Electricity: motive power systems – Generator-fed motor systems having generator control – Alternating-current-motor system
Patent
1996-07-22
1998-08-04
Cabeca, John W.
Electricity: motive power systems
Generator-fed motor systems having generator control
Alternating-current-motor system
318146, 180 653, 180 654, 290 40C, 322 14, H02P 766
Patent
active
057898820
ABSTRACT:
A drive control apparatus for an automotive vehicle having an electric motor and an engine operated by combustion of a fuel, the drive control apparatus including a drive source selecting device for selecting an engine drive mode or a motor drive mode on the basis of a first value in the engine drive mode of a physical quantity relating to a condition of the engine and a second value of the same physical quantity reflecting energy conversion efficiencies of the electric motor, an electric generator and an electric energy storage device during an electricity generating mode. The physical quantity is preferably a fuel consumption amount by the engine. The drive control apparatus may also include an engine output determining device that optimizes the efficiency of the system by determining the output of the engine so as to power the vehicle and also provide surplus power to operate the electric generator and charge the electric energy storage device. An enlarging device may also be included to increase the output of the electric motor to prevent excessive charging of the electric energy storage device.
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I.E.E. Proceedings-D/Control Theory & Applications, vol. 134, No. 6, Nov. 1987.
"Fiat Conceptual Approach to Hybrid Cars Design", International Electric Vehicle Symposium, Anaheim, Dec. 5-7, 1994, pp. 458-469.
Hata Hiroshi
Ibaraki Ryuji
Kubo Seitoku
Tabata Atsushi
Taga Yutaka
Cabeca John W.
Toyota Jidosha & Kabushiki Kaisha
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