Torque sensor fault diagnosis methods, systems, terminal equipment and storage media

CN117760624BActive Publication Date: 2026-05-26CHONGQING JINKANG NEW ENERGY VEHICLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING JINKANG NEW ENERGY VEHICLE CO LTD
Filing Date
2023-12-21
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

A malfunctioning vehicle torque sensor may cause abnormal torque output, leading to unexpected acceleration and increasing driving safety risks.

Method used

The system acquires torque-related information in real time by using a preset torque model, calculates the fault signal residuals between the reference torque and the sensed torque, classifies and diagnoses faults based on the trend of residual changes, and corrects faults by adjusting the torque output after diagnosis.

Benefits of technology

It enables online real-time fault diagnosis of torque sensors, and the categorized diagnostic results provide guidance for subsequent torque system control strategies or maintenance, ensuring that the torque control system responds normally to user needs and avoids driving safety accidents.

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Abstract

This application provides a method, system, terminal device, and storage medium for diagnosing torque sensor faults. The method includes the following steps: upon receiving a vehicle's power-on signal, acquiring real-time torque-related information of the vehicle and the induced torque of the torque sensor; inputting the real-time acquired torque-related information into a preset torque model to obtain a real-time reference torque; and then calculating the real-time fault signal residual. When the absolute value of the fault signal residual exceeds a first preset threshold, continuously monitoring the changing trend of the fault signal residual within a first preset time period, and issuing a corresponding fault indication based on the changing trend. The classification and diagnosis results of this solution can provide targeted and effective guidance for the control strategy of the vehicle torque system or the maintenance of the torque sensor, ensuring that the torque control system can normally respond to the user's actual output torque demand and avoiding driving safety accidents.
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