康明斯通用電控發(fā)動機基礎(chǔ)培訓課件

1、電控發(fā)動機基礎(chǔ)培訓2007-08-251Industrial Electronics Training 培訓內(nèi)容電控發(fā)動機的基本原理安裝過程中的注意事項常見的故障及處理方法2007-08-252Industrial Electronics Training 電控發(fā)動機的基本原理Input device/輸入設(shè)備Sensors/傳感器輸入Switches/開關(guān)輸入Electronic Control Module or ECM/電子控制模塊microprocessor/ 微處理器Memory/存儲器 Output device/輸出設(shè)備Actuators/執(zhí)行器Electronic Contro

2、l System Familiarization電子控制系統(tǒng)介紹2007-08-253Industrial Electronics Training 電控發(fā)動機的基本原理Sensors 傳感器Temperature sensors 溫度傳感器Pressure sensors壓力傳感器Combination sensors組合式傳感器Fluid level sensors液位傳感器Speed and position sensors速度及位置傳感器2007-08-254Industrial Electronics Training 電控發(fā)動機的基本原理Temperature Sensors溫度傳

3、感器Include/包括:Coolant temperature sensors冷卻液溫度傳感器Intake air temperature sensors進氣溫度傳感器Fuel temperature sensors燃油溫度傳感器Oil temperature sensors機油溫度傳感器OEM supplied temperature sensors主機廠提供的溫度傳感器2007-08-255Industrial Electronics Training 電控發(fā)動機的基本原理Feature of Temperature Sensors溫度傳感器的特點Temperature Sensors

4、utilize thermistors溫度傳感器應(yīng)用熱敏電阻The resistance of sensors is from 500 ohms to 40k ohms傳感器的電阻值范圍在500到40千The resistance of sensors is inversely propertional to temperature,the change in resistance is not liner傳感器的電阻與溫度成反比,這種變化不是線性的Troubleshooting temperature sensors: check the resistance of the sensors溫

5、度傳感器的故障診斷：檢測傳感器的電阻2007-08-256Industrial Electronics Training 電控發(fā)動機的基本原理 Application of Pressure Sensors壓力傳感器的應(yīng)用Oil pressure sensors機油壓力傳感器Ambient air pressure sensors大氣壓力傳感器Fuel pressure sensors燃油壓力傳感器Intake air pressure sensors/Boost pressure sensors進氣壓力傳感器/增壓壓力傳感器OEM supplied pressure sensors主機廠提供

6、的壓力傳感器2007-08-257Industrial Electronics Training 電控發(fā)動機的基本原理Combination sensors組合式傳感器Combine both pressure and temperature sensors in one housing將壓力和溫度傳感器組合在同一殼體上Include/包括:Oil sensors機油組合傳感器Intake air sensors進氣組合傳感器Fuel sensors燃油組合傳感器2007-08-258Industrial Electronics Training 電控發(fā)動機的基本原理Fluid Level S

7、ensors液位傳感器Coolant level sensor冷卻液液位傳感器Water-In-Fuel sensor油中有水傳感器2007-08-259Industrial Electronics Training 電控發(fā)動機的基本原理Speed and Position Sensors速度及位置傳感器Engine speed sensor發(fā)動機速度傳感器Engine position sensor發(fā)動機位置傳感器Vehicle speed sensor車輛速度傳感器2007-08-2510Industrial Electronics Training 電控發(fā)動機的基本原理Speed and

8、 Position Sensors速度及位置傳感器Variable reluctance sensors可變磁組傳感器Hall effect sensors霍爾效應(yīng)傳感器2007-08-2511Industrial Electronics Training 電控發(fā)動機的基本原理Position Sensor位置傳感器Accelerator position sensor油門踏板位置傳感器Idle validation sensor怠速有效傳感器2007-08-2512Industrial Electronics Training 電控發(fā)動機的基本原理Switch/開關(guān)Single Pole-S

9、ingle Throw Switch單刀單擲開關(guān)Single Pole-Double Throw Switch單刀雙擲開關(guān)2007-08-2513Industrial Electronics Training 電控發(fā)動機的基本原理Switch/開關(guān)Double Pole-Single Throw Switch雙刀單擲開關(guān)2007-08-2514Industrial Electronics Training 電控發(fā)動機的基本原理Symbol of Switches開關(guān)的符號Single Pole-Single Throw Switch單刀單擲開關(guān)Single Pole-Double Throw

10、Switch單刀雙擲開關(guān)Double Pole-Single Throw Switch雙刀單擲開關(guān)2007-08-2515Industrial Electronics Training 電控發(fā)動機的基本原理Actuators 執(zhí)行器Solenoids actuators電磁閥式執(zhí)行器Pulse Width Modulation or PWM actuatorsPWM可變式執(zhí)行器2007-08-2516Industrial Electronics Training 電控發(fā)動機的基本原理Other electronic device其它電器設(shè)備Grid heater /柵格加熱器Relay/繼電器

11、Lamp/指示燈Fuse/保險絲2007-08-2517Industrial Electronics Training 電控發(fā)動機的基本原理Electrical Diagram Usage電控系統(tǒng)電路圖的使用Types of electrical diagrams電路圖類型Identify components on a wiring diagram識別電路圖中的各種符號Trace a circuit on a wiring diagram如何跟蹤電路圖中線路Color coded wires線路顏色含義2007-08-2518Industrial Electronics Training 電

12、控發(fā)動機的基本原理Electronic Wiring電控系統(tǒng)線束Wire types and wire gauge導線類型及標號Identify different connector types識別不同類型的傳感器接頭Identify the methods for repairing different connectors掌握不同類型的傳感器接頭維修方法2007-08-2519Industrial Electronics Training 電控發(fā)動機的基本原理Connector types傳感器接頭類型Deutsch connectorsDeutsch接頭 Weather Pack co

13、nnectorsWeather Pack接頭Metri-Pack connectorsMetri-Pack接頭AMP connectorsAMP接頭Bosch connectorsBosch接頭2007-08-2520Industrial Electronics Training 電控發(fā)動機的基本原理Deutsch connectorsDeutsch接頭3 pin/3針6 pin/6針9 pin/9針21 pin/21針29 pin/29針2007-08-2521Industrial Electronics Training 電控發(fā)動機的基本原理Deutsch connectors Repai

14、rDeutsch接頭維修Terminal Removal Tools端線拆卸工具(專用)Size/規(guī)格Color coded/以顏色標記2007-08-2522Industrial Electronics Training 電控發(fā)動機的基本原理Weather Pack connectors&RepairWeather Pack接頭及維修2 pin/2針3 pin/ 3針4 pin/ 4針Terminal Removal Tools端線拆卸工具（專用）2007-08-2523Industrial Electronics Training 電控發(fā)動機的基本原理Metri-Pack connecto

15、rsMetri-Pack接頭Terminals are not replaceable端線不可維修If one terminal is damaged, the connector must be replaced.如果某端線損壞了,必須更換整個接頭2007-08-2524Industrial Electronics Training 電控發(fā)動機的基本原理AMP connectors&RepairAMP接頭及維修To connect ECM與ECM 連接Many pin in a connector body接頭上有許多針Terminals Can be replaced individual

16、ly端線可單獨維修2007-08-2525Industrial Electronics Training 電控發(fā)動機的基本原理Bosch connectors&RepairBosch接頭及維修To connect Sensors/ Actuators與傳感器/執(zhí)行器連接Can only be repaired by replacing the entire connector只能更換整個接頭To connect ECM/與ECM連接Many pin in a connector body接頭上有許多針Usage pin removal tools使用 端線拆卸工具2007-08-2526Ind

17、ustrial Electronics Training 電控發(fā)動機的基本原理Wires Repair導線維修Butt Splice導線接頭Correct Repair Order正確的維修順序2007-08-2527Industrial Electronics Training 安裝過程中的注意事項 Power and Ground requirements 電源和接地要求Engine Block Ground -The ECM Return (Ground) must be connected to the engine block and from the engine block ba

18、ck to the battery return with a resistance of 0.02 Ohms or less. 發(fā)動機缸體接地-ECM 的地線必須連到缸體，從缸體通過小于或等于0.02 歐姆的電瓶線回到蓄電池負極。Frame Returns - Cab and chassis components should have common ground points to reduce ground loops. -The vehicle chassis must be grounded to either the engine block grounding stud or t

19、o the battery negative, but not to both. 車架回路 駕駛室和底盤的電器組件應(yīng)只有一個公共接地點，減少接地環(huán)流。 -車輛底盤只能接到缸體接地端或蓄電池負極中的一個，不能兩者都接。 2007-08-2528Industrial Electronics Training 安裝過程中的注意事項 ECM to Vehicle Connection Procedure: 將ECM連到車上電源的程序1、 All ECM power and I/O connections must be made before connecting the vehicle batter

20、ies into the vehicle electrical system. 將車輛蓄電池連接至車輛電氣系統(tǒng)之前，必須先進行所有 ECM 供電和 I/O 接線的連接. 2、 The Battery (+) connection must be connected after the Battery (-) connection and disconnected before the Battery (-) connection. 加電時：先接負極，后接正極。 斷電時：先斷正極，后斷負極。3、 The ECM must be connected to the battery and energ

21、ized only when the keyswitch is OFF. 只能在鑰匙開關(guān)斷電后，才允許把ECM接到蓄電池并通電。4、 The ECM should never be powered from a source outside the vehicle chassis. ECM 不得從車輛底盤外部的電源取電。2007-08-2529Industrial Electronics Training 安裝過程中的注意事項 Vehicle Battery Disconnection Procedure: 車輛的蓄電池斷電程序： If the following procedure is n

22、ot followed, fault codes and undesirable operation may result. 如果不按照下面的程序斷電，將會產(chǎn)生故障代碼。1、 Ensure the Keyswitch has been OFF for at least 30 seconds. 在鑰匙開關(guān)斷電至少30秒后，才允許斷電。2、 Disconnect the POSITIVE Battery Cable. 斷蓄電池正極。3、 Disconnect the NEGATIVE Battery Cable. 斷蓄電池負極。2007-08-2530Industrial Electronics

23、Training 安裝過程中的注意事項 Datalink Grounding 總線設(shè)備接地All datalink devices and adapters must share a common ground to the vehicle battery system. 所有的總線設(shè)備和適配器只能有一個公共接地點連接到蓄電池系統(tǒng)。Note that the shield should be grounded only at one point with a connection to the battery negative. 屏蔽線必須是連續(xù)的，且只能有一點連到蓄電池負極。2007-08-

24、2531Industrial Electronics Training 安裝過程中的注意事項 Welding Requirements 焊接要求Welding on the engine or engine mounted components is not recommended. 不建議在發(fā)動機上或發(fā)動機安裝部件上進行焊接 Cummins requires disconnecting all ECM connectors. 焊接時，康明斯要求斷開所有的ECM接頭。Attach the welder ground cable no more than 0.61 meters (two fee

25、t) from the part being welded. 連接電焊機接地電纜時，使該電纜距離焊接零件不超過 0.61 米（2 英尺） Never connect the ground cable of the welder to the ECM. 不要將電焊機的接地電纜連接在 ECM 上。2007-08-2532Industrial Electronics Training 安裝過程中的注意事項 彎曲點至少遠離接頭英寸處2007-08-2533Industrial Electronics Training 安裝過程中的注意事項接頭應(yīng)水平安裝。不用的插孔應(yīng)密封2007-08-2534Indu

26、strial Electronics Training 安裝過程中的注意事項線束的支撐與捆綁點應(yīng)遠離接頭英寸處2007-08-2535Industrial Electronics Training 安裝過程中的注意事項不用的插孔應(yīng)用密封塞堵上。2007-08-2536Industrial Electronics Training 常見的故障及處理方法故障指示燈報警指示燈 報警指示燈提供重要的操作員信息。操作者應(yīng)該及時地注意這些信息。停機指示燈 停機指示燈提供關(guān)鍵的操作員信息。這些信息要求操作者快速響應(yīng)并作出決定。 鑰匙開關(guān)轉(zhuǎn)到 ON 位置而診斷開關(guān)保持斷開，這些指示燈將會亮約2秒鐘然后熄滅，以核實指示燈正常工作和接線正確。參考下圖，這些指示燈都同時亮，然后滅，每次間隔 0.5 秒。 警告停機停機警告停機2007-08-2537Industrial Electronics Trainin