The characteristics of ground vehicle may be described in terms of
a- Performance (Traction, acceleration, brake, maximum speed)
b- Handling (Steering)
c- Ride (Comfort, suspension, vibration, noise)
Is the ability of the vehicle to accelerate, to develop drawbar pull, to overcome obstacles and to decelerate.
Is the response of the vehicle to driverís commands.
Is the effect of surface irregularities, vibration, and noise on passengers and goods.
+ Fuel consumption, pollution, service, spar parts, Management cost, operation life, safety, price
Theory of ground vehicle
The theory of ground vehicle is concerned with the study of performance, handling and ride, and their relation with the design of ground vehicles under various operation environments.
The behavior of a ground vehicle represents the results of the interaction between the driver, the vehicle and the environment.
Automobile Systems and Components
Fuel system, ignition system, inlet system, exhaust system, cooling system, lubrication system, charging system, starting system, emission control system, engine management system.
Clutch, gearbox (transmission), propeller shaft, deferential, axle, wheels and tires.
Mass, weight distribution, CG, shape, aerodynamics, roll center.
Tire radius, rolling resistance, radial and lateral stiffness.
Brake force distribution, stopping time, skid, slip, radial and lateral stiffness.
Maximum speed, maximum gradient and acceleration, stopping time and distance, Fuel consumption.
Handling and stability:
Steering wheel, steering column, gears, linkages and other components.
Electronic stability control (ESC), Vehicle Stability Assist (VSA).
Springs, shock absorber, anti-roll bar.
Brake pedal, hydraulic system, wheel brake, booster, hand brake, brake valves, ABS.