Electric bicycle powered by sun tracking solar panel
Preamble
Bi-cycle that fitted with a motor to extend the comfort of rider and enable them to ride longer and faster. It has a solar panel to recharge the battery. It is attached with two hydraulic pistons along longitudinal (along length) and transverse (along width) to optimize the position of solar panel for maximizing the energy output.

Prior art
The implication in normal bi-cycle is simple. There is a crank attached with paddle which drives the chain and a relatively small crank is connected with the rear wheel which is attached to the rear wheel. This is a simple application of amplification of power.
In the case of electric bi-cycle, the ratio of the cranks is revered. Because the torque in that case is more by the motorand it would generate more torque to drive.
In different prior art,”CN201442623U” titled “Electric bicycle by utilizing wind power and solar to generate electricity” described a cycle that stores the energy from wind and solar power and use it when needed.
In “CN201932294U” titled “solar power bicycle” the flexible solar panel in the wheels is being used to recharge the battery and drive the vehicle.
Drawback in prior art
In case of integration those features we need to find a midway, where by the help of motor it can run easily. In case of cycle, paddle crank is larger than the rear wheel crankshaft. In other hand, for motor-cycle rear wheel crank is larger.
In the prior art,”CN201442623U” titled “Electric bicycle by utilizing wind power and solar to generate electricity”, there are two kind of power input is given solar and wind. In the solar panel part, the output could be optimized by the sun tracking system.
In prior art,“CN201932294U” titled “solar power bicycle” the flexible solar panels are attached to the front and rear wheel to generate electricity. But for generate a maximum output from the sun, panels should be aligned so in this case there are more potential for generating electrical energy.

Efforts or solution to drawback
Keeping the both design and integration in mind, the project ants to find out a perfect solution that can improve the usability of the final product. The product which delivers the promise of long run with minimum effort required.
In case of bicycle, we change the gear i.e. gear ratio is increasing from the beginning to the top speed. Once the wheel is on the go then it is easier to paddle. Most energy is needed to ride the bicycle initially i.e. the lower speed of the ride at the very beginning.
With that in mind the gear ratio is higher than the normal. In the beginning the power is exerted by the motor with help of throttle. It helps to move the wheel and get going then it will be easier to pedal.To ride high terrain or going to the uphill the extra power is very helpful. The power is provided by the battery in the bicycle. The battery can be recharged by the solar panel or any other household power outlet. There are two hydraulic pistons along longitudinal (along length) and transverse (along width) to optimize the position of solar panel for maximizing the output.
Summary of the innovation
Charged by the green energy (i.e. solar power) the innovation drives the wheel with lithium-ion battery and motor with the help of throttle. There are two hydraulic pistons with help of solar tracking system turn along longitudinal (along length) and transverse (along width) to optimize the position of solar panel for maximizing the energy output. In a sunny day it will generate enough power to charge the battery and the excess charge can be used otherwise. Where the health of mother nature is at stake, the innovation leads to a path of better and greener environment.

Statement of the invention
Accordingly, the present invention relates to an apparatus for commuting by an electric bicycle, powered by a DC motor and lithium-ion battery, whereby the drive motor is actuated by a motor speed controller and the battery that supplies power to the drive motor, is charged by a solar panel.
The solar tracker tracks the sun. Accordingly, the solar panel is rotated about the longitudinal (along length) and transverse (along width) axes by dual hydraulic motors that are triggered by a sun tracking controller, thereby achieving maximum incident sun light anytime of the day.
Details description of invention
There are FOUR parts of the actual prototype. A. Bi-cycle. B. The motor (for the mid drive or the rear drive). C. The solar panel. D. Solar tracking system. E. Battery.
The project is applied to any bi-cycle. Or any frame. The main part is the motor which stay connected via another chain with rear wheel in case of mid drive. In mid drive the motor is situated at the middle of two wheels.
In some other cases, another process is rear wheel drive. Where the motor is integrated in the rear wheel of the bi-cycle.
There is driven by the help of motor and the motor is controlled by a throttle which is basically an analog power controller which is used as an input.
All of this runs from a power that is provided by the battery. Battery with higher energy density is good for the overall project. Because the more be the energy density the more that can be driven with same amount of weight of the end product.
The battery can be charged with the help of solar panel in sunny days. There is a sun tracking system with help of that two hydraulic pistons along longitudinal (along

length) and transverse (along width) rotate to optimize the position of solar panel for maximizing the output.
But in non-sunny days it can be charged by any household power output.
Details description with reference to drawing
In figure 1, this is the picture of modified cycle.
(1) The accelerator is connected with
(2) The motor that is powered by the
(7) Battery which is an energy storage that can be charged by
(3) Solar cell with (4) sun tracking sensor.
(5) And (6) are Hydraulic adjustments for maximizing the energy output from the panel.
The accelerator (1), or the throttle is controlled by the rider to move forward without paddling.
The motor (2) is fitted at the rear wheel which with the help of accelerator spins and help the wheels move.
Solar cell (3) with sun tracking system (4) which is the power output which helps to charge the battery and track the movement of the sun.
Hydraulic motors (5) and (6) are connected with the solar panel which adjust by the sunlight for maximizing the energy output from the solar panel.

The bicycle consists of (8) frame, (9) front wheel and (10) rear wheel, (11) pedal, (12) front break and (13) rear break.
Claims
We claim:
1. A solar powered bicycle, consisting of
- A frame,
- A front and a rear wheel,
- Instrumentation and control system,
- Braking system,

- Steering and
- Transmission.
2. The aforementioned (claim 1) bicycle is powered either by a DC electric motor with
power transmitted to the rear wheel either by chain drive connected to the hub axle or
by manual pedaling where the motive power is transferred to the rear wheel hub axle
by means of chain drive whereby the DC electric motor is actuated by inputs from a
DC motor speed controller.
3. The aforementioned (claims 1 and 2) bicycle includes a lithium-ion battery that drives the DC motor for motive power.
4. The aforementioned (claims 1,2 and 3) bicycle comprises a controller for switching on and shutting off the motor.
5. The aforementioned (claims 1,2,3 and 4) bicycle includes foldable solar panel for
direct charging of battery wherein the solar panel is maneuvered to track the position
of the sun using dual hydraulic motors for rotation along longitudinal (along length)
and transverse (along width) axis.

6. The aforementioned (claims 1,2,3,4 and 5) bicycle comprises also a dual axis solar tracking controller equipped with sensors where the controller drives the dual hydraulic motors to rotate the solar panel along longitudinal (along length) and transverse (along width) axis.
7. The aforementioned (claims 1,2,3,4,5 and 6) bicycle comprises a differential dual axis battery operated LED sensor that provides input to the tracking controller to position the panel for maximizing incident solar radiation.