Power output apparatus and method of controlling the same
US5907191A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1997 |
| Grant date | May 25, 1999 |
| Priority date | — |
| Expiry date | Jun 18, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/916
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A power output apparatus 110 includes a planetary gear 120 having a planetary carrier, a sun gear, and a ring gear, an engine 150 having a crankshaft 156 linked with the planetary carrier, a first motor MG1 attached to the sun gear, and a second motor MG2 attached to the ring gear. When the driver steps on an accelerator pedal 164 to change the driving point of the engine 150, the power output apparatus 110 calculates an angular acceleration of the sun gear, calculates a torque used for changing the driving point of the engine 150 by multiplying the angular acceleration by a moment of inertia seen from the first motor MG1 of an inertial system consisting of the first motor MG1 and the engine 150, and drives the second motor MG2 by taking into account the torque. This structure enables a desired torque to be output even in a transient time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.