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. 09, 2010
Filed:
Jun. 10, 2005
Yasuhiro Kaya, Toyota, JP;
Junji Tokieda, Toyota, JP;
Yasuhiro Kaya, Toyota, JP;
Junji Tokieda, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
In response to a coasting drive instruction for measurement of a driving resistance of a hybrid vehicle, the coasting control procedure of the invention prohibits a change of a gear position in a transmission and stops both an engine and a motor MGThe coasting control procedure calculates a canceling torque, which cancels out a torque applied to a ring gear shaft or a drive shaft via a power distribution integration mechanism by generation of an inertia torque accompanied with a rotation speed change of the motor MGThe calculated canceling torque is set to a torque command Tm* of a motor MGand the motor MGis driven and controlled with the torque command Tm*. This arrangement makes the ring gear shaft or the drive shaft completely free and enables accurate measurement of the driving resistance of the hybrid vehicle during such a coasting drive of the hybrid vehicle in a fully non-driving state.