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Authors: Pia Žnidaršič, Tina Rejc, Mitja Železnik Mentor: Tomaž Kušar.

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Presentation on theme: "Authors: Pia Žnidaršič, Tina Rejc, Mitja Železnik Mentor: Tomaž Kušar."— Presentation transcript:

1 Authors: Pia Žnidaršič, Tina Rejc, Mitja Železnik Mentor: Tomaž Kušar

2

3 Charging wireless charging solar panels regenerative braking

4 Hypothesis A good part of the car’s kinetic energy can be converted into electricity with the use of regenerative braking system. In such a way, we can improve the car’s efficiency. The electric car still needs ordinary brakes alongside the regenerative braking system due to its slow braking ability.

5 The construction of the electric car

6 video clip: our experimentour experimentResearch We tried to find out an answer to the question: how to improve the electric car‘s efficiency? 1. We compared a basic diode and light emitting diode. 2. We also used different capacities of a capacitor.

7 At first we measured the braking distance while the DC motors weren‘t connected to an electric circuit. Total potential energy is converted to the force of friction (braking force). Measurements Then we measured the amount of electricity converted from kinetic energy by the DC motors (generators). braking distance

8 Results These results were obtained on the basis of length measurement and calculated potential energy. Then we measured the amount of electricity we actually got in each case.

9 Results

10 Results

11 Results

12 Results

13 The results of the circuit by a simple diode are better, because the basic diode consumes less power. By increasing the capacitor‘s capacity we can store more electricity. The amount of stored electricity also depends on the braking distance. Results

14 Literature [1] Tesla motors, available at http://www.teslamotors.com/http://www.teslamotors.com/ [2] List of electric cars currently available, available at http://en.wikipedia.org/wiki/List_of_electric_cars_currently_available [3] How Does Regenerative Braking Work? Available at http://www.carsdirect.com/green-cars/how-does-regenerative-braking-work http://www.carsdirect.com/green-cars/how-does-regenerative-braking-work [4] Regenerative brakes, available at http://en.wikipedia.org/wiki/List_of_electric_cars_currently_available http://en.wikipedia.org/wiki/List_of_electric_cars_currently_available [5] The Kinetic Energy Storage, available at http://www.youtube.com/watch?v=ZHgN1- Qv9LUhttp://www.youtube.com/watch?v=ZHgN1- Qv9LU [6] Regenerative braking, available at http://www.cyberphysics.co.uk/topics/energy/regenerative_braking.htm http://www.cyberphysics.co.uk/topics/energy/regenerative_braking.htm [7] What is the regenerative braking system?, available at http://www.alke.com/brake- energy-recovery.htmlhttp://www.alke.com/brake- energy-recovery.html

15 Thank you for your attention.


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