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:
Dec. 11, 2012
Filed:
Dec. 14, 2009
Chyuan-yow Tseng, Pingtung County, TW;
Chiu-feng Lin, Pingtung County, TW;
Li-wen Chen, Pingtung County, TW;
Chyuan-Yow Tseng, Pingtung County, TW;
Chiu-Feng Lin, Pingtung County, TW;
Li-Wen Chen, Pingtung County, TW;
National Pingtung University of Science and Technology, Pingtung County, TW;
Abstract
A transmission assembly for an electric vehicle includes a transmission having an input shaft, an output shaft, and a gear train coupled between the input shaft and the output shaft. A motor includes an output coupled to the input shaft of the transmission. A motor controller is electrically connected to the motor and controls a rotating speed of the motor. A gear controller is electrically connected to the motor controller. The gear controller outputs a speed request signal to the motor controller, and the motor controller controls the rotating speed of the motor based on the speed request signal, allowing smooth engagement between the gear train and the output shaft.