EP 1428236 A4 20090826 - SOLENOID ACTUATOR WITH POSITION-INDEPENDENT FORCE
Title (en)
SOLENOID ACTUATOR WITH POSITION-INDEPENDENT FORCE
Title (de)
SOLENOID-BETÄTIGUNGSGLIED MIT POSITIONSUNABHÄNGIGER KRAFT
Title (fr)
ACTIONNEUR A SOLENOIDE A FORCE INDEPENDANTE DE LA POSITION
Publication
Application
Priority
- US 0220020 W 20020621
- US 88631201 A 20010621
Abstract (en)
[origin: WO03001547A1] A device and method for control of a moving member (15) of a solenoid having a coil (13), air gap (25) and moving member (15) over the entire range of the movement. A sensor (17) is used for sensing the instantaneous value of the flux density in the air gap (25), and is converted to a voltage proportional to the intensity of the value. The value is converted to a unipolar drive current. The preferred sensor (17) is a Hall effect semiconductor magnetic field sensor. The solenoid (10) may include a bias (23) restraining the moving member (15).
IPC 1-7
IPC 8 full level
CPC (source: EP)
H01F 7/1607 (2013.01); H01F 7/1844 (2013.01); G05B 2219/41333 (2013.01)
Citation (search report)
- [DXY] US 5621293 A 19970415 - GENNESSEAUX ANDRE [FR]
- [DY] US 4665348 A 19870512 - STUPAK JR JOSEPH J [US]
- [Y] US 5003211 A 19910326 - GROOM NELSON J [US]
- See references of WO 03001547A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03001547 A1 20030103; EP 1428236 A1 20040616; EP 1428236 A4 20090826; JP 2005520320 A 20050707
DOCDB simple family (application)
US 0220020 W 20020621; EP 02742286 A 20020621; JP 2003507840 A 20020621