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    局域網控制技術的車空調的檢修故障

    來源:http://www.philiprobert.com發布時間:2017-11-08 15:17:16

    隨著局域網控制技術在車輛上的普及應用,很多維修人員在診斷中很容易陷入困局,有時甚至會出現盲目診斷或完全靠經驗維修的方式。比如對于開空調時發動機不能相應提速的故障,維修人員在診斷中往往會將檢修的重點放到怠速控制閥、壓縮機電池離合器控制線路等方面。
    With the popularization and application of LAN control technology in vehicles, many maintenance personnel in the diagnosis is easy to get into trouble, and sometimes even blind diagnosis or experience by way of maintenance. For example, when the engine open air conditioning can not speed up the corresponding fault, maintenance personnel in the diagnosis will often focus on the maintenance of idle speed control valve, compressor battery clutch control circuit and so on.

    這種情況對于普通電噴車往往有效,但是面對采用區域網控制技術的車輛,如此“頭疼醫頭”或采用常規診斷思路就難以順利解決問題了。這是因為來自空調系統結構、控制方式及控制電路的變化,導致診斷方式的改變。
    This situation is often effective for ordinary EFI vehicles, but in the face of the use of regional network control technology vehicles, so "headache head" or conventional diagnostic thinking will be difficult to solve the problem. This is due to changes in air conditioning system structure, control mode and control circuit, resulting in changes in diagnostic methods.

    濟南寶馬汽車維修

    比如區域網的網關損壞之后,不同的系統如發動機和空調,他們仍然會獨立工作,但他們之間無法聯系上,這樣就會采用固有的設定程序運轉。當運轉到一定的時間段的時候,這套系統就不能繼續維持了,因為它不可能在繼續學習了。
    For example, when the gateway of the area network is damaged, different systems such as engines and air conditioners will still work independently, but they can not be connected, so that the inherent set of programs can be used. When you move to a certain period of time, the system can not continue, because it is impossible to continue learning.

    在空調壓縮機電磁離合器接通的一瞬間,發動機要施加扭矩控制。當這套“逃離”以后,短時間內沒有關系,駕駛員還可以開空調正常運行,因為在上一次開空調的程序中它已經自己學習了。
    In the air compressor compressor electromagnetic clutch on the moment, the engine to apply torque control. When this "escape", after a short period of time, no matter, the driver can also open the normal operation of the air conditioner, because in the last open air conditioning program, it has learned.
    但是過了一段時間以后,發動機或其他系統可能會出現問題,因為工況已經發生改變,而它仍然按照固有的學習參數去控制空調系統,可這時往往就無法再使發動機平穩運行了,于是故障就會顯現出來,只有熟悉局域網控制技術,在診斷中才能做出游刃有余。
    But after a period of time, the engine or other system may be a problem, because the condition has changed, but it is still in accordance with the learning parameters inherent to control air conditioning system, but often cannot make the engine run smoothly, then the fault will be displayed, only familiar with LAN control technology, in order to diagnosis to ease.

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