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:
Jun. 04, 2002
Filed:
Jan. 17, 2001
Katsuya Ikemoto, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Even when a vehicle is rapidly decelerated, an electric power steering apparatus can provide a steering torque corresponding to such a deceleration of the vehicle, so that the vehicle can be steered in a stable manner without a steering wheel being adversely influenced by road surface irregularities. The apparatus includes a vehicle speed detecting unit for detecting a speed of the vehicle, a torque detecting unit for detecting steering torque, a deceleration calculating unit for calculating a deceleration of the vehicle from the vehicle speed detected by the vehicle speed detecting unit, a first assist force calculating unit for calculating a first assist force from the detection results of the vehicle speed detecting unit and the torque detecting unit, a second assist force calculating unit for calculating a second assist force in response to the deceleration calculated by the deceleration calculating unit, and a control unit for applying to the steering system an assist force which is a sum of the first assist force calculated by the first assist force calculating unit and the second assist force calculated by the second assist force calculating unit.