CN203472440U - Car and tire pressure compensation device for same - Google Patents

Abstract

The utility model discloses a tire pressure compensating device for automobiles, which comprises: an air pressure detector for detecting the air pressure of the tires in the wheels of the automobile; Inflate the tires; the controller is connected to the air pressure detector, and the controller is used to send a prompt message to the driver when the air pressure detector detects that the air pressure of the tire is lower than the preset air pressure threshold, and the driver controls the car according to the prompt information Enter the tire automatic inflation mode, and the cylinder starts to inflate the tire. The tire pressure compensation device for automobiles controls the tires to be automatically inflated when the air pressure of the automobile tires is lower than the set value, which solves the problem that automobile tires need to be inflated regularly, brings convenience to users and improves the convenience of vehicle control And ease of use, greatly improving the reliability of driving safety. The utility model also discloses an automobile.

Description

Automobile and tire pressure compensation device for automobile

technical field

The utility model relates to the technical field of automobiles, in particular to a tire pressure compensation device for automobiles and an automobile with the device.

Background technique

There are many types of existing automobile tires, among which, inflatable tires have an absolute advantage in the tire market because of their reliability, comfort and excellent cost performance. But existing inflatable tires need to be inflated regularly to ensure the stability of the tire pressure, otherwise if the tire pressure is too low in the way of driving, it will cause a large safety hazard to the driving of the car and endanger personal and property safety.

Utility model content

The purpose of this utility model is to solve the above-mentioned technical defects at least to a certain extent.

For this reason, an object of the present utility model is to propose a kind of tire pressure compensating device for automobile, and this tire pressure compensating device for automobile can utilize the rotation of automobile to do work to inflate tire, guarantee tire tire pressure stability, guarantee driving Safety.

Another object of the present utility model is to provide an automobile with the above-mentioned tire pressure compensation device.

In order to achieve the above object, the utility model proposes a tire pressure compensation device for automobiles on the one hand, comprising: an air pressure detector for detecting the air pressure of the tires in the wheels of the automobile; an inflation mechanism, the inflation mechanism and the The tire is connected, and the inflation mechanism includes at least one cylinder, and the cylinder inflates the tire; when the air pressure detector detects that the air pressure of the tire is lower than the preset air pressure threshold, a prompt message is sent to the driver A controller, the controller is connected with the air pressure detector, the driver of the car controls the car to enter the tire automatic inflation mode according to the prompt information, and the cylinder starts to inflate the tire.

According to the tire pressure compensation device proposed by the utility model, the air pressure of the tire is detected by the air pressure detector. When the tire pressure is lower than the preset air pressure threshold, the controller prompts the car driver to control the car to enter the tire automatic inflation mode, thereby utilizing the piston gravity of the cylinder And spring force, the tires are inflated through the rotation of the car while the car is running, ensuring stable tire pressure and driving safety. Therefore, the utility model does not need to find a special inflation device, solves the problem that automobile tires need to be inflated regularly, brings convenience to users, improves the convenience and ease of use of vehicle control, and improves the reliability of vehicle driving safety. sex.

Wherein, after the vehicle enters the tire automatic inflation mode, the vehicle speed of the vehicle remains within a preset speed range. Specifically, the preset speed range may be 57-63Km/h.

Preferably, the air cylinder includes a piston and an elastic member connected to the piston, and the piston uses the weight of the elastic member and the piston to achieve reciprocating motion to inflate the tire. Wherein, the elastic member may be a spring.

Preferably, the inflation mechanism further includes an inflation assembly, the inflation assembly is connected to the air cylinder, and the inflation assembly includes: an air outlet valve, the air outlet valve is arranged in the tire; and an air intake valve, the An intake valve is provided in the cylinder.

Further, the tire pressure compensation device further includes: an air intake filter, and the air intake filter is arranged at the air intake of the air intake valve.

In order to achieve the above purpose, another aspect of the utility model also proposes an automobile, including the above-mentioned tire pressure compensation device for automobiles.

According to the automobile proposed by the utility model, the tire pressure compensation device can be used to realize the automatic inflation of automobile tires, so that there is no need to find an inflation station, which solves the problem that automobile tires need to be inflated regularly, brings convenience to users and improves the convenience of vehicle control Performance and ease of use, and improve the reliability of vehicle driving safety.

Additional aspects and advantages of the present invention will be set forth in part in the description which follows, and part will be apparent from the description which follows, or can be learned by practice of the present invention.

Description of drawings

The above-mentioned and/or additional aspects and advantages of the utility model will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is the schematic diagram of the wheel of automobile;

Fig. 2 is a schematic structural diagram of a tire pressure compensation device for automobiles according to an embodiment of the present invention;

Fig. 3 is a structural schematic diagram of an inflation mechanism used in a tire pressure compensation device for automobiles according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of the position of the cylinder in the wheel of the tire pressure compensation device for automobiles according to an embodiment of the present invention;

Fig. 5 is a schematic diagram of the force applied to the tire when the inflation mechanism in the tire pressure compensation device for automobiles inflates the tire according to a specific embodiment of the present invention; and

Fig. 6 is a schematic structural diagram of a car according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.

The following disclosure provides many different embodiments or examples for realizing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. Furthermore, the present invention may repeat reference numerals and/or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials. Additionally, configurations described below in which a first feature is "on" a second feature may include embodiments where the first and second features are formed in direct contact, and may include additional features formed between the first and second features. For example, such that the first and second features may not be in direct contact.

In the description of the present utility model, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be The internal communication between two elements may be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

These and other aspects of embodiments of the present invention will become apparent with reference to the following description and drawings. In these descriptions and drawings, some specific implementations of the embodiments of the present invention are specifically disclosed to represent some ways of implementing the principles of the embodiments of the present invention, but it should be understood that the embodiments of the present invention The range is not limited by this. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

The following describes the tire pressure compensation device for automobiles and the automobile with the tire pressure compensation device according to the embodiments of the present invention with reference to the accompanying drawings.

Firstly, let's describe the wheels of the car, wherein Fig. 1 is a schematic diagram of the wheels of the car. As shown in FIG. 1 , the wheel of a car includes a tire 20 and a hub 10 , and the hub 10 is located on the inner contour of the tire 20 for supporting the tire 20 .

Fig. 2 is a schematic structural diagram of a tire pressure compensation device for automobiles according to an embodiment of the present invention. As shown in FIG. 2 , the tire pressure compensation device for automobiles includes an air pressure detector 40 , an inflation mechanism 30 and a controller 50 . Wherein, the air pressure detector 40 is used to detect the air pressure of the tire 20 in the wheel of the automobile, and the air pressure detector 40 can include at least one pressure sensor, for example, one or more pressure sensors can be set at each wheel of the automobile to collect the air pressure of each wheel tire pressure information, or directly collect the tire pressure information transmitted by CAN bus on the car with tire pressure monitoring function. The inflation mechanism 30 is connected with the tire 20 , and, as shown in FIG. 3 or FIG. 4 , the inflation mechanism 30 includes at least one air cylinder 31 for inflating the tire 20 . Wherein, in one embodiment of the present utility model, as shown in FIG. 4 , there may be two cylinders 31 in the inflation mechanism 30 , which are arranged relative to the center of the wheel.

As shown in Figure 2, the controller 50 is connected with the air pressure detector 40, and the controller 50 is used to send a prompt message to the driver when the air pressure detector 40 detects that the air pressure of the tire 20 is lower than the preset air pressure threshold. The driver controls the automobile to enter the tire automatic inflation mode according to the prompt information, and the cylinder 31 starts to inflate the tire 20. Wherein, the controller 50 can be an ECU (Electronic Control Unit, electronic control unit), and the prompt information can be sent by the sound and light prompt terminals, and fed back to the driver, prompting the driver to control the car accordingly.

Specifically, in one embodiment of the present invention, after the vehicle enters the tire automatic inflation mode, the vehicle speed of the vehicle remains within a preset speed range. Wherein, the preset speed range may be 57-63Km/h.

As shown in FIG. 3 , the air cylinder 31 includes a piston 312 and an elastic member 311 connected to the piston 312 . The piston 312 uses the weight of the elastic member 311 and the piston 312 to realize reciprocating motion to inflate the tire 20 . Wherein, the elastic member 311 may be a spring.

Further, as shown in FIG. 3 , the inflation mechanism 30 also includes an inflation assembly 32 , which is connected to the cylinder 31 , wherein the inflation assembly 32 includes an air outlet valve 322 and an inlet valve 321 , and the air outlet valve 322 is arranged in the tire 20 , the intake valve 321 is provided in the cylinder 31 .

Preferably, in one embodiment of the present utility model, as shown in FIG. 3 , the tire pressure compensation device further includes an air intake filter 33 , and the air intake filter 33 is arranged at the air inlet of the air intake valve 321 for Filter out impurities in the gas during inflation.

In an embodiment of the present invention, when the air pressure detector 40 such as a pressure sensor detects that the tire pressure of the tire 20 is lower than the preset air pressure threshold, the ECU will send a prompt message to the driver of the car through the sound and/or light prompt terminal, The car driver judges the current road conditions. If the current road conditions are good, he will control the car to enter the tire automatic inflation mode, such as controlling the car to enter the cruise mode, and keep the speed of the car at a certain speed, such as 57-63Km/ In the h range, the cylinder 31 starts to work, and the piston 312 performs work through reciprocating motion to inflate the tire 20 . When the tire pressure meets the set value and is full, the ECU will send a prompt message to the driver, and the driver can control the car to leave the inflation state and drive freely. Therefore, the tire pressure compensating device of the embodiment of the utility model can satisfy the situation of insufficient tire pressure, without the need to find a special inflation device, and can automatically inflate the tire while the car is running, thereby ensuring the stability of the tire pressure and improving the performance of the vehicle. The convenience and ease of use of the control, and the reliability of the driving safety of the vehicle are improved.

Fig. 5 is a schematic diagram of the force exerted by the inflation mechanism used in the tire pressure compensation device for automobiles when the tire is inflated according to a specific embodiment of the present invention. As shown in FIG. 5 , the inflatable mechanism 30 bears different forces at different positions. Here, two typical positions are taken for analysis.

Usually, the normal range of the tire pressure of a car is 2.3-2.7kg/cm ² , and the common unit is 0.23-0.27MPa. Among them, if the tire pressure of the front and rear wheels is subdivided, the front wheel is 2.3-2.5kg/cm ² , and the rear wheel is 2.5-2.7kg/cm ² . And, taking a certain model of car as an example, the tire specification is 195/60/R15 88H. After conversion, it can be seen that the tire diameter is 615mm, and the wheel hub diameter is 381mm.

When the inflation mechanism inflates the tires and the speed of the car is kept within the preset speed range, such as 57-63Km/h, it can be calculated that the corresponding physical speed unit is 15.83-17.5m/s, and the physical angular speed unit is 51.49-56.91 rad/s, the corresponding speed is 7.65-8.45 circles/second.

Take the weight of the piston, that is, the mover, as 0.5kg, then its maximum gravity is 4.9N. In this way, the corresponding centrifugal force can be calculated according to the minimum working hub radius and the maximum working hub radius.

If the minimum working hub radius is 173mm, at the minimum speed, the corresponding centrifugal force is: F=0.5kg x 51.49rad/s x 51.49rad/s x 0.173m=232N, and at the maximum speed, the corresponding centrifugal force is F=0.5 kg x 56.91rad/s x 56.91rad/s x 0.173m=276N.

If the maximum working hub radius is 173+35-10=198mm, at the minimum speed, the corresponding centrifugal force is: F=0.5kg x 51.49rad/s x 51.49rad/s x 0.198m=275N, at the maximum speed, the corresponding The centrifugal force is F=0.5kg x 56.91rad/s x 56.91rad/s x 0.198m=325N. Among them, the outer diameter of the low flange of the hub is 35mm, and the center of gravity of the piston mover is 10mm.

It can be seen from Fig. 5 that when the speed of the car is kept in the range of 57-63Km/h, as long as the spring support force is between 280N-320N, the reciprocating movement of the piston can be realized and the tires of the car can be inflated. Among them, 276N is smaller than 280N, and 320N is smaller than 325N.

According to the tire pressure compensation device proposed by the embodiment of the utility model, the air pressure of the tire is detected by the air pressure detector. The weight of the piston and the force of the spring inflate the tires through the rotation of the car while the car is running, ensuring stable tire pressure and driving safety. Therefore, the utility model does not need to find a special inflation device, does not need to add a complicated power mechanism, solves the problem that automobile tires need to be inflated regularly, brings convenience to users, and improves the convenience and ease of use of vehicle control, and Improve the reliability of vehicle driving safety.

Fig. 6 is a schematic structural diagram of a car according to an embodiment of the present invention. As shown in FIG. 6, the automobile 601 includes the tire pressure compensation device 602 for automobiles as described above.

According to the automobile proposed by the embodiment of the utility model, the tire pressure compensation device can be used to automatically inflate the tires of the automobile without adding a complicated power mechanism, which solves the problem that automobile tires need to be inflated regularly, and does not need to find an inflation station, bringing users While being convenient, it improves the convenience and ease of use of the vehicle, and greatly improves the reliability of the vehicle's driving safety.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (8)

1. A tire pressure compensation device for automobiles, characterized in that it comprises: Air pressure detectors for detecting the air pressure of tires in the wheels of automobiles; an inflation mechanism, the inflation mechanism is connected to the tire, the inflation mechanism includes at least one air cylinder, and the air cylinder inflates the tire; When the air pressure detector detects that the air pressure of the tire is lower than the preset air pressure threshold, the controller is used to send prompt information to the driver of the car, the controller is connected with the air pressure detector, and the driver of the car according to the preset air pressure threshold The prompt information controls the automobile to enter the tire automatic inflation mode, and the cylinder starts to inflate the tire. 2. The tire pressure compensation device according to claim 1, characterized in that, after the vehicle enters the tire automatic inflation mode, the vehicle speed of the vehicle remains within a preset speed range. 3. The tire pressure compensation device according to claim 2, wherein the preset speed range is 57-63Km/h. 4. The tire pressure compensation device according to claim 1, wherein the cylinder includes a piston and an elastic member connected to the piston, and the piston uses the weight of the elastic member and the piston to realize reciprocating motion to The tire is inflated with air. 5. The tire pressure compensation device according to claim 4, wherein the elastic member is a spring. 6. The tire pressure compensation device according to claim 1, wherein the inflation mechanism further comprises an inflation component connected to the cylinder, the inflation component comprising: an air outlet valve disposed in the tire; and an intake valve, the intake valve is disposed in the cylinder. 7. The tire pressure compensation device according to claim 6, further comprising: An air intake filter, the air intake filter is arranged at the air intake of the air intake valve. 8. An automobile, characterized by comprising the tire pressure compensation device for automobiles according to any one of claims 1-7.

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