Title:
CONTROL METHOD AND APPARATUS FOR GEAR SHIFTING IN HYBRID ELECTRIC VEHICLE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/074106
Kind Code:
A1
Abstract:
A control method for gear shifting in a hybrid electric vehicle. The method is applied to a transmission control unit (TCU) (1), and comprises: in response to a received vehicle state sent by a VCU (2) being a braking state or a sliding state, determining a first target torque value; on the basis of the first target torque value, sending, once at an interval of a preset time period and by means of the VCU, a first torque control instruction and a second torque control instruction to a controller first MCU (31) and a controller second MCU (41), respectively; in response to the difference between a received rotational speed of an ISG electric motor (3) that is sent by the VCU and a received rotational speed of a clutch (5) being within a preset speed difference range, sending by means of the VCU a rotational speed control instruction and a gear shift instruction to the controller first MCU and the controller second MCU, respectively; and in response to receiving a TM electric motor (4) gear shifting completion instruction sent by the VCU and on the basis of the first target torque value, sending, once at an interval of a preset time period and by means of the VCU, a third torque control instruction and a fourth torque control instruction to the controller first MCU and the controller second MCU, respectively. Further provided are a control apparatus for gear shifting in a hybrid electric vehicle, and a non-volatile computer-readable storage medium. The control method avoids a lack of torque of a TM electric motor during a gear shifting process, thereby solving the problem of sudden acceleration that may occur in a vehicle during the gear shifting process, ensuring the smoothness of traveling, and optimizing the driving and riding experience of drivers and passengers.
Inventors:
WANG QINGLAI (CN)
QI KEGUANG (CN)
TAO CHENG (CN)
LI DEYU (CN)
LIANG ZHENYANG (CN)
GAO LIJUAN (CN)
QI KEGUANG (CN)
TAO CHENG (CN)
LI DEYU (CN)
LIANG ZHENYANG (CN)
GAO LIJUAN (CN)
Application Number:
PCT/CN2023/121623
Publication Date:
April 11, 2024
Filing Date:
September 26, 2023
Export Citation:
Assignee:
CHERY AUTOMOBILE CO LTD (CN)
International Classes:
B60W20/00; B60W10/11; B60W20/15
Foreign References:
| CN115534926A | 2022-12-30 | |||
| CN106808993A | 2017-06-09 | |||
| CN111098848A | 2020-05-05 | |||
| CN104859638A | 2015-08-26 | |||
| CN106314194A | 2017-01-11 | |||
| CN107023668A | 2017-08-08 | |||
| CN114132319A | 2022-03-04 | |||
| KR20200123298A | 2020-10-29 | |||
| US20200164864A1 | 2020-05-28 |
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: