Circuit breaker device for electric vehicle
First Claim
1. A circuit breaker device for use on an electric vehicle, comprising:
- a high-voltage drive power supply for supplying an electric energy to a load to drive the electric vehicle;
a circuit breaker for cutting off the electric energy supplied from said drive power supply to said load;
sensor means for detecting conditions of the electric vehicle;
control means for controlling operation of said circuit breaker in response to a detected signal from said sensor means;
a low-voltage accessory power supply for energizing accessories on the electric vehicle; and
power supply converting means for converting the electric energy supplied from said drive power supply;
said control means being connected to said accessory power supply and also connected to said drive power supply through said power supply converting means, whereby said control means can be energized at all times by at least one of said accessory power supply and said drive power supply.
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Accused Products
Abstract
A circuit breaker device for use on an electric vehicle has a high-voltage drive power supply for supplying electric energy to a load to drive the electric vehicle, a circuit breaker for cutting off the electric energy supplied from the drive power supply to the load, a sensor assembly for detecting conditions of the electric vehicle, and a controller for controlling operation of the circuit breaker in response to a detected signal from the sensor assembly. The controller is connected to a low-voltage accessory power supply for energizing accessories on the electric vehicle, and also connected to the drive power supply through a power supply converter for converting the electric energy supplied from the drive power supply, so that the controller can be energized at all times by at least one of either the accessory power supply or the drive power supply. The circuit breaker has first and second shunt coils energizable for cutting off the output of the electric energy from the drive power supply and the accessory power supply, the first shunt coil being connected to the drive power supply and the second shunt coil being connected to the accessory power supply.
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Citations
18 Claims
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1. A circuit breaker device for use on an electric vehicle, comprising:
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a high-voltage drive power supply for supplying an electric energy to a load to drive the electric vehicle; a circuit breaker for cutting off the electric energy supplied from said drive power supply to said load; sensor means for detecting conditions of the electric vehicle; control means for controlling operation of said circuit breaker in response to a detected signal from said sensor means; a low-voltage accessory power supply for energizing accessories on the electric vehicle; and power supply converting means for converting the electric energy supplied from said drive power supply; said control means being connected to said accessory power supply and also connected to said drive power supply through said power supply converting means, whereby said control means can be energized at all times by at least one of said accessory power supply and said drive power supply. - View Dependent Claims (2, 13, 14, 18)
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3. A circuit breaker device for use on an electric vehicle, comprising:
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a high-voltage drive power supply for supplying an electric energy to a load to drive the electric vehicle; a circuit breaker having first and second shunt coils for cutting of the electric energy supplied from said drive power supply to said load; sensor means for detecting conditions of the electric vehicle; control means for controlling operation of said circuit breaker in response to a detected signal from said sensor means; and a low-voltage accessory power supply for energizing accessories on the electric vehicle; said first shunt coil being connected to said drive power supply, and said second shunt coil being connected to said accessory power supply. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 15, 16, 17)
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Specification