Patent ID: 7252062
Filing Date: 2007-08-07
Classification: F02D,F02P

Abstract:
1. A glow plug energization controlling apparatus comprising: a power supply working to supply electric power to a glow plug mounted in an internal combustion engine; an on-off switch working to produce a control trigger signal when turned on; and a controller including a microcomputer, said controller being responsive to the control trigger signal to control supply of the electric power from said power supply to energize the glow plug, the microcomputer working to monitor an off-on interval from turning off to turning on of said on-off switch and control an amount of energization of the glow plug as a function of the off-on interval, wherein the microcomputer monitors an switch on-duration for which said on-off switch is in an on-state and controls the amount of energization of the glow plug as a function of the switch on-duration.