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宝马报“空气质量过高”是怎么回事?

来源:http://www.sdrunao.com/ 发布时间:2020-01-08   发布人:admin
  之前有网站发过“空气质量太低”的相关文章,最近一位车主问“空气质量太高”是怎么回事,今天带你去详细了解一下这个毛病。这个问题通常是由仪器上的“排放警告灯”引起的,在DME中保存了以下故障代码:102001:“空气质量,可靠性:空气质量太高”。
  There was an article about "air quality is too low" posted on the website before. Recently, a car owner asked "air quality is too high". Today, I will take you to learn more about this problem. This problem is usually caused by the "emission warning lamp" on the instrument. The following fault code is saved in the DME: 102001: "air quality, reliability: too high air quality".
  首先,为什么你会看到这个错误
  First of all, why do you see this mistake
  宝马的空气质量测量不再直接通过HFM(空气流量传感器)测量,而是通过DME(发动机计算机)通过进气阀升程(节流阀位置)、VANOS位置、进气温度、发动机转速、进气管压力、环境压力来测量。这六个信号综合计算。
  BMW's air quality measurement is no longer directly measured by HFM (air flow sensor), but by DME (engine computer) through intake valve lift (throttle valve position), VANOS position, intake temperature, engine speed, intake pipe pressure, ambient pressure. These six signals are calculated synthetically.
  然而,HFM也测量空气质量,如果HFM数据和DME数据之间的差异很大(通常超过40%),则报告“低空气质量”或“高空气质量”故障。
  However, HFM also measures air quality, and if the difference between HFM data and DME data is large (usually more than 40%), a "low air quality" or "high air quality" fault is reported.
  HFM测量的数据< DME计算的数据,报告为“低空气质量”。
  Data measured by HFM < data calculated by DME, reported as "low air quality".
  HFM测量的数据,>和DME计算的数据被报告为“空气质量太高”。
  Data from HFM measurements, > and DME calculations were reported as "too high air quality.".
  PS:在发动机怠速和紧急情况下,进气由节流阀调节。
  PS: in case of engine idling and emergency, the intake air is regulated by throttle valve.
  二、再说过错原因
  2、 On the cause of fault
  基于上述分析,我们知道,常见的原因导致空气质量“过度”要么是单位的问题,导致测量数据太大,或6信号测距装置所需的计算问题,从而导致计算数据太小,或直接测距装置的问题,如下:
  Based on the above analysis, we know that the common causes of "excessive" air quality are either unit problems, resulting in too large measurement data, or calculation problems required by 6-signal ranging device, resulting in too small calculation data, or problems of direct ranging device, as follows:
济南宝马专修
  1. HFM(空气流量传感器)故障;
  1. HFM (air flow sensor) failure;
  2. 进气系统
  2. Air intake system
  A.进气口未密封/泄漏。
  A. Air intake not sealed / leaking.
  电子阀系统故障:如偏心轴传感器、VVT等。
  Electronic valve system fault: such as eccentric shaft sensor, VVT, etc.
  C. VANOS系统故障:如凸轮轴传感器、曲轴传感器等。
  C. VANOS system fault: such as camshaft sensor, crankshaft sensor, etc.
  油门位置传感器故障。
  The throttle position sensor is faulty.
  E.进口温度传感器故障。
  E. Inlet temperature sensor failure.
  F.进口管道压力传感器故障。
  F. Inlet pipe pressure sensor failure.
  G.环境压力传感器故障。
  G. The ambient pressure sensor is faulty.
  进气消声器和空气滤清器滤芯外壳有几何公差。
  The intake muffler and the air cleaner element housing have geometric tolerances.
  3.DME系统应用程序。
  3. DME system application.
  4. 相关传感器、控制系统和DME之间的电路问题。
  4. Circuit problems between related sensors, control system and DME.
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