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Method for controlling an electropneumatic parking brake device of a vehicle while driving as an auxiliary brake

A technology of electronic parking brake and brake device, which is applied in the direction of brake transmission device, brake, vehicle parts, etc., and can solve problems such as excessive driving and unstable driving

Active Publication Date: 2018-08-31
KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot be ruled out here that excessive brake slipping or brake locking due to faulty actuation and thus driving instability

Method used

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  • Method for controlling an electropneumatic parking brake device of a vehicle while driving as an auxiliary brake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The drawing schematically shows an electropneumatic parking brake system 1 according to the invention as part of a compressed air system for a vehicle in a preferred embodiment. The compressed air system also includes a pneumatic or electropneumatic service brake system (not shown here).

[0030] The vehicle is here preferably a commercial vehicle, for example a tractor 2 of a tractor-trailer combination, which has a driver's cab 4 arranged on the frame. Arranged in the driver's cab 4 next to the driver is a parking brake actuating device 6 (Hand Control Unit), which has, as a parking brake actuating mechanism 8 Manually swing the joystick to different pivot positions. Instead, of course, any type of parking brake actuating mechanism 8 is possible, for example also in the form of a rocker switch or a combined push / pull switch.

[0031] The parking brake operating mechanism 8 can be adjusted to different positions, in particular a "drive" position, a "park" position, a...

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PUM

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Abstract

The invention relates to a method for controlling an electro-pneumatic parking brake device (1) of a vehicle (2) while driving as an auxiliary brake, wherein the parking brake device (1) has an electronic parking brake control unit (18) and spring brake cylinders (28) which are actuated by compressed air on at least one axle (14). The invention is characterized in that the axle load on at least one axle (14) by way of spring brake cylinders (28) which are actuated by compressed air is determined and then, during the use of the parking brake device (1) while driving as an auxiliary brake, the auxiliary brake pressure for the spring brake cylinders (28) which are actuated by compressed air on the axle (14) is controlled or regulated by way of the electronic parking brake control unit (18) ina manner which is dependent on the axle load which prevails on the axle (14).

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 for controlling an electropneumatic parking brake of a vehicle as an auxiliary brake during driving, wherein the parking brake has a Compressed air operated spring-loaded brake cylinders on at least one axle and electronic parking brake controller. [0002] Furthermore, the invention relates to a compressed air device for a vehicle with an electropneumatic braking system comprising an electropneumatic parking brake with auxiliary braking function according to the preamble of claim 4 . Vehicle braking device, said electropneumatic parking brake device has the following components: compressed air operated spring energy storage brake cylinder on at least one axle; electronic parking brake controller; for operating the parking The parking brake operating unit of the brake, which, within the scope of the auxiliary braking function, inputs the auxiliary braking request signal into the elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/26B60T13/66B60T13/68
CPCB60T13/26B60T13/261B60T13/263B60T13/66B60T13/662B60T13/68B60T13/683
Inventor F·维尔纳
Owner KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH