An instrument for display control based on ECAS

Abstract

The present invention discloses an instrument for display control based on ECAS, which relates to the field of traditional energy tractors. The device includes an ECAS controller, a gateway and a combination instrument. The gateway is connected to the ECAS controller to collect air suspension system data in the ECAS controller and upload the data to the vehicle body CAN communication network; the combination instrument is connected to the gateway to parse the air suspension system data uploaded by the gateway in the vehicle body CAN communication network and display it visually. The present invention facilitates the driver to better control vehicle information, facilitates the driver's diversified control in actual operation scenarios, improves vehicle operation efficiency, and enhances the overall value of the vehicle. At the same time, the present invention does not increase the cost of the whole vehicle, the estimated credibility is high, and the humanized reminder of the combination instrument will not cause customers' irritability.

Description

Technical Field

[0001] The invention relates to the field of traditional energy tractors, and in particular to an instrument for display control based on ECAS. Background Art

[0002] The traditional air suspension control mode uses a mechanical height valve. With the promotion of system applications and the development of vehicle control technology, electronic control has gradually replaced traditional mechanical control. The electronic control system not only improves the operating comfort and response sensitivity, but also can add many auxiliary functions, such as vehicle lifting function, vehicle height limit function, rapid adjustment process, pressure monitoring function, safety control, etc.

[0003] Although the existing ECAS (Electronic-Controlled Air Suspension) system has many auxiliary functions, it is difficult to feed back various information to the driver in a timely manner. Summary of the invention

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide an instrument for display control based on ECAS, which can solve the problem that although the existing ECAS system has many auxiliary functions, it is difficult to feed back various information to the driver in a timely manner.

[0005] Provided is an instrument for display control based on ECAS, comprising: an ECAS controller, a gateway and a combined instrument, wherein the gateway is connected to the ECAS controller to collect air suspension system data in the ECAS controller and upload the data to a vehicle body CAN communication network; the combined instrument is connected to the gateway to parse the air suspension system data uploaded by the gateway in the vehicle body CAN communication network and perform visual display.

[0006] In some embodiments, the visual display includes an altitude display strategy, an axle load information display strategy, an air pressure value display strategy, and an instrument display strategy.

[0007] In some embodiments, the height display strategy is specifically as follows: the instrument cluster reads the left and right height information of the vehicle body in the air suspension system data and calculates to obtain the average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body. Based on the calculated average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body, when the height difference between the left and right sides of the vehicle body is greater than or equal to the preset height value, the instrument cluster prompts that the vehicle is tilted; the instrument cluster reads the vehicle height value in the air suspension system data, based on the vehicle height value, when the vehicle height value is greater than the calibration value, the instrument cluster prompts that the vehicle height value is higher than the calibration value, and when the vehicle height is less than the calibration value, the instrument cluster prompts that the vehicle height value is lower than the calibration value; the instrument cluster reads the message in the air suspension system data, based on the message in the air suspension system data, determines the lifting state of the vehicle, when the vehicle is in the lifting state, the instrument cluster prompts that the vehicle is lifting, and when the vehicle is in the lowering state, the instrument cluster prompts that the vehicle is lowering; the instrument cluster reads the vehicle speed signal in the air suspension system data, based on the vehicle speed signal, when the vehicle speed signal is greater than the preset speed, the instrument cluster no longer prompts that the vehicle is tilted.

[0008] In some embodiments, in the height display strategy, the instrument cluster periodically calculates an average value of the height of the left side of the vehicle body and an average value of the height of the right side of the vehicle body, so as to periodically refresh the average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body on the instrument cluster.

[0009] In some embodiments, the strategy for displaying the axle load information is as follows: the instrument cluster reads the axle load value in the air suspension system data, and displays the read axle load value on the instrument cluster.

[0010] In some embodiments, in the axle load information display strategy, the axle load value is rounded and displayed on the instrument cluster, and the instrument cluster periodically reads the axle load value in the air suspension system data to periodically refresh the axle load value display on the instrument cluster.

[0011] In some embodiments, the air pressure value display strategy is specifically as follows: the instrument cluster reads the left and right airbag pressure values ​​in the air suspension system data and calculates to obtain an average value of the left airbag pressure value and an average value of the right airbag pressure value, and displays the calculated average value of the left airbag pressure value and the calculated average value of the right airbag pressure value on the instrument cluster.

[0012] In some embodiments, in the air pressure value display strategy, the instrument cluster periodically reads the average value of the left airbag pressure value and the average value of the right airbag pressure value in the air suspension system data, so as to periodically refresh the average value of the left airbag pressure value and the average value of the right airbag pressure value on the instrument cluster.

[0013] In some embodiments, the instrument display strategy is specifically as follows: the instrument cluster reads the message in the air suspension system data, determines the working status of the ECAS system according to the read message, and based on the obtained working status of the ECAS system: when the ECAS system is in a working state, the instrument cluster displays the ECAS information interface; when the ECAS system is in a non-working state, and the duration of the non-working state is greater than a preset time, the instrument cluster returns to a default interface.

[0014] In some embodiments, the instrument cluster is controlled by buttons disposed on a steering wheel to adjust a display interface of the instrument cluster to switch between different interfaces.

[0015] The beneficial effects of the technical solution provided by this application include:

[0016] 1. Analyze the actual operation of the driver and the actual scenario of ECAS operation, calculate the data needed in the operation process through calculation and display it on the instrument;

[0017] 2. Determine the display and prompt logic according to the ECAS operation scenario and technical status to improve the life of the ECAS system, extend the use time of the ECAS system, and save the driver the cost increase caused by parts wear;

[0018] In general, the present application provides an instrument that assists the ECAS system control and can display specific operations and various information, so as to facilitate the driver to better control the vehicle information, facilitate the driver's diversified operations in actual operation scenarios, improve the vehicle operation efficiency, and enhance the overall value of the vehicle. While achieving the above-mentioned beneficial effects, the present application does not increase the cost of the whole vehicle, the estimation has a high credibility, and the humanized reminders of the combination instrument will not cause irritation to customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the structure of an instrument for display control based on ECAS provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] The embodiment of the present application provides an instrument for display control based on ECAS, which can solve the problem that the existing ECAS system is difficult to feed back various information to the driver in a timely manner.

[0023] See also Figure 1 As shown, an embodiment of the present invention provides an instrument for display control based on ECAS, including an ECAS controller, a gateway and an instrument cluster, wherein the gateway is connected to the ECAS controller to collect air suspension system data in the ECAS controller and upload the data to a vehicle body CAN (Controller Area Network) communication network, and the instrument cluster is connected to the gateway to parse the air suspension system data uploaded by the gateway in the vehicle body CAN communication network and display it visually.

[0024] Compared with the prior art, the embodiment of the present application provides an instrument based on ECAS for display control, wherein the ECAS controller has vehicle lifting function, roll function, vehicle height limit function, highly integrated system, fast adjustment process, reduced air consumption, pressure monitoring function, safety control, maintenance and detection and other functions, and can also generate air suspension system data and messages and send them to the gateway; the gateway can be used to parse the air suspension system data and messages transmitted by the ECAS controller and upload them to the vehicle body CAN communication network; the instrument cluster is used to further parse the air suspension system data and related messages uploaded by the gateway in the vehicle body CAN communication network, and visualize the vehicle body information through different display strategies, so that the driver can understand the vehicle status more conveniently.

[0025] As an optional embodiment, see Figure 1 As shown, the visual display includes a height display strategy, an axle load information display strategy, an air pressure value display strategy and an instrument display strategy. The air suspension system data and messages obtained by analyzing the instrument cluster are visualized on the instrument cluster through different display strategies, providing the driver with various vehicle information in a more concise and clear manner.

[0026] As an optional embodiment, see Figure 1 As shown, for the height display strategy, it is specifically:

[0027] The instrument cluster reads the left and right height information of the vehicle body in the air suspension system data and calculates to obtain the average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body. Based on the calculated average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body, when the height difference between the left and right sides of the vehicle body is greater than or equal to the preset height value, the instrument cluster prompts that the vehicle is tilted. When the height difference between the left and right sides of the vehicle is greater than or equal to 10mm, the vehicle is tilted. The instrument cluster can give a concise and clear prompt to the driver, so that the driver can adjust the vehicle so that the vehicle body is not in a tilted state, so that the shock absorber springs on the left and right sides of the air suspension system are in the same fatigue state, thereby extending the service life of the air suspension system. At the same time, if the vehicle body is tilted for a long time, it will cause uneven force on the vehicle frame and tires, further causing irreversible deformation of the frame and wear on the tires. At this time, the driver can make timely adjustments to the vehicle body by observing the tilt prompt of the vehicle cluster, thereby extending the service life of the vehicle, tires and air suspension system.

[0028] The combined instrument reads the vehicle height value in the air suspension system data. Based on the vehicle height value, when the vehicle height value is greater than the calibration value, the combined instrument prompts that the vehicle height value is higher than the calibration value. When the vehicle height is less than the calibration value, the combined instrument prompts that the vehicle height value is lower than the calibration value. At this time, the driver adjusts the vehicle height in time by observing the vehicle height value prompt of the combined instrument;

[0029] The instrument cluster reads the message in the air suspension system data, and determines the vehicle's lifting state based on the message in the air suspension system data. When the vehicle is in the lifting state, the instrument cluster will give a vehicle lifting prompt, and when the vehicle is in the lowering state, the instrument cluster will give a vehicle lowering prompt. In the air suspension system, the height is mainly adjusted by the airbag, so that the driver can quickly connect or detach the trailer. In the absence of the display of lifting or lowering, the driver cannot clearly know the accurate value of the rear axle airbag height, and the airbag may be in abnormal height operation for a long time, affecting its service life. The lifting or lowering prompt of the instrument cluster can let the driver know the height information of the airbag concisely and clearly, adjust the vehicle body in time, and extend the service life of the airbag;

[0030] The instrument cluster reads the vehicle speed signal in the air suspension system data. Based on the vehicle speed signal, when the vehicle speed signal is greater than the preset speed, the instrument cluster no longer prompts that the vehicle is tilted, and the preset speed of the vehicle is 20km / h.

[0031] As an optional embodiment, see Figure 1As shown, in the height display strategy, the instrument cluster periodically calculates the average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body, so as to periodically refresh the average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body on the instrument cluster. The cycle of the calculation of the average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body by the instrument cluster and the cycle of refreshing the average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body on the instrument cluster are both 500ms. The instrument cluster updates data in time so that the driver can receive the latest vehicle height information.

[0032] As an optional embodiment, see Figure 1 As shown in the figure, the axle load information display strategy is as follows:

[0033] The instrument cluster reads the axle load value in the air suspension system data and displays the read axle load value on the instrument cluster, which can provide the driver with the vehicle's axle load information in a concise and clear manner, so that the driver can adjust and distribute the vehicle's load to reduce the vehicle's axle load, improve the vehicle's driving stability, and extend the service life of the axle.

[0034] As an optional embodiment, see Figure 1 As shown, in the axle load information display strategy, the axle load value is rounded and displayed on the instrument cluster, and the unit of the axle load value is "×100kg". The instrument cluster periodically reads the axle load value in the air suspension system data to periodically refresh the axle load value display on the instrument cluster. The cycle of the instrument cluster reading the axle load value in the air suspension system data and the cycle of the instrument cluster axle load value display are both 500ms. The instrument cluster updates data in a timely manner so that the driver can receive the latest axle load value information.

[0035] As an optional embodiment, see Figure 1 As shown in the figure, the pressure value display strategy is as follows:

[0036] The instrument cluster reads the left and right airbag pressure values ​​in the air suspension system data and calculates to obtain the average left airbag pressure value and the average right airbag pressure value, and displays the calculated average left airbag pressure value and the average right airbag pressure value on the instrument cluster, which can accurately display the current airbag pressure value of the vehicle and assist the driver in adjusting the airbag pressure.

[0037] As an optional embodiment, see Figure 1As shown, in the air pressure value display strategy, the instrument cluster periodically reads the average value of the left airbag pressure value and the average value of the right airbag pressure value in the air suspension system data, so as to periodically refresh the average value of the left airbag pressure value and the average value of the right airbag pressure value on the instrument cluster, and the period for reading the average value of the left airbag pressure value and the average value of the right airbag pressure value in the air suspension system data and refreshing the average value of the left airbag pressure value and the average value of the right airbag pressure value on the instrument cluster is 500ms.

[0038] As an optional embodiment, see Figure 1 As shown in the figure, for the instrument display strategy, it is as follows:

[0039] The instrument cluster reads the message in the air suspension system data, and determines the working status of the ECAS system based on the read message. Based on the obtained working status of the ECAS system:

[0040] When the ECAS system is in working state, the instrument cluster displays the ECAS information interface. The intelligent display of the ECAS information interface can provide the driver with various vehicle information in ECAS in a timely manner, making it easier for the driver to adjust the vehicle through real-time vehicle information and perform diversified operations in actual operation scenarios.

[0041] When the ECAS system is not working and the duration of the non-working state is greater than the preset time, the instrument cluster returns to the default interface and intelligently closes the ECAS information interface to prevent the driver from forgetting to close the ECAS interface.

[0042] As an optional embodiment, see Figure 1 As shown, the instrument cluster is controlled by buttons arranged on the steering wheel to adjust the display interface of the instrument cluster to switch between different interfaces. The control buttons are arranged on the steering wheel of the vehicle to facilitate the driver to adjust the display interface of the instrument cluster to obtain the vehicle information he wants or filter out unnecessary vehicle information.

[0043] An instrument for display control based on ECAS in an embodiment of the present application is specifically implemented as follows:

[0044] In actual use, the instrument cluster first reads the message in the air suspension system data, and determines the working status of the ECAS system based on the read message. According to the instrument display strategy, when it is detected that the ECAS system is in working state, that is, the ECAS system is in the rising or falling state, the instrument cluster continues to read the data and messages in the air suspension system while displaying the ECAS information interface, and displays the obtained information on the ECAS information interface of the instrument cluster through different display strategies.

[0045] When the instrument cluster reads the vehicle height information, the height information of the vehicle is displayed according to the height display strategy. The instrument cluster reads the left and right vehicle heights in the air suspension system data with a cycle of 500ms, and calculates the average value of the left vehicle height and the average value of the right vehicle height with the same cycle. When the difference between the average value of the left vehicle height and the average value of the right vehicle height is greater than or equal to 10mm, the instrument cluster displays the prompt "the vehicle is tilted". The instrument cluster reads the vehicle height value information in the air suspension system data, and sets the preset calibrated height value of the vehicle to 0. When the vehicle height value is greater than the preset calibrated height value, that is, the vehicle height value is greater than 0, the instrument cluster displays "+" in front of the height value to indicate that the vehicle's airbag is in an ascending state. When the vehicle height value is less than the preset calibrated height value, that is, the vehicle height value is less than 0, the instrument cluster displays "-" in front of the height value to indicate that the vehicle's airbag is in a descending state. The instrument cluster reads the message from the air suspension system, and determines whether the vehicle is in an ascending or descending state based on the message. When it is determined that the vehicle is in an ascending state, the instrument cluster displays "↑" above the height value to indicate that the vehicle is in an ascending state. When it is determined that the vehicle is in a descending state, the instrument cluster displays "↓" above the height value to indicate that the vehicle is in a descending state. The instrument cluster reads the vehicle speed signal in the air suspension system data. When the speed signal read is greater than 20km / h, the instrument cluster does not display the prompt "the vehicle is tilted".

[0046] When the instrument cluster reads the vehicle axle load information, the vehicle's axle load value is displayed according to the axle load information display strategy. The instrument cluster reads the vehicle's axle load value in the air suspension system data with a period of 500ms, and after rounding the read axle load value, the axle load value is displayed on the instrument cluster, and "×100kg" is added after the axle load value.

[0047] When the instrument cluster reads the vehicle's air pressure value, the vehicle's air pressure value is displayed according to the air pressure value display strategy. The instrument cluster reads the air pressure values ​​of the left airbag and the right airbag in the air suspension system data with a period of 500ms, and calculates the average air pressure value of the left airbag and the average air pressure value of the right airbag with the same period, and displays the air pressure value information of the left and right airbags on the instrument cluster with "0.1kp" as the minimum change unit.

[0048] When the ECAS information interface is in operation, the driver can control and adjust the ECAS information interface through the buttons on the steering wheel to select different interfaces.

[0049] When the instrument cluster detects that the ECAS system is not working and the duration of the non-working state is greater than 5 seconds, the instrument cluster automatically returns from the ECAS information interface to the set default interface.

[0050] In a possible implementation manner, an embodiment of the present invention further provides a readable storage medium, which is located in the instrument cluster. A computer program is stored on the readable storage medium. When the program is executed by a processor, the following steps are implemented:

[0051] 1. Calculate the left and right heights of the vehicle body according to the air suspension system data to obtain the average values ​​of the left and right heights of the vehicle body. Then, based on the calculated average values ​​of the left and right heights of the vehicle body, when the height difference between the left and right sides of the vehicle body is greater than or equal to a preset height value, control the instrument cluster to prompt that the vehicle is tilted.

[0052] 2. Read the vehicle height value in the air suspension system data and judge the vehicle height. Based on the vehicle height value, when the vehicle height value is greater than the calibration value, the control instrument cluster will prompt the vehicle airbag to rise; when the vehicle height is less than the calibration value, the control instrument cluster will prompt the vehicle airbag to fall;

[0053] 3. Read the message in the air suspension system data and judge the lifting and lowering status of the vehicle. When the vehicle is in the lifting state, the control instrument cluster will prompt the vehicle to rise; when the vehicle is in the lowering state, the control instrument cluster will prompt the vehicle to descend;

[0054] 4. Read the vehicle speed signal in the air suspension system data. Based on the vehicle speed signal, when the vehicle speed signal is greater than the preset speed, the control instrument cluster will no longer prompt the vehicle to tilt;

[0055] 5. Read the axle load value in the air suspension system data, and control the instrument cluster to display the read axle load value on the interface of the instrument cluster;

[0056] 6. Calculate the left and right airbag pressure values ​​in the air suspension system data to obtain the average value of the left airbag pressure value and the average value of the right airbag pressure value, and then control the instrument cluster to display the calculated average value of the left airbag pressure value and the average value of the right airbag pressure value on the interface of the instrument cluster;

[0057] 7. Read the message in the air suspension system data, and judge the working status of the ECAS system according to the read message. Based on the working status of the ECAS system:

[0058] When the ECAS system is in working state, the control instrument cluster displays the ECAS information interface;

[0059] When the ECAS system is in an inoperative state and the duration of the inoperative state is greater than the preset time, the control instrument cluster returns to the default interface.

[0060] The storage medium may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, device or device.

[0061] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, device, or device. The program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0062] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0063] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0064] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0065] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An instrument for display control based on ECAS, characterized in that: include: ECAS controller; A gateway, the gateway is connected to the ECAS controller and is used to collect air suspension system data in the ECAS controller and upload the data to a vehicle body CAN communication network; A combination instrument, the combination instrument is connected to the gateway to parse the air suspension system data uploaded by the gateway in the vehicle body CAN communication network and display it visually; The visual display includes a height display strategy, an axle load information display strategy, an air pressure value display strategy and an instrument display strategy; For the height display strategy, specifically: The combined instrument reads the left and right height information of the vehicle body in the air suspension system data and calculates to obtain an average value of the height of the left side of the vehicle body and an average value of the height of the right side of the vehicle body. Based on the calculated average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body, when the height difference between the left and right sides of the vehicle body is greater than or equal to a preset height value, the combined instrument prompts that the vehicle is tilted; The combined instrument reads the vehicle height value in the air suspension system data, and based on the vehicle height value, when the vehicle height value is greater than the calibration value, the combined instrument prompts that the vehicle height value is higher than the calibration value, and when the vehicle height is less than the calibration value, the combined instrument prompts that the vehicle height value is lower than the calibration value; The combined instrument reads the message in the air suspension system data, and determines the lifting state of the vehicle based on the message in the air suspension system data. When the vehicle is in the lifting state, the combined instrument prompts the vehicle to be lifted, and when the vehicle is in the lowering state, the combined instrument prompts the vehicle to be lowered; The combined instrument reads a vehicle speed signal in the air suspension system data, and based on the vehicle speed signal, when the vehicle speed signal is greater than a preset speed, the combined instrument no longer prompts that the vehicle is tilted.

2. The instrument for display control based on ECAS as claimed in claim 1, characterized in that: In the height display strategy, the instrument cluster periodically calculates an average value of the height of the left side of the vehicle body and an average value of the height of the right side of the vehicle body, so as to periodically refresh the average value of the height of the left side of the vehicle body and the average value of the height of the right side of the vehicle body on the instrument cluster.

3. The instrument for display control based on ECAS as claimed in claim 1, characterized in that: The axle load information display strategy is as follows: The combined instrument reads the axle load value in the air suspension system data, and displays the read axle load value on the combined instrument.

4. The instrument for display control based on ECAS as claimed in claim 3, characterized in that: In the axle load information display strategy, the axle load value is rounded and displayed on the instrument cluster, and the instrument cluster periodically reads the axle load value in the air suspension system data to periodically refresh the axle load value display on the instrument cluster.

5. The instrument for display control based on ECAS as claimed in claim 1, characterized in that: The specific strategy for displaying the air pressure value is as follows: The combined instrument reads and calculates the left and right airbag pressure values ​​in the air suspension system data to obtain an average value of the left airbag pressure value and an average value of the right airbag pressure value, and displays the calculated average value of the left airbag pressure value and the average value of the right airbag pressure value on the combined instrument.

6. The instrument for display control based on ECAS as claimed in claim 5, characterized in that: In the air pressure value display strategy, the instrument cluster periodically reads the average value of the left airbag pressure value and the average value of the right airbag pressure value in the air suspension system data, so as to periodically refresh the average value of the left airbag pressure value and the average value of the right airbag pressure value on the instrument cluster.

7. The instrument for display control based on ECAS as claimed in claim 1, characterized in that: For the instrument display strategy, specifically: The instrument cluster reads a message in the air suspension system data, determines the working state of the ECAS system according to the read message, and based on the obtained working state of the ECAS system: When the ECAS system is in working state, the combined instrument displays the ECAS information interface; When the ECAS system is in an inoperative state and the duration of the inoperative state is greater than a preset time, the instrument cluster returns to a default interface.

8. The instrument for display control based on ECAS as claimed in claim 7, characterized in that: The instrument cluster is controlled by buttons arranged on the steering wheel to adjust the display interface of the instrument cluster to switch between different interfaces.

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