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Title:
MOTOR DRIVING FORCE TRANSMISSION DEVICE
Document Type and Number:
Japanese Patent JP2012161239
Kind Code:
A
Abstract:

To provide a motor driving force transmission device that can be continuously used by suppressing the excessive heat generation of an electric motor due to continuous operation over a long period of time.

The motor driving force transmission device 1 includes a deceleration transmission mechanism 2 which transmits a motor driving force to a rear differential 107, a first electric motor 3 which is coupled to the rear differential 107 via the deceleration transmission mechanism 2 and generates a first motor driving force (a), a second electric motor 4 which is coupled to the first electric motor 3 and the deceleration transmission mechanism 2 and generates a second motor driving force (b), and an ECU 5 which outputs a control signal to drive the first electric motor 3 and the second electric motor 4 together when a drive torque to the rear differential 107 requires a torque equal to or more than a predetermined torque and which outputs a control signal for alternately driving the first electric motor 3 and the second electric motor 4 when the drive torque requires the torque less than the predetermined torque.


Inventors:
KOBAYASHI HISASHI
ONOZAKI TORU
TAGAMI MASAHARU
YAMAMORI MOTOYASU
TAKUNO HIROSHI
SUZUKI KUNIHIKO
TAKAI TOMOYOSHI
NOMURA KEITA
Application Number:
JP2012003168A
Publication Date:
August 23, 2012
Filing Date:
January 11, 2012
Export Citation:
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Assignee:
JTEKT CORP
International Classes:
B60L15/20; B60K17/12; F16H1/32; H02K7/116; H02P5/00; B60L50/16
Attorney, Agent or Firm:
Tadao Hirata
Takashi Nomiyama
Hiroyuki Ito