Automobile sway bar high in electricity generating efficiency

Abstract

The invention specifically relates to an automobile anti-roll bar with light weight and variable torsional stiffness with high power generation efficiency; the anti-roll bar includes a torsion bar, the torsion bar includes a rod body, and two ends of the rod body are provided with a connecting sleeve, and the connecting sleeve wears Through the side of one end of the connecting arm, the other end of the connecting arm is connected with the suspension swing arm; the rod body includes an annular ring and a torsion shell; the connecting arm, the connecting sleeve and the torsion shell are all grid-like structures, which can effectively reduce the mass of the anti-roll bar; torsion When the shell is torsionally deformed, the torsion-resistant vertical side in the torsion-resistant honeycomb unit is deformed, and the generator coil in it generates current, which converts the energy of the wheel bounce into electrical energy. The initial gap between the two permanent magnets in the generator unit can be set When the gap changes, the induced current is very large, which effectively improves the power generation efficiency.

Description

technical field [0001] The invention relates to the technical field of automobile suspension, in particular to an automobile anti-roll bar with high power generation efficiency. 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 ...

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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] And the power generation efficiency of the current vibration power generation device is also low, mainly because the principle of the current vibration power generation device is to generate current by cutting the magnetic induction line through the conductor, but limited by the space, the moving range of the conductor is generally small, so the power generation efficiency is very low

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