Controller apparatus for electric vehicle

Details Controller apparatus for electric vehicle Controller apparatus for electric vehicle

1994-05-19

1995-10-24

DeBoer, Todd

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

361 31, H02H 312

Patent

active

054615313

ABSTRACT:
A controller apparatus for an electric vehicle includes a power supply, a power converting section for converting power supplied from the power supply, a motor which receives an output from the power converting section to drive the electric vehicle; an accelerator opening detector for detecting an accelerator opening; a controller section for controlling said power converting section in response to a detected output from said accelerator opening detector; a current detector for detecting the current supplied to the motor from the power supply; and failure decider for deciding that the controller suffers a failure when the output from the current detector is not smaller than the reference value previously determined in accordance with the accelerator opening, thereby stopping the drive of the motor. In such a structure, the torque not smaller than that required by a driver is produced so that it is possible to prevent the electric vehicle from running away.

REFERENCES:
patent: 3912978 (1975-10-01), Poole
patent: 4680512 (1987-07-01), Melocik
patent: 5293076 (1994-03-01), Fukui
patent: 5306900 (1994-04-01), Hofsass et al.

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