A method and system for anti-shake control of a pure electric vehicle, and an electronically readable storage medium

By controlling the motor speed filter and the characteristic speed change rate, the meshing torque is adjusted in real time, which solves the vibration problem in the gear meshing process of pure electric vehicles, realizes the smoothness and tightness of the meshing process, and reduces the calibration difficulty.

CN115811266BActive Publication Date: 2026-07-21ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
Filing Date
2022-11-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies in pure electric vehicles suffer from vibration issues during gear meshing, especially vibrations caused by improper meshing torque calibration, which cannot be effectively resolved.

Method used

By controlling the filtering of motor speed and the characteristic speed change rate, the meshing torque is adjusted in real time to ensure a smooth meshing process and avoid jitter caused by excessively small or large meshing torque. The motor speed is adjusted by using low-pass filter parameters, and the meshing process is controlled by combining preset characteristic speed and threshold range.

Benefits of technology

This achieves smooth gear meshing, reduces vibration, lowers the workload of calibration engineers, and improves driving comfort and meshing tightness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of pure electric car's anti-shake control method, system and electronic readable storage medium.The motor characteristic speed and characteristic speed change rate are extracted according to the driver's intention and motor operating state, and the engagement torque is adjusted in real time according to the motor characteristic speed and characteristic speed change rate when the motor state is switched, the relative speed of the whole engagement process tooth surface is controlled, the tooth surface experiences acceleration before engagement, deceleration after engagement, and the engagement is completed at a relatively small movement speed.The present application can automatically adjust the engagement torque of the engagement process to reduce the workload of the calibration engineer, control the relative speed of the engagement process tooth surface within a relatively reasonable range, reduce the relative speed of the tooth surface at the moment of engagement completion, reduce the shaking caused by the collision of the tooth surface at the moment of engagement completion, and consolidate the engagement torque to make the engagement tighter and prevent shaking caused by loose engagement when a larger torque is loaded subsequently.
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