CONTROL MODULE FOR SINGLE 3/2 SOLENOID CONTROLLED RELAY VALVE.

摘要

In one embodiment, a vehicle braking system (12), for delivering pressurized air to a brake chamber to achieve a desired braking response, includes an air-pressure controlled relay valve (10) for delivering the pressurized air to the brake chamber. A solenoid (26) receives a variable control input pressure and delivers the control input pressure to the relay valve as a function of a state of the solenoid. An ECU (40) controls the solenoid according to a control model for delivering the pressurized air to the brake chamber (38) and achieving the desired braking response.