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Electro-pneumatic parking brake device with redundant pneumatic control

A brake device and pneumatic control technology, applied in the direction of brake transmission device, hydraulic brake transmission device, control valve and air release valve, etc., can solve the problems of unintuitive driver and complicated structure

Active Publication Date: 2018-07-31
KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the pneumatic brake valve and the reversing valve, on the one hand a more complex structure results
On the other hand, actuating the redundant pneumatic parking brake circuit by means of the foot brake pedal of the service brake system in the event of failure of the preceding electric parking brake circuit is a less intuitive process for the driver

Method used

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  • Electro-pneumatic parking brake device with redundant pneumatic control
  • Electro-pneumatic parking brake device with redundant pneumatic control
  • Electro-pneumatic parking brake device with redundant pneumatic control

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] figure 1 A schematic circuit diagram of a preferred embodiment of the electropneumatic parking brake device 100 according to the invention is shown. The electropneumatic parking brake system 100 is a parking brake component of an electropneumatic brake system of a towing vehicle-trailer combination and is arranged on the towing vehicle. In addition to the parking brake system 100 , an electropneumatic service brake system not shown here, such as the EBS, is a service brake component of the electropneumatic brake system.

[0028] The electropneumatic parking brake control device 1 of the parking brake device 100 is preferably embodied here as a parking brake module or subassembly having a container connection 2 secured by a non-return valve 4 . From this container connection 2 , the container line 6 extends on the one hand to a solenoid valve arrangement 8 with a 2 / 2-way valve 10 as an inlet valve and a 2 / 2-way valve 12 as an outlet valve. The first 2 / 2-way directional...

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PUM

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Abstract

The invention relates to a parking brake device (1) comprising an electrically controllable parking brake circuit with a parking brake actuation device (36) that has at least one parking brake actuation element (37), which interacts with an electric parking brake value transmitter (39) and which can be actuated by the driver, and an electronic controller (14), to which a parking brake signal basedon an actuation of the parking brake actuation element (37) is transmitted by the parking brake value transmitter (39). The electronic controller (14) controls a solenoid valve (10, 12) of a valve device (8, 18) on the basis of the parking brake signal, said valve device being connected to at least one spring accumulator brake cylinder (5) as the parking brake. The parking brake device also comprises a pneumatically actuatable parking brake circuit that is provided as a redundancy and has at least one pneumatic valve (72) which can be actuated by the driver and which pneumatically controls atleast one pneumatically controllable valve (18) of the valve device (8, 18). According to the invention, the at least one pneumatic valve (72) is arranged and designed so as to be mechanically actuatable by the parking brake actuation element (37).

Description

technical field [0001] The invention relates to an electropneumatic parking brake device for a motor vehicle according to the preamble of claim 1 , having an electrically controllable parking brake circuit with at least one parking brake actuating device having at least one parking brake actuating mechanism which interacts with an electric parking brake sensor and which can be actuated by the driver at least in the positions "Park" and "Drive", and An electronic control unit into which the parking brake sensor inputs a parking brake signal related to the operation of the parking brake operating mechanism, wherein the electronic control unit controls the At least one solenoid valve of a valve device which is connected to at least one spring-loaded brake cylinder as a parking brake and has a redundantly arranged, pneumatically controllable parking brake circuit connection, the parking brake The circuit has at least one pilot-operated pneumatic valve, which pneumatically control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T11/10B60T13/68B60T15/04
CPCB60T11/102B60T13/683B60T15/041
Inventor F·黑克尔F·勒特尔M·赫格斯S·黑格
Owner KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH