EP 1316722 A1 20030604 - Electronic command circuit for an automotive engine starter
Title (en)
Electronic command circuit for an automotive engine starter
Title (de)
Elektronische Schaltung zur Steuerung eines Startermotors
Title (fr)
Circuit de commande électronique d'un démarreur de véhicule automobile
Publication
Application
Priority
FR 0115555 A 20011130
Abstract (en)
The vehicle starter motor control circuit includes an electromagnetic contactor (CT) whose coil (L) is controlled by power transistors (T1, T2). The power stage (10) includes a diode (D1) which prevents the flow of current in the reverse direction, in the event of the inversion of polarity of the battery. <??>The electronic control circuit for a vehicle starter motor comprises an electromagnetic contactor (CT) whose coil (L) is excited via an electronic switch with power transistors (T1, T2). A management unit (G) co-operates with the electronic switch in order to control the excitation current through the coil. A free-wheeling diode (D2) is connected in parallel with the terminals of the coil. The power stage (10) includes a diode (D1) which prevents the flow of current in the reverse direction, in the event of the inversion of polarity of the battery. The electronic switch comprises a first transistor (T1) controlled by the management unit, and a second transistor (T2) mounted in series with the first, controlled in all-or-nothing mode by a logic gate (ET) sensitive to the open/closed state of the starter switch (K).
Abstract (fr)
Un circuit de commande électronique d'un démarreur de véhicule automobile, comprend un contacteur (CT) électromagnétique, dont la bobine (L) est excitée par l'intermédiaire d'un commutateur électronique à transistors de puissance (T1, T2). L'étage de puissance (10) est équipé d'un élément semi-conducteur unidirectionnel, notamment une diode (D1), destiné à interdire le passage du courant en cas d'inversion de polarité de la batterie (B). <IMAGE>
IPC 1-7
IPC 8 full level
F02N 11/08 (2006.01); F02N 11/10 (2006.01)
CPC (source: EP)
F02N 11/087 (2013.01); F02N 11/10 (2013.01)
Citation (search report)
- [XA] US 4209816 A 19800624 - HANSEN JAMES E [US]
- [X] US 4490620 A 19841225 - HANSEN JAMES E [US]
- [A] US 5413072 A 19950509 - ANDERSEN CHRISTIAN J [US], et al
- [A] GB 2338845 A 19991229 - SIEMENS ELECTROMECH COMPONENTS [US]
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 1316722 A1 20030604; EP 1316722 B1 20070404; DE 60219268 D1 20070516; DE 60219268 T2 20080103; ES 2284799 T3 20071116; FR 2834756 A1 20030718; FR 2834756 B1 20041015
DOCDB simple family (application)
EP 02292919 A 20021126; DE 60219268 T 20021126; ES 02292919 T 20021126; FR 0115555 A 20011130