Method of and apparatus for controlling wheel spin
AssigneeLucas Industries public limited company
InventorDouglas W. Glover
Life of this patent
Estimating the term…
Abstract
A traction control system is provided for controlling wheel spin of a vehicle. The amount of wheel spin is determined for each driven wheel and compared with a threshold. When the threshold is exceeded, drive to the driven wheel is immediately reduced by a predetermined amount. Drive is restored as soon as the wheel spin is brought under control.
Claims10
An apparatus for reducing wheel spin of at least one driven wheel of a vehicle, said apparatus comprising detecting means for detecting wheel spin and spin control means responsive to said detecting means for controlling spin by reducing drive to the at least one driven wheel upon detection by said detecting means of wheel spin exceeding a predetermined threshold, said spin control means being arranged to reduce the drive in accordance with a predetermined function of wheel spin, said predetermined function having a first term which is proportional to wheel spin and a second term which is an integral function relative to the time of wheel spin, said integral function having an initial value when said detecting means detects wheel spin exceeding a predetermined threshold, said initial value corresponding to a predetermined drive reduction.
A method of controlling wheel spin of at least one driven wheel of a vehicle, said method comprising the steps of detecting wheel spin and reducing drive to the at least one driven wheel upon detecting wheel spin greater than a predetermined threshold, said drive reducing step comprising reducing the drive in accordance with a predetermined function of wheel spin, said predetermined function having a first term which is proportional to a wheel spin and a second term which is an integral function relative to the time of wheel spin, said integral function having an initial value when wheel spin exceeding said predetermined threshold is detected, said initial value corresponding to a predetermined drive reduction.
Dependencies are inferred from the claim text.