CPC B60T 8/885 (2013.01) [B60T 8/4036 (2013.01); B60T 8/4095 (2013.01); B60T 13/26 (2013.01); B60T 13/683 (2013.01); B60T 15/027 (2013.01); B60T 17/02 (2013.01); B60T 2270/10 (2013.01); B60T 2270/402 (2013.01)] | 18 Claims |
1. A braking arrangement for a vehicle, comprising:
a source of compressed air;
a drive axle for the vehicle;
a brake associated with the drive axle and connected to the source of compressed air by an air line;
an operator controlled valve in the air line between the source of compressed air and the brake;
a proportioning valve in the air line between the operator controlled valve and the brake;
a compressor driven by the drive axle and having an outlet connected to a control port of the proportioning valve;
a compressor driven by the drive axle and having an outlet connected to a control port of the proportioning valve;
an antilock brake system (ABS) associated with the brake;
a controller, and
means for determining whether the ABS is operating properly and adapted to send a signal to the controller, the controller being configured to start operation of the compressor upon receipt of the signal that the ABS is not operating properly.
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