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Valve unit, brake control device, vehicle brake system and vehicle

A technology of brake control and valve unit, which is applied in the fields of valve devices for controlling enhanced air volume, electronically-controlled pneumatic vehicle braking equipment, and electric-electrical braking control devices. performance effect

Inactive Publication Date: 2009-07-22
WABCO GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this is undesirable because the car can no longer stop reliably in the event of a power outage

Method used

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  • Valve unit, brake control device, vehicle brake system and vehicle
  • Valve unit, brake control device, vehicle brake system and vehicle
  • Valve unit, brake control device, vehicle brake system and vehicle

Examples

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Embodiment Construction

[0032] figure 1 A part of a compressed air brake system 10 of a motor vehicle is shown schematically, in particular an electropneumatic brake control device for controlling the parking brake of the motor vehicle. Such compressed air brake systems are used, for example, on commercial vehicles, trucks or coaches. Such braking systems are used in particular on vehicle traction systems consisting of a tractor and trailer.

[0033] figure 1 Only a few components of brake system 10 are shown which are relevant for understanding the invention. The electronically controlled braking system 10 , that is to say controls the braking pressure metering of the brake cylinders for actuating the wheel brakes provided on the wheels of the vehicle by means of an electric or electronic control unit. The brake cylinder is partly or entirely formed as a combined service and spring-loaded brake cylinder 12 ( figure 1 For reasons of clarity, only one such brake cylinder is shown in , wherein the ...

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Abstract

The invention relates to an electropneumatic brake control device for controlling an air-quantity-boosting valve device (64) which controls a parking brake of a vehicle. The valve unit (86) has a deaeration valve (134) for deaerating a control input (82) of the air-quantity-boosting valve device (64). The invention provides that the deaeration valve (134) is a valve which has three states I, II and III and which is embodied such that, in a first state I, the control input (82) of the air-quantity-boosting valve device (64) can be deaerated in a throttled manner by means of an aperture (162). In a second state II, the control input (82) of the air-quantity-boosting valve device (64) cannot be deaerated. In a third state III, the control input (82) of the air-quantity-boosting valve device (64) can finally be deaerated in an unthrottled manner.

Description

technical field [0001] According to the preamble of claim 1, the invention relates to a valve unit for an electropneumatic brake control device for controlling a valve device for increasing the air volume for controlling a parking brake of a motor vehicle. According to claim 11 , the invention also relates to an electropneumatic brake control device having such a valve unit. According to claim 14, the invention also relates to an electropneumatic vehicle brake system having such a brake control device. According to claim 15 , the invention finally relates to a motor vehicle having such an electropneumatic braking system. Background technique [0002] A valve arrangement of an electropneumatic brake control device for controlling a parking brake of a motor vehicle is known, for example, from DE 103 36 611 A1 or EP 1 571 061 A1. The disclosed brake control devices are used in brake systems which, in addition to service brakes which can be operated by means of a brake pedal, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/68
CPCB60T13/683B60T17/228B60T13/665B60T8/362B60T13/04B60T13/588
Inventor 乌韦·本舍约尔格·黑尔默伯恩德-约阿希姆·基尔维尔弗里德·门泽尔
Owner WABCO GMBH
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