Vehicular driving device
AssigneeAisin Corporation
InventorsTomohiro ONOUCHI, Sho YAMAKAWA, Hiroshi HAMAGUCHI
Life of this patent
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Abstract
A vehicular driving device mounted on an electric vehicle, the vehicular driving device including: a rotary electric machine including a rotor as a drive power source of a wheel; a case that accommodates the rotary electric machine and oil; a pump that is driven by a drive source different from the rotary electric machine and sucks and discharges oil in the case; an oil supply passage that supplies oil discharged from the pump to at least a rotor bearing that rotatably supports the rotor; and a control device that controls the pump.
Claims12
A vehicular driving device mounted on an electric vehicle, the vehicular driving device comprising:
- a rotary electric machine including a rotor as a drive power source of a wheel;
- a case that accommodates the rotary electric machine and oil;
- a pump that is driven by a drive source different from the rotary electric machine and sucks and discharges oil in the case;
- an oil supply passage that supplies oil discharged from the pump to at least a rotor bearing that rotatably supports the rotor;
- and
- a control device that controls the pump,
- wherein
- the control device includes a power source state acquisition unit that acquires information indicating an on or off state of a main power source of the electric vehicle, and a vehicle speed acquisition unit that acquires information indicating a vehicle speed of the electric vehicle, and
- the control device executes first discharge control for causing the pump to operate for a prescribed first discharge time on condition that the main power source has been switched from off to on and the vehicle speed has reached at least a prescribed vehicle speed threshold value.
Dependencies are inferred from the claim text.