TNV TIER3 INTRODUCTION
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- Lester Barrett
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1 TNV TIER3 INTRODUCTION
2 ECO governor system operation Actuator Eco-Governor Fuel Pomp Rack position Speed Intake EGR-Valve Re-circulation Exhaust Inj.Nozzle Liner Piston Key Switch Switch Starting Aid CW Temp. Display Starter Accelerator
3 NOx Reduce Measure ECO governor system operation =EGR (Exhaust Gas Recirculation)= DisplacementLitre NV1 NV2 NV3 ECU Electronic Control EGR Electronic Control EGR Valve Coolant temp. Intake Air Exhaust Gas Engine Speed Engine Load Output EGR domain Engine Speed
4 ECO governor system operation EGR valve EGR valve is operated by step motor. Valve opens with 54 steps and is controlled pending on engine speed and load factor (=determined as percentage from rack idl, max, min and Ract (relative to Rmin). Load factor is delivered as PWM signal from the E-ECU. Below 60 C EGR valve will not be opened.
5 ECO governor system operation CW Temp. CSD Accelerat or Actuator Act Fuel Spring Act Fuel Actuator Amp. Rack Position Speed Revolution Gear Rack
6 Battery Fuse:80A B S Fuse:10A Fuse:10A Fuse:60A R B BR C Key SW Pre Off On R B BR C ECO governor system operation Starter ( Yanmar genuineness) IG P Alternator Yanmar genuineness Starter Relay Main Relay Sub Relay Start Panel Starting aid Relay Air heater(500w) Rack actuator Relay Accel. sensor After heat option E7 E34 E20 E8 E10 E44 E38 E35 IGNSW MAIN-RLY APP-OP1 PREHT-LMP STARTSW RENRPM AIRHT-RLY AVCC APS VB E48 SHUDNSW FAIL- LMP LOAD- M NRPM -M E15 E23 E12 E32 E22 Engine stop 1 Pre- heat lamp Failure lamp Load monitor Engine speed monitor Fuel Injection Pump Rack Actuator Rack position Engine speed CSD E33 E42 E43 E36 E19 E18 E41 RACK- RLY RACKSOL AVB RPS NRPM NRPM - GND CSD- CL APP- OP2 APP- IP1 APP- IP7 APP- IP2 APP- IP3 APP- IP4 E2 E24 E13 E14 E9 E17 Speed selection lamp Droop switch Rmax1 switch Rmax2 switch Engine speed1 switch Engine speed2 switch CW Temp EGR Valve Marked w/ are necessary for engine control. E16 E28 E31 E21 E11 E1 E37 E26 E27 E25 RET GND- A STPM -A D REAN TAIR TEGR TW APP- IP5 APP- IP6 CANH RECAN CANL RxD TxD N.C. N.C. E5 E6 E40 E30 E39 E3 E4 E29 E46 Reverse Droop switch Speed selection switch Service tool Coupler Painting parts are necessary. GND E45 GND- P E47
7 (dis)advantages NEW technology Torque curve regulation Selective Governor Mode Img. Droop Const. regulation Iso-chronous Mech. Governor Droop Output ON = isochronous Speed Regulation is 0% on the speed (constant)
8 (dis)advantages NEW technology Torque curve regulation Selective Governor Mode Img. Droop Const. regulation Iso-chronous Mech. Governor Droop Output OFF = droop Speed Regulation is approx. 7% (=standard)
9 ECO governor system operation Transition control (avoid spill of fuel) Fuel Increase for Engine Start Fuel Injection Amount Mech.Gov. at Full - Throttle ECO Gov Engine Speed min -1 Excessive Fuel
10 ECO governor system operation Starter control Complete Rack Rack Self Test Self Test Starter Starter Starter Control Control ON maximum 1.0 Complete Engine Start min -1 Key SW Starting Aid Control Standard
11 ECO governor system operation Engine SHDW Vcc Ext. SW Immobilizer NC Contact Engine STOP ECU Speed Control Function CAN Sig. Speed External SW Accelerator Speed Control / speed selection Deceleration Const. Speed 12 (ex:1800min ECU -1 ) Deceleration 2 Fail Safe Action Immobilizer Open : Engine STOP Emergency (option) E15 Short : Engine STOP STOP (STD) E13 Acceleration Accelerator Position Const. Speed 1 Const. One Touch Speed (ex:low idle) Speed Control External SW Setting CAN Sig. Compatible only NO type = terminal E13 Emg. Stop Speed Enable SW Turn.Back Deceleration Speed 1 SW Auto/One Touch Deceleration Speed 2 SW Speed Control off Engine STOP off Accelerator off off Deceleration 1 on on on off off on Deceleration 2 Const. Speed 1 on on Const. Speed 2 :Option :Generator Standard
12 ECO governor system operation Low (up) High (down) idle-speed Control option Cold State Shorten Warm up Reduce White Smoke WO Temp. WO Temp. Hi-idle Speed Purpose Speed Automatically Low-idle Manually Idle Speed Hi-idle Speed Down Low-idle Speed Up Accelerator Position WO Temp.
13 ECO governor system operation Starting Aid Control Standard Easy Cold Start After Heat ON (option) t=80or Air Heater CW Pre Temp10 Heat ON Time is controlled by CW Temp. Reduce Starting White Aid Smoke Lamp Pre Heat Time CW Temp. Air Heater Grow Glow PlugON Engine Key Under Start SW Starting Complete ON Air Heater Key SW CW Temp.
14
15 1 All the data including injection quantity is stored in Product Data Management(PDM) before shipping, therefore when replacing FOP, new compensation data shall be re-stored in PDM. FOP Database (PDM) Replacement Service tool and diagnostics Individual Control Controlled by model program map Comp. data Feedback Compensation data 2 Download Control program Map Compensation data Blank ECU When replacing ECU with new one in the field, the data shall be transferred from old one to new one or download the data for applicable engine serial number.
16 Service tool and diagnostics Function of Service tool Diagnosis Tool Yanmar s unique tool Converter Microsoft Windows PC (2000/XP) Tool software (CD-ROM etc. Adoption of KWP 2000 Keyword Protocol 2000 diagnosis Monitor display Error code display Test for diagnosis Data logging Special signal converter is required. Software can be distributed by CD-ROM and the Internet.
17 Service tool and diagnostics Trouble Fail Safe Limp Home Engine Shut Down Customer Panel as much as possible keep running Blink Engine Trouble Lamp Indicate Trouble Group Service Tool Connector Adapter (USB-CAN) WindowsPC Trouble Details Diagnostics Indicate in other ECU
18 Service tool Customer Panel Service tool and diagnostics Blink Engine Trouble Lamp Indicate Trouble Group
19 Service tool Customer Panel Service tool and diagnostics Blink Engine Trouble Lamp Indicate Trouble Group Please explain what kind of failure is indicated?
![[ Configuration ]](/docs-images/84/89683904/images/20-2.jpg "Signal converter")
20 Service tool and diagnostics Service tool Diagnostic & monitoring software [ Configuration ] Signal converter Diagnosis tool kit Connecting wire CD-ROM Windows ECU
21 Service tool and diagnostics Historical Data Monitor Diagnostics Test
22 Service tool and diagnostics System details (Engine / FIE / ECU) ECU system / ECU ID information
23 troubleshooting What to do with the indicated failures? Indicated failure (=DTC or flash pattern) DTC detection conditions Operation condition Failure condition Test time Flash pattern required system setting. system / failure condition which causes the fault. minimum time needed to activate DTC number of flashes indicated Check point which parts / item to check
24 troubleshooting What to do with the indicated failures? Fault handling On-error mode Engine running mode when failure is active. as-is / restricted / stop Limited operation described how operation is restricted Fail release which setting is required to release the failure.
25 Indicated failure P0122/4 troubleshooting Low voltage for accelerator sensor
26 Indicated failure P0122/4 troubleshooting Low voltage for accelerator sensor Possible causes Accelerator sensor faulty Accelerator sensor signal wires disconnected or grounded. Input voltage (5V) signal disconnected or grounded Ground wire short cuts to power supply Check method Check accelerator sensor function (resistance value /continuity) Check accelerator sensor connection (disconnected or shortcut) Check E38 pin (disconnected or grounded) Check E28 pin (power supplied to pin)
27 Indicated failure P0122/4 troubleshooting Low voltage for accelerator sensor
28 troubleshooting Indicated failure P117/4 Indicated failure P0562/1 Low voltage for CW sensor Low power supply for ECU
series Complies with EPA Tier3 Complies Optionally ELECTRONIC CONTROL SYSTEM
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