VEHICLE COOLING-FAN MOTOR/INVERTER SYSTEM, CONTROL METHOD THEREFOR, AND PROGRAM THEREFOR
2 Assignments
0 Petitions
Accused Products
Abstract
Included are: a motor control device that has a switching element, that converts DC power supplied from a high-voltage power supply into three-phase AC power, and that supplies the three-phase AC power to a three-phase motor; a first control portion that controls the motor control device; an isolated-type CAN driver that is activated by using power supplied from a low-voltage power supply and that exchanges information with a vehicle ECU that is mounted in the vehicle and that is superordinate to a vehicle cooling-fan motor/inverter system; and an isolation portion that electrically isolates a low-voltage system to which power is supplied from the low-voltage power supply from a high-voltage system to which power is supplied from the high-voltage power supply. If a fault in the switching element is detected, the first control portion outputs fault information notifying that there is a fault in control of the three-phase motor to the vehicle ECU via the isolated-type CAN driver.
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Citations
10 Claims
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1-5. -5. (canceled)
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6. A vehicle cooling-fan motor/inverter system that controls a three-phase motor that drives a cooling fan for supplying air to an in-vehicle heat exchanger, comprising:
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a motor control device that has a switching element, that converts DC power supplied from a high-voltage power supply into three-phase AC power, and that supplies the three-phase AC power to the three-phase motor; a first control unit that controls the motor control device; a communication control unit that is activated by using power supplied from a low-voltage power supply and that exchanges information with a second control unit that is mounted in a vehicle and that is on a superordinate side to the vehicle cooling-fan motor/inverter system; and an isolation unit that electrically isolates a low-voltage system to which power is supplied from the low-voltage power supply from a high-voltage system to which power is supplied from the high-voltage power supply, wherein, if a fault in the switching element is detected, the first control unit outputs fault information notifying that there is a fault in control of the three-phase motor to the second control unit via the communication control unit. - View Dependent Claims (7, 8)
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9. A control method for a vehicle cooling-fan motor/inverter system that controls a three-phase motor that drives a cooling fan for supplying air to an in-vehicle heat exchanger,
the vehicle cooling-fan motor/inverter system including: - a motor control device that has a switching element, that converts DC power supplied from a high-voltage power supply into three-phase AC power, and that supplies the three-phase AC power to the three-phase motor;
a first control unit that controls the motor control device;
a communication control unit that is activated by using power supplied from a low-voltage power supply and that exchanges information with a second control unit that is mounted in a vehicle and that is on a superordinate side to the vehicle cooling-fan motor/inverter system; and
an isolation unit that electrically isolates a low-voltage system to which power is supplied from the low-voltage power supply from a high-voltage system to which power is supplied from the high-voltage power supply,the control method comprising outputting, if a fault in the switching element is detected, fault information notifying that there is a fault in control of the three-phase motor to the second control unit via the communication control unit.
- a motor control device that has a switching element, that converts DC power supplied from a high-voltage power supply into three-phase AC power, and that supplies the three-phase AC power to the three-phase motor;
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10. A control program for a vehicle cooling-fan motor/inverter system that controls a three-phase motor that drives a cooling fan for supplying air to an in-vehicle heat exchanger,
the vehicle cooling-fan motor/inverter system including: - a motor control device that has a switching element, that converts DC power supplied from a high-voltage power supply into three-phase AC power, and that supplies the three-phase AC power to the three-phase motor;
a first control unit that controls the motor control device;
a communication control unit that is activated by using power supplied from a low-voltage power supply and that exchanges information with a second control unit that is mounted in a vehicle and that is on a superordinate side to the vehicle cooling-fan motor/inverter system; and
an isolation unit that electrically isolates a low-voltage system to which power is supplied from the low-voltage power supply from a high-voltage system to which power is supplied from the high-voltage power supply,the control program comprising outputting, if a fault in the switching element is detected, fault information notifying that there is a fault in control of the three-phase motor to the second control unit via the communication control unit.
- a motor control device that has a switching element, that converts DC power supplied from a high-voltage power supply into three-phase AC power, and that supplies the three-phase AC power to the three-phase motor;
Specification