Storage system and storage control device

Abstract

The present disclosure provides a storage system and a storage control device. The storage system stores motion information of an assist system assisting a driver of a vehicle, comprising: a storage device; a first acquisition unit that acquires the motion information from the assist system; a second acquisition unit that acquires information related to the driver's driving operation of the vehicle; a determination unit that determines, based on the motion information acquired by the first acquisition unit and the information related to the driving operation acquired by the second acquisition unit, whether the driving operation is a first operation that inhibits assistance provided by the assist system; and a storage unit that, in response to the determination unit determining that the driving operation is the first operation, causes the storage device to store the motion information in association with external information related to the vehicle's surrounding environment.

Description

Technical Field

[0001] The present disclosure relates to a storage system and a storage control device. Background Art

[0002] Patent Document 1 discloses a storage system for storing vehicle information. The system includes multiple ECUs (Electronic Control Units). When an abnormality is detected by the self-diagnosis function of any ECU, a storage command for storing the vehicle information is sent via a communication line to other ECUs that have not detected the abnormality.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2002-193070 Summary of the Invention

[0006] Furthermore, the system described in Japanese Patent Application Laid-Open No. 2002-193070 is conceivable to include an ECU (auxiliary ECU) that assists the driver of the vehicle. Furthermore, to verify the operation of the auxiliary ECU, it is conceivable to store information related to the auxiliary ECU's operation and the environment outside the vehicle during the assist timing. The system described in Japanese Patent Application Laid-Open No. 2002-193070 stores information when an abnormality is detected in any of the multiple ECUs, including the auxiliary ECU. Therefore, the system described in Japanese Patent Application Laid-Open No. 2002-193070 has difficulty storing information in a scenario where assistance is performed, which is normal for the system operation but unnecessary for the driver. The present disclosure provides a technology that can appropriately store information related to assist control.

[0007] A storage system according to one aspect of the present disclosure stores action information of an assist system for assisting a driver of a vehicle. The storage system includes a storage device, a first acquisition unit, a second acquisition unit, a determination unit, and a storage unit. The first acquisition unit acquires action information from the assist system. The second acquisition unit acquires information related to the driver's driving operation of the vehicle. The determination unit determines whether the driving operation is a first operation that suppresses assistance provided by the assist system based on the action information acquired by the first acquisition unit and the information related to the driving operation acquired by the second acquisition unit. In response to the determination by the determination unit that the driving operation is the first operation, the storage unit causes the storage device to store the action information in association with external information related to the surrounding environment of the vehicle.

[0008] In this storage system, action information is acquired from the assistance system, and information related to the driver's driving operation of the vehicle is acquired. It is then determined whether the driver's driving operation is a first operation that suppresses the assistance provided by the assistance system. In response to determining that the driving operation is the first operation, the action information and external information related to the vehicle's surroundings are stored in association. The first operation is performed when the assistance provided by the assistance system is unnecessary for the driver. Therefore, the storage system stores information based on the driver's first operation, thereby being able to store information about scenarios in which assistance is performed that is normal as a system action but unnecessary for the driver. Therefore, the storage system can appropriately store information related to assistance control.

[0009] In one embodiment, the storage device may include a first storage device and a second storage device, wherein the first storage device temporarily stores motion information and external information in association with each other, and the second storage device retrieves and stores information from the first storage device. In response to the determination by the determination unit that the driving operation is the first operation, the storage unit outputs an instruction to the second storage device to retrieve and store, among the motion information and external information stored in the first storage device, motion information and external information stored within a predetermined period of time from the timing of the first operation. In this case, even if the driver's response to the driving operation is delayed compared to the assistance that is not necessary for the driver, the storage system can still store information indicating that the assistance that is not necessary for the driver was performed.

[0010] In one embodiment, the first operation may also be at least one driving operation selected from the group consisting of an operation to change the illumination position of the headlights set by the auxiliary system, a steering operation in the opposite direction during a steering assistance process performed by the auxiliary system, a braking operation during an acceleration assistance process performed by the auxiliary system, and an acceleration operation during a deceleration assistance process performed by the auxiliary system.

[0011] In one embodiment, the assistance system may provide assistance by reporting a target speed to the driver, and the determination unit may further determine whether the driving operation is a second operation in which the driver is traveling at a speed that deviates from the target speed reported to the driver by a threshold speed or more. In response to the determination by the determination unit that the driving operation is the second operation, the storage unit causes the storage device to store the action information in association with the external information. Similar to the first operation, the second operation is performed when the assistance provided by the assistance system is unnecessary for the driver. Therefore, by storing information based on the driver's second operation, the storage system can store information about a scenario in which assistance, which is normal for the system operation but unnecessary for the driver, was performed.

[0012] The storage control device of another aspect of the present disclosure causes the storage device to store action information of the auxiliary system that assists the driver of the vehicle. The storage control device includes a first acquisition unit, a second acquisition unit, a determination unit, and a storage unit. The first acquisition unit acquires action information from the auxiliary system. The second acquisition unit acquires information related to the driver's driving operation of the vehicle. The determination unit determines whether the driving operation is a first operation that suppresses the assistance performed by the auxiliary system based on the action information acquired by the first acquisition unit and the information related to the driving operation acquired by the second acquisition unit. In response to the determination by the determination unit that the driving operation is the first operation, the storage unit causes the storage device to store the action information and external information related to the surrounding environment of the vehicle in association. The storage control device has the same effect as the above-mentioned storage system.

[0013] Effects of the Invention

[0014] According to the present disclosure, a technology capable of appropriately storing information related to assist control is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a block diagram of a vehicle including a storage system according to one embodiment.

[0016] Figure 2 This is a flowchart showing an example of the operation of the storage system according to one embodiment.

[0017] Figure 3 This is a diagram explaining information retrieved from the buffer.

[0018] Figure 4 This is a flowchart showing another example of the operation of the storage system according to one embodiment.

[0019] Description of Reference Numerals

[0020] 1: Storage system; 2: Vehicle; 3: External sensor; 4: Internal sensor; 5: Operation sensing sensor; 6: Driving assistance ECU; 9: Driving recorder; 10: Storage control ECU; 11: Auxiliary content acquisition unit (an example of the first acquisition unit); 12: Operation acquisition unit (an example of the second acquisition unit); 13: Action determination unit (an example of the determination unit); 14: Storage unit; 20: Storage device; 21: Buffer; 22: Memory. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description and the drawings, the same or corresponding elements are denoted by the same reference numerals, and repeated description will not be repeated.

[0022] (Vehicle Configuration)

[0023] Figure 1 is a block diagram of a vehicle having a storage system according to one embodiment. Figure 1 As shown, as an example, the storage system 1 is mounted on a vehicle 2. The vehicle 2 is equipped with an assistance system that provides driving assistance to the driver. The content of the driving assistance is not particularly limited. The driving assistance provided may be a so-called ADAS (Advanced Driver Assistance System). ADAS may include following driving assistance, vehicle distance control assistance, ABS (Anti-lock Braking System), brake assistance, steering assistance, speed control assistance, display of external environment information, etc. The storage system 1 stores the action information of the assistance system. The action information includes information that can determine the content of the assistance. For example, the action information of the following driving assistance is information such as the steering amount, steering timing, acceleration and deceleration amount, acceleration and deceleration timing, etc. assigned by the system. The storage system 1 can record information related to the assistance that the driver feels unnecessary in the provided driving assistance by performing the function described later.

[0024] As an example, vehicle 2 includes external sensors 3, internal sensors 4, operation sensing sensors 5, a driving assistance ECU 6, an HMI (Human Machine Interface) 7, an actuator 8, a drive recorder 9, a storage control ECU 10 (an example of a storage control device), and a storage device 20. Storage system 1 is configured to include the storage control ECU and storage device 20.

[0025] External sensor 3 detects external information related to the surrounding environment of vehicle 2. The surrounding environment refers to the location and condition of objects around vehicle 2. External information includes the location, shape, and color of objects ahead of vehicle 2 in its lane. Objects include vehicles, pedestrians, traffic lights, and road markings. External sensor 3 is, for example, a camera, and the external information may also be image information.

[0026] The camera is a device that captures images of the exterior of vehicle 2. For example, the camera is located behind the windshield of vehicle 2. The camera acquires image information related to the exterior of vehicle 2. The camera can be a monocular camera or a stereo camera. A stereo camera has two imaging units configured to reproduce binocular parallax. The image information captured by the stereo camera also includes depth information.

[0027] External sensor 3 is not limited to a camera; it may also be a radar sensor or the like. A radar sensor uses radio waves (e.g., millimeter waves) or light to detect objects around vehicle 2. Examples of radar sensors include millimeter-wave radars and laser radars (LIDAR). Radar sensors detect objects by transmitting radio waves or light around vehicle 2 and receiving the reflected radio waves or light.

[0028] The internal sensor 4 is a detector that detects the driving state of the vehicle 2. The internal sensor 4 may include at least one of a vehicle speed sensor, an acceleration sensor, and a yaw angular velocity sensor. The vehicle speed sensor is a detector that detects the speed of the vehicle 2. As the vehicle speed sensor, for example, a wheel speed sensor provided on the wheel of the vehicle 2 or a drive shaft that rotates integrally with the wheel is used to detect the rotational speed of the wheel. The acceleration sensor is a detector that detects the acceleration of the vehicle 2. The acceleration sensor may include a front and rear acceleration sensor that detects the acceleration of the vehicle 2 in the front and rear directions and a lateral acceleration sensor that detects the acceleration of the vehicle 2 in the left and right directions. The yaw angular velocity sensor is a detector that detects the yaw angular velocity (rotational angular velocity) of the vehicle 2 about the vertical axis of the center of gravity. As the yaw angular velocity sensor, for example, a gyroscope sensor may be used.

[0029] The operation sensing sensor 5 detects the driving operation of the driver of vehicle 2. For example, the operation sensing sensor 5 includes at least one of a steering angle sensor, a lever operation sensing sensor, and a pedal sensor. The steering angle sensor detects the amount of rotation of the steering shaft of vehicle 2. The lever operation sensing sensor detects the operation of a lever on the driver's seat (such as a turn signal indicator or the direction of the headlights (high beam or low beam)). The pedal sensor detects the amount of operation of the brake pedal, the amount of operation of the accelerator pedal, and the like.

[0030] The driving assistance ECU 6 functions as a driving assistance system that assists the driver of the vehicle 2. The driving assistance ECU 6 is an electronic control unit having a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), a CAN (Controller Area Network) communication circuit, and the like. The driving assistance ECU 6 is connected to a network that uses a CAN communication circuit for communication, for example, and is connected to the components of the vehicle 2 described above in a communicative manner. The driving assistance ECU 6 operates the CAN communication circuit based on a signal output by the CPU, inputs and outputs data, stores the data in the RAM, loads the program stored in the ROM into the RAM, and executes the program loaded into the RAM, thereby realizing the functions described below. The driving assistance ECU 6 can also be composed of multiple electronic control units.

[0031] The HMI 7 is an interface between passengers (including the driver) of the vehicle 2 and the system implemented by the driving support ECU 6. As an example, the HMI 7 includes a touch display that can display information and accept operation inputs from passengers.

[0032] The actuator 8 is a device that controls the driving of the vehicle 2. It includes at least an engine actuator, a brake actuator, and a steering actuator. The engine actuator changes the amount of air supplied to the engine (for example, by changing the throttle opening) in response to driving operations or control signals from the driving assistance ECU 6, thereby controlling the driving force of the vehicle 2. It should be noted that if the vehicle 2 is a hybrid vehicle or an electric vehicle, the engine actuator controls the driving force of the motor serving as the power source.

[0033] The brake actuator controls the braking system based on control signals from the driving assistance ECU 6, controlling the braking force applied to the wheels of vehicle 2. A hydraulic braking system, for example, can be used as the braking system. It should be noted that if vehicle 2 has a regenerative braking system, the brake actuator can also control both the hydraulic and regenerative braking systems. The steering actuator controls the driving of the assist motor in the electric power steering system, which controls the steering torque, in response to control signals from the driving assistance ECU 6. Thus, the steering actuator controls the steering torque of vehicle 2.

[0034] The driving recorder 9 is a device that records images of the surroundings of the vehicle 2. The driving recorder 9 includes a camera that captures the surroundings of the vehicle 2 and an internal storage device. In other words, the driving recorder 9 is a device that obtains external information related to the surroundings of the vehicle 2. Figure 1In the figure, the external sensor 3 and the drive recorder 9 are shown separately for simplicity of illustration, but the drive recorder 9 may be included in the external sensor 3. The drive recorder 9 has a function of outputting images to an external storage device 20.

[0035] The storage control ECU 10 is a device that controls the storage device 20. Like the driving assistance ECU 6, the storage control ECU 10 is an electronic control unit equipped with a CPU, ROM, RAM, a CAN communication circuit, and other components. The storage control ECU 10 is connected to the storage device 20, determines the information to be stored in the storage device 20, and causes the storage device 20 to store the information. Alternatively, the storage control ECU 10 can cause the storage device 20 to determine and store the information.

[0036] The storage device 20 is a device for storing information, and is composed of ROM, RAM, HDD (Hard Disk Drive), etc. The storage device 20 is connected to the driving assistance ECU 6 and obtains motion information from the driving assistance ECU 6. The storage device 20 is connected to the driving recorder 9 and obtains external information from the driving recorder 9. The following is an example of external information, which is image information. In the storage device 20, motion information and image information can be associated in a time series. The storage device 20 stores motion information and image information based on a control signal (an example of an instruction) output from the storage control ECU 10.

[0037] The storage device 20 may, for example, begin storing the motion information and image information in association with each other based on the timing of receiving a storage start signal output from the storage control ECU 10. Alternatively, the storage device 20 may begin storing the motion information and image information in association with each other based on the timing indicated by a start trigger signal. The storage device 20 may terminate the storage operation after a predetermined period has elapsed from the timing of receiving the storage start signal or the timing indicated by the start trigger signal. Alternatively, the storage device 20 may terminate the storage operation at the timing of receiving a storage end signal or the timing indicated by the end trigger signal.

[0038] The storage device 20 can temporarily store action information and image information, and copy a specified range of information in the temporarily stored information from the temporary storage area to the non-temporary storage area based on the control signal output from the storage control ECU 10. Thus, the storage device 20 can store information back to the period before the timing of receiving the control signal of the storage control ECU 10, that is, back to the past. In order to achieve such an action, the storage device 20 has a buffer 21 (an example of a first storage device) and a memory 22 (an example of a second storage device). The buffer 21 is a storage device that temporarily stores action information and image information. Temporary storage refers to storage in a manner of overwriting or erasing when the capacity exceeds a threshold or an event occurs. In short, the buffer 21 is configured to overwrite the information from the head of the time series when the capacity exceeds a threshold. Thus, the buffer 21 can continuously store observation data of a time series for a certain period of time.

[0039] The memory 22 retrieves and stores information from the buffer 21. Of the motion information and image information stored in the buffer, the memory 22 retrieves and stores the motion information and image information stored during the period specified by the storage control ECU 10. The period specified by the storage control ECU 10 may also be a predetermined period starting from the timing of receiving the storage start signal or the timing specified by the start trigger signal. The predetermined period is a predetermined time period arbitrarily set in advance.

[0040] The storage device 20 may also be configured to temporarily store motion information and image information and prohibit overwriting or erasing a specified range of the temporarily stored information based on a control signal output by the storage control ECU 10. In this case, the storage device 20 only needs to include either the buffer 21 or the memory 22.

[0041] In this way, the storage control ECU 10 and the storage device 20 can work together to store the motion information and image information for the period specified by the storage control ECU 10 in a non-temporary area in an associated manner. The above-mentioned processing can be achieved not only by the storage control ECU 10 and the control chip equipped in the storage device 20 working together, but also by the storage control ECU 10 alone.

[0042] (Storage control ECU details)

[0043] The storage control ECU 10 functionally includes an auxiliary content acquisition unit 11 (an example of a first acquisition unit), an operation acquisition unit 12 (an example of a second acquisition unit), an action determination unit 13 (an example of a determination unit), and a storage unit 14 .

[0044] The assistance content acquisition unit 11 acquires action information from the driving assistance ECU 6. As described above, the action information includes information that can identify the assistance content. The operation acquisition unit 12 acquires information related to the driver's driving operation of the vehicle 2. The operation acquisition unit 12 acquires information related to the driving operation from the operation sensing sensor 5.

[0045] The action determination unit 13 determines whether the driving operation is the first operation that inhibits the assistance provided by the driving assistance ECU 6 based on the action information acquired by the assistance content acquisition unit 11 and the information related to the driving operation acquired by the operation acquisition unit 12. The action determination unit 13 determines the assistance content based on the action information of the driving assistance ECU 6 and the driving operation based on the information related to the driving operation sensed by the operation sensing sensor 5. The action determination unit 13 then compares the assistance content with the driving operation to determine whether the driving operation is the first operation that inhibits assistance. "Inhibiting assistance" refers to a state in which the driving operation is performed in a manner that does not provide the assistance effect or that reduces the assistance effect.

[0046] For example, assume that the assistance content acquisition unit 11 acquires action information from the driving assistance ECU 6 indicating that the driving assistance ECU 6 has set the headlights' illumination position to high beam. Furthermore, assume that the operation detection sensor 5 detects information regarding a driving operation to reset the headlights from high beam to low beam. In this case, the action determination unit 13 determines that the driving operation to reset the headlights from high beam to low beam is a driving operation that does not provide an assistance effect, that is, a first operation.

[0047] For example, assume that steering assistance is provided by the driving assistance ECU 6, and the assistance content acquisition unit 11 acquires action information including the steering direction from the driving assistance ECU 6. Furthermore, assume that the operation sensing sensor 5 senses information regarding a steering operation in the direction opposite to the steering direction during the steering assistance provided by the driving assistance ECU 6. In this case, the action determination unit 13 determines that the operation of changing the steering direction set by the driving assistance ECU 6 is a driving operation that does not utilize the steering assistance provided by the driving assistance ECU 6, that is, a first operation.

[0048] For example, assume that the driving assistance ECU 6 is providing speed assistance, and the assistance content acquisition unit 11 acquires action information including acceleration and deceleration from the driving assistance ECU 6. Furthermore, assume that the operation sensing sensor 5 senses information related to a driving operation of depressing the brake pedal during acceleration assistance provided by the driving assistance ECU 6. In this case, the action determination unit 13 determines that the braking operation performed during acceleration assistance provided by the driving assistance ECU 6 is a driving operation that does not utilize the acceleration assistance provided by the driving assistance ECU 6, that is, a first operation. Similarly, assume that the operation sensing sensor 5 senses information related to a driving operation of depressing the accelerator pedal during deceleration assistance provided by the driving assistance ECU 6. In this case, the action determination unit 13 determines that the acceleration operation performed during deceleration assistance provided by the driving assistance ECU 6 is a driving operation that does not utilize the deceleration assistance provided by the driving assistance ECU 6, that is, a first operation.

[0049] In response to the action determination unit 13 determining that the driving operation is the first operation, the storage unit 14 causes the storage device 20 to store the motion information and the external information in association with each other.

[0050] (Storage System Operation)

[0051] Figure 2 This is a flowchart showing an example of the operation of the storage system according to one embodiment. Figure 2 The flowchart shown starts, for example, when the operation switch of the storage system 1 is turned on by an operation of a passenger.

[0052] like Figure 2 As shown, as a temporary storage process (step S10), the storage device 20 of the storage system 1 stores the operation information of the driving support ECU 6 and the external information of the vehicle 2 (for example, the image information of the drive recorder 9) in the buffer 21. As a result, the buffer 21 stores the operation information and image information for a certain period of time in association with each other.

[0053] As a first acquisition process (step S12), the assist content acquisition unit 11 of the storage control ECU 10 acquires action information from the driving assist ECU 6. Next, as a second acquisition process (step S14), the operation acquisition unit 12 of the storage control ECU 10 acquires information related to the driving operation from the operation sensing sensor 5.

[0054] As a determination process (step S16 ), the action determination unit 13 of the storage control ECU 10 determines whether the driving operation is the first operation based on the action information acquired in step S12 and the information on the driving operation acquired in step S14 .

[0055] If the driving operation is determined to be the first operation (step S16: YES), the storage unit 14 outputs a start trigger signal to the storage device 20 as an instruction process (step S18). Next, as an extraction process (step S20), the storage device 20 extracts data stored in the buffer 21 during the period from the start trigger signal to a timing that is a predetermined time later.

[0056] Figure 3 This is a diagram that explains the information taken out from the buffer. Figure 3 In FIG, the information stored in the buffer 21 is shown as a history in a time series. Figure 3 As shown, the horizontal axis is the time axis t, and the frame images G1 to G12 of the driving recorder 9 are stored in the buffer 21 as external information in the order of shooting. In addition, the action information D1 to D6 of the driving assistance ECU 6 is stored in the buffer 21 in a time series. Here, it is assumed that the driving assistance ECU 6 performs assistance that is not necessary for the driver at the occurrence timing H1. Correspondingly, it is assumed that the driver performs a first operation and the storage unit 14 outputs a start trigger signal (output timing H2 (an example of an operation timing)). In this case, the storage device 20 sets the period H from the output timing H2 to the timing H0 (an example of a start timing) for a predetermined period T1 to the output timing H2 as the storage object. In addition, the storage device 20 extracts the frame images G3 to G10 and the action information D2 to D5 contained in the period H from the buffer 21.

[0057] Back to Figure 2 As a storage process (step S22), the storage device 20 causes the memory 22 to store the data extracted in step S20. When step S22 is completed or when it is determined that the driving operation is not the first operation (step S16: No), Figure 2 The flowchart shown ends. When the flowchart ends, it is determined whether the operating switch of the storage system 1 has been turned off by the passenger's operation, for example. If the operating switch has not been turned off, the process returns to step S10 and the process is repeated.

[0058] (Summary of Implementation Methods)

[0059] For example, in camera-based ADAS, erroneous camera recognition can cause user-unwanted operations, leading to system performance degradation and user discomfort. To investigate the cause of such operations, information about the ADAS's actions at the time the user perceived them as unnecessarily necessary, along with related information such as the images at that time, is necessary. However, operations perceived as unnecessary by the user are considered normal system behavior, making it impossible to determine the start timing of recording with conventional systems.

[0060] Storage system 1 acquires action information from the driving assistance ECU 6 and information related to the driver's driving operation of vehicle 2 from the operation sensing sensor 5. It then determines whether the driver's driving operation is a first operation that suppresses the assistance provided by the driving assistance ECU 6. In response to determining that the driving operation is the first operation, the action information is stored in association with external information related to the surrounding environment of vehicle 2. The first operation is performed when the assistance provided by the driving assistance ECU 6 is unnecessary for the driver. Therefore, by storing information based on the driver's first operation, storage system 1 can store information about scenarios in which assistance, which is normal system operation but unnecessary for the driver, was performed. Therefore, storage system 1 can appropriately store information related to assistance control.

[0061] The storage device 20 includes not only the memory 22 but also the buffer 21 capable of temporary storage. Therefore, even when the driver's driving operation response is delayed compared to the assistance unnecessary for the driver, the storage system 1 can store information of the scenario in which the assistance unnecessary for the driver was performed.

[0062] (Variation)

[0063] Although exemplary embodiments have been described above, the present invention is not limited to the exemplary embodiments described above, and various omissions, substitutions, and changes are possible.

[0064] For example, the action determination unit 13 may detect a driving operation in the direction opposite to the steering direction implemented by the driving assistance ECU 6 based on the detection results of the internal sensor 4 (yaw rate sensor) rather than the detection results of the operation detection sensor 5 (steering angle sensor). Information associated with the action information includes not only external information but also map information or GPS (Global Positioning System) vehicle position information.

[0065] The driving assistance ECU 6 can also assist the driver in reporting the target speed as an ADAS. For example, the speed limit (an example of the target speed) obtained from the sign through image recognition can be displayed on a display panel in the vehicle cabin. In addition, the action determination unit 13 determines whether the driving operation is a second operation of driving at a speed that deviates from the speed limit reported to the driver by more than a threshold speed. In order to determine whether the driving operation is the second operation, the threshold speed is pre-set. In response to determining that the driving operation is the second operation, the storage unit 14 can also cause the storage device to store the action information and external information in association.

[0066] Figure 4 This is a flowchart showing another example of the operation of the storage system according to one embodiment. Figure 2 Compared to the flowchart shown, Figure 4 The flowchart shown is different in that step S17 is added, and the rest is the same. Only the differences will be described below, and repeated description will not be repeated.

[0067] If the driving operation is determined not to be the first operation (step S16: No), the action determination unit 13 of the storage control ECU 10 determines whether the driving operation is the second operation based on the action information (displayed speed information) acquired in step S12 and the current vehicle speed as a second determination process (step S17). For example, if the displayed speed is 100 km / h and the current speed is 40 km / h, there is a high possibility that the displayed speed was misidentified and ignored by the driver. If the threshold speed is set to 30 km / h, a driving operation at 40 km / h is determined to be the second operation.

[0068] If it is determined that the driving operation is the second operation (step S17: Yes), the storage unit 14 outputs a start trigger signal to the storage device 20 as an instruction process (step S18). If it is determined that the driving operation is not the second operation (step S17: No), Figure 4 The flowchart shown ends. Figure 4 According to the flowchart shown in FIG. 1 , the storage system 1 can more appropriately store information related to assist control.

Claims

1. A storage system for storing operation information of an assist system for assisting a driver of a vehicle, wherein: The storage system comprises: storage device; a first acquiring unit, configured to acquire motion information from the auxiliary system; a second acquiring unit configured to acquire information related to the driving operation of the vehicle by the driver; a determination unit that determines whether the driving operation is a first operation that inhibits assistance provided by the assistance system based on the action information acquired by the first acquisition unit and the information related to the driving operation acquired by the second acquisition unit; as well as a storage unit that, in response to the determination by the determination unit that the driving operation is the first operation, causes the storage device to store the action information in association with external information related to the surrounding environment of the vehicle; The storage device includes a first storage device and a second storage device, The first storage device temporarily stores the action information and the external information in association with each other. The second storage device acquires and stores information from the first storage device, In response to the determination by the determination unit that the driving operation is the first operation, the storage unit outputs an instruction to the second storage device so that the second storage device obtains and stores the action information and the external information stored in the first storage device, which are stored during the period from the start timing to the operation timing for performing the first operation, and the start timing is the time traced back a specified time from the operation timing.

2. The storage system according to claim 1, wherein: The first operation is at least one driving operation selected from the group consisting of an operation to change the illumination position of the headlights set by the auxiliary system, a steering operation in the opposite direction during the steering assistance process implemented by the auxiliary system, a braking operation during the acceleration assistance process implemented by the auxiliary system, and an acceleration operation during the deceleration assistance process implemented by the auxiliary system.

3. The storage system according to claim 1 or 2, wherein: The assistance system assists the driver by reporting a target speed. The determination unit further determines whether the driving operation is a second operation of traveling at a speed that deviates from the target speed reported to the driver by more than a threshold speed. In response to the determination by the determination unit that the driving operation is the second operation, the storage unit causes the storage device to store the motion information and the external environment information in association with each other.

4. A storage control device that causes a storage device to store operation information of an assist system for assisting a driver of a vehicle, wherein: The storage control device comprises: a first acquiring unit, configured to acquire motion information from the auxiliary system; a second acquiring unit configured to acquire information related to the driving operation of the vehicle by the driver; a determination unit that determines whether the driving operation is a first operation that inhibits assistance provided by the assistance system based on the action information acquired by the first acquisition unit and the information related to the driving operation acquired by the second acquisition unit; as well as a storage unit that, in response to the determination by the determination unit that the driving operation is the first operation, causes the storage device to store the action information in association with external information related to the surrounding environment of the vehicle; The storage device includes a first storage device and a second storage device, The first storage device temporarily stores the action information and the external information in association with each other. The second storage device acquires and stores information from the first storage device, In response to the determination by the determination unit that the driving operation is the first operation, the storage unit outputs an instruction to the second storage device so that the second storage device obtains and stores the action information and the external information stored in the first storage device, which are stored during the period from the start timing to the operation timing for performing the first operation, and the start timing is the time traced back a specified time from the operation timing.

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