Drive unit for a hybrid vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsHiroto Hashimoto, Hiroaki Kimura, Tomohito Ono
Life of this patent
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Abstract
A drive unit for a hybrid vehicle that enables downsizing and cost reduction of an oil supply mechanism to be achieved. The drive unit includes: a first feeding line for supplying a first motor and a differential mechanism with oil discharged from a first oil pump; and a second feeding line for supplying a second motor with oil discharged from a second oil pump, the oil being supplied via an oil cooler that cools the oil. A passage between from the second oil pump to the second motor in the second feeding line and a passage between from the first oil pump to the first motor and the differential mechanism in the first feeding line, are independent of each other.
Claims7
A drive unit for a hybrid vehicle, comprising:
- an engine that generates a driving force;
- a first motor having an electric power generation function;
- an output section coupled to a drive wheel;
- a differential mechanism that distributes to the first motor and to the output section the driving force generated by the engine;
- a second motor coupled to the output section and generating a driving force by supply of electric power;
- a first oil pump driven by power of the engine, the first oil pump thereby discharging oil;
- a second oil pump driven by a torque transmitted from the output section, the second oil pump thereby discharging oil;
- a first feeding line for supplying the first motor and the differential mechanism with oil discharged from the first oil pump;
- and
- a second feeding line for supplying the second motor with oil discharged from the second oil pump, the oil discharged from the second oil pump being supplied to the second motor via an oil cooler that cools the oil,
- wherein a passage from the second oil pump to the second motor in the second feeding line and a passage from the first oil pump to the first motor and the differential mechanism in the first feeding line, are independent of each other.
Dependencies are inferred from the claim text.