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1. 发明授权

US11313306B2 Torque monitoring device 有权
公开(公告)号：US11313306B2
公开(公告)日：2022-04-26
申请号：US16775651
申请日：2020-01-29
申请人： DENSO CORPORATION
发明人： Takanobu Goto
IPC分类号： F02D41/22 , F02D41/02
摘要： A torque monitoring device monitors the occurrence of an abnormal torque state causing an estimated torque as an estimated value for an actual torque of an internal combustion engine to differ from an engine-requested torque required of the internal combustion engine and includes: a discrete value setup unit configured to increase a discrete value correspondingly to increase in a difference quantity between the estimated torque and the engine-requested torque; an accumulation unit configured calculate an accumulation value of the discrete value; and a determination unit configured to determine that the abnormal torque state occurs when the accumulation value becomes larger than or equal to a predetermined abnormality determination threshold value.

2. 发明授权

US11028793B2 Internal combustion engine control system 有权
公开(公告)号：US11028793B2
公开(公告)日：2021-06-08
申请号：US16788659
申请日：2020-02-12
申请人： DENSO CORPORATION
发明人： Takanobu Goto
IPC分类号： F02D41/04 , F02D41/22
摘要： A control unit controls a combustion state of an internal combustion engine based on a detection value of a temperature sensor. A monitor unit calculates an estimated torque of actual torque of the internal combustion engine and calculates an engine-requested torque requested for the internal combustion engine and to monitor whether the estimated torque differs from the engine-requested torque by an amount that is more than or equal to a predetermined criterion. A detection abnormality determination unit determines whether a detection value or behavior of the detection value is abnormal. The monitor unit includes: a normal-state torque calculation unit to calculate an estimated torque by using the detection value when the detection abnormality determination unit does not determine an abnormality; and an abnormal-state torque calculation unit to calculate an estimated torque by inhibiting using of the detection value when the detection abnormality determination unit determines an abnormality.

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