Electric parking brake for a vehicle

A vehicle and brake cylinder technology, applied in the field of electric parking brakes, can solve the problems of no longer being able to transmit electric control signals, and no longer being able to realize the control of electric parking brakes

Active Publication Date: 2015-11-04
MAN TRUCK & BUS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Here, the problem arises that the electric parking brake can no longer be actuated after the emergency disconnection switch has been actuated or generally also when the power supply fails, since the electric actuation signal can no longer be transmitted.

Method used

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  • Electric parking brake for a vehicle
  • Electric parking brake for a vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0068] figure 1 A first exemplary embodiment of an electric parking brake system with a spring-loaded brake cylinder 3 is explained schematically in a block diagram.

[0069] The spring-loaded brake cylinder 3 has a spring chamber with a spring and a pressure chamber which is pressurized via compressed air lines 12 , 13 but can also be vented. Spring energy storage brake cylinder 3 (wherein figure 1 Only one shown in ) serves as an actuating device to operate the mechanical components of the wheel brakes of the wheels, in particular to engage these mechanical components (deflate the spring-loaded brake cylinder) and / or disengage them ( Spring energy storage brake cylinder ventilation). The spring-loaded brake cylinders 3 can also be designed as combined brake cylinders, ie Tristop cylinders, which are respectively arranged on the wheel axles of the commercial vehicle.

[0070] The parking brake system controls the parking brake via a pressure medium circuit, in order to ill...

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PUM

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Abstract

The invention relates to a parking brake for a vehicle, preferably for a commercial vehicle, including at least a spring energy-storage brake cylinder (3), an electrical controlling first valve gear (4), which is designed according to an electrical control signal, a venting and / or ventilation of the at least one spring energy-storage brake cylinder (3). The parking brake also includes a switchable second valve gear (5), a pneumatic control input (7) and an electric control input (8), which is executed, a venting of the at least one spring energy-storage brake cylinder (3) to take when the pneumatic control input (7), a pneumatic pressure above the predetermined threshold is smaller than one, and if the electric control input (8) no electricity is available.

Description

technical field [0001] The invention relates to an electric parking brake for a vehicle, in particular a commercial vehicle. Background technique [0002] Commercial vehicle brake systems include a service brake system and a parking brake system, which are generally controlled pneumatically or electropneumatically independently of one another. Parking brakes, hereinafter also referred to as parking brakes, spring-charged parking brakes or parking brake devices, generally comprise a spring-charged brake cylinder, which brakes the vehicle in its ventilated state, while the parking brake Release by ventilation of the spring-loaded brake cylinder. [0003] In addition, commercial vehicles may be equipped with emergency shut-off disconnect switches. The slam-shut disconnect switch is typically located in the cab. With such an emergency cut-off short-circuit switch, any voltage suppliers, such as one or more batteries and a generator, can be disconnected from connected on-board...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/68
CPCB60T13/662B60T13/26B60T13/683B60T13/74B60T17/02B60T17/221
Inventor R.伊特林格
Owner MAN TRUCK & BUS AG
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