发明名称 |
CONTROL APPARATUS FOR HYDRAULIC VARIABLE VALVE TIMING MECHANISM |
摘要 |
<p>In a hydraulic variable valve timing mechanism comprising a lock pin that locks a vane rotor and a housing against relative rotation in the most retarding phase, a specified angle ± is set so that release of the lock pin is started at a time when positive cam torque acts on the vane rotor. When the crank angle reaches the specified angle ± 1 supply of hydraulic pressure to the advancing oil chamber is started to release the lock pin from the engagement with the lock hole, thereby enabling a reliable release of the lock pin prior to start of change of valve timing.</p> |
申请公布号 |
KR20120075440(A) |
申请公布日期 |
2012.07.06 |
申请号 |
KR20117015804 |
申请日期 |
2010.11.08 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
FUJIMURA HARUHITO;YOKOYAMA YUU;NUMAKURA MASAKI |
分类号 |
F01L1/34;F02D13/02 |
主分类号 |
F01L1/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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