Internal combustion engine controller

Details Internal combustion engine controller Internal combustion engine controller

2009-02-17

2011-12-20

Nguyen, Matthew (Department: 2838)

Electric power conversion systems

Current conversion

With voltage multiplication means

C323S222000, C123S490000

Reexamination Certificate

active

08081498

ABSTRACT:
An internal combustion engine controller comprises a booster coil connected to a battery and a booster capacitor. A switch element is connected to the booster coil to control the passage of current through the booster coil and an interruption of the current. The booster capacitor accumulates electrical energy generated with an inductance of the booster coil at the time of the interruption of the passage of the current. A booster control circuit carries out control in a constant boost switching cycle so as to pass the current through the booster coil and the switch element until the current reaches a preset switching stop threshold value and then interrupt the current to charge the energy generated with the inductance of the booster coil into the booster capacitor. The booster control circuit is configured to ensure a minimum time period for the booster capacitor-charging of the energy within the boost switching cycle.

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