Electropneumatic parking brake modulator for a trailer in a vehicle/trailer combination

A technology of regulators and brakes, applied in the direction of brakes, vehicle parts, automatic starting devices, etc., can solve the problems of high downtime, prone to failure, high cost, etc., to save costs, reduce material expenses, and reduce the susceptibility to failure Effect
CN101801747AActive Publication Date: 2010-08-11ZF CV SYST EURO BV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZF CV SYST EURO BV
Publication Date
2010-08-11

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Abstract

The invention relates to an electropneumatic parking brake modulator for controlling a parking brake mode of brakes of at least one trailer in a vehicle / trailer combination that consists of a towing vehicle and the trailer. The parking brake modulator (1) comprises a valve element (12) for airing and bleeding the spring brake cylinders of the brakes of the trailer. The parking brake modulator (1) further comprises at least one compressed air reservoir inlet (7, 8) for airing at least one compressed air line (10) in the parking brake modulator (1) with compressed air from a compressed air reservoir (3, 4) of the towing vehicle and at least one compressed air reservoir outlet (14) at which a reservoir pressure can be made available for the brakes of the trailer. The parking brake modulator (1) finally comprises at least one compressed air control outlet (17) at which a control pressure can be made available for the brakes of the trailer. In order to increase the cost-effectiveness of such a device, a towing vehicle protection valve (2) is integrated into the parking brake modulator (1), a compressed air line (16) to the at least one compressed air control outlet (17) being automatically blockable in the case of a pressure drop of the reservoir pressure made available for the trailer below a predetermined threshold value.
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Description

technical field

[0001] The invention relates to an electropneumatic parking brake for controlling the parking brake function of the brake of at least one trailer in a combined vehicle consisting of a tractor and trailer according to the preamble of claim 1 Regulator. Background technique

[0002] The parking brake regulator is integrated in the pneumatic or electropneumatic brake system. The parking brake regulator has the advantage that the pneumatic pressure can be controlled and provided for releasing the parking brake by means of the parking brake regulator. Furthermore, combined spring-charged brake cylinders / diaphragm brake cylinders are often designed for actuating the brakes on vehicles. The difference between a combined spring-loaded brake cylinder / diaphragm brake cylinder and a simple brake cylinder that is only used to actuate the service brake is that, in addition to the diaphragm components for the service brake, With spring-charged part for the parking brake...

Claims

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