Power supply cut off apparatus
First Claim
1. A power supply cut off apparatus for an electrical vehicle, comprising:
- an electric motor for driving said electrical vehicle;
a first power supply circuit for driving said electric motor;
a state detection sensor for detecting a state of said vehicle;
collision diagnosis means for diagnosing a collision state of said vehicle on the basis of a state detection signal output from said state detection sensor; and
power supply opening means for opening said first power supply circuit according to a diagnosis result from said collision diagnosis means.
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Accused Products
Abstract
A power supply cut off apparatus is provided in which a DC power supply voltage supplied from a main power supply is converted into an AC current by an inverter of a driver, and brushless DC motors are driven by the converted current, during normal operation. In the normal operation, an abnormal state of an electrical vehicle, such as collision, is detected by a plurality of sensors, and collision detection signals are supplied to a diagnosis section. The diagnosis section determines whether an actual collision has occurred or detects a state in which a collision is unavoidable on the basis of the collision detection signals and, as a result, supplies a power cutoff signal to a circuit breaker. The circuit breaker cuts off the output of power supply voltage from the main power supply to the driver using relays.
92 Citations
12 Claims
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1. A power supply cut off apparatus for an electrical vehicle, comprising:
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an electric motor for driving said electrical vehicle; a first power supply circuit for driving said electric motor; a state detection sensor for detecting a state of said vehicle; collision diagnosis means for diagnosing a collision state of said vehicle on the basis of a state detection signal output from said state detection sensor; and power supply opening means for opening said first power supply circuit according to a diagnosis result from said collision diagnosis means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A power supply cut off apparatus for an electrical vehicle, comprising:
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an electric motor for driving said electrical vehicle; a power supply for driving said electric motor; output control means for controlling an electrical output from said driving power supply to said electric motor; a state detection sensor for detecting a state of said vehicle; and power supply cut off means for instructing said output control means to stop electrical power output and cutting off said power supply when an abnormal condition is detected based on an output from said state detection sensor. - View Dependent Claims (11, 12)
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Specification