Title:
ELECTRIC VEHICLE AND ELECTRIC-MOTOR CONTROL METHOD AND APPARATUS THEREFOR, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/021543
Kind Code:
A1
Abstract:
The present application belongs to the field of electric vehicles, and particularly relates to an electric vehicle and an electric-motor control method and apparatus therefor, and a storage medium. The electric-motor control method for an electric vehicle in the present application comprises: measuring a relative deformation quantity of a transmission system between a driving gear and a wheel end of an electric motor; when the relative deformation quantity is a first threshold value, determining a first speed difference value between a first driving-gear rotation speed and a first wheel-end conversion rotation speed, wherein the relative deformation quantity being the first threshold value is used for representing that the driving gear starts to be separated from a driven gear of the transmission system, the first driving-gear rotation speed is the rotation speed of the driving gear at the moment when the driving gear is separated from the driven gear, and the first wheel-end conversion rotation speed is a rotation speed, which is obtained by converting the wheel-end rotation speed of an electric vehicle on the basis of a speed ratio at the separation moment; determining the output torque of the electric motor according to the first speed difference value; and according to the output torque, controlling the driving gear to perform a gear approaching operation relative to the driven gear. Therefore, the problem of relatively large vibration and noise occurring in an electric motor and a transmission system is ameliorated or even avoided.
Inventors:
SHEN KEQING (CN)
MA YINGGUO (CN)
CHEN DONG (CN)
CHEN QIMIAO (CN)
LI CHANGLUO (CN)
MA YINGGUO (CN)
CHEN DONG (CN)
CHEN QIMIAO (CN)
LI CHANGLUO (CN)
Application Number:
PCT/CN2023/072460
Publication Date:
February 01, 2024
Filing Date:
January 16, 2023
Export Citation:
Assignee:
ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD (CN)
VIRIDI E MOBILITY TECH NINGBO CO LTD (CN)
GEELY HOLDING GROUP CO LTD (CN)
VIRIDI E MOBILITY TECH NINGBO CO LTD (CN)
GEELY HOLDING GROUP CO LTD (CN)
International Classes:
B60W30/20; B60W10/04; B60W40/10
Domestic Patent References:
| WO2022095991A1 | 2022-05-12 |
Foreign References:
| CN111516695A | 2020-08-11 | |||
| CN113968139A | 2022-01-25 | |||
| JP2012111448A | 2012-06-14 | |||
| CN113119986A | 2021-07-16 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
Download PDF: