首页> 外国专利> Method and device for determining an oxygen storage capacity of a catalytic converter of an internal combustion engine and method and device for determining a dynamic time duration for exhaust probes of an internal combustion engine

Method and device for determining an oxygen storage capacity of a catalytic converter of an internal combustion engine and method and device for determining a dynamic time duration for exhaust probes of an internal combustion engine

机译:用于确定内燃机的催化转化器的储氧能力的方法和装置以及用于确定内燃机的排气探针的动态持续时间的方法和装置

摘要

An exhaust gas catalytic converter is laden with oxygen until it is saturated at least upstream of an exhaust gas probe. A predefined first rich air/fuel ration is set in a combustion chamber of a cylinder. A first oxygen storage capacity value is determined as a function of the measurement signal of an exhaust gas probe and the predefined first rich air/fuel ratio. The exhaust gas catalytic converter is laden with oxygen until it is saturated. A predefined second rich air/fuel ration is set in the combustion chamber of the cylinder. A second oxygen storage capacity value is determined as a function of the measurement signal of the exhaust gas probe and the predefined second rich air/fuel ration. A corrected oxygen storage capacity value is determined as a function of the first and second oxygen storage capacity values.
机译:废气催化转化器中充满氧气,直到至少在废气探针的上游达到饱和为止。在气缸的燃烧室中设置有预定的第一浓空燃比。根据废气探测器的测量信号和预定的第一浓空燃比确定第一储氧量值。废气催化转化器中充满氧气直至饱和。在气缸的燃烧室中设置有预定的第二富空燃比。根据废气探测器的测量信号和预定的第二富空气/燃料比确定第二储氧能力值。根据第一和第二氧气存储量值确定校正的氧气存储量值。

著录项

  • 公开/公告号US8484946B2

    专利类型

  • 公开/公告日2013-07-16

    原文格式PDF

  • 申请/专利权人 TINO ARLT;GERD RÖSEL;

    申请/专利号US201113031334

  • 发明设计人 TINO ARLT;GERD RÖSEL;

    申请日2011-02-21

  • 分类号F01N3;

  • 国家 US

  • 入库时间 2022-08-21 16:47:15

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号