Patent ID: 9278677
Filing Date: 2016-03-08
CPC Classification: B60T

Claim Text:
1. A controller controlling respective braking pressures at wheels on a vehicle, the controller comprising: a processor electrically communicating with a first switching valve used in a pneumatic braking system on the vehicle, the first switching valve controlling a pneumatic fluid in a first brake chamber for controlling a first of the braking pressures at a first of the wheels, and a second switching valve used in the pneumatic braking system, the second switching valve controlling the pneumatic fluid in a second brake chamber for controlling a second of the braking pressures at a second of the wheels, the processor, during a braking control event, controlling one of the first and second switching valves associated with the higher of the first and second braking pressures to preserve the pneumatic fluid in the respective one of the first and second brake chambers and maintain the higher braking pressure before switching a state of the other switching valve associated with the lower of the braking pressures to increase the pneumatic fluid in the other of the brake chambers and increase the lower braking pressure.