Interrelated power delivery controls – including engine control – Plural engines – Electric engine
Reexamination Certificate
2011-03-08
2011-03-08
Estremsky, Sherry L (Department: 3655)
Interrelated power delivery controls, including engine control
Plural engines
Electric engine
Reexamination Certificate
active
07901319
ABSTRACT:
A transmission mechanism including a switching clutch or brake is switchable between a continuously-variable shifting state and a step-variable shifting state, and provides improved fuel economy by a transmission with an electrically variable speed ratio and high power transmitting efficiency by a gear type power transmitting device constructed for mechanical transmission of power. During four-wheel drive vehicle running with second drive wheels driven by a third electric motor, a switching control switches a differential portion to a continuously-variable shifting state, so that an operating speed of a first electric motor operated by an output of an engine as an electric generator is controlled to assure a higher degree of electricity generating efficiency, owing to the differential function of the differential portion, than when the differential portion is placed in a non-continuously-variable shifting state in which first electric motor speed and engine speed are determined by vehicle running speed.
REFERENCES:
patent: 5730675 (1998-03-01), Yamaguchi
patent: 5775449 (1998-07-01), Moroto et al.
patent: 6146302 (2000-11-01), Kashiwase
patent: 7272987 (2007-09-01), Hughes
patent: 698 35 174 (2007-06-01), None
patent: 7 336810 (1995-12-01), None
patent: 11 208297 (1999-08-01), None
patent: 11 217025 (1999-08-01), None
patent: 2000 2327 (2000-01-01), None
patent: 2000 346187 (2000-12-01), None
patent: 2001 112101 (2001-04-01), None
patent: 2001 112113 (2001-04-01), None
patent: 2002 78105 (2002-03-01), None
patent: 2003 301731 (2003-10-01), None
patent: 2004 50910 (2004-02-01), None
Office Action issued Jul. 8, 2010 in German Patent Application No. 112006 001 549.4-51.
Inoue Yuji
Kamada Atsushi
Tabata Atsushi
Estremsky Sherry L
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Toyota Jidosha & Kabushiki Kaisha
Young Edwin A.
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