【汽车技术】雷克萨斯LX470维修技术培训—LEXUS技术资料(188PPT).ppt
《【汽车技术】雷克萨斯LX470维修技术培训—LEXUS技术资料(188PPT).ppt》由会员分享,可在线阅读,更多相关《【汽车技术】雷克萨斯LX470维修技术培训—LEXUS技术资料(188PPT).ppt(188页珍藏版)》请在三一文库上搜索。
1、This CD-ROM presentation is addressed to sales and service personnel and contains basic technical information about the features of the LEXUS LX470. This CD-ROM is STRICTLY for IN-DISTRIBUTOR and DEALER USE.,The letters displayed in the upper right-hand corner represent destination codes of models w
2、hich include the features described in that particular slide. Please include in your presentation all of the relevant slides or explanations whose destination codes correspond to those in your market.,This CD-ROM presentation contains photos for the prototype version of the vehicle. As such, some of
3、 the photos shown here may vary from the model in your market.,LX470,LX470,Contents,Model Outline Engine Chassis Body Body Electrical,Model Outline,Line-up Line-off August, 2002 Model Line-up,Model Outline,Model Code,UZJ100 L G N A G K A,1,2,3,4,5,6,7,8,Model Outline,Equipment LEXUS Night View Syste
4、m This system may assist the driver for front field of view at night This is optional equipment for U.S.A.,Night View Display,Drivers View,Model Outline,Mechanism Cranking Hold Function Once the ignition switch is turned to the START position, this control continues to operate starter until engine s
5、tarts,Starter,Ignition Switch,Engine starts,“Start”,Operate,Operates Automatically,“ON”,Stop,Model Outline,Mechanism A750F Automatic Transmission A750F 5-speed automatic transmission (Super ECT ) is newly added,Model Outline,Mechanism VGRS (Variable Gear Ratio Steering) System The steering gear rati
6、o will be changed in accordance with the vehicle speed,Low Ratio (Quick),High Ratio (Slow),Vehicle speed low,Vehicle speed high,a,a,a + ,Model Outline,Passive Safety SRS Airbag System Roll sensing of curtain shield airbags control (RSCA) is adopted,Both sides curtain sealed airbags,Both sides front
7、seat belt pretensioners,RSCA Control,Engine,Cooling System Intake & Exhaust System Fuel System Charging System Engine Control System,Engine,Radiator Core,03 LX470,02 LX470,3.0 mm (0.12 in.),3.5 mm (0.14 in.),Cooling System Radiator Core The fin pitch of the radiator core is reduced to improve coolin
8、g performance,Engine,Intake & Exhaust System TWC Tandem type TWCs are used to comply the SFTP regulation,Tandem type TWCs,Reference,Intake & Exhaust System TWC Specification,Engine,Fuel System Charcoal Canister The capacity of charcoal canister is increased to reduce evaporative emission,*: Saudi Ar
9、abia,Engine,Charging System Alternator Compact and lightweight Segment Conductor type alternator is used,Segment Conductor,Twisted,Joined Segment Conductor System,Joined,A Cross Section Diagram,A,Stator,Engine,Engine Control System Oxygen Sensor ETCS-i Fuel Pump Control Evaporative Emission Control
10、System Cranking Hold Function Engine Control Module Diagnosis System,Engine,Engine Control System Oxygen Sensor Ultra-high temperature resistant oxygen sensor is used to comply with the SFTP regulations,Element,Element Covers,Bushing,Heater Brazing,: Ultra-high temperature resistant materials,Engine
11、,Engine Control System ETCS-i The accelerator cable and magnetic clutch is discontinued,Accelerator Pedal Position Sensor,Throttle Position Sensor,Throttle Control Motor,Accelerator Cable,02 LX470,Accelerator Pedal Position Sensor,Throttle Position Sensor,Throttle Control Motor,03 LX470,Magnetic Clu
12、tch,Engine ECU (ECM),Engine ECU (ECM),Throttle Position Sensor,Engine,Engine Control System ETCS-i A No-contact type throttle position sensor is used,Throttle Control Motor,Reduction Gears,Throttle Valve,Hall ICs,Magnets,Reference,Engine Control System ETCS-i Two Hall ICs and two magnets are used fo
13、r throttle position sensor,Throttle Valve,Hall ICs,Magnets,Engine,Engine Control System ETCS-i Throttle position sensor converts into electric signals the magnetic flux density,Throttle Valve Opening Angle,Full Open,Full Close,VTA,VTA2,Output Voltage (V),0,5,Engine ECU (ECM),VTA,VTA2,E2,VC,Hall IC,M
14、agnet,Service Point,Engine Control System ETCS-i Parts inspection of the throttle position sensor is discontinued,02 LX470 (Contact type),03 LX470 (No-contact type),Throttle Control Motor M+ M- : 0.3 100 at 20C (68 F) Magnetic Clutch CL+ CL- : 4.2 5.2 at 20C (68 F) Throttle Position Sensor VC E2 : 1
15、.25 2.35 k at 20C (68 F),Inspection,Throttle Control Motor M+ M- : 0.3 100 at 20C (68 F),Inspection, The magnetic clutch is discontinued The throttle position sensor can not be inspected,Engine,Engine Control System ETCS-i The accelerator pedal position sensor is mounted on the accelerator pedal,Acc
16、elerator Pedal Position Sensor (Contact Type),VPA1,VPA2,Engine,Engine Control System Fuel Pump Control Fuel pump speed is controlled as 2-step by using fuel pump resistor,Engine ECU (ECM),FC,+B,FPR,Fuel Pump Resistor,Fuel Pump Relay,Circuit Opening Relay,Fuel Pump Motor,Hi,Low,Reference,Engine Contr
17、ol System Fuel Pump Control Location of fuel pump resistor,Fuel Pump Resistor,Engine,Engine Control System Evaporative Emission Control System The vacuum type leakage detection function is used to comply with the OBD-II regulations,Leaks from a hole of 0.5 mm or more can be detected,Canister Close V
18、alve,Vapor Pressure Sensor,Charcoal Canister,To Intake Manifold,From Air Connector Pipe,Purge Valve,ORVR Valve,Pressure Switching Valve,Engine,Engine Control System Cranking Hold Function Once the ignition switch is turned to the START position, this control continues to operate starter until engine
19、 starts,Starter,Ignition Switch,Engine starts,“Start”,Operate,Operates Automatically,“ON”,Stop,Engine,Engine Control System Cranking Hold Function System Diagram,ST,ACC,NE,THW,Park/Neutral Position Switch,Audio & Illumination,Starter Relay,Starter,Engine Coolant Temp. Sensor,Crankshaft Position Sens
20、or,ACC Cut Relay,Ignition Switch,Engine ECU (ECM),ST,ACC,NE,THW,Park/Neutral Position Switch,Audio & Illumination,Starter Relay,Starter,Engine Coolant Temp. Sensor,Crankshaft Position Sensor,ACC Cut Relay,Ignition Switch,Engine ECU (ECM),Engine,Engine Control System Cranking Hold Function The ACC cu
21、t relay cuts off the ACC circuit while engine is cranking to prevent the accessory illumination from operating intermittently,Engine,Engine Control System Cranking Hold Function (Operation),Ignition Switch,Starter Relay,ACC Cut Relay,NE Signal,Time,Start,Automatically Controlled,Judgment,0.2 sec. or
22、 more,ON,Reference,Engine Control System Cranking Hold Function Judgment of the engine starting,Engine Coolant Temp. (C),Judgment Level (rpm),500,900,0,Reference Value!,Confidential,Engine,Engine Control System Cranking Hold Function The maximum cranking time will be changed with engine coolant temp
23、.,Reference Value!,Engine Coolant Temp. (C),Max. Cranking Time (sec.),When engine coolant temp. is lower, the time limit is longer,5,0,Confidential,Engine,Engine Control System Cranking Hold Function If the engine is already running, the engine ECU (ECM) will not energize to the starter relay,Start,
24、Ignition Switch,ON,OFF,Engine is already running,700 rpm,Starter Relay,NE Signal,Engine,Engine Control System Cranking Hold Function If the engine speed becomes 1200 rpm or more while cranking, the engine ECU (ECM) turns off a starter relay to prevent starter overrun,Time,1200 rpm,Driver operates in
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 汽车技术 萨斯 LX470 维修 技术培训 LEXUS 技术资料 188 PPT
链接地址:https://www.31doc.com/p-2770423.html