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Method and a control system for starting a motor

  • US 7,345,859 B2
  • Filed: 07/13/2006
  • Issued: 03/18/2008
  • Est. Priority Date: 07/15/2005
  • Status: Active Grant
First Claim
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1. A method of starting a motor, the method comprising the steps of:

  • (a) connecting a battery to input terminals at an electronic unit controlling the motor, thereby supplying a current to the electronic unit from the battery, the electronic unit ensuring that the supplied current does not exceed a predefined maximum current, Imax;

    (b) at least substantially continuously measuring an input voltage, Vinput, on the electronic unit input terminals, and comparing Vinput to a predefined minimum voltage, Vmin;

    (c) in case Vinput becomes smaller than Vmin, stopping the motor and waiting for a predefined time interval;

    (d) lowering the maximum permitted current level, Imax, to be supplied from the battery to the electronic unit; and

    (e) repeating steps (b) through (d) until it is obtained that Vinput

    Vmin and the motor is no longer in start-up mode.

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