Method and apparatus for controlling the torque of an engine
First Claim
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1. 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.
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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.
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Citations
10 Claims
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1. 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. - View Dependent Claims (2, 3)
- deriving a further signal indicative of a wheel speed of the vehicle;
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4. 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. - View Dependent Claims (5, 6, 7, 8, 9, 10)
- means for deriving a further signal indicative of a wheel speed of the vehicle;
Specification