Hybrid vehicle drive motor control method, device, medium and hybrid vehicle

By determining the target intervention torque and priority coordination in hybrid vehicles, and calculating the motor response and initial torque demand, the problem of drive motor torque output fluctuation is solved, thereby improving the vehicle's power performance and driving safety.

CN115675440BActive Publication Date: 2026-05-12GREAT WALL MOTOR CO LTD
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Patent Information

Application Number
CN202110831768.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-07-22
Publication Date
2026-05-12
Estimated Expiration
2041-07-22

AI Technical Summary

Technical Problem

In hybrid vehicles, the torque output of the drive motor fluctuates significantly, affecting the vehicle's driving stability and power performance.

Method used

By determining the target intervention torque from the received intervention torque, and combining the current motor torque of the drive motor and the vehicle's required torque, the motor response intervention torque and the initial motor torque requirement are calculated. The motor torque requirement is then determined, and the drive motor operation is controlled accordingly. The intervention torque source is prioritized, and the torque response of the engine and drive motor is coordinated.

Benefits of technology

It can quickly respond to intervention torque when switching modes, reduce the fluctuation of the vehicle's torque output, and improve the vehicle's power performance and driving safety.

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Abstract

The present disclosure relates to a hybrid vehicle drive motor control method, device, medium and hybrid vehicle to solve the problem of large torque output fluctuation of the drive motor of the hybrid vehicle. It comprises the following steps: determining a target intervention torque from the received intervention torque; determining a motor response intervention torque of the drive motor according to the target intervention torque and the current motor torque of the drive motor; in response to the received control instruction, determining an initial motor torque demand of the drive motor according to the control state of the hybrid vehicle and the whole vehicle demand torque; determining the motor torque demand according to the motor response intervention torque and the initial motor torque demand, and controlling the drive motor to operate with the motor torque demand as the target motor torque. The output fluctuation of the drive motor torque is reduced.
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