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Title:
DYNAMO-ELECTRIC BRAKE DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP2000211496
Kind Code:
A
Abstract:

To provide a dynamo-electric brake device for vehicle capable of surely suppressing irregularity of braking force.

An electric motor 11 to be a driving source of dynamo-electric brake device for vehicle has an exciting coil 15 constituted by winding a coil on teeth on the stator 14 side and has a magnet 17 magnetized in multiple pole on the rotor 16 side. The number of salient magnetic poles constituted of teeth and the exciting coil 15 and the number of magnetic poles of the magnet 17 are made different numbers except a multiple. As a result, torque ripple generated at the time of rotation of the motor 11 is reduced and pressure contact force for discs 3 of brake pads 4, 5 by driving of the motor 11 is constantly changed.


Inventors:
TAMADA KIYOSHI
Application Number:
JP1687099A
Publication Date:
August 02, 2000
Filing Date:
January 26, 1999
Export Citation:
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Assignee:
ASMO CO LTD
International Classes:
B60T13/74; F16D65/18; F16D65/28; H02K7/06; H02K29/00; (IPC1-7): B60T13/74; F16D65/18; F16D65/34; H02K7/06; H02K29/00
Attorney, Agent or Firm:
Hironobu Onda