An IVI-based NSC automatic desulfurization instrument display method, storage medium and device

Abstract

The present invention discloses an IVI (In-Vehicle Infotainment)-based NSC (NOx Storage Catalyst System) automatic desulfurization instrument display method, storage medium, and device. The method includes the following steps: an IVI host determines whether the NSC is faulty and whether the sulfur content is within a normal level based on the NSC's own status information and sulfur content information; when it is determined that the sulfur content deviates from the normal level, the IVI host sends a desulfurization request command to an engine controller and sends corresponding sulfur content level status information to an IC (In-Vehicle Instrument System); after receiving the sulfur content level status information, the IC generates a corresponding warning message; the driver adjusts the vehicle's driving state based on the failure reason text reminder display information generated by the IC, so that the vehicle's driving state meets the conditions for the NSC to perform desulfurization. The present invention monitors the sulfur content status in real time, guides and reminds the driver to adjust the vehicle's driving state in a timely manner when the sulfur content is too high, and cooperates with the NSC to perform desulfurization, thereby reducing the engine's failure rate.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile exhaust treatment, and in particular to an IVI-based NSC automatic desulfurization instrument display method, storage medium and equipment. Background Art

[0002] NSC refers to the NOx Storage Catalyst System, which primarily utilizes BaCO3 stored within the system to convert nitrogen oxides (NOx) in vehicle exhaust into harmless nitrogen, significantly reducing NOx emissions. Diesel vehicle exhaust contains a certain amount of SO2, which converts the active ingredient BaSO3 within the NSC into BaSO4, reducing the NSC's ability to convert NOx. The vehicle itself periodically converts BaSO4 back into BaSO3 (DeSOx, or desulfurization). However, desulfurization (DeSOx) is difficult to achieve in certain driving conditions, such as low speed and low load, or when the accelerator is pressed or released suddenly. Long-term accumulation of this can lead to excessive vehicle emissions and atmospheric pollution, which is inconsistent with current energy conservation and emission reduction concepts.

[0003] Therefore, it is necessary to design a suitable desulfurization strategy to remind the driver to adjust the vehicle's driving status in time under driving conditions such as low speed and low load, and sudden accelerator application and release. Summary of the Invention

[0004] To this end, the present invention provides an IVI-based NSC automatic desulfurization instrument display method, storage medium, and device, which aims to monitor the sulfur content status in real time, guide and remind the driver when the sulfur content is too high, and help the NSC perform desulfurization actions in a timely manner, thereby improving the efficiency of the NSC in removing nitrogen oxides from automobile exhaust and greatly reducing nitrogen oxide emissions.

[0005] According to a first aspect of the present invention, a method for displaying an NSC automatic desulfurization instrument based on IVI is provided, the method specifically comprising:

[0006] The NSC sends its own status information and sulfur content information to the engine controller via the CAN bus. The engine controller then feeds back the corresponding information to the IVI host via the CAN bus. The IVI host determines whether the NSC is faulty and whether the sulfur content is within the normal level.

[0007] When it is determined that there is a fault in the NSC, the IVI host sends the corresponding maintenance reminder request information to the IC via the CAN bus. After receiving the maintenance reminder request information, the IC will display the corresponding fault maintenance text reminder;

[0008] When it is determined that the sulfur content deviates from the normal level, the IVI host sends a desulfurization request command to the engine controller and sends the corresponding sulfur content level status information to the IC. After receiving the sulfur content level status information, the IC will issue a corresponding warning message. The engine controller determines whether the execution conditions are met and controls the NSC to perform the desulfurization action if the conditions are met. If not, the reason is fed back to the IVI host. The IVI host sends a text reminder request message to the IC. After receiving it, the IC will display the corresponding failure reason text reminder.

[0009] As can be seen from the above technical solution, when the sulfur content is too high, the IC issues a warning message to help the driver promptly understand the sulfur content status of the NSC. At the same time, the IC can also display a text reminder of the reason why the NSC failed to perform desulfurization, so that the driver can promptly obtain relevant information.

[0010] A further solution is that after the "if not, the reason is fed back to the IVI host, the IVI host sends a text reminder request message to the IC, and the IC makes a corresponding text reminder display of the failure reason after receiving it" it also includes: the driver adjusts the vehicle driving state according to the corresponding text reminder display information of the failure reason, so that the vehicle driving state meets the conditions for NSC to perform desulfurization action.

[0011] It can be seen from the above technical solution that when NSC fails to perform desulfurization, the driver can adjust the vehicle driving status in time according to the text reminder display made by the IC to avoid the vehicle driving status failing to meet the desulfurization requirements for a long time.

[0012] A further solution is that the sulfur content level status information specifically includes the sulfur content being in a relatively low state, the sulfur content being in a relatively high state, and the sulfur content being in an extremely high state.

[0013] A further solution is that the IC generates corresponding warning information after receiving the sulfur content level status information, specifically including:

[0014] When the sulfur content is high, the IC will light up with a yellow fault light; when the sulfur content is extremely high, the IC will light up with a red fault light.

[0015] A further solution is that the IC generates corresponding warning information after receiving the sulfur content level status information, further comprising:

[0016] When the sulfur content drops from an ultra-high state to a relatively high state, the red fault light of the IC turns into a yellow fault light; when the sulfur content drops from a relatively high state to a relatively low state, the yellow fault light of the IC disappears.

[0017] A further solution is that the engine controller determines whether an execution condition is met, and if the condition is met, the engine controller controls the NSC to perform the desulfurization action, specifically including:

[0018] The engine controller determines whether the NSC operating status and vehicle driving status meet the desulfurization requirements. If so, the engine controller issues a command to control the NSC to perform the desulfurization action.

[0019] A further solution is that the NSC's own status information specifically includes but is not limited to the NSC aging coefficient, the NSC oxygen content correction coefficient and the NSC regeneration times.

[0020] According to a second aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored. When the program is executed by a processor, the IVI-based NSC automatic desulfurization instrument display method as described above is implemented.

[0021] According to a third aspect of the present invention, a data processing device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the IVI-based NSC automatic desulfurization instrument display method as described above is implemented.

[0022] According to a fourth aspect of the present invention, there is provided a data processing device comprising the computer-readable storage medium according to the second aspect of the present invention.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the engine controller of the present invention sends NSC status information, sulfur content information and information related to the reason for desulfurization failure to the IVI host through internal logic judgment. The IVI host then judges whether the NSC information is in a fault state and classifies the sulfur content level status information and monitors the feedback of the execution failure reason based on the internal logic, and sends the corresponding fault maintenance text reminder display, sulfur content level status information and IC text reminder request information to the IC, so that the IC can make corresponding light warning information and text reminder display, thereby facilitating the driver to adjust the vehicle driving status and repair the NSC in a timely manner, which is beneficial to improving the efficiency of the NSC in removing nitrogen oxides from automobile exhaust, greatly reducing nitrogen oxide emissions, and complying with the concept of energy conservation and emission reduction.

[0024] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1It is a flowchart of the present invention;

[0027] Figure 2 is a system block diagram of the present invention; DETAILED DESCRIPTION

[0028] In order to make the objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] See also Figure 1 According to the first aspect of the present invention, a method for displaying an NSC automatic desulfurization instrument based on IVI is shown, which specifically includes:

[0032] In step S100, the EMS (Engine Controller) sends NSC (NOx Storage Catalyst System) related status information to the IVI host (In-Vehicle Infotainment System). The related status information includes the NSC aging coefficient, the NSC oxygen correction coefficient, and the number of NSC regenerations.

[0033] Step S101: The IVI host determines whether the NSC is faulty based on internal logic. If the NSC is operating normally, no operation is performed. If not, if the IVI determines that the NSC aging coefficient is too large and exceeds the limit value or the number of NSC regenerations exceeds the limit value, a maintenance reminder request message is sent to the IC (vehicle instrument system) and then step S102 is executed.

[0034] Step S102: The IC displays a corresponding text reminder for fault repair, such as a pop-up window on the instrument panel prompting the user to "Please replace the NSC catalyst."

[0035] Step S103: The EMS (Engine Controller) sends the NSC (NOx Storage Catalyst System) sulfur content information to the IVI host (In-Vehicle Infotainment System).

[0036] Step S104 : The IVI host determines whether the sulfur content is at a normal level and sends corresponding sulfur content level status information to the IC.

[0037] Specifically, based on the relationship between the sulfur content and the set value, the sulfur content is respectively determined to be at a low level, a high level and an ultra-high level. When the sulfur content value is lower than 0.8g, it is at a low level; when the sulfur content value is between 0.8g and 3g, it is at a high level; and when the sulfur content value is greater than or equal to 3g, it is an ultra-high value.

[0038] Step S105: The IVI host determines whether to send a desulfurization request to the EMS based on the sulfur content level.

[0039] Specifically, when the sulfur content is at a low level, no operation is performed; when the sulfur content is at a high level or an ultra-high level, the IVI host sends a desulfurization request command to the EMS.

[0040] Step S106: After receiving the sulfur content level status information, the IC generates a corresponding warning message.

[0041] Specifically, when the sulfur content is on the low side, the IC does not perform any display or warning. When the sulfur content is on the high side, the IC displays a yellow fault light; when the sulfur content is on the ultra-high level, the IC displays a red fault light. It should be noted that when the sulfur content drops from the ultra-high state to the high state, the IC's red fault light turns into a yellow fault light; when the sulfur content drops from the high state to the low state, the IC's yellow fault light disappears and the IC fault light warning reminder stops.

[0042] Step S107: EMS determines whether desulfurization conditions are met;

[0043] Specifically, the EMS determines whether the NSC operating state and the vehicle driving state meet the desulfurization requirements. If so, the EMS issues a command to control the NSC to perform the desulfurization action. If not, step S108 is executed.

[0044] Step S108: The EMS feeds back the execution failure reason to the IVI, and the IVI host sends a text reminder request message to the IC.

[0045] Step S109: The IC displays a corresponding text reminder of the failure reason.

[0046] Step S110: Adjust the vehicle driving state.

[0047] Specifically, the driver adjusts the vehicle's driving state according to the corresponding failure reason text reminder display information, so that the vehicle's driving state meets the conditions for NSC to perform desulfurization action.

[0048] It should be noted that, see Figure 2The automobile engine controller, on-board infotainment system and vehicle instrument system communicate with each other through the CAN bus, and the signal transmission is stable.

[0049] Example 1 of application scenario of the present invention

[0050] After the vehicle is powered on, the IVI host detects high sulfur levels and sends a "high" sulfur severity status. When the IC detects this, a yellow fault light illuminates on the instrument panel. The IVI host then sends the NSC a desulfurization request. The engine controller detects this command and determines that the engine is not currently running. The engine controller indicates that the conditions are not met, and the IVI sends a corresponding text message to the bus: "Please operate the vehicle and maintain the throttle as steady as possible." The IC module receives the IVI text message and displays "Please operate the vehicle and maintain the throttle as steady as possible" on the instrument panel for three seconds. The driver sees this and adjusts the vehicle's operating status. When the conditions are met, the engine controller controls the NSC to perform desulfurization. When the IVI detects that the sulfur level has dropped to "low," the yellow fault light disappears, and the IVI stops sending desulfurization request commands.

[0051] Example 2 of application scenario of the present invention

[0052] While driving on a road with frequent red lights, the IVI host monitors the sulfur content at an extremely high level. The IVI transmits a "very high" sulfur severity level. Upon detecting this, the IC illuminates a red fault light on the instrument panel. The IVI host then sends the NSC a desulfurization request. Upon receiving the command, the engine controller determines that the current state is "frequent shifting," and that the NSC does not meet the conditions for desulfurization. The IVI sends a corresponding text reminder to the bus, "Please drive on roads with fewer traffic lights (do not shift frequently)." Upon receiving the IVI reminder, the IC displays the message "Please drive on roads with fewer traffic lights (do not shift frequently)" on the instrument panel for three seconds. Upon seeing this, the driver promptly adjusts the vehicle's operating state. When the conditions are met, the engine controller instructs the NSC to perform desulfurization. After IVI monitors that the sulfur content level has dropped to a "high" state, the instrument's fault light changes from red to a bright yellow fault light. After the desulfurization function is executed for a period of time, IVI monitors that the sulfur content level has dropped to a "low" state, the instrument's yellow fault light disappears, and IVI also stops sending desulfurization request commands.

[0053] Example 3 of application scenario of the present invention

[0054] After power-up, the IVI host monitors the engine controller's NSC-related system status. When the NSC aging coefficient reaches the aging limit, the IVI sends a text message requesting repair. The instrument panel receives a repair suggestion and displays "Please replace the NSC catalyst promptly." After the replacement is complete and the NSC aging coefficient status is updated, the text message will no longer pop up.

[0055] According to a second aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored. When the program is executed by a processor, the IVI-based NSC automatic desulfurization instrument display method as described above is implemented.

[0056] According to a third aspect of the present invention, a data processing device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the IVI-based NSC automatic desulfurization instrument display method as described above is implemented.

[0057] According to a fourth aspect of the present invention, there is provided a data processing device comprising the computer-readable storage medium according to the second aspect of the present invention.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation to the invention.

[0059] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0060] Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification does not necessarily mean that they are all the same embodiments, nor are they independent or alternative embodiments that are mutually exclusive with other embodiments. It can be understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0061] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A NSC automatic desulfurization instrument display method based on IVI, characterized in that: The method specifically includes: The NSC sends its own status information and sulfur content information to the engine controller via the CAN bus. The engine controller then feeds back the corresponding information to the IVI host via the CAN bus. The IVI host determines whether the NSC is faulty and whether the sulfur content is within the normal level. When it is determined that there is a fault in the NSC, the IVI host sends the corresponding maintenance reminder request information to the IC via the CAN bus. After receiving the maintenance reminder request information, the IC will display the corresponding fault maintenance text reminder; When it is determined that the sulfur content deviates from the normal level, the IVI host sends a desulfurization request command to the engine controller and sends the corresponding sulfur content level status information to the IC. The sulfur content level status information specifically includes sulfur content being in a low state, sulfur content being in a high state, and sulfur content being in an ultra-high state. When the sulfur content value is less than 0.8g, it is a low level; when the sulfur content value is between 0.8g and 3g, it is a high state; and when the sulfur content value is greater than or equal to 3g, it is an ultra-high value; After receiving the sulfur content level status information, the IC generates a corresponding warning message. The engine controller determines whether the execution conditions are met. If so, it controls the NSC to perform the desulfurization action. If not, it feeds back the reason to the IVI host. The IVI host sends a text reminder request message to the IC. After receiving it, the IC displays a corresponding text reminder of the failure reason. The driver adjusts the vehicle driving state according to the corresponding text reminder of the failure reason to make the vehicle driving state meet the conditions for the NSC to perform the desulfurization action. The engine controller determines whether the execution conditions are met, and controlling the NSC to perform the desulfurization action specifically includes: the engine controller determines whether the NSC operating state and the vehicle driving state meet the desulfurization requirements. If the requirements are met, the engine controller issues an instruction to control the NSC to perform the desulfurization action.

2. The IVI-based NSC automatic desulfurization instrument display method according to claim 1, characterized in that: After receiving the sulfur content level status information, the IC generates corresponding warning information, specifically including: When the sulfur content is high, the IC will light up with a yellow fault light; when the sulfur content is extremely high, the IC will light up with a red fault light.

3. The IVI-based NSC automatic desulfurization instrument display method according to claim 2, characterized in that: The IC also generates corresponding warning information after receiving the sulfur content level status information: When the sulfur content drops from an ultra-high state to a relatively high state, the red fault light of the IC turns into a yellow fault light; when the sulfur content drops from a relatively high state to a relatively low state, the yellow fault light of the IC disappears.

4. The IVI-based NSC automatic desulfurization instrument display method according to claim 1, characterized in that: The NSC's own status information specifically includes the NSC aging coefficient, the NSC oxygen content correction coefficient, and the NSC regeneration times.

5. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the IVI-based NSC automatic desulfurization instrument display method according to any one of claims 1 to 4 is implemented.

6. A data processing device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the IVI-based NSC automatic desulfurization instrument display method according to any one of claims 1 to 4 is implemented.

7. A data processing device comprising the computer-readable storage medium according to claim 5.

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