APPARATUS AND A METHOD FOR DETECTING A DISCONNECTION NUMBER ACCORDING TO THE RESISTANCE DESIGN OF A GLOW PLUG, CAPABLE OF PREVENTING PROBLEMS CAUSED BY DISCONNECTION

摘要

PURPOSE: An apparatus and method for detecting a disconnection number according to the resistance design of a glow plug are provided to prevent a start failure and engine misfire caused in advance.;CONSTITUTION: An apparatus and method for detecting a disconnection number according to the resistance design of a glow plug comprises an IPS unit(150), a disconnection detecting unit(160), and a diagnostic signal generating unit(170). The IPS unit measures the value of current flowing in the glow plug. The disconnection detecting unit detects the disconnection number of the glow plug by the whole resistance value corresponding to the measured current value. The disconnection detecting unit detects the number of disconnection in the glow plug by checking the range of the resistance value. The diagnostic signal generating unit outputs diagnostic signals with the number of the disconnection in the glow plug to an electric control unit.;COPYRIGHT KIPO 2013;[Reference numerals] (100) Glow plug disconnection number detecting device; (110) Operation control unit; (120) Time setting unit; (130) Duty setting unit; (140) Control signal generating unit; (150) IPS unit; (160) Disconnection detecting unit; (170) Diagnostic signal generating unit; (200) Electronic control unit(ECU); (300) Power unit; (310) Power measuring unit; (400) Glow plug; (AA) Ignition switch signal; (BB) PWM signal; (CC) Diagnostic signal