2. N.A., Europe, Australia, etc.
What is the Prius?
History of Prius
Oct. 1997
Aug. 2000
Aug. 2003
NHW10
NHW11
NHW20
N.A., Europe, Australia, etc.
Domestic
Various countries
28.0 km / L
29.0 km / L
35.5 km / L

3. What is the Prius? Hybrid Line-up 1997 2001 2003 2004 2006 1997 2001
(NHW10)
Estima
Prius
(NHW20)
RX400h
Crown
Alphard
Highlander
Camry
1997
2001
2003
2004
2006

4. What is the Prius?
Concept
Greater Fuel Economy
Higher Power

5. 0 – 100 km/h Acceleration (sec.)
What is the Prius?
Acceleration and Fuel Consumption
Good fuel efficiency 40
Prius
Honda Civic HV 30
10 – 15 Mode Fuel Efficiency
(km/L) 20
Yaris (1.5L)
Camry (2.4L) 10 16 14 12 10
Good acceleration
0 – 100 km/h Acceleration (sec.)

6. NHW20 L – A H E E B A What is the Prius? 1 2 3 4 5 6 7 8 1
Basic Model Code
NHW20: 1NZ-FXE 5
Gear Shift Type
E: Automatic, Column 2
Steering Wheel Position
L: Left-Hand Drive
R: Right-Hand Drive 6
Grade
E: Standard 7
Engine Specification
B: Atkinson 3
Model Name
A: PRIUS 8
Destination
-A: U.S.A.
-K: Canada
-W: Europe and General Countries
-Q: Australia 4
Body Type
H: 5-door Hatch Back

7. What is the Prius? TOYOTA Hybrid System Powertrain Engine
1.5 liters gasoline engine
Transaxle
Includes AC 500V motor

8. What is the Prius?
Spacious interior cabin layout designed for improved safety.

9. What is the Prius? Driving method
The vehicle can run on gasoline only, and does not need to be recharge.
If the battery charge drops. The engine drives the generator, which recharges the battery.

10. What is the Prius? Driving method
The vehicle may be driven while the “READY” light is ON.
The engine will stop while the vehicle is stopped, in order to improve fuel economy
The engine starts up automatically after the vehicle starts off.

11. What is the Prius? THS II Operations
Strong points of both series/parallel systems realized in one system.

12. What is the Prius? Series Hybrid System
In this system, the engine is used to supply electrical power to the motor, which then turns the wheels.

13. What is the Prius? Parallel Hybrid System
The wheels are driven by both the engine and the motor.

14. What is the Prius? THS II Operations Motor assists the engine torque.
(N·m)
Motor
400
300
200
100
Engine
2000
4000
6000
Speed (rpm)

15. Power Splitting Device
What is the Prius?
THS II Components
The MG1 is actually located between the engine and the power-dividing mechanism.
HV Battery
Generator (MG1)
Engine
Inverter
Power Splitting Device
Motor (MG2)

16. What is the Prius? THS II Components (Engine) 1NZ-FXE Atkinson
In-line 4-cylinder
16-valve DOHC
1.5 liter gasoline engine

17. What is the Prius? THS II Components (Transaxle)
Includes AC 500V motor, generator, planetary gear, reduction gears and final gear.
Uses a continuously variable transmission mechanism to achieve smooth and quiet operations.
MG1 (AC 500V)
MG2 (AC 500V)

18. What is the Prius? THS II Components (HV Battery)
Full sealed nickel metal hydride (Ni-MH) battery
Approx. DC 200V
Located inside trunk behind rear seat

19. What is the Prius? THS II Components (Inverter Assembly) Inverter
DC  AC high voltage
Variable-voltage System
DC 200V stepped up to
DC 500V
DC-DC Converter
DC 200V stepped down
to DC 12V
A/C Inverter
DC  AC to drives the
A/C compressor

20. What is the Prius? THS II Operations (Outline)
(Engine starting and idling)
MG1 operates as starter motor, turning engine to start.
MG1 generates when idling, then engine stops after warm-up.

21. What is the Prius? THS II Operations (Outline)
(Engine starting and idling)
Click!
Movie

22. Coolant Heat Storage Tank with Water Pump
What is the Prius?
Engine
Coolant Heat Storage System
The hot coolant stored in the tank heats cylinder head before engine starting to clean emission
Coolant Heat Storage Tank with Water Pump
Heated

23. What is the Prius? Fuel System Vapor reducing fuel tank system
Fuel tank separated into two parts to reduce vapors.
Normal tank capacity is 45 liters; tank capacity decreases by 5 liters at -10C.

24. Shift Lever (Momentary Type)
What is the Prius?
E-shift
Momentary type shift lever is realized by adoption of E-shift
Parking Switch
Shift Lever (Momentary Type)

25. What is the Prius? Brake System ECB (Electrically Controlled Brake)
Hydraulic brake pressure is controlled by electrical signal and cooperate regenerative brake
Driver’s Demand
Brake Actuator
Hydraulic Brake Control
Skid Control ECU
HV ECU
Vehicle Condition
Regenerative Brake Control

26. What is the Prius? Steering System EPS (Electric Power Steering)
Assisted by 12V DC motor (Elimination of oil circuit)
EPS ECU
EPS Motor

27. (with brake pedal depression)
What is the Prius?
Push Button Start System
OFF, ACC, IG-ON, READY condition is switched by pushing the power switch
ACC
IG-ON
OFF
READY
Push the power switch
(with brake pedal depression)
Power mode is switched
Insert the key

28. Model Outline Smart Entry & Start System
This system can lock / unlock doors, or start the hybrid system by carrying the smart key
Door Lock / Unlock
Start Hybrid System
Back Door Open

29. What is the Prius? Air Conditioning System
Auto A/C provided more comfortable driving

30. What is the Prius? Air Conditioning System
Compact, high-performance scroll compressor driven by motor.

31. What is the Prius?
Multi Display
Energy Monitor

32. What is the Prius?
Multi Display
Fuel consumption indicator

33. What is the Prius? Auxiliary Battery Sealed-type battery NOTE:
Refrain from quick charging.
Never use an ordinary battery.
Reason:
Separator soaked (Battery fluid) type to prevent vapor (Battery fluid cannot be replenished).

34. What is the Prius? Multiplex Communication System
Power Window Master Switch
Wireless Door Lock Receiver
EPS ECU
HV ECU
J/C
J/C
Brake ECU
Yaw Rate Sensor
(G Sensor)
Body ECU
Steering Angle Sensor
Transponder Key ECU
Smart ECU
Battery ECU (RHD)
DLC3
Security ECU
Meter ECU
Engine ECU (ECM) (LHD)
Battery ECU (LHD)
Power Source Control ECU
A/C ECU
Gateway ECU
Parking Lock ECU
Engine ECU (ECM) (RHD)
Multi Display
Audio Head Unit
Audio Amplifier
Navigation ECU
:Local Communication
:BEAN
:CAN
:AVC-LAN

35. High Voltage Wire Harness High Voltage Wire Harness
What is the Prius?
Service Point
Power Cable
Orange-colored wire harness/connector
High voltage circuit
High Voltage Wire Harness
High Voltage Wire Harness

36. What is the Prius? Service Point Service plug
Wear insulated gloves when disconnecting the service plug to prevent against electrical shock.
Service Plug

37. Touch & Feel