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LS600hL / LS600h CHASSIS

LS600hL / LS600h CHASSIS. Electric Oil Pump. L110F HYBRID TRANSMISSION. Overall L110F hybrid transmission mainly consists of the following components. MG1. Power Split Device. 2- stage Motor Speed Reduction Device. MG2. Mechanical Oil Pump (driven by the engine). Hydraulic Control Unit.

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LS600hL / LS600h CHASSIS

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  1. LS600hL / LS600hCHASSIS Lexus TMME Europe Presentation

  2. Electric Oil Pump L110F HYBRID TRANSMISSION • Overall • L110F hybrid transmission mainly consists of the following components MG1 Power Split Device 2-stage Motor Speed Reduction Device MG2 Mechanical Oil Pump(driven by the engine) Hydraulic Control Unit Transfer (LF1A)

  3. L110F HYBRID TRANSMISSION *1: These are tentative values.*2: Weight shows the figure with the engine oil and engine coolant fully filled. • Specification

  4. L110F HYBRID TRANSMISSION • Gear Train Short Pinion Gear B1 B2 Planetary Carrier Pinion Gear Engine MG1 MG2 Planetary Carrier Output Shaft Front Sun Gear Damper Long Pinion Gear Rear Sun Gear Sun Gear Ring Gear Ring Gear 2-stage Motor Speed Reduction Device Power Split Device

  5. L110F HYBRID TRANSMISSION • Gear Train B1 B2 MG2 Engine MG1 To Transfer • 2-stage Motor Speed • Reduction Device • Front Sun Gear: B1 • Rear Sun Gear: MG2 • Planetary Carrier: Wheel • Ring Gear: B2 • Power Split Device • Sun Gear: MG1 • Planetary Carrier: Engine • Ring Gear: Wheel

  6. L110F HYBRID TRANSMISSION 2-STAGE MOTOR SPEED REDUCTION DEVICE The 2-stage motor speed reduction device controls the MG2 motor speed in two stages, between the low-speed range and high-speed range. • Gear Train Short Pinion Gear Planetary Carrier(connected to the propeller shaft) POWER SPLIT DEVICE The power split device distributes the engine power as appropriate to directly drive the vehicle as well as the generator. Long Pinion Gear Rear Sun Gear(connected to the MG2) Pinion Gear Front Sun Gear(connected to the No. 1 brake [B1]) Ring Gear(connected to the MG2 and output shaft) Ring Gear(connected to the No. 2 brake [B2]) Sun Gear (connected to the MG1) Planetary Carrier(connected to the engine)

  7. For -A 42.3 (26.3) 73.0 (45.3) For -W 49.3 (30.6) 85.2 (52.9) L110F HYBRID TRANSMISSION • 2-stage Motor Speed Reduction Device • Realize high speed and high torque by compact MG2 NOTE: These are fundamental charts. NORMAL DRIVING EXAMPLE Torque Range of Lo Gear Drive(for high torque) Hi Gear Position Range of Hi Gear Drive(for high speed) Lo Vehicle Speed [km (mph)] Vehicle Speed

  8. SL2 SL1 B1 L110F HYBRID TRANSMISSION • 2-stage Motor Speed Reduction Device • B1 and B2 Control HV ECU Linear Solenoid Valve Control Valve B2 Line Pressure

  9. B1 B2 B1 B2 MG2 B1 B2 B1 B2 MG2 L110F HYBRID TRANSMISSION • 2-stage Motor Speed Reduction Device • Operation [Lo Gear] [Hi Gear]

  10. + rpm, Torque - L110F HYBRID TRANSMISSION • Nomographic Chart • Power Split Device MG1 2.294 1000 1 2294 Sun Gear (MG1) Carrier (Engine) Ring Gear (Wheel)

  11. B1 B2 MG2 - rpm, Torque + L110F HYBRID TRANSMISSION • Nomographic Chart • 2-stage Motor Speed Reduction Device • Lo Gear B2 B1 1000 3.90 1 3900 Carrier (Wheel) Ring Gear (Lo) Front Sun Gear (Hi) Rear Sun Gear (MG2) Reduction Ratio: 3.900

  12. - rpm, Torque B1 B2 MG2 + L110F HYBRID TRANSMISSION • Nomographic Chart • 2-stage Motor Speed Reduction Device • Hi Gear B2 B1 1000 1.9 1 1900 Carrier (Wheel) Ring Gear (Lo) Front Sun Gear (Hi) Rear Sun Gear (MG2) Reduction Ratio: 1.900

  13. + - rpm, Torque rpm, Torque + - L110F HYBRID TRANSMISSION • Nomographic Chart • Total nomographic chart B2 B1 Linked Sun Gear (MG1) Carrier (Engine) Ring Gear (Wheel) Carrier (Wheel) Ring Gear (Lo) Front Sun Gear (Hi) Rear Sun Gear (MG2)

  14. L110F HYBRID TRANSMISSION Power Split Device MG1 • Lubrication System • L110F has two oil pumps • Mechanical oil pump: Driven by the engine • Electric oil pump: Supplies hydraulic pressure when the engine is stopped Engine Oil Pump Drive Gear Mechanical Oil Pump Mechanical Oil Pump Electric Oil Pump

  15. L110F HYBRID TRANSMISSION • Lubrication System • Electric oil pump is controlled by the oil pump controller in accordance with the signal from HV ECU Motor Speed (Duty Signal) Electric Oil Pump HV ECU Oil Pump Controller OPM1 SIG OPST OPST OHW Oil Pump State (Duty Signal) OHU OHV U V W TOPM Coil Temp. Sensor Motor (3 Phase) Motor Position Sensor Oil Pump Controller

  16. HV ECU Oil Pump Controller Duty Signal L110F HYBRID TRANSMISSION • Lubrication System • Electric oil pump • Oil pump state signal contains 2 information (motor state information and motor speed information), and these information are sent alternately to the HV ECU OIL PUMP STATE SIGNAL 2 2 2 1 1 1 1: Motor State Info. 2: Motor Speed Info.

  17. L110F HYBRID TRANSMISSION • Lubrication System • Electric oil pump • Motor state information / motor speed information Low power supply Controller overheat 1 Controller overheat 2 1, Motor State Info. System malfunction System normal 5,000 4,000 2, Motor Speed Info. Motor Speed (rpm) 3,000 Motor Stop 2,000 1,000 0 0 10 20 30 40 50 63 71 79 87 95 Motor State Signal to HV ECU (Duty: %)

  18. M L110F HYBRID TRANSMISSION • Lubrication System • Hydraulic circuit • Both pumps are placed parallel with a check valve to avoid loss of pressure through the inoperative pump S1 Line Pressure To SL1 and SL2 Check Valve Mechanical Oil Pump Electric Oil Pump

  19. L110F HYBRID TRANSMISSION • Lubrication System • ATF cooler is used to increase cooling performance. Therefore, the transmission enables high output. Electric Oil Pump Radiator Oil Cooler Inlet Hose Oil Cooler Outlet Hose ATF Cooler

  20. L110F HYBRID TRANSMISSION • Solenoid Valve • 3 solenoid valves are used LOWER VALVE BODY Solenoid Valve SL1 Solenoid Valve SL2 Solenoid Valve S1

  21. L110F HYBRID TRANSMISSION • ATF Pressure Switch • 3 pressure switches are used to detect operation condition of hydraulic unit LOWER VALVE BODY ATF Pressure Switch 3 ATF Pressure Switch 1 ATF Pressure Switch 2

  22. S8 (D) S7 S6 S5 S4 S3 S2 S1 S4 S5 S6 S7 L110F HYBRID TRANSMISSION • Sequential Shiftmatic System • In the S range, 8 stages of engine braking force can be selected by operating the shift lever. REFERENCE The driver selects the “S” range position by moving the shift lever. At this time, the engine brake range position is selected from the S4 to S7 range depending on the vehicle speed. “S” Range 0 -A Engine Braking Force Shift Range -W S4 S5 S6 S7 Strong 0 50 (31) 100 (62) 150 (93) 200 (124) Low High Vehicle Speed [km/h (mph)] Vehicle Speed

  23. Confidential L110F HYBRID TRANSMISSION • Sequential Shiftmatic System • The engine brake force control WEEK ENGINE BRAKE FORCE STRONG ENGINE BRAKE FORCE Inverter Inverter Inverter Inverter Engine Engine MG1 MG2 MG1 MG2 Fuel Cut Fuel Cut

  24. L110F HYBRID TRANSMISSION • Sequential Shiftmatic System • This system limits the switching of the engine brake range if the vehicle is cruising at a speed that is higher than the limit speed, and informs the driver by sounding an alarm. • If the vehicle accelerates from engine brake range position 1 through 5, the engine brake range goes up automatically to position 6 in accordance with the vehicle speed. At this time, the shift range indicator light will also switch.

  25. L110F HYBRID TRANSMISSION • Mode Select Switch • Use the pattern select switch to select the driving mode that best suits the driving and road conditions Normal PWR System Output SNOW Mode Select Switch Accelerator Pedal Opening Angle

  26. L110F HYBRID TRANSMISSION • Mode Select Switch • Deceleration control that changes the extent of the engine brake force in accordance with the mode select switch is newly adopted. • The PWR mode increases the deceleration rate in order to increase the range of the engine brake force applied through accelerator operation. Acceleration Normal /SNOW Vehicle Speed 0 PWR Mode Select Switch Deceleration

  27. L110F HYBRID TRANSMISSION • Special Notes on Service of Hybrid Transmission • Inspection • If the ATF leak out, replace the hybrid transmission. • The ATF is the maintenance-free type.(except Australia and New Zealand) • ATF adjustment • Transmission requires TOYOTA Genuine ATF WS. • Maintain the vehicle in a horizontal position while adjusting the fluid level. • Transmission requires ATF adjustment when the following cases: • Oil bleed on the transmission • After servicing the transmission • Transmission is replaced, oil cooler hose is reinstalled, ATF is replaced NOTE: L110F hybrid transmission is assembly supply part. Therefore, do NOT disassemble the transmission.

  28. L110F HYBRID TRANSMISSION • ATF Adjustment Procedure • Outline of ATF adjustment procedure NOTE: New transmissions are already filled with transmission fluid. OUTLINE OF ATF ADJUSTMENT CASES ATF Replacement* 1. Drain and Refill the ATF ATF Leakage (Little bit) Transmission is replaced 2. ATF temperature check Oil cooler hose is reinstalled 3. Adjust the ATF level *: Only for Australia and New Zealand models

  29. Front L110F HYBRID TRANSMISSION • ATF Adjustment Procedure • Overflow plug: Adjusting ATF • Oil cooler outlet hose: Refilling ATF • Drain Plug: Draining ATF Oil Cooler Outlet Hose Overflow Plug Drain Plug

  30. 1. Drain and Refill the ATF 2. ATF temperature check 3. Adjust the ATF level L110F HYBRID TRANSMISSION • ATF Adjustment Procedure • Refill ATF (ATF Replacement) Lifts the vehicle Drain the ATF Disconnect the oil cooler outlet hose and remove the overflow plug Fill up ATF from the oil cooler outlet hose until overflowing from the overflow plug hole Install the overflow plug Refill ATF from the refill hole* Connect the oil cooler outlet hose Lowering the vehicle *: Refer to the repair manual for the refill amount

  31. P R N + 1. Refill the ATF S D - 2. ATF temperature check 3. Adjust the ATF level L110F HYBRID TRANSMISSION • ATF Adjustment Procedure • Fluid temp. check 1.5 sec. or less D Connect TC, TS and CG of DLC3 Turn the power switch ON (READY ON state) Shift alternately the shift lever from N to D range N 6 sec. or more “D” Range Indicator Shift to P range and disconnect terminal TC Warm-up the ATF until the “D” range indicator lights up

  32. 1. Refill the ATF 2. ATF temperature check 3. Adjust the ATF level L110F HYBRID TRANSMISSION • ATF Adjustment Procedure • Fluid level check • Check that ATF is a proper temperature • Lift up the vehicle with engine running • Remove the overflow plug • If ATF will overflows, wait and proceed to the Step4 • If no ATF overflow, turn the power switch OFF and add ATF from the oil cooler outlet hose • Install the overflow plug Overflow Tube Oil Pan

  33. SERVICE POINT(L110F HYBRID TRANSMISSION) • Removal of L110F Remove the Engine with L110F Separate the Engine and L110F NOTICE: Do NOT disconnect the cables at the hybrid transmission.

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