Variable-stiffness semi-active horizontal stabilizer bar of passenger car

Abstract

The invention discloses a variable-stiffness semi-active horizontal stabilizer bar of a passenger car. The horizontal stabilizer bar comprises a middle stabilizer bar, a right stabilizer bar, a left stabilizer bar, a long sleeve and a short sleeve, wherein one end of the middle stabilizer bar is fixedly connected with one end of the right stabilizer bar; the other end of the middle stabilizer bar is fixedly connected with one end of the left stabilizer bar; the other end of the right stabilizer bar is movably connected with a lower swing arm of the car by utilizing an end support; the other end of the stabilizer bar is movably connected with the lower swing arm of the car by utilizing the end support; the long sleeve and the short sleeve are meshed together along the axial direction through meshing teeth of meshing ends and sleeved on the periphery of the middle stabilizer bar; and a gap is left between meshing teeth of the long sleeve and the short sleeve. By adopting the horizontal stabilizer bar disclosed by the invention, the car can simultaneously have good ride comfort and anti-tipping capability and low running noise.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a variable-stiffness semi-active lateral stabilizer bar for passenger cars. Background technique [0002] Today's large-scale high-end tourist buses, heavy vehicles have the characteristics of large weight and size, high center of mass, etc., and their rollover stability limit is low, which is easy to induce rollover accidents. Because passenger cars usually carry a large amount of passengers, it is easy to cause "mass death and mass injury", and the resulting loss of life and property is often greater, resulting in a bad social impact. At present, it is widely used to add a stabilizer bar to the car, which can prevent the body from excessive lateral roll and improve ride comfort when turning. The stabilizer bar is a torsion bar spring made of spring steel, shaped like a "U" and placed across the front and rear of the car. However, this device has such problems. Due to the p...

AI Technical Summary

Problems solved by technology

[0004] The actuator has the following problems: 1. The stiffness of the stabilizer bar is limited by changing the contact point between the crossbar and the end bracket during vehicle jumping, which cannot meet the requirements of variable stiffness

2. When the vehicle rolls a lot, although it can improve the comfort of the vehicle, it can't play a good role in preventing roll; 3. There will be noise problems when the whole mechanism moves

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