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Title:
WHEEL HUB MOTOR DRIVE SYSTEM AND MOTOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/098494
Kind Code:
A1
Abstract:
A wheel hub motor drive system and a motor vehicle. The wheel hub motor drive system comprises: a driving motor (3), comprising a stator (31) and a rotor (32) located on a radial inner side of the stator (31) and capable of rotating relative to the stator (31); a rotor support (4), supporting the rotor (32) from a radial inner side and fixed to the rotor (32); a planetary gear reducer (5), comprising a sun gear shaft (51) fixed to the rotor support (4), multiple planetary gears (52) located on a radial inner side of the sun gear shaft (51), and a planetary gear carrier (53) mounted on the multiple planetary gears (52); and an output shaft (6), fixed to the planetary gear carrier (53). A driving force/torque is transmitted to the output shaft (6) via the rotor (32), the rotor support (4), the sun gear shaft (51), the planetary gears (52), and the planetary gear carrier (53). A driving force/torque transmission path of a motor vehicle comprising the wheel hub motor drive system is shorter than a driving force/torque transmission path of a motor vehicle in the prior art. Therefore, the invention improves the efficiency of a drive system, and reduces power loss.

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Inventors:
CAI XIANGYANG (CN)
Application Number:
PCT/CN2019/114248
Publication Date:
May 22, 2020
Filing Date:
October 30, 2019
Export Citation:
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Assignee:
SCHAEFFLER TECHNOLOGIES AG (DE)
CAI XIANGYANG (CN)
International Classes:
B60K7/00; B60K17/04; B60K17/14; H02K7/10; H02K7/116
Foreign References:
CN107499112A2017-12-22
CN107499112A2017-12-22
CN200953505Y2007-09-26
CN108340768A2018-07-31
CN107196450A2017-09-22
CN107284225A2017-10-24
CN107150613A2017-09-12
CN103874871A2014-06-18
US9306430B22016-04-05
EP2962886B12017-05-10
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
Download PDF:
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