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. 02, 2006
Filed:
Mar. 26, 2004
Toshiaki Ishiguro, Chita, JP;
Naoki Yamada, Aichi-ken, JP;
Toshinori Murahashi, Chiryu, JP;
Hiroaki Kato, Toyota, JP;
Toshiaki Ishiguro, Chita, JP;
Naoki Yamada, Aichi-ken, JP;
Toshinori Murahashi, Chiryu, JP;
Hiroaki Kato, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A vehicle weight estimating device includes an acceleration detecting portion, a driving force estimating, a filtered acceleration obtaining means portion for eliminating a low frequency component from the detected acceleration, a filtered driving force obtaining portion for eliminating a low frequency component from the estimated driving force, an acceleration integrating portion for obtaining an acceleration integration, a driving force integrating portion for obtaining a driving force integration, a vehicle weight estimating for estimating the vehicle weight based on the acceleration integration and the driving force integration, a vehicle weight averaging portion for averaging the estimated vehicle weight, a limiter determining portion for setting an limiter initial value, an upper limiter and a lower limiter and setting an initial area framed by each limiter, and a vehicle weight correcting portion for correcting the vehicle weight averaged based on the initial area.