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Vehicle braking method, braking system and computer-readable storage medium

A vehicle braking and braking pressure technology, which is applied in the direction of braking transmissions, brakes, vehicle components, etc., can solve the problems of high cost and difficulty in popularization, so as to increase the speed of pressure building, make up for cost constraints, and alleviate the delay of pressure building problem effect

Active Publication Date: 2022-05-06
TIANJIN SOTEREA AUTOMOTIVE TECH LMITED CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing control-by-wire pneumatic brake system basically adopts the form of multi-proportional valve and multi-pressure sensor (including the form of the bridge module) to achieve the above safety control objectives, the cost is high, and it is difficult to realize the promotion on commercial vehicles

Method used

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  • Vehicle braking method, braking system and computer-readable storage medium
  • Vehicle braking method, braking system and computer-readable storage medium
  • Vehicle braking method, braking system and computer-readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 It is a flow chart of a vehicle braking method provided by this embodiment, and this embodiment is applicable to wheel braking during vehicle running. The method can be carried out by a vehicle braking device, which can consist of software and / or hardware and is generally integrated in an electronic device.

[0029] see figure 1 As shown, the above-mentioned vehicle braking method includes the following steps:

[0030] S110, according to the driver's brake pressure request value acting on the axle, the pressure request value acting on the axle based on the brake-by-wire control algorithm, and the pressure acting on at least one wheel on the axle based on the differential braking control algorithm The requested value determines the target brake pressure for each wheel.

[0031] Among them, the driver’s brake pressure request value acting on the axle (in P dri,j Indicates that j is the axle number, such as j=1, 2, 3..., which respectively represent the first ...

Embodiment 2

[0092] This embodiment provides a braking system, which can use the above-mentioned vehicle braking method for braking, and thus has at least the same advantages as the above-mentioned braking method.

[0093] The braking system mentioned above is figure 2 As shown, the solid thick line represents the gas passage, and the dotted line represents the control electrical signal. Among them, a is the brake air chamber; b is the proportional valve, a solenoid valve that can realize precise air pressure output according to the electric signal; c is the control unit; d is the air storage tank; e is the service brake, that is, the driver's foot valve; f is the pressure sensor; g is the ABS solenoid valve, which can realize boosting, pressure maintaining and decompression control according to the electric signal; mf is the first integrated bridge module, mr is the second integrated bridge module, and the specific structure of the two integrated bridge modules can be selected according ...

Embodiment 3

[0109] This embodiment provides a computer-readable storage medium, where computer instructions are stored on the medium, and the computer instructions are used to make the computer execute the above method. The computer instructions on the computer-readable storage medium are used to cause a computer to execute the above method, thus having at least the same advantages as the above method.

[0110] The media in the present invention may use any combination of one or more computer-readable media. The medium may be a computer readable signal medium or a computer readable storage medium. A medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (non-exhaustive list) of media include: electrical connection with one or more wires, portable computer disk, hard disk, random access memory (RAM), read only memory (ROM), erasable Programm...

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Abstract

The invention relates to a vehicle braking method, a braking system and a computer-readable storage medium. The vehicle braking method includes: according to the driver's brake pressure request value acting on the axle, the pressure request value acting on the axle based on the brake-by-wire control algorithm, and the differential-based brake acting on at least one wheel on the axle. The pressure request value of the brake control algorithm determines the target brake pressure of each wheel; according to the pressure request value of the brake-by-wire brake control algorithm acting on the axle and the differential brake control of at least one wheel on the axle According to the pressure request value of the algorithm, the boost pressure of the proportional valve is determined; according to the target brake pressure of each wheel and the actual brake pressure of each wheel, the ABS solenoid valve pressure control command is determined; according to the boost pressure of the proportional valve and the The ABS solenoid valve pressure control command is used to perform vehicle braking. The method can realize low-cost and safe braking of vehicles, especially commercial vehicles.

Description

technical field [0001] The present invention relates to the field of vehicle braking, in particular to a vehicle braking method, a braking system and a computer-readable storage medium. Background technique [0002] The air-by-wire air brake system can realize the active control of the brake pressure by the electric signal, and then realize the functions of active braking and deceleration control through the air brake system. The air-by-wire air brake system is the underlying basic execution system for commercial vehicles to realize advanced control functions such as AEB (Autonomous Emergency Braking, automatic emergency braking system), ACC (Adaptive Cruise Control, adaptive cruise system) and automatic driving. The active safety control based on the braking system basically needs to realize the active and independent regulation of the wheel brake pressure. Dynamic braking, and then achieve the desired yaw couple moment, to ensure the stability of the critical state of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/68
CPCB60T13/683
Inventor 徐显杰
Owner TIANJIN SOTEREA AUTOMOTIVE TECH LMITED CO
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