Method and apparatus for controlling the torque of an engine
AssigneeRobert Bosch GmbH
InventorsPeter Kaltenbrunn, Karl Ott, Bernhard Schray, Ernst Wild
Life of this patent
Estimating the term…
Abstract
The torque of an internal combustion engine is controlled during acceleration by monitoring differences between engine and wheel speed in order to provide a measure of phase differences in the event of the engine torque oscillating. The difference between the engine and wheel signals is integrated and fed to an ignition angle correction circuit in order to damp out the torque oscillations which would otherwise result.
Claims10
A method of controlling a torque of an internal combustion engine of a vehicle, comprising the steps of deriving a signal indicative of a speed of an internal combustion engine of a vehicle;
- deriving a further signal indicative of a wheel speed of the vehicle;
- determining a difference signal between said signal indicative of the speed of the engine and said signal indicative of the wheel speed of the vehicle;
- and varying an ignition angle of an internal combustion engine in response to the determined difference signal to counteract variations in the torque of the internal combustion engine.
An apparatus for controlling a torque of an internal combustion engine of a vehicle, comprising means for deriving a signal indicative of a speed of an internal combustion engine of a vehicle;
- means for deriving a further signal indicative of a wheel speed of the vehicle;
- means for determining a difference signal between the signal indicative of the speed of the engine and the signal indicative of the wheel speed of the vehicle;
- and means for varying an ignition angle of the internal combustion engine in response to the determined difference signal.
Dependencies are inferred from the claim text.