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. 07, 2005
Filed:
Jul. 30, 2002
Electric vehicle drive control apparatus, electric vehicle drive control method, and program thereof
Hideki Hisada, Anjo, JP;
Kazuo Aoki, Anjo, JP;
Shitomi Yanagawa, Anjo, JP;
Aisin AW, Anjo, JP;
Abstract
An electric vehicle drive control apparatus has an electric machine; a battery; an inverter that is driven in accordance with a drive signal, and that receives DC current from the battery and produces phase currents, and that supplies the phase currents to the electric machine; a battery voltage detection device that detects the battery voltage; and an electric machine torque restriction processing device that determines whether the battery voltage is higher than a threshold value, and restricts the electric machine torque if the battery voltage is higher than the threshold value. If the battery voltage becomes higher than the threshold value, the electric machine torque is restricted. Therefore, increases in the load on the inverter can be prevented.