Electricity: motive power systems – Braking – Dynamic braking
Patent
1994-09-21
1996-11-26
Wysocki, Jonathan
Electricity: motive power systems
Braking
Dynamic braking
318254, H02P 300
Patent
active
055789110
ABSTRACT:
A motor control circuit is disclosed for providing a continuously variable regeneration control. The control circuit includes a microcomputer for generating a power regeneration command signal and a motor command signal, and an armature circuit for use with DC and induction motors. The armature circuit is responsive to the motor command signal for operating the controlled motor in a motor drive mode. The armature circuit is further responsive to the power regeneration command signal for controlling the degree of power regeneration. The armature circuit includes a deadtime generator, responsive to the motor command signal for generating a pair of complementary motor drive signals, the inverted signal of the pair having deadtime. The inverted motor drive signal with deadtime is AND'ed with the power regeneration command signal to produce a power regeneration drive signal. The non-inverted motor drive signal and the power regeneration drive signal are applied to a Class C two-quadrant chopper drive circuit. The chopper circuit alternately and in accordance with these drive signals respectively energizes the motor (motor drive mode) and causes the motor to recharge the battery (power regeneration mode).
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Carter James C.
Impullitti Joseph F.
Chrysler Corporation
Dobrowitsky Margaret A.
Wysocki Jonathan
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