What are the functions of car stabilizer bars and balance bars? Prevent you from overturning when you make a sharp turn
Release time:
2023-09-26 08:37
The suspension system of a car is divided into independent suspension and non-independent suspension, which have their own advantages and disadvantages. In order to better play the characteristics of the suspension and overcome the shortcomings, people have added some connecting rods that play a special role in the suspension, such as stabilizer bars, Watt connecting rods, and Panhard connecting rods. Today we will talk about the structure and function of these connecting rods.
Stabilizer bar
The stabilizer bar, also known as the anti-roll bar, is an auxiliary elastic element in the automobile suspension. The stabilizer bar is a torsion bar spring made of spring steel with a "U" shape and is placed horizontally at the front and rear ends of the car. The middle of the shaft is hinged with the frame with a sleeve, and the two ends of the rod are respectively fixed on the lower arms of the left and right suspensions.
When the car is cornering, the centrifugal force will cause the body to roll, causing the inner wheel suspension to stretch and the outer wheel suspension to compress, causing the shaft of the anti-roll bar to twist, generating a large torque, which acts in the opposite direction. Suspension to prevent excessive lateral roll when turning and improve driving comfort.
The anti-roll bar will harden the suspension only when it acts, unlike a hard spring that will harden the suspension. If you want to completely rely on springs to reduce the body's roll, you may need very hard springs, and even use shock absorbers with high damping coefficients to resist the spring bounce. In this way, we have to withstand hard springs and shock absorbers. The sequelae of poor comfort caused by the device. However, if the anti-roll bar is properly matched, it can not only reduce the roll, but also do not have to sacrifice the comfort and tracking. Therefore, the combination of anti-roll bars and springs is the most feasible way to achieve a compromise in comfort and handling.
Generally, independent suspension systems are equipped with stabilizer bars, and a small number of torsion beam suspensions are also equipped with stabilizer bars. For example, most of the rear wheel torsion beam suspensions of French cars are equipped with stabilizer bars. It is said that the chassis of the car is well tuned, which has a lot to do with this.
Watt connecting rod
The "Watt link" was originally invented by the legendary British inventor and engineer James Watt. This structure is used on the torsion beam suspension to reduce the influence of the lateral force of the rear wheels on the toe of the wheels. It also reduces the centrifugal force generated by the lateral force when turning, so that the force on both sides of the wheel always maintains proper contact with the road surface to achieve better adhesion. On the one hand, it improves the driving comfort of the vehicle, and also strengthens the tracking of the vehicle.
"The Watt connecting rod is a push rod added on the left and right of the rear suspension. The two push rods are connected by a lever mechanism and interact with each other to limit the range of motion, so the compression and extension of the suspension on both sides can be reduced. Amplitude to ensure the vertical movement relationship between the body and the axle. The force on both sides of the suspension is more uniform, and the vehicle roll will be significantly reduced. In particular, the stability of the vehicle body can be improved in the case of cornering or the like.