How to drive a car depending on his drive

How to drive a car depending on his drive
The driving technique front-wheel and rear-wheel drive cars just the same as long as long as the car is moving on a straight, dry stretch of road.

2015-11-14 04:11:30 25

cardrive carscentrifugal forcefront wheelfront wheel drivehigh speed

The technique of driving front-wheel and rear-wheel drive cars are the same just as long as long as the car is moving on a straight, dry stretch of road. A correct and reliable vehicle operation is impossible without understanding the physical nature of his movement. The vehicle itself is quite a hard physical object that when you change the direction and speed of movement, while there are several physical forces: thrust, inertial forces, random lateral forces, reaction forces, centrifugal forces, and others. On the behavior of the machine is affected by the value of the vertical loads on the wheels, the coefficient of grip and the wheel which is transmitted torque from the engine. Consider the features of cars with different types of actuators in specific driving situations.

linear motion

As already mentioned, during straight motion on a dry road surface, the behavior of the machine with front-wheel drive is no different from the behavior of the car with a classical layout. The situation changes radically in the case of acceleration or movement at high speed along the slippery stretch of road. Due to careless handling of the steering wheel, alternating sections of different road surface or due to road irregularities on a rear-drive car are random lateral forces tending to displace the rear wheel in the direction of the direction of motion. For the alignment of the machine and return it stability it is necessary to reduce speed by releasing the gas pedal, and turn the steering wheel in the direction of the occurring drift. A car with front wheel drive in the same conditions behaves quite differently. The presence of traction on the front, prigruzhennye engine, axis provides a stable position of the front of the machine even at very high speed without requiring the driver to take any action to ensure the stability of the car. If a car with front wheel drive starts to "storm", this is the signal that the limit speed is exceeded and you need to gradually releasing the pressure on the accelerator pedal.

cornering

Approaching the turn, regardless of the type of drive a car, you need to slow down. It is better to go the beginning of the turn and, in fact, the turn at reduced speed, so that in its final stage to accelerate and to continue the movement with high speed than to fly into a turn at high speed, then all of his bending to fight the loss of control and exit from the turn to the straight stretch of road with a minimum speed and voltage he's sweaty back. In a simplified form during turn on the car there are two forces – the strength of lateral coupling of wheels with the road surface and the centrifugal force. The latter depends on the speed and turning radius. The more speed and less turning radius, the stronger the centrifugal force will try to shift the car to the outside of the turn. As soon as it will exceed the strength of lateral coupling of wheels will start skidding machine. In such cases, to take, to return to the car handling? The driver of the vehicle with rear drive, you need to release the gas pedal and turn the steering wheel into the skid to avoid tipping. As a result, the wheel speed is reduced, to restore the tire grip. The owners of front wheel drive cars are the order of the actions is entirely different: turning the steering wheel started skidding, it is necessary to increase gently press on the accelerator pedal. As a result the rear wheels lost traction "getting loaded" and strongly pressed against the road surface and front wheel drive will bring the car from skidding. Regardless of the type of drive of the machine it is strictly forbidden to turn off the transmission and use the brake pedal during cornering! Safe driving and good luck to you on the road!


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