Electric vehicle

Details Electric vehicle Electric vehicle

1993-05-28

1996-02-06

Johnson, Brian L.

Motor vehicles

Power

Electric

180 651, 318139, B60K 100, B60L 300

Patent

active

054890039

ABSTRACT:
An electric vehicle has a transmission for transmitting a drive force from an electric motor to drive road wheels. The electric motor is controlled to produce a drive force depending on an amount of accelerator control. A target rotational speed is set for the electric motor depending on the amount of accelerator control. The transmission is controlled to rotate the electric motor at the target rotational speed. The target rotational speed is set as a rotational speed at which an energy efficiency of the electric motor is maximum at each of plural amounts of accelerator control below at least a predetermined amount of accelerator control.

REFERENCES:
patent: 3297926 (1967-01-01), Campbell et al.
patent: 3866703 (1975-02-01), Eastham
patent: 4096418 (1978-06-01), Marumoto et al.
patent: 4419610 (1983-12-01), Pollman
patent: 5161634 (1992-11-01), Ichihara et al.
patent: 5253724 (1993-10-01), Prior
patent: 5289890 (1994-03-01), Toyoda et al.
patent: 5365431 (1994-11-01), Minezawa et al.
Communication from European Patent Office Patent Abstract of JP 62-107607 (English language).

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