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Abnormal response method and electronic control unit

A coping method, a normal technology, applied in electrical components, traffic control systems, traffic control systems of road vehicles, etc., can solve problems such as abnormal control of vehicles, collisions, etc.

Active Publication Date: 2022-03-08
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there is a risk that an abnormal ECU will send an abnormal message to the bus and perform abnormal control on a vehicle equipped with an in-vehicle network. Once a vehicle is abnormally controlled, it may implicate surrounding vehicles and cause a collision, etc. ACCIDENT

Method used

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  • Abnormal response method and electronic control unit
  • Abnormal response method and electronic control unit

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Experimental program
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Effect test

Embodiment approach 1

[0058] Hereinafter, as an embodiment of the present disclosure, when an abnormal frame (abnormal CAN message) sent to the bus is detected in an in-vehicle network system in which a plurality of ECUs mounted on a vehicle communicate via a bus, the drawings are used. ), a vehicle-to-vehicle communication system that notifies the vehicle behind by the vehicle-to-vehicle communication method. In this rear vehicle, based on the content received by the inter-vehicle communication method, abnormal response processing for bringing the vehicle into a safe state is performed.

[0059] [1.1 The overall structure of the vehicle-to-vehicle communication system]

[0060] figure 1 This is a diagram showing the overall configuration of the vehicle-to-vehicle communication system. The vehicle-to-vehicle communication system includes a vehicle 10 (vehicle A), a vehicle 20 (vehicle B), and a certification center 50 .

[0061] Here, the vehicle-to-vehicle communication system uses a public key...

Embodiment approach 2

[0173] Hereinafter, a mode obtained by partially deforming the above-mentioned vehicle-to-vehicle communication system will be described.

[0174] In the abnormality coping method of the vehicle-to-vehicle communication system shown in Embodiment 1, it is shown that a notification of abnormality detection related to a situation in which abnormality is detected in the vehicle 10 (vehicle A) is transmitted to the rear of the vehicle 10 . An example of one vehicle, the vehicle 20 (vehicle B). On the other hand, the vehicle-to-vehicle communication system according to the present embodiment can transfer the abnormality detection notification as a method of responding to abnormality. That is, in the vehicle-to-vehicle communication system according to the present embodiment, the vehicle 10 (vehicle A) transmits an abnormality detection notification concerning the detected abnormality, and the vehicle that has received the abnormality detection notification responds to the abnormali...

Embodiment approach 3

[0193] Hereinafter, a mode obtained by partially deforming the vehicle-to-vehicle communication system shown in Embodiment 2 will be described.

[0194] In the abnormality response method used in the inter-vehicle communication system according to the present embodiment, the content of the level information, which is part of the information related to the abnormal detection in the abnormal detection notification (inter-vehicle communication message), is changed to transfer. Regarding the vehicle-to-vehicle communication system according to Embodiment 3, the description of the same points as those shown in Embodiment 1 or Embodiment 2 described above will be omitted, and different points will be described here.

[0195] [3.1 Vehicle-to-vehicle communication message format]

[0196] Figure 16 This is a diagram showing an example of the structure of the inter-vehicle communication message according to the second embodiment.

[0197] The inter-vehicle communication message 300...

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Abstract

The present disclosure provides an abnormality coping method for appropriately responding in order to suppress the influence of the vehicle when there is a high possibility that the vehicle is abnormally controlled. In an abnormality coping method used in one or more electronic control units mounted in a vehicle, receiving an abnormality frame transmitted from a device mounted in another vehicle when an abnormal frame is detected in an in-vehicle network mounted in the other vehicle The vehicle-to-vehicle communication message of the normal detection notification selects the abnormality handling process to be executed from a plurality of abnormality handling processes predetermined for transitioning to a safe state, for example, based on the received content (for example, step S304 of level determination), Then, the selected abnormality handling process (for example, steps S305 to S311) is executed.

Description

[0001] This application is a divisional application of a Chinese patent application with an application date of November 17, 2015, an application number of 201580011083.7, and an invention title of "Abnormal Response Method and Electronic Control Unit". technical field [0002] The present disclosure relates to techniques for responding when an irregularity (irregularity) frame transmitted in an in-vehicle network in which an electronic control unit communicates is detected. Background technique [0003] In recent years, many devices called electronic control units (ECU: Electronic Control Unit) are arranged in systems in automobiles. The network connecting these ECUs is called the in-vehicle network. Several standards exist for in-vehicle networking. As one of the most mainstream in-vehicle networks, there is a standard called CAN (Controller Area Network) defined by ISO11898-1. [0004] In CAN, the communication path consists of two buses, and the ECUs connected to the b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/40H04W12/12B60R16/023G08G1/09H04W12/00H04W4/46G08G1/16G08G1/00
CPCG08G1/09G08G1/22H04L63/1408H04L63/1466H04W4/46H04W12/12H04W12/61H04L12/40H04L2012/40215H04L2012/40273G08G1/096791G08G1/162B60R16/023H04W12/06
Inventor 芳贺智之松岛秀树氏家良浩岸川刚
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA