SYNCHRONOUS MOTOR DRIVING DEVICE

Japanese Patent JP3906429

B2

PROBLEM TO BE SOLVED: To provide a synchronous motor driving device capable of controlling leading phase at the time of forward and reverse drives based on the output signal of a same position detecting means.
SOLUTION: Hall ICs 23u-23w made up of Hall elements which detect the magnetic field of a magnetic pole 8 provided on a rotor are arranged on the magnetic pole teeth of a stator core. Each of the Hall ICs 23u-23w is arranged at the position of 30 degrees electrical angle (7.5 degrees mechanical angle) in one rotating direction from the center position of each of the magnetic pole teeth 1, 6, 2 of U-phase, V-phase and W-phase respectively. The driving device controls the supply timing of exciting current to the winding of each phase at 30 degrees leading phase angle by a first logic at the time of the forward drive and by a second logic at the time of the reverse drive based on the position detection signals from each Hall ICs 23u-23w. Also, the driving device is capable of adjusting the leading phase angle to that within 30 degrees by delaying the position detection signals by a delay circuit.

JPS5815495	[Title of the device] 1, the good gear change electric motor for 3 quadrant operation
WO/2005/036103	CONTROL DEVICE FOR ELECTRIC POWER STEERING DEVICE
WO/1999/052201	METHOD AND DEVICE FOR CONTROLLING AN ELECTRONICALLY COMMUTATED POLYPHASE D.C. MOTOR

Tatsuya Uematsu
Minoshima Epoch

JP8171299A

April 18, 2007

March 25, 1999

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KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

H02P6/22; H02K29/08; H02P6/06; H02P6/08; H02P6/15; H02P6/17; H02P6/30; (IPC1-7): H02P6/22; H02K29/08

JP8037791A
JP6165464A

Hidehiko Okada
Toshiyuki Ikeda
Tetsuyuki Iwata
Atsuko Nakamura

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