Patent ID: 6536408
Filing Date: 2003-03-25
Classification: B60T,B60W,F01L,F02D

Abstract:
An engine brake control system that is integrated with the service brakes for use with a diesel engine, having a plurality of cylinders, for a vehicle having a throttle pedal, a clutch pedal and a brake pedal, the system comprising:an engine brake power selector that is settable to select one of a plurality of levels of engine brake power; an engine brake mode selector that is settable to select a first mode of engine brake control system operation when no engine braking is desired, to select a second mode thereof when engine braking is activated by the throttle pedal only and engine brake power is determined by the engine brake power selector setting, and to select a third mode thereof when combined service braking and engine braking are used and engine brake power is activated and determined by brake pedal displacement but limited by the engine brake power selector setting; a brake pedal position sensor responsive to the position of the brake pedal to generate a brake pedal position signal representative thereof; and an engine computer having a plurality of inputs and outputs, to the computer inputs there being communicated electric energy as a function of the setting of the engine brake mode selector, the setting of the engine brake power selector, and the setting of the brake pedal position sensor switch, the computer determining from the electric energy communicated to the inputs thereof the engine brake mode selected and the level of engine brake power selected, and the computer responding based upon the brake control logic by generating output signals to the computer outputs to direct the initiation of engine brake mechanisms and to provide the level of engine brake power selected.