CN207450017U - The steering limits device of anti-cart rollover - Google Patents
The steering limits device of anti-cart rollover Download PDFInfo
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- CN207450017U CN207450017U CN201721432953.0U CN201721432953U CN207450017U CN 207450017 U CN207450017 U CN 207450017U CN 201721432953 U CN201721432953 U CN 201721432953U CN 207450017 U CN207450017 U CN 207450017U
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- steering column
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- steering
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Abstract
Present disclose provides a kind of steering limits device of anti-cart rollover, including：Cylindrical shell, steering column for vehicle pass through；Paired arc-shaped magnet unit, is arranged in the cylindrical shell and surrounds the steering column and pass through Flexible element and be separated from each other not in contact with the steering column, and the arc magnet unit is towards being provided with friction material on the inside of steering column；Electromagnetic Control unit is arranged on the outside of the paired arc-shaped magnet unit, promotes the paired arc-shaped magnet unit relative motion using the electromagnetic field generated in the energized state so that friction material carries out CONTACT WITH FRICTION with the steering column outer wall thereon.
Description
Technical field
This disclosure relates to a kind of steering limits device of anti-cart rollover.
Background technology
Oversize vehicle is travelled on expressway there is common overload, exceed the speed limit phenomenon.Either motor bus or bulk production
Vehicle, when people is filled or object especially overloads, center of gravity will be high.When cart, which runs into front, the emergency of vehicle, greatly
Vehicle driver subconscious suddenly can beat steering wheel by instinct.When at this time due to excessive velocities, vehicle inertia is much larger than wheel, vehicle
The support force of frame, and braking distance is usually long, is just present with rollover phenomenon.In the event of rollover, the safety of passengers inside the car
It is it cannot be guaranteed that either dead or wounded.If there be passerby, other vehicles in side, when cart is turned on one's side, dead probability is struck the beam almost
It is that very, this is a God-awful thing.
According to institute's inspection information, prevent vehicle rollover from mainly having optimization reduction gear mechanism, control load-carrying and traveling speed both at home and abroad
Spend two research directions.
Therefore, a kind of device of people's serious hope can eliminate driver's subconsciousness and suddenly beat steering wheel and vehicle rollover situation is caused to go out
It is existing.
The content of the invention
To solve the above-mentioned problems, present disclose provides a kind of steering limits device of anti-cart rollover, including：Outside cylinder
Shell, steering column for vehicle pass through；Paired arc-shaped magnet unit, is arranged in the cylindrical shell and surrounds the steering column simultaneously
It is separated from each other by Flexible element not in contact with the steering column, the arc magnet unit is towards being provided on the inside of steering column
Friction material；Electromagnetic Control unit is arranged on the outside of the paired arc-shaped magnet unit, utilizes generation in the energized state
Electromagnetic field promote the paired arc-shaped magnet unit relative motion so that thereon friction material and the steering column outer wall into
Row CONTACT WITH FRICTION；Angular-rate sensor, for detecting the rotational angular velocity of steering column；And limitation command unit, compare and examined
The angular speed of survey based on the angular speed threshold value corresponding to Vehicle Speed, and in the angular speed detected with being more than angle speed
When spending threshold value, the instruction for driving paired arc-shaped magnet unit is sent to Electromagnetic Control unit.
According to the steering limits device that the anti-cart of the disclosure is turned on one's side, wherein the limitation command unit is current based on vehicle
Travel speed and the angular speed calculating detected are supplied to the exciting current value of the Electromagnetic Control unit, and by the exciting current
Value is included in sent instruction.
According to the steering limits device that the anti-cart of the disclosure is turned on one's side, pressure sensor is further included, senses the arc
Contact between magnet unit inner surface and steering column outer wall, wherein the limitation command unit pressure sensing
The pressure that device is sensed and the pressure threshold corresponding to the angular speed threshold value, and it is less than the angular speed in the pressure sensed
During pressure threshold corresponding to threshold value, the exciting current value of the Electromagnetic Control unit is supplied to, until the pressure passes
Until the pressure that sensor is sensed is equal to the pressure threshold.
According to the steering limits device that the anti-cart of the disclosure is turned on one's side, data updating unit is further included, will be improved
Exciting current value correspond to the angular speed threshold value and pressure threshold and be stored in threshold value storage unit.
The steering limits device turned on one's side by the anti-cart of the disclosure can combine actual travel situation and the department of vehicle
The angular speed of the rotation steering column of machine, by the turning velocity of steering column and angle control in the scope for preventing that vehicle from may turn on one's side
It is interior, encounter the various losses generated under fortuitous event to reduce vehicle as far as possible.
Description of the drawings
Attached drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and for explaining the principle of the disclosure together with specification.
Figure 1A show the schematic diagram for the steering limits device turned on one's side using anti-cart in accordance with an embodiment of the present disclosure.
Figure 1B show the steering limits device longitudinal sectional view turned on one's side using anti-cart in accordance with an embodiment of the present disclosure.
Fig. 1 C show the horizontal section view for the steering limits device turned on one's side using anti-cart in accordance with an embodiment of the present disclosure
Figure.
Fig. 2 show the arc-shaped magnet list for the steering limits device turned on one's side using anti-cart in accordance with an embodiment of the present disclosure
First movement under force principle schematic.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
It is only merely for the purpose of description specific embodiment in the term that the disclosure uses, and is not intended to be limiting and originally opens.
" one kind " of singulative used in disclosure and the accompanying claims book, " described " and "the" are also intended to including most shapes
Formula, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refer to and comprising
One or more associated list items purposes any or all may combine.
It will be appreciated that though various information may be described using term first, second, third, etc. in the disclosure, for example,
First magnet can also be referred to as the second magnet, and vice versa, but these information should not necessarily be limited by these terms.These terms are only used
Same type of information is distinguished from each other out.Depending on linguistic context, word as used in this " if " can be construed as
For " ... when " or " when ... ".
In order to which those skilled in the art is made to more fully understand the disclosure, with reference to the accompanying drawings and detailed description to this public affairs
It opens and is described in further detail.
Figure 1A -1C show showing for the steering limits device 100 that the anti-cart of use in accordance with an embodiment of the present disclosure is turned on one's side
Intention and sectional view.As shown in Figure 1A, the cylindrical shell 110 of the limits device 100 is wrapped in steering column for vehicle 115.Vehicle turns
Steering wheel for vehicle is connected to the end of column 115.Paired arc-shaped magnet unit 120-1 and 120- are disposed in cylindrical shell 110
2.Arc-shaped magnet unit 120-1 and 120-2 are a kind of permanent magnet, mounted on cylindrical shell 110 inner wall and steering column 115 it is outer
Between wall, arc-shaped magnet unit 120-1 and 120-2 are separated from each other in a normal state by elastic element 125, thus not with
Steering column 115 contacts.Split forms a tubbiness being located in cylindrical shell 110 each other by arc-shaped magnet unit 120-1 and 120-2
And surround the steering column 115.In the inner wall of the outer wall towards steering column for vehicle 115 of arc-shaped magnet unit 120-1 and 120-2
On be provided with one layer of friction material 130.This layer of friction material 130 can be conventional automotive brake pad friction material, can also
It is a kind of abrasive rubber material.Although the friction material 130 shown here is located at the interior of arc-shaped magnet unit 120-1 and 120-2
Wall, but can also friction material be directly fabricated to friction material ring set mounted in steering column 115.In this way, when steering column 115 exists
During rotation, if friction material abuts against the outer wall of steering column 115, the rotation of steering column 115 will be restricted.Work as friction material
When expecting that the pressure for abutting against steering column 115 is sufficiently large, steering column 115 will be stuck and cannot rotate.
In order to control the rotation of arc-shaped magnet unit 120-1 and 120-2 using friction mode control steering column 115, the limit
Device 100 processed provides an Electromagnetic Control unit 140.The Electromagnetic Control unit 140 can be electromagnet or electromagnetic coil side
Formula.As shown in Figure 1, the Electromagnetic Control unit 140 is arranged in 120 outside of paired arc-shaped magnet unit.When the Electromagnetic Control
When unit 140 is energized, the electromagnetic field generated promotes paired arc-shaped magnet the unit 120-1 and 120-2 to transport toward each other
It is dynamic, it is close towards steering column 115, so that friction material 130 carries out CONTACT WITH FRICTION with 115 outer wall of steering column thereon.
In order to control the magnetic field intensity that Electromagnetic Control unit 140 is generated when being powered, thus control promotes the paired arc
Shape magnet unit 120-1 and 120-2 against 115 outer wall of steering column pressure, so as to control friction material 130 to described turn
Apply frictional resistance to 115 outer wall of column, provide a limitation command unit 150.Limiting command unit 150 can be according to specific feelings
Condition to send command signal, the current value that instruction power is provided to Electromagnetic Control unit 140 to Electromagnetic Control unit 140.The limit
There are one threshold value storage unit 160, which is stored with corresponding under the various transport conditions of vehicle the tool of device 100 processed
It is friction threshold between the turning velocity threshold value of steering column, corresponding friction material 130 and 115 outer wall of steering column, corresponding
115 outer wall of friction material 130 and the steering column between pressure threshold etc..Limiting command unit 150 can be according to vehicle
Specific travel speed constantly reads this each threshold value corresponding with speed, and is buffered in local caches.When travel speed changes
When, the threshold value cached in local caches also correspondingly changes.
The data that storage unit 160 stores are based on operational research and movement physics principle obtains.Specifically, by dividing
It analysed loss analysis when cart turns in various degree in emergency, built the cart trip model based on speed, obtained
Above-mentioned related data.Specifically, by the collection of real case or measurement actual test, the rollover for obtaining various vehicles is related
Data.For example, under which kind of travel speed, using which kind of turning velocity, vehicle rollover can be caused, and the critical value is set
Critical turning velocity (for example, angular speed threshold value of steering column 115) under the travel speed.
For this purpose, the limits device 100 of the disclosure includes angular-rate sensor 170, it is used to detect the steering column 115 of vehicle
Current operation angular speed.It limits command unit 150 and gathers the current operation angular speed of steering column 115 in real time, and compare in real time
Angular speed threshold value of the current operation angular speed of steering column 115 corresponding to corresponding current driving speed.At the angle detected
When speed is more than the angular speed threshold value, the instruction for driving paired arc-shaped magnet unit 120 is sent to Electromagnetic Control unit 140.
Described instruction includes the current magnitude for being supplied to Electromagnetic Control unit 140.When the angular speed detected and the angular speed threshold
When difference between value is bigger, the current magnitude of corresponding output is also bigger, so that friction material 130 is against steering column 115
Pressure is bigger, and frictional force is also bigger, so as to quickly reduce by 115 angular speed of steering column, reduces steering angle, reduces vehicle rollover
Danger.
Although can the frictional force between friction material 130 and steering column 115 be controlled by controlling electricity.But
As run time passs, the abrasion of friction material 140, the distance between friction material 140 and steering column 115 can increase.Cause
The corresponding current value of this output can cannot be sufficient so that generate enough frictional force between friction material 130 and steering column 115.
For this purpose, the disclosure is provided with a pressure sensor 170 being arranged on 115 outer wall of steering column for limits device 100, for feeling
Survey the contact between 120 inner surface of arc magnet unit and 115 outer wall of steering column.The limitation command unit 150
After instruction Electromagnetic Control unit 140 drives the arc magnet unit 120, the sensing of pressure sensor 170 is obtained in real time
Pressure, and the pressure that is sensed of the pressure sensor 170 and the pressure threshold corresponding to the angular speed threshold value.
When the pressure sensed is less than the pressure threshold corresponding to the angular speed threshold value, the limitation command unit 150, which improves, to be provided
To the exciting current value of the Electromagnetic Control unit 140, until the pressure that the pressure sensor 170 is sensed is equal to the pressure
Until force threshold.
In order to adapt to the concrete condition of vehicle, it is necessary to update storage the data in unit 160 by actual conditions.Cause
This, the disclosure is provided with data updating unit 180 for limits device 100.Data updating unit 180 is in the limitation command unit
150 when being supplied to the exciting current value of the Electromagnetic Control unit 140, using the exciting current value finally provided as electric current
Threshold value is stored in the data entry that travel speed is corresponded in storage unit 160, so that storage unit storage and this vehicle
Adaptable model data.
Fig. 2 show the arc-shaped magnet list for the steering limits device turned on one's side using anti-cart in accordance with an embodiment of the present disclosure
First movement under force principle schematic.As shown in Fig. 2, it is subject to Electromagnetic Control unit 140 in arc-shaped magnet unit 120-1 and 120-2
Electromagnetic action under, the power F that is promoted relatively, and drawing close in opposite directions is tightly wrapped under the action of electromagnetic force F and turned as a result,
To column 115, as a result, with the increase of electromagnetic force F, arc-shaped magnet unit 120-1 and 120-2 is to the pressure on 115 surface of steering column
Also increase, so that the friction material 130 of the inner surface of arc-shaped magnet unit 120-1 and 120-2 is to 115 surface of steering column
Frictional force increases, and so as to reduce the angular speed of steering column 115, finally reduces the steering angle of steering column 115.
In conclusion disclosure vehicle rollover in order to prevent, devise prevents what cart from turning on one's side based on monolithic processor controlled
Turn to limits device.Based on operational research and movement physics principle, analyze cart and turned in various degree in emergency
When loss analysis, construct the cart trip model based on speed, and propose according to physical model and based on microcontroller
The device that the limitation of control turns to.Generally, by control circuit curent change, the magnetic size of electromagnetic coil is controlled, into
And the size of the electromagnetic force between electromagnet and permanent magnet is controlled, and go out required to cause friction according to physical model calculating
The external force size of power, at the same time by the value of feedback of pressure sensor with the required pressure value drawn according to physical model calculating
Carry out size comparison so that the value of feedback that microcontroller receives hinders the rotation of steering wheel shaft with frictional force.As a result, rationally effectively
Reduce the generation for even avoiding cart rollover phenomenon in ground.
Above-mentioned specific embodiment does not form the limitation to disclosure protection domain.Those skilled in the art should be bright
It is white, depending on design requirement and other factors, various modifications, combination, sub-portfolio and replacement can occur.It is any
Modifications, equivalent substitutions and improvements made within the spirit and principle of the disclosure etc., should be included in disclosure protection domain
Within.
Claims (4)
1. a kind of steering limits device of anti-cart rollover, including：
Cylindrical shell, steering column for vehicle pass through；
Paired arc-shaped magnet unit is arranged in the cylindrical shell and surrounds the steering column and pass through Flexible element and divides each other
From not in contact with the steering column, the arc magnet unit is towards being provided with friction material on the inside of steering column；
Electromagnetic Control unit is arranged on the outside of the paired arc-shaped magnet unit, utilizes the electromagnetism generated in the energized state
Field promotes the paired arc-shaped magnet unit relative motion so that friction material rubs with the steering column outer wall thereon
Wipe contact；
Angular-rate sensor, for detecting the rotational angular velocity of steering column；And
Command unit is limited, compares detected angular speed and based on the angular speed threshold value corresponding to Vehicle Speed, and
When the angular speed detected is more than the angular speed threshold value, the finger for driving paired arc-shaped magnet unit is sent to Electromagnetic Control unit
Order.
2. the steering limits device of anti-cart rollover according to claim 1, wherein the limitation command unit is based on vehicle
Current driving speed and the angular speed calculating detected are supplied to the exciting current value of the Electromagnetic Control unit, and this is encouraged
Magnetoelectricity flow valuve is included in sent instruction.
3. the steering limits device of anti-cart rollover according to claim 1, pressure sensor is further included, described in sensing
Contact between arc magnet unit inner surface and steering column outer wall, wherein the limitation command unit pressure
The pressure that sensor is sensed and the pressure threshold corresponding to the angular speed threshold value, and it is less than the angle in the pressure sensed
During pressure threshold corresponding to threshold speed, the exciting current value of the Electromagnetic Control unit is supplied to, until the pressure
Until the pressure that force snesor is sensed is equal to the pressure threshold.
4. the steering limits device of anti-cart rollover according to claim 3, further includes data updating unit, by institute
The exciting current value of raising corresponds to the angular speed threshold value and pressure threshold is stored in threshold value storage unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721432953.0U CN207450017U (en) | 2017-11-01 | 2017-11-01 | The steering limits device of anti-cart rollover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721432953.0U CN207450017U (en) | 2017-11-01 | 2017-11-01 | The steering limits device of anti-cart rollover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207450017U true CN207450017U (en) | 2018-06-05 |
Family
ID=62253043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721432953.0U Expired - Fee Related CN207450017U (en) | 2017-11-01 | 2017-11-01 | The steering limits device of anti-cart rollover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207450017U (en) |
-
2017
- 2017-11-01 CN CN201721432953.0U patent/CN207450017U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20181101 |