| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device for a variable valve means capable of appropriately setting the start retardation time of an internal combustion engine, when the phase difference of the variable valve means is to be set to the initial value. SOLUTION: The control device for a variable valve means 26 for changing the phase difference of a crankshaft and a camshaft 22, according to flow-in and flow-out of working fluid from a pressure feeding means 63 interlocking with an internal combustion engine, is provided with a flow rate control means 60 for controlling flow rate of the working fluid flowing in and flowing out from the pressure feed means to the variable valve means, by displacing a spool valve element 66 of an inside of the body, according to control command value, and having a dead band near the retention command value for retaining the phase difference. The device retards the execution of stop command of the internal combustion engine, until the stop retardation time elapses, and executes control for setting the phase difference to the initial value by the flow rate control means; and the stop retardation time is the sum of the dead band passage times in which the spool valve element displaces from the position of the retention command value to the position out of the dead band, and phase difference change time in which the phase difference changes to predetermined value, based on the initial value after the dead band passage time. COPYRIGHT: (C)2009,JPO&INPIT
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