CN213441935U

CN213441935U - Wheel lift indicating device, wheel assembly and vehicle

Info

Publication number: CN213441935U
Application number: CN202022103226.8U
Authority: CN
Inventors: 郎锡泽
Original assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Current assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-06-15
Anticipated expiration: 2030-09-23

Abstract

The application provides a wheel lift indicating device, a wheel assembly and a vehicle. The wheel lift indicating device includes: a body; a mounting portion removably attaching the body to the wheel; a measuring rod comprising a first end and a second end, the first end being attached to the body by a compressed spring and the second end being positioned in contact with the ground; an alarm comprising a first part fixed relative to the body and a second part fixed relative to the measuring stick, the alarm being configured to sound an alarm when the first part and the second part are at the same height, and the second part being configured to be located at a higher position than the first part when the wheel is in contact with the ground. The wheel liftoff indicating device, the wheel assembly and the vehicle have the advantages of being simple in structure, easy to manufacture, convenient to use and the like, and can provide accurate and rapid indication of the wheel liftoff.

Description

Wheel lift indicating device, wheel assembly and vehicle

Technical Field

The application relates to the field of vehicle testing devices. More particularly, the present application relates to a wheel lift indicating device which is intended to provide an accurate and quick wheel lift indicating signal. The application also relates to a wheel assembly comprising the wheel lift off indicating device. The present application also relates to a vehicle comprising the above wheel lift indicating device or the above wheel assembly.

Background

Vehicle rollover stability is one of the important safety requirements that vehicle designs need to meet. The verification of the rollover stability performance is completed through a rollover stability test. The rollover stability test specification takes the lateral acceleration of the vehicle when a single-side wheel of the vehicle leaves the ground in a rollover experiment as a criterion for reaching a rollover critical value and measures the value. Meanwhile, in order to ensure the safety of the experimental driver, after the single-side wheel of the vehicle is detected to leave the ground, the vehicle speed should be reduced immediately to be away from the critical rollover dangerous state.

One method of sensing the wheel off-ground state is to install a camera beside the wheel and display a real-time image on a display in front of the driver. Further, CN102248874A discloses a stability enhancement system and method. Specifically, dynamic condition signals are first obtained from vehicle sensors and then used by a processor to calculate dynamic conditions to determine whether a wheel lift event is about to occur.

SUMMERY OF THE UTILITY MODEL

It is an object of one aspect of the present application to provide a wheel lift indicating device that is intended to issue a signal indicating wheel lift. It is an object of another aspect of the present application to provide a wheel assembly including the above wheel lift indicating device. It is an object of another aspect of the present application to provide a vehicle including the above wheel lift indicating device or the above wheel assembly.

The purpose of the application is achieved through the following technical scheme.

A wheel lift indicating device comprising:

a body;

a mounting portion removably attaching the body to the wheel;

a measuring rod comprising a first end and a second end, the first end being attached to the body by a compressed spring and the second end being positioned in contact with the ground;

an alarm comprising a first part fixed relative to the body and a second part fixed relative to the measuring stick, the alarm being configured to sound an alarm when the first part and the second part are at the same height, and the second part being configured to be located at a higher position than the first part when the wheel is in contact with the ground.

In the above wheel lift indicating device, optionally, the mounting portion includes a mounting bracket attached to a mounting bolt of the wheel by a fastening bolt, the fastening bolt includes an opening at one end and a threaded portion at the other end, the opening is sized to mate with the mounting bolt of the wheel, and the opening is reinforced by a fastening nut, and the threaded portion is sized to mate with the mounting bracket.

In the above wheel lift indicating device, optionally, the mounting bracket is attached to the body by a bearing, and the center of gravity of the body is configured to be located at a lower end of the body.

In the above wheel lift indicating device, optionally, a spring is provided between the first end of the measuring rod and an adjusting bolt movably attached to a threaded portion in the body, and the second end includes a grounding head formed of an elastic material.

In the above wheel lift indicator, optionally, the first part comprises a trigger switch and the second part comprises a trigger ring, the alarm emitting one of the following signals: acoustic signals, optical signals, electrical signals, mechanical motion, or a combination thereof.

In the above wheel lift indicating device, optionally, the trigger ring is sleeved on a measuring rod, the measuring rod extends through the trigger switch and is movable relative to the trigger switch, and the length of the trigger ring is greater than that of the trigger switch.

In the above wheel lift indicator, optionally, the trigger ring is positioned at a first height above the trigger switch when the wheel is in contact with the ground.

In the above wheel lift indicating device, optionally, the first height is determined by a difference between a dead radius and a free radius of the wheel, and the first height is 15-25 mm.

A wheel assembly comprises the wheel lift indicating device.

A vehicle comprising the above wheel lift indicating device, or comprising the above wheel assembly.

Drawings

The present application will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are intended to be conceptual in nature or configuration of the described objects and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a perspective view of one embodiment of a wheel assembly according to the present application.

Fig. 2 is a perspective view of one embodiment of a wheel lift indicator apparatus according to the present application.

Fig. 3 is a schematic structural diagram of the embodiment shown in fig. 2.

Detailed Description

Hereinafter, preferred embodiments of the present application will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the descriptions are illustrative only, exemplary, and should not be construed as limiting the scope of the application.

First, it should be noted that the terms top, bottom, upward, downward, and the like as used herein are defined with respect to the orientation in the drawings. They are relative concepts and can therefore vary with the location and state of use of the feature. Therefore, these directional terms should not be construed as limiting terms.

Furthermore, it should be further noted that any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the figures, can still be combined between these technical features (or their equivalents) to obtain other embodiments of the present application not directly mentioned herein.

It should be noted that in different drawings, the same reference numerals indicate the same or substantially the same components.

FIG. 1 is a perspective view of one embodiment of a wheel assembly according to the present application. The wheel 10 includes components such as a hub, spokes and tire. The hub is provided with a plurality of mounting bolts 11. For example, in one embodiment, five mounting bolts 11 may be provided on the hub evenly around the axis of rotation of the wheel. A wheel lift indication device 100 according to an embodiment of the present application is also included in the wheel assembly. As shown, the wheel lift indicating device 100 is installed at the side of the wheel 10 by a mounting bolt 11.

Fig. 2 is a perspective view of an embodiment of the wheel lift indicating apparatus according to the present application, and fig. 3 is a structural schematic diagram of the embodiment shown in fig. 2. As shown, the wheel lift indicating apparatus 100 according to an embodiment of the present application includes: the body 110, the mounting portion, the measuring rod 130, the alarm 140 and the like.

The body 110 may be configured in a generally disk-like structure, and a threaded hole is provided on the body 110. One side of the body 110 is removably attached to the wheel 10 by a mounting portion. The measuring rod 130 may extend through the body 110, and the alarm 140 is provided in the body 110. In one embodiment, the body 110 is configured such that its center of gravity is located near the lower end of the body 110.

The mounting portion includes a mounting bracket 120, a plurality of fastening bolts 150, and a bearing 160. The fastening bolt 150 has one end attached to the mounting bolt 11 on the wheel and the other end attached to the mounting bracket 120. The body 110 is coupled with the mounting bracket 120 by a bearing 160. The location of the center of gravity and the placement of the bearing 160 is such that the body 110 may remain substantially non-rotating as the wheel 10 rotates. In the illustrated embodiment, three fastening bolts 150 connect the mounting bracket 120 to the mounting bolts 111. More or fewer fastening bolts may be provided, and the structure of the mounting bracket 120 may be changed accordingly, according to actual needs.

Five mounting bolts 11 are schematically shown in fig. 2. It will be readily appreciated that these mounting bolts 11 are actually fixed to the hub of the wheel 10. The right side of fig. 2 schematically shows the structure of the fastening bolt 150. As shown, the fastening bolt 150 includes an opening 151 at one end and a threaded portion 152 at the other end. The opening 151 is sized to mate with the mounting bolt 11 of the wheel, while the threaded portion 152 is sized to mate with the mounting bracket. The fastening nut 153 is movably sleeved between the opening 151 and the threaded portion 152. Tightening the tightening nut 153 securely attaches the tightening bolt 150 to the wheel 10.

The measuring rod 130 comprises a first end 131 and a second end 132. For the sake of clarity, a portion of the measuring rod 130 in fig. 3 is omitted. The first end 131 is attached to the body 110 by the compressed spring 112, and the second end 132 extends out of the body 110 and is positioned in contact with the ground 20. More specifically, one end of the spring 112 is attached to the first end 131, and the other end of the spring 112 is attached to the adjustment bolt 111. The adjusting bolt 111 is installed in a threaded portion in the body 110, and is movable relative to the threaded portion. By turning the adjusting bolt 111, it is possible to adjust the elastic force of the spring 112, thereby changing the position of the measuring rod 130. The compression of spring 112 maintains second end 132 of measurement wand 130 in contact with ground 20 at all times. In one embodiment, second end 132 includes a ground tab formed from a resilient material. For example, the second end 132 may be made of a wear resistant low durometer rubber.

In one embodiment, the measuring rod 130 may be disposed in a through hole passing through the body 110, and a threaded portion is disposed at the top of the through hole in order to install the adjusting bolt 111. As shown in fig. 2, the adjustment bolt 111 may protrude from the body 110.

A first part of the alarm 140 fixed relative to the body 110 and a second part fixed relative to the measuring rod 130. The alarm 140 is configured to give an alarm when the first portion is at the same height as the second portion, and the second portion is configured to be located at a higher position than the first portion when the wheel 10 is in contact with the ground 20. The alarm 140 may send one of the following signals: acoustic signals, optical signals, electrical signals, mechanical motion, or a combination thereof. In one embodiment, the alarm 140 includes a buzzer 141 to signal an alarm.

As shown in fig. 3, the first portion includes a trigger switch 142 and the second portion includes a trigger ring 143. The trigger ring 143 may be sleeved on the measurement rod 130, and the measurement rod 130 extends through the trigger switch 142 and is movable relative to the trigger switch 142. To provide a certain robustness and fault tolerance, the length of the trigger ring 143 in the vertical direction may be greater than the length of the trigger switch 142 in the vertical direction. In one embodiment, the trigger ring 143 may be made of metal, and whether the trigger ring 143 is in contact with the trigger switch 142 is determined by sensing resistance, potential difference, or current.

Further, the trigger ring 143 may be positioned at a first height a above the trigger switch 142 when the wheel 10 is in contact with the ground 20. The first height a may be determined by the difference between the static load radius and the free radius of the wheel 10. In one embodiment, the first height is 15-25 mm. In another embodiment, the first height is 20 mm.

In the test, when the vehicle is running normally, the trigger ring 143 is kept separated from the trigger switch 142, and therefore, the alarm 140 does not issue an alarm. When the wheel 10 tends to move upwards and out of contact with the ground 20, the measuring rod 130 remains stationary relative to the ground 20 under the force of the compressed spring 112, while the wheel 10, together with the body 110 and the trigger switch 142, tends to move upwards. When the trigger switch 142 is moved upward to coincide with the trigger ring 143 or upward beyond the trigger ring 143, it is determined that a wheel lift-off condition has occurred, and the alarm 140 issues an alarm. The driver can determine that the wheels have lifted off the ground based on the warning. In order to ensure that the measuring rod 130 remains stationary relative to the ground 20 even in the case of a wheel 10 leaving the ground 20, the degree of compression of the spring 112 can be suitably selected so as to keep the spring 112 in a compressed state also in the case of maximum lift of the wheel.

The present application also relates to a wheel assembly comprising the above-described wheel lift indicating device 100. The present application also relates to a vehicle comprising the above-described wheel lift indicating apparatus 100, or comprising the above-described wheel assembly.

The wheel liftoff indicating device, the wheel assembly and the vehicle have the advantages of being simple in structure, easy to manufacture, convenient to use and the like, and can provide accurate and rapid indication of the wheel liftoff.

This written description discloses the application with reference to the drawings, and also enables one skilled in the art to practice the application, including making and using any devices or systems, selecting appropriate materials, and using any incorporated methods. The scope of the present application is defined by the claims and encompasses other examples that occur to those skilled in the art. Such other examples are to be considered within the scope of protection defined by the claims of this application, provided that they include structural elements that do not differ from the literal language of the claims, or that they include equivalent structural elements with insubstantial differences from the literal language of the claims.

Claims

1. A wheel lift indicating device, comprising:

a body;

a mounting portion removably attaching the body to a wheel;

an alarm comprising a first portion fixed relative to the body and a second portion fixed relative to the measuring stick, the alarm configured to sound an alarm when the first portion and the second portion are at the same height, and the second portion configured to be located at a higher position than the first portion when a wheel is in contact with the ground.

2. A wheelie indicating device as claimed in claim 1, wherein the mounting portion comprises a mounting bracket attached to a mounting bolt of the wheel by a fastening bolt, the fastening bolt comprising an opening at one end sized to mate with the mounting bolt of the wheel and a threaded portion at the other end, the opening being reinforced by a fastening nut, and the threaded portion being sized to mate with the mounting bracket.

3. A wheellift indicator apparatus as claimed in claim 2, wherein the mounting bracket is attached to the body by a bearing and the centre of gravity of the body is configured to be located at a lower end of the body.

4. A wheellift indicating device as claimed in claim 1 wherein the spring is provided between the first end of the measuring rod and an adjustment bolt movably mounted to a threaded portion in the body and the second end includes a ground joint formed of an elastomeric material.

5. A wheellift indicator according to claim 1 wherein the first part includes a trigger switch and the second part includes a trigger ring, the alarm emitting one of: acoustic signals, optical signals, electrical signals, mechanical motion, or a combination thereof.

6. The wheellift indicating device of claim 5, wherein the trigger ring is sleeved on the measuring rod, the measuring rod extends through and is movable relative to the trigger switch, and the length of the trigger ring is greater than the length of the trigger switch.

7. A wheellift indicator according to claim 6 wherein the trigger ring is positioned at a first height above the trigger switch when the wheel is in contact with the ground.

8. A wheellift indicator according to claim 7 wherein the first height is determined by the difference between the static load radius and the free radius of the wheel and the first height is 15-25 mm.

9. A wheel assembly comprising a wheel lift indicator apparatus as claimed in any one of claims 1 to 8.

10. A vehicle comprising a wheel lift indicator according to any of claims 1-8 or a wheel assembly according to claim 9.