Energy Sources

Our solar car consists of different renewable energy sources, with around 70% of solar energy as the main source for propulsion. We employ the combination of monocrystalline and thin film solar panels which enhances the adaptability of the car in variable weather. Installed on car main body, monocrystalline solar panels has the highest efficiency among all types and work best in sunny days; installed on the part extended from the body, thin film solar panels can keep the efficiency in certain level even in cloudy days.

Thin film solar panels

While solar energy is utilized for propulsion, wind energy is utilized for the accessories on the car. Staying outdoor, the wind turbines on the car can convert the mechanical energy of wind into electricity. One of the features of our wind turbines is that they can still function well in low wind speed. Hence, they can always be used throughout their life time. Besides, our wind turbines can be installed or uninstalled easily. Hence, immediate installation or uninstallation can be done according to current weather.

Apart from wind energy, thermoelectricity is also utilized for the accessories on the car. When battery and motor are working, much heat is produced. To avoid wastage of these heat sources, thermoelectric material is attached on the surface of the battery and the motor, so it can convert the heat energy into electricity again.

Energy Storage

The duties of Energy Management Team are choosing the suitable battery for the solar car, designing the electric circuit and conducting Maximum Power Point Tracking (MPPT). In the solar car of Morgen City team, two storage devices are embedded, one is used for driving the motor whereas the other one is used for supplying power to the peripheral accessories. Lithium ion battery has been selected for energy storage due to longer life cycle and good performance in terms of deep of discharge (DOD). Most importantly, lithium ion battery is light and which results in minimizing the weight of the solar car.

Two main circuit paths are existed in the solar electric vehicle. One is to provide power to motor and then wheels while the other one is responsible for providing energy to accessories, for example, hazard lights, horn and etc. As for energy circuit of solar electric vehicle, it has been divided into three parts, consisting of Generation, Storage and Utilizations. Generation refers to the power input from different renewable energy and Storage is generally referring to the battery in the vehicle. To match different power requirements from various appliances in electric vehicles, switches, transformers, fuses, etc. will put into the transmission part. Besides, Utilization is the energy consumption of different electric appliances, for instance, motor, stoplights, hazard lights and etc.

In a bid to maximize overall efficiency of PV modules, maximum power point tracking (MPPT) is applied to our solar car system. Different solar cells have their own specifications and properties, which will be affected by various external factors, such as light intensity and temperature. The concept of achieving the maximum power point is to foce the voltage of PV modules to be that at the maximum power point or regulate the current to the right amount as that of the maximum power point via converters.

Car body and Mechanics

In the decade, it’s not difficult to notice that the solar car technology is evolving. More and more efficient structures and systems were developed and going to be developed. To construct the suitable model for our competition, we will simplify the structure of controversial car system. The systems can be subdivided into four main categories: motor, chassis, steering and brakes.

Motor

The motor needs to be light in weight and have high performance. The chose motor is a product which is a combination of wheel and motor, as a result, the total weight of the solar car will be reduced. Furthermore, the efficiency of the motor is pretty high when compared with the normal motor.

Chassis

The chassis provides fundamental structure and connects the mechanical systems with the body. Also, the goal of the chassis structure is to protect the driver in an accident and to provide a strong and stable platform for other systems. The aluminum and steel spaceframes will be used to make the chassis. We can easily achieve the great protection level and strong structure.

Steering

Steering system allows the driver to change the direction of the solar car. For our three wheel vehicles, the front of two wheels are designed to be the steering parts. Steering wheel connect to two front wheels directly. Rack-and-pinion steering is the most common type of steering on cars. When we turn the steering wheel, the pinion gear is attached to the steering shaft. It converts the rotational motion of the steering wheel into the linear motion needed to turn the wheels and also provides a gear reduction, making it easier to turn the wheels.

Braking System

The braking system needs to be capable of stopping the car in the shortest distance possible. We had chosen a disc brake system for our solar car. The main components of a disc brake are brake pads,caliper and rotor. Each time we stop the car, brakes stop the car by converting the kinetic energy to heat generated by the . So our disc brakes are vented which let the air through to provide cooling.

Morgen City

About Us

Our team name ‘Morgen City’ combines the German word ‘Morgen’, which means ‘Morning’ in English with the word ‘City’.

Contact Us

Welcome to contact us!

Email:morgen.cityu@gmail.com
Facebook: www.facebook.com/morgencity