CN216232528U - Steering wheel and vehicle - Google Patents
Steering wheel and vehicle Download PDFInfo
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- CN216232528U CN216232528U CN202123040661.1U CN202123040661U CN216232528U CN 216232528 U CN216232528 U CN 216232528U CN 202123040661 U CN202123040661 U CN 202123040661U CN 216232528 U CN216232528 U CN 216232528U
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Abstract
The disclosure relates to a steering wheel and a vehicle, which are used for analyzing the use behavior of the steering wheel in the driving process of the vehicle, so that the dangerous behavior that two hands of a driver are separated from the steering wheel in the driving process is detected, and the driving safety is improved. Wherein, this steering wheel includes: the steering wheel comprises a steering wheel body, a holding and pressing structure and a detection circuit; the holding and pressing structure is arranged on the rim of the steering wheel body, corresponding resistors are formed when the holding and pressing structure is stressed, and the rim of the steering wheel body is formed into an annular structure; the detection circuit is used for detecting a resistance value formed when the holding and pressing structure is stressed, so that the grasping condition of the steering wheel by the two hands of the driver is determined according to the detected resistance value.
Description
Technical Field
The present disclosure relates to the field of vehicle technology, and in particular, to a steering wheel and a vehicle.
Background
In order to effectively improve driving safety, many advanced driving assistance systems have been widely used in automobiles. The hand-off detection of the steering wheel is one of advanced driving assistance systems and is also a requirement of an automatic driving system of an L1-L4 automobile, namely, the hand-off detection of the steering wheel is used for reminding and warning by detecting whether the hands of a driver leave the steering wheel, so that the driving safety is guaranteed.
In the related art, there are various methods for detecting the steering wheel out of hand, but the conventional detection methods have many problems, for example, the visual detection cost is high and erroneous judgment is easily caused, and the touch detection cannot detect the specific position of holding the steering wheel.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steering wheel and vehicle, according to the atress condition of holding pressure structure in the steering wheel, based on the behavior in service of corresponding resistance analysis steering wheel to detect the dangerous action that driver's both hands break away from the steering wheel in the driving process, improved the security of driving.
In order to achieve the above object, in a first aspect, the present disclosure provides a steering wheel including a steering wheel body, a grip structure, and a detection circuit;
the holding and pressing structure is arranged on the steering wheel body, and when the holding and pressing structure is stressed, a corresponding resistor is formed;
the detection circuit is used for detecting a resistance value formed when the holding and pressing structure is stressed, so that the grasping condition of the steering wheel by the two hands of the driver is determined according to the detected resistance value.
Optionally, the grip structure is a resistor grip ring, the resistor grip ring is an annular structure with a circumference equal to a preset circumference, and the preset circumference is set based on the circumference of the steering wheel; or
The resistor holding and pressing ring is of an arc structure with the radian identical to that of any section of arc on the steering wheel.
Optionally, the grip structure includes at least one flexible electrode and at least one resistive electrode, and a total length of the at least one flexible electrode is smaller than or equal to a perimeter of the steering wheel, and a total length of the at least one resistive electrode is smaller than or equal to a perimeter of the steering wheel.
Optionally, the grip structure includes a circuit interface, wherein a first circuit interface is disposed on the flexible electrode, and a second circuit interface is disposed on the resistive electrode;
the detection circuit is used for detecting the resistance between the first circuit interface and the second circuit interface when the holding and pressing structure is stressed.
Optionally, the total length of the at least one flexible electrode is the same as the total length of the at least one resistive electrode.
Optionally, the holding and pressing structure includes two flexible electrodes and two resistive electrodes, and each flexible electrode and each resistive electrode are 180-degree semicircular electrodes.
Optionally, the flexible electrode and the resistance electrode are stacked up and down, and an air gap is formed between the flexible electrode and the resistance electrode.
Optionally, the steering wheel further comprises a flexible outer sleeve, and the flexible outer sleeve is used for wrapping the holding and pressing structure inside the flexible outer sleeve.
Optionally, the steering wheel further comprises an alarm, and the alarm is used for giving an alarm to prompt the driver that the two hands are separated from the steering wheel when the resistance value exceeds a preset resistance range.
In a second aspect, the present disclosure also provides a vehicle including the steering wheel of any one of the first aspects.
Through above-mentioned technical scheme, will hold and press the structure setting on the steering wheel body, form corresponding resistance when holding and pressing the structure atress, detection circuitry is used for detecting the resistance value that forms when holding and pressing the structure atress to confirm the gripping condition of driver's both hands to the steering wheel according to the resistance value that detects, so that detect the dangerous behavior that driver's both hands break away from the steering wheel in the driving process, thereby standardize the mode that the driver held the steering wheel, improved the security of driving.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic diagram illustrating the construction of a steering wheel according to an exemplary embodiment;
FIG. 2 is a schematic diagram of a steering wheel according to another exemplary embodiment;
FIG. 3 is a schematic diagram illustrating a grip structure according to an exemplary embodiment;
FIG. 4 is a diagram illustrating a resistive grip ring force application according to an exemplary embodiment;
FIG. 5 is a schematic diagram illustrating an equivalent circuit formed when a resistor strap ring is stressed in accordance with an exemplary embodiment;
FIG. 6 is a schematic diagram of a grip structure according to another exemplary embodiment;
FIG. 7 is a schematic diagram of a steering wheel according to another exemplary embodiment;
fig. 8 is a schematic structural view illustrating a steering wheel according to another exemplary embodiment.
Description of the reference numerals
101-steering wheel body 102-holding structure
103-detection circuit 201-rim
301-flexible electrode 302-resistive electrode
303-base 401-circuit interface
701-flexible jacket 801-alarm
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a schematic structural diagram illustrating a steering wheel according to an exemplary embodiment, and referring to fig. 1, the steering wheel includes a steering wheel body 101, a grip structure 102, and a detection circuit 103;
the holding and pressing structure 102 is arranged on the rim of the steering wheel body 101, and when the holding and pressing structure 102 is stressed, a corresponding resistor is formed;
the detection circuit 103 is used for detecting a resistance value formed when the grip structure 102 is stressed, so as to determine the gripping condition of the steering wheel by the two hands of the driver according to the detected resistance value.
For example, as shown in fig. 2, the steering wheel body 101 may include a rim 201, the rim 201 indicates a ring-shaped structure held by a hand of a driver when the driver uses the steering wheel, when the grip structure 102 is stressed, a corresponding resistor is formed, resistance values formed by stress at different positions are different, the detection circuit 103 is configured to detect the resistance value formed when the grip structure 102 is stressed, and then determine specific positions of the driver's hands on the steering wheel according to the detected resistance value, so as to detect dangerous behaviors of the driver's hands being separated from the steering wheel during driving, standardize a manner of holding the steering wheel by the driver, and improve driving safety.
In an embodiment, the grip structure 102 is a resistor grip ring, the resistor grip ring is an annular structure with a circumference equal to a preset circumference, and the preset circumference is set based on the circumference of the steering wheel; or the resistance clamping ring is of an arc structure with the radian identical to that of any section of arc on the steering wheel.
It should be understood that the preset perimeter may be a perimeter based on a center point of a cross section of the steering wheel, and may also be an inner perimeter or an outer perimeter of the steering wheel. The resistance is held and is pressed the ring and can be the girth and predetermine the 360 ring structure of the unanimous 360 degrees of girth to carry out 360 degrees detections, also can be the radian and the same arc structure of arbitrary one section arc on the steering wheel, detect both hands in certain part or certain several parts of steering wheel, this open embodiment does not limit this, can select the resistance of suitable shape to hold the clamping ring in practical application.
For example, the electric resistance holding pressure ring can be one or more, and each electric resistance holding pressure ring can be arranged at different positions of the steering wheel. For example, the resistor-holding-pressing ring may be disposed at a position shown in fig. 2, or at a position below the steering wheel vertically opposite to the resistor-holding-pressing ring in fig. 2, so as to specifically detect the thumb of the other fingers except the thumb when the steering wheel is held by the hand, or may be disposed at the inner side of the steering wheel, so as to specifically detect the thumb when the steering wheel is held by the hand, or may be disposed at the outer side of the steering wheel, so as to specifically detect the palm when the steering wheel is held by the hand, or may be disposed at a plurality of positions simultaneously.
In an embodiment, the grip structure 102 includes at least one flexible electrode 301 and at least one resistive electrode 302, and a total length of the at least one flexible electrode 301 is smaller than or equal to a circumference of the steering wheel, and a total length of the at least one resistive electrode 302 is smaller than or equal to a circumference of the steering wheel.
It should be understood that the flexible electrode 301 and the resistive electrode 302 may be disposed simultaneously, one flexible electrode 301 and one resistive electrode 302 are a set of electrode pairs, one grip structure 102 at least includes one set of electrode pairs, and the total length of the flexible electrode 301 and the resistive electrode 302 in each set of electrode pairs is less than or equal to the circumference of the steering wheel. The number and specific total length of the flexible electrodes 301 and the resistive electrodes 302 are not limited in the embodiments of the present disclosure, and the flexible electrodes 301 and the resistive electrodes 302 with appropriate number and appropriate length may be selected in practical applications. Meanwhile, the materials of the flexible electrode 301 and the resistive electrode 302 are not limited in the embodiment of the present disclosure, and the materials of the flexible electrode 301 and the resistive electrode 302 may be the same or different.
In one embodiment, the flexible electrode 301 and the resistive electrode 302 are stacked one on top of the other, and an air gap is formed between the flexible electrode 301 and the resistive electrode 302.
It should be understood that when the steering wheel is held by hand and the pressure-holding structure 102 is stressed, the flexible electrode 301 and the resistive electrode 302 are in contact and form a short circuit at the stress point, so as to form a corresponding resistance value, and therefore, the flexible electrode 301 and the resistive electrode 302 may be disposed on top of each other, for example, the flexible electrode 301 and the resistive electrode 302 may be disposed in a position relationship as shown in fig. 3, the resistive electrode 302 is disposed on the base 303, the flexible electrode 301 is disposed above the resistive electrode 302, or the flexible electrode 301 is disposed on the base 303, and the resistive electrode 302 is disposed above the flexible electrode 301, which is not limited by the embodiment of the present disclosure. Meanwhile, an air gap is formed between the flexible electrode 301 and the resistive electrode 302, and the flexible electrode 301 and the resistive electrode 302 can be in contact when the grasping structure 102 is stressed, the size of the air gap between the flexible electrode 301 and the resistive electrode 302 is not limited in the embodiment of the present disclosure, the widths of the flexible electrode 301 and the resistive electrode 302 may be the same, or as shown in fig. 3, the width of the resistive electrode 302 is greater than the width of the flexible electrode 301, which is not limited in the embodiment of the present disclosure, and a suitable width can be selected in practical application.
In one embodiment, the grip structure 102 includes a circuit interface 401, wherein a first circuit interface is disposed on the flexible electrode 301 and a second circuit interface is disposed on the resistive electrode 302. Accordingly, the detection circuit 103 is used for detecting the resistance between the first circuit interface and the second circuit interface when the grip structure 102 is stressed.
Illustratively, the circuit interface 401 may be disposed on the flexible electrode 301 and the resistive electrode 302, and the detection circuit 103 is configured to detect a resistance value at the circuit interface 401, as shown in fig. 4, when the handle is held by hand and the grip structure 102 is under a force, the flexible electrode 301 and the resistive electrode 302 contact and form a short circuit at the point of the force, where an equivalent circuit of the flexible electrode 301, the resistive electrode 302, and the circuit interface 401 is as shown in fig. 5.
In one embodiment, the total length of the at least one flexible electrode 301 is the same as the total length of the at least one resistive electrode 302.
It should be understood that, in a set of electrode pairs, if the total length of the flexible electrode 301 is different from the total length of the resistive electrode 302, there is a certain section of the flexible electrode 301 and the resistive electrode 302 of the gripping structure 102 that are not disposed correspondingly, in this case, when the steering wheel is held by hand, the flexible electrode 301 and the resistive electrode 302 cannot be contacted at this section, i.e., a corresponding resistor cannot be formed, and thus the positions of both hands cannot be determined, and therefore, the total length of the flexible electrode 301 may be the same as the total length of the resistive electrode 302. However, the specific total length between the flexible electrode 301 and the resistive electrode 302 is not limited in the embodiments of the present disclosure, and the flexible electrode 301 and the resistive electrode 302 having suitable lengths may be provided in practical applications.
In one embodiment, the grip structure 102 includes two flexible electrodes 301 and two resistive electrodes 302, and each flexible electrode 301 and each resistive electrode 302 are 180-degree semicircular electrodes.
Illustratively, the grip structure 102 may include two 180-degree semicircular flexible electrodes 301 and two 180-degree semicircular resistive electrodes 302 as shown in fig. 6, thereby realizing 360-degree detection. The grip structure 102 may further include three 60-degree arc-shaped flexible electrodes 301 and three 60-degree arc-shaped resistive electrodes 302, the specific shape of the grip structure 102 is not limited in the embodiment of the disclosure, and the grip structure 102 having a suitable shape may be set in practical application according to detection requirements, the size of a steering wheel, and the like.
In one embodiment, as shown in fig. 7, the steering wheel further comprises a flexible casing 701, and the flexible casing 701 is used for wrapping the grip structure 102 inside the flexible casing 701.
It should be understood that the flexible casing 701 is made of a relatively soft and bendable material, and the grip structure 102 is enclosed inside the flexible casing 701, and the material of the flexible casing 701 is not limited by the embodiment of the disclosure, and may be selected from suitable materials in practical applications.
In another embodiment, as shown in fig. 8, the steering wheel further comprises an alarm 801, wherein the alarm 801 is used for prompting the driver to disengage the hands from the steering wheel when the resistance value exceeds the preset resistance range.
It should be understood that the alarm 801 may be an indicator light or a speaker, and the embodiment of the present disclosure does not limit the specific form of the alarm 801, and may select an appropriate alarm 801 to prompt in practical applications.
It should be further understood that a circuit interface 401 is disposed between a set of electrode pairs, i.e. a flexible electrode 301 and a resistive electrode 302, since the magnitude of the resistance value is proportional to the length of the conductor, i.e. the farther the force point is from the circuit interface 401, the larger the resistance value formed by the force point is, a safety region can be preset, then a preset resistance range of the safety region can be determined according to the positions of the two ends of the safety region from the circuit interface 401, and when the resistance value detected by the detection circuit 103 exceeds the preset resistance range, it is determined that the current hands have been detached from the steering wheel, and the safety region can be reduced, and the preset resistance range can be reduced, thereby standardizing the way of holding the steering wheel. In addition, the size of resistance is directly proportional to the radian of atress, just can judge the radian that the stress point corresponds through the detection of resistance value, as shown in fig. 6 promptly, if the stress point is in circuit interface 401 department, the resistance value is 0, the stress point is farther from circuit interface 401, the resistance that corresponds is bigger, the radian of atress is just bigger, can calculate the radian that the stress point corresponds according to the resistance value that detects, for example, can adopt the following formula of calculating to calculate the radian that the stress point corresponds:
wherein R isxFor detecting the resistance value detected by the circuit 103, RiThe resistance per unit length is a fixed value, and r is the radius of the steering wheel.
For example, as shown in fig. 6, the grip structure 102 may be provided with two circuit interfaces 401, the first area and the second area are preset as safe areas, the resistance value range of the safe area is calculated to be 5 kohms to 10 kohms, and when the resistance value detected by the detection circuit 103 is less than 5 kohms or greater than 10 kohms, the alarm 801 gives an alarm. Or, the preset radian is set to be 30-150 degrees, and when the radian calculated according to the detected resistance value is smaller than 30 degrees or larger than 150 degrees, the alarm 801 gives an alarm.
Based on the same concept, the present disclosure also provides a vehicle including any one of the steering wheels described above.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A steering wheel is characterized by comprising a steering wheel body, a holding and pressing structure and a detection circuit;
the holding and pressing structure is arranged on the rim of the steering wheel body, corresponding resistors are formed when the holding and pressing structure is stressed, and the rim of the steering wheel body is formed into an annular structure;
the detection circuit is used for detecting a resistance value formed when the holding and pressing structure is stressed, so that the grasping condition of the steering wheel by the two hands of the driver is determined according to the detected resistance value.
2. The steering wheel according to claim 1, wherein the grip structure is a resistor grip ring, the resistor grip ring is an annular structure having a circumference equal to a preset circumference, and the preset circumference is set based on the circumference of the steering wheel; or
The resistor holding and pressing ring is of an arc structure with the radian identical to that of any section of arc on the steering wheel.
3. The steering wheel according to claim 1 or 2, wherein the grip structure comprises at least one flexible electrode and at least one resistive electrode, and the at least one flexible electrode has a total length less than or equal to a circumference of the steering wheel, and the at least one resistive electrode has a total length less than or equal to a circumference of the steering wheel.
4. The steering wheel of claim 3, wherein the grip structure includes a circuit interface, wherein a first circuit interface is disposed on the flexible electrode and a second circuit interface is disposed on the resistive electrode;
the detection circuit is used for detecting the resistance between the first circuit interface and the second circuit interface when the holding and pressing structure is stressed.
5. The steering wheel of claim 3, wherein the at least one flexible electrode has a total length that is the same as a total length of the at least one resistive electrode.
6. The steering wheel of claim 3, wherein the grip structure comprises two flexible electrodes and two resistive electrodes, and each flexible electrode and each resistive electrode is a 180 degree semicircular electrode.
7. The steering wheel of claim 3, wherein the flexible electrode and the resistive electrode are stacked one on top of the other with an air gap between the flexible electrode and the resistive electrode.
8. The steering wheel according to claim 1 or 2, further comprising a flexible outer cover for enclosing the grip structure inside the flexible outer cover.
9. The steering wheel according to claim 1 or 2, further comprising an alarm for prompting a driver to disengage both hands from the steering wheel when the resistance value exceeds a preset resistance range.
10. A vehicle comprising a steering wheel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123040661.1U CN216232528U (en) | 2021-12-02 | 2021-12-02 | Steering wheel and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123040661.1U CN216232528U (en) | 2021-12-02 | 2021-12-02 | Steering wheel and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216232528U true CN216232528U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123040661.1U Active CN216232528U (en) | 2021-12-02 | 2021-12-02 | Steering wheel and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216232528U (en) |
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2021
- 2021-12-02 CN CN202123040661.1U patent/CN216232528U/en active Active
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