公开(公告)号：US07676320B2

公开(公告)日：2010-03-09

申请号：US12210404

申请日：2008-09-15

申请人： Reza Aliakarzadeh ,  Klaus Bayerle

发明人： Reza Aliakarzadeh ,  Klaus Bayerle

IPC分类号： B60T7/12 ,  F02M1/00

CPC分类号： F02D41/182 ,  F02D37/02 ,  F02D41/1439 ,  F02D41/1495 ,  F02D2250/18

摘要： In a lower partial load range of, a setpoint value of the mass flow of air into the combustion chambers is determined as a function of a predefined torque request such that it is greater than necessary for implementing the predefined torque request and large enough that individual exhaust packets can be differentiated from one another with the exhaust gas probe. Depending on the air/fuel ratio setpoint value, an actuator is actuated whose position affects the actual air mass flow. To implement the torque request, engine efficiency is simultaneously reduced by actuating another actuator. A measurement signal of the exhaust gas probe is detected. The air/fuel ratios of the exhaust packets are determined as a function of the measurement signal detected. At least one operating parameter affecting the air/fuel ratio in at least one of the cylinders is adapted as a function of the air/fuel ratios determined.

摘要翻译： 在较低的部分负荷范围内，空气进入燃烧室的质量流量的设定值被确定为预定扭矩请求的函数，使得其大于实现预定扭矩请求所必需的程度，并且足够大以致各个排气 可以通过排气探针将分组彼此区分开。 根据空气/燃料比设定值，致动器被致动，其位置影响实际空气质量流量。 为了实现扭矩要求，通过致动另一个执行机构来同时降低发动机效率。 检测排气探头的测量信号。 排气包的空气/燃料比根据检测到的测量信号确定。 影响至少一个气缸中的空气/燃料比的至少一个操作参数适合于确定的空气/燃料比的函数。

公开(公告)号：US20090078242A1

公开(公告)日：2009-03-26

申请号：US12210404

申请日：2008-09-15

申请人： Reza Aliakarzadeh ,  Klaus Bayerle

发明人： Reza Aliakarzadeh ,  Klaus Bayerle

IPC分类号： F02D41/00

CPC分类号： F02D41/182 ,  F02D37/02 ,  F02D41/1439 ,  F02D41/1495 ,  F02D2250/18

摘要： In a lower partial load range of, a setpoint value of the mass flow of air into the combustion chambers is determined as a function of a predefined torque request such that it is greater than necessary for implementing the predefined torque request and large enough that individual exhaust packets can be differentiated from one another with the exhaust gas probe. Depending on the air/fuel ratio setpoint value, an actuator is actuated whose position affects the actual air mass flow. To implement the torque request, engine efficiency is simultaneously reduced by actuating another actuator. A measurement signal of the exhaust gas probe is detected. The air/fuel ratios of the exhaust packets are determined as a function of the measurement signal detected. At least one operating parameter affecting the air/fuel ratio in at least one of the cylinders is adapted as a function of the air/fuel ratios determined.

摘要翻译： 在较低的部分负荷范围内，空气进入燃烧室的质量流量的设定值被确定为预定扭矩请求的函数，使得其大于实现预定扭矩请求所需的量，并且足够大以使得各个排气 可以通过排气探针将分组彼此区分开。 根据空气/燃料比设定值，致动器被致动，其位置影响实际空气质量流量。 为了实现扭矩要求，通过致动另一个执行机构来同时降低发动机效率。 检测排气探头的测量信号。 排气包的空气/燃料比根据检测到的测量信号确定。 影响至少一个气缸中的空气/燃料比的至少一个操作参数适合于确定的空气/燃料比的函数。