Patent ID: 11938915
Assignee: VOLVO TRUCK CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. 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 controller; and
means for assessing environment conditions and adapted to send a signal to the controller, the controller being configured to start operation of the compressor upon receipt of a signal that one or more adverse environmental conditions are present.