Electromagnetic valve controller of an internal combustion engine

Abstract

A electromagnetic valve controller for an internal combustion engine selectively implements a normal operation mode for controlling all of the electromagnetic valves according to normal principles for implementing a four-cycle operation of the internal combustion engine, and a valve-stopped operation mode for controlling the electromagnetic valves according to rules for stopping at least one of the electromagnetic valves. In other words, execution of the valve-stopped operation mode is inhibited for a predetermined period after the internal combustion engine is started. Therefore, a failure of any one of the electromagnetic valves caused by the valve-stopped operation can be appropriately prevented from occurring, without degrading starting response characteristics of the internal combustion engine.

Dependencies are inferred from the claim text.