Internal combustion engine controller

摘要

There is provided an internal combustion engine controller that realizes a reduction in maximum current value and current regulation without sacrificing boost performance. An internal combustion engine controller 100 comprises: a boost coil 101 configured to boost a voltage VB of a battery power source; a boost switch element 106 configured to switch between causing a current to flow and stopping a current from flowing through the boost coil 101; and a current detection portion 126 configured to detect a current flowing through the boost switch element 106, wherein boost control is effected by repeating the switching of the switch element, the voltage boosted at the boost coil 101 is charged to a boost capacitor 103 via a diode 104, and, during the boost control, the internal combustion engine controller 100 makes the boost switch element 106 stop the current flowing through the boost coil 101 when the detected current reaches a switching stop current value and, after a predetermined set time Tdown has elapsed from the point at which current flow is stopped, makes the boost switch element 106 cause a current to flow through the boost coil 101.

主权项

1. An internal combustion engine controller, comprising:
a boost coil configured to boost a voltage of a battery power source; a boost switch element configured to switch between causing a current to flow and stopping a current from flowing through the boost coil; and a current detection portion configured to detect a current flowing through the boost switch element, wherein boost control is effected by repeating the switching of the boost switch element, the voltage boosted at the boost coil is charged to a boost capacitor via a diode, and during the boost control, the internal combustion engine controller makes the boost switch element stop the current flowing through the boost coil when the detected current reaches a switching stop current value and, after a predetermined set time has elapsed from the point at which current flow is stopped, makes the boost switch element cause a current to flow through the boost coil.