发明授权
- 专利标题： Variable valve operating system of internal combustion engine enabling variation of valve-lift characteristic and phase
- 专利标题（中）： 内燃机的可变气门操作系统能够改变气门升程特性和相位
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申请号： US10205198申请日： 2002-07-26
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公开(公告)号： US06615775B2公开(公告)日： 2003-09-09
- 发明人: Shinichi Takemura , Tsuneyasu Nohara
- 申请人： Shinichi Takemura , Tsuneyasu Nohara
- 优先权： JP2001-258913 20010829
- 主分类号： F01L134
- IPC分类号： F01L134
摘要：
In an internal combustion engine employing a variable lift and working angle control mechanism and a variable phase control mechanism, a first sensor is provided to detect an actual control state of the variable lift and working angle control mechanism every sampling time intervals. Also provided is a second sensor that detects an actual control state of the variable phase control mechanism every sampling time intervals. At least one of the sampling time interval for the first sensor and the sampling time interval for the second sensor has a characteristic that the one sampling time interval varies relative to the engine speed. A rate of change in the sampling time interval for the first sensor with respect to the engine speed is different from a rate of change in the sampling time interval for the second sensor with respect to the engine speed.
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