THE LIGHT MODULAR ELECTRIC VEHICLE Or ULEV (Utility Light Electric Vehicle)
Analyzing a range of „light electrical transport vehicles” already available on the market as well as ongoing developments we see an existing niche for specific vehicles. This niche is dynamically expanding with plenty of available solutions that vary in range, payload, mass, dimensions as well as potential use applications. Pizza, cargo, grocery, isothermal food delivery, maintenance, cleaning, rubbish collection and many other utility activities offer a wide range of possible project developments and design of interchangeable modules using common chassis and electrical subsystem customizations. Electric utility vehicles (EUV) are commonly used since a long time ago. Beginning 1980’ this type of vehicles is mostly used for passenger transportation for short distances (golf cars). Later in 2000’ with introduction of Li-ion batteries, the use EUVs spread to light compact vehicles for transport. Our ultra light electric vehicle (ULEV) will compete for the market attention by the following parameters: - Optimal weight (as light as possible, yet with highest possible payload and range capabilities) - Payload ( be able to transport between 200-340 kg of payload) - Range (depending on the type of batteries used the range varies between 50-100km on one full battery charge) - Price (competitive, by way of manufacturing technology and materials use optimization). The concept structure provides space for 2 to 8 battery packs of different Ah capacities (2.5 ... 10 kWh). placed in the vehicle beneath the cab floor (in the chassis). Depending on the build option the user will be able to add or remove battery packs to have more range (autonomy). It will be possible to charge battery packs while mounted in the vehicle or stand-alone. The operator will be able to quickly switch between empty and fully charged battery packs in his business depot. Battery packs are located in the vehicle’s frame to keep the center of gravity low as well as near the center between front and rear axle. The engine is attached to the rear axle with differential and reducing gear. It has integrated breaks. Rear cargo module has quick-fix system to enable easy module change for different utility. It can be done manually by two people. Special modules can be designed and installed, so the vehicle could fulfill any customer need. More advanced option of this module can have built in cooling/heating system to keep contents cool or warm. This doesn’t have to use the battery power but auxiliary power source during cargo loading operation. With enough insulation the heating/cooling system could be switched off during delivery ride. Extra storage space is available on both sides of the vehicle. Frame is designed of simple square or round aluminum profiles covered with composite panels that create the external styling of the vehicle. This will save weight and reduce the cost of the product.