Hybrid vehicle drive control apparatus, and control method of hybrid vehicle drive apparatus and program thereof
First Claim
1. A hybrid vehicle drive control apparatus characterized by comprising:
- an electric power generator mechanically connected to an engine;
a drive motor driven by at least one of an electric current generated by the electric power generator and an electric current supplied from a battery;
battery state detecting means for detecting a battery state of the battery;
target drive motor torque setting means for setting a target torque of the drive motor based on the battery state.
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Abstract
An object of the invention is to provide a hybrid vehicle drive apparatus, a control method of a hybrid vehicle drive apparatus, and a program thereof which are capable of preventing an engine (11) from racing at the time of sharp acceleration of the vehicle and therefore preventing a degraded state of exhaust gas, and therefore increasing the overall output. The invention includes: an electric power generator (16) mechanically connected to the engine (11); a drive motor (25) driven by at least one of an electric current generated by the electric power generator (16) and an electric current supplied from a battery (43); battery state detecting means for detecting a battery state of the battery (43); target drive motor torque setting means (90) for setting a target torque of the drive motor based on the battery state. In this case, the target drive motor torque is set based on the battery state. Therefore, even if the accelerator pedal is greatly depressed so that rapid acceleration is caused and the vehicle speed is sharply increased, the drive motor torque does not increase. Since the electric current supplied to the drive motor (25) does not become great, the battery state does not sharply become low. Therefore, since the generator torque does not become small, but is able to support the engine torque, the engine (11) does not race, so that a sharp increase in the engine rotational speed can be prevented.
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Citations
9 Claims
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1. A hybrid vehicle drive control apparatus characterized by comprising:
- an electric power generator mechanically connected to an engine;
a drive motor driven by at least one of an electric current generated by the electric power generator and an electric current supplied from a battery;
battery state detecting means for detecting a battery state of the battery;
target drive motor torque setting means for setting a target torque of the drive motor based on the battery state. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- an electric power generator mechanically connected to an engine;
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8. A control method of a hybrid vehicle drive apparatus characterized by comprising the steps of:
- generating an electric current by an electric power generator mechanically connected to an engine;
driving a drive motor by at least one of the electric current generated by the electric power generator and an electric current supplied from a battery;
detecting a battery state of the battery; and
setting a target torque of the drive motor based on the battery state.
- generating an electric current by an electric power generator mechanically connected to an engine;
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9. A program of a control method of a hybrid vehicle drive apparatus including an electric power generator mechanically connected to an engine, a drive motor driven by at least one of an electric current generated by the electric power generator and an electric current supplied from a battery, and battery state detecting means for detecting a battery state of the battery, characterized in that a computer functions as target drive motor torque setting means for setting a target torque of the drive motor based on the battery state.
Specification