Air pressure monitoring system and vehicle

Abstract

The utility model discloses an air pressure monitoring system and a vehicle, and relates to the technical field of air pressure monitoring, the air pressure monitoring system is applied to the vehicle with an energy storage device, the energy storage device is used for at least one of a brake, a parking device and an assist device of the vehicle, and the air pressure monitoring system comprises a detection device, a repeater and a feedback device, the detection device is arranged on the energy storage device and comprises a sensor and an emitter electrically connected with the sensor, and the sensor is arranged on the energy storage device and can obtain the internal air pressure of the energy storage device; the repeater is used for performing wireless communication with the transmitter; the feedback device is electrically connected with the repeater and comprises a display and / or an alarm, the display is used for displaying the air pressure detected by the sensor, and the alarm is used for warning a driver. According to the technical scheme of the utility model, through arranging the transmitter and the repeater which can carry out wireless communication, wire harnesses in the air pressure monitoring system are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air pressure monitoring, in particular to an air pressure monitoring system and a vehicle. Background Art

[0002] For buses that use pneumatic brakes, the energy storage device (air reservoir) is generally divided into the front brake air reservoir, rear brake air reservoir, parking air reservoir, and auxiliary air reservoir. Because the front and rear brakes are more important for driving safety, air pressure sensors are generally installed on the front brake air reservoir and the rear brake air reservoir, and low air pressure alarm sensors are installed on the parking air reservoir and the auxiliary air reservoir. The air pressure sensor and the air pressure alarm sensor are connected to the instrument display through a low-voltage wiring harness, and the corresponding air pressure value is displayed on the display. When the air pressure value is lower than a certain value, an alarm is set to indicate that the pressure is too low.

[0003] However, these air pressure sensors and air pressure alarm sensors need to be connected to the instrument display through a low-voltage wiring harness, resulting in too many wiring harnesses for the brake pressure monitoring system, which increases the installation complexity and cost of the brake pressure monitoring system and makes troubleshooting difficult. In addition, too many wiring harnesses may be tangled together, increasing the risk of short circuits. Utility Model Content

[0004] The main purpose of the utility model is to provide an air pressure monitoring system and a vehicle, aiming to reduce the wiring harness in the air pressure monitoring system.

[0005] To achieve the above-mentioned purpose, the air pressure monitoring system proposed in the utility model is applied to a vehicle having an energy storage device, wherein the energy storage device is used for at least one of the brake, parking device, and auxiliary device of the vehicle, and the air pressure monitoring system comprises:

[0006] A detection device, provided in the energy storage device, comprising a sensor and a transmitter electrically connected to the sensor, wherein the sensor is provided in the energy storage device and is capable of obtaining the internal air pressure of the energy storage device;

[0007] a repeater for wirelessly communicating with the transmitter; and

[0008] A feedback device is electrically connected to the repeater, and the feedback device includes a display and / or an alarm. The display is used to display the air pressure detected by the sensor, and the alarm is used to warn the driver.

[0009] In one embodiment, the vehicle includes an air supply device and a brake, the air supply device drives the brake to perform a braking action through the energy storage device, the brake includes a front brake and a rear brake, the energy storage device includes a first brake energy storage device corresponding to the front brake, and a second brake energy storage device corresponding to the rear brake, and the detection device includes a first detection module correspondingly installed on the first brake energy storage device, and a second detection module correspondingly installed on the second brake energy storage device.

[0010] In one embodiment, the vehicle further includes a parking device, the energy storage device further includes a parking energy storage device corresponding to the parking device, the air supply device drives the parking device to perform a parking action through the parking energy storage device, the parking energy storage device is equipped with at least one of the detection devices, and the detection device further includes a third detection module correspondingly installed on the parking energy storage device, and the sensor of the third detection module can detect the internal air pressure of the parking energy storage device.

[0011] In one embodiment, the vehicle also includes an auxiliary device connected to the air supply device, the auxiliary device includes an air suspension and / or a door drive air pump and / or an airbag of a seat, the energy storage device also includes an auxiliary energy storage device for use by the auxiliary device, and the detection device also includes a fourth detection module correspondingly installed on the auxiliary energy storage device, and the sensor of the fourth detection module can detect the internal air pressure of the auxiliary energy storage device.

[0012] In one embodiment, the first detection module, the second detection module, the third detection module and the fourth detection module perform wireless communication with the same repeater.

[0013] In one embodiment, the repeater is mounted in the middle of the chassis of the vehicle.

[0014] In one embodiment, the feedback device further comprises a signal processor electrically connected to the alarm, and the signal processor is used to control the alarm to issue an alarm when the air pressure detected by the detection device is lower than a first preset value and / or higher than a second preset value.

[0015] In one implementation, the first preset value ranges from 0.5 MPa to 0.7 MPa.

[0016] In one implementation, the second preset value ranges from 1.0 MPa to 1.2 MPa.

[0017] In one embodiment, the vehicle also includes a brake pedal and a brake monitor, the brake monitor is used to monitor the activation of the brake pedal, the signal processor is electrically connected to the brake monitor, and is also used to control the alarm to warn when the change in air pressure detected by the detection device within a preset time exceeds a third preset value and the brake monitor does not detect the activation of the brake pedal.

[0018] In one embodiment, the repeater is electrically connected to the feedback device via a transmission harness.

[0019] In one embodiment, the sensor is configured as an air pressure sensor.

[0020] In one embodiment, the alarm includes a speaker and / or a light emitting unit.

[0021] The utility model also provides a vehicle, comprising the above-mentioned air pressure monitoring system.

[0022] The technical solution of the utility model is to set up a transmitter and a repeater capable of wireless communication, so that the air pressure information inside the energy storage device detected by the detection device can be forwarded by the repeater to the feedback device through wireless transmission, and the feedback device displays and / or warns, thereby realizing real-time monitoring of the air pressure of the energy storage device and reducing the wiring harness in the air pressure monitoring system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 A structural block diagram of an embodiment of an air pressure monitoring system provided by the utility model;

[0025] Figure 2 This is a structural block diagram of another embodiment of the air pressure monitoring system provided by the utility model.

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] The utility model provides an air pressure monitoring system.

[0031] See also Figure 1 and Figure 2 In one embodiment of the utility model, the air pressure monitoring system is applied to a vehicle with an energy storage device, and the energy storage device is used for at least one of the vehicle's brakes, parking devices, and auxiliary devices. The air pressure monitoring system includes a detection device, a repeater, and a feedback device. The detection device is arranged in the energy storage device, and includes a sensor and a transmitter electrically connected to the sensor. The sensor is arranged in the energy storage device and can obtain the internal air pressure of the energy storage device; the repeater is used for wireless communication with the transmitter; the feedback device is electrically connected to the repeater, and the feedback device includes a display and / or an alarm, the display is used to display the air pressure detected by the sensor, and the alarm is used to warn the driver.

[0032] Specifically, the air pressure monitoring system is applied to vehicles with energy storage devices, such as trucks, buses, vans, passenger cars, etc. that use air pressure brakes, especially pure electric buses. The energy storage device is used to store compressed air. Without loss of generality, the energy storage device is an air cylinder. The vehicle uses compressed air as a power source for brakes, parking devices, auxiliary devices, etc. The air pressure monitoring system is used to collect, analyze, display, and warn the air pressure of the energy storage device.

[0033] For heavy vehicles, brakes usually use compressed air as a medium to transmit braking force, which is used to slow down or stop the vehicle when it is running, and is usually operated by the driver through a foot pedal. Parking devices (also known as parking brake systems or handbrakes) are used when the vehicle is stationary to prevent the vehicle from sliding on a slope. Parking devices are usually operated by a handle or pedal, and use mechanical means to lock the rear wheels or all wheels so that they cannot rotate. Parking devices also include electronic parking brakes (EPB), which are electronically controlled parking brake systems that are more convenient to operate. Auxiliary devices are used to use compressed air to drive non-braking functions on the vehicle. For example, pneumatic doors for automatically opening and closing doors; pneumatic suspension for adjusting vehicle height, improving ride comfort or load carrying; air horns for providing warning signals with a louder volume; seats for adjusting the position of the driver or passenger seat; and other pneumatic tools or accessories, such as nozzles for cleaning windshields, pneumatic tool interfaces, etc.

[0034] The detection device includes a sensor and a transmitter. The sensor is installed inside the energy storage device and is used to collect the air pressure inside the energy storage device. The transmitter is electrically connected to the sensor and is used to receive the signal from the sensor and send it to the repeater through wireless transmission, such as Bluetooth, Wi-Fi or dedicated radio frequency (RF) communication protocol and other wireless transmission technologies.

[0035] A repeater is used to receive wireless signals from a transmitter and possibly amplify or process them before forwarding them to a feedback device. Repeaters help increase the transmission distance of wireless signals, ensuring reliable communication even in complex or long-distance situations.

[0036] The repeater can be electrically connected to the feedback device by wireless transmission. There is no need to set a wiring harness between the detection device and the repeater, and between the repeater and the feedback device, thereby saving the wiring harness in the air pressure monitoring system. In addition, the repeater can also be electrically connected to the feedback device through a wiring harness. It can be understood that the traditional sensor is electrically connected to the display through a certain length of wiring harness. The farther the distance between the sensor and the display, the more wiring harnesses are used. The technical solution of the utility model can perform wireless communication between the transmitter and the repeater, thereby saving the wiring harness between the transmitter and the repeater. The closer the distance between the repeater and the feedback device, the more wiring harnesses are saved. Moreover, multiple detection devices all perform wireless communication with the repeater, and the repeater and the feedback device only need to be connected by a wiring harness, which greatly reduces the use of wiring harnesses.

[0037] Each detection device may send the air pressure value of each corresponding energy storage device to the feedback device through each corresponding repeater, or each detection device may send the air pressure value of each corresponding energy storage device to the feedback device through the same repeater.

[0038] In one embodiment, the feedback device includes a display, which is used to display the air pressure value detected by the sensor in real time, so that the driver can monitor the status of the energy storage device. In another embodiment, the feedback device includes an alarm, and when the air pressure is lower than a preset safety threshold, the alarm will sound an audible or visual alarm to remind the driver to take necessary actions, such as replenishing air or checking whether the system is faulty. In another embodiment, the feedback device includes a display and an alarm, and the display can display the air pressure value of the energy storage device in real time, and when the air pressure is lower than a preset safety threshold, the alarm will sound an audible or visual alarm.

[0039] In other systems such as brakes, parking devices, and auxiliary devices that require compressed air, low air pressure may cause the braking performance to deteriorate or even fail completely, thus posing a serious safety hazard. The internal air pressure of the energy storage device is collected in real time by the detection device and sent to the feedback device through a repeater, so that the internal air pressure of the energy storage device can be continuously monitored and fed back in time, and the driver can respond quickly, thereby reducing the risk of potential accidents.

[0040] The air pressure signal detected by the detection device is first transmitted to the repeater by wireless transmission, and then forwarded to the feedback device by the repeater, replacing the traditional solution of directly connecting the air pressure sensor and the display instrument through a wiring harness, thereby reducing the connection of the wiring harness in the air pressure monitoring system. In particular, when there are multiple energy storage devices in the air pressure monitoring system, only one repeater is needed to simultaneously receive and forward the air pressure signals sent by multiple detection devices, which greatly reduces the setting of the wiring harness in the air pressure monitoring system, not only reducing the complexity of the installation of the air pressure monitoring system and reducing the production cost, but also reducing the difficulty of troubleshooting and the risk of short circuit caused by too many wiring harnesses.

[0041] The technical solution of the utility model is to set up a transmitter and a repeater capable of wireless communication, so that the air pressure information inside the energy storage device detected by the detection device can be forwarded by the repeater to the feedback device through wireless transmission, and the feedback device displays and / or warns, thereby realizing real-time monitoring of the air pressure of the energy storage device and reducing the wiring harness in the air pressure monitoring system.

[0042] In one embodiment, see Figure 2 The vehicle includes an air supply device and a brake. The air supply device drives the brake to perform braking through an energy storage device. The brake includes a front brake and a rear brake. The energy storage device includes a first brake energy storage device corresponding to the front brake, and a second brake energy storage device corresponding to the rear brake. The detection device includes a first detection module installed corresponding to the first brake energy storage device, and a second detection module installed corresponding to the second brake energy storage device.

[0043] The air supply device is used to generate compressed air and provide compressed air to the energy storage device, so that the brake can achieve fast and effective braking. The air supply device includes an electric air compressor, a heat dissipation pipe, a dryer and a four-circuit protection valve. Among them, the electric air compressor is responsible for inhaling ambient air and compressing it to a high-pressure state, providing a power source for the entire pneumatic system. The heat dissipation pipe is not only used to transport compressed air, but also has a heat dissipation function, which helps to reduce the temperature of compressed air during transmission and avoid system problems caused by high temperature. The dryer removes moisture from the compressed air to prevent metal parts in the brake system from rusting and freezing, thereby ensuring the reliability of the pneumatic system and extending its service life. The four-circuit protection valve divides the air circuit into four independent circuits. Even if one of the circuits fails, it can ensure the normal operation of the remaining circuits, thereby improving the safety and reliability of the brake system.

[0044] The front brake is controlled by pressing the brake pedal / releasing the brake pedal, and the lower chamber of the foot valve controls the front axle quick release valve to fill or deflate the front axle driving air chamber, thereby activating or releasing the brake. The first brake energy storage device is used to provide power for the front brake and is usually located at the front of the vehicle, close to the front axle, so as to quickly respond and reduce braking delay. The first brake energy storage device can also be installed on the side of the frame, close to the front wheel. The detection device includes a first detection module, and the first detection module includes a first sensor and a first transmitter. The first sensor is installed on the first brake energy storage device and is used to collect the air pressure state of the first brake energy storage device. The first transmitter sends the collected air pressure signal to the repeater by wireless transmission, and the repeater forwards it to the feedback device.

[0045] The rear brake is activated by pressing / releasing the brake pedal, and the upper chamber of the foot valve controls the relay valve to inflate or deflate the rear axle driving air chamber, thereby activating or releasing the brake. The second brake energy storage device is used to provide power for the rear brakes and is usually located at the rear of the vehicle, close to the rear axle, to ensure the stability of the vehicle during braking. The second brake energy storage device can also be installed on the side of the frame, close to the rear wheel. The detection device also includes a second detection module, which includes a second sensor and a second transmitter. The second sensor is installed on the second brake energy storage device and is used to collect the air pressure state of the second brake energy storage device. The second transmitter sends the collected air pressure signal to the repeater by wireless transmission, and the repeater then forwards it to the feedback device.

[0046] When the driver steps on the brake pedal, the first brake energy storage device and the second brake energy storage device release gas to the corresponding front and rear brakes respectively, pushing the corresponding brakes to perform braking actions. The first detection module and the second detection module continuously monitor the air pressure level in their respective energy storage devices. The air pressure values ​​of the first brake energy storage device and the second brake energy storage device can be directly displayed on the display. At the same time, if the air pressure of any energy storage device is lower than the preset safety threshold, the feedback device will send a warning signal through the alarm to prompt the driver to pay attention and take corresponding measures.

[0047] The front brake communicates wirelessly with the repeater via the first transmitter, and the rear brake communicates wirelessly with the repeater via the second transmitter, so that the air pressure of the first brake energy storage device and the second brake energy storage device can be monitored separately, so that the driver can grasp the changes in the air pressure of the corresponding energy storage device in real time, helping the driver to control the vehicle to a safe state in advance, thereby reducing the risk of potential accidents.

[0048] In one embodiment, see Figure 2The vehicle further includes a parking device, the energy storage device further includes a parking energy storage device corresponding to the parking device, the air supply device drives the parking device to perform the parking action through the parking energy storage device, the parking energy storage device is equipped with at least one detection device, the detection device further includes a third detection module correspondingly installed in the parking energy storage device, and the sensor of the third detection module can detect the internal air pressure of the parking energy storage device.

[0049] The parking device is used to prevent the vehicle from moving when it is stopped, especially on a slope or uneven ground. The safety of the vehicle is guaranteed even when the vehicle is parked by independent monitoring and management of the parking device. The parking energy storage device is used to drive the parking device to perform the parking action. The detection device also includes a third detection module, which includes a third sensor and a third transmitter. The third sensor is installed on the parking energy storage device and is used to collect the air pressure state of the parking energy storage device. The third transmitter sends the collected air pressure signal to the repeater by wireless transmission, and then the repeater forwards it to the feedback device.

[0050] When the driver wants to park the vehicle, he can operate the parking controller (such as a handbrake or an electronic parking button) to transmit the command to the air supply device, which then delivers compressed gas to the parking energy storage device according to the command. The parking energy storage device releases the gas to drive the parking device to lock the wheels and keep the vehicle stationary.

[0051] The third sensor continuously monitors the air pressure in the parking energy storage device to ensure that there is sufficient pressure to maintain the parking state. The display can show the air pressure value in the parking energy storage device or not. However, when the air pressure in the parking energy storage device drops below the preset safety threshold, the feedback device will send a warning signal through the alarm to inform the driver that the parking system may not be able to effectively keep the vehicle stationary and that the air pressure needs to be replenished or the system needs to be checked. Therefore, even when parked for a long time or in a specific environment, the parking system can maintain its effectiveness without causing the vehicle to move accidentally due to insufficient air pressure, thereby increasing the safety of the vehicle and its surrounding environment.

[0052] In one embodiment, see Figure 2 The vehicle also includes an auxiliary device connected to the air supply device, the auxiliary device includes an air suspension and / or a door drive air pump and / or an air bag of a seat, the energy storage device also includes an auxiliary energy storage device for use by the auxiliary device, and the detection device also includes a fourth detection module correspondingly installed in the auxiliary energy storage device, and the sensor of the fourth detection module can detect the internal air pressure of the auxiliary energy storage device.

[0053] The auxiliary device includes at least one of an air suspension, a door drive air pump, and an air bag of a seat. The auxiliary energy storage device is used to store compressed gas for use by the auxiliary device. The detection device also includes a fourth detection module, which includes a fourth sensor and a fourth transmitter. The fourth sensor is installed on the auxiliary energy storage device and is used to monitor the air pressure level inside it. The fourth transmitter sends the collected air pressure signal to the repeater by wireless transmission, and then the repeater forwards it to the feedback device.

[0054] When the auxiliary device needs to work, such as adjusting the height of the air suspension, opening the door or adjusting the seat support, the air supply device sends compressed gas to the auxiliary energy storage device, and the auxiliary energy storage device releases gas for the auxiliary device to use and perform the corresponding auxiliary function. The fourth sensor continuously monitors the air pressure in the auxiliary energy storage device to ensure that the auxiliary device is always ready. The display can show the air pressure value in the auxiliary energy storage device or not. However, when the air pressure is lower than the predetermined safety threshold, the feedback device will send a warning signal through the alarm, prompting the driver that the function of the auxiliary device may be limited and the air pressure needs to be replenished or the system needs to be checked.

[0055] In one embodiment, see Figure 2 The first detection module, the second detection module, the third detection module and the fourth detection module perform wireless communication with the same repeater.

[0056] The energy storage device includes a first brake energy storage device corresponding to the front brake, a second brake energy storage device corresponding to the rear brake, a parking energy storage device corresponding to the parking device, and an auxiliary energy storage device corresponding to the auxiliary device. The detection device includes a first detection module corresponding to the first brake energy storage device, a second detection module corresponding to the second brake energy storage device, a third detection module corresponding to the parking energy storage device, and a fourth detection module corresponding to the auxiliary energy storage device. Each detection module includes a corresponding sensor and a transmitter, and each transmitter performs wireless communication with the same repeater.

[0057] As a central communication node, the repeater is able to receive wireless signals from all detection modules and forward them to the feedback device. The repeater has a signal enhancement function to ensure stable communication even in complex or long-distance vehicle layouts. Multiple detection modules can use the same repeater to reduce the need for additional hardware and reduce the production cost of the air pressure monitoring system; it can simplify the installation and maintenance of the repeater, reduce the complexity of the installation of the air pressure monitoring system and the workload of maintenance, reduce the possible failure points of multiple independent repeaters, and improve the stability and reliability of the entire air pressure monitoring system; the information of all detection modules is collected through the same repeater, which is convenient for centralized management and analysis of data.

[0058] In one embodiment, the repeater is mounted in the middle of the chassis of the vehicle.

[0059] The first detection module, the second detection module, the third detection module, and the fourth detection module are respectively installed in different energy storage devices. The repeater is installed in the middle position of the vehicle chassis and can receive the transmitter signals from different positions of the vehicle. Since the energy storage devices are installed in different positions of the vehicle, the positions of the transmitters of each detection module are also different. As a result, the signal propagation paths and intensities received by the repeater from each transmitter are different. Furthermore, the repeater can identify which transmitter corresponding to an energy storage device sent the signal based on the signal intensity, reception time, or signal characteristics. Specifically, the closer the transmitter is to the repeater, the stronger the signal intensity usually is. Through the signal intensity, the repeater can roughly determine the position of the transmitter. Each transmitter can have a different code or ID, so that even if the signal intensities are similar, the repeater can identify which transmitter corresponding to an energy storage device sent the signal by decoding the signal. In addition, the repeater can also measure the time difference for the signal to reach from the transmitter and can infer the relative position of the transmitter corresponding to the energy storage device based on the signal propagation time. The repeater can not only enhance the transmission of wireless signals and achieve wireless communication with the transmitter, but also help the air pressure monitoring system identify and monitor the states of different energy storage devices, thereby realizing the effective management and maintenance of the entire air pressure monitoring system.

[0060] In one embodiment, please refer to Figure 2 , the feedback device further includes a signal processor electrically connected to the alarm. The signal processor is configured to control the alarm to give a warning when the air pressure detected by the detection device is lower than the first preset value and / or higher than the second preset value.

[0061] The feedback device further includes a signal processor that activates the alarm when abnormal air pressure is detected. The signal processor receives the air pressure data from the detection modules (the first detection module to the fourth detection module) through the repeater. The signal processor analyzes the data and determines whether the air pressure of the corresponding energy storage device is within the set range. Among them, the first preset value is the lowest safety limit value of the air pressure of the energy storage device, and the second preset value is the highest safety limit value of the air pressure of the energy storage device. The first preset value and the second preset value of each energy storage device can be the same or different.

[0062] When the signal processor detects that the air pressure value of any energy storage device is lower than its corresponding first preset value or higher than its corresponding second preset value, the signal processor can control the alarm to start and give an audible and visual alarm. The alarm can be a buzzer, a siren, a flashing light, or a warning icon on the display, alone or in any combination, aiming to quickly attract the driver's attention. By setting the signal processor, the feedback device can more intelligently process the air pressure information received from the detection module, activate the alarm only when it is really needed, avoid unnecessary warnings, and at the same time ensure that the driver can be notified in time in case of an emergency, thereby improving the overall safety and reliability of the vehicle.

[0063] The display of the feedback device can display the air pressure values ​​of the first brake energy storage device and the second brake energy storage device, and display the air pressure values ​​of the parking energy storage device and the auxiliary energy storage device through menu selection. The signal processor of the feedback device can compare and judge the air pressure value of the energy storage device with the preset value, and control the alarm to perform low pressure alarm or high pressure alarm, so that the feedback device integrates conventional air pressure display, low pressure alarm and high pressure alarm functions. Among them, adding a high pressure alarm function can avoid unsafe factors caused by the pressure of the energy storage device being higher than the second preset value.

[0064] In one implementation, the first preset value ranges from 0.5 MPa to 0.7 MPa (different types of vehicles have different air pressure requirements, which can be set according to different vehicle models).

[0065] Below 0.5MPa may mean that the pressure is insufficient to effectively perform braking, parking or assist functions, while close to 0.7MPa provides additional buffer to prevent sudden drops in pressure during actual use.

[0066] Therefore, when the detection device detects that the air pressure drops below 0.7MPa, the signal processor will evaluate whether the air pressure is close to or below the lower limit of 0.5MPa. Once it reaches or falls below this lower limit, the signal processor will activate the alarm, which will sound or light an alarm, and the display will show the corresponding "low pressure of energy storage device" to warn the driver that the air pressure is too low. The driver can take safety measures in advance, such as replenishing air or checking whether there are leaks in the system, to ensure that the corresponding brakes, parking devices, and auxiliary devices can maintain sufficient pressure under various operating conditions.

[0067] In one implementation, the second preset value ranges from 1.0 MPa to 1.2 MPa (different types of vehicles have different air pressure requirements, which can be set according to different vehicle models).

[0068] Excessive air pressure may cause system rupture, seal failure or component fatigue, which will not only damage the vehicle but may also cause harm to personnel; excessive air pressure will lead to unnecessary waste of energy because compressed air requires additional energy to generate; in addition, high air pressure may also lead to frequent pressure adjustment, increasing energy loss and maintenance costs.

[0069] Therefore, when the detection device monitors that the air pressure rises to above 1.0MPa, the signal processor will evaluate whether the air pressure is close to or exceeds the upper limit of 1.2MPa. Once this upper limit is reached or exceeded, the signal processor will activate the alarm, which will sound or light an alarm, and the display will show the corresponding "high pressure of energy storage device" to warn the driver that the air pressure is too high and it may be necessary to release some of the pressure or check whether there is a fault in the system, such as a malfunction of the pressure regulator or an over-operation of the air compressor. In this way, the system can take preventive measures before the air pressure is too high to avoid potential safety risks and system damage.

[0070] In one embodiment, the vehicle also includes a brake pedal and a brake monitor, the brake monitor is used to monitor the activation of the brake pedal, the signal processor is electrically connected to the brake monitor, and is also used to control the alarm to warn when the change in air pressure detected by the detection device within a preset time exceeds a third preset value and the brake monitor does not detect the activation of the brake pedal.

[0071] In the case where the brake monitor does not detect the activation of the brake pedal, when the air pressure of a certain energy storage device drops too quickly per unit time, the display may show that the corresponding energy storage device has a leak, such as displaying the corresponding "Energy storage device is leaking rapidly, please stop and check", and the alarm may sound an emergency leak alarm. By giving an early warning of abnormal pressure reduction in the energy storage device, the driver can be helped to control the vehicle in a safe state in advance. Among them, the value range of the third preset value is 0.03MPa / s to 0.08MPa / s (different types of vehicles have different air pressure requirements, which can be set according to different models).

[0072] In one embodiment, see Figure 1 and Figure 2 , the repeater is electrically connected to the feedback device through a transmission harness.

[0073] The repeater collects the air pressure data wirelessly received from each detection module (the first detection module to the fourth detection module), and then transmits the data to the feedback device through the transmission harness. The signal processor in the feedback device analyzes the data to determine whether the air pressure is within the preset safety range. If the air pressure is lower than the first preset value (0.5MPa to 0.7MPa) or higher than the second preset value (1.0MPa to 1.2MPa), the signal processor will activate the alarm to warn the driver. The repeater and the feedback device are connected by wire, and the signal transmission between the two is not affected by electromagnetic interference, signal attenuation or obstacles, ensuring the stability of signal transmission.

[0074] Wireless communication is carried out between transmitters and repeaters corresponding to multiple energy storage devices (a first braking energy storage device, a second braking energy storage device, a parking energy storage device and an auxiliary energy storage device), and the repeater and the feedback device are electrically connected via a transmission harness. There is no need to connect any energy storage device to the feedback device via a harness, thereby reducing the harness in the air pressure monitoring system while achieving real-time monitoring of the air pressure of the energy storage device.

[0075] In one embodiment, the sensor is configured as an air pressure sensor.

[0076] The sensor is specifically configured as an air pressure sensor, which is used to monitor the internal air pressure of the energy storage device in the vehicle. It can convert the gas pressure in the energy storage device into a readable electrical signal, and then send it to the feedback device through a transmitter and a repeater.

[0077] In other embodiments, the sensor may also be a piezoresistive sensor, a capacitive sensor, a piezoelectric sensor, a thermocouple and thermistor, an optical sensor, a MEMS (micro-electromechanical system) sensor, an ultrasonic sensor, and the like.

[0078] In one embodiment, the alarm includes a speaker.

[0079] When the air pressure is lower than the first preset value (0.5MPa to 0.7MPa) or higher than the second preset value (1.0MPa to 1.2MPa), the speaker will sound an audible alarm. The audible alarm is usually a continuous beep or a pre-recorded voice warning designed to attract the driver's attention.

[0080] In another embodiment, the alarm comprises a lighting unit.

[0081] The light-emitting unit can be an LED light, a warning light on the dashboard, or other types of indicator lights. When the air pressure is abnormal, these lights will flash or light up continuously to provide a visual warning. At night or in a noisy environment, the light-emitting unit can provide additional warnings when the driver cannot hear the audible alarm.

[0082] In yet another embodiment, the alarm includes a speaker and a light emitting unit.

[0083] By combining a speaker and a light-emitting unit to trigger both an audible and visual alarm, the alarm ensures that the driver receives timely and important information about abnormal air pressure regardless of the driving environment. The alarm prompts the driver to take prompt action to make an appropriate response, prevent potential safety hazards, and maintain the safe operation of the vehicle.

[0084] The utility model also proposes a vehicle, which includes an air pressure monitoring system. The specific structure of the air pressure monitoring system refers to the above-mentioned embodiment. Since the vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0085] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air pressure monitoring system, applied to a vehicle having an energy storage device, wherein the energy storage device is used for at least one of a brake, a parking device, and an auxiliary device of the vehicle, characterized in that: The air pressure monitoring system comprises: A detection device, provided in the energy storage device, comprising a sensor and a transmitter electrically connected to the sensor, wherein the sensor is provided in the energy storage device and is capable of obtaining the internal air pressure of the energy storage device; a repeater for wirelessly communicating with the transmitter; and A feedback device is electrically connected to the repeater, and the feedback device includes a display and / or an alarm. The display is used to display the air pressure detected by the sensor, and the alarm is used to warn the driver.

2. The air pressure monitoring system according to claim 1, characterized in that: The vehicle includes an air supply device and a brake, the air supply device drives the brake to perform braking through the energy storage device, the brake includes a front brake and a rear brake, the energy storage device includes a first brake energy storage device corresponding to the front brake, and a second brake energy storage device corresponding to the rear brake, and the detection device includes a first detection module correspondingly installed on the first brake energy storage device, and a second detection module correspondingly installed on the second brake energy storage device.

3. The air pressure monitoring system according to claim 2, characterized in that: The vehicle also includes a parking device, the energy storage device also includes a parking energy storage device corresponding to the parking device, the air supply device drives the parking device to perform a parking action through the parking energy storage device, the parking energy storage device is equipped with at least one of the detection devices, and the detection device also includes a third detection module correspondingly installed on the parking energy storage device, and the sensor of the third detection module can detect the internal air pressure of the parking energy storage device.

4. The air pressure monitoring system according to claim 3, characterized in that: The vehicle also includes an auxiliary device connected to the air supply device, the auxiliary device includes an air suspension and / or a door drive air pump and / or an air bag of a seat, the energy storage device also includes an auxiliary energy storage device for use by the auxiliary device, and the detection device also includes a fourth detection module correspondingly installed on the auxiliary energy storage device, and the sensor of the fourth detection module can detect the internal air pressure of the auxiliary energy storage device.

5. The air pressure monitoring system according to claim 4, characterized in that: The first detection module, the second detection module, the third detection module and the fourth detection module perform wireless communication with the same repeater; And / or, the repeater is installed in the middle of the chassis of the vehicle.

6. The air pressure monitoring system according to claim 1, characterized in that: The feedback device further comprises a signal processor electrically connected to the alarm, and the signal processor is used to control the alarm to issue an alarm when the air pressure detected by the detection device is lower than a first preset value and / or higher than a second preset value.

7. The air pressure monitoring system according to claim 6, characterized in that: The first preset value ranges from 0.5 MPa to 0.7 MPa; and / or the second preset value ranges from 1.0 MPa to 1.2 MPa.

8. The air pressure monitoring system according to claim 7, characterized in that: The vehicle also includes a brake pedal and a brake monitor, the brake monitor is used to monitor the activation of the brake pedal, the signal processor is electrically connected to the brake monitor, and is also used to control the alarm to warn when the change in air pressure detected by the detection device within a preset time exceeds a third preset value and the brake monitor does not detect the activation of the brake pedal.

9. The air pressure monitoring system according to claim 1, characterized in that: The repeater is electrically connected to the feedback device via a transmission harness; and / or, the sensor is configured as an air pressure sensor; And / or, the alarm includes a speaker and / or a light emitting unit.

10. A vehicle, characterized in that: Comprising an air pressure monitoring system as claimed in any one of claims 1 to 9.

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