Control module for single 3/2 solenoid controlled relay valve

Details Control module for single 3/2 solenoid controlled relay valve Control module for single 3/2 solenoid controlled relay valve

2008-07-25

2009-08-18

Camby, Richard M. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

C701S083000, C701S091000, C701S038000, C303S118100, C303S113200

Reexamination Certificate

active

07577509

ABSTRACT:
In one embodiment, a vehicle braking system, for delivering pressurized air to a brake chamber to achieve a desired braking response, includes an air-pressure controlled relay valve for delivering the pressurized air to the brake chamber. A solenoid 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 controls the solenoid according to a control model for delivering the pressurized air to the brake chamber and achieving the desired braking response.

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Office Action from Chinese Application No. 200480038526, dated Sep. 7, 2007.

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