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Electrical spring-operated parking brake

An energy storage braking, electrical technology, applied in the direction of brakes, brake components, brake transmission devices, etc.

Active Publication Date: 2015-11-11
MAN NUTZFAHRZEUGE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, the problem arises that the electric parking brake can no longer be actuated after the emergency release switch has been actuated, or generally also when the power supply has been removed.

Method used

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  • Electrical spring-operated parking brake
  • Electrical spring-operated parking brake
  • Electrical spring-operated parking brake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0086] first according to figure 1 An electric parking brake system known from the prior art is illustrated schematically in a block diagram. The parking brake system actuates the parking brake via a pressure medium circuit.

[0087] pressure medium circuit figure 1 The part shown in includes the pressure medium storage container 6 which is pneumatically connected to the first connection 13 of the electrically controllable valve device 10 via the supply line 7 and the first parking space arranged in the interior of the driver's cab 1 . Brake actuating unit 2 is electrically connected via lines 3 , 4 to a control unit (not shown) of electropneumatic valve device 10 .

[0088] The valve device 10 is connected to a spring-loaded brake cylinder 18 via a compressed air line 16 . In the present example, the spring-loaded brake cylinder 18 is designed as part of a combination brake cylinder 20 , also called a Tristop cylinder, which is respectively arranged on the wheel axle of the ...

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PUM

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Abstract

The invention relates to an electrical spring-loaded parking brake for a vehicle, preferably for a utility vehicle, comprising a parking brake valve assembly; and at least one spring-loaded brake cylinder via a supply line and the parking brake valve arrangement is connectable to a compressed air source, which is acted upon in the released state of the parking brake device with pressure of the compressed air source on the parking brake valve arrangement and in the inserted state of the parking brake device on the parking brake valve assembly having a pressure sink is connected. The parking brake valve assembly is adapted to be controlled electro-pneumatically in a first mode for inserting the dissolved or pickled condition. The parking brake valve assembly further comprises a muscular force operating element and is further adapted to be dissolved or to insert the inserted state in a second mode using the muscular force operating element pneumatically controlled.

Description

technical field [0001] The invention relates to an electric parking brake device for a vehicle, preferably a commercial vehicle. Background technique [0002] Commercial vehicle brake systems include a running brake system and a parking brake system, which are usually controlled pneumatically or electropneumatically independently of one another. Parking brake systems, hereinafter also referred to as parking brake systems, usually include a spring energy storage brake cylinder (Federspeicherbremszylinder), which brakes the vehicle in its exhausted state, while the parking brake can be braked by spring energy storage The ventilation of the cylinder is released. [0003] The commercial vehicle can also be equipped with a battery disconnect switch, also referred to below as an emergency disconnect switch. With such a battery disconnect switch, one or more batteries can be disconnected from the connected vehicle electrical system, for example in a dangerous situation. Here, th...

Claims

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Application Information

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IPC IPC(8): B60T13/68B60T13/74
CPCB60T13/683B60T13/04B60T13/385B60T17/083
Inventor V.海姆T.霍夫斯泰特W.科兰德H.阿扎哈夫
Owner MAN NUTZFAHRZEUGE AG
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