Protecting device of electromobile

Details Protecting device of electromobile Protecting device of electromobile

1994-09-16

1996-01-16

Zanelli, Michael

Boots, shoes, and leggings

318563, 180 658, B60L 304

Patent

active

054853753

ABSTRACT:
An electromobile includes a control device which, receiving as inputs a speed command signal outputted from an accelerator sensor and a present motor speed signal outputted from an encoder, calculates a torque command current corresponding to a difference between the inputs, to thereby control the motor in accordance with the torque command current. A protecting device is provided with includes an accelerator switch for switching an outputting state thereof depending on a presence/absence of the control device of the speed command signal. The control device an abnormality detecting device detects an abnormal state in which the torque command current assumes a value to rotate the motor white the output signal of the accelerator switch indicates that the speed command signal is not generated, and an abnormality processing device controls the motor for a safe operation response to an abnormality output from the abnormality detecting device.

REFERENCES:
patent: 3866702 (1975-02-01), Eastham
patent: 4090114 (1978-05-01), Thompson
patent: 4256196 (1981-03-01), Waddington
patent: 5161634 (1992-11-01), Ichihara et al.
patent: 5294871 (1994-03-01), Imaseki
patent: 5345155 (1994-09-01), Masaki et al.
patent: 5357181 (1994-10-01), Mutoh et al.

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