Electric spring accumulator - parking brake

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

Active Publication Date: 2019-08-06
MAN TRUCK & BUS 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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  • Electric spring accumulator - parking brake
  • Electric spring accumulator - parking brake
  • Electric spring accumulator - 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 1The 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...

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PUM

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Abstract

The invention relates to an electric spring accumulator-parking brake device for a vehicle, preferably a commercial vehicle, comprising: a parking brake valve assembly; And at least one spring energy storage brake cylinder, which can be connected to the compressed air source through the supply line and the parking brake valve assembly, the spring energy storage brake cylinder passes through the parking brake in the released state of the parking brake device. The brake valve assembly is acted upon with the pressure of the compressed air source and can be connected to the pressure drop via the parking brake valve assembly in the inserted state of the parking brake device. The parking brake valve assembly is designed for electropneumatically controlling the engagement of the released or engaged state in the first operating mode. The parking brake valve assembly also includes a muscle-actuated actuating element and is also designed for purely pneumatic control of the released or engaged state in the second operating mode using the muscle-actuated actuating element of the placement.

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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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/68B60T13/74
CPCB60T13/683B60T17/083
Inventor V.海姆T.霍夫斯泰特W.科兰德H.阿扎哈夫
Owner MAN TRUCK & BUS AG
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