Patent ID: 8857388
Filing Date: 2014-10-14
Classification: F01L,F02D,F02N,Y02T

Abstract:
1. A valve open/close timing control system where a valve open/close timing control device comprises: a drive-side rotating member which is rotated synchronously with a crankshaft of an internal combustion engine; a driven-side rotating member which is arranged coaxially with a camshaft for opening or closing a valve and is integrally rotated with the camshaft; a relative rotational phase control mechanism which displaces a relative rotational phase between the drive-side rotating member and the driven-side rotating member in an advanced angle direction or in a retarded angle direction by selectively supplying working oil to one of an advanced angle chamber and a retarded angle chamber formed between the drive-side rotating member and the driven-side rotating member; and a first locking member which is biased to a locking position by a first biasing mechanism for restraining the relative rotational phase at a predetermine first locking phase, and a second locking member which is biased to a locking position by a second biasing mechanism for restraining the relative rotational phase at a second locking phase which is displaced in the retarded angle direction from the first locking phase, wherein the internal combustion engine is configured to be started by a drive force generated by a traveling motor used for traveling or by a drive force generated by a starter motor used at the time of starting the internal combustion engine, and the valve open/close timing control system also comprises a control unit which is configured, for starting the internal combustion engine while changing the relative rotational phase at the time of starting the internal combustion engine, to drive the starter motor or the traveling motor at the time of starting the internal combustion engine at the first locking phase, and to drive the traveling motor at the time of starting the internal combustion engine at the second locking phase.