Automobile engineering related attributes explained with the help of animations
Today, automotive engineering is one of the most technologically interesting and compelling specialties available. Experts in automotive engineering are poised to develop innovations that will change society and address global problems. Automobile engineering has various other fields incorporated in as well which include mechanical, electrical, electronic, software and safety engineering as applied to the design, manufacture and operation of motorcycles, automobiles, buses and trucks and their respective engineering subsystems.
1) Safety EngineeringImage Courtesy: icme.hpc.msstate.edu
Safety engineering is the assessment of various crash scenarios and their impact on the vehicle occupants. Some of these requirements include: seat belt and air bag functionality testing, front and side impact testing, and tests of rollover resistance. Assessments are done with various methods and tools, including Computer crash simulation (typically finite element analysis), crash test dummies, and partial system sled and full vehicle crashes. The animations are based on the finite element analysis.
2) Fuel EconomyImage Courtesy: tesla3.com
Fuel economy is the measured fuel efficiency of the vehicle in miles per gallon or kilometers per litre. The animation is that of sonic spark plugs which look like normal spark plugs, but they have a powerful ultrasound generator in the tip. The ultrasound generator shatters gasoline mist microseconds before it burns, energizing the fuel droplets before combustion. Your car, truck or motorcycle will have more power and get better mileage because combustion is dramatically improved.
3) EnginesImage Courtesy: formula1-dictionary.net
The main objective of an engine is to harness the latent energy from the fuel and convert it into kinetic energy which can turn the wheels and move the car. The first animation is that of an internal combustion engine which turns chemical energy into mechanical energy. A petrol four-stroke engine is an internal combustion engine in which the piston completes four separate strokes which comprise a single thermodynamic cycle. A stroke refers to the full travel of the piston along the cylinder, in either direction. The four separate strokes are termed intake, compression, power and exhaust.Image Courtesy: takemebeyondthehorizon.wordpress.com
On the other hand, a diesel engine instead of using a spark plug to ignite the air/fuel mixture, it uses pure compression from the compression stroke to heat the air, and then inject the fuel. The injection of fuel into highly compressed air leads to self-combustion which results in the release of the energy.
4) Vehicle DynamicsImage Courtesy: claytex.com Image Courtesy: yantrix.wordpress.com
Vehicle dynamics is the vehicle's response of the following attributes: ride, handling, steering, braking, comfort and traction. Design of steering, braking, frame, wheels and tires, and traction control are highly leveraged by the vehicle dynamics engineer to deliver the vehicle dynamics qualities desired. The first animation shows a model testing the suspensions whereas the second animation is that of a steering mechanism.
5) Vehicle ElectronicsImage Courtesy: circuitstoday.com
Modern vehicles employ dozens of electronic systems. These systems are responsible for operational controls such as the throttle, brake and steering controls; as well as many comfort and convenience systems such as the HVAC, infotainment, and lighting systems. It would not be possible for automobiles to meet modern safety and fuel economy requirements without electronic controls. The animation shows an electronic vehicle immobilizer and its major application is that it prevents the engine from turning over until the vehicles ‘G-Spot‘ is touched at the same time the key is turned to the ‘Start’ position, and the operator is earthed.
6) Climate ControlImage Courtesy: skyjuiceiswater.blogspot.com
Climate control is the customer’s impression of the cabin environment and level of comfort related to the temperature and humidity. From the windshield defrosting, to the heating and cooling capacity, all vehicle seating positions are evaluated to a certain level of comfort. The animation shows the components of a car air conditioner and its working.