Patent ID: 6843351

Claim:
A braking system for the control of vehicle speed, the vehicle including an engine having a first plurality of engine cylinders, an electronic throttle, electrical power source and engine brake adapted to provide engine braking, the system comprising: an electronic control unit, said electronic control unit being in communication with said engine electrical power source, engine throttle and engine brake; and a speed sensor adapted to measure the speed of said vehicle and communicate said measured vehicle speed to said electronic control unit, wherein when said measured vehicle speed is greater than a pre-determined vehicle speed threshold, said electronic control unit disables said engine throttle and applies said engine brake using a second plurality of said engine cylinders, said second plurality of engine cylinders being less than said first plurality of engine cylinders, and wherein when said measured vehicle speed equals said pre-determined vehicle speed, said electronic control unit enables said engine throttle and disengages said engine brake.