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:
May. 12, 2009
Filed:
Jun. 15, 2004
Takeshi Hoshiba, Toyota, JP;
Mitsuhiro Nada, Toyota, JP;
Takeshi Hoshiba, Toyota, JP;
Mitsuhiro Nada, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
The technique of the invention sets an upper limit torque Tmmax and a lower limit torque Tmmin output from a motor generator, based on input and output restrictions Win and Wout of a battery, a motor electric power demand Pm, an auxiliary machinery electric power demand Pcsm, and a potential loss Ploss (step S). The technique then restricts a target revolution speed Ne* of an engine to make an output torque of the motor generator within a range of the lower limit torque Tmmin to the upper limit torque Tmmax (steps Sto S). This arrangement ensures output of a torque in response to a driver's requirement, while effectively preventing the battery from being charged or discharged excessively.