EP 0833052 B1 20030402 - Improvements in the control of the interruption of a vehicle engine starter
Title (en)
Improvements in the control of the interruption of a vehicle engine starter
Title (de)
Verbesserungen in der Verwaltung des Abschaltens eines Fahrzeuganlassers
Title (fr)
Perfectionnements à la gestion de la coupure d'un démarreur de véhicule automobile
Publication
Application
Priority
FR 9611793 A 19960927
Abstract (en)
[origin: EP0833052A1] A microcomputer receives inputs from starter motor temperature sensors and a zener diode and filter circuits connected to the positive battery terminal. The battery voltage profile during starting is derived and then examined during three time windows. During a first time window (t0-t0+dT0) when the pinion is engaged, if the battery voltage falls below a preset value (Usdep) a contactor fault is assumed and the starting procedure is halted. A maximum value of the oscillatory voltage (Uosc) is measured during a second time window (t1-t2) and used with the initial voltage (Uinit) to produce a threshold (Useuil) which will terminate a correct starting cycle. If during a third time window (t1-t3) the oscillatory voltage (Uosc) does not rise sufficiently starter motor jamming is assumed and the starting cycle is stopped.
IPC 1-7
IPC 8 full level
F02N 11/08 (2006.01)
CPC (source: EP US)
F02N 11/0848 (2013.01 - EP US); F02N 11/106 (2013.01 - EP US); F02N 2200/063 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES GB IT
DOCDB simple family (publication)
EP 0833052 A1 19980401; EP 0833052 B1 20030402; DE 69720360 D1 20030508; DE 69720360 T2 20040304; FR 2754017 A1 19980403; FR 2754017 B1 19981218; US 5970936 A 19991026
DOCDB simple family (application)
EP 97402219 A 19970924; DE 69720360 T 19970924; FR 9611793 A 19960927; US 93750897 A 19970925