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:
Nov. 27, 2018
Filed:
Oct. 11, 2016
Akebono Brake Industry Co., Ltd., Chuo-ku, Tokyo, JP;
George Ritter, Flat Rock, MI (US);
AKEBONO BRAKE INDUSTRY CO., LTD., Tokyo, JP;
Abstract
A method that includes steps of measuring voltage and current of the parking brake system during creation of a parking brake apply or release of the parking brake apply. The method includes estimating motor position, motor speed, and a current draw of the motor using the measured voltage and the measured current. The method includes estimating a parking brake force with the estimated motor position. The method includes correcting the estimated motor position, motor speed, and the current draw of the motor with the measured current, and/or correcting the estimated parking brake force with the corrected estimated motor position, corrected motor, and the corrected current draw of the motor. The method includes determining the creation of the parking brake apply with the corrected parking brake force and/or determining release of the parking brake apply with the corrected estimated motor position.