Electric-car controller
First Claim
1. An electric-car controller including a chopper for controlling a speed of a DC motor, and a by-pass contactor for directly applying a DC source voltage to said DC motor, said electric-car controller comprising:
- means for detecting that an acceleration command for the electric-car has reached a certain first specified value or above;
means for detecting that an acceleration of said car has dropped to a certain second specified value or below; and
means for turning on said by-pass contactor when the acceleration command has reached said certain first specified value or above and the acceleration of said car has dropped to said certain second specified value or below.
1 Assignment
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Accused Products
Abstract
The present invention is directed to an electric-car controller comprising a chopper for controlling the speed of a DC motor, a by-pass contactor for applying a DC source voltage directly to the DC motor, means for detecting that an acceleration command has reached a certain specified value or above, means for detecting that the acceleration of the car has dropped to a certain specified value or below, and means for turning on the by-pass contactor when the acceleration command has reached the certain specified value or above and the acceleration of the car has dropped to the certain specified value or below.
35 Citations
7 Claims
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1. An electric-car controller including a chopper for controlling a speed of a DC motor, and a by-pass contactor for directly applying a DC source voltage to said DC motor, said electric-car controller comprising:
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means for detecting that an acceleration command for the electric-car has reached a certain first specified value or above; means for detecting that an acceleration of said car has dropped to a certain second specified value or below; and means for turning on said by-pass contactor when the acceleration command has reached said certain first specified value or above and the acceleration of said car has dropped to said certain second specified value or below. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification