MOTOR TORQUE FILTERING CONTROL METHOD AND SYSTEM, AND HYBRID VEHICLE

Title:

MOTOR TORQUE FILTERING CONTROL METHOD AND SYSTEM, AND HYBRID VEHICLE

Document Type and Number:

WIPO Patent Application WO/2022/204993

Kind Code:

A1

Abstract:

The present invention provides a motor torque filtering control method and system, and a hybrid vehicle. The motor torque filtering control method comprises: obtaining a vehicle speed and a motor request torque that is allocated before filtering in a current filtering cycle, and obtaining the motor output torque filtered in the previous filtering cycle; determining the maximum filtering rate Vmax and the minimum filtering rate Vmin according to the motor output torque and the vehicle speed; determining an interpolation coefficient R according to the motor request torque and the vehicle speed, or according to the motor request torque, the vehicle speed, the maximum filtering rate, and the minimum filtering rate, wherein 0≤R≤1; calculating a first filtering gradient M1 according to the formula, M1＝R*Vmax+(1-R)*Vmin; and filtering the motor request torque of a motor according to the first filtering gradient M1. The solution of the present invention can ensure that the vehicle travels smoothly without impacts, thus improving the riding comfort of occupants.

Inventors:

JING JUNCHAO (CN)
LIU YIQIANG (CN)
HUANG WEISHAN (CN)
YANG JUN (CN)
WANG RUIPING (CN)
SCHOLTEN INGO (CN)

Application Number:

PCT/CN2021/084119

Publication Date:

October 06, 2022

Filing Date:

March 30, 2021

Export Citation:

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Assignee:

GEELY HOLDING GROUP CO LTD (CN)
NINGBO GEELY ROYAL ENGINE COMPONENTS CO LTD (CN)
AUROBAY TECH CO LTD (CN)

International Classes:

B60L15/20

Foreign References:

CN108528272A	2018-09-14
CN112440971A	2021-03-05
US6335604B1	2002-01-01
CN111605553A	2020-09-01

Other References: