Function test system, function test method, and diagnostic device

Abstract

The invention discloses a function test system, a function test method and a diagnosis device, and the system comprises a current clamp device which comprises a current clamp which is used for being connected with a storage battery and a to-be-tested electric appliance on a truck when the function test is carried out on the truck; the measuring module is connected with the current clamp, and the measuring module is used for detecting the working current of the to-be-detected electric appliance after the to-be-detected electric appliance is started; the communication module is electrically connected with the measurement module; and the diagnosis equipment is electrically connected with the truck, the diagnosis equipment is in communication connection with the communication module, and the diagnosis equipment is used for working according to the work provided by the communication module. Through the function test system, all electric appliances needing to be tested on the truck can be automatically detected, manpower and time can be saved, the detection reliability can be ensured, and the safety of the truck is improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a function testing system, a function testing method and a diagnostic device. Background Art

[0002] There are many electrical appliances on trucks with various functions, which are very important for ensuring driving safety. Therefore, when the truck is on the production line, the electrical appliances on the truck must be tested. Due to the large number of electrical appliances, manual testing of the electrical appliances one by one is inefficient, wastes manpower and time, and the manually recorded data when the operator performs the test is not accurate enough, making it difficult to ensure the reliability of the test. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a functional test system, through which all electrical appliances that need to be tested on a truck can be automatically tested, which can not only save manpower and time, but also ensure the reliability of the test and improve the safety of the truck.

[0004] A second objective of the present invention is to provide a functional testing method.

[0005] A third object of the present invention is to provide a diagnostic device.

[0006] In order to solve the above problems, a first aspect of the present invention provides a functional testing system, including: a current clamp device, the current clamp device including: a current clamp, the current clamp is used to connect to the electrical appliance to be tested on the truck when performing a functional test on the truck; a measuring module, the measuring module is connected to the current clamp, the measuring module is used to detect the working current of the electrical appliance to be tested after the electrical appliance to be tested is started; a communication module, the communication module is electrically connected to the measuring module; a diagnostic device, the diagnostic device is electrically connected to the truck, and the diagnostic device is communicatively connected to the communication module, the diagnostic device is used to identify the functional state of the electrical appliance to be tested according to the working current provided by the communication module.

[0007] According to the functional testing system of the embodiment of the present invention, after the current clamp is connected to the electrical appliance to be tested on the truck, the electrical appliance to be tested is started, and the truck battery supplies power to the electrical appliance to be tested, so that the measuring module can detect the working current of the electrical appliance to be tested, and send the working current to the diagnostic equipment through the communication module, and the diagnostic equipment identifies the functional status of the electrical appliance to be tested according to the working current, thereby realizing the detection of all electrical appliances that need to be tested in the truck, and the whole process can automatically identify the functional status of the electrical appliance to be tested, thereby realizing automated detection, which can not only save manpower and time, but also ensure the reliability of detection and improve the safety of the truck.

[0008] In some embodiments, the current clamp device further includes: a power supply module, wherein the power supply module is used to supply power to the current clamp device.

[0009] In some embodiments, the diagnostic device is also used to display the functional status of the electrical appliance to be tested.

[0010] In some embodiments, it also includes: a printing device, which is communicatively connected to the diagnostic device, and is used to print the functional status of the electrical appliance to be tested.

[0011] A second aspect of the present invention provides a functional testing method for a diagnostic device in the functional testing system of the above-mentioned embodiment, the method comprising sending connection prompt information about a current clamp device under the condition that the diagnostic device is electrically connected to a truck; after determining that the current clamp device meets the test conditions, controlling the truck to power on and controlling the electrical appliance to be tested to start; obtaining the working current of the electrical appliance to be tested; and identifying the functional status of the electrical appliance to be tested based on the working current.

[0012] According to the functional testing method of the embodiment of the present invention, after the diagnostic equipment is electrically connected to the truck and it is determined that the current clamp equipment meets the test conditions, the truck can be powered on and the electrical appliances to be tested can be started, and the truck battery supplies power to the electrical appliances to be tested, so that the functional status of the electrical appliances to be tested can be identified according to the working current, thereby realizing the detection of all electrical appliances that need to be tested in the truck, and the whole process can automatically identify the functional status of the electrical appliances to be tested, realizing automated detection, which can not only save manpower and time, but also ensure the reliability of detection, and improve the safety of the truck.

[0013] In some embodiments, the test conditions include that the current clamp device, the battery on the truck, and the electrical appliance to be tested are all connected and the current clamp device has been zeroed.

[0014] In some embodiments, the electrical appliance to be tested is a generator, and the functional state of the electrical appliance to be tested is identified based on the working current, including: if the working current is within the standard working current range of the electrical appliance to be tested, then identifying the functional state of the electrical appliance to be tested as normal; if the working current is not within the standard working current range of the electrical appliance to be tested, then identifying the functional state of the electrical appliance to be tested as abnormal.

[0015] In some embodiments, the electrical appliance to be tested is a car light, the working current includes a first current after the car light is started and a second current after the car light is turned off, and the functional state of the electrical appliance to be tested is identified based on the working current, including: calculating the current difference between the first current and the second current; if the current difference is within the standard current difference range, determining that the functional state of the car light is normal; if the current difference is not within the standard current difference range, determining that the functional state of the car light is abnormal.

[0016] In some embodiments, it also includes: if the diagnostic device identifies the functional state as abnormal for a preset number of consecutive times, the identification operation will be stopped and the functional abnormality information will be sent.

[0017] The third aspect of the present invention provides a diagnostic device, comprising: at least one processor; a memory communicatively connected to at least one of the processors; wherein the memory stores a computer program executable by at least one of the processors, and when at least one of the processors executes the computer program, the functional testing method described in any one of claims 5 to 9 is implemented.

[0018] The diagnostic equipment according to the embodiment of the present invention adopts the above-mentioned functional testing method to automatically detect all electrical appliances on the truck, which can not only save manpower and time, but also ensure the reliability of the detection and improve the safety of the truck.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a structural block diagram of a functional testing system according to an embodiment of the present invention; Figure 2 is a schematic diagram of a truck light according to an embodiment of the present invention; Figure 3 is a flow chart of a functional testing method according to an embodiment of the present invention; Figure 4 is a block diagram of a diagnostic device according to an embodiment of the present invention; Figure 5 is a flow chart of a functional testing method according to another embodiment of the present invention; Figure 6 is a flow chart of a functional testing method according to another embodiment of the present invention.

[0021] Reference numerals: Functional testing system 100; Current clamp device 10; diagnostic device 20; printing device 30 Current clamp 1; measurement module 2; communication module 3; power supply module 4; first current clamp 5; second current clamp 6; housing 7; processor 8; memory 9. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0023] Reference below Figure 1 Describe the functional testing system 100 according to an embodiment of the present invention. Figure 1 is a structural block diagram of a functional test system according to an embodiment of the present invention, wherein Figure 1 As shown, the functional testing system 100 includes a current clamp device 10 and a diagnostic device 20 , wherein the current clamp device includes a current clamp 1 , a measuring module 2 and a communication module 3 .

[0024] Among them, the current clamp 1 is used to connect to the battery and the electrical appliances to be tested on the truck when performing functional testing on the truck; the measuring module 2 is connected to the current clamp 1, and the measuring module 2 is used to detect the working current of the electrical appliances to be tested after the electrical appliances to be tested are started; the communication module 3 is electrically connected to the measuring module 2; the diagnostic device 20 is electrically connected to the truck, and the diagnostic device 20 is communicatively connected to the communication module 3, and the diagnostic device 20 is used to identify the functional status of the electrical appliances to be tested according to the working current provided by the communication module 3.

[0025] Specifically, after the current clamp 1 of the present application is connected to the battery and the electrical appliances to be tested on the truck, the diagnostic module 20 sends a signal to control the start-up of the electrical appliances to be tested, and the battery supplies power to the electrical appliances to be tested, so that the working current of the electrical appliances to be tested is detected by the measuring module 2, and the working current is sent to the diagnostic device 20 through the communication module 3. The diagnostic device 20 performs detection, and the diagnostic device 20 identifies the functional state of the electrical appliances to be tested according to the working current, thereby realizing the detection of all electrical appliances that need to be detected in the truck, and the whole process can automatically identify the functional state of the electrical appliances to be tested, thereby realizing automated detection.

[0026] Among them, before the current clamp 1 is connected to the battery and the electrical appliances to be tested on the truck, the diagnostic module 20 is also required to send a signal to control the truck to power off to avoid danger when the current clamp 1 is connected, and the measurement module 2 is zeroed to ensure that the working current of the electrical appliances to be tested can be accurately measured. After the current clamp 1 is connected to the battery and the electrical appliances to be tested on the truck, the diagnostic module 20 sends a signal to control the truck to power on, so that the electrical appliances to be tested can be powered by the battery after they are started.

[0027] According to the functional testing system 100 of the embodiment of the present invention, after the current clamp 1 is connected to the battery and the electrical appliances to be tested on the truck, the electrical appliances to be tested are started, and the truck battery supplies power to the electrical appliances to be tested, so that the measuring module 2 can detect the working current of the electrical appliances to be tested, and send the working current to the diagnostic device 20 through the communication module 3, and the diagnostic device 20 identifies the functional state of the electrical appliances to be tested according to the working current, thereby realizing the detection of all the electrical appliances that need to be tested in the truck, and the whole process can automatically identify the functional state of the electrical appliances to be tested, thereby realizing automated detection, which can not only save manpower and time, but also ensure the reliability of detection and improve the safety of the truck.

[0028] In some embodiments, Figure 1 As shown, the current clamp device 10 further includes a power supply module 4 , and the power supply module 4 is used to supply power to the current clamp device 10 .

[0029] Specifically, when the current clamp device 10 has no external device to power it, the power supply module 4 is used to power the current clamp device 10, which can ensure that the current clamp device 10 can be used normally, and when the current clamp device 10 has an external device to power it, the power supply module 4 can be charged by the external device.

[0030] In some embodiments, the diagnostic device 20 is also used to display the functional status of the electrical appliance to be tested.

[0031] Specifically, the diagnostic device 20 displays the functional status of the electrical appliance to be tested, so that the tester can obtain the test status of the electrical appliance to be tested based on the displayed information. For example, if the functional status of the electrical appliance to be tested is abnormal, the tester can directly receive the abnormal functional status information of the electrical appliance to be tested.

[0032] In some embodiments, Figure 1 As shown, the functional testing system 100 further includes a printing device 30 , wherein the printing device 30 is communicatively connected with the diagnostic device 20 , and the printing device 30 is used to print the functional status of the electrical appliance to be tested.

[0033] Exemplarily, the communication module 3 can upload it to the factory IT (Information Technology) via WiFi (wireless fidelity), and the factory IT can sort out the functional status and working current of the electrical appliances to be tested. The factory IT is connected to the diagnostic device 20 via a network cable, and the diagnostic device 20 makes a judgment based on the functional status of the electrical appliances to be tested provided by the factory IT, and is connected to the printer network based on the diagnostic device 20, so that the diagnostic device 20 can send the functional status of the electrical appliances to be tested to the printer, and the printer prints it out. And, when the diagnostic module 20 determines that the functional status of the electrical appliances to be tested is abnormal, the error information is sent to the factory IT via WiFi, and the factory IT can also record the error report.

[0034] The specific structure of the current clamp device is described below, and the specific contents are as follows: The current clamp 1 includes a first current clamp 5 and a second current clamp 6 .

[0035] Among them, the first current clamp 5 is used to connect to the battery on the truck when performing a functional test on the truck; the second current clamp is used to clamp to the power supply line when performing a functional test on the truck, and the power supply line is a wiring harness connecting the battery and the electrical appliance to be tested on the truck; the measurement module 2 and the communication module 3 are both arranged in the shell 7, the measurement module 2 is connected to the first current clamp 5 and the second current clamp 6, the communication module 3 is electrically connected to the measurement module 2, the measurement module 2 is used to detect the working current of the electrical appliance to be tested and the output voltage of the battery after the electrical appliance to be tested is started, and the communication module 3 is used to send the working current and output voltage to an external device.

[0036] Specifically, when performing a functional test on a truck, the first current clamp 5 of the present application is connected to the battery on the truck, and the second current clamp 6 is connected to the electrical appliance to be tested on the truck, so that the measuring module 2 can detect the output voltage of the battery through the first current clamp 5, detect the working current of the electrical appliance to be tested through the second current clamp 6, and send the output voltage and working current to the communication module 3, and the communication module 3 sends the output voltage and working current to an external device such as a diagnostic device for the vehicle, so that the output voltage and working current can be analyzed and processed by the external device to complete the functional test of the truck and realize the detection of all electrical appliances that need to be tested on the truck. It should be noted that the whole process can be automatically performed after the first current clamp is connected to the battery on the truck and the second current clamp is connected to the electrical appliance to be tested on the truck.

[0037] Exemplarily, the first current clamp 5 includes a first current clamp positive electrode and a first current clamp negative electrode, wherein the first current clamp positive electrode is used to connect to the positive terminal + of the battery on the truck, and the first current clamp negative electrode is used to connect to the negative terminal - of the battery on the truck, thereby completing the detection of the battery output voltage by the first current clamp 5; the battery on the truck is connected to the electrical appliance through the power supply harness to power the electrical appliance, specifically, one end of the electrical appliance is connected to the positive terminal + of the battery through the positive power supply harness, and the other end of the electrical appliance is connected to the negative terminal - of the battery through the negative power supply harness, based on this, when detecting the electrical appliance, the ring structure design of the second current clamp 6 can be clamped on the negative power supply harness, and the measurement of the working current of the electrical appliance to be tested is completed through electromagnetic induction, wherein the ring structure is used to stably clamp the power supply harness, which can reduce the movement of the power supply harness during the acquisition process, ensuring the accuracy and stability of the current measurement, and at the same time, the design of the ring structure makes the installation and disassembly of the power supply harness simple and quick, and the ring structure can also play a certain protective role while clamping the power supply harness, preventing the power supply harness from being damaged during the acquisition process.

[0038] According to the current clamp device 10 of the embodiment of the present invention, after the first current clamp 5 is connected to the battery on the truck and the second current clamp 6 is connected to the electrical appliance to be tested on the truck, the current clamp device 10 cooperates with the external device to automatically detect the output voltage of the battery and the working current of the electrical appliance to be tested and send them to the communication module, and the communication module 3 sends the output voltage and the working current to the external device, so that the output voltage and the working current can be analyzed and processed by the external device to complete the functional test of the truck and realize the detection of all electrical appliances that need to be detected in the truck, which can save manpower and time, and can also ensure the reliability of the detection, improve the quality of the truck, and avoid safety accidents.

[0039] In some embodiments, the electronic device 40 further includes a display screen, which is disposed on the housing.

[0040] Specifically, the measuring module 2 can display the output voltage or the working current on the display screen after detecting the output voltage of the battery through the first current clamp 5 or detecting the working current of the electrical appliance to be tested through the second current clamp 6. The startup information of the current clamp device can also be obtained through the display screen. For example, if the display screen is a double-line LCD screen and the double-line LCD screen displays a value when starting the current clamp device, it means that the startup of the current clamp device is complete.

[0041] The configuration settings of the measurement module 2 may also be displayed on a display screen, for example, an IP address, a MAC address, etc. may be displayed on a display screen, and no specific limitation is made here.

[0042] In some embodiments, the electronic device further includes a power key, a return to zero key, an I / U selection key and an information operation key, and the power key, the return to zero key, the I / U selection key and the information operation key are all arranged on the housing 7 .

[0043] Specifically, the power key is used to turn on the current clamp device 10, the zero key is used to perform zeroing operation on the measurement module 2 to ensure accurate measurement when detecting the working current of the electrical appliance to be tested and the output voltage of the battery, and the I / U selection key is used to switch the measurement mode of the measurement module. For example, when the I / U selection key is I, the measurement module 2 detects the working current of the electrical appliance to be tested through the second current clamp; or when the I / U selection key is U, the measurement module 2 detects the output voltage of the battery through the first current clamp.

[0044] In some embodiments, the electronic device 40 further includes a switch status indicator and a network strength indicator, wherein the switch status indicator is disposed on the housing 7 to indicate the switch operation state of the current clamp device 10; the network strength indicator is disposed on the housing 7 to indicate the network strength between the communication module 3 and the external device. Exemplarily, the current clamp device 10 is turned on after pressing the power button for 1 second, and the switch status indicator light flashes to indicate that the current clamp device 10 is starting up. If the switch status indicator light is always on, it means that the current clamp device 10 has completed startup. If the user does not perform any operation within the preset time, the switch status indicator light goes out, and the current clamp device 10 enters the standby mode. The preset time can be 8s, 9s, 10s, etc., and there is no specific limitation here.

[0045] In some embodiments, the power key, return key, I / U selection key and information operation key all adopt a membrane keyboard.

[0046] Specifically, the inspector can directly operate the power key, zero key, I / U selection key and information operation key through the membrane keyboard.

[0047] In some embodiments, a first connection port and a second connection port are provided on the shell 7, the first connection port is detachably connected to the first current clamp 5 through a cable, and the second connection port is detachably connected to the second current clamp 6 through a cable; the electronic device 40 also includes a first protective cover, and the first protective cover is matched with the first connection port and / or the second connection port.

[0048] Specifically, refer to Figure 2 As shown, a first connection port and a second connection port are provided on the shell 7, wherein a first protective cover is matched with the first connection port and / or the second connection port to protect the interface when there is no cable connection at the first connection port and / or the second connection port to avoid damage to the interface.

[0049] In some embodiments, the electronic device 40 further includes a service interface, which is disposed on the housing 7 and is used to connect to an external software configuration device, which is used to perform software updates and system configuration for the current clamp device 10 .

[0050] Specifically, when the current clamp device 10 needs to perform software update and / or system configuration, the external software configuration device is connected to the current clamp device through the service interface, so that the software update and / or system configuration of the current clamp device 10 can be performed. The service interface can be various types of interfaces, such as a USB interface, which is not specifically limited here.

[0051] In some embodiments, the service interface includes a USB interface and a serial communication interface.

[0052] In some embodiments, the electronic device 40 further includes a second protective cover, and the second protective cover is matched with the service interface.

[0053] Specifically, the second protective cover is matched with the service interface and is used to protect the interface and prevent damage to the interface when no external software configuration device is connected to the service interface.

[0054] In some embodiments, Figure 1 As shown, the electronic device 40 also includes a power supply module 4, wherein the power supply module 4 is arranged in the shell of the current clamp device 10, and is used to supply power to the current clamp device 10; a charging status indicator light is provided on the shell of the current clamp device 10 to indicate the charging status of the power supply module 4.

[0055] Specifically, when the current clamp device 10 has no external device to power it, the power supply module 4 is used to power the current clamp device 10, which can ensure that the current clamp device 10 can be used normally, and when the current clamp device 10 has an external device to power it, the power supply module 4 can be charged by the external device, and the charging status of the power supply module 4 is indicated by the charging status indicator light.

[0056] The second aspect of the present invention provides a functional testing method, as shown below: Figure 3 The functional testing method according to an embodiment of the present invention at least includes steps S1-S4, which are specifically as follows: Step S1, under the condition that the diagnostic device is electrically connected to the truck, sending a connection prompt message about the current clamp device.

[0057] Specifically, after the diagnostic device 20 is electrically connected to the truck, it sends a signal to control the truck to power off, and sends connection prompt information about the current clamp device 10, prompting that the current clamp 1 can be connected to avoid danger caused by connecting the current clamp 1 when it is powered on.

[0058] Step S2: After determining that the current clamp device meets the test conditions, the truck is powered on and the electrical appliances to be tested are started.

[0059] Specifically, after determining that the current clamp device 10 meets the test conditions, the diagnosis module 20 controls the truck to be powered on, and sends a signal to control the start-up of the electrical appliance to be tested, and the battery supplies power to the electrical appliance to be tested.

[0060] Step S3, obtaining the working current and of the electrical appliance to be tested.

[0061] Specifically, the measuring module 2 detects the working current of the electrical appliance to be tested, and sends the working current to the diagnostic device 20 through the communication module 3. The diagnostic device 20 identifies the functional state of the electrical appliance to be tested by analyzing and processing the working current.

[0062] Step S4, identifying the functional state of the electrical appliance to be tested according to the working current.

[0063] Specifically, the functional state of the electrical appliance to be tested is identified by comparing the working current with the working current of the electrical appliance to be tested when it is working normally, thereby realizing the detection of the electrical appliance to be tested. Wherein, for identifying the functional state of the electrical appliance to be tested, the working current is selected for identification according to different detection requirements of the electrical appliance to be tested. For example, the electrical appliance to be tested is a generator, and the output voltage of the generator when it is working normally is 24V. If the output voltage is detected to be greater than 24V, the functional state of the generator is abnormal.

[0064] According to the functional testing method of the embodiment of the present invention, after the diagnostic device 20 is electrically connected to the truck and it is determined that the current clamp device 10 meets the test conditions, the truck can be powered on and the electrical appliances to be tested can be started, and the truck battery supplies power to the electrical appliances to be tested, so that the functional status of the electrical appliances to be tested can be identified according to the working current, thereby realizing the detection of all electrical appliances that need to be tested in the truck, and the whole process can automatically identify the functional status of the electrical appliances to be tested, realizing automated detection, which can save manpower and time, and can also ensure the reliability of detection and improve the safety of the truck. In some embodiments, the test conditions include that the current clamp device is connected to the battery on the truck and the electrical appliance to be tested, and the current clamp device has been zeroed.

[0065] Specifically, after determining that the current clamp device 10 meets the test conditions, that is, the current clamp 1 and the battery on the truck and the electrical appliances to be tested are all in a connected state and the measurement module 2 completes the zeroing operation to ensure that the working current of the electrical appliances to be tested can be accurately measured, the diagnostic module 20 controls the truck to power on, and sends a signal to control the electrical appliances to be tested to start, and the battery powers the electrical appliances to be tested.

[0066] In some embodiments, the electrical appliance to be tested is a generator, and the functional state of the electrical appliance to be tested is identified based on the working current, including if the working current is within the standard working current range of the electrical appliance to be tested, identifying the functional state of the electrical appliance to be tested as normal; if the working current is not within the standard working current range of the electrical appliance to be tested, identifying the functional state of the electrical appliance to be tested as abnormal.

[0067] Specifically, the current of each electrical appliance to be tested when it is working normally, that is, the standard working current range, is written in advance in the program of the method. When detecting the electrical appliance to be tested, the diagnostic device 20 can obtain the working current of the electrical appliance to be tested detected by the measurement module through the communication module 3, and judge whether the working current is within the standard working current range, and then identify the functional state of the electrical appliance to be tested. For example, when the working current is within the standard working current range of the electrical appliance to be tested, the functional state of the electrical appliance to be tested is identified as normal; if the working current is not within the standard working current range of the electrical appliance to be tested, the functional state of the electrical appliance to be tested is identified as abnormal.

[0068] Exemplarily, when the electrical appliance to be tested is a generator, the standard operating current range can be set to 20A-95A, then the detection module 2 detects the operating current of the generator, and sends the operating current to the diagnostic device 20 through the communication module 3. If the diagnostic device 20 determines that the operating current is within 20A-95A, the functional state of the generator is identified as normal; if the diagnostic device 20 determines that the operating current is not within 20A-95A, the functional state of the generator is identified as abnormal.

[0069] In some embodiments, the electrical appliance to be tested is a car light, and the working current includes a first current after the car light is started and a second current after the car light is turned off. The functional state of the electrical appliance to be tested is identified based on the working current, including calculating the current difference between the first current and the second current; if the current difference is within the standard current difference range, the functional state of the car light is determined to be normal; if the current difference is not within the standard current difference range, the functional state of the car light is determined to be abnormal.

[0070] Specifically, the current difference when the car light is working normally, that is, the standard current difference range, is written in advance in the program of the present method. When detecting the electrical appliance to be tested, the diagnostic device 20 can obtain the first current after the car light is started and the second current after the car light is turned off detected by the measuring module 2 through the communication module 3, and calculate the current difference between the first current and the second current. By judging whether the current difference is within the standard current difference range, the functional state of the car light is determined. For example, if the current difference is within the standard current difference range, the functional state of the car light is determined to be normal; if the current difference is not within the standard current difference range, the functional state of the car light is determined to be abnormal.

[0071] Exemplary, reference Figure 2The functional testing method of the embodiment of the present invention is understood as shown in Table 1. Figure 4 : is a schematic diagram of a truck headlight according to an embodiment of the present invention, wherein the truck headlight comprises a left front light, a right front light, a left rear light, a right rear light, a rear working light and four side lights, which are controlled by a controller, the left front light and the right front light respectively comprise a turn signal light, a daytime running light, a low beam light, a fog light and a high beam light, the left rear light and the right rear light respectively comprise a turn signal light, a rear fog light, a parking light, a brake light and a reversing light, if the headlight is a high beam headlight, the standard current difference range can be set to 1A-5A, then the detection module 2 detects a first current after the high beam headlight is started and a second current after the high beam headlight is turned off, and sends the first current and the second current to the diagnostic device 20 through the communication module 3, the diagnostic device 20 calculates the difference between the first current and the second current, if the diagnostic device 20 determines that the current difference is within 1A-5A, then the functional state of the high beam headlight is identified as normal; if the diagnostic device 20 determines that the current difference is not within 1A-5A, then the functional state of the generator is identified as abnormal. Among them, the standard current difference range can be set according to different actual conditions, and no specific restrictions are made here. For example, when the headlight is a turn signal, the standard current difference range is 0.7A-1.5A; when the headlight is a daytime running light, the standard current difference range is 0.25A-1A; when the headlight is a fog light, the standard current difference range is 2A-5A; when the headlight is a low beam, the standard current difference range is 0.5A-5A; when the headlight is a rear working light, the standard current difference range is 2A-5A; when the headlight is a left or right brake light, the standard current difference range is 0.25A-1A; when the headlight is a daytime running light, the standard current difference range is 0.7A-1.5A.

[0072] Table 1

[0073] In some embodiments, the function testing method further includes stopping the identification operation and sending function abnormality information if the diagnostic device identifies the function status as abnormal for a preset number of consecutive times.

[0074] Specifically, to ensure the reliability of the detection of the electrical appliance to be tested, the diagnostic device 20 will detect the electrical appliance to be tested multiple times. If the functional status is identified as abnormal for a preset number of consecutive times, such as 10 connections, it means that there is a fault in the electrical appliance to be tested. Then the identification operation will be stopped and the functional abnormality information will be sent, so that the detection personnel can directly receive the functional abnormality information.

[0075] Reference below Figure 5 The function testing method of the embodiment of the present invention is described to detect the function of the generator, and the specific steps are as follows.

[0076] Step S5, the vehicle is powered on and the generator is started.

[0077] Step S6: the functional test system obtains the generator rotation speed, and the current clamp device repeatedly detects the working current of the generator.

[0078] Step S7, shut down the generator.

[0079] Step S8, whether the generator speed is 0, if so, execute step S10; if not, execute step S9.

[0080] Step S9: the functional testing system prompts the user to shut down the generator.

[0081] Step S10, whether the current value is greater than 20A and less than 90A, if so, execute step S11; if not, execute step S13.

[0082] Step S11, the diagnostic device repeats the identification to see if the number of identifications is greater than 10. If so, execute step S12; if not, execute step S10.

[0083] Step S12: the generator function status is abnormal.

[0084] Step S13: The generator function status is normal, and the printing device prints the generator function status.

[0085] Reference below Figure 6 The functional testing method of an embodiment of the present invention is described to detect the function of a vehicle light, and the specific steps are as follows.

[0086] Step S14, the vehicle is powered on and the lights are turned off.

[0087] Step S15: the current clamp device reads the second current and sends the second current to the diagnostic device.

[0088] Step S16, turn on the car lights.

[0089] Step S17: the current clamp device reads the first current and sends the first current to the diagnostic device.

[0090] Step S18, the diagnostic device calculates the current difference to determine whether the current difference is in the range of 0.1A-4A.

[0091] Step S19, the diagnostic device repeats the identification to see if the number of identifications is greater than 10. If so, execute step S20; if not, execute step S18.

[0092] Step S20: the functional status of the vehicle lights is abnormal.

[0093] Step S21, the functional status of the vehicle lights is normal, and the printing device prints the functional status of the vehicle lights.

[0094] A third aspect of the present invention provides a diagnostic device 20, such as Figure 4As shown, it includes at least one processor 5; a memory 6 connected to the at least one processor 5 in communication; The memory 6 stores a computer program that can be executed by at least one processor 5 , and the at least one processor 5 implements the functional testing method of the above embodiment when executing the computer program.

[0095] The diagnostic device 20 according to the embodiment of the present invention adopts the above-mentioned functional testing method to automatically detect all electrical appliances on the truck, which can not only save manpower and time, but also ensure the reliability of the detection and improve the safety of the truck.

[0096] In the description of this specification, any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code including one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0097] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or otherwise processing in a suitable manner if necessary, and then stored in a computer memory.

[0098] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0099] A person skilled in the art may understand that all or part of the steps in the above-mentioned embodiment method may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0100] In addition, each functional unit in each embodiment of the present invention may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0101] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

[0102] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0103] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A functional testing system, characterized in that: include: A current clamp device, the current clamp device comprising: A current clamp, which is used to connect to an electrical appliance to be tested on the truck when performing a functional test on the truck; A measuring module, the measuring module is connected to the current clamp, and the measuring module is used to detect the working current of the electrical appliance to be tested after the electrical appliance to be tested is started; A communication module, the communication module is electrically connected to the measurement module; A diagnostic device is electrically connected to the truck and is communicatively connected to the communication module, and is used to identify the functional status of the electrical appliance to be tested based on the working current provided by the communication module.

2. The functional testing system according to claim 1, characterized in that: The current clamp device also includes: A power supply module, wherein the power supply module is used to supply power to the current clamp device.

3. The functional testing system according to claim 1 or 2, characterized in that: The diagnostic device is also used to display the functional status of the electrical appliance to be tested.

4. The functional testing system according to claim 3, characterized in that: Also includes: A printing device, wherein the printing device is communicatively connected to the diagnostic device, and the printing device is used to print the functional status of the electrical appliance to be tested.

5. A functional testing method, characterized in that: A diagnostic device used in a functional test system according to any one of claims 1 to 4, the method comprising: Sending connection prompt information about the current clamp device under the condition that the diagnostic device is electrically connected to the truck; After determining that the current clamp device meets the test conditions, controlling the truck to be powered on and controlling the electrical appliances to be tested to be started; Obtaining the working current of the electrical appliance to be tested; The functional state of the electrical appliance to be tested is identified according to the operating current.

6. The functional testing method according to claim 5, characterized in that: The test conditions include that the current clamp device, the battery on the truck, and the electrical appliance to be tested are all in a connected state and the current clamp device has been zeroed.

7. The functional testing method according to claim 5, characterized in that: The electrical appliance to be tested is a generator, and identifying the functional state of the electrical appliance to be tested according to the working current includes: If the working current is within the standard working current range of the electrical appliance to be tested, identifying that the functional state of the electrical appliance to be tested is normal; If the operating current is not within the standard operating current range of the electrical appliance to be tested, the functional state of the electrical appliance to be tested is identified as abnormal.

8. The functional testing method according to claim 5, characterized in that: The electrical appliance to be tested is a vehicle lamp, the working current includes a first current after the vehicle lamp is started and a second current after the vehicle lamp is turned off, and identifying the functional state of the electrical appliance to be tested according to the working current includes: calculating a current difference between the first current and the second current; If the current difference is within the standard current difference range, determining that the functional state of the vehicle light is normal; If the current difference is not within the standard current difference range, it is determined that the functional state of the vehicle light is abnormal.

9. The functional testing method according to claim 7 or 8, characterized in that: Also includes: If the diagnostic device identifies the functional state as abnormal for a preset number of consecutive times, it will stop the identification operation and send functional abnormality information.

10. A diagnostic device, characterized in that include: at least one processor; a memory communicatively coupled to at least one of the processors; Wherein, the memory stores a computer program that can be executed by at least one of the processors, and when at least one of the processors executes the computer program, the functional testing method described in any one of claims 5 to 9 is implemented.

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