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Vehicle sensor fault diagnosis method and vehicle control method

A technology of sensor failure and diagnosis method, which is applied in the field of vehicle safety, can solve problems such as loss of vehicle safety control functions, and achieve the effects of improving safety stability, reducing safety threats, and avoiding wrong intervention

Active Publication Date: 2022-06-21
HANGZHOU SOTEREA AUTOMOBILE INTELLIGENT EQUIP LMITED CO
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] AYC (Active Yaw Control System) and RSC (Roll Stability Control System) are the key technologies of the vehicle active safety control system. Control the stability of the vehicle; when the sensor fails, the existing technology can only give the sensor failure sign, neither can the reconstruction and compensation of the fault signal be realized through the fault tolerance of the fault signal, nor can the sensor fault, Let AYC and RSC perform degraded control on the vehicle, causing AYC and RSC to lose the safety control function of the vehicle when the sensor fails

Method used

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  • Vehicle sensor fault diagnosis method and vehicle control method
  • Vehicle sensor fault diagnosis method and vehicle control method
  • Vehicle sensor fault diagnosis method and vehicle control method

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Embodiment Construction

[0022] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application shall have the usual meanings understood by those with ordinary skill in the art to which the present application belongs. "First", "second" and similar words used in the embodiments of the present application do not denote any order, quantity or importance, but are only used to distinguish different components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Words like "connected" or "connected" ...

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Abstract

The present application provides a vehicle sensor fault diagnosis method and a vehicle control method, wherein the vehicle sensor fault diagnosis method includes: obtaining the measurement value of at least one target sensor on the vehicle; using an observer to observe the measurement value of at least one target sensor , obtain the corresponding estimated value; calculate the sequence standard deviation of the measured value of at least one of the target sensors; and calculate the first residual sequence between the estimated value of at least one of the target sensor and the corresponding measured value; according to the The sequence standard deviation and the first residual sequence corresponding to the target sensor are used to perform fault diagnosis on the corresponding target sensor to obtain the fault degree. The embodiment of the present invention can diagnose the fault degree of the vehicle sensor.

Description

technical field [0001] The embodiments of the present application relate to the technical field of vehicle safety, and in particular, to a vehicle sensor fault diagnosis method and a vehicle control method. Background technique [0002] AYC (active yaw control system) and RSC (roll stability control system) are the key technologies of vehicle active safety control system. Based on the measurement of various variables by multiple types of sensors, through the estimation of vehicle state and stability judgment, the realization of Control the stability of the vehicle; when the sensor fails, the existing technology can only give the sensor fault flag, neither can the reconstruction and compensation of the fault signal be realized through the fault tolerance of the fault signal, nor can the sensor fail. Make the AYC and RSC perform degraded control of the vehicle, causing the AYC and RSC to lose their safe control function of the vehicle in the event of a sensor failure. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W50/02B60W50/029
Inventor 徐显杰
Owner HANGZHOU SOTEREA AUTOMOBILE INTELLIGENT EQUIP LMITED CO
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