Tire pressure adjusting device

Abstract

The utility model relates to a tire pressure adjusting device which is characterized by comprising a control module, an inflation module and a deflation module, the control module is in control connection with the inflation module and the deflation module, and the control module is used for comparing tire pressure with preset pressure and sending signals to the inflation module and the deflation module; the inflation module is connected with the tire and inflates the tire according to the signal so as to ensure that the tire pressure is within a preset pressure range; and the air leakage module is connected with the tire and is used for performing air leakage on the tire according to the signal so as to ensure that the tire air pressure is within a preset air pressure range. The tire pressure adjusting device has the advantages that the tire pressure is ensured to be within a preset pressure range, the tire pressure can be automatically adjusted without manual adjustment, time and labor are saved, the continuity and safety of driving are ensured, the air pressure value of the tire of the new energy automobile is integrally stabilized, and the new energy automobile is more energy-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of tire air pressure, in particular to a tire air pressure regulating device. Background Art

[0002] As environmental problems become increasingly severe, new energy vehicles have developed rapidly, and they are welcomed by the market for their lower carbon emissions and higher energy efficiency. As an important part of a car, the performance of tires directly affects the driving safety, stability and energy efficiency of the car. Tire pressure is one of the key factors to ensure the normal function of tires. Improper air pressure will cause abnormal wear of tires, reduce the fuel efficiency of the car, and even cause traffic accidents.

[0003] Currently, most new energy vehicles on the market are equipped with tire pressure monitoring systems, which can monitor tire pressure in real time and alarm for abnormal pressure, but most systems are limited to monitoring and warning, and cannot actively adjust tire pressure to an ideal state. Although there are some solutions that can manually adjust the air pressure, these solutions usually require the vehicle to be parked and the driver to operate manually, which not only increases the burden on the driver, but also affects the continuity and safety of driving. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a tire pressure regulating device which can automatically adjust the tire pressure to within a preset range in view of the above-mentioned existing technical status.

[0005] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a tire pressure regulating device, characterized in that: it includes a control module, an inflation module and a deflation module, the control module controls the connection between the inflation module and the deflation module, the control module is used to compare the tire pressure with the preset pressure, and send signals to the inflation module and the deflation module; the inflation module is connected to the tire and inflates the tire according to the signal to ensure that the tire pressure is within the preset pressure range; the deflation module is connected to the tire and deflates the tire according to the signal to ensure that the tire pressure is within the preset pressure range.

[0006] In order to enable the control module to compare the tire pressure with the preset pressure and send signals to the inflation module and the deflation module, the control module includes a preset module for preset pressure, a pressure sensor for detecting the tire pressure, and a microprocessor for comparing the tire pressure with the preset pressure and sending signals.

[0007] In order to enable the inflation module to inflate the tire according to the signal, the inflation module includes a DC motor and a first circuit for controlling the connection with the DC motor. The first circuit receives the signal sent by the microprocessor and controls whether the DC motor inflates the tire.

[0008] In order to enable the deflation module to deflate the tire according to the signal, the deflation module includes a valve power supply and a second circuit connected to the valve power supply, and the second circuit receives the signal sent by the microprocessor and controls whether the valve power supply deflates the tire.

[0009] In order to enable the first circuit and the second circuit to respectively control whether the DC motor and the valve power supply are working after receiving the signal, the signal sent by the microprocessor is a high level signal or a low level signal.

[0010] In order to enable the user to switch the desired working mode, a mode conversion module is also included. The mode conversion module is controlled and connected to the control module so that the device has two states. When the mode conversion module is switched to the first state, the inflation module works and the deflation module has no response; when the mode conversion module is switched to the second state, the inflation module and the deflation module work respectively according to the corresponding signals.

[0011] In order to protect the tire, it also includes a DC power supply for providing electrical energy to the tire and a third circuit for controlling the connection to the DC power supply. The third circuit is controlled and connected to the control module. The third circuit is used to detect whether the tire power supply, voltage or power is lower than a preset level. When the detection result of the third circuit is lower than the preset level, the third circuit controls the DC power supply to be disconnected.

[0012] In order to facilitate the user to see the preset air pressure value, a display module for displaying the preset air pressure is also included, and the control module controls the connection to the display module.

[0013] In order to facilitate the comparison by the control module, a storage module for storing the preset air pressure is also included. The control module controls the connection to the storage module and calls the stored preset air pressure for comparison.

[0014] In order to determine whether the decrease in tire pressure is caused by temperature change or air leakage, a temperature sensor for detecting the tire temperature is also included, and the temperature sensor is control-connected to the control module.

[0015] Compared with the prior art, the advantages of the utility model are: the control module in the tire pressure regulating device is used to compare the tire pressure with the preset pressure, and send signals to the inflation module and the deflation module, the inflation module is connected to the tire and inflates the tire according to the corresponding signal, and the deflation module is connected to the tire and deflates the tire according to the corresponding signal, so that the tire pressure can be ensured to be within the preset pressure range, and can be adjusted automatically without manual adjustment, saving time and effort, ensuring the continuity and safety of driving, and overall stabilizing the air pressure value of the tires of new energy vehicles, making new energy vehicles more energy-efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a tire pressure regulating device in an embodiment of the utility model. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] like Figure 1 As shown, a tire pressure regulating device of this embodiment includes a control module 1, an inflation module 2, a deflation module 3, a mode conversion module 4, a DC power supply 5, a third circuit 6, a display module 7, a storage module 8 and a temperature sensor 9.

[0019] The control connection relationship of the above modules is as follows: the control module 1 is controlled and connected to the inflation module 2, the deflation module 3, the display module 7 and the storage module 8. The mode conversion module 4, the third circuit 6 and the temperature sensor 9 are controlled and connected to the control module 1.

[0020] The control module 1 includes a preset module 11 for preset air pressure, a pressure sensor 12 for detecting tire air pressure, and a microprocessor 13 for comparing the tire air pressure with the preset air pressure and sending a signal. The signal sent by the microprocessor 13 is a high level signal or a low level signal. The preset module 11 includes a pressure unit setting key for setting the pressure unit and a pressure size setting key for setting the preset air pressure. According to the provisions and requirements of the national standard GBT2978-2008, the pressure range of standard tires is 2.4-2.5BAR, and the pressure range of enhanced tires is 2.8-2.9BAR.

[0021] The inflation module 2 is connected to the tire, and includes a DC motor 21 and a first circuit 22 for controlling the DC motor 21. The first circuit 22 receives a signal sent by the microprocessor 13 and controls the DC motor 21 to inflate the tire according to the signal to ensure that the tire pressure is within a preset pressure range.

[0022] The deflation module 3 is connected to the tire, and includes a valve power supply 31 and a second circuit 32 connected to the valve power supply 31. The second circuit 32 receives a signal sent by the microprocessor 13 and controls the valve power supply 31 to deflate the tire according to the signal to ensure that the tire pressure is within a preset pressure range.

[0023] In this embodiment, the mode conversion module 4 enables the device to have two states. When the mode conversion module 4 switches to the first state, the inflation module 2 works and the deflation module 3 has no response; when the mode conversion module 4 switches to the second state, the inflation module 2 and the deflation module 3 work respectively according to the corresponding signals.

[0024] Specifically, the mode conversion module 4 includes a function switch key and a start key. The function switch key can be switched to a first state or a second state; when the start key is activated, a switch signal is sent to the microprocessor 13, and after receiving the signal, the microprocessor 13 compares the tire pressure with the preset pressure.

[0025] The DC power supply 5 is used to provide electrical energy to the tire, and the third circuit 6 controls the connection of the DC power supply 5. The third circuit 6 is used to detect whether the tire power supply, voltage or power is lower than a preset level. When the detection result of the third circuit 6 is lower than the preset level, the third circuit 6 controls the DC power supply 5 to be disconnected to protect the tire.

[0026] In addition, the display module 7 includes a display screen for displaying the preset air pressure; the storage module 8 includes a memory for storing the preset air pressure and the unit, and the control module 1 calls the preset air pressure stored in the storage module 8 for comparison. Of course, the display screen and the memory can each have two, corresponding to the first state and the second state respectively.

[0027] The temperature sensor 9 is used to detect the tire temperature and can determine whether the tire pressure drop is caused by temperature change or leakage. If it is caused by temperature change, the control module 1 sends a signal to the deflation module 3; if it is caused by leakage, it is necessary to arrange maintenance personnel to repair the tire.

[0028] The working principle of the utility model is as follows: the function switch key is switched to the first state, the pressure unit setting key is used to set the pressure unit, the pressure size setting key is used to set the preset air pressure range, the display screen displays the preset air pressure, the storage device stores the set pressure unit and the preset air pressure range, the start key is started and sends a switch signal to the microprocessor 13, after the microprocessor 13 receives the signal, the tire pressure detected by the pressure sensor 12 is compared with the preset air pressure range stored in the storage device, if the tire pressure is less than the preset air pressure range, the microprocessor 13 outputs a high level signal to the first circuit 22, the first circuit 22 controls the DC motor 21 to work to inflate the tire, when the air pressure reaches the preset range, the microprocessor 13 outputs a low level signal to the first circuit 22, the first circuit 22 controls the DC motor 21 to stop inflating;

[0029] Switch the function switch key to the second state. Part of the working principle in this state is the same as that in the first state. The difference is that when the external temperature changes, the tire pressure also changes, that is, when the temperature rises, the tire pressure also rises; according to the information collected by the temperature sensor 9, when the tire pressure is greater than the preset pressure range due to temperature reasons, the microprocessor 1 outputs a high-level signal to the second circuit 32, and the second circuit 32 controls the valve power supply 31 to start working to deflate the tire until the tire pressure reaches the preset range, and the microprocessor 1 outputs a low-level signal to the second circuit 32, and the second circuit 32 controls the valve power supply 31 to stop deflation.

Claims

1. A tire pressure regulating device, characterized in that: The invention comprises a control module (1), an inflation module (2) and a deflation module (3); the control module (1) controls the connection between the inflation module (2) and the deflation module (3); the control module (1) is used to compare the tire pressure with a preset pressure and send a signal to the inflation module (2) and the deflation module (3); the inflation module (2) is connected to the tire and inflates the tire according to the signal to ensure that the tire pressure is within the preset pressure range; the deflation module (3) is connected to the tire and deflates the tire according to the signal to ensure that the tire pressure is within the preset pressure range.

2. The tire pressure regulating device according to claim 1, characterized in that: The control module (1) comprises a preset module (11) for preset air pressure, a pressure sensor (12) for detecting tire air pressure, and a microprocessor (13) for comparing the tire air pressure with the preset air pressure and sending a signal.

3. The tire pressure regulating device according to claim 2, characterized in that: The inflation module (2) comprises a DC motor (21) and a first circuit (22) connected to the DC motor (21), wherein the first circuit (22) receives a signal sent by a microprocessor (13) and controls whether the DC motor (21) inflates the tire.

4. The tire pressure regulating device according to claim 2, characterized in that: The deflation module (3) comprises a valve power supply (31) and a second circuit (32) connected to the valve power supply (31) for controlling the connection, wherein the second circuit (32) receives a signal sent by a microprocessor (13) and controls whether the valve power supply (31) deflates the tire.

5. The tire pressure regulating device according to claim 2, characterized in that: The signal sent by the microprocessor (13) is a high level signal or a low level signal.

6. The tire pressure regulating device according to claim 1, characterized in that: The device also comprises a mode conversion module (4), wherein the mode conversion module (4) is connected to the control module (1) so that the device has two states. When the mode conversion module (4) is switched to the first state, the inflation module (2) works and the deflation module (3) has no response. When the mode conversion module (4) is switched to the second state, the inflation module (2) and the deflation module (3) respectively work according to corresponding signals.

7. The tire pressure regulating device according to claim 1, characterized in that: The invention also comprises a DC power supply (5) for providing electric energy to the tire and a third circuit (6) for controlling the connection to the DC power supply (5). The third circuit (6) is connected to the control module (1) for controlling the connection. The third circuit (6) is used to detect whether the tire power supply, voltage or power is lower than a preset level. When the detection result of the third circuit (6) is lower than the preset level, the third circuit (6) controls the DC power supply (5) to be disconnected.

8. The tire pressure regulating device according to claim 1, characterized in that: It also includes a display module (7) for displaying the preset air pressure, and the control module (1) controls the connection to the display module (7).

9. The tire pressure regulating device according to claim 1, characterized in that: It also includes a storage module (8) for storing preset air pressure, and the control module (1) controls the connection to the storage module (8) and calls the stored preset air pressure for comparison.

10. The tire pressure regulating device according to claim 1, characterized in that: It also includes a temperature sensor (9) for detecting tire temperature, and the temperature sensor (9) is controllably connected to the control module (1).

Images