Engine output control system
OwnerDouglas J. Carlton, Kevin B. Hagenauer +2inventors
InventorsDouglas J. Carlton, Kevin B. Hagenauer, Christopher J. Wichael, David L. Zwetz, II
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Abstract
A engine control system and a method of controlling a torque output of an internal combustion engine is disclosed. The engine control system comprises a torque receiving device operably connected to the engine, a sensor to sense an engine parameter, and an electronic device operably connected to the sensor. The electronic sensor is operable to determine a second engine speed from sensed engine parameters, a droop speed, and a selected one of a plurality of torque maps requiring a minimum amount of fuel. The electronic sensor is also operable to transmit a signal indicative of the second engine speed to a fuel system to control the amount of fuel delivered to the engine.
Claims23
A method of controlling the torque output from an internal combustion engine having at least one torque receiving device operable to receive torque from the engine, comprising:
- determining a first engine speed;
- selecting a one of a plurality of torque-fuel maps requiring a minimum amount of fuel related to the first engine speed;
- determining a droop speed related to the first engine speed and the one of the plurality of torque maps;
- combining the droop speed and the first engine speed;
- and
- obtaining a second engine speed from the droop speed and the first engine speed.
An engine control system to control the torque output from an internal combustion engine, comprising:
- a torque receiving device operably connected to the engine to receive at least a portion of the torque output from the engine;
- a sensor operable to sense an engine parameter, said engine parameter including, but is not limited to at least one of the torque and a first engine speed;
- an electronic device operably connected to the sensor to receive the sensed engine parameters from the sensor, said electronic device being operable to determine an second engine speed based on the sensed engine parameter, a droop speed, and a selected one of a plurality of torque maps requiring a minimum amount of fuel related to the first engine speed, said electronic device being operable to generate a signal indicative of the second engine speed;
- and
- a fuel system operably connected to the electronic device and the engine, said fuel system being operable to receive the signal from the electric device and control the amount of fuel delivered to the engine.
Dependencies are inferred from the claim text.