Koji Toyoshima. Toyota Motor Corporation. Toyota Media Tour 2015 Tokyo Motor Show. Chief Engineer / Product Planning Div.

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1 Toyota Motor Corporation Chief Engineer / Product Planning Div. Koji Toyoshima 1

2 First Generation Second Generation Third Generation 2

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6 1. Eye-catching design Four great things about the new 2. Fun to drive 3. Excellent fuel economy 4. Well-equipped 6

7 Width: 1,760mm (+15mm) Cowl height lowered by 62mm Height lowered by 20mm Rear spoiler height lowered by 55 m Hip point height lowered by 59mm Luggage Space: 502 (+56) Height: 1,470mm (-20mm) Height of powertrain components lowered by 10mm Wheelbase: 2,700mm Luggage compartment floor lowered by 110mm Length: 4,540mm (+60mm) 7

8 1. Design 8

9 1. Design 9

10 1. Design 10

11 1. Design 11

12 1. Design 12

13 2. Basic Performance 13

14 2. Basic Performance Distribution of frontal crash energy via multi-load paths Bumper reinforcement Point of impact Distribution of energy #2 cross-member Point of impact Distribution of energy 14

15 2. Basic Performance Completely Redesigned Body Frame Structure Squared reinforced annular structure Rear annular structure 15

16 2. Basic Performance Increased use of Hot Stamped Parts 16

17 2. Basic Performance Increased use of Laser Screw Welding (LSW) Number of welding points increased by 30% 17

18 2. Basic Performance New rigid frame structure Expanded use of high tensile strength steel sheets Body torsional stiffness improved by approximately 60% 18

19 2. Basic Performance Double wishbone rear suspension 19

20 2.Basic Performance Noise absorption and insulation material in the engine compartment Noise absorption and insulation material Sound insulating material Heavy Sheet Film Sound absorbing and insulating material Soft Layer Hard Layer Heavy Sheet Film Soft Layer 20

21 2. Basic Performance Body sealer Floor silencer Current Prius Current Prius Sections where sealer is now used New Prius 21

22 3. Hybrid System Emotional driving experience Low fuel consumption New hybrid effect Hybrid system 22

23 3. Hybrid System High efficiency Compact and lightweight system Excellent environmental performance 23

24 3. Hybrid System Fuel Efficiency Gains Achieved with the New Hybrid System (km/ ) Target Fuel consumption measured using The Japanese JC08 cycle Vehicle 2.6% 5.0% Transaxle Engine 3.2% Motor 2.4% PCU 5.0% 40km/ Hybrid battery Hybrid system management New Prius Current Prius 24

25 3. Hybrid System Improvements to maximum thermal efficiency of engines over time (%) Maximum thermal efficiency First generation Prius 1NZ-FXE Second generation Prius 1NZ-FXE Current Prius 2ZR-FXE 38.5% :Toyota gasoline engines New Prius 2ZR-FXE 40% (Year) : Competitors gasoline engines 25

26 3. Hybrid System Maximum Thermal Efficiency of 2ZR-FXE Engine: 40% Improved combustion and knock control Toyota-first dual cooling system Reduced friction 26

27 3. Hybrid System New Multi-Axis Transaxle Length reduced by 47mm Mechanical loss reduced by approx. 20% Power split device Generator Parallel motor reduction gear format Motor 27

28 3. Hybrid System Compact and Lightweight High-Output Motor Development of rolling-coil structure Loss reduced by over 20% Weight reduced by over 20% 28

29 3. Hybrid System Newly Developed PCU Loss reduced by approx. 20% Size reduced by 33% Auxiliary battery moved to engine compartment Engine Upper cover Inverter case Smoothing capacitor Control circuit Power stack (cooler and power cards) Current sensor PCU Auxiliary battery Converter case Lower cover Reactor DC/DC converter 29

30 3. Hybrid System Newly Developed Nickel-Metal Hydride and Lithium-Ion Battery Nickel-Metal Hydride *Lithium-ion battery availability depends on each market Lithium-Ion Improved output 30

31 3. Hybrid System Newly Developed Nickel-Metal Hydride Battery ( ) Battery volume Size reduced by 10% 39.4 Current Prius 10% 35.5 New Prius Amount charged per unit of time Charging performance improved by 28% 1.00 Current Prius 28% 1.28 New Pius Note: assuming a battery temperature of 25 C 31

32 3. Hybrid System Relocated Battery -55mm Luggage area 502 (+56 ) +110mm NiMH & Li-ion Luggage area capacity increased by 56 Battery Current Prius New Prius 32

33 3. Hybrid System Higher Engine Stop Speed Vehicle speed (km/h) Higher frequency of engine stops Engine speed (rpm) Time 33

34 3. Hybrid System 34

35 3. Hybrid System 35

36 3. Hybrid System 36

37 3. Hybrid System 37

38 3. Hybrid System 38

39 4. Advanced Equipment Toyota Safety Sense P (on Japan models) Pre-collision system with pedestrian detection Radar cruise control Lane departure alert Automatic high beams 39

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