Method, device, medium and equipment for wireless diagnosis of electric vehicle motor controller based on uds protocol

A motor controller, electric vehicle technology, applied in general control systems, control/regulation systems, electrical testing/monitoring, etc., can solve problems such as inconvenience in realizing the function of the Internet of Vehicles, and achieve comprehensive diagnostic service functions, good stability, The effect of easy troubleshooting

Active Publication Date: 2021-12-24
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The system did not perform fault diagnosis in accordance with the UDS standard specification during the working process, which would bring inconvenience to the subsequent after-sales maintenance and the realization of the functions of the Internet of Vehicles

Method used

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  • Method, device, medium and equipment for wireless diagnosis of electric vehicle motor controller based on uds protocol

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 As shown, the wireless diagnosis method for electric vehicle motor controller based on UDS protocol in this embodiment adopts the wireless bluetooth communication transmission mode, and the UDS unified diagnosis service rule based on CAN bus establishes a diagnosis communication mechanism with the ECU of the motor controller to read and store Fault information and parameters in the ECU internal storage area, and parsed for troubleshooting. The UDS protocol-based wireless diagnostic method for electric vehicle motor controllers of the present invention establishes communication with the motor controller ECU based on the UDS unified diagnostic service rules of the CAN bus, so that the entire communication mechanism has the characteristics of high speed, safety, and comprehensive diagnostic service functions; In addition, ...

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Abstract

The invention discloses a wireless diagnosis method for a motor controller of an electric vehicle based on the UDS protocol, adopts a wireless communication transmission mode, and establishes a diagnosis communication mechanism with the ECU of the motor controller based on the UDS unified diagnosis service rule of the CAN bus, and reads the data stored in the ECU. Fault information and parameters in the internal storage area, and parsed for troubleshooting. The invention also discloses a wireless diagnostic device, which includes a client and a wireless communication module. The client establishes diagnostic communication with the ECU of the motor controller through the communication module and based on the UDS unified diagnostic service rules of the CAN bus, and reads and stores Fault information and parameters in the ECU internal storage area, and parsed for troubleshooting. The invention also correspondingly discloses a medium and equipment corresponding to the above method. The method, device, medium and equipment of the invention all have the advantages of safe and reliable communication, good stability, improved work efficiency and the like.

Description

technical field [0001] The invention mainly relates to the technical field of electric vehicle testing, in particular to a UDS protocol-based wireless diagnosis method, device, medium and equipment for an electric vehicle motor controller. Background technique [0002] With more and more ECU (Electronic Control Unit) components on the car, each ECU will inevitably have different faults due to the influence of the external environment and the aging of its own components during the long-term use. When a vehicle breaks down for after-sales, it is necessary to quickly read the information of the failed ECU and determine the component and cause of the failure without dismantling the car body or ECU shell. The fault diagnosis function has become an essential function for each ECU. At the same time, when the ECU has defects and faults caused by software or needs to iteratively upgrade the ECU function, the ECU also needs to support the online program update function. [0003] At p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0218
Inventor 刘鹏飞陈建明陈昆席永光杨吉春周成李靖刘靖云陈维王臣
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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