公开(公告)号：US09784195B2

公开(公告)日：2017-10-10

申请号：US14834719

申请日：2015-08-25

申请人： Ayman M Ismail ,  Ethan E Bayer ,  John R Bucknell

发明人： Ayman M Ismail ,  Ethan E Bayer ,  John R Bucknell

IPC分类号： F02D41/00 ,  F02D41/14 ,  F02D41/24 ,  F02M26/46

CPC分类号： F02D41/0055 ,  F02D41/0052 ,  F02D41/2454 ,  F02D41/2474 ,  F02D2041/1472 ,  F02D2200/0418 ,  F02M26/46 ,  Y02T10/47

摘要： A technique is provided for compensating an untrimmed oxygen (O2) sensor utilized in operation of an exhaust gas recalculation (EGR) system associated with an engine. The technique includes, in one implementation, receiving a measurement from the O2 sensor at a known pressure, where the O2 sensor is positioned on an intake side of an engine system. Humidity compensation and pressure compensation are then determined for the O2 sensor measurement, where the pressure compensation is based in part on the humidity compensation. The EGR system is controlled using the untrimmed O2 sensor measurement that has been compensated for pressure and humidity.

公开(公告)号：US20160061151A1

公开(公告)日：2016-03-03

申请号：US14834719

申请日：2015-08-25

申请人： Ayman M. Ismail ,  Ethan E. Bayer ,  John R. Bucknell

发明人： Ayman M. Ismail ,  Ethan E. Bayer ,  John R. Bucknell

IPC分类号： F02M25/07 ,  F02D41/00

CPC分类号： F02D41/0055 ,  F02D41/0052 ,  F02D41/2454 ,  F02D41/2474 ,  F02D2041/1472 ,  F02D2200/0418 ,  F02M26/46 ,  Y02T10/47

摘要： A technique is provided for compensating an untrimmed oxygen (O2) sensor utilized in operation of an exhaust gas recalculation (EGR) system associated with an engine. The technique includes, in one implementation, receiving a measurement from the O2 sensor at a known pressure, where the O2 sensor is positioned on an intake side of an engine system. Humidity compensation and pressure compensation are then determined for the O2 sensor measurement, where the pressure compensation is based in part on the humidity compensation. The EGR system is controlled using the untrimmed O2 sensor measurement that has been compensated for pressure and humidity.

摘要翻译： 提供了一种用于补偿在与发动机相关联的废气重新计算（EGR）系统的操作中使用的未调整氧（O 2）传感器的技术。 在一个实施方案中，该技术包括在已知压力下从O2传感器接收测量值，其中O 2传感器位于发动机系统的进气侧。 然后为O2传感器测量确定湿度补偿和压力补偿，其中压力补偿部分基于湿度补偿。 使用已经补偿了压力和湿度的未经测试的O2传感器测量来控制EGR系统。