CONTROL DEVICE FOR ENGINE

摘要

PROBLEM TO BE SOLVED: To obtain a proper air intake amount even after a learning value of an intake amount (throttle opening) is cleared.SOLUTION: An EFI-ECU includes a volatile RAM and a nonvolatile RAM. A learning value EQG of a throttle opening TAISC in idling is stored in the volatile RAM. A learning value EQGDEP updated to be equivalent to the learning value EQG is stored in the nonvolatile RAM. The learning value EQGDEP is updated to be equivalent to the learning value EQG in a fixed cycle unless updating is forbidden. After the learning value EQG is cleared, the learning value EQG after being cleared is corrected with the usage of the learning value EQGDEP stored in the nonvolatile RAM.