Automobile equipped with drive motor
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMasaya Yamamoto
Life of this patent
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Abstract
In an automobile equipped with a drive motor, a positive value is set to a distribution factor during EV driving in a first CD mode. During EV driving in a second CD mode (a mode in which driving performance is limited as compared to the first CD mode), a value 0 is set to the distribution factor. First and second boosting converters are controlled such that an electric current (discharge power from the second battery) of a reactor of a second boosting converter when the distribution factor is small becomes smaller as compared to that when the distribution factor is large.
Claims6
An automobile equipped with a drive motor, comprising:
- a first battery;
- a second battery configured to have a rated capacity smaller than a rated capacity of the first battery;
- a first boosting converter configured to supply a power from the first battery to the motor with boosting of a voltage inputted to the first boosting converter;
- a second boosting converter configured to supply a power from the second battery to the motor with boosting of a voltage inputted to the second boosting converter;
- an electronic control unit configured to
- (i) set an execution mode from a plurality of modes including a first mode and a second mode and control the motor on the basis of the execution mode, the first mode being a mode in which the motor is driven in a range having a first output as an upper limit and the second mode being a mode in which the motor is driven in a range having a second output smaller than the first output as an upper limit,
- (ii) control the first boosting converter and the second boosting converter according to the execution mode, and
- (iii) control the first boosting converter and the second boosting converter such that a distribution factor when the execution mode is the second mode becomes smaller than a distribution factor when the execution mode is the first mode, the distribution factor being a ratio of a discharge power of the second battery to a total discharge power of the first battery and the second battery.
Dependencies are inferred from the claim text.