Automobile control method, system, storage medium and vehicle

By implementing a car control method on the controller of new energy vehicles, combining motor speed, vehicle speed, wheel radius and transmission direction to determine the idle mode, and using the PID control algorithm to calculate the motor control parameters, the shortcomings in idle speed and stall control of electric coaches are solved, and driving experience closer to the fuel vehicle and higher control performance are achieved.

CN114834264BActive Publication Date: 2025-03-25JIANGSU HIRAIN AUTOMOTIVE ELECTRONICS CO LTD
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Patent Information

Application Number
CN202210413147.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-04-20
Publication Date
2025-03-25
Estimated Expiration
2042-04-20

AI Technical Summary

Technical Problem

The existing electric coaches have shortcomings in idle speed and off control, and cannot effectively simulate the idle speed characteristics of fuel vehicles, resulting in poor driving experience.

Method used

By implementing a car control method on the controller of a new energy vehicle, the current motor speed value, vehicle speed, wheel rolling radius value and transmission direction of the vehicle are obtained, the current idle mode is judged based on these parameters, and the motor control parameters are calculated using the PID control algorithm to realize the corresponding idle torque output. In addition, the engine shutdown state is controlled by setting the time when the rotation speed is lower than a certain threshold to avoid frequent engine shutdown.

Benefits of technology

This method can be closer to the idle characteristics of fuel vehicles, improve the control performance and driving experience of electric coaches, effectively avoid frequent vehicle shutdown, extend the life of the entire vehicle and optimize control performance.

✦ Generated by Eureka AI based on patent content.
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Abstract

The present specification discloses an automobile control method, system, storage medium and vehicle, wherein the method comprises obtaining a current motor speed value of the vehicle after the vehicle enters a ready state, and comparing the current motor speed value with a preset first threshold value; when the current motor speed value is not greater than the first threshold value and the action signal of the vehicle accelerator pedal is not detected, obtaining the vehicle speed and wheel rolling radius value and transmission direction of the vehicle, and obtaining the current idle mode of the vehicle according to the current motor speed value, vehicle speed, wheel rolling radius value and transmission direction of the transmission; according to the current idle mode of the vehicle, obtaining corresponding motor control parameters, and controlling the motor to output a corresponding idle torque; comparing the current motor speed value with a preset second threshold value, and controlling the vehicle to exit the ready state when the current speed value is not greater than the second threshold value and the motor is not enabled within a preset first interval time period.
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