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:
Aug. 25, 2015
Filed:
Oct. 24, 2011
Yoshimoto Matsuda, Kobe, JP;
Hirohide Matsushima, Kobe, JP;
Yoshimoto Matsuda, Kobe, JP;
Hirohide Matsushima, Kobe, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, JP;
Abstract
An electric vehicle comprises a motor controller for controlling an electric motor to execute a control routine to perform torque control when the driving power transmission path is detected to be in the driving power transmission state, and executes a control routine to perform rotational speed control, when the driving power transmission path is detected to be in the driving power cut-off state; wherein in the rotational speed control, an angular velocity of an upstream rotary member gets close to an angular velocity of a downstream rotary member; wherein when shifting from the driving power cut-off state to the driving power transmission state, the motor controller switches the rotational speed control to the torque control after performing predetermined transit control; and wherein a change rate of the torque output is made less in the transit control than in the torque control.