| 摘要 |
PROBLEM TO BE SOLVED: To prevent an injection delay of gasoline alternate fuel, and to suppress the degradation of the output of an engine. SOLUTION: An LPG injection control unit comprises an injector 6 provided on each cylinder, a variety of sensors 31-35 to detect the operational state of an engine, an electronic control unit 2 for gasoline (ECU for gasoline) to output a gasoline injection signal in the beginning of an intake stroke of each cylinder based on the operational state, and an ECU 3 for LPG which corrects the gasoline injection signal outputted to each cylinder for adaptation to LPG, and successively outputs it to each injector 6 as the LPG injection signal. For this present LPG injection of one cylinder, the ECU 3 for LPG corrects the gasoline injection signal before a last output corresponding to the cylinder of the injection before the last from the ECU 2 for gasoline for adaptation to LPG to calculate the LPG injection, and outputs the LPG injection signal based on the calculated LPG injection to the injector 6 of one cylinder to start the LPG injection from the start of the output of the present gasoline injection signal outputted corresponding to one cylinder from the ECU 2 for gasoline. COPYRIGHT: (C)2003,JPO |
