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US 2021/0062893 A1Published application
Vehicle driving device
AssigneeAisin Aw Co., Ltd.
InventorsDaiki SUYAMA, Hiroaki SANJI, Mitsuhiro ICHIOKA
Life of this patent
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Abstract
A vehicle driving device including: a rotary electric machine that is a driving force source of a first wheel and a second wheel; a speed reduction device that reduces a speed of a rotation of the rotary electric machine; and a differential gear device that distributes to the first wheel and the second wheel, a driving force that is transmitted from the rotary electric machine via the speed reduction device.
Claims20
A vehicle driving device comprising:
- a rotary electric machine that is a driving force source of a first wheel and a second wheel;
- a speed reduction device that reduces a speed of a rotation of the rotary electric machine;
- and
- a differential gear device that distributes to the first wheel and the second wheel, a driving force that is transmitted from the rotary electric machine via the speed reduction device, wherein
- the speed reduction device and the differential gear device are disposed coaxially with the rotary electric machine,
- the speed reduction device has a first planetary gear mechanism and a second planetary gear mechanism, and the first planetary gear mechanism is disposed on a rotary electric machine side relative to the second planetary gear mechanism in an order of a power transmission path, and
- a first speed reduction ratio that is a speed reduction ratio of the first planetary gear mechanism is smaller than a second speed reduction ratio that is a speed reduction ratio of the second planetary gear mechanism.
4 more elements
Dependencies are inferred from the claim text.