Differential Structure

Ordinary differential is composed of planetary gear, planetary carrier (differential case), side gear and other parts. The power of the engine enters the differential through the transmission shaft, directly drives the planetary wheel carrier, and then the planetary wheel drives the left and right half shafts to drive the left and right wheels respectively. The design requirements of the differential meet: (speed of left axle shaft) + (speed of right axle shaft) = 2 (speed of planetary wheel carrier). When the car goes straight, the rotational speed of the left and right wheels and the planetary wheel carrier are equal and in a balanced state, but when the car turns, the balanced state of the three is destroyed, resulting in a decrease in the rotational speed of the inner wheel and an increase in the rotational speed of the outer wheel.