Hybrid Electric Vehicles (HEV) (Clean & Fuel Saving Technology)

Today automobiles are identified as one of the major causes of air pollution and energy depletion. Vehicles are also identified for their low efficiency in other words high-energy loss. Hybrid Electric Vehicles have the capacity to overcome these situations and bring a new revolution.
Any vehicle that combines two or more sources of power that can directly or indirectly provides propulsion power is a hybrid. The gasoline electric hybrid vehicle is just the required type of crossbreed between a gasoline powered vehicle and electric vehicle. Hybrid vehicles run both with a rechargeable battery as well as gasoline. In a hybrid engine, power from gasoline and power from a set of batteries transmits power to an electric motor. There are less adverse effects due to the Hybrid electric vehicles. Also the batteries used in hybrid vehicles (rechargeable Nickel metal hydride, Lead acid batteries, Lithium Polymer batteries) are disposable which will not pose any toxic hazards to the environment. The notable fact in hybrid vehicles is that the DC machine is that it can run both as a Motor as well as a generator.
In addition, hybrid vehicles make use of a system that recovers power from the momentum of the vehicle when braking. The Hybrid vehicles are complicated machines when compared to their counterparts of the gasoline-powered vehicles. But higher efficiencies, lower emissions of hybrid vehicles grabs the attention of the new ERA. The other facilities of these hybrid vehicles i.e. performance, manufacturing cost and environmental impacts are discussed in this paper.

Source:
Projects-forum.com

Design and Fabrication of Electric Bike

Electricity has always been an integral part of our life. It has been used in public transport vehicles like local trains. With the shortage of fossil fuels, increasing fuel costs, rising levels of pollution, electricity fuelled vehicles are the future of personal transportation. The present project dealt with design and fabrication of electric bike (cycle). Modeling, Design and Analysis of the frame was performed in Unigraphics. This was successful for a test run for 45 minutes with no decrease in voltage rating in the battery. The designed cycle is capable of taking 85 kg as Pay-load capacity.
Source:
Projects-forum.com

Vehicle Skid Control

Vehicle skid can be defined as the loss of traction between a vehicle’s tyres and the road surface due to the forces acting on the vehicle. Most skids are caused by driver error, although only about 15% of accidents are the direct result of a vehicle skidding. Skids occurring in other accidents are usually the result of last minute action, by the driver, when faced with a crisis ahead rather than actually causing an accident. Skids can occur both in the dry and wet as well as icy conditions, however, the chances of losing control and having an accident increases by 50% in the wet. The most common type of skid we will be confronted with is when the rear end of the car slides out, causing an oversteer or when the front of the car plows toward the outside of a turn without following the curve of the turn causing an understeer. Usually, oversteer occurs as a result of going into a corner too fast or incorrectly hitting a slick area, causing the rear wheels to oversteer. A third skid called the four wheel skid can also occur, where all the four wheels lock up and the vehicle slides in the direction where the forward momentum is carrying it, with no directional control.
Source:
Projects-forum.com

Vehicle skid can be defined as the loss of traction between a vehicle’s tyres and the road surface due to the forces acting on the vehicle. Most skids are caused by driver error, although only about 15% of accidents are the direct result of a vehicle skidding. Skids occurring in other accidents are usually the result of last minute action, by the driver, when faced with a crisis ahead rather than actually causing an accident. Skids can occur both in the dry and wet as well as icy conditions, however, the chances of losing control and having an accident increases by 50% in the wet. The most common type of skid we will be confronted with is when the rear end of the car slides out, causing an oversteer or when the front of the car plows toward the outside of a turn without following the curve of the turn causing an understeer. Usually, oversteer occurs as a result of going into a corner too fast or incorrectly hitting a slick area, causing the rear wheels to oversteer. A third skid called the four wheel skid can also occur, where all the four wheels lock up and the vehicle slides in the direction where the forward momentum is carrying it, with no directional control.

Source:
Projects-forum.com