Boots – shoes – and leggings
Patent
1995-03-06
1996-05-07
Teska, Kevin J.
Boots, shoes, and leggings
36442604, 180197, 303112, B60T 832, B60K 2816
Patent
active
055152791
ABSTRACT:
An electronic traction controller for a vehicle reduces oscillations between a pair of driving wheels which may occur when the the traction controller attempts to control wheel spin of the driving wheels on surfaces which have differing frictional resistances, such as roads partially covered by snow and ice. The traction controller estimates the coefficient of friction beneath each of the driving wheels, and if the frictional resistance of the surfaces beneath each of the driving wheels varies by more than a predetermined amount, or if only one wheel is spinning, a value indicative of the inertia torque of the driving wheel and powertrain combination is determined, and compared against a predetermined value. A slip error value for each of the driving wheels is generated, which is indicative of the difference between the actual rotational speed of the driving wheel and the desired rotational speed of the driving wheel. If the inertia torque is greater than the predetermined value then braking values for the driving wheels to control wheel spin are generated as a function of the slip error value. The braking values are generated such that a first braking value is generated for the driving wheel which has the higher rotational speed of the two driving wheels, and a second braking value is generated for the other driving wheel, with the second braking value resulting in a braking force which is proportional to the first braking value.
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Hrovat Davorin
Simonds Craig J.
Trans Minh N.
Ford Motor Company
Lippa Allan J.
May Roger L.
Nguyen Tan Q.
Teska Kevin J.
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