Vehicle drive system
AssigneeMazda Motor Corporation
InventorsAkihiro Furukawa, Seiyo Hirano, Hideki Sanai
Life of this patent
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Abstract
A vehicle drive system includes: a primary drive motor and a secondary drive motor; a battery; a capacitor that is connected in-series with the battery; a first power line that supplies a total aggregate voltage of the battery and the capacitor; a second power line that supplies a battery voltage; and a third power line that supplies a cell voltage. The first power line, the second power line, and the third power line are configured such that the battery voltage is higher than the cell voltage and that the total voltage is higher than the battery voltage.
Claims19
A vehicle drive system mounted on a vehicle, the vehicle drive system comprising:
- a first vehicle drive motor and a second vehicle drive motor;
- a battery that includes plural battery cells connected in series;
- a capacitor that is connected in series with the battery;
- a first power line that supplies a battery voltage supplied from the battery to a first vehicle drive motor;
- and
- a second power line that supplies to a second vehicle drive motor a total aggregate voltage of the battery voltage and a capacitor voltage supplied from the capacitor;
- a third power line that supplies a cell voltage of at least one battery cell of the plural battery cells to on-board electrical equipment of the vehicle, wherein
- the battery voltage being higher than the cell voltage, and
- the total aggregate voltage being higher than the battery voltage.
Dependencies are inferred from the claim text.