US 2019/0316655 A1Published application

Power distribution device

AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho

InventorsYasumitsu OSADA, Teruhiko NAKAZAWA, Atsushi SUZUKI, Hiroyuki NISHIZAWA, Yasuhiro TORII

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Abstract

A planetary gear mechanism has a first planetary gear train that includes a ring gear to which power from a main power source is input, a planetary carrier that is connected to a first output shaft, a first planetary pinion that is turnably supported by the planetary carrier, and a first sun gear that is connected to a distribution electric motor. The planetary gear mechanism also has a second planetary gear train that includes the ring gear, the planetary carrier, the first planetary pinion, a second planetary pinion that is turnably supported by the planetary carrier, and a second sun gear that is connected to a second output shaft.

Claims4

Dependent claims

A power distribution device for splitting power input from a main power source between a first output shaft and a second output shaft, the power distribution device having a variable torque distribution ratio and comprising:

a planetary gear mechanism including:
a ring gear to which the power from the main power source is input;
a planetary carrier that is connected to the first output shaft;
a first planetary pinion that is turnably supported by the planetary carrier and meshes with the ring gear;
a second planetary pinion that is turnably supported by the planetary carrier and meshes with the first planetary pinion;
a first sun gear that meshes with the first planetary pinion;
and
a second sun gear that is connected to the second output shaft and meshes with the second planetary pinion;
and
a distribution electric motor that is connected to the first sun gear, and from which torque for changing the torque distribution ratio is input to the planetary gear mechanism.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/358,291Filed 19 Mar 2019
Priority: JP 2018-07674112 Apr 2018
Published: 17 Oct 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

B60K 17/165
Of differential gearing: provided between independent half axles
F16H 3/666
Composed of a number of gear trains without drive passing from one train to another: with intermeshing orbital gears
B60K 17/346
Having a transfer gear: the transfer gear being a differential gear
B60K 17/3462
The transfer gear being a differential gear: with means for changing distribution of torque between front and rear wheels

Family

US 11,047,453 B2Related patent
US 2019/0316655 A1This patent

From the US filing history. Foreign family members aren’t listed.

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