TW202019733A - Stabilizer bar device and wheel stabilization system - Google Patents

Abstract

A stabilizer bar device which includes two bar assemblies and two drive modules are adapted to be disposed on two suspension control arms which are pivotally connected to two wheels. Each of the bar assemblies includes a first end and a second end, wherein the two first ends of the two bar assemblies are respectively adapted to be connected to the two suspension control arms, and the two drive modules are respectively connected to the two second ends of the two bar assemblies. When an altitude difference forms between the two wheels, the two drive modules drive the two bar assemblies so that one of the two bar assemblies drives the corresponding suspension control arm to move downward, and the other bar assembly drives the corresponding suspension control arm to move upward so as to reduce the altitude difference between the two wheels.

Description

Anti-roll bar device and wheel anti-roll system

The invention relates to an anti-roll bar device and wheel anti-roll system, and in particular to an electronically controlled anti-roll bar device and wheel anti-roll system.

When the vehicle is cornering, if the speed reaches the vehicle's turning limit, the vehicle will have two steering characteristics: understeer and oversteer. Of these two characteristics, understeer is much more stable than oversteer, because when understeer occurs, it can be corrected by simply reducing the speed. Therefore, the design of general road vehicles is almost understeered. The anti-roll bar can also be used to adjust the degree of understeer, so that the vehicle can achieve the characteristics of understeer, and maintain the appropriate handling and rideability.

In addition, when the vehicle is driving on the road section of Dengpo, the left and right wheels will move up and down or even tilt. At this time, the two ends of the suspension system will produce different forces. If the anti-roll bar is installed on the lower arm of the vehicle suspension system or the shock absorber, the anti-roll bar will function to transfer the force to the other side. , To ensure that the force distribution on both sides of the wheel is evenly distributed, and the vehicle's center of gravity shifts less, so that the body will not tilt and prevent overturning. However, although the conventional anti-roll bar can reduce the probability of the body overturning, the body will still vibrate up and down when passing through uneven road sections, which will still cause discomfort to the passengers in the car.

The invention provides an anti-roll bar device, which can reduce the probability of body vibration when traveling through uneven road sections.

The invention provides a wheel anti-rolling system, which has the above-mentioned anti-roll bar device.

The anti-roll bar device of the present invention is suitable for two suspension control arms pivotally connected to two wheels. The anti-roll bar device includes two bar assemblies and two drive modules. Each rod assembly includes a first end and a second end, wherein the two first ends of the two rod assemblies are respectively adapted to be connected to two suspension control arms. The two driving modules are respectively connected to the two second ends of the two rod assemblies. When there is a height difference between the two wheels, the two drive modules drive the two lever assemblies, so that one of the lever assemblies drives the corresponding suspension control arm downward, and the other lever assembly drives the corresponding suspension control arm upward. Move to reduce the height difference between the two wheels.

In an embodiment of the present invention, the above rod assembly includes a curved rod connected to the corresponding drive module and a universal rod movably connected to the curved rod. The universal rod is connected to the suspension control arm, each The first end of the rod assembly is the end of the universal rod connected to the corresponding suspension control arm, and the second end of each rod assembly is the end of the bent rod connected to the drive module.

In an embodiment of the present invention, the above-mentioned bending rod includes a first section and a second section bently connected to the first section, the second end is located on the first section, when each rod assembly When being driven, the second section of the bending rod is turned up or down with the first section as the axis to drive the corresponding suspension control arm to move up or down.

In an embodiment of the invention, the above-mentioned driving module includes a motor.

A wheel anti-rolling system of the present invention includes two wheels, two suspension control arms and an anti-roll bar device. The two suspension control arms are respectively pivotally connected to the two wheels, and the anti-roll bar device includes two bar assemblies and two drive modules. Each rod assembly includes a first end and a second end, wherein the two first ends of the two rod assemblies are respectively adapted to be connected to two suspension control arms. The two driving modules are respectively connected to the two second ends of the two rod assemblies. When there is a height difference between the two wheels, the two drive modules drive the two lever assemblies, so that one of the lever assemblies drives the corresponding suspension control arm downward, and the other lever assembly drives the corresponding suspension control arm upward. Move to reduce the height difference between the two wheels.

In an embodiment of the invention, the above two sensors are respectively disposed on the two suspension control arms.

In an embodiment of the invention, the wheel anti-roll system further includes two shock absorbers, which are arranged on the two wheels, and the two sensors are respectively arranged on the two shock absorbers.

Based on the above, when one of the wheels moves up relative to the other wheel, the wheel anti-rolling system of the present invention can sense the height position of the two wheels through the sensor, and the controller according to the information sensed by the sensor Determine the difference in height and instruct the two drive modules of the anti-roll bar device to operate. One of the drive modules causes one of the rod assemblies to drive the corresponding suspension control arm downward, and the other drive module causes the other rod assembly to drive the corresponding suspension control arm upward to reduce the distance between the two wheels Height difference. The wheel anti-rolling system and anti-roll bar device of the present invention can stabilize the vehicle body through the above adjustments, and reduce the discomfort of the vehicle personnel when the vehicle travels on bumpy roads. This design enables each drive module and corresponding rod assembly to work independently together without direct power transmission between the two rod assemblies.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below and described in detail in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of a wheel anti-rolling system according to an embodiment of the invention. FIG. 2 is a schematic top view of the wheel anti-roll system of FIG. 1. FIG. 3 is a schematic rear view of the wheel anti-roll system of FIG. 1. 4 is a schematic view of the anti-roll bar device of the wheel of FIG. 1. It should be noted that in this embodiment, in order to clearly express the relative position between the wheel anti-roll system 10 and the vehicle, only the corresponding two front wheels and the two suspension control arms 40 corresponding to the two wheels are shown, while the vehicle and the suspension are hidden. The remaining structure of the crane system. Of course, the position of the wheel anti-roll system 10 on the vehicle is not limited to the front wheels. In addition, the wheel anti-rolling system 10 of the present embodiment can be applied to general road vehicles, electric vehicles, mini vehicles, trucks, etc., and the types of applications are not limited.

Please refer to FIGS. 1 to 3. In this embodiment, the wheel anti-roll system 10 includes two wheels 12, two suspension control arms 40 (also called A-arms) pivotally connected to the two wheels 12, and an anti-roll bar device 100. Multiple sensors 20 and a controller 30.

In this embodiment, the anti-roll bar device 100 is adapted to be pivotally connected to the two suspension control systems of the two wheels 12 (which can be connected to the suspension control arm 40 or the suspension itself). In addition, the anti-roll bar device 100 can be fixed to a vehicle chassis frame (not shown) by using a fixing frame, an anti-roll bar fixing rubber, or the like. Of course, the manner in which the anti-roll bar device 100 is fixed to the vehicle is not limited to this, as long as it can fix the anti-roll bar device 100 without affecting its function.

The anti-roll bar device 100 includes two bar assemblies 110 and two driving modules 120. Each rod assembly 110 includes a first end 112 and a second end 114, wherein the two first ends 112 of the two rod assemblies 110 are respectively adapted to be connected to the two suspension control arms 40, and the two second ends 114 are respectively connected to the two Drive module 120.

FIG. 5 is a partial schematic diagram of the wheel anti-roll system of FIG. 1. 6 is a partial schematic view of the wheel anti-rolling system of FIG. 5 from another perspective. Please refer to Figure 5 to Figure 6. In detail, in this embodiment, each bar assembly 110 of the anti-roll bar device 100 includes a bending bar 116 and a universal bar 118 pivotally connected to the bending bar 116. Each bending rod 116 is connected to the corresponding driving module 120, and the gimbal 118 is pivotally connected to the corresponding suspension control arm 40. In this embodiment, the end of the universal rod 118 connected to the corresponding suspension control arm 40 is the first end 112 of the rod assembly 110 described above, and the end of the curved rod 116 connected to the drive module 120 is the rod assembly described above The second end of 110 is 114. Of course, in other embodiments, the form of the rod assembly 110 is not limited thereto.

In addition, in the present embodiment, the above-mentioned bending rod 116 can be divided into a first section 116a and a second section 116b, and the second section 116b is bent and connected to the first section 116a, and presents a shape close to an L shape. shape. The second end 114 of the rod assembly 110 is located on the first section 116 a of the curved rod 116. The rod assembly 110 is adapted to rotate about the first section 116a. In more detail, the first section 116 a of the bending rod 116 is connected to the driving module 120 by the second end 114 of the rod assembly 110. When the driving module 120 drives the rod assembly 110 to rotate, since the first section 116a of the bending rod 116 is coaxial with the driving module 120, the bending rod 116 rotates around the first section 116a. In addition, since the second section 116b of the bending rod 116 is not parallel to the first section 116a, the rotation of the bending rod 116 about the first section 116a will drive the second section 116b and the gimbal 118 to turn upward or toward Turning down causes the suspension control arm 40 to move up or down, and the suspension control arm 40 further drives the wheel 12 to move up or down.

It should be noted that, in this embodiment, rubber bearings or other soft materials may be provided between the bending rod 116, the universal rod 118, and the suspension control arm 40 for cushioning and spacing, and used for cushioning and shock absorption. Moreover, in addition to the gimbal rod 118, the suspension system is also equipped with tripods, monk heads, Li Zichuan and other parts to fix the rod assembly and enable it to make a limited rotation. Of course, in other embodiments, the parts used between the suspension system and the anti-roll bar device 100 are not limited thereto.

In addition, in this embodiment, the driving module 120 takes a motor as an example. The motor is, for example, a planetary gear reduction motor, a DC brush motor, a DC brushless motor, an AC motor, or a linear motor. However, the type of the drive module 120 Not limited to this. When the driving module 120 is a motor, the operator can change the torque output by the motor by supplying different voltages to the motor. That is to say, the driving module 120 of this embodiment has a torque-adjustable characteristic, so that the rigidity of the anti-roll bar device 100 can be adjusted according to different usage occasions and user preferences to adapt to the application of variable fields . In addition, the driving module 120 may further include a planetary gear set to achieve the effect of deceleration and speed increase.

Please return to FIG. 1. The wheel anti-roll system 10 further includes two shock absorbers 14. The two shock absorbers 14 are disposed on the two wheels 12. These sensors 20 are respectively placed on the two suspension control arms 40 or/and the two shock absorbers 14, and are suitable for sensing the change in the height direction of the two wheels 12 and the height difference generated by the two wheels 12 while the vehicle is traveling . In this embodiment, the sensor 20 is, for example, a gyroscope, a position sensor, an acceleration sensor, or the like. Of course, in other embodiments, the type, number, and installation positions of the sensors 20 are not limited thereto.

In this embodiment, the controller 30 is electrically connected to the two driving modules 120 and the sensors 20, so that the sensor 20 can transmit the sensing result to the controller 30, and the controller 30 can instruct the driving The module 120 operates. The signal transmission method between the controller 30 and the two driving modules 120 and between the controller 30 and the sensor 20 may use wireless transmission technologies such as WIFI and Bluetooth, or may be connected through a physical line, which is not limited The way of electrical connection.

It is worth mentioning that the conventional linear anti-roll bar is directly connected to the two suspension control arms. When the wheel on one side of the vehicle is pressed against the bump, the conventional linear anti-roll bar will transfer the force to the other The side wheels make the two wheels equally stressed to prevent the body from rolling too much. However, such a structure will cause the body to vibrate and the wheels to be insufficiently grounded.

In order to avoid the above problem, in this embodiment, the two rod assemblies 110 are not in contact and are independent. Each drive module 120 and the corresponding rod assembly 110 can operate independently together, and operate the connected suspension control arm 40 and the corresponding wheel 12 without interfering with another set of drive modules 120, the corresponding rod assembly 110 and its The connected suspension control arm 40 and the corresponding wheel 12. Therefore, the force of one wheel 12 is not directly transmitted to the other wheel 12. In addition, since there is no contact between the two lever assemblies 110, the driving module 120 can be turned off under a specific usage situation to form an operation mode of the anti-roll bar device 100 to facilitate driving in special situations.

In this embodiment, the two sensors 20 can sense the height position or height change of the two wheels 12 and transmit this information to the controller 30. The controller 30 can calculate the height difference between the two wheels, and instruct the two drive modules 120 to operate according to the height difference information, so that one of the rod assemblies 110 drives the corresponding suspension control arm 40 to move downward, and the other The rod assembly 110 drives the corresponding suspension control arm 40 to move upward to reduce the height difference between the two wheels 12. More precisely, the reaction torque provided by the drive modules 120 can have a restraining effect on the relative height changes of the two wheels 12.

More specifically, when the vehicle adopting the wheel anti-rolling system 10 of this embodiment passes through a bumpy road section, the left and right wheels 12 will continuously produce a height difference due to the uneven road surface. Since the two rod assemblies 110 are not in contact, the two suspensions The power between the systems is not transferred to each other. When the suspension control arm 40 moves up and down with the wheel 12, the sensor 20 located on the suspension control arm 40 senses the displacement and transmits the signal to the controller 30. After the controller 30 receives the signal, The driving module 120 will be instructed to operate. If the wheel 12 moves upward relative to the wheel 12 on the other side, the controller 30 instructs the drive module 120 to give the torque corresponding to the suspension control wall 40 of the wheel 12 to reverse, so that the wheel 12 is downward.

Conversely, if the other wheel 12 moves down, the controller 30 will instruct another group of drive modules 120 to give the corresponding suspension control wall 40 a reverse torque to make the wheel 12 move upward. The anti-roll bar device 100 of this embodiment can achieve the anti-roll effect under the premise that the power between the two suspension control arms 40 is not transmitted to each other, so that the vehicle has better rideability.

On the other hand, in this embodiment, when the vehicle is cornering, the two suspension control walls 40 of the two wheels 12 will be subjected to the centrifugal force during the cornering, so that the inner suspension system will be stretched, and the outer suspension system will Being compressed, the two suspension control arms 40 will have a large height difference, causing the vehicle to roll. The sensor 20 senses the vertical displacement of the suspension control arm 40 and transmits the signal to the controller 30. After receiving the signal, the controller 30 will instruct the two drive modules 120 to drive the two suspension control arms 40 to generate reverse torque to suppress the roll, reduce the height difference, and achieve the effect of preventing the vehicle from turning too fast when turning. .

In recent years, micro electric vehicles have gradually become popular. Such micro vehicles have the characteristics of small size, light weight and low cost. Most of these types of vehicles are not driving at high speeds, so most of these micro electric vehicles are not equipped with anti-roll bars. Even if a conventional linear anti-roll bar is to be installed, since Europe is currently the main market for micro electric vehicles, and European cities have many Belgian roads, if the conventional linear anti-roll bar is installed on the micro electric vehicle, it will cause rideability. Insufficient condition. The wheel anti-rolling system 10 of this embodiment has fewer components, small volume, light weight, and no force is directly transmitted between the two wheels 12, and the wheel anti-rolling system 10 of this embodiment uses an electronic signal control system. Therefore, the wheel anti-rolling system 10 of this embodiment is very suitable for combination with a miniature electric vehicle, which can greatly improve the riding comfort and stability of this type of vehicle. Of course, the wheel anti-rolling system 10 of this embodiment can also be applied to other vehicle types, and is not limited to micro electric vehicles.

In summary, the wheel anti-roll system of the present invention can sense that one of the wheels moves upward relative to the other wheel through the sensor, and the controller instructs the anti-roll bar device according to the information sensed by the sensor The drive module operates. The driving module causes one of the rod assemblies to drive the corresponding suspension control arm downward, and the other rod assembly to drive the corresponding suspension control arm upward to reduce the height difference between the two wheels. The wheel anti-rolling system and anti-roll bar device of the present invention can stabilize the vehicle body through the above adjustments, and reduce the discomfort of the vehicle personnel when the vehicle travels on bumpy roads. In addition, the design of the present invention allows each drive module and the corresponding rod assembly to work independently without interfering with another set of drive modules and the corresponding rod assembly, and can cooperate with each other through adjustment of the controller. The forces between them also do not affect each other. In addition, the vehicle anti-rolling system of the present invention has few constituent elements, small volume, and light weight, so it is also very suitable for use in miniature electric vehicles.

Although the present invention has been disclosed as above with the embodiments, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

10: Wheel anti-rolling system 12: Wheel 14: shock absorber 20: sensor 30: controller 40: suspension control arm 100: anti-roll bar device 110: lever assembly 112: first end 114: second end 116 : Curved rod 116a: First section 116b: Second section 118: Universal rod 120: Drive module

FIG. 1 is a schematic diagram of a wheel anti-rolling system according to an embodiment of the invention. FIG. 2 is a schematic top view of the wheel anti-roll system of FIG. 1. FIG. 3 is a schematic rear view of the wheel anti-roll system of FIG. 1. 4 is a schematic diagram of the anti-roll bar device of the wheel anti-roll system of FIG. 1. FIG. 5 is a partial schematic diagram of the wheel anti-roll system of FIG. 1. 6 is a partial schematic view of the wheel anti-rolling system of FIG. 5 from another perspective.

10: Wheel anti-rolling system

12: Wheel

20: Sensor

30: Controller

40: Suspension control arm

14: Shock absorber

100: anti-roll bar device

110: Rod assembly

112: first end

114: Second end

116: curved rod

116a: Section 1

116b: Second section

118: gimbal

120: driver module

Claims (10)

An anti-roll bar device suitable for being disposed on two suspension control arms pivotally connected to two wheels includes: two bar assemblies, each of which includes a first end and a second end, wherein The two first ends are respectively adapted to be connected to the two suspension control arms; and the two drive modules are respectively connected to the two second ends of the two rod assemblies, wherein when a height difference occurs between the two wheels, the two The driving module drives the two rod assemblies, so that one of the rod assemblies drives the corresponding suspension control arm to move downward, and the other rod assembly drives the corresponding suspension control arm to move upward to reduce the two This height difference between the wheels. The anti-roll bar device as described in item 1 of the patent application scope, wherein each of the bar assemblies includes a curved bar connected to the corresponding drive module and a universal bar movably connected to the curved bar. A directional rod is connected to the suspension control arm, the first end of each rod assembly is one end of the universal rod connected to the corresponding suspension control arm, and the second end of each rod assembly is the bent rod Connected to one end of the drive module. The anti-roll bar device as described in item 2 of the patent application scope, wherein each of the bending bars includes a first section and a second section bently connected to the first section, and the second end is located at the On the first section, when each of the rod assemblies is driven, the second section of the curved rod is turned up or down with the first section as the axis to drive the corresponding suspension control arm Move or move down. The anti-roll bar device as described in item 1 of the patent application, wherein each of the driving modules includes a motor. A wheel anti-rolling system, comprising: two wheels; two suspension control arms, which are respectively pivotally connected to the two wheels; an anti-roll bar device, comprising: two bar assemblies, each of which includes a first end and a second End, wherein the two first ends of the two rod assemblies are respectively connected to the two suspension control arms; and the two driving modules are respectively connected to the two second ends of the two rod assemblies; the two sensors are respectively used To sense the movement of the two wheels in the height direction; a controller electrically connected to the two sensors and the two drive modules, wherein when the two sensors sense one of the wheels relative to the other When one of the wheels moves up to produce a height difference, the controller instructs the two drive modules to operate, so that one of the lever assemblies drives the corresponding suspension control arm to move downward, and the other lever assembly drives the corresponding The suspension control arm moves upward to reduce the height difference between the two wheels. The wheel anti-rolling system as described in item 5 of the patent application scope, wherein the two sensors are respectively disposed on the two suspension control arms. The wheel anti-rolling system as described in item 5 of the patent application scope further includes: two shock absorbers, which are arranged on the two wheels, and the two sensors are respectively arranged on the two shock absorbers. The anti-rolling system for wheels as described in item 5 of the patent application, wherein each of the rod assemblies includes a curved rod connected to the corresponding drive module and a universal rod movably connected to the curved rod. A directional rod is connected to the suspension control arm, the first end of each rod assembly is one end of the universal rod connected to the corresponding suspension control arm, and the second end of each rod assembly is the bent rod Connected to one end of the drive module. The anti-rolling system for wheels as described in item 8 of the patent application, wherein each of the bending bars includes a first section and a second section bently connected to the first section, the second end is located at the On the first section, when each of the rod assemblies is driven, the second section of the curved rod is turned up or down with the first section as the axis to drive the corresponding suspension control arm Move or move down. The anti-rolling system for wheels as described in item 5 of the patent application, wherein each of the drive modules includes a motor.

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