What is Vehicle: Definition and 407 Discussions

A vehicle (from Latin: vehiculum) is a machine that transports people or cargo. Vehicles include wagons, bicycles, motor vehicles (motorcycles, cars, trucks, buses), railed vehicles (trains, trams), watercraft (ships, boats), amphibious vehicles (screw-propelled vehicle, hovercraft), aircraft (airplanes, helicopters) and spacecraft.Land vehicles are classified broadly by what is used to apply steering and drive forces against the ground: wheeled, tracked, railed or skied. ISO 3833-1977 is the standard, also internationally used in legislation, for road vehicles types, terms and definitions.

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  1. E

    Force on wheels in an accelerating vehicle

    Assume that a motorcycle of mass m has two wheels that are equidistant from its centre i.e the force on each wheel is m*g/2. If the motorcycle accelerates forward, will the two forces on each wheel (measured instantaneously) remain the same? If not, how can one mathematically describe the...
  2. T

    What is the Acceleration of a Vehicle at Different RPMs?

    Homework Statement Find the Acceleration of a vehicle at 3k rpm and 5k rpm. At 3k the engine produces 65hp. At 5k it produces 155hp. Car weight is 1000kg. The wheels are 50cm in diameter. The engine is connected to the wheel via 2:1 ratio transmission. Neglect any losses. Homework...
  3. kadi

    Calculate Vehicle Impact Speed with These Specifics - Expert Tips

    can someone help me determine the impact speed of a vehicle if i provide specifics? i keep coming up with different answers!
  4. H

    Modeling vehicle lift in uphill front end collision

    Homework Statement This is a video of the phenomenon. Start at 5:08 in this video and watch the next two crashes. That first one, where the car hits a wall, straight on, is the most helpful. The phenomenon is that when a car going uphill crashes, it has an upward speed/momentum vector...
  5. S

    Vehicle turning radius and path projection

    Hi everyone, i hope this is the right place to post this. Anyway, I'm creating a game, and I'm trying to calculate and project future car movement path based on steering angle of the wheels. By using equation: r = wheelbase / sin(steeringAngle) I'm able to calculate turning radius. But the...
  6. M

    Speed of each vehicle after the collision?

    Homework Statement "Before the collision, vehicle #1 was traveling east and vehicle #2 was traveling north. The driver of vehicle #1 states he was traveling 35 mph as he approached the intersection. He continues to state that vehicle #2 ran the stop sign, pulling out in front of him and...
  7. W

    Making a vehicle with regenerative breaking

    Background: So I'm a mechanical engineering student, we are asked to make an autonomous vehicle with regenerative breaking. Info. about the project: dimensions of vehicle to be about 25 cm long, 16 cm wide and 8 cm high should be low weight should be low cost should be fast should carry weight...
  8. P

    Velocity of a vehicle through a skid

    I feel a bit silly for asking for advice with this solution since it is so basic however for the life of me I can't seem to get the answer. 1. Homework Statement A car skids to a stop. The acceleration of a car is reported in discrete times shown below: (hint, use trapezoid areas) t (s)...
  9. N

    Torque value needed to move a particular vehicle

    can i know how much torque is required to move a 200kg weighed vehicle to 30kmph by using 24v, 250w dcmotor
  10. A

    Effect of GCW on vehicle speed

    Hi all. I am currently working on calculating vehicle performance. I have found a formula to calculate max theoratical velocity that is: V= engine RPM x Wheel circumference / transmission Ratio x Rear Axle Gear Ratio but I could not be able to calculate my actual speed and its effect on...
  11. Electro Dave

    Power needed to move a vehicle against inertia

    Hi, I'm trying to figure out the minimum power in watts or HP to move a front wheel drive vehicle that is man-powered with pedals, of a given base weight and then to know how much people would be needed to pedal in order to break inertia and a constant of how much more power is needed for each...
  12. T

    Length of ramp to stop vehicle

    A Ford Ranger with a mass of 2430 kg is traveling at a velocity of 85 mph down a mountain road. The brakes fail and the driver elects to use a "run away" truck ramp to stop the vehicle. The ramp has an incline of 15.0 degrees. What is the minimum length the ramp must be in order for this...
  13. R

    How do I calculate the horsepower required to start a vehicle uphill at work?

    At work, I am trying to calculate the horsepower required to start a vehicle uphill. We have a hill with a steep grade (14.42%). We are trying to prove/disprove that a delivery truck can stop facing downhill and back into a loading dock. I've seen several calculations of the running speed...
  14. J

    Torque Required To Move a Vehicle

    Hello, I apologize if this is in the wrong sub-forum, as I am new to this site. Anyways, I am trying to figure out how much torque is needed to move a vehicle that is about 500 pounds in weight. That is including the driver of the vehicle. For a little more information, the vehicle would have...
  15. L

    Can anyone estimate the speed of a vehicle in a car accident without skid marks?

    So I know that a few of these questions have been posted previously but I also understand that each circumstance is different in regards to each aspect so I figured I would post the question and see if anyone can assist me at all. Whether it be out of the goodness of your heart or in exchange...
  16. lonely_nucleus

    Circuit that controls time and distance for a 7.6v vehicle?

    I have to design a circuit that can control how long it takes for it to travel a given distance. I do not have much progress. I am wondering what type of circuit this is?
  17. G

    Experimental data modelling off-road vehicle travel

    Hi everyone, I am looking for any available experimental data which models off-road vehicle travel in clay and measures tyre and soil parameters. Parameters I am looking for include pull, torque, shear strength of the soil, sinkage, slip and deflection. If anyone knows of any available raw data...
  18. G

    Energy of a vehicle in a crash

    Hello all, I am in need of some help. I work for a fire department who had a significant fire truck crash last summer. Because of this, my department has set about making a training program for our drivers. Lucky me, I am in charge of said program. So I need some help. Here is the story. Last...
  19. A

    Force needed to support Suspension of a Vehicle

    Homework Statement A model for the suspension of a vehicle is shown where the spring has stiffness k = 178 N/mm and an unstreched length of 347 mm. http://imgur.com/1dTVs12 Determine the value P and the force supported by member AB so that the suspension has the equilibrium position shown...
  20. U

    Slipping 4WD Mobile Vehicle Wheels Without Oil or Water

    Hello Everyone, I have a 4WD mobile vehicle, I am trying to get the wheel to slip in the floor. I don't want to use oil or any water product (for my electronic safety and to keep the floor less messy) Any idea how to make the wheel slip on the floor? I was thinking about using snowboard...
  21. E

    Automotive How does the throttle affect the RPM of an engine?

    Hello, I'm working on a car simulation and I'm attempting to implement a manual transmission simulation into the game. My question is, how do you find the rate of change of the engine's RPM when the gas pedal is pressed in the car?
  22. G

    Forces induced by a vehicle wheel on the ground

    Hi, I was wondering whether anyone can help with a question I have about the forces acting on a car wheel and the forces the wheel induces on the ground surface. The way I understand it, a car wheel traveling on a flat surface has the following forces acting on it: -vertical force due to the...
  23. P

    Calculating Vehicle Speed and Acceleration Curve: A Guide for Game Programmers

    I am programming a game in which there are no outside forces acting on the car aside from the engine. I will not be having gears, so that is not a factor. I just want to know if there is an equation I can use to calculate the car's speed at any given time. The car will start off accelerating...
  24. Monsterboy

    A single stage vehicle all the way to orbit

    http://m.space.com/19872-skylon-space-plane-human-spaceflight.html I don't have a background in aerospace engineering but I am interested to know the main reasons as to why it is so difficult for single stage vehicle to go all the way to orbit. Is it about the fuel constraints and the weight...
  25. D

    Modeling a (very simple) vehicle suspension

    Hi, I am generating synthetic images from the perspective of a moving vehicle, i.e. a camera mounted on a vehicle driving through a computer generated scene. Now i want to simulate the motions of the vehicle body that result from road roughness (bumps, patches). I modeled my road roughness...
  26. M

    How much damage can a shopping cart do to a vehicle?

    I was recently hit in a parking lot after parking next to the cart return. I was parked far enough away that the cart boy had plenty of room to take a row of carts through but there was no way a vehicle could get through. When I came out there was considerable damage to the back side panel of...
  27. A

    Torque calculation of an vehicle

    hi, i have 8000 lb machine it has 4 wheels (just like car), i want it to move on 2 ft/sec speed on cast iron wheels with steel track at flat surface. radius of every wheel in 5 inch. what will be the torque required to move this machine?? and what will be the torque on each wheel?? i want to...
  28. R

    What was the estimated speed of a vehicle that struck me?

    I was recently involved in an automobile accident and was charged for not Yielding. I was driving a 2000 Lexus RX300 and was struck by a 1995 Chevrolet Geo Prizm. I was leaving a parking lot onto a 4 lane road divided by a median. As I was approaching the median to head eastbound and was at...
  29. O

    Acceleration required to cause vehicle skid?

    Homework Statement Hello, I know how to solve this problem, I just don't understand an aspect of the conclusion. A car is traveling at some constant velocity forward in a horizontal direction. The ground has a coefficient of static friction of .6. What acceleration in the forward direction...
  30. J

    Calculating Brake Drum Size and Hydraulic Pressure for Vehicle Braking System

    Hi, I am looking for some help with a project I am doing where I am designing a braking system for a machine. The machine can travel up to a maximum speed of 12khm and weighs 5000kg. I need to stop the vehicle in approx. 6 meters/1.2m/s deceleration, using two drum brakes which are operated...
  31. M

    Need help - Force required for accelerating vehicle

    Hello, I would need some guidance to calculate the force required to accelerate a vehicle up to a certain speed over given amount of time. This might seem simple but I am not sure if I am on the right track anymore. I did some online searching and I couldn't really understand it. 1. Homework...
  32. R

    MATLAB Single vehicle tracking using Fourier transform-MATLAB

    I am working on a project which is based on importance of phase only reconstruction of a signal obtained from fft. Now ,I have detected vehicles from the Video of Traffic on road taken using stationary camera ( Please download the 1.47 MB video for testing MATLAB Code by ( step1) click on the...
  33. Hunter Bliss

    Calculus of Variations: Minimizing Fuel Consumption w/ v(t)

    Homework Statement (I'm learning all of this in German, so I apologize if something is translated incorrectly.) So last week we started calculus of variations, and I'm rather confused about how to approach the following problem: The fuel consumption of a vehicle per unit of time is expressed...
  34. Vlad137

    Physics behind turbochargers and compressors

    Hi everyone, I need to do a presentation to a high school class about the physics behind a turbocharger and was looking for some help getting which principals/laws explain what happens when a turbocharger is used within a car i.e.; Thermodynamics, gas laws. I just need a direction in which...
  35. A

    Is My Vehicle in Danger of Sinking if Water Enters?

    I need to know approximately what percentage of a vehicle with an airtight passenger compartment must be filled with water before it sinks to the bottom. The fact that it is airtight may normally prevent it from sinking, but if a window was cracked from impact, and water slowly trickled in...
  36. M

    How to calc force required to steer an articulated vehicle?

    Ok so for a project of mine I need to calc. the force required to steer an articulated heavy on road vehicle and to overcome friction (so I need to calc frictional forces too). I understand I need to draw FBDs but it has been a while since i have done that and I have never worked with an...
  37. R

    Vehicle COG comparison for longitudinal rollover

    Hi I am trying to compare which of the (2) models has the greatest stability longitudinaly. I have the COG height and longitudinal (axle split) Model A has it COG closer to the centre of the axles (longitudinal - further from rear axle 1,487l) but sits much higher (2,537 above axle centre) Model...
  38. D

    Calculate required torque for differential drive robot

    Hello everyone, So I am working on a differential drive vehicle... max weight 6kg and using two stepper motors centred on a circular shaped flat body. I want to try and work out if these stepper motors have enough torque to drive the thing. I am a second year engineering student, but I haven't...
  39. W

    Physics of decceleration of rolling vehicle

    I've been arguing with my physics teacher about why the deacceleration of a person on a skateboard or bicycle that is gliding along the ground (without pedaling or pushing) is dependent on the mass of the person riding it (The higher mass person goes further). I say that it is solely due to...
  40. C

    Calculate pressure from vehicle moving through air

    Alright, I've been looking everywhere, and tried to use a few formulas but they don't answer what I'm trying to find. Let's say I have a car that weighs 1815kg )4000 pounds) and its traveling at 90kph (roughly 56 mph) with a flat one square meter (10.76 sq ft.) grill facing the wind as it...
  41. A

    Designing a compressed air vehicle

    I am doing a school project, building a compressed air powered vehicle to reach desired destination. What I am thinking is: I will use a paintball compressed air tank. Four nozzles. And an controller board to control valve opening. Valve will only open for certain time like (50ms). After each...
  42. T

    Determine speed needed to cause rollover of car hitting ramp

    Hello, So my issue is as follows: You have a car going at a constant speed and the right side of the car hits a ramp which causes that side to elevate and cause the car to rotate about its x axis. What I need to figure out is how fast does the car need to hit the ramp to cause a rollover...
  43. NeedHelpBro

    Calculat the negative acceleration on a vehicle during skid.

    Homework Statement Total Stopping distance = 50 meters Driver Reaction Time = 1 Seconds Coefficient of sliding friction = 0.58 Homework Equations D=(Total Distance)=V^2/2μg The Attempt at a Solution v≈36.66 (Initial Velocity) but I am sure what do after this step to find the negative...
  44. J

    Calculate the load on an vehicle Engine

    Dear Friends, Hi Everyone. I am Planning to Design a Special Engine. I got with an Idea but got Struck on Starting the Design. I do think many has the Same Problem "Starting Trouble". Could someone tell me where to Start the Engine Design? Please...
  45. I

    What speed can a hypothetical flying vehicle reach with given specifications?

    I have a problem that is completely hypothetical and revolves around the speed of a non-existent aerial vehicle. Using the following specifications, what speed can this hypothetical flying vehicle move? Standard weight: 43.4 metric tons Max Acceleration: 0.93 G Rocket Thrusters: 2 x 24000 kg...
  46. U

    A mechanical toy vehicle (w/o electronic)

    Using some kind of launching/propelling system to launch a vehicle (toy size)... The problem is getting the vehicle to turn at a certain point to avoid the obstruction w/o using any type of motor. I've tried to look into zigzag patterns, but they all require electronic motors w/ gear shafts...
  47. voltech444

    ORC Heat Recovery Hybrid Electric Vehicle

    I have been thinking of a concept for a class 7-8 semi-tractor trailer that is hybrid electric. The basic idea is a fully electric drive system that propels the truck with electric motors only. A lithium-ion battery pack stores energy for the drive system. A diesel generator provides electricity...
  48. BeautifulLight

    Need help diagnosing headlight issue on my vehicle.

    Driver-side low beam was out so I went to the auto parts store to pick up a new one. Well it still won't light up:( Using the ohm setting on a multimeter, you can check standard household light bulbs to see whether or not they are defective. Good light bulb = high resistance, since the filament...
  49. B

    Calculating Efficiency of Electric Vehicle

    Homework Statement For the following calculations, assume a typical electric car will need to apply a constant forc of 165 N to maintain a typical highway speed of 100 km/hr (27.7778 m/s). A: What power (watts) is needed to maintain this speed? B: What energy (Joules) is needed to travel 100...
  50. M

    A space vehicle splitting into two parts (velocity question)

    Hi, so i have finished this question but I am not sure if I did it right. Could you guys check it and tell me if its right or show me where i went wrong. This is the question: A space vehicle traveling At a velocity of 1400m/s separates by a controlled explosion into two sections of mass 859kg...
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