Control system for an internal combustion engine using either gasoline or methane or lpg as a fuel

摘要

PCT No. PCT/EP95/02296 Sec. 371 Date Sep. 30, 1996 Sec. 102(e) Date Sep. 30, 1996 PCT Filed Jun. 13, 1995 PCT Pub. No. WO95/34752 PCT Pub. Date Dec. 21, 1995A control system for an engine adapted to operate either with gasoline injection or with methane or LPG injection, comprises a main electronic control unit (3) for controlling the gasoline injectors (1) and the ignition system (5) and an auxiliary electronic control unit (6) for controlling the mode of operation of the engine and the methane or LPG injectors (2). The auxiliary control unit (6) is further adapted to modify signals (9) representative of the angular position of the engine shaft which are to be sent to the main electronic control unit (3) in order to obtain an ignition adapted to the mode of operation with methane or LPG.