TY - JOUR
T1 - Proposal proposal of electromagnetic clutch structure to suppress surge voltage
AU - Muramatsu, Junya
AU - Kojima, Takashi
AU - Tanaka, Hiroya
AU - Hattori, Yoshiyuki
AU - Okada, Hiroshi
AU - Keino, Hiroki
AU - Nakanishi, Takashi
AU - Fujisaki, Keisuke
PY - 2014/11/1
Y1 - 2014/11/1
N2 - A new structure for a vehicular electromagnetic (EM) clutch is proposed here that suppresses the surge voltage generated by turning off the ignition switch of a vehicle. Through the theoretical consideration of the EM field, it is found that a larger eddy current in the EM clutch would be able to suppress the surge voltage because it causes a small time change in the magnetic flux passing through the coil. Therefore, the proposed structure has a metal layer with low resistivity surrounding the clutch coil and located between the coil and the coil housing. Numerical calculation of the EM field and electrical circuit, which expresses the measured time-series surge voltage well, shows the suppression effect of the surge voltage with the proposed structure. Therefore, the structure is verified to be useful for suppressing the surge voltage.
AB - A new structure for a vehicular electromagnetic (EM) clutch is proposed here that suppresses the surge voltage generated by turning off the ignition switch of a vehicle. Through the theoretical consideration of the EM field, it is found that a larger eddy current in the EM clutch would be able to suppress the surge voltage because it causes a small time change in the magnetic flux passing through the coil. Therefore, the proposed structure has a metal layer with low resistivity surrounding the clutch coil and located between the coil and the coil housing. Numerical calculation of the EM field and electrical circuit, which expresses the measured time-series surge voltage well, shows the suppression effect of the surge voltage with the proposed structure. Therefore, the structure is verified to be useful for suppressing the surge voltage.
KW - Eddy current
KW - electromagnetic (EM) clutch
KW - electromagnetic simulation
KW - nonlinear magnetic material
KW - surge voltage
UR - http://www.scopus.com/inward/record.url?scp=84915758546&partnerID=8YFLogxK
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U2 - 10.1109/TMAG.2014.2320994
DO - 10.1109/TMAG.2014.2320994
M3 - Article
AN - SCOPUS:84915758546
VL - 50
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 11
M1 - 6971478
ER -