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
Active Publication Date: 2010-08-11
ZF CV SYST EURO BV
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Problems solved by technology
[0009] The known separate configuration of the parking brake regulator and the tractor safety valve has the disadvantage that the tractor safety valve and at least one compressed air line connecting the tractor safety valve to the parking brake regulator must be separately built next to the parking brake regulator
This results in higher costs when the components are manufactured and when they are installed, and is more prone to failure due to the large number of compressed air lines that can leak
This leads to higher costs during maintenance and repairs as well as higher costs due to downtime of the car during repairs
Method used
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Embodiment Construction
[0033] figure 1 A part of a compressed air brake device for a combination vehicle is schematically shown. The figure shows in particular a parking brake regulator 1 with a holding valve 2 integrated therein. The compressed air from the first compressed air storage container 3 and the compressed air from the second compressed air storage container 4 can pass from the first compressed air storage container 3 and the second compressed air storage container 4 through the compressed air pipelines 5 and 6 and parking The compressed air supply inlets 7 and 8 of the brake regulator 1 supply the parking brake regulator 1 . In the parking brake regulator 1 , the double non-return valve 9 supplies the higher pressure in the compressed air lines 5 and 6 to the compressed air line 10 . At the same time, the double non-return valve 9 prevents the compressed air in the parking brake regulator 1 from escaping through the compressed air supply inlets 7 and 8 .
[0034] The compressed air pi...
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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.
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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IPC IPC(8): B60T13/26
CPCB60T13/263B60T7/20B60T13/683
Inventor 亨宁·弗尔斯特约尔格·黑尔默沃尔夫冈·施特拉赫
Owner ZF CV SYST EURO BV
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