Novel car anti-roll bar

Abstract

The invention specifically relates to a novel automobile anti-roll bar with light weight, variable torsional stiffness and power generation function; the anti-roll bar includes a torsion bar, and the torsion bar includes a rod body, and a connecting sleeve is arranged at each end of the rod body. The connecting sleeve passes through the side of one end of the connecting arm, and the other end of the connecting arm is connected to the suspension swing arm; the rod body includes an annular ring and a torsion shell; the connecting arm, connecting sleeve, and torsion shell are all grid structures, which effectively reduce the anti-roll bar quality; when the torsion shell is torsionally deformed, the torsion-resistant vertical edge in the torsion-resistant honeycomb unit is deformed, and the generator coil in it generates a current, which converts the energy of the wheel beating into electric energy, and effectively recovers energy; the controller can connect according to the magnitude of the current Through part or all of the control switches, part or all of the anti-torsion vertical sides generate power, thereby changing the torsional stiffness of the torsion shell, realizing the active adjustment of the torsional stiffness of the anti-roll bar, and improving the driving stability and adaptability of the car.

Description

technical field [0001] The invention relates to the technical field of automobile suspension, in particular to a novel automobile anti-roll bar. Background technique [0002] The anti-roll bar is an important part of the independent suspension system of the automobile. It is generally installed on the front or rear axle of the automobile and connected to the left and right suspensions. Elastic torsion bar, the two ends of the torsion bar are connected with the suspension arm through the connecting arm, the torsion bar and the connecting arm form a U-shaped structure, when the body only moves vertically, the deformation of the suspension on both sides is the same, and the anti-roll bar does not work . When the body rolls, the suspension on both sides jumps inconsistently, the anti-roll bar twists, and the elastic force of the bar becomes the resistance to the continued roll of the body, playing the role of anti-rolling. [0003] In order to reduce the impact force when the ...

AI Technical Summary

Problems solved by technology

[0003] In order to reduce the impact force when the wheel jumps vertically, it is generally desired to reduce the unsprung mass of the car as much as possible, but the torsion bar in the middle of the anti-roll bar is generally made of solid spring steel material, which is heavy and consumes a lot of materials. The bending moment transmitted by the connecting arm at the end is relatively large, so the connecting arm is generally made of cast iron or cast steel, and its cross-sectional size and weight are also relatively large. In order to reduce the unsprung mass, the weight of the anti-roll bar should be as small as possible

[0004] When the car is running normally, the amplitude of the vertical vibration of the wheel changes greatly. It is hoped that the torsional stiffness of the anti-roll bar will be low when the vertical amplitude of the wheel is small, so that the effect of the vertical spring and shock absorber can be fully exerted and the ride comfort can be improved. When the vertical amplitude of the wheel is large, it is desirable that the torsional stiffness of the anti-roll bar is high, which can improve the driving stability of the car, but the current anti-roll bar torsional stiffness is often a fixed value, which cannot take into account both situations at the same time. No. CN201511025991.X is an electronically controlled separated active anti-roll bar, including a left torsion bar, a right torsion bar, an active control module, a relative displacement sensor and a steering wheel angle sensor; wherein the active control module includes an ECU, a torque motor , left driving spur gear, right driving spur gear, left driving bevel gear, right driving bevel gear, left driven bevel gear, right driven bevel gear, left torsion bar gear, right torsion bar gear, planetary gear, left electromagnetic clutch, The planetary gear electromagnetic clutch and the right electromagnetic clutch can adjust the stiffness of the anti-roll bar through the active control module, but the structure of this patent is complex and there are many parts, which further increases the weight of the anti-roll bar, and the manufacturing and maintenance costs are high, making it difficult to large-scale promotion

[0005] The existing anti-roll bar has a single function, which only plays the role of anti-rolling of the whole vehicle. The energy of the vertical vibration of the wheel is consumed by the shock absorber, which cannot be effectively recovered, and cannot meet the relevant requirements of future new energy vehicles for energy recovery.

Images