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:
Jan. 14, 1997
Filed:
Dec. 23, 1994
Tohru Nakaura, Itami, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
An antiskid control apparatus for vehicles having a part-time four-wheel drive mode. The antiskid control apparatus calculates an average front wheel speed and an average rear wheel speed. A difference between the average front wheel speed and average rear wheel speed is determined, and is filtered to obtain a smoothed wheel speed difference value. Based on the value of the smoothed wheel speed difference value, a determination is made whether the vehicle drive state is the two-wheel drive state or four-wheel drive state. The antiskid control of the vehicle is switched between two-wheel control and four-wheel control in accordance with the determined vehicle drive state.