Hand-leaving detection steering wheel and vehicle

Abstract

The utility model aims at providing a hand-leaving detection steering wheel and a vehicle, the steering wheel comprises a steering wheel body and a decorating part installed on the steering wheel body, a first hand-leaving induction pad is laid on the back face of the decorating part, the first hand-leaving induction pad is connected with a hand-leaving detection controller, and the first hand-leaving induction pad is connected with the first hand-leaving detection controller. Therefore, the hand-leaving detection controller can judge whether the decorating part is touched or not according to the capacitive sensing information of the first hand-leaving sensing pad. According to the utility model, the hand-leaving detection sensitivity of the steering wheel decorating part can be improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile component design, in particular to a hands-off detection steering wheel and a vehicle. Background Art

[0002] As people's living standards improve, their expectations for cars are also increasing. They're not only concerned with exterior quality and styling, but are also increasingly seeking diverse shapes and colors for interior decoration, striving for perfection in both comfort and aesthetics. In recent years, many cars have begun installing decorative elements on their steering wheels for both aesthetic and decorative purposes. However, steering wheels with hands-off detection often suffer from insufficient sensitivity in the decorative area. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a hands-off detection steering wheel and a vehicle, so as to improve the hands-off detection sensitivity at the steering wheel decorative part.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] In a first aspect, the present invention provides a hands-off detection steering wheel, comprising a steering wheel body and a decorative piece mounted on the steering wheel body, wherein a first hands-off sensing pad is provided on the back of the decorative piece, and the first hands-off sensing pad is connected to a hands-off detection controller so that the hands-off detection controller can determine whether the decorative piece is touched based on capacitive sensing information of the first hands-off sensing pad.

[0006] Furthermore, the first hand-off sensing pad includes an insulating substrate and a sensing electrode laid on the front surface of the insulating substrate.

[0007] Furthermore, the first hand-off sensing pad further includes a shielding electrode laid on the back side of the insulating substrate.

[0008] Furthermore, the first hand-off sensing pad further includes a plastic film laid on the back side of the shielding electrode.

[0009] Furthermore, the first hand-off sensing pad is connected to the hand-off detection controller via a connecting harness;

[0010] A wire harness fixing piece for fixing the connecting wire harness is provided on the back side of the decorative piece.

[0011] Furthermore, the first hand-off sensing pad matches the shape of the back surface of the decorative element.

[0012] Furthermore, a mounting portion for mounting the decorative element on the steering wheel body is provided on the back side of the decorative element;

[0013] The first hand-off sensing pad has a gap for the mounting portion to pass through.

[0014] Furthermore, the first hand-off sensor pad is fixed to the back surface of the decorative element by bonding.

[0015] Furthermore, a covering layer is provided on the steering wheel body, and a second hand-off sensing pad is provided on the back of the covering layer. The second hand-off sensing pad is connected to the hand-off detection controller so that the hand-off detection controller can determine whether the covering layer is touched based on the capacitive sensing information of the second hand-off sensing pad.

[0016] A second aspect of the present invention provides a vehicle, wherein the vehicle includes the hands-off detection steering wheel as described above.

[0017] By adopting the above technical solution, the utility model has the following beneficial effects:

[0018] The present invention provides a first hand-off sensing pad on the back of the decorative piece. The first hand-off sensing pad is connected to a hand-off detection controller, so that the hand-off detection controller can determine whether a human hand has touched the decorative piece based on the capacitive sensing information of the first hand-off sensing pad, thereby ensuring the hand-off sensing detection function at the decorative piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a partial schematic diagram of the hands-off detection steering wheel of the present invention;

[0020] Figure 2 This is a schematic diagram of the back side of the decorative element in the present invention;

[0021] Figure 3 This is a partial enlarged view of the steering wheel body in the present invention;

[0022] Figure 4 Schematic diagram of the hierarchical structure of the first hand-off sensor pad in the present invention;

[0023] Figure 5 for Figure 1 Enlarged view of area A in the middle;

[0024] Figure 6 for Figure 1 Magnified view of area B. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0027] Example 1

[0028] This embodiment provides a hands-off detection steering wheel. Figures 1 to 3 As shown, the steering wheel includes a steering wheel body 1 and a decorative member 2 mounted on the steering wheel body 1. Specifically, the front side of the decorative member 2 is an appearance design surface, on which decorative patterns are designed to improve the appearance design of the steering wheel.

[0029] To improve the sensitivity of hand-off detection on decorative member 2, this embodiment provides a first hand-off sensor pad 3 on the back side of decorative member 2 (opposite the design surface). The first hand-off sensor pad 3 matches the shape of the back side of decorative member 2. This allows decorative member 2 to inherently acquire capacitance. The capacitive sensing information output by the first hand-off sensor pad 3 can reflect whether the driver's hand is in contact with decorative member 2. When the first hand-off sensor pad 3 is connected to a hand-off detection controller (not shown), the controller can determine whether decorative member 2 is touched based on the capacitive sensing information from the first hand-off sensor pad 3, thereby ensuring the hand-off detection function on decorative member 2.

[0030] In one embodiment, see Figure 4 As shown, the first hand-off sensing pad 3 may include an insulating substrate 31 and a sensing electrode 32 laid on the front surface of the insulating substrate 31; it may also include a shielding electrode 33 laid on the back surface of the insulating substrate 31, and the shielding electrode 33 can prevent parasitic capacitance from being generated between the sensing electrode 32 and the rim of the steering wheel to ensure the hand-off detection performance; it may also include a plastic film 34 laid on the back surface of the shielding electrode 33, and the back surface of the plastic film 34 is connected to the back surface of the decorative component 2.

[0031] The insulating substrate 31 is an insulating flexible support member. As a non-limiting example, the insulating material used for the insulating substrate 31 can be PVC, PTFE, PS, PP, PE, PC, ABS, PET, PA, PU, PUR, NBR, silicone, EPDM, and the like, optionally containing additives. Preferably, the insulating substrate 31 is made of PE. The sensing electrode 32 and the shielding electrode 33 can be in the form of conductive fabric or metal mesh, and can be made of any conductive material such as aluminum, constantan, copper, German silver, steel, Inconel, brass, CuNi2, etc. The plastic film 34 is preferably a TPU film, which is used to protect the conductive fabric of the shielding layer to prevent the shielding layer from shorting with other parts.

[0032] exist Figure 4 In the illustrated example, the sensing electrode 32 and shielding electrode 33 are bonded to the insulating substrate 31 using double-sided tape 35. It should be understood that other bonding methods may be used, or the electrodes may be sewn onto the insulating substrate 31, and this embodiment does not impose any limitations thereto. Furthermore, the plastic film 34 may also be bonded to the shielding electrode 33 or the back surface of the decorative element 2 using double-sided tape 35 or other bonding methods.

[0033] In one practicable manner, combining Figure 1 and Figure 5 As shown, the first hand-off sensing pad 3 is connected to the hand-off detection controller via a connecting harness 4, and a harness fixing part 5 for fixing the connecting harness 4 is provided on the back of the decorative component 2 to prevent the harness from shaking and facilitate installation.

[0034] Preferably, the harness fixing member 5 can be a V-shaped clamping member with a certain degree of elasticity. The connecting harness 4 can be clamped into the clamping member by gently pressing it to prevent it from shaking.

[0035] In one practicable manner, Figure 2 and Figure 3 As shown, the steering wheel body 1 is provided with a decorative component mounting groove 11 for mounting the decorative component 2. The back of the decorative component 2 is provided with a mounting portion for mounting the decorative component 2 on the steering wheel body 1. The mounting portion includes a mounting foot 21 and a clamping mechanism 22 that cooperate with the decorative component mounting groove 11. The first hand-off sensor pad 3 is formed with a notch 30 for the mounting portion to pass through (as shown in FIG. Figure 6 shown).

[0036] When installing the first hand-off sensor pad 3 in this embodiment, the first hand-off sensor pad 3 is first precisely cut according to the actual shape of the back of the decorative member 2, and a notch 30 is reserved for the mounting portion to pass through. The gap between the edge of the notch 30 and the mounting portion is maintained at approximately 5 mm. The first hand-off sensor pad 3 is then affixed to the back of the decorative member 2. The affixation must be flat, without overlap or large wrinkles, otherwise the user experience of hand-off sensing will be affected. Furthermore, the consistency of the affixed area must be ensured during assembly.

[0037] In addition, the first hand-off sensor pad 3 of this embodiment adopts a tongue-free structure design, that is, the connecting harness 4 is directly connected to the edge of the first hand-off sensor pad 3, avoiding the layout space problem caused by the inappropriate shape of the decorative part 2.

[0038] In one embodiment, the steering wheel body 1 is further provided with a covering layer 12 (typically made of leather). A second hand-off sensor pad (not shown) is provided on the back of the covering layer 12. The second hand-off sensor pad is also connected to the hand-off detection controller, so that the hand-off detection controller can determine whether the covering layer 12 is touched based on the capacitive sensing information of the second hand-off sensor pad. It should be understood that when the hand-off detection controller determines that either the decorative element 2 or the covering layer 12 is touched, it can be determined that the driver's hand is touching the steering wheel.

[0039] The structures of the second hand-off sensing pad and the first hand-off sensing pad 3 may be the same or different, and this embodiment does not impose any limitation on this.

[0040] Example 2

[0041] This embodiment provides a vehicle, including the hands-off detection steering wheel provided in Example 1. Since the vehicle of this embodiment adopts the hands-off detection steering wheel provided in Example 1, the hands-off detection sensitivity at its steering wheel decoration 2 can be improved.

[0042] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A hands-off detection steering wheel, comprising a steering wheel body and a decorative piece mounted on the steering wheel body, characterized in that: A first hand-off sensing pad is provided on the back of the decorative element. The first hand-off sensing pad is connected to a hand-off detection controller so that the hand-off detection controller can determine whether the decorative element is touched based on capacitance sensing information of the first hand-off sensing pad.

2. The hands-off detection steering wheel according to claim 1, characterized in that: The first hand-off sensing pad includes an insulating substrate and a sensing electrode laid on the front surface of the insulating substrate.

3. The hands-off detection steering wheel according to claim 2, characterized in that: The first hand-off sensing pad further includes a shielding electrode arranged on the back side of the insulating substrate.

4. The hands-off detection steering wheel according to claim 3, characterized in that: The first hand-off sensing pad further includes a plastic film laid on the back side of the shielding electrode.

5. The hands-off detection steering wheel according to claim 1, characterized in that: The first hand-off sensing pad is connected to the hand-off detection controller via a connecting harness; A wire harness fixing piece for fixing the connecting wire harness is provided on the back side of the decorative piece.

6. The hands-off detection steering wheel according to claim 1, characterized in that: The first hand-off sensing pad matches the shape of the back surface of the decorative element.

7. The hands-off detection steering wheel according to claim 6, characterized in that: The back of the decorative piece is provided with a mounting portion for mounting the decorative piece on the steering wheel body; The first hand-off sensing pad has a gap for the mounting portion to pass through.

8. The hands-off detection steering wheel according to any one of claims 1 to 7, characterized in that: The first hand-off sensing pad is fixed to the back surface of the decorative element by bonding.

9. The hands-off detection steering wheel according to any one of claims 1 to 7, characterized in that: The steering wheel body is further provided with a covering layer, and a second hand-off sensing pad is laid on the back of the covering layer. The second hand-off sensing pad is connected to the hand-off detection controller so that the hand-off detection controller can determine whether the covering layer is touched based on the capacitive sensing information of the second hand-off sensing pad.

10. A vehicle, characterized in that: The vehicle comprises the hands-off detection steering wheel according to any one of claims 1 to 9.

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