What is wheel grip and adhesion?
The grip is the maximum driving force for the road surface. Wheel grip is actually refers to the road and the ground between the direction of the friction. The car is to rely on the friction between the wheel and the ground, in the force and reaction force under the principle of the car forward or backward. When the wheel slips, it indicates that the grip of the wheel and the ground is zero. Adhesion includes the direction of travel and lateral friction in both directions. The greater the adhesion of the wheel, the greater the drive torque that can be provided, and the greater the ability to prevent skidding (such as lateral winds). The friction between the wheel and the ground includes rolling friction and sliding friction. Wheel rotation needs to overcome the rolling friction of the ground, rolling friction is equal to the wheel carrying weight and rolling friction coefficient of the product, while the rolling friction coefficient is related to the contact area. The wider tires have a large contact area with the ground, and their rolling friction is also large, so it also provides greater grip and adhesion, but at the same time increases the fuel consumption of the car.
