algorithms that coordinate the variable compression brake with conventional service brakes and gear selection. Specifically, we … integrate the compression brake actuator with the service brakes and design a PI-controller that emulates the driver's actions … on long grades. The controller uses the engine speed measurement to activate the service brakes only when retarding power …

discretely variable compression brakes for a Class 8 Freightliner truck used as a development platform in the California PATH … which was originally designed by the UCLA team for the case of friction brakes only..... …