| 摘要 |
PROBLEM TO BE SOLVED: To surely detect disconnection of gasoline injection signal line for each cylinder without causing rise of cost in a gasoline substitution LPG injection system. SOLUTION: In the gasoline substitution LPB injection system adding an injector for LPG and LPG injection control device calculating injection quantity of LPG fuel with receiving gasoline injection signal output according to output signal of a gasoline operation condition detection means for each cylinder via gasoline injection signal line on a gasoline injection control system existing on the engine and provided with a gasoline injection control device and an engine operation condition control means, LPG injection control device judges that gasoline injection signal line of the cylinder is disconnected and outputs that if gasoline injection signal from the gasoline injection control device is not received before predetermined time passes after the LPG injection control device detects that the engine is under operation conditions based on output signal of the engine operation detection means. COPYRIGHT: (C)2007,JPO&INPIT |
