The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 1981
Filed:
Jan. 05, 1979
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of preventing wheels of a vehicle from skidding in which a wheel-acceleration signal representative of the peripheral acceleration of a wheel is obtained by differentiating a wheel-shaped signal representative of a suitably detected peripheral speed of the wheel. The braking torque applied to the wheel during braking is controlled and held constant when the level of a wheel-acceleration signal is higher than that of a first reference wheel-acceleration signal and lower than that of a second reference wheel-acceleration signal, whereas it is increased when the level of the wheel-acceleration signal is higher than that of the second reference wheel-acceleration signal. A reference wheel-speed signal, representative of a predetermined reference wheel speed, and a reference wheel-deceleration signal are set for comparison with the wheel-speed signal and the wheel-acceleration signal, respectively, and the brake torque is held constant when the level of the wheel-acceleration signal is higher than that of the reference wheel-deceleration signal and lower than that of the second reference wheel-acceleration signal if the level of the wheel-speed signal is lower than that of the reference wheel-speed signal. The brake torque is further controlled to increase when the level of the wheel-acceleration signal is higher than that of the second reference wheel-acceleration signal.