Vehicle traction control system with fuel control
First Claim
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1. A method of traction control for a vehicle having wheels driven by an engine having fuel injectors for delivering fuel to the engine and a throttle for regulating air flow into the engine, the method comprising the steps of:
- sensing an excessive acceleration spin condition of the wheels;
determining a number of fuel injectors to be disabled to reduce engine torque output to the driven wheels as a predetermined function of a sensed excessive acceleration spin condition;
limiting the determined number of fuel injectors to a maximum number that is a function of the value of a predetermined vehicle operating parameter; and
disabling injection of fuel from the limited determined number of fuel injectors to reduce engine torque output to the driven wheels when an excessive acceleration spin condition is sensed.
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Abstract
In a method of traction control, fuel injectors are selectively disabled to unfuel respective cylinders of an engine to reduce engine torque output. The method provides for limiting the number of cylinders that can be disabled for acceleration spin control based on engine and vehicle operating parameters to improve traction control performance and provide protection for the vehicle catalytic converter.
34 Citations
4 Claims
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1. A method of traction control for a vehicle having wheels driven by an engine having fuel injectors for delivering fuel to the engine and a throttle for regulating air flow into the engine, the method comprising the steps of:
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sensing an excessive acceleration spin condition of the wheels; determining a number of fuel injectors to be disabled to reduce engine torque output to the driven wheels as a predetermined function of a sensed excessive acceleration spin condition; limiting the determined number of fuel injectors to a maximum number that is a function of the value of a predetermined vehicle operating parameter; and disabling injection of fuel from the limited determined number of fuel injectors to reduce engine torque output to the driven wheels when an excessive acceleration spin condition is sensed. - View Dependent Claims (2, 3, 4)
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Specification