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:
Apr. 25, 2000
Filed:
Mar. 17, 1999
Shinichiro Kitada, Tokyo, JP;
Shunichi Aoyama, Kanagawa, JP;
Noboru Hattori, Kanagawa, JP;
Isaya Matsuo, Tokyo, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A drive system for a hybrid drive vehicle, comprises a driving mechanism which includes a clutch, an engine connected the clutch, a first motor for generating power, connected to the clutch, a second motor for driving a drive wheel, connected to the clutch, and a transmission connected to the clutch. A third motor is provided for driving a hydraulic pump of a hydraulic system for the transmission. A first inverter is connected between the first motor and a battery, in which charging and discharging between the first motor and the battery being made through the first inverter. A second inverter is connected between the second motor and the battery, in which charging and discharging between the second motor and the battery being made through the second inverter. A third inverter is connected between the third motor and the battery, in which changing and discharging between the battery and the motor being made through the third inverter. A first trouble detecting device is provided for detecting trouble in the first motor and in the first inverter. Additionally, a controller is provided for controlling the engine, the inverters, the transmission and the clutch. The controller is arranged to engage the clutch and to drive the second motor so as to start operation of the engine under firing, in response to the trouble detected by the first trouble detecting device.