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A trailer braking control method, system, storage medium and electronic equipment

A brake control and trailer technology, applied in the direction of brakes, brake transmissions, vehicle components, etc., can solve the problems of increasing tail drift, trailer braking, damage to tractor stability, etc., to avoid trailer dumping and improve driving safety. , the effect of improving stability

Active Publication Date: 2022-02-11
LOVOL HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing trailer braking system cannot brake the trailer when the driver slows down the tractor using only the transmission and not the service brakes, even when the driver depresses the service brake There is no guarantee that the tractor will have the same deceleration rate as the trailer. In this case, the momentum of the trailer will be transmitted to the tractor in the form of thrust.
This thrust will damage the stability of the tractor and increase the possibility of tail flicking, especially on steep slopes or slippery ground, which is more dangerous

Method used

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  • A trailer braking control method, system, storage medium and electronic equipment
  • A trailer braking control method, system, storage medium and electronic equipment
  • A trailer braking control method, system, storage medium and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109]In Embodiment 1, when the control system is activated, the gearbox control unit 8 first runs the self-diagnosis function to ensure that each sensor in the system is connected normally and the signal value is within a reasonable range. For example, if the air pressure sensor 4 is lower than the set threshold, the system prompts a low air pressure alarm; if the ABS sensor 11 is open, the system's physical ABS frequency is abnormal. If the proportional solenoid valve 6 is open circuit, it will prompt that the trailer brake solenoid valve is open circuit. If the proportional solenoid valve 6 is short-circuited, it indicates that the trailer brake solenoid valve is short-circuited. When the system has no faults and the self-test passes, the control system starts to execute. The trailer brake system can sense the reduction of the tractor speed through the tractor speed sensor, calculate the target speed, and determine the initial output duty ratio of the proportional solenoid...

Embodiment 2

[0110] Embodiment 2, when the tractor is working with a trailer, the trailer detection sensor 12 will detect the existence of the trailer, at this time the entire control system is activated; at this time the control system starts to execute. The trailer brake system can sense the reduction of the tractor speed through the tractor speed sensor, calculate the target speed, and determine the initial output duty ratio of the proportional solenoid valve 6 through the torque sensor 13 in the gearbox, and then the gearbox control unit 8 can calculate The deceleration of the trailer head is the control target, and the trailer ABS sensor 11 is used as the feedback vehicle speed. On the basis of the initial control duty cycle, the output of the proportional solenoid valve 6 is adjusted through the incremental PID, the initial value of the torque sensor 13 and the solenoid valve 6, and The engine power curve, the installation position of the sensor, and the total mass of the trailer head...

Embodiment 3

[0111] Embodiment 3, when the tractor is working with a trailer, the trailer detection sensor 12 will detect the presence of the trailer, at this time the entire control system is activated, when the control system is activated, the transmission control unit 8 first runs the self-diagnostic function to ensure that the system The connections of each sensor are normal, and the signal value is in a reasonable range. For example, if the air pressure sensor 4 is lower than the set threshold, the system prompts a low air pressure alarm; if the ABS sensor 11 is open, the system's physical ABS frequency is abnormal. If the proportional solenoid valve 6 is open circuit, it will prompt that the trailer brake solenoid valve is open circuit. If the proportional solenoid valve 6 is short-circuited, it indicates that the trailer brake solenoid valve is short-circuited. When the system has no faults and the self-test passes, the control system starts to execute. The trailer brake system ca...

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PUM

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Abstract

The invention discloses a trailer braking control method, system, storage medium and electronic equipment, and relates to the field of braking control. The method includes: step 1, when the first speed value of the trailer head at the current moment is less than the first speed value at the previous moment, determine the target speed range of the trailer; step 2, calculate the second speed value according to the current moment of the trailer Duty ratio, and according to the duty ratio control the pressure applied on the brake hub of the trailer; step 3, repeat step 1 and step 2, until the second speed value is within the target range The present invention can be used between the trailer head and the trailer It provides controlled and coordinated braking force between the tractor and trailer, which means that the braking distance of the tractor with the trailer is actually the same as that of the tractor alone, even if the driver reduces the speed through the transmission, it can also prevent the tractor from being hit by the trailer, thus It greatly improves its stability and avoids the occurrence of trailer dumping, especially on steep slopes or slippery ground, which improves driving safety.

Description

technical field [0001] The invention relates to the field of brake control, in particular to a trailer brake control method, system, storage medium and electronic equipment. Background technique [0002] The existing trailer braking system cannot brake the trailer when the driver slows down the tractor using only the transmission and not the service brakes, even when the driver depresses the service brake There is no guarantee that the tractor will have the same deceleration rate as the trailer. Usually, in this case, the momentum of the trailer will be transmitted to the tractor in the form of thrust. This thrust will damage the stability of the tractor and increase the possibility of tailing, especially on steep slopes or slippery ground, which is more dangerous. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a trailer brake control method, system, storage medium and electronic equipment for the deficiencies ...

Claims

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Application Information

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IPC IPC(8): B60T7/20B60T13/66B60T13/68
CPCB60T7/20B60T13/662B60T13/68
Inventor 季宇杰胡遵强李德芳单坤山
Owner LOVOL HEAVY IND