Apparatus for controlling an electrical vehicle drive system

Details Apparatus for controlling an electrical vehicle drive system Apparatus for controlling an electrical vehicle drive system

1981-04-06

1984-07-24

Truhe, J. V.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318805, H02P 528

Patent

active

044619880

ABSTRACT:
A torque command proportional to accelerator position is provided at low speeds with a transition to a torque command dependent on accelerator pedal position that varies to provide constant horsepower at high speeds. The transition occurs between constant torque command and torque command providing constant power at decreasingly lower speeds with decreasing accelerator pedal position. The torque command provides the control input to a traction motor for an electric vehicle.

REFERENCES:
patent: 3551779 (1970-12-01), Campbell
patent: 3838322 (1974-09-01), Greenwell
patent: 3899725 (1975-08-01), Plunkett
patent: 4158163 (1979-06-01), Eriksen et al.
patent: 4281276 (1981-07-01), Cutler et al.
patent: 4322671 (1982-03-01), Kawada et al.
Plunkett, A. B., "A Current Controlled PWM Transistor Invertor Drive," IEEE Transactions, 1979, IAS 79:27B, pp. 785-792.
Eisenhaure, David et al., "A High Efficiency Controlled Slip Induction Motor Drive for Electric Vehicles," The Fourteenth Intersociety Energy Conversion Engineering Conf., 8/5/79, p. 627.

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