Regenerative brake device and a power transmission device for el

Details Regenerative brake device and a power transmission device for el Regenerative brake device and a power transmission device for el

1993-03-16

1995-01-03

Graham, Matthew C.

Brakes

Operators

Electric

290 44, 303 20, 318139, 318254, 192 4R, B60L 710

Patent

active

053777913

ABSTRACT:
A regenerative brake device increases its regenerative brake power during high-speed driving, without impairing driveability. A regenerative brake device includes a driving wheel linked with a rotary shaft of an electric motor through a power transmission system and a battery charging circuit provided between the electric motor and a set of batteries. The battery charging circuit is switched OFF and ON to execute the regenerative braking in response to the duty factor of control pulse signals inputted to the battery charging circuit. The duty factor of control pulse signals inputted to the battery charging circuit decreases as the rotational speed of the rotary shaft of the electric motor increases, thereby increasing the braking power within a range that does not exceed a predetermined braking power.

REFERENCES:
patent: 3878913 (1975-04-01), Lionts et al.
patent: 4181366 (1980-01-01), Dobner
patent: 4246988 (1981-01-01), Hoppie
patent: 4544868 (1985-10-01), Murty
patent: 4547678 (1985-10-01), Metzner et al.
patent: 4659149 (1987-04-01), Rumsey et al.
patent: 4671577 (1987-06-01), Woods
patent: 4908553 (1990-03-01), Hoppie et al.
patent: 4962969 (1990-10-01), Davis
Patent Abstracts of Japan, vol. 010, No. 367, Dec. 1986.

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