Title:
MOTOR DRIVE DEVICE FOR VEHICLE, AND AUTOMOBILE
Document Type and Number:
WIPO Patent Application WO/2011/030670
Kind Code:
A1
Abstract:
A motor drive device for a vehicle, prevented from being rotated from the wheel side and capable of quickly switching the shift position. A first speed reduction gear train (23) and a second speed reduction gear train (24) are provided between a first shaft (21), which is rotationally driven by an electric motor (10), and a second shaft (22). Two-way roller clutches (30A, 30B) are mounted between a first output gear (23b) of the first speed reduction gear train (23) and the second shaft (22) and between a second output gear (24b) of the second speed reduction gear train (24) and the second shaft (22), and the shift position is switched by controlling the engagement and disengagement of the two-way roller clutches (30A, 30B) by means of a transmission ratio switching mechanism (50).
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Inventors:
MAKINO Tomoaki (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
Application Number:
JP2010/064442
Publication Date:
March 17, 2011
Filing Date:
August 26, 2010
Export Citation:
Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
ＮＴＮ株式会社 (〒03 大阪府大阪市西区京町堀１丁目３番１７号 Osaka, 〒5500003, JP)
ＮＴＮ株式会社 (〒03 大阪府大阪市西区京町堀１丁目３番１７号 Osaka, 〒5500003, JP)
International Classes:
F16H3/10; B60K6/36; B60K6/44; B60K6/52; B60K17/356; B60L11/14; B60W10/04; B60W10/08; B60W10/10; F16D41/08; F16H61/02; F16H61/682; F16H63/50
Attorney, Agent or Firm:
KAMADA Bunji et al. (18-12, Nipponbashi 1-chome Chuo-ku, Osaka-sh, Osaka 73, 〒5420073, JP)
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