Vehicle control method, electronic device, and vehicle
By reducing the generator's motor limiting torque to reduce engine load torque before switching from HCU-controlled idle to ECM-controlled idle in hybrid vehicles, the problem of unstable engine speed is solved, and the stability of idle speed control and user experience are improved.
CN120481988BActive Publication Date: 2026-07-24GREAT WALL MOTOR CO LTD
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Patent Information
- Application Number
- CN202510869272.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2045-06-26
AI Technical Summary
Technical Problem
When a hybrid vehicle switches from HCU-controlled idle speed to ECM-controlled idle speed, there is an issue with unstable engine speed control.
Method used
By acquiring vehicle operating information, the target motor limit torque is determined, and the generator's motor limit torque is reduced from the current motor limit torque to the target motor limit torque. This lowers the upper limit of the generator's output torque, thereby reducing the engine's load torque and ensuring engine stability during the switching process.
Benefits of technology
During the idle speed control switching process, fluctuations in engine torque and speed are reduced, improving the user's driving experience.
✦ Generated by Eureka AI based on patent content.
Abstract
The application provides a vehicle control method, an electronic device and a vehicle. When it is determined that there is an idle control switching request, the target motor torque limit is determined by obtaining the running information of the vehicle, and the motor limit torque of the generator is reduced from the current motor limit torque to the target motor limit torque. The idle control switching request is used to request switching from hybrid control unit idle control to engine control module idle control. At this time, reducing the upper limit value of the generator torque is equivalent to reducing the upper limit value of the engine load torque. The smaller value between the current engine request torque and the target motor limit torque is taken as the target engine request torque, so that the engine outputs less load torque. The engine load torque and speed fluctuation are small, which is beneficial to maintaining the stability of the engine idle control. Then, the idle control switching request is executed to switch from HCU idle control to ECM idle control.
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