1. The Sustainable Design And Concept Of The Toyota Prius
Stephen Dodd
Technology Context
University Of Portsmouth

2. The First Petrol/Electric Hybrid Car
1989 Lohner-Porsche.
Produced in Austria.
Invented by Dr Ferdinand Porsche.

3. Prius Concept Car
Unveiled at the Tokyo motor show 1995

4. 2011 Prius
Now one of the most technologically advanced hybrid vehicles available.

5. Worldwide Sales Over 2 million sold Selling in over 70 countries
Increasing annually

6. Toyota Hybrid Synergy Drive
1.9L internal combustion engine.
Two , three phase AC
Motors.
NiMH battery pack.
At ignition and low speed runs on motors only.

7. At cruising speed propelled by engine.
When required motors and engine work simultaneously to give extra torque, for instance in hard acceleration or uphill driving.

8. On deceleration HSD takes advantage of kinetic energy by allowing the wheels to turn the motors, recovering energy, which is then stored in the battery pack.

9. Thank you for your time