VEHICLE BEHAVIOR DATA STORAGE CONTROL SYSTEM, ELECTRONIC CONTROL UNIT AND DATA STORAGE DEVICE
First Claim
1. A vehicle behavior data storage control system, comprising:
- a storage control device that includesa behavior determination section that acquires behavior data and makes a first determination of whether or not an unexpected behavior has occurred based on the acquired behavior data, anda memory for storing therein the behavior data associated with the unexpected behavior; and
an electronic control unit (ECU) that controls a predetermined control target and is connected to the storage control device via an in-vehicle network to enable data exchange with the storage control device,wherein;
the ECU includes a determination result providing section;
in response to a change in the behavior data of the ECU, the determination result providing section makes a second determination of whether or not the change in the behavior data of the ECU is attributed to control performed by the ECU;
in response to determining that the change in the behavior data is attributed to the control performed by the ECU, the determination result providing section transmits a result of the second determination to the in-vehicle network;
the storage control device further includes a storage control section and a correction section;
at a time when the behavior determination section makes the first determination that the unexpected behavior has occurred, the storage control section records the behavior data at the time of making the first determination in the memory;
the correction section makes a third determination of whether or not content of the unexpected behavior relates to the result of the second determination transmitted from the ECU to the in-vehicle network; and
when making the third determination that the content of the unexpected behavior relates to the result of the second determination, the correction section deletes or permits overwriting the behavior data stored in the memory.
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Accused Products
Abstract
A vehicle behavior data storage control system is disclosed. The system includes a storage control device and an electronic control unit (ECU). The storage control device determines whether or not an unexpected behavior has occurred based on a behavior data. When the ECU determines that a change in the behavior data is attributed to control performed by the ECU, the ECU transmits a determination result to an in-vehicle network. At a time when the storage control device determines that the unexpected behavior has occurred, the storage control device records the behavior data at this time in the memory. When determining that the unexpected behavior relates to the control performed by the ECU, the storage control device deletes or permits overwriting the behavior data stored in the memory.
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Citations
14 Claims
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1. A vehicle behavior data storage control system, comprising:
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a storage control device that includes a behavior determination section that acquires behavior data and makes a first determination of whether or not an unexpected behavior has occurred based on the acquired behavior data, and a memory for storing therein the behavior data associated with the unexpected behavior; and an electronic control unit (ECU) that controls a predetermined control target and is connected to the storage control device via an in-vehicle network to enable data exchange with the storage control device, wherein; the ECU includes a determination result providing section; in response to a change in the behavior data of the ECU, the determination result providing section makes a second determination of whether or not the change in the behavior data of the ECU is attributed to control performed by the ECU; in response to determining that the change in the behavior data is attributed to the control performed by the ECU, the determination result providing section transmits a result of the second determination to the in-vehicle network; the storage control device further includes a storage control section and a correction section; at a time when the behavior determination section makes the first determination that the unexpected behavior has occurred, the storage control section records the behavior data at the time of making the first determination in the memory; the correction section makes a third determination of whether or not content of the unexpected behavior relates to the result of the second determination transmitted from the ECU to the in-vehicle network; and when making the third determination that the content of the unexpected behavior relates to the result of the second determination, the correction section deletes or permits overwriting the behavior data stored in the memory. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A subject electronic control unit that (i) acquires an actual behavior data indicating an actual vehicle behavior, (ii) determines, based on the acquired actual behavior data, whether or not an unexpected behavior has occurred, and (iii) is connected to a network when it is determined that unexpected behavior has occurred, wherein a storage device for storing the actual behavior data is connected to the network, the subject electronic control unit comprising:
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a controller that performs an estimation operation to provide an estimated behavior data based on an amount of control performed by the subject electronic control unit, wherein; when a difference between the estimated behavior data and the actual behavior data is less than or equal to a predetermined value, the controller outputs first information to the network; and the first information indicates that the actual behavior data is attributed to the control performed by the subject electronic control unit. - View Dependent Claims (8, 9, 10, 11)
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12. A data storage device connected to a network for a vehicle, wherein the network is connected with an electronic control unit, wherein the electronic control unit outputs a control command for controlling an actuator, wherein when actual behavior data representing an actual vehicle behavior is attributed to the control command of the electronic control unit, the electronic control unit outputs a correction command, the data storage device comprising:
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a memory; and a controller, wherein; when determining, based on the actual behavior data, that an unexpected behavior has occurred, the controller records the actual behavior data in the memory; and when receiving the correction command, the controller deletes the actual behavior data stored in the memory or changes the actual behavior data stored in the memory into an overwritable state. - View Dependent Claims (13)
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14. A vehicle behavior data storage control system, comprising:
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a storage control device that includes a behavior determination section that acquires behavior data and makes a first determination of whether or not an unexpected behavior has occurred based on the acquired behavior data, and a memory for storing therein the behavior data associated with the unexpected behavior; and an electronic control unit (ECU) that controls a predetermined control target and is connected to the storage control device via an in-vehicle network to enable data exchange with the storage control device, wherein; the ECU includes a determination result providing section; in response to a change in the behavior data of the ECU, the determination result providing section makes a second determination of whether or not the change in the behavior data of the ECU is attributed to control performed by the ECU; in response to determining that the change in the behavior data is attributed to the control performed by the ECU, the determination result providing section transmits a result of the second determination to the in-vehicle network; the storage control device further includes a storage control section; and at a time when the behavior determination section makes the first determination that the unexpected behavior has occurred, the storage control section records the behavior data at the time of making the first determination in the memory.
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Specification