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Method for gradually driving a motor vehicle starter switch

  • US 6,516,767 B1
  • Filed: 02/27/2001
  • Issued: 02/11/2003
  • Est. Priority Date: 06/30/1999
  • Status: Expired due to Term
First Claim
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1. Apparatus for control of the power supply to a coil (B) for driving a moving contact (2b) of a motor vehicle starter, arranged to vary the effective current in the coil (B) during displacement of the core (2b) towards its contact position, whereby to close a moving contact (3) of the contactor and to energise the electric motor, wherein it is arranged to perform, in the course of this displacement:

  • a first driving phase (t0, t1) at an effective current sufficient to set the core in motion, then;

    a second driving phase (t1, t2, t3) at a lower effective current, characterised in that a continuous increase in the effective current is initiated during the said second phase after a predetermined or determined time.

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