Internal-combustion engines – Combustion chamber means having fuel injection only – Using multiple injectors or injections
Patent
1996-06-27
1997-07-15
Wolfe, Willis R.
Internal-combustion engines
Combustion chamber means having fuel injection only
Using multiple injectors or injections
123436, F02B 312, F02M 4504
Patent
active
056473176
ABSTRACT:
A method for comprehensive integrated control of a compression-ignition internal combustion engine having integral fuel pump-injectors utilizing an electronic control unit is disclosed. The control strategy integrates various functions of engine control including fuel delivery, cooling fan control, engine speed governing and overspeed protection, engine braking, torque control, and vehicle speed diagnostics and control. Cooling fan control is integrated with vehicle speed diagnostics and control as well as fuel delivery to provide an integrated cruise control function which incorporates engine braking. The method also includes improved control over the various engine speed governors while improving idle quality by balancing the power delivered by each of the engine cylinders when at idle. The integrated torque control employs functions to reduce NOx emissions and noise utilizing adaptive fuel delivery timing and a split injection strategy.
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Babcock Douglas J.
Letang Dennis M.
Weisman, II S. Miller
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