发明名称 |
Torque estimating system for internal combustion engine |
摘要 |
A torque estimating system for an internal combustion engine includes a plurality of cylinders and estimates torque for each cylinder. A cylinder pressure of a cylinder pressure sensor (CPS) mounted cylinder #1 is acquired. Measured indicated torque Te1 resulting from an explosion in the CPS-mounted cylinder #1 is calculated based on the cylinder pressure. A first angular acceleration dω1/dt and a second angular acceleration dω2/dt are calculated. Estimated indicated torque Te2 resulting from an explosion in a CPS-less cylinder #2 is calculated using the measured indicated torque Te1 of the CPS-mounted cylinder #1 and a difference value between the second angular acceleration dω2/dt and the first angular acceleration dω1/dt. |
申请公布号 |
US8688358(B2) |
申请公布日期 |
2014.04.01 |
申请号 |
US201013254699 |
申请日期 |
2010.02.26 |
申请人 |
SANO TAKESHI;SUZUKI YUSUKE;IKEDA SHINJI;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
SANO TAKESHI;SUZUKI YUSUKE;IKEDA SHINJI |
分类号 |
F02D41/24 |
主分类号 |
F02D41/24 |
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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