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:
Mar. 01, 2005
Filed:
Aug. 13, 2001
Akihiro Yanaka, Toyota, JP;
Shoichi Shono, Nishikamo-gun, JP;
Toshiaki Hamada, Okazaki, JP;
Yoshikazu Tachiiri, Chiryu, JP;
Akihiro Yanaka, Toyota, JP;
Shoichi Shono, Nishikamo-gun, JP;
Toshiaki Hamada, Okazaki, JP;
Yoshikazu Tachiiri, Chiryu, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A vehicular parking brake apparatus includes right and left-side brakes connected to an electric motor via a cable and an equalizer, so that the operating forces of the brakes become equal. In this case, the operating forces of the right and left brakes are commonly controlled based on one of the wheels that exhibits a greater rate of slip. Therefore, it is possible to avoid a rate of slip of the right and left wheels from becoming excessively great. The electric motor is controlled taking into account a transfer delay of the cable. Therefore, the slip rates of the right and left wheels can be quickly converged to a proper state. Thus, in a case where a parking brake is operated during the running of the vehicle, the operating force of the parking brake is controlled so that the state of slip of the wheels is a proper state.