Anti-skid control system employing integral-plus-proportional control of pulsed modulation
Patent 3967862 Issued on July 6, 1976. Estimated Expiration Date: 
July 6, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 6, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3131975 3362757 3508795 3584921 3614173 3791701 InventorsAssigneeApplicationNo. 559100 filed on 03/17/1975US Classes:303/150, Specific mu determination180/197, WITH MEANS FOR DETECTING WHEEL SLIP DURING VEHICLE ACCELERATION AND CONTROLLING IT BY REDUCING APPLICATION OF POWER TO WHEEL246/182B, Automatic vehicle-carried braking318/609"Reset" systems (P.I.)ExaminersPrimary: Kunin, Stephen G.Attorney, Agent or FirmAbstractIn an anti-skid type control system for automotive vehicles, apparatus for maintaining wheel slip in a region of values associated with a maximum coefficient of road friction. Periodic modulation of the wheel brake torque in conjunction with wheel acceleration measurement are employed to determine the variation of the coefficient of road friction from an optimum value, while integral-plus-proportional control of the pulse modulation allows compensatory variation of the wheel torque and slip condition to a condition providing the optimum coefficient of road friction. | |
