Patent ID: 7114786

Claim:
A braking system for a vehicle and trailer system, comprising: (a) a master cylinder operable to hydraulically drive one or more sets of trailer brakes, said master cylinder comprising a bore; (b) a linear actuator comprising an extendible arm, said arm axially aligned with said master cylinder bore; (c) a plurality of transducers in hydraulic communication with said master cylinder; and (d) a controller in communication with said linear actuator and said transducers, and operable to manipulate said linear actuator, said controller comprising a transducer conditioning circuit operable to output an average transducer pressure value and comprising an adder in communication with said transducers to receive input from said transducers, and a divider in communication with said adder to receive input from said adder, and wherein said adder comprises an operational amplifier and said divider comprises at least one resistor.