초록 ▼

Electronic controls for compression release engine brakes of the type having electrically controlled valves for selectively applying high pressure hydraulic fluid to hydraulic actuators which open exhaust valves in the associated internal combustion engine to produce compression release events in th

Electronic controls for compression release engine brakes of the type having electrically controlled valves for selectively applying high pressure hydraulic fluid to hydraulic actuators which open exhaust valves in the associated internal combustion engine to produce compression release events in the engine. The electronic controls may produce signals for both opening and closing the electrically controlled valves. The electronic controls may monitor various operating conditions of the engine and the vehicle powered by the engine and may automatically modify the timing of the compression release events in accordance with those conditions.

대표청구항 ▼

[ The invention claimed is:] [1.] The method of controlling a compression release engine brake of the type having an electrically operated hydraulic valve for selectively applying high pressure hydraulic fluid to a hydraulic actuator which responds to the application of said high pressure hydraulic

[ The invention claimed is:] [1.] The method of controlling a compression release engine brake of the type having an electrically operated hydraulic valve for selectively applying high pressure hydraulic fluid to a hydraulic actuator which responds to the application of said high pressure hydraulic fluid by opening a valve in an internal combustion engine associated with said engine brake to produce a compression release event in said engine, said method comprising the steps of:monitoring an operating condition of said engine;applying a first electrical signal to said hydraulic valve to open said hydraulic valve at a time based at least in part on said operating condition; andapplying a second electrical signal to said hydraulic valve to close said hydraulic valve at a time based at least in part on said operating condition.