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A brake control method, device and system

A technology of braking control and braking system, applied in the direction of braking transmission, braking, transportation and packaging, etc., can solve the problems of poor braking control effect and low safety, etc.

Active Publication Date: 2017-02-08
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a braking control method, device and system to solve the problems of poor braking control effect and low safety in the existing braking control system

Method used

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  • A brake control method, device and system
  • A brake control method, device and system
  • A brake control method, device and system

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Embodiment 1

[0038] Embodiment 1 of the present invention provides a braking control system, which can be applied to vehicle devices such as large-tonnage truck cranes, trucks, etc., such as figure 2As shown, it is a structural schematic diagram of the brake control system according to Embodiment 1 of the present invention. The brake control system may include a brake control device 21 and multiple auxiliary braking systems (such as engine exhaust auxiliary braking system 22, gearbox hydraulic retarding auxiliary braking system 23 and electric eddy current retarding auxiliary braking system 24, etc.) and the braking system including the anti-lock braking system (ie ABS) 25.

[0039] Specifically, such as figure 2 As shown, the brake control device 21 (specifically, it can be a PLC brake control device) can communicate with the corresponding engine exhaust auxiliary braking system 22 (specifically, it can include an engine Exhaust auxiliary brake controller and exhaust brake solenoid val...

Embodiment 2

[0077] The second embodiment of the present invention provides a braking control method, and the method can be applied to vehicle devices such as large-tonnage truck cranes and trucks. image 3 As shown, it is a schematic flowchart of the braking control method according to the second embodiment of the present invention, and the method may include the following steps:

[0078] Step 301 : If it is determined that the braking system has been activated, the accelerator signal is obtained when it is determined that the compressed air pressure value for braking of the braking system is not less than the first preset braking pressure value and the anti-lock braking system is not working and engine speed.

[0079] Specifically, the conditions for the activation of the braking system may be: if a foot braking signal is received, it may be determined that the braking system is activated, wherein the foot braking is a service brake or a foot brake. In addition, the first preset brake p...

Embodiment 3

[0112] Based on the same inventive concept as the second embodiment of the present invention, the third embodiment of the present invention provides a braking control device. For the specific implementation of the braking control device, reference may be made to the relevant description in the second embodiment of the above method, and the repetitions are repeated. No longer. Specifically, as Figure 4 As shown, it is a schematic structural diagram of the braking control device, and the braking control device may specifically include:

[0113] The obtaining unit 41 may be configured to, if it is determined that the braking system has been activated, when it is determined that the value of the compressed air pressure used for braking of the braking system is not less than the first preset braking pressure value, and the anti-lock braking system is not working, Get the throttle signal and engine speed;

[0114] The control unit 42 can be configured to control the engine exhaus...

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Abstract

The invention discloses a braking control method, device and system. In the scheme, the method comprises the following steps: if a braking system is started according to determination, determining whether an engine exhaust auxiliary braking system needs to be controlled to start braking or not according to an acquired accelerator signal and an acquired engine rotating speed when the pressure value of compressed air for the braking system to brake is not smaller than a first preset braking pressure value and an anti-lock braking system does not work according to determination; determining whether the vehicle speed is not smaller than a first preset vehicle speed or not at the intervals of set unit durations from a moment when the engine exhaust auxiliary braking system starts braking; if so, determining braking accelerations within corresponding set unit durations; when the absolute value of the braking acceleration is smaller than a preset braking acceleration according to determination, starting a non-started auxiliary braking system and controlling the currently-started auxiliary braking system to brake. Therefore, the coordinated control of each braking subsystem including each auxiliary braking system in the braking system is realized, and the effect and safety of braking control are enhanced.

Description

technical field [0001] The present invention relates to the technical field of braking control, and in particular, to a braking control method, device and system. Background technique [0002] The performance of the vehicle braking system is an important indicator to measure the driving safety of the vehicle. At present, the main braking method of the vehicle braking system is the foot brake, that is, the service brake or the foot brake. The specific braking process is to control the brake cylinder to drive the brake on the axle by stepping on the brake pedal in the cab. Friction pads (i.e. brake pads) rub against the brake disc or brake drum for braking. However, for large and heavy-duty vehicles such as large-tonnage truck cranes and heavy trucks, when the chassis is fully loaded, due to the large mass of the whole vehicle, the inertia and the braking distance are large during the driving process. Therefore, if a separate foot is used If the brake method is used to brake...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/32B60T13/74
CPCB60T8/32B60T13/74B60T2201/03
Inventor 奉松生
Owner ZOOMLION HEAVY IND CO LTD
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