Hybrid Transaxle

Hybrid Transaxle Overview P112 type Components: MG (Motor Generator) 1 Power-dividing Mechanism (Planetary Gears) Reduction Mechanism Differential Mechanism Fluid type: ATF WS Capacity: 3.8 liters

Hybrid Transaxle Overview P112 type Chain-drive Sprocket Planetary Gears MG2 MG1

Hybrid Transaxle Overview P112 type Counter Drive Gear Chain-driven Sprocket Counter-driven Gear Reduction Mechanism Final Drive Pinion Gear Final Ring Gear Differential Mechanism

Hybrid Transaxle MG1 / MG2 Compact and lightweight, highly efficient AC500V motor generator MG1 MG2

Hybrid Transaxle MG1 Main operations  Generator When engine starting  Starter Stator Coil MG1 Rotor Speed Sensor

Hybrid Transaxle MG2 When driving  Main power to engine power (Starting off) or provides supplementary When braking  Converts kinetic energy to electrical energy MG2 Stator Coil Rotor Speed Sensor

Generator, Engine Starter Hybrid Transaxle MG1 / MG2 Specifications Item MG1 MG2 Type Synchronous AC Motor  Function Generator, Engine Starter Generator, Wheel Drive Rated Voltage Max. AC 500 V Maximum Output [kW (PS) / rpm] — 50 (68) / 1200 ~ 1540 Maximum Torque [N·m (kgf·m) / rpm] 400 (40.8) / 0 ~ 1200 Maximum rpm [rpm] 10,000 6,700 Cooling System Water-cooled

Hybrid Transaxle MG1 / MG2 MG1 / MG2 include stator coil, permanent magnet Stator Coil Permanent Magnet (Rotor)

Hybrid Transaxle MG1 / MG2 MG1 / MG2 rotate via 3-phase alternating current

N S Hybrid Transaxle MG1 / MG2 Stator coil polarity and magnetic strength changes moment by moment N S

N S Hybrid Transaxle MG1 / MG2 Rotor of permanent magnet is rotated via attraction / repulsion from stator coil N S

Hybrid Transaxle MG1 / MG2 N S

Hybrid Transaxle MG1 / MG2 N S

Hybrid Transaxle Speed Sensor (Resolver) Detects position, speed and direction of MG1 / MG2 rotors Speed Sensor (for MG2) Speed Sensor (for MG1) MG1 and MG2 has speed sensor (resolver).

Hybrid Transaxle Speed Sensor (Resolver) Comparing the S and C waveforms against the excitation coil reference waveform Rotor Excitation Coil -C -S +C +S S +S +C The position of the rotor can be detected by comparing the S and C waveforms against the excitation coil reference waveform -S -C C Excitation Coil Manual Auto

Hybrid Transaxle Transaxle Damper Installed at location of conventional clutch Reduces shock which occurs when kinetic energy is transmitted

Hybrid Transaxle Cooling System Cooling circuit is used for both MG1 / MG2 Separate cooling system from engine Reservoir Pump MG1 / 2 Radiator Inverter Reservoir Tank Coolant Type: SLLC Coolant maintenance schedule is same as engine coolant. Electric Water Pump Radiator

Hybrid Transaxle Oil Pump Forced lubrication system via trochoid pump used to lubricate main shaft bearings Oil pump functions when engine is being driven Oil Pump Oil pump driven by engine.