacement amount detector that is the first detector and that acquires displacement amount information relating to a displacement amount of the vehicle in a direction perpendicular to a predetermined traveling direction of the vehicle, When the operation state information indicating that the acceleration operating device of the test object has not been operated by the tester is acquired, the control device determines the meandering state of the vehicle based on the displacement amount indicated by the displacement amount information. 1. A test system as described in Appendix 2. [Appendix 4] a first rotational speed detector, the first detector acquiring first rotational speed information relating to a rotational speed of the axle of the vehicle; an operation amount detector that is the first detector for acquiring operation amount information related to the operation amount of the acceleration operation device set by the vehicle operation setting device; When the operation state information indicating that the acceleration operating device of the test object has not been operated by the tester is acquired, the control device acquires an upper limit value of the displacement amount based on the first rotation speed information and the operation amount information, and determines the meandering state of the vehicle based on the acquired upper limit value and the displacement amount indicated by the displacement amount information. 1. A test system as described in Appendix 3. [Appendix 5] When the control device determines that the vehicle is in the meandering state, the control device changes the operation amount of the acceleration operation device set by the vehicle operation setting device so that the acceleration of the vehicle decreases, and decreases the load set by the vehicle load setting device. 1. A test system as described in Appendix 4. [Appendix 6] an operation status detector that is the second detector for acquiring operation status information indicating an operation status of at least one of the test object, the test condition setting device, and the control device by the tester; The control device When the operation status information indicating that no operation has been performed by the tester is acquired, an abnormal state of the test object is determined based on the first detection information and a first determination criterion; When the operation status information indicating that an operation is being performed by the tester is acquired, an abnormal state of the test object is determined based on the first detection information using a second determination criterion different from the first determination criterion. 1. A test system as described in Appendix 1. [Appendix 7] one or more test condition setting devices for setting test conditions for testing the test object; a control device for controlling the test condition setting device; one or more first detectors for obtaining first detected information relating to a condition of the test object; a display device that displays test monitoring information corresponding to the first detection information acquired during the execution of the test; one or more second detectors for obtaining second detection information relating to the status of test personnel involved in the test; During the test, the tester monitors the test object for abnormalities based on the test monitoring information displayed on the display device, The control device determining whether or not the tester can monitor the abnormality of the test object based on the second detection information; If it is determined based on the first detection information that the abnormality has occurred in the test object or that the test object is in a state where the abnormality may occur, and if it is determined that monitoring of the abnormality is not possible, a support request is sent to a predetermined request receiving destination to request support for the abnormality monitoring work of the tester. Test system. [Appendix 8] a tension state detector that is the second detector and acquires tension state information relating to the tension state of the tester; a gaze detector that is the second detector for acquiring gaze information regarding the gaze of the tester, When the control device determines that the tester is in a state of tension based on the tension state information and determines that the tester is not looking at the test monitoring information on the display device based on the line of sight information, it determines that the tester is unable to monitor the abnormality. 10. A test system as described in Appendix 7. [Appendix 9] an alarm device that issues an alarm to attract the attention of the person in charge of testing; The control device If it is determined based on the tension state information that the tester is not in a tension state and based on the line of sight information that the tester is not looking at the test monitoring information on the display device, it is determined that the tester is paying less attention to the abnormality monitoring work, When it is determined based on the first detection information that the abnormality has occurred in the test object or that the test object is in a state where the abnormality may occur, and when it is determined that attention to the abnormality monitoring work is decreasing, the alarm device is controlled to issue an alarm to call the attention of the tester. 10. A test system as described in Appendix 8. [Appendix 10] one or more test condition setting devices for setting test conditions for testing the test object; a control device for controlling the test condition setting device; one or more first detectors for obtaining first detected information relating to a condition of the test object; a display device that displays test monitoring information corresponding to the first detection information acquired during the execution of the test; an alarm device that issues an alarm to attract the attention of a tester; a plurality of second detectors for acquiring second detection information relating to the state of the test personnel involved in the test; The plurality of second detectors include: a tension detector that acquires tension state information regarding the tension state of the test personnel involved in the test; a gaze detector for acquiring gaze information regarding the gaze of the tester; During the test, the tester monitors the test object for abnormalities based on the test monitoring information displayed on the display device, The control device If it is determined based on the tension state information that the tester is not in a tension state and based on the line of sight information that the tester is not looking at the test monitoring information on the display device, it is determined that the tester is paying less attention to the abnormality monitoring work, When it is determined based on the first detection information that the abnormality has occurred in the test object or that the test object is in a state where the abnormality may occur, and when it is determined that attention to the abnormality monitoring work is decreasing, the alarm device is controlled to issue an alarm to call the attention of the tester. Test system. [Appendix 11] The display device operates as the notification device that displays a message to attract the attention of the person in charge of testing. 11. The test system of claim 9 or 10. [Appendix 12] The control device If it is determined that the tester is in a state of tension based on the tension state information and that the tester is looking at the test monitoring information on the display device based on the line of sight information, it is determined that the tester is paying increased attention to the abnormality monitoring work, When it is determined that attention to the abnormality monitoring work is increasing, the conditions for determining that the abnormality in the test object has occurred or that the abnormality may occur based on the first detection information are set to stricter conditions than when it is not determined that attention to the abnormality monitoring work is increasing. A test system according to any one of Supplementary Notes 8 to 11. [Appendix 13] one or more test condition setting devices for setting test conditions for testing the test object; a control device for controlling the test condition setting device; one or more first detectors for obtaining first detected information relating to a condition of the test object; a display device that displays test monitoring information corresponding to the first detection information acquired during the execution of the test; a plurality of second detectors for acquiring second detection information relating to the status of test personnel involved in the test; The plurality of second detectors include: a tension detector that acquires tension state information regarding the tension state of the test personnel involved in the test; a gaze detector for acquiring gaze information regarding the gaze of the tester; the tester monitors the test object for abnormalities based on the first detection information displayed on the display device during the test; The control device If it is determined that the tester is in a state of tension based on the tension state information and that the tester is looking at the test monitoring information on the display device based on the line of sight information, it is determined that the tester is paying increased attention to the abnormality monitoring work, When it is determined that attention to the abnormality monitoring work is increasing, a stricter standard is set for determining that the abnormality in the test object has occurred or that the test object is in a state where the abnormality may occur based on the first detection information than when it is not determined that attention to the abnormality monitoring work is increasing. Test system. [Appendix 14] the test object is an engine; an engine load setting device that is the test condition setting device and is capable of setting a load applied to the output of the engine; At least one of a second rotational speed detector, which is the first detector, that acquires second rotational speed information related to the rotational speed of the engine, and a torque detector, which is the first detector, that acquires torque information related to the torque of the engine; a display device that displays test monitoring information corresponding to at least one of the second rotational speed information and the torque information acquired during the test, the tester monitors the engine for abnormalities based on the test monitoring information displayed on the display device during the engine test. A test system according to any one of Supplementary Notes 1 to 2 and Supplementary Notes 6 to 13. [Appendix 15] one or more test condition setting devices for setting test conditions for testing the test object; one or more first detectors for obtaining first detected information relating to a condition of the test object; one or more second detectors for obtaining second detected information relating to the status of test personnel involved in the test; Computer and A test method executed by the computer in a test system having the following: The tester may operate at least one of the test object, the test condition setting device, and the control device during the test; The computer determines an abnormal state of the test object based on the first detection information and the second detection information. Test method. [Appendix 16] the test system includes an operation status detector, which is the second detector, that acquires operation status information indicating an operation status of at least one of the test object, the test condition setting device, and the control device by the tester; the step of determining the abnormal state of the test object includes, when the operation state information indicating that no operation has been performed by the tester is acquired, determining the abnormal state of the test object based on the first detection information. Test method described in Appendix 15. [Appendix 17] the test system includes an operation status detector, which is the second detector, that acquires operation status information indicating an operation status of at least one of the test object, the test condition setting device, and the control device by the tester; The step of determining an abnormal state of the test object includes: When the operation status information indicating that no operation has been performed by the tester is acquired, determining an abnormal state of the test object based on the first detection information and a first determination criterion; and when the operation status information indicating that an operation is being performed by the tester is acquired, determining an abnormal state of the test object based on the first detection information using a second determination criterion different from the first determination criterion. Test method described in Appendix 15. [Appendix 18] one or more test condition setting devices for setting test conditions for testing the test object; one or more first detectors for obtaining first detected information relating to a condition of the test object; a display device that displays test monitoring information corresponding to the first detection information acquired during the execution of the test; one or more second detectors for obtaining second detected information relating to the status of test personnel involved in the test; Computer and A test method executed by the computer in a test system having the following: During the test, the tester monitors the test object for abnormalities based on the test monitoring information displayed on the display device, a step of determining by the computer whether the abnormality has occurred in the test object or whether the test object is in a state where the abnormality may occur, based on the first detection information; a step of determining by the computer whether or not the tester can monitor the abnormality of the test object based on the second detection information; and if the computer determines based on the first detection information that the abnormality has occurred in the test object or that the test object is in a state where the abnormality may occur, and determines that monitoring of the abnormality is not possible, transmitting a support request to a predetermined request receiving destination to request support for the abnormality monitoring work of the tester. Test method. [Appendix 19] one or more test condition setting devices for setting test conditions for testing the test object; one or more first detectors for obtaining first detected information relating to a condition of the test object; a display device that displays test monitoring information corresponding to the first detection information acquired during the execution of the test; an alarm device that issues an alarm to attract the attention of a tester; a plurality of second detectors for acquiring second detection information relating to the status of the test personnel involved in the test; Computer and A test method executed by the computer in a test system having the following: The plurality of second detectors include: a tension detector that acquires tension state information regarding the tension state of the test personnel involved in the test; a gaze detector for acquiring gaze information regarding the gaze of the tester; During the test, the tester monitors the test object for abnormalities based on the test monitoring information displayed on the display device, a step of determining by the computer whether the abnormality in the test object has occurred or whether the test object has entered a state in which the abnormality may occur, based on the first detection information; a step of determining that the tester's attention to the abnormality monitoring work has decreased when the computer determines that the tester is not in a state of tension based on the tension state information and that the tester is not looking at the test monitoring information on the display device based on the line of sight information; and when the computer determines based on the first detection information that the abnormality has occurred in the test object or that the abnormality may occur, and determines that attention to the abnormality monitoring work is declining, controlling the notification device to issue a notification to draw the attention of the person in charge of testing. Test method. [Appendix 20] one or more test condition setting devices for setting test conditions for testing the test object; one or more first detectors for obtaining first detected information relating to a condition of the test object; a display device that displays test monitoring information corresponding to the first detection information acquired during the execution of the test; a plurality of second detectors for acquiring second detection information relating to the status of test personnel involved in the test; Computer and A test method executed by the computer in a test system having the following: The plurality of second detectors include: a tension detector that acquires tension state information regarding the tension state of the test personnel involved in the test; a gaze detector for acquiring gaze information regarding the gaze of the tester; the tester monitors the test object for abnormalities based on the first detection information displayed on the display device during the test; a step of determining that the testing personnel is paying increased attention to the abnormality monitoring work when the computer determines that the testing personnel is in a state of tension based on the tension state information and determines that the testing personnel is looking at the test monitoring information on the display device based on the line of sight information; and a step of determining, by the computer, whether the abnormality has occurred in the test object or whether the test object has entered a state in which the abnormality may occur, based on the first detection information; The step of determining the abnormality in the test object includes, when it is determined that the tester is paying more attention to the abnormality monitoring work, setting a stricter standard for determining that the abnormality in the test object has occurred or that the abnormality may occur based on the first detection information than when it is determined that the tester is not paying more attention to the abnormality monitoring work. Test method. [Appendix 21] A program for causing a computer to execute the test method according to any one of Supplementary Notes 15 to 20. [Explanation of symbols]

[0117] REFERENCE SIGNS LIST 1, 1A to 1D... test system, 2... test condition setting device, 2A... vehicle load setting device, 2B... vehicle operation setting device, 2C... engine load setting device, 3... control device, 4... first detector, 4A... first rotation speed detector, 4B... operation amount detector, 4C... displacement amount detector, 4D... second rotation speed detector, 4E... torque detector, 5... second detector, 5A... operation state detector, 5B... line of sight detector, 5C... tension state detector, 6... operation device, 7... display device, 8... alarm device, 9... communication device, 100... test object, 101... acceleration operation device, 200... tester

Claims

1. one or more test condition setting devices for setting test conditions for testing the test object; a control device for controlling the test condition setting device; one or more first detectors for obtaining first detected information relating to a condition of the test object; one or more second detectors for obtaining second detection information relating to the status of test personnel involved in the test; The tester may operate at least one of the test object, the test condition setting device, and the control device during the test; The control device determines an abnormal state of the test object based on the first detection information and the second detection information, When the second detection information indicating that the tester has not performed the specific operation is acquired by the second detector and the specific first detection information satisfies a first abnormality determination criterion, determining that the test object is in a first abnormal state; When the second detection information indicating that the tester is performing the specific operation is acquired by the second detector and the specific first detection information satisfies a second abnormality determination criterion, the test object is determined to be in a second abnormal state. Do at least one of the following: Test system.

2. The control device determines that the test object is in an abnormal state when the second detection information indicating that the tester is in a predetermined mental state is acquired by the second detector and the specific second detection information satisfies an abnormality determination criterion for the predetermined mental state. The test system of claim 1 .

3. one or more test condition setting devices for setting test conditions for testing the test object; a control device for controlling the test condition setting device; one or more first detectors for obtaining first detected information relating to a condition of the test object; one or more second detectors for obtaining second detection information relating to the status of test personnel involved in the test; The tester may operate at least one of the test object, the test condition setting device, and the control device during the test; the control device determines an abnormal state of the test object based on the first detection information and the second detection information; an operation state detector that is the second detector for acquiring operation state information indicating an operation state of at least one of the test object, the test condition setting device, and the control device by the tester; When the control device acquires the operation status information indicating that no operation has been performed by the tester and that the operation by the tester will not affect the first detection information, the control device determines the abnormal state of the test object based on the first detection information. Test system.

4. the test object is a vehicle; the tester is capable of operating an acceleration operating device for accelerating the vehicle during testing of the vehicle; a vehicle load setting device that is the test condition setting device and that can set a load applied to an axle of the vehicle in a running state; a vehicle operation setting device that is the test condition setting device and that can set the operation amount of the acceleration operating device; a displacement amount detector that is the first detector and that acquires displacement amount information relating to a displacement amount of the vehicle in a direction perpendicular to a predetermined traveling direction of the vehicle, When the operation state information indicating that the acceleration operating device of the test object has not been operated by the tester is acquired, the control device determines the meandering state of the vehicle based on the displacement amount indicated by the displacement amount information. The test system of claim 3 .

5. a first rotational speed detector configured to acquire first rotational speed information relating to a rotational speed of the axle of the vehicle; an operation amount detector that is the first detector for acquiring operation amount information related to the operation amount of the acceleration operation device set by the vehicle operation setting device, When the control device acquires the operation state information indicating that the acceleration operating device of the test object has not been operated by the tester, the control device acquires an upper limit value of the displacement amount based on the first rotation speed information and the operation amount information, and determines the meandering state of the vehicle based on the acquired upper limit value and the displacement amount indicated by the displacement amount information. The test system of claim 4 .

6. When the control device determines that the vehicle is in the meandering state, the control device changes the operation amount of the acceleration operation device set by the vehicle operation setting device so that the acceleration of the vehicle decreases, and reduces the load set by the vehicle load setting device. The test system of claim 5 .

7. one or more test condition setting devices for setting test conditions for testing the test object; a control device for controlling the test condition setting device; one or more first detectors for obtaining first detected information relating to a condition of the test object; one or more second detectors for obtaining second detection information relating to the status of test personnel involved in the test; The tester may operate at least one of the test object, the test condition setting device, and the control device during the test; the control device determines an abnormal state of the test object based on the first detection information and the second detection information; an operation state detector that is the second detector for acquiring operation state information indicating an operation state of at least one of the test object, the test condition setting device, and the control device by the tester; The control device When the operation status information indicating that no operation has been performed by the tester is acquired, an abnormal state of the test object is determined based on the first detection information and a first determination criterion; When the operation status information indicating that an operation is being performed by the tester is acquired, an abnormal state of the test object is determined based on the first detection information using a second determination criterion different from the first determination criterion. Test system.

8. the test object is an engine; an engine load setting device that is the test condition setting device and is capable of setting a load applied to the output of the engine; at least one of a second rotational speed detector, which is the first detector, that acquires second rotational speed information related to the rotational speed of the engine, and a torque detector, which is the first detector, that acquires torque information related to the torque of the engine; a display device that displays test monitoring information corresponding to at least one of the second rotational speed information and the torque information acquired during the test, the tester monitors the engine for abnormalities based on the test monitoring information displayed on the display device during the engine test. The test system according to any one of claims 1 to 3 and claim 7.

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