利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN101688496A 排气传感器加热器控制设备 无效 - 撤回

排气传感器加热器控制设备
摘要：
在基于布置在排气通道中的排气传感器(100)的输出来执行空燃比反馈控制的发动机(1)的一个实施例中，在发动机(1)在极低温度状态(例如，-20℃至-30℃)下起动时，在发动机(1)起动之后并不立即向加热器(200)供电，而是当发动机冷却水温已经达到空燃比反馈控制开始水温附近的温度时才开始向加热器(200)供电，所述加热器(200)对排气传感器(100)的传感器元件(110)进行加热。
摘要（英）：

In one embodiment of an engine (1) which performs an air-fuel ratio feedback control based on an output of an exhaust gas sensor (100) placed in an exhaust passage, in the start up of the engine (1) in an extremely low temperature condition (-20 DEG C to -30 DEG C, for example), electricity conduction to a heater (200), which heats a sensor element (110) of the exhaust gas sensor (100), is not performed immediately after the engine (1) is started but started when the temperature of the engine coolant reaches a temperature near a temperature at which the air-fuel ratio feedback control starts.

0/0