基本信息:
- 专利标题： Gas sensor control apparatus and gas sensor control method
- 专利标题（中）：Gassensorsteuerungsvorrichtung und Gassensorsteuerungsverfahren
- 申请号：EP14180290.0 申请日：2014-08-08
- 公开(公告)号：EP2837786A1 公开(公告)日：2015-02-18
- 发明人： Matsuoka, Mikiyasu , Nakata, Shingo , Mishima, Takao
- 申请人： DENSO CORPORATION
- 申请人地址： 1-1, Showa-Cho Kariya City Aichi 448-8661 JP
- 专利权人： DENSO CORPORATION
- 当前专利权人： DENSO CORPORATION
- 当前专利权人地址： DENSO CORPORATION
- 代理机构： Winter, Brandl, Fürniss, Hübner, Röss, Kaiser, Polte - Partnerschaft mbB
- 优先权： JP2013167129 20130809
- 主分类号： F01N3/20
- IPC分类号： F01N3/20 ; F02D41/14 ; G01N27/407
摘要：
A catalytic conversion characteristic of a catalyst, which indicates a relationship between an air-to-fuel ratio and a catalytic conversion efficiency of the catalyst, includes a second air-to-fuel ratio point, which is a point of starting an outflow of NOx from the catalyst and is located on a rich side of a first air-to-fuel ratio point that forms an equilibrium point for a rich component and oxygen. A constant current circuit (43), which induces a flow of an electric current from an exhaust side electrode (33) to an atmosphere side electrode (34) through a solid electrolyte layer (32) in a sensor element (31), is connected to the sensor element (31). A microcomputer (41) controls a current value of the electric current, which is induced by the constant current circuit (43), based on a difference between the first air-to-fuel ratio point and the second air-to-fuel ratio point at the catalyst.
摘要（中）：
表示催化剂的空燃比和催化转化效率之间的关系的催化剂的催化转化特性包括第二空燃比点，其是开始NOx流出的点 并且位于形成富成分和氧的平衡点的第一空气 - 燃料比点的富侧。 在传感器元件（31）中通过固体电解质层（32）引导从排气侧电极（33）流向大气侧电极（34）的电流的恒流电路（43） 到传感器元件（31）。 微型计算机（41）基于第一空气燃料比点与第二空燃比点之间的差来控制由恒流电路（43）感应出的电流的电流值 在催化剂。
IPC结构图谱:
| F | 机械工程；照明；加热；武器；爆破 |
| --F01 | 一般机器或发动机；一般的发动机装置；蒸汽机 |
| ----F01N | 一般机器或发动机的气流消音器或排气装置；内燃机的气流消音器或排气装置 |
| ------F01N3/00 | 排气或消音装置，它具有净化的、使变为无毒的或其他的排气处理装置 |
| --------F01N3/08 | .使变为无害 |
| ----------F01N3/10 | ..对排气的有害成分进行加热转化和催化转化 |
| ------------F01N3/18 | ...以操作方法为特点的；调节 |
| --------------F01N3/20 | ....专门适用于催化转化的 |