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:
Feb. 12, 2019
Filed:
Mar. 14, 2016
Ntn Corporation, Osaka, JP;
Yingjie Zhang, Iwata, JP;
NTN CORPORATION, Osaka, JP;
Abstract
In a slip control device for an electric vehicle, a slip control section is provided which is configured to perform, in a control repetition cycle, a series of slip control of determining whether or not a slip state has occurred, on the basis of the number of rotations of a drive wheel and the number of rotations of a driven wheel observed by respective rotation number observation sections and, and decreasing a torque command value to a motor if the slip state has occurred. A vehicle speed detection section configured to detect a vehicle speed and a control repetition cycle change section configured to lengthen the control repetition cycle of the slip control section when the vehicle speed detected by the vehicle speed detection section is in a predetermined low-speed range, are provided.