A control method, device, controller and system for fault diagnosis

A technology of fault diagnosis and control method, which is applied in the field of devices, controllers and systems, and control method of fault diagnosis, which can solve problems such as spending a lot of time on false alarm fault troubleshooting, save troubleshooting time, avoid fault false alarm, and improve efficiency effect
CN107992022BActive Publication Date: 2020-09-08BEIJING ELECTRIC VEHICLE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING ELECTRIC VEHICLE
Publication Date
2020-09-08

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Abstract

The invention provides a fault diagnosis control method, a fault diagnosis control device, a controller and a system, and relates to the technical field of motor control. The method includes the steps: acquiring a control command for fault detection of complete vehicle parts; controlling whether to stop fault diagnosis and detection for the complete vehicle parts or not according to the control command. The control command is transmitted by an upper computer. False alarm of faults in the software flash writing process of the complete vehicle parts is avoided, unnecessary troubleshooting time is saved, and working efficiency is improved.
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Description

technical field

[0001] The invention belongs to the technical field of motor control, and in particular relates to a control method, device, controller and system for fault diagnosis. Background technique

[0002] After the vehicle components of the electric vehicle are loaded into the vehicle and connected to the vehicle Controller Area Network (CAN) bus, it is necessary for the host computer to write software for each component through the CAN bus. In the technology, in the process of flashing the software, the fault diagnosis module of the motor controller will still diagnose the faults of each vehicle component, and there will be false alarms, resulting in a lot of time spent on troubleshooting, reducing the loading efficiency and Increased assembly cost. Contents of the invention

[0003] The purpose of the embodiments of the present invention is to provide a control method, device, controller and system for fault diagnosis, so as to solve the problem of spending a l...

Claims

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