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1、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 starts Starter Ignition Switch Engine starts “Start” Operate Operates Automatically “ON” Stop -A Engine ?Engine Control System Crankin
2、g Hold Function System Diagram ST ACC NE THW Park/Neutral Position Switch Audio & Illumination Starter Relay Starter Engine Coolant Temp. Sensor Crankshaft Position Sensor ACC Cut RelayIgnition Switch Engine ECU (ECM) -A ST ACC NE THW Park/Neutral Position Switch Audio & Illumination Starter Relay S
3、tarter Engine Coolant Temp. Sensor Crankshaft Position Sensor ACC Cut RelayIgnition Switch Engine ECU (ECM) Engine ?Engine Control System Cranking Hold Function The ACC cut relay cuts off the ACC circuit while engine is cranking to prevent the accessory illumination from operating intermittently -A
4、Engine ?Engine Control System Cranking Hold Function (Operation) Ignition Switch Starter Relay ACC Cut Relay NE Signal Time Start : Without this system : With this system Automatically Controlled Judgment 0.2 sec. or more ON -A Engine ?Engine Control System Cranking Hold Function The maximum crankin
5、g time will be changed with engine coolant temp. Reference Value! Engine Coolant Temp. (C (F) Max. Cranking Time (sec.) 100 (212)Approx. 2 0 (32)Approx.5 -30 (-22)Approx.25 Engine Coolant Temp. (C) Max. Cranking Time (sec.) When engine coolant temp. is lower, the time limit is longer 5 0 -A Confiden
6、tial Engine ?Engine Control System Cranking Hold Function If the engine is already running, the ECM will not energize to the starter relay Start Ignition Switch ON OFF Engine is already running 700 rpm -A Starter Relay NE Signal Engine ?Engine Control System Cranking Hold Function If the engine spee
7、d becomes 1200 rpm or more while cranking, the ECM turns off a starter relay to prevent starter overrun Time 1200 rpm Driver operates intentionally OFF Starter Relay NE Signal Start Ignition Switch ON -A Engine ?Engine Control System Cranking Hold Function When a starter is intentionally operated by
8、 the driver, the ECM turns off a starter relay after 30 sec. in order to prevent starter overheating Starter Relay NE Signal 30 sec. Driver operates intentionally OFF Engine does not start (Problem) Start Ignition Switch ON Time -A Body Electrical ?Audio System RSES (Rear Seat Entertainment System)
9、The rear seat occupants can listen or watch to an audio-visual mode different from the one that is currently selected in the front head unit Rear Display Remote Controller -A Wireless Headphone Wired Headphone Rear Audio Control Panel Front Head Unit Body Electrical ?Audio System RSES The mode that
10、can be selected with this system RadioRear Front OFF AM ? ? ? ? ? ? ? ? FM Cass- ette CD Changer Navi- gation ? ? ? ? ? ? ? ? AM? Radio ? ? ? ? ? Navigation? OFF? FM? Cassette ? CD Changer? DVD Player? Video Terminal? DVD Player Video Terminal ?: It can select the same contents as front head unit ?:
11、 It cannot select ?: It can select : Optional equipment -A Body Electrical ?Audio System RSES System Diagram (with navigation system) Speaker : AVC-LAN : Sound Signal : Picture Signal Remote Controller 6 CD- Changer Navigation ECU DVD Player Radio and Player Headphone Terminal Wireless Wired -A Rear
12、 Audio Control Panel Headphone Rear Display Front Display RSE ECU Video Terminal Body Electrical ?Audio System RSES The rear display assembly receives signals from the remote controller and outputs sound signals to the wireless headphone -A Sound signal output (to wireless headphone) Control signal
13、input (from remote controller) 7 inch LCD screen RSE ECU Infrared Signals Body Electrical ?Audio System RSES Rear audio control panel -A Headphone Terminals Volume Switches Video Terminals Body Electrical ?Audio System RSES This system is controlled only by remote controller -A Body Electrical ?Audi
14、o System RSAS (Rear Seat Audio System) The rear seat occupants can listen to an audio mode different from the one that is currently selected in the front head unit -A RSA Controller Remote Controller Front Head Unit Wireless Headphone Wired Headphone Rear Audio Control Panel Body Electrical ?Audio S
15、ystem RSAS The mode that can be selected with this system ?: It can select the same contents as front head unit ?: It cannot select ?: It can select? ? ? RadioRear Front OFF AM ? ? ? ? ? FM Cassette CD Changer OFF? AM? Radio ? ? ? FM? Cassette ? CD Changer? -A Rear Audio Control Panel Body Electrica
16、l ?Audio System RSAS System Diagram (with navigation system) Speaker : AVC-LAN : Sound Signal Wireless Wired 6 CD- Changer Headphone Terminal Remote Controller Radio and Player -A RSA Controller Headphone Body Electrical ?Audio System RSAS The RSA controller assembly receives signals from the remote
17、 controller and outputs sound signals to the wireless headphone -A Sound signal output (to wireless headphone) Control signal input (from remote controller) Infrared Signals Body Electrical ?Audio System RSAS Rear audio control panel Headphone Terminals Volume Switches -A Body Electrical ?Audio Syst
18、em RSAS This system is controlled only by remote controller -A Chassis ?A750E/F Automatic Transmission Feature 5-speed automatic transmission (Super ECT ) -A Chassis ?A750E/F Automatic Transmission Gear Ratio Fuel economy and dynamic performance have been improved : 2.804 Wide Gear Ratio A340F A750E
19、/F Total Gear Ratio (Differential Included) Acceleration Performance Fuel Economy 1st2nd3rd4th 5th : 3.520 1st : 0.716 : 0.705 143 -A Chassis ?A750E/F Automatic Transmission Specification Engine Type2UZ-FE Drive Type2WD / 4WD (Full-time) TransmissionA750E / A750F 5th0.716 Fluid TypeATF Type T-IV 1st
20、3.520 2nd 3rd1.400 Reverse3.224 Fluid Capacity (include differential) Litter (US qts, lmp. qts) 10.8 (11.4, 9.5) 4th 2.042 1.000 Gear Ratio (Counter Gear Ratio Included) -A Chassis ?A750E/F Automatic Transmission Shift Pattern Gate type shift lever is newly used -A Shift Indicator Light Chassis ?A75
21、0E/F Automatic Transmission Torque Converter Compact, lightweight and high-capacity torque converter has been used newly A750E/FA343F Optimizing the fluid passages and the impeller configuration -A Chassis ?A750E/F Automatic Transmission Oil Pump (Trochoid Type) The crescent has been discontinued. A
22、s a result oil pump has made more compact and the driving torque has been reduced Drive Gear Driven Gear Pump Body: Made of aluminum to reduce the weight Stator Shaft Assembly Crescent discontinued -A Chassis ?A750E/F Automatic Transmission Planetary Gear Unit The 5-speed configuration has been achi
23、eved without increasing the number of planetary gear : Brake : Clutch : One-way Clutch A750 A650 Input Input Output Output 3 Planetary Gears -A Chassis ?A750E/F Automatic Transmission Planetary Gear Unit The 5-speed configuration has been achieved without increasing the number of planetary gear : Br
24、ake : Clutch : One-way Clutch A750 A340 Input Input Output Output 3 Planetary Gears -A Chassis ?A750E/F Automatic Transmission Planetary Gear Unit The 5-speed configuration has been achieved without increasing the number of planetary gear (Practically the same as the previous models) InputOutput 3 P
25、lanetary Gears : Brake : Clutch -A Chassis ?A750E/F Automatic Transmission Planetary Carrier The Front planetary carrier has been made or aluminum alloy to reduce the weight Aluminum Alloy Two Pinions -A Chassis ?A750E/F Automatic Transmission Various Control A750E/F are performing the following con
26、trols Centrifugal Fluid Pressure canceling Line Pressure Optimal Control Clutch Pressure Control Flex Lock-up Clutch Control AI (Artificial Intelligence) -shift Control -A Body Electrical ?Multi Display and Navigation System General 7.0 inch LCD screen with pressure sensitive touch panel DVD voice navigation -W Body Electrical -W ?Multi Display and Navigation System Discrimination Application model ?PRADO (Common use with GX470) ?Land Cruiser 100 (Common use with LX470)