CN-121989709-A - Whole-vehicle anti-slip control method for 4DHT hybrid gearbox

Abstract

A control method for preventing a 4DHT hybrid gearbox from sliding on a whole vehicle comprises the steps of collecting input signals, enabling the signal input processing module to be responsible for preventing a manual brake system, a high-voltage system and a motor control system from sliding on the whole vehicle, enabling the manual brake system, the driving motor rotating speed control and the electronic pump control to form a lock stop mode to ensure the anti-sliding function in a priority mode, and enabling the whole control model to pass through three parts according to a control module, outputting a driving motor control mode, a target rotating speed, an electronic pump target rotating speed, electromagnetic valves B1 and B2 target control currents, enabling the three parts of modules to reasonably utilize signals, improving the anti-sliding function of the whole vehicle and improving the safety of the whole vehicle.

Inventors

• QU NING
• JIA LINNA
• WANG XU
• MA NAN
• WANG MEIRONG
• HAN JIAQI
• WANG JUN
• JIANG WENBIN
• HAN TIANLONG
• ZHAO XINGTIAN
• FANG LIHUI
• XIN HAIXIA
• HAO MEIGANG
• LIU ENXIN
• LU YANDONG

Assignees

• 哈尔滨东安汽车发动机制造有限公司
• 哈尔滨东安汽车动力股份有限公司

Dates

Publication Date

20260508

Application Date

20260325

Claims (4)

1. 1. The anti-slip control method for the whole vehicle of the 4DHT hybrid gearbox is characterized by comprising a signal input processing module, an anti-slip processing module and an output module, wherein: The signal input processing module is used for summarizing input signals; The anti-slip processing module is responsible for monitoring the marker bit of the hand brake system and the high-voltage system by the motor control system, carrying out anti-slip control according to priority, and ensuring the anti-slip function in a mode of forming a lock stop bit by the hand brake, the driving motor rotation speed control and the electronic pump control; The output module is used for outputting a control mode of the driving motor, a target rotating speed of the electronic pump and target control currents of the electromagnetic valves B1 and B2 according to the control module.
2. 2. The method for controlling the whole vehicle to avoid sliding of the 4DHT hybrid transmission according to claim 1, wherein the signal input processing module is used for inputting signals mainly including a hand brake signal fault zone bit, a brake fault zone bit, a high-voltage battery fault zone bit, a driving motor fault zone bit, a vehicle speed, an electronic pump fault zone bit and a vehicle gradient acceleration signal.
3. 3. The method for controlling the anti-slip of the whole 4DHT hybrid transmission according to claim 1, wherein the control module control algorithm comprises the step of preventing the driving motor from slipping under the condition of a hand brake or a braking system fault.
4. 4. The method for controlling the whole vehicle to avoid sliding of the 4DHT hybrid transmission according to claim 1, wherein the control module control algorithm further comprises a step of controlling an electromagnetic valve to lock a gear function to realize parking under the condition that a hand brake or a braking system is in fault and a high-voltage battery and a driving motor are in fault.

Description

Whole-vehicle anti-slip control method for 4DHT hybrid gearbox Technical Field The invention belongs to the technical field of whole vehicle control instruments, and particularly relates to a 4DHT hybrid transmission whole vehicle anti-slip slope control method. Background The parking function on the whole vehicle slope is very important for the whole vehicle safety, the control redundancy of a brake system of the whole vehicle is increased, double backups of software/hardware of the brake system are required, the whole vehicle is based on a hybrid 4DHT hybrid box, the electric control system of the traditional AT and the electric vehicle is considered, the safety of the whole vehicle is required to be enhanced by a strategy of the whole control system, and the slope parking function can be realized when the whole vehicle system fails. Disclosure of Invention The purpose of the invention is that: 1) The anti-slip function of hand brake and other faults is realized through the rotation speed control function of the 4DHT driving motor; 2) Under the fault conditions of a hand brake, a driving motor and a high-voltage battery, the vehicle is parked by a method of controlling the clutch oil pressure through a 4DHT electronic oil pump; 3) After the fault is recovered, the conventional clutch recovery condition enables the vehicle to recover the running function by controlling the clutch to be disconnected, and the technical scheme is as follows: The anti-slip control method for the whole vehicle of the 4DHT hybrid gearbox is characterized by comprising a signal input processing module, an anti-slip processing module and an output module, wherein: The signal input processing module is used for summarizing input signals, wherein the signal input processing module mainly comprises a hand brake signal fault zone bit, a brake fault zone bit, a high-voltage battery fault zone bit, a driving motor fault zone bit, a vehicle speed, an electronic pump fault zone bit and a vehicle gradient acceleration signal. The anti-slip processing module is used for carrying out anti-slip control on a hand brake system, a high-voltage system and a motor control system according to the fault monitoring of the marker bit, carrying out anti-slip control according to priority, wherein a hand brake, a driving motor rotating speed control and an electronic pump control form a lock stop mode to ensure the anti-slip function, the driving motor is used for preventing slip under the condition that a control module control algorithm comprises the hand brake or the braking system is faulty, and the electromagnetic valve is controlled to lock the gear function under the condition that the control module control algorithm also comprises the hand brake or the braking system is faulty and the high-voltage battery and the driving motor are faulty, so that parking is realized. The output module is used for outputting a control mode of the driving motor, a target rotating speed of the electronic pump and target control currents of the electromagnetic valves B1 and B2 according to the control module. The invention has the beneficial effects that the whole control model is divided into three parts, namely an input module, a control module and an output module, and the signal is reasonably utilized by the three parts of modules, so that the whole vehicle has perfect anti-slip function, and the safety of the whole vehicle in slip is improved. Drawings FIG. 1 is a modular frame tie of the present invention; fig. 2 is a specific logical block diagram of the present invention. Detailed Description The anti-slip control method for the whole 4DHT hybrid gearbox is characterized by comprising a signal input processing module, an anti-slip processing module and an output module, wherein: The signal input processing module is used for summarizing input signals, wherein the signal input processing module mainly comprises a hand brake signal fault zone bit, a brake fault zone bit, a high-voltage battery fault zone bit, a driving motor fault zone bit, a vehicle speed, an electronic pump fault zone bit and a vehicle gradient acceleration signal. The anti-slip processing module is used for carrying out anti-slip control on a hand brake system, a high-voltage system and a motor control system according to the fault monitoring of the marker bit, carrying out anti-slip control according to priority, wherein a hand brake, a driving motor rotating speed control and an electronic pump control form a lock stop mode to ensure the anti-slip function, the driving motor is used for preventing slip under the condition that a control module control algorithm comprises the hand brake or the braking system is faulty, and the electromagnetic valve is controlled to lock the gear function under the condition that the control module control algorithm also comprises the hand brake or the braking system is faulty and the high-voltage battery and the driving motor are faulty, so that parking i