Patent ID: 7395810

Claim:
An engine start control apparatus comprising: a float-type oil level detection sensor for generating an oil-level-lowering detection signal by detecting when a level of oil stored in a crankcase of an engine has lowered to a preset lower limit level; an ignition circuit for performing an ignition operation by controlling an ignition coil, connected to an ignition plug, to cause the ignition plug to produce a spark discharge; and a control section for controlling said ignition circuit in accordance with a detection signal output by said float-type oil level sensor, said control section including: a first charging circuit comprising a serial connection of: a first charging capacitor for charging a reverse voltage produced in a primary coil of the ignition coil; said float-type oil level detection sensor; and a first diode; a first switching element that is turned on, in response to voltage-charging of said first charging capacitor, to disable the ignition operation of said ignition circuit; a second charging circuit comprising a serial connection of: a second charging capacitor for charging a forward voltage produced in the primary coil of the ignition coil; and a second diode; and a second switching element that is turned on, in response to voltage-charging of said second charging capacitor, to disable an turning-on operation of said first switching element.