G - Physics – 05 – D
Patent
G - Physics
05
D
341/72
G05D 13/62 (2006.01) B60K 28/16 (2006.01)
Patent
CA 2012590
ADAPTIVE VEHICLE TRACTION CONTROL SYSTEM Abstract of the Invention A traction control system for a vehicle in which the rate of reduction of the torque input to the driven wheels of the vehicle in response to an excessive spin condition is varied as a function of the road surface coefficient of friction. The rate of increase of wheel spin is measured as an indicator of the road surface coefficient of friction and the area of the air intake of the engine is reduced at a rate that is in inverse proportion to the measured rate of increase of wheel spin. The rate of torque reduction is also made a function of the magnitude of wheel spin. The area of the air intake following recovery from an excessive spin condition is increased at a rate that is in inverse proportion to the road surface coefficient of friction.
General Motors Corporation
Gowling Lafleur Henderson Llp
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