A balancing system for in-wheel suspension systems and a rim structure with this system

Abstract

The invention relates to a balancing system for in-wheel suspension systems and a rim structure with this system. The invention particularly relates to a balancing system to eliminate the mass imbalance caused by the suspension systems placed inside the wheel and a rim structure with this system.

Description

[0001] A BALANCING SYSTEM FOR IN-WHEEL SUSPENSION SYSTEMS AND A RIM STRUCTURE WITH THIS SYSTEM

[0002] Technical Field

[0003] The invention relates to a balancing system for in-wheel suspension systems and a rim structure with this system.

[0004] The invention particularly relates to a balancing system to eliminate the mass imbalance caused by the suspension systems placed inside the wheel and a rim structure with this system.

[0005] State of the Art

[0006] Suspension systems used in vehicles absorb the vibrations coming to the wheels of vehicles and offer a more comfortable driving experience to the driver and passengers. Road holding is also increased as the wheels adapt to changes in the surface. Today, there are systems that provide suspension by being positioned between the wheels of the vehicle and the chassis, as well as systems that are positioned directly within the wheels.

[0007] One of the most important problems seen in rotating systems and therefore in-wheel suspension systems is mass imbalance. Suspension systems with different orientations placed inside the wheel geometry change shape under the effect of external forces coming from vertical or lateral directions during the movement of the wheel on the road. As a result of this shape change, a distance difference expressed as mismatch is formed between the center of rotation of the wheel and the center of gravity. This mismatch causes imbalance and leads to significant vibration in vehicles with such wheels. In addition, as mentioned, mass imbalance problems in the suspension system cause vehicles not to be able to reach high speeds.

[0008] It is known that vehicle wheels often experience static imbalance. When looked at a single plane, the escape of the center of mass from the center of rotation causes the weight force at the center of gravity to shift in space due to movement. Therefore, undesirable dynamic force affects the bearings during the movement period, causes the bearings to be damaged and creates vibration at a certain frequency. As a result, the fatigue strength of the vehicle decreases, and comfort deteriorates.

[0009] As a result of the research carried out on the subject, application numbered EP2986458A1 has been found. In the relevant application, a wheel structure comprising suspension inside is described, however, the wheel system does not include a system to keep the center of rotation and the center of mass equal.

[0010] In conclusion, it has become necessary to make a development in the relevant technical field due to the drawbacks described above and the inadequacy of present solutions on the subject.

[0011] Object of the Invention

[0012] The invention aims to solve the above-mentioned drawbacks by being inspired by the present situations.

[0013] The main object of the invention is to carry out a balancing system that can operate actively or passively, ensuring that the center of mass always remains at the same point as the center of rotation after the shape change of the in-wheel suspension architecture.

[0014] Another object of the invention is to eliminate the mass imbalance problem experienced in the in-wheel suspension systems and to provide the use of in-wheel suspension systems in vehicles that accelerate to high speeds.

[0015] In order to achieve the objects mentioned above, it is a balancing system that is positioned between a rim being surrounded by the vehicle wheel and a wheel hub connected to the vehicle body and that is used in an integrated manner with the suspension systems used by being mounted inside the vehicle wheels to absorb the vibrations coming to the vehicle wheels and to ensure that the center of mass always remains at the same point as the center of rotation after the shape change of the inwheel suspension architecture, comprising the following:

[0016] • a fixed pulley that is engaged to the wheel hub and can only perform rotational movements, a movable pulley that is engaged to the rim surface and can perform rotational and translational movements, a flexible belt that is positioned to rotate and move between the fixed pulley and the movable pulley,

[0017] • a mass fixed to a point on the belt, that can move linearly along the axis to which it is connected by the movement of the belt according to the displacement of the wheel relative to the ground, in order to ensure that the center of motion rotation and the center of mass are always kept equal.

[0018] The structural and characteristic features and all the advantages of the invention will be more clearly understood by means of the drawings given below and the detailed description written with references to these drawings, and therefore the evaluation needs to be made by taking these drawings and the detailed description into consideration.

[0019] Figures for Helping Understanding of the Invention

[0020] Figure 1 is a general view of the balancing system.

[0021] Figure 2 is a general view of the rim structure.

[0022] Figure 3a and Figure 3b show the motion of mass in the balancing system.

[0023] Figure 4 shows the in-wheel suspension system used in the state of the art.

[0024] Description of Piece References

[0025] 10 Balancing system

[0026] 11 Fixed pulley

[0027] 12 Movable pulley

[0028] 13 Belt

[0029] 14 Mass

[0030] 20 Rim

[0031] 30 Wheel hub

[0032] 40 Suspension system

[0033] 50 Rim structure

[0034] Detailed Description of the Invention

[0035] In this detailed description, the preferred embodiments of balancing system (10) and rim structure (50), which are the subject of the invention are described only for a better understanding of the subject. The balancing system (10) will be used in an integrated manner with suspension systems (40) used by being mounted inside the vehicle wheels. The suspension system (40) absorbs the vibrations coming to the vehicle wheel and is positioned between a rim (20) surrounded by the wheel of the vehicle and a wheel hub (30) connected to the vehicle body.

[0036] The balancing system (10) will be positioned between the rim (20) and the wheel hub (30) and in the same direction with the suspension system (40), ensuring that the center of mass always remains at the same point as the center of rotation. The balancing system (10) basically comprises a fixed pulley (11), a movable pulley (12), a belt (13) and a mass (14). While the fixed pulley (11) is connected to the wheel hub (30) and can only perform rotational movements, the movable pulley (12) is connected to the rim (20) surface and can perform rotational and translational movements. The belt (13) is in a flexible structure and positioned in a way that it rotates and moves between the fixed pulley (11) and the movable pulley (12). The mass (14) is fixed to a point on the belt (13) and can move linearly along the axis to which it is connected by the movement of the belt (13). The mass (14) moves linearly automatically, actively or passively, according to the displacement of the wheel relative to the ground, and this movement ensures that the center of rotation and the center of mass are always kept equal.

[0037] As can be seen in Figure 2, at least one, preferably three, the balancing system (10) can be used in a rim structure (50).

Claims

CLAIMS1. A balancing system (10) that is positioned between a rim (20) being surrounded by the vehicle wheel and a wheel hub (30) connected to the vehicle body and that is used in an integrated manner with the suspension systems (40) used by being mounted inside the vehicle wheels to absorb the vibrations coming to the vehicle wheels and to ensure that the center of mass always remains at the same point as the center of rotation after the shape change of the in-wheel suspension architecture, characterized by comprising:• a fixed pulley (11) that is engaged to the wheel hub (30) and can only perform rotational movements,• a movable pulley (12) that is engaged to the rim (20) surface and can perform rotational and translational movements,• a flexible belt (13) that is positioned to rotate and move between the fixed pulley (11 ) and the movable pulley (12),• a mass (14) fixed to a point on the belt (13), that can move linearly along the axis to which the mass (14) is connected by the movement of the belt (13) according to the displacement of the wheel relative to the ground, in order to ensure that the center of motion rotation and the center of mass are always kept equal.

2. A rim structure (50), characterized by comprising at least one balancing system (10) according to claim 1 .

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