Electric vehicle drive control apparatus, electric vehicle drive control method, and program thereof
First Claim
1. An electric vehicle drive control apparatus, comprising:
- a drive source;
a battery;
an inverter that is driven in accordance with a drive signal, and that receives a direct current from the battery, and produces a phase current, and supplies the phase current to the drive source;
a battery voltage detection device that detects a battery voltage; and
a drive source torque restriction processing device that determines whether the battery voltage is higher than a threshold value, and restricts a drive source torque if the battery voltage is higher than the threshold value to prevent applying an increase in a voltage to the inverter.
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Abstract
An electric vehicle drive control apparatus has an electric machine; a battery; an inverter that is driven in accordance with a drive signal, and that receives DC current from the battery and produces phase currents, and that supplies the phase currents to the electric machine; a battery voltage detection device that detects the battery voltage; and an electric machine torque restriction processing device that determines whether the battery voltage is higher than a threshold value, and restricts the electric machine torque if the battery voltage is higher than the threshold value. If the battery voltage becomes higher than the threshold value, the electric machine torque is restricted. Therefore, increases in the load on the inverter can be prevented.
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Citations
15 Claims
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1. An electric vehicle drive control apparatus, comprising:
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a drive source;
a battery;
an inverter that is driven in accordance with a drive signal, and that receives a direct current from the battery, and produces a phase current, and supplies the phase current to the drive source;
a battery voltage detection device that detects a battery voltage; and
a drive source torque restriction processing device that determines whether the battery voltage is higher than a threshold value, and restricts a drive source torque if the battery voltage is higher than the threshold value to prevent applying an increase in a voltage to the inverter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electric vehicle drive control method of an electric vehicle drive control apparatus having a drive source;
- a battery; and
an inverter that is driven in accordance with a drive signal, and that receives a direct current from the battery, and produces a phase current, and supplies the phase current to the drive source, the electric vehicle drive control method comprising;detecting a battery voltage;
determining whether the battery voltage is higher than a threshold value; and
restricting a drive source torque if the battery voltage is higher than the threshold value to prevent applying an increase in a voltage to the inverter. - View Dependent Claims (9, 10, 11)
- a battery; and
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12. A program of an electric vehicle drive control method, wherein a computer functions as:
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a battery voltage detection device that detects a battery voltage; and
a drive source torque restriction processing device that determines whether the battery voltage is higher than a threshold value, and for restricting a drive source torque if the battery voltage is higher than the threshold value to prevent applying an increase in a voltage to the inverter. - View Dependent Claims (13, 14, 15)
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Specification