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Title:
DRIVE-BY-WIRE BRAKE ACTING THROUGH MOTOR IN COMBINATION WITH MAGNETOSTRICTION
Document Type and Number:
WIPO Patent Application WO/2018/120786
Kind Code:
A1
Abstract:
A drive-by-wire brake acting through a motor in combination with magnetostriction, consisting of a motor (101), a transmission mechanism (104), a magnetostrictive drive piston mechanism (114), and a floating caliper disc type mechanism (115). The transmission mechanism (104) consists of a planetary gear train (105) and a threaded screw (110). Driven by the motor (101), linear movement of a sleeve (113) is achieved by means of transmission of the planetary gear train (105) and the threaded screw (110). The sleeve (113) drives a piston head (10) in an axially telescopic magnetostrictive drive piston mechanism (114) to move linearly. The piston head (10) pushes a braking plate (118) in the floating caliper disc type mechanism (115) for braking. According to the drive-by-wire brake acting through a motor in combination with magnetostriction, the motor and magnetostriction are used for implementing combined braking. The problems that a motor drive-by-wire brake is slow in response and poor in precision, and locked-rotor are solved, and the problem that a magnetostriction type brake is poor in mechanical performance is also solved.

Inventors:
BAI, Xianxu (No. 193, Tunxi Rd. Baohe Distr.,Hefei University of Technolog, Hefei Anhui 9, 230009, CN)
LI, Yang (No. 193, Tunxi Rd. Baohe Distr.,Hefei University of Technolog, Hefei Anhui 9, 230009, CN)
CAI, Feilong (No. 193, Tunxi Rd. Baohe Distr.,Hefei University of Technolog, Hefei Anhui 9, 230009, CN)
SI, Zhiyuan (No. 193, Tunxi Rd. Baohe Distr.,Hefei University of Technolog, Hefei Anhui 9, 230009, CN)
QIAN, Lijun (No. 193, Tunxi Rd. Baohe Distr.,Hefei University of Technolog, Hefei Anhui 9, 230009, CN)
Application Number:
CN2017/093715
Publication Date:
July 05, 2018
Filing Date:
July 20, 2017
Export Citation:
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Assignee:
HEFEI UNIVERSITY OF TECHNOLOGY (No. 193, Tunxi Rd. Baohe Distr.,Hefei University of Technolog, Hefei Anhui 9, 230009, CN)
International Classes:
F16D55/2265; B60T13/74; F16D65/18
Foreign References:
CN1262804A2000-08-09
CN106594115A2017-04-26
CN102537140A2012-07-04
CN101606004A2009-12-16
CN101137524A2008-03-05
US6230854B12001-05-15
Attorney, Agent or Firm:
BEIJING HAIHONG JIACHENG INTELLECTUAL PROPERTY & PARTNERS (9th Floor, Tower B Zhongguancun Intellectual Property Mansion,No.21, South Road Haidian, Haidian District, Beijing 0, 100080, CN)
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