公开(公告)号：US20160169136A1

公开(公告)日：2016-06-16

申请号：US14569225

申请日：2014-12-12

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Maruthi Narasinga Rao Devarakonda ,  Prashant Srinivasan ,  Medy Satria ,  Rohit Mahakali ,  Sharath Sridhar Aramanekoppa

IPC: F02D41/02 ,  F01N11/00

CPC classification number: F02D41/0235 ,  F01N11/007 ,  F02D41/0295 ,  F02D41/1454 ,  F02D41/1477 ,  F02D41/22

Abstract: A system includes a controller that has a processor. The processor is configured to receive a first signal from a first oxygen sensor indicative of a first oxygen measurement and a second signal from a second oxygen sensor indicative of a second oxygen measurement. The first oxygen sensor is disposed upstream of a catalytic converter system and the second oxygen sensor is disposed downstream of the catalytic converter system. The processor is also configured to derive a plurality of oxygen storage estimates based on the first signal, the second signal, and a catalytic converter model. Each of the plurality of oxygen storage estimates represents an oxygen storage estimate for a corresponding cell of a plurality of cells in the catalytic converter system. Further, the processor is configured to derive a system oxygen storage estimate for the catalytic converter system based on the plurality of oxygen storage estimates. The processor is also configured to derive a system oxygen storage setpoint for the catalytic converter system based on the catalytic converter model. The processor is then configured to compare the system oxygen storage estimate to the system oxygen storage setpoint and apply the comparison during control of a gas engine.

Abstract translation: 系统包括具有处理器的控制器。 处理器被配置为从第一氧传感器接收指示第一氧测量的第一信号和来自指示第二氧测量的第二氧传感器的第二信号。 第一氧传感器设置在催化转化器系统的上游，并且第二氧传感器设置在催化转化器系统的下游。 处理器还被配置为基于第一信号，第二信号和催化转化器模型导出多个氧气存储估计。 多个氧气存储估计值中的每一个代表催化转化器系统中的多个电池的相应电池的氧气储存估计值。 此外，处理器被配置为基于多个氧气存储估计值推导催化转化器系统的系统氧气储存估计。 处理器还被配置为基于催化转化器模型导出催化转化器系统的系统氧气存储设定点。 然后将处理器配置成将系统氧气存储估计与系统氧气存储设定值进行比较，并在气体发动机的控制期间应用比较。