Vehicle control method, device, vehicle and storage medium

By detecting the rotation direction of the P2 motor and the engine, if negative torque is detected, it is controlled as a preset torque, which solves the problem that the rotation direction of the P2 motor is opposite to that of the engine, resulting in engine damage, and realizes the stability and safety of the system.

CN119218191BActive Publication Date: 2025-03-25ZHANGJIAGANG GREAT WALL MOTOR R&D CO LTD
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Patent Information

Application Number
CN202411756359.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-03-25
Estimated Expiration
2044-12-03

AI Technical Summary

Technical Problem

In hybrid models with P2 architecture, if the rotation direction of the P2 motor is opposite to that of the engine, the engine may be damaged.

Method used

By detecting the target clutch status of the vehicle, obtain the current requested torque and the speed of the P2 motor, determine whether the current speed is in the preset speed range. If it is negative torque, control it to prevent the rotation direction from being reversed.

Benefits of technology

It effectively avoids the rotation direction of the P2 motor being opposite to the rotation direction of the engine, thereby preventing engine damage and improving the stability and safety of the system.

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Abstract

The present application provides a vehicle control method, device, vehicle and storage medium, which relates to the field of vehicle technology. The scheme includes: if the target clutch of the vehicle is detected to be in a closed state, the current requested torque of the vehicle and the current speed of the P2 motor are obtained; whether the current speed is in a first preset speed range; if the current speed is in the first preset speed range, whether the current requested torque is a negative torque; if the current requested torque is a negative torque, the current requested torque is controlled to be a preset torque. This method can avoid the rotation direction of the P2 motor being opposite to the rotation direction of the engine, resulting in engine damage.
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