Title:
VEHICLE EQUIPPED WITH MAGNETIC FLUID MAGNETIC BRIDGE TYPE CURRENT SENSOR
Document Type and Number:
WIPO Patent Application WO/2016/110932
Kind Code:
A1
Abstract:
A vehicle is equipped with a magnetic fluid magnetic bridge type current sensor and has a motor driven by electric power. The magnetic fluid magnetic bridge type current sensor is provided with: a magnetic circuit in which two separated ring-shaped magnetic paths formed by retaining the shape of a magnetic fluid by a container are coupled via a connecting path made of a magnetic material; and an excitation coil wound around the connecting path and driven by an excitation driving means. The magnetic fluid magnetic bridge type current sensor is also provided with: a magnetic fluid magnetic bridge for obtaining a magnetic equilibrium state by properly selecting the magnetic resistance of the magnetic circuit, said magnetic equilibrium state being a state in which the sum of the magnetic fluxes of the two ring-shaped magnetic paths becomes zero; and a detection coil wound around the magnetic circuit of the magnetic fluid magnetic bridge. In the magnetic fluid magnetic bridge type current sensor, when the magnetic resistance of the magnetic circuit is properly selected and the excitation coil is driven to obtain the magnetic equilibrium state in which the sum of the magnetic fluxes of the two ring-shaped magnetic paths becomes zero, a conducting wire to be detected is disposed in the ring-shaped magnetic paths so as to pass through the ring-shaped magnetic paths and the current to be measured, which flows through the conducting wire, is measured.
Inventors:
YAMASHITA SUNAO (JP)
Application Number:
PCT/JP2015/050030
Publication Date:
July 14, 2016
Filing Date:
January 05, 2015
Export Citation:
Assignee:
YYOFFICE YK (JP)
TADATSU TAKASHI (JP)
TADATSU TAKASHI (JP)
International Classes:
B60L11/18
Domestic Patent References:
| WO2010041340A1 | 2010-04-15 |
Foreign References:
| JP2000092732A | 2000-03-31 | |||
| JP2012198053A | 2012-10-18 | |||
| JP2013050330A | 2013-03-14 |
Attorney, Agent or Firm:
TANAKA, YASUKO (JP)
Yasuko Tanaka (JP)
Yasuko Tanaka (JP)
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