Patent ID: 8833868
Filing Date: 2014-09-16
Classification: B60T

Abstract:
1. A pneumatically operated vehicle brake system, comprising a first compressed air line having compressed air at a controllable service brake pressure to supply diaphragm parts of brake cylinders with air for a service brake function of the vehicle; and a parking brake device including a second compressed air line having compressed air at an electro-pneumatically controllable parking brake pressure to supply spring brake parts of the brake cylinders with air to provide a parking brake function, the parking brake device further including an air supply inlet supplying the second compressed air line with compressed air to increase the parking brake pressure, and a first air discharge outlet via which air is dischargeable from the second compressed air line to reduce the parking brake pressure, the second compressed air line being pneumatically connectable to the first compressed air line via the first air discharge outlet.