MANUAL MODE GEAR SHIFT CONTROL METHOD AND VEHICLE

Title:

MANUAL MODE GEAR SHIFT CONTROL METHOD AND VEHICLE

Document Type and Number:

WIPO Patent Application WO/2023/273704

Kind Code:

A1

Abstract:

The present application relates to a manual mode gear shift control method and a vehicle. The manual mode gear shift control method comprises: a vehicle is driven in a manually controlled M gear, the wheel speed of a driving wheel of the vehicle is obtained as nd, and the wheel speed of a driven wheel is obtained as np; a wheel speed difference Δn is obtained through calculation, wherein Δn=nd-np; it is determined whether the wheel speed difference Δn is greater than a wheel difference threshold ΔnT, if the wheel speed difference Δn is greater, then a slip control strategy is executed, and if not, then it is determined whether the vehicle has driven at a gradient value which is greater than a set gradient threshold within a set time, if the vehicle has driven at a gradient value which is greater than a set gradient threshold within a set time, it is determined whether the number of changes in the driving direction of the vehicle is greater than a set change threshold, if the number of changes in the driving direction of the vehicle is greater than a set change threshold, then an automatic transmission prohibits automatic upshifting, and if not, then the automatic transmission performs gear shift control in the M gear according to a set gear shift control strategy.

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Inventors:

LIU ZHIWEN (CN)
ZHANG XUEFENG (CN)
YANG YUNBO (CN)
LI YAN (CN)
WANG XIAOFENG (CN)
XU JIANNAN (CN)
WU GANG (CN)

Application Number:

PCT/CN2022/094844

Publication Date:

January 05, 2023

Filing Date:

May 25, 2022

Export Citation:

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Assignee:

CHINA FAW CO LTD (CN)

International Classes:

F16H59/46; F16H59/50; F16H59/66; F16H61/16

Foreign References:

CN113464638A	2021-10-01
CN102128257A	2011-07-20
CN103851179A	2014-06-11
JP2011074947A	2011-04-14
US5931762A	1999-08-03

Attorney, Agent or Firm:

BEIJING YZH IP FIRM (CN)

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