Charging Electric Cars From Solar Energy

Before vehicles were heavily relied on coal, fossil fuels and wind for power. Now, they are rapidly being replaced by electric vehicles and or plug-in hybrid electric cars. But these electric cars are still faced with the problem of energy availability because they rely on energy from biomass, hydro power and wind turbines for power generation. The abundance of solar radiation and its use as solar energy as a power source in driving these rapidly increasing electric cars is not only an important decision but also a necessary condition for eradication of environmental pollution. This study presents a model for charging electric cars from solar energy. Little focus on detailed technologies involved from solar energy capture to battery charging but our main focus is how to provide a modified charging parking lot in Karlskrona city-Sweden. With a surface area of 2850m2, we were able to choose 1STH-350-WH as the right PV modules. Based on the latitude of our design area, a computed 71 degrees angle positioning between solar panel and roof so as to maximise the surface area and optimise the solar irradiance gathering. Based on the power output of approximately116kW these PV modules generated, we further analysed and selected SDP 30KW inverter and Monocrystalline Silicon (1SolTech 1STH-350-WH (350W) solar modules. Also we provide different car charging method by choosing the SAE J1772 standard as one of specifications for dedicated vehicle charging and Clipper Creek HSC-40 as our option of charger. With the data of the generating solar energy every day, charging time, consuming power, we can estimate how many cars the system can handle to charge.

In addition, a newly positioned lambda probe makes a contribution toward impressively fulfilling the ULEV-2 emissions standard in the USA. The Volkswagen Touareg V6 FSI is 228 km/h fast and accelerates to 100 km/h in just 7.8 seconds. Entirely new to the Volkswagen Touareg programme is the V8 TDI with 4,134 cm3 displacement and 250 kW / 340 PS (at 4,000 rpm). The new V8 TDI, like the V6 TDI, has common rail direct injection. In this case, the injection pressure reaches 2,000 bar. At 9.1 l/100 km (equivalent to 239 g/km CO2), its combined fuel consumption is extremely good considering its enormous power and incredible maximum torque of 800 Newton-metres (between 1,750 and 2,750 rpm). By comparison: The retired previous version, a V10 TDI with 230 kW / 313 PS, had a combined fuel consumption of 11.9 litres - 2.8 litres more. In parallel, CO2 emissions are reduced by about 25 percent. This engine also has a specific thermal management system with switched water pump to shorten the warm-up phase.

The VW Touareg V8 TDI reaches a top speed of 242 km/h and accelerates to 100 km/h in only 5.8 seconds - like a sports car. A look at the functionality of the intuitively operated Stop-Start system for the V6 models is interesting: The driver approaches a red light with the Touareg and brakes it to a stop. At this moment the engine is automatically stopped. The text "Stop Start" now appears in the multifunction display. As soon as the light turns green, the driver releases the brake, the engine starts, the "Stop Start" indicator disappears, and the driver resumes driving. Regenerative braking helps to utilise the energy used in driving as ideally as possible. During coasting and braking phases - i.e. whenever the driver simply releases the accelerator pedal or decides to brake - the system elevates the voltage of the alternator (generator), and it is used to intensively charge the vehicle's battery.

Thanks to this alternator control as a function of engine load, and the optimally charged battery that results, the voltage of the alternator can be reduced when this is desirable - e.g. when accelerating or constantly maintaining a desired speed. The alternator may even be shut off entirely. This relieves the engine, which in turn reduces fuel consumption. Regenerative braking requires a special software for energy management and modified engine controller software. In all Volkswagen Touareg versions, a new 8-speed automatic transmission is being used - an advanced development of the previous 6-speed automatic transmission. That makes this Volkswagen the first SUV in the world with this type of transmission. The automatic is designed for engine torques of up to 850 Newton-metres. Due to the two additional gear levels, a 20 percent larger gearing spread can be attained between 1st and 8th gears. This accomplishes two objectives: First, thanks to this larger spread, the engines operate with even greater efficiency over all speed ranges, making them both more fuel efficient and responsive.