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Electronically controllable pneumatic braking system in a commercial vehicle and method for electronically controlling a pneumatic braking system in a commercial vehicle

A technology of pneumatic braking and mode control, which can be applied in the direction of braking control system, ABS control system, braking transmission device, etc., and can solve the problems of increasing installation cost and so on.

Active Publication Date: 2021-08-06
WABCO EURO BVBA SPRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is that a very large number of additional components are required in order to retrofit an existing pneumatic parking brake, for example the pneumatic implementation of the actuation of the 3 / 2-way valve, which additionally increases the retrofitting costs

Method used

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  • Electronically controllable pneumatic braking system in a commercial vehicle and method for electronically controlling a pneumatic braking system in a commercial vehicle
  • Electronically controllable pneumatic braking system in a commercial vehicle and method for electronically controlling a pneumatic braking system in a commercial vehicle
  • Electronically controllable pneumatic braking system in a commercial vehicle and method for electronically controlling a pneumatic braking system in a commercial vehicle

Examples

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Embodiment Construction

[0043] specific implementation plan

[0044] in accordance with Figure 1a with Figure 1b In the embodiment of the present invention, a cross-sectional view of an electro-pneumatic braking system 100 of a vehicle 200 is shown in block diagram form, wherein the electro-pneumatic braking system is designed as an EBS braking system 100, that is, in standard operation Ways to implement braking regulations. For this purpose, EBS braking system 100 has four wheel brakes 1 , 2 , 3 , 4 which serve to brake wheels 5 , 6 , 7 , 8 of vehicle 200 . Three brake circuits A, B, C are provided for braking, to which pressure medium reservoirs 20A, 20B, 20C are assigned correspondingly, in order to supply the respective brake circuits A, B, C with a reserve pressure medium 27 and thus realize the respective Wheel brakes 1, 2, 3, 4 build up brake pressures p1, p2, p3, p4, pPB.

[0045] In a first service brake circuit A, wheel brakes 1 , 2 are mounted on wheels 5 , 6 of front axle VA, wherein...

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Abstract

The invention relates to an electronically controllable pneumatic braking system (100) in a vehicle (200), comprising at least: wheel brakes (1, 2, 3, 4), wherein at least one axle (HA, The wheel brakes (3, 4) of VA) have spring accumulator cylinders (3a, 4a), and the pneumatic brake system also has an electronically controlled monostable bypass valve (16), wherein the monostable bypass valve The bypass valve (16) is arranged between the manually actuatable parking brake valve (15) and the spring accumulator cylinder (3a, 4a) in such a way that the monostable bypass valve (16) - In position (Z1) a bypass control pressure (p16) is provided for achieving a manually predetermined parking brake force (fPBm) in a manner dependent on the operating pressure (p15) generated by the parking brake valve (15); - in In the second switching position, the bypass control pressure (p16) is provided in a manner dependent on the exhaust gas pressure (pE) present in the bypass exhaust port (16c) for achieving an electrically predetermined parking brake force (fPBe) , wherein the parking brake-brake pressure (pPB) assigned to the spring accumulator cylinder (3a, 4a) can be adjusted as a function of the corresponding bypass control pressure (p16), and wherein the monostable bypass valve (16) Automatic transition into the first switching position (Z1) in the event of no electrical actuation.

Description

technical field [0001] The invention relates to an electronically controllable pneumatic braking system in a commercial vehicle and to a method for electronically controlling a pneumatic braking system. Background technique [0002] In vehicles with a pneumatic brake system, in particular commercial vehicles, the electronic axle modulator can be actuated by the control unit (ECU) in order to provide the brake pressure. In this case, electronic actuation takes place either as a function of the driver's desire predetermined by the foot brake valve or as a function of an automatically predetermined vehicle target delay. The corresponding brake pressure is generated pneumatically by the axle modulator, which is assigned to the brake cylinders of the working brakes of the brake system. [0003] Alternatively, the axle modulators can also be actuated pneumatically, in particular, the foot brake valves prescribe to the axle modulators a control pressure corresponding to the driver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/68B60T13/66
CPCB60T13/662B60T13/683B60T7/12B60T8/17B60T8/94B60T13/268B60T13/385B60T2270/10B60T2270/402B60T2270/403B60W10/184B60W10/188
Inventor 奥利弗·伍尔夫
Owner WABCO EURO BVBA SPRL
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