2. IDEA DEVELOPMENT
Energy losses
Evolved from regenerative braking system
Conserve energy
Increase overall efficiency
3. PROJECT OBJECTIVES
Analyse the maximum voltage recovered due to:
Road irregularities
Braking
Vehicle hits a large bump
Determine the best conditions for energy recovery
4. SYSTEM CONCEPT
Recover energy from vibrations due to road bumps
and irregularities
Energy Recovery is achieved by the principle of
Electromagnetic Induction.
Wasted energy is recovered, utilized in a productive
way.
5. WORKING PRINCIPLE
ELECTROMAGNETIC INDUCTION
The production of electric current across a
conductor moving through a magnetic field
IN A CLOSED CIRCUIT
Change in
Magnetic Flux
Induction of
Electric Current
9. ROAD SURFACE ANALYSIS
Road surface is assumed of c-level grade
Mean roughness value: 1-15 cm
Wavelength of the road waveform: 1-5 m
Used to determine velocity of vertical movement of
the tyre
10. REGENERATED POWER
Voltage generated, V
V = Br vmax L
Maximum Current, I
I = V/R = σ Br vmax A
Power regenerated by the system, P
P = VI = σ Br
2vmax
2 A L
11. PARAMETERS INVOLVED
Considering the motion to be harmonic vibration,
z(t) = z0 – (vmax/ω) cos ωt
Magnetic field intensity is found by a cosine
function,
B = B0 cos(πz/H)
12. VELOCITY OF TYRE MOVEMENT
Vertical Mean Velocity of the Tyre (vmax),
s = dZ/dX
The waveform taken for half period is,
Z = sX
The vertical mean velocity of the tyre is,
vmax = svv
13. INSTANTANEOUS VOLTAGE (V)
instantaneous voltage of one coil centred at z0 is
V = B0 L cos { π [z0 – (vmax/ω) cos ωt]/H} vmax sinωt
15. INSTANTANEOUS VOLTAGE
In order to account for practicality, we consider,
0° phase of the coil,
V = B0 L cos {π [(vmax/ω) cosωt]/b} vmax sinωt
90° phase
V = B0 L sin {π [(vmax/ω) cosωt]/b} vmax sinωt