Bench verification method for drive system fast recovery control strategy and related equipment

By simulating the fast recovery control strategy of electric vehicle drive system faults using a motor bench, and simulating high-voltage and low-voltage power supply states using a battery simulator and a programmable power supply, the fast recovery control strategy of the motor controller is verified. This solves the problems of incomplete verification and high risk in existing technologies, and achieves efficient and safe verification results.

CN122194948APending Publication Date: 2026-06-12BEIJING HAINACHUAN AUTOMOTIVE PARTS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING HAINACHUAN AUTOMOTIVE PARTS
Filing Date
2026-03-04
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In existing technologies, the verification of fast recovery control strategies for electric vehicle drive systems is mostly limited to model simulation, which cannot simulate real high voltage, high current or complex load conditions. Real vehicle testing is difficult to be safe and controllable, and is costly and time-consuming.

Method used

A motor test bench, including a battery simulator, a programmable power supply, and a load simulator, was used to simulate the target hardware fault triggering conditions, monitor key state variables, and verify the logical correctness of the fault fast recovery enable, process, and confirmation modules in the fast recovery control strategy.

Benefits of technology

This enables precise and efficient verification of the fast recovery control strategy for electric vehicle drive system faults, shortens the development and verification cycle, and enhances the reliability and safety of the system.

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Abstract

The application relates to the technical field of vehicle driving system testing, in particular to a bench verification method of a driving system fault fast recovery control strategy and related equipment. The method comprises the following steps: providing a motor bench comprising a battery simulator, a programmable control power supply, a motor controller and a load simulator; wherein the battery simulator provides high-voltage direct current for the motor controller, the programmable control power supply provides low-voltage power supply for the motor controller, and the load simulator simulates the load of the motor; on the motor bench, based on the programmable control power supply and the battery simulator, a trigger condition of a target hardware fault is simulated, and the trigger condition is applied to the motor controller to trigger a fast recovery control strategy to be verified in the motor controller; key state variables corresponding to the fast recovery control strategy are monitored, and based on the changes of the key state variables, the logical correctness of a fault fast recovery enabling module, a fault fast recovery process module and a fault confirmation module in the fast recovery control strategy is verified.
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