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Without EGR in operation ..............
小白冷車啟動抖得比較兇,於是問了 chip tunner
答覆是一階/二階/三階都不涉及啟動 & 怠速的調整
宅爸便問 chatGPT 冷車啟動的邏輯為何 ?
Here is a general overview of the cold start algorithm for the BMW E60 535d:
1)The ECM receives input from various sensors, such as the coolant temperature
sensor, ambient air temperature sensor, and battery voltage sensor, to determine the
engine's current state.
2)If the engine is cold, the ECM activates the glow plugs to heat up the combustion
chambers.
3)The ECM adjusts the fuel injection timing and duration to provide a richer fuel
mixture for easier ignition.
4)The ECM increases the engine idle speed to help warm up the engine and improve
drivability.
As the engine warms up, the ECM gradually reduces the fuel mixture richness and
adjusts the ignition timing and idle speed to ensure smooth operation.
Once the engine reaches operating temperature, the ECM returns to normal operation
mode, and the cold start algorithm is no longer needed.
However During cold start, the EGR system is not typically active, and the engine is
allowed to run in a less efficient, high-emissions mode until it reaches its operating
temperature.
畢節望族後裔
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[冷]
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ajuggrutaiwan wrote:
柴油的預熱塞有那麼容易掛掉嗎？我的14年了⋯似乎還正常！
但會不會是因為台灣氣候溫暖⋯冷車即時沒預熱塞加熱也是能順利啟動？
不是預熱塞,是預熱控制單元,這是通病.
https://www.google.com/search?q=m57+glow+plug+module+repair&rlz=1C1ONGR_zh-TWTW945TW945&sxsrf=AJOqlzUC170aKKlHmddOtJhJ-SbIscpPTw%3A1677158222595&ei=Tmf3Y93tI43AhwPqqLrQCQ&oq=m57+glow+plug+module&gs_lcp=Cgxnd3Mtd2l6LXNlcnAQARgBMgoIABBHENYEELADMgoIABBHENYEELADMgoIABBHENYEELADMgoIABBHENYEELADMgoIABBHENYEELADMgoIABBHENYEELADMgoIABBHENYEELADMgoIABBHENYEELADMgoIABBHENYEELADMgoIABBHENYEELADSgQIQRgAUABYAGDaFWgBcAF4AIABAIgBAJIBAJgBAMgBCsABAQ&sclient=gws-wiz-serp
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個人積分：5772分
文章編號：86945848
個人積分：5772分
文章編號：86950978
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