Load Driving Apparatus, Vehicle Incorporating the Same, and Control Method for Load Driving Apparatus
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHideaki Yaguchi
Life of this patent
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Abstract
An ECU estimates an output allowable power of a power storage device based on the temperature and SOC of the power storage device. The ECU also calculates a threshold power based on the power required to start an engine. When the ECU determines that the output allowable power is lower than the threshold power, the up-converter is controlled such that the boosting rate of the up-converter is restricted to be below a prescribed value.
Claims16
A load driving apparatus capable of driving a rotating electric machine having a rotational shaft coupled to an output shaft of an internal combustion engine, comprising:
- a power storage device,
- a boosting device configured to allow boosting of a voltage from said power storage device,
- a driving device receiving an output voltage from said boosting device to drive said rotating electric machine, and
- a control device controlling said boosting device such that a voltage boosting rate by said boosting device is restricted to be below a prescribed value when said rotating electric machine is driven to start said internal combustion engine.
A vehicle comprising:
- an internal combustion engine,
- a rotating electric machine having a rotational shaft connected to an output shaft of said internal combustion engine, and
- a load driving apparatus capable of driving said rotating electric machine,
- said load driving apparatus including
- a power storage device,
- a boosting device configured to allow boosting of a voltage from said power storage device,
- a driving device receiving an output voltage from said boosting device to drive said rotating electric machine, and
- a control device controlling said boosting device such that a voltage boosting rate by said boosting device is restricted to be below a prescribed value when said rotating electric machine is driven to start said internal combustion engine.
A control method for a load driving apparatus capable of driving a rotating electric machine having a rotational shaft coupled to an output shaft of an internal combustion engine, said load driving apparatus including
- a power storage device,
- a boosting device configured to allow boosting of a voltage from said power storage device, and
- a driving device receiving an output voltage from said boosting device to drive said rotating electric machine,
- said control method comprising the steps of:
- determining whether a request to drive said rotating electric machine to start said internal combustion engine is made or not, and
- restricting a voltage boosting rate by said boosting device to be below a prescribed value when determination is made that a request to start said internal combustion engine has been made.
Dependencies are inferred from the claim text.