CN-121977068-A - Gear shifting control method and device and electronic equipment

CN121977068ACN 121977068 ACN121977068 ACN 121977068ACN-121977068-A

Abstract

The disclosure provides a gear shifting control method, a gear shifting control device and electronic equipment. The method comprises the steps of distributing torque between a first drive axle and a second drive axle of a vehicle under the condition that a gear shifting requirement exists on a transmission of the first drive axle of the vehicle, reducing motor torque of the first drive axle and improving motor torque of the second drive axle, and performing gear shifting operation on the transmission of the first drive axle based on the motor torque after the torque distribution. According to the method and the device, the power interruption phenomenon in the gear shifting process can be reduced, and the smoothness of the gear shifting process is improved.

Inventors

FU XIAOJING
GUO FENGGANG
ZHAO PENG
CHU HONGYUE
XIE XUEFAN
Tong Meiqi
LU QIANQIAN
LI RENXIA
SUN JINGFU

Assignees

北汽福田汽车股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260205

Claims (10)

1. A shift control method, characterized in that the method comprises: Under the condition that a gear shifting requirement exists on a transmission of a first drive axle of a vehicle, torque distribution is carried out on the first drive axle and a second drive axle of the vehicle so as to reduce motor torque of the first drive axle and improve motor torque of the second drive axle; And performing gear shifting operation on the transmission of the first drive axle based on the motor torque after torque distribution.
2. The method of claim 1, wherein said torque sharing the first drive axle and the second drive axle of the vehicle to reduce motor torque of the first drive axle and increase motor torque of the second drive axle comprises: Acquiring fault information of a motor of the second drive axle, wherein the fault information represents whether the motor of the second drive axle has faults or not; Determining an adjustment torque according to the fault information; reducing a motor torque of the first drive axle based on the adjustment torque; and increasing a motor torque of the second drive axle based on the adjustment torque.
3. The method of claim 2, wherein said determining an adjustment torque based on said fault information comprises: Under the condition that a motor of a second drive axle has no fault, acquiring the required torque and the motor rotating speed of the first drive axle and the required torque and the motor rotating speed of the second drive axle; And calculating the adjustment torque according to the required torque of the first drive axle and the motor rotating speed, and the required torque of the second drive axle and the motor rotating speed.
4. The method according to claim 2, wherein the method further comprises: and taking the preset torque threshold value as the adjustment torque when the adjustment torque is larger than or equal to the preset torque threshold value.
5. The method of claim 2, wherein said determining an adjustment torque based on said fault information comprises: And taking the preset torque as the adjustment torque under the condition that the motor of the second drive axle has faults.
6. The method of claim 5, wherein said torque sharing of said first and second drive axles according to said adjustment torque comprises: Increasing the motor torque of the second drive axle by the preset torque to obtain a target torque, and And distributing the motor torque of the first drive axle according to the target gear of the first drive axle and the target torque.
7. The method according to claim 1, wherein the method further comprises: Executing the step of performing a torque distribution on the first transaxle and the second transaxle of the vehicle to reduce the motor torque of the first transaxle and increase the motor torque of the second transaxle in the case where a shift demand exists for both the transmission of the first transaxle and the transmission of the second transaxle of the vehicle; After the transmission of the first drive axle is shifted, torque distribution is continuously carried out on the first drive axle and a second drive axle of the vehicle, so that motor torque of the second drive axle is reduced, motor torque of the first drive axle is improved, and gear shifting operation is carried out on the transmission of the second drive axle based on the motor torque after the torque distribution.
8. The method according to any one of claims 1 to 7, characterized in that the shift demand is determined by: acquiring a target gear and a current gear of a drive axle; And determining that a gear shifting requirement exists for the drive axle under the condition that the target gear is different from the current gear.
9. A shift control device, characterized in that the device comprises: The distribution module is used for distributing torque between a first drive axle and a second drive axle of a vehicle under the condition that a transmission of the first drive axle of the vehicle has a gear shifting requirement so as to reduce the motor torque of the first drive axle and improve the motor torque of the second drive axle; and the gear shifting module is used for performing gear shifting operation on the transmission of the first drive axle based on the motor torque after the torque distribution.
10. An electronic device, comprising: A processor; A memory; An application program stored in the memory and configured to be executed by the processor, the application program comprising instructions for executing the shift control method of any one of claims 1 to 8.

Description

Gear shifting control method and device and electronic equipment Technical Field The invention relates to the technical field of vehicles, in particular to a gear shifting control method, a gear shifting control device and electronic equipment. Background Techniques exist in the art for controlling vehicle gear shifting. In the existing vehicle gear shift control technology, when a front axle or a rear axle of a vehicle needs to be shifted, power is interrupted due to disconnection of a transmission gear in the shifting process. Therefore, insufficient driving smoothness can be caused, so that poor driving feeling in the gear shifting process can be caused, and even potential safety hazards in the gear shifting process can be caused. Disclosure of Invention Therefore, the disclosure provides a gear shift control method, a gear shift control device and electronic equipment, which can reduce the power interruption phenomenon in the gear shift process and improve the smoothness of the gear shift process. In one aspect, the disclosure provides a shift control method including performing torque distribution on a first drive axle of a vehicle and a second drive axle of the vehicle to reduce motor torque of the first drive axle and increase motor torque of the second drive axle when a shift demand exists for the transmission of the first drive axle, and performing a shift operation on the transmission of the first drive axle based on the motor torque after the torque distribution. In one possible implementation, torque distribution is performed on a first drive axle and a second drive axle of a vehicle to reduce motor torque of the first drive axle and increase motor torque of the second drive axle, including obtaining fault information of a motor of the second drive axle, the fault information representing whether the motor of the second drive axle has a fault, determining an adjustment torque based on the fault information, reducing motor torque of the first drive axle based on the adjustment torque, and increasing motor torque of the second drive axle based on the adjustment torque. In one possible implementation, determining the adjustment torque according to the fault information includes obtaining a required torque and a motor rotation speed of the first drive axle and a required torque and a motor rotation speed of the second drive axle when the motor of the second drive axle is not faulty, and calculating the adjustment torque according to the required torque and the motor rotation speed of the first drive axle and the required torque and the motor rotation speed of the second drive axle. In one possible implementation, the method further includes taking the preset torque threshold as the adjustment torque if the adjustment torque is greater than or equal to the preset torque threshold. In one possible implementation, determining the adjustment torque based on the fault information includes taking the preset torque as the adjustment torque in the event of a fault in the motor of the second drive axle. In one possible implementation, the torque distribution of the first drive axle and the second drive axle according to the adjustment torque includes increasing the motor torque of the second drive axle by a preset torque to obtain a target torque, and distributing the motor torque of the first drive axle according to the target gear of the first drive axle and the target torque. In one possible implementation, the method further comprises the steps of performing torque distribution on the first drive axle and the second drive axle of the vehicle to reduce motor torque of the first drive axle and improve motor torque of the second drive axle in the case that gear shifting requirements exist on the transmission of the first drive axle and the transmission of the second drive axle, performing gear shifting operation on the transmission of the first drive axle based on the motor torque after the torque distribution, and continuing to perform torque distribution on the transmission of the first drive axle and the transmission of the second drive axle to reduce motor torque of the second drive axle and improve motor torque of the first drive axle after the gear shifting of the first drive axle is completed and performing gear shifting operation on the transmission of the second drive axle based on the motor torque after the torque distribution. In one possible implementation, the shift request is determined by acquiring a target gear and a current gear of the drive axle, and determining that the drive axle has a shift request if the target gear and the current gear are different. In another aspect, the disclosure provides a shift control device including a distribution module configured to distribute torque between a first drive axle of a vehicle and a second drive axle of the vehicle when a shift demand exists for the transmission of the first drive axle, to reduce motor torque of the first drive axle and to incr