DRY TORQUE CONVERTER FOR ELECTRIC VEHICLE, AND CONTROL METHOD THEREFOR

Title:

DRY TORQUE CONVERTER FOR ELECTRIC VEHICLE, AND CONTROL METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2020/130359

Kind Code:

A1

Abstract:

A dry torque converter for an electric vehicle, and a control method therefor are disclosed. A dry torque converter for an electric vehicle, according to an embodiment of the present invention, comprises: a planetary gear connected to an input shaft by means of a first element, connected to an output shaft by means of a second element, and variably connected to a fixing part by means of a third element; a front cover integrally connected to the input shaft and the first element so that the planetary gear is embedded therein; one-way clutches which restricts the unidirectional connection of the third element and the fixing part and which are connected to each other; a back cover provided at the output shaft side so as to be coupled to the front cover; at least one eddy current torque generation part which is connected to the second element, which is controlled by means of the speed of the output shaft between the front cover and the back cover in an axial direction and which generates an eddy current; and a lock-up device radially provided around the inner peripheral surface of the front cover and the eddy current torque generation part, and which connects the second element and the front cover so as to directly connect the input shaft and the output shaft, while selectively coming in contact with the front cover by means of centrifugal force generated according to the rotational speed of the output shaft.

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Inventors:

HWANG YUN SIK (KR)

Application Number:

PCT/KR2019/015374

Publication Date:

June 25, 2020

Filing Date:

November 12, 2019

Export Citation:

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Assignee:

VALEO KAPEC CO LTD (KR)

International Classes:

F16H3/44; F16D43/14; F16H61/14; H02K49/04

Foreign References:

KR101858187B1	2018-06-27
JP2015122952A	2015-07-02
KR101897759B1	2018-09-12
JP2016065601A	2016-04-28
US8622859B2	2014-01-07

Attorney, Agent or Firm:

YOU ME PATENT AND LAW FIRM (KR)

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