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1.发明申请公开(公告)号：US20150260120A1
公开(公告)日：2015-09-17
申请号：US14644649
申请日：2015-03-11
申请人： MAN Truck & Bus AG
CPC分类号： F02D41/18 , F02B29/0406 , F02B29/0425 , F02D19/027 , F02D41/0027 , F02D41/0047 , F02D2200/0402 , F02D2200/0404 , F02D2200/0406 , F02M21/0215 , F02M21/0278 , F02M21/0284 , F02M21/04 , F02M21/042 , F02M26/05 , F02M26/23 , F02M35/1038 , Y02T10/146 , Y02T10/32
摘要： An internal combustion engine, in particular a gas engine, for a motor vehicle, includes a charge air cooler arranged in an air mass flow feed upstream of an apparatus for mixing in fuel, and a measuring device for determining the air mass flow. The measuring device has a sensor system for measuring a pressure loss across the charge air cooler and a processing unit as evaluation unit for calculating the air mass flow at least from the pressure loss which is measured by the sensor system and a charge air cooler model stored in the processing unit. The charge air cooler forms a geometrically constant throttle for the air mass flow which is flowing through.
摘要翻译： 一种用于机动车辆的内燃机，特别是燃气发动机，包括设置在用于燃料混合的装置上游的空气质量流进料中的增压空气冷却器和用于确定空气质量流量的测量装置。 该测量装置具有用于测量增压空气冷却器的压力损失的传感器系统和作为评估单元的处理单元，用于至少根据由传感器系统测量的压力损失和存储的增压空气冷却器模型来计算空气质量流量 在处理单元中。 增压空气冷却器为流经的空气质量流形成几何恒定的节气门。
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公开(公告)号：US20170114734A1
公开(公告)日：2017-04-27
申请号：US15331093
申请日：2016-10-21
申请人： MAN Truck & Bus AG
发明人： Joachim Weiss , Thomas Malischewski
IPC分类号： F02D41/00 , F02D41/24 , F02D41/14 , F02B37/013 , F01L1/047 , F02M26/08 , F02B29/04 , B01D53/94 , F02D13/02 , F01N3/20
CPC分类号： F02D41/005 , B01D53/9431 , F01L1/047 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N2430/10 , F01N2610/02 , F01N2900/08 , F01N2900/1404 , F02B29/04 , F02B37/004 , F02B37/013 , F02D13/0234 , F02D13/0269 , F02D41/0007 , F02D41/0047 , F02D41/0077 , F02D41/009 , F02D41/1446 , F02D41/1461 , F02D41/1497 , F02D41/2406 , F02D2041/001 , F02D2200/1002 , F02D2200/101 , F02D2250/36 , F02M26/02 , F02M26/08 , Y02A50/2325 , Y02T10/142 , Y02T10/144 , Y02T10/146 , Y02T10/24 , Y02T10/47
摘要： A method for operating an internal combustion engine using an external exhaust-gas recirculation device with a recirculation setting device to set the flow rate of the recirculated exhaust gas and using a closing time setting device to adjust the closing time of the at least one inlet valve of the internal combustion engine. For the reduction of nitrogen oxides emitted by the internal combustion engine, it is possible, by way of the closing time setting device, for a nitrogen oxide reduction cycle to be set in which the at least one inlet valve of the internal combustion engine closes earlier or later than in the basic cycle. If the torque of the internal combustion engine falls below at least a defined torque threshold value, the internal combustion engine is operated in the basic cycle and the recirculation of the exhaust gas is enabled by way of the recirculation setting device, and wherein, if the torque of the internal combustion engine exceeds the defined torque threshold value, the internal combustion engine is operated in the nitrogen oxide reduction cycle and the recirculation of the exhaust gas is blocked by way of the recirculation setting device.
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