Heating performance evaluation method, device, equipment and storage medium

Abstract

This application relates to the technical field of heating performance evaluation and discloses a heating performance evaluation method, apparatus, device, and storage medium. The method comprises: estimating the heating temperature of a rear oxygen sensor to obtain an estimated heating temperature; obtaining an operating voltage of the rear oxygen sensor and determining a reference heating temperature based on the operating voltage; determining the actual heating temperature of the rear oxygen sensor based on the estimated heating temperature and the reference heating temperature; and evaluating the heating performance of the rear oxygen sensor based on the actual heating temperature to obtain an evaluation result. This application can effectively improve the accuracy of heating performance evaluation.

Description

Technical Field

[0001] The present application relates to the technical field of heating performance evaluation, and in particular to a heating performance evaluation method, device, equipment and storage medium. Background Art

[0002] Rear oxygen sensors measure the oxygen content in engine exhaust and are widely used in automotive engine emission control systems. Oxygen sensor heaters typically utilize a resistor to generate eddy currents. In harsh installation environments, these heaters provide a stable heating source to the oxygen sensor, allowing it to quickly reach operating temperature and improving its accuracy and stability. However, evaluating rear oxygen heating performance remains a challenging issue, and current methods for evaluating rear oxygen heating performance are inaccurate.

[0003] Therefore, how to effectively improve the accuracy of heating performance evaluation is a problem that needs to be solved urgently.

[0004] The above content is only used to assist in understanding the technical solution of this application and does not constitute an admission that the above content is prior art. Summary of the Invention

[0005] The main purpose of this application is to provide a heating performance evaluation method, device, equipment and storage medium, aiming to solve the technical problem of how to effectively improve the accuracy of heating performance evaluation.

[0006] To achieve the above objectives, the present application proposes a heating performance evaluation method, which comprises:

[0007] estimating a heating temperature of the rear oxygen sensor to obtain an estimated heating temperature;

[0008] obtaining an operating voltage of the rear oxygen sensor, and determining a reference heating temperature based on the operating voltage;

[0009] determining an actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature;

[0010] A heating performance evaluation is performed on the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result.

[0011] In one embodiment, estimating the heating temperature of the rear oxygen sensor to obtain the estimated heating temperature includes:

[0012] estimating a heating temperature of the rear oxygen sensor to obtain an initial temperature;

[0013] Obtaining different intake manifold temperatures and different outlet manifold temperatures;

[0014] The initial temperature is corrected based on the different intake manifold temperatures and the different outlet manifold temperatures to obtain an estimated heating temperature.

[0015] In one embodiment, the correcting the initial temperature based on the different intake manifold temperatures and the different outlet manifold temperatures to obtain the estimated heating temperature includes:

[0016] determining a first correction parameter based on the different intake manifold temperatures;

[0017] determining a second correction parameter based on the different outlet manifold temperatures;

[0018] The initial temperature is corrected according to the first correction parameter and the second correction parameter to obtain an estimated heating temperature.

[0019] In one embodiment, the obtaining of the operating voltage of the rear oxygen sensor and determining the reference heating temperature based on the operating voltage includes:

[0020] Get the working voltage of the rear oxygen sensor;

[0021] determining an internal resistance of the rear oxygen sensor according to an operating voltage of the rear oxygen sensor;

[0022] An internal resistance-temperature relationship curve is queried according to the internal resistance of the rear oxygen sensor to obtain a reference heating temperature.

[0023] In one embodiment, determining the actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature includes:

[0024] comparing the estimated heating temperature with the reference heating temperature to obtain a first comparison result;

[0025] When the first comparison result shows that the reference heating temperature is greater than the estimated heating temperature, using the reference heating temperature as the actual heating temperature of the rear oxygen sensor;

[0026] When the first comparison result is that the estimated heating temperature is greater than the reference heating temperature, the estimated heating temperature is used as the actual heating temperature of the rear oxygen sensor.

[0027] In one embodiment, the performing heating performance evaluation on the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result includes:

[0028] Comparing the actual heating temperature with a preset temperature threshold to obtain a second comparison result;

[0029] A heating performance evaluation is performed on the rear oxygen sensor according to the second comparison result to obtain an evaluation result.

[0030] In one embodiment, the performing heating performance evaluation on the rear oxygen sensor according to the second comparison result to obtain the evaluation result includes:

[0031] When the second comparison result is that the actual heating temperature is greater than the preset temperature threshold, determining that the evaluation result is that the heating performance of the rear oxygen sensor meets the requirement;

[0032] When the second comparison result is that the actual heating temperature is less than or equal to the preset temperature threshold, it is determined that the evaluation result is that the heating performance of the rear oxygen sensor does not meet the requirement.

[0033] In addition, to achieve the above objectives, the present application also proposes a heating performance evaluation device, which includes:

[0034] An estimation module, used for estimating the heating temperature of the rear oxygen sensor to obtain an estimated heating temperature;

[0035] an acquisition module, configured to acquire an operating voltage of the rear oxygen sensor and determine a reference heating temperature based on the operating voltage;

[0036] a determination module, configured to determine an actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature;

[0037] An evaluation module is used to evaluate the heating performance of the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result.

[0038] In addition, to achieve the above-mentioned purpose, the present application also proposes a heating performance evaluation device, which includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program is configured to implement the steps of the heating performance evaluation method as described above.

[0039] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium. A computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of the heating performance evaluation method described above are implemented.

[0040] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps of the heating performance evaluation method described above are implemented.

[0041] The present application provides a heating performance evaluation method, which first estimates the heating temperature of a rear oxygen sensor to obtain an estimated heating temperature; obtains the operating voltage of the rear oxygen sensor and determines a reference heating temperature based on the operating voltage; determines the actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature; and evaluates the heating performance of the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result, thereby effectively improving the accuracy of the heating performance evaluation.

[0042] In summary, the present application determines the actual heating temperature of the rear oxygen sensor based on the estimated heating temperature and the reference heating temperature, and then evaluates the heating performance of the rear oxygen sensor, thereby overcoming the technical defect of low accuracy in the evaluation of the rear oxygen heating performance, and can effectively improve the accuracy of the heating performance evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0045] Figure 1 A schematic diagram of a process flow provided for Example 1 of the heating performance evaluation method of this application;

[0046] Figure 2 A schematic diagram of a flow chart provided for Example 2 of the heating performance evaluation method of this application;

[0047] Figure 3 This is a schematic diagram of the module structure of the heating performance evaluation device according to an embodiment of the present application;

[0048] Figure 4 Schematic diagram of the device structure of the hardware operating environment involved in the heating performance evaluation method in the embodiment of the present application.

[0049] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0050] It should be understood that the specific embodiments described herein are merely used to explain the technical solutions of the present application and are not intended to limit the present application.

[0051] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0052] The main solution of the embodiment of the present application is: estimating the heating temperature of the rear oxygen sensor to obtain an estimated heating temperature; obtaining the operating voltage of the rear oxygen sensor and determining a reference heating temperature based on the operating voltage; determining the actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature; and evaluating the heating performance of the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result.

[0053] Rear oxygen sensors measure the oxygen content in engine exhaust and are widely used in automotive engine emission control systems. Oxygen sensor heaters typically utilize the principle of eddy currents generated by a resistor. In harsh installation environments, these heaters provide a stable heating source to the oxygen sensor, allowing it to quickly reach operating temperature and improving its accuracy and stability. However, determining the performance of rear oxygen heating is a challenging issue, and current methods for evaluating rear oxygen heating performance are inaccurate. Therefore, effectively improving the accuracy of heating performance evaluation is a pressing issue.

[0054] This application determines the actual heating temperature of the rear oxygen sensor based on the estimated heating temperature and the reference heating temperature, and then evaluates the heating performance of the rear oxygen sensor, thereby overcoming the technical defect of low accuracy in the evaluation of the rear oxygen heating performance and effectively improving the accuracy of the heating performance evaluation.

[0055] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, mobile phone, etc., or an electronic device capable of performing the above functions, a heating performance evaluation device, etc. The following uses the heating performance evaluation device as an example to illustrate this embodiment and the following embodiments.

[0056] Based on this, the embodiment of the present application provides a heating performance evaluation method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the heating performance evaluation method of the present application.

[0057] In this embodiment, the heating performance evaluation method includes steps S10 to S40:

[0058] In step S10 , the heating temperature of the rear oxygen sensor is estimated to obtain an estimated heating temperature.

[0059] It should be noted that the estimated heating temperature can be obtained in a variety of ways. For example, it can be pre-calculated and set based on factors such as the model, specifications, and working environment of the rear oxygen sensor.

[0060] It is understood that by analyzing the physical and thermal properties of the rear oxygen sensor, a heating temperature estimation model can be established, and then an estimated calculation can be performed based on the model. The estimated initial temperature can be corrected and optimized to improve the accuracy of the estimated heating temperature.

[0061] Step S20 : ​​obtaining the operating voltage of the rear oxygen sensor, and determining a reference heating temperature based on the operating voltage.

[0062] It should be noted that the operating voltage is the voltage required for the rear oxygen sensor to operate normally. It can be collected or read in real time based on the sensor's operating status. The corresponding reference heating temperature can be calculated based on the operating voltage and the electrical characteristics of the rear oxygen sensor.

[0063] In a specific implementation, the reference heating temperature may be determined by using a known correspondence or mapping relationship between the operating voltage of the rear oxygen sensor and the heating temperature, such as by lookup or interpolation calculation.

[0064] In a feasible implementation, step S20 may include: obtaining an operating voltage of the rear oxygen sensor; determining an internal resistance of the rear oxygen sensor based on the operating voltage of the rear oxygen sensor; and querying an internal resistance-temperature relationship curve based on the internal resistance of the rear oxygen sensor to obtain a reference heating temperature.

[0065] It should be noted that the internal resistance-temperature relationship curve is a curve that describes the relationship between the internal resistance of the rear oxygen sensor and the temperature. The curve can be obtained through experiments or theoretical calculations and is used to find the corresponding temperature value based on the internal resistance value.

[0066] In the specific implementation, the rear oxygen sensor has a measuring voltage sensor that can test the working voltage of the sensor. The internal resistance of the rear oxygen sensor can be inversely calculated through the voltage formula, and the current heating temperature of the rear oxygen, that is, the reference heating temperature, can be determined based on the relationship curve between the internal resistance and temperature.

[0067] Step S30 : determining the actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature.

[0068] It should be noted that the actual heating temperature is the actual heating temperature of the rear oxygen sensor during actual operation. By comprehensively considering the estimated heating temperature and the reference heating temperature, a more accurate estimation of the actual heating temperature of the rear oxygen sensor can be made.

[0069] In a feasible embodiment, step S30 may include: comparing the estimated heating temperature with the reference heating temperature to obtain a first comparison result; when the first comparison result is that the reference heating temperature is greater than the estimated heating temperature, using the reference heating temperature as the actual heating temperature of the rear oxygen sensor; when the first comparison result is that the estimated heating temperature is greater than the reference heating temperature, using the estimated heating temperature as the actual heating temperature of the rear oxygen sensor.

[0070] It should be noted that the estimated heating temperature T1 is compared with the reference heating temperature T2 corresponding to the internal resistance. When T2>T1, the actual heating temperature of the rear oxygen sensor is taken as T2. When T2<T1, the actual heating temperature of the rear oxygen sensor is taken as T1.

[0071] Step S40 , evaluating the heating performance of the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result.

[0072] It should be noted that the heating performance of the rear oxygen sensor can be quantitatively or qualitatively evaluated based on the actual heating temperature. For example, the actual heating temperature can be compared with a preset heating performance standard or threshold to determine whether the rear oxygen sensor has achieved the expected heating effect. Furthermore, the actual heating temperature data can be used to plot a heating curve and analyze performance indicators such as heating rate and stability, thereby providing a more comprehensive assessment of the heating performance of the rear oxygen sensor. This is not specifically limited in this embodiment.

[0073] In a feasible implementation, step S40 may include: comparing the actual heating temperature with a preset temperature threshold to obtain a second comparison result; and evaluating the heating performance of the rear oxygen sensor according to the second comparison result to obtain an evaluation result.

[0074] It should be noted that the preset temperature threshold may be 600° C., which is not specifically limited in this embodiment.

[0075] It is worth noting that the heating performance evaluation can also be performed by analyzing and evaluating the rear oxygen sensor's performance parameters, such as heating time, heating rate, and heating stability, to obtain a more comprehensive evaluation result. Specific evaluation means and methods can be selected and adjusted based on actual needs and are not specifically limited in this embodiment.

[0076] In a feasible embodiment, the heating performance of the rear oxygen sensor is evaluated based on the second comparison result to obtain an evaluation result, including: when the second comparison result is that the actual heating temperature is greater than the preset temperature threshold, determining that the evaluation result is that the heating performance of the rear oxygen sensor meets the requirements; when the second comparison result is that the actual heating temperature is less than or equal to the preset temperature threshold, determining that the evaluation result is that the heating performance of the rear oxygen sensor does not meet the requirements.

[0077] It should be noted that if the actual heating temperature reaches or exceeds the preset temperature threshold, it indicates that the rear oxygen sensor's heating performance is good and can meet normal operation requirements. If the actual heating temperature is lower than the preset temperature threshold, it indicates that there may be a problem with the rear oxygen sensor's heating performance and further inspection and repair are required. Therefore, by comparing the actual heating temperature with the preset temperature threshold, the rear oxygen sensor's heating performance can be easily and quickly evaluated, potential problems can be discovered in a timely manner, and the normal operation of the vehicle can be guaranteed.

[0078] This embodiment provides a heating performance evaluation method. This embodiment first estimates the heating temperature of the rear oxygen sensor to obtain an estimated heating temperature; obtains the operating voltage of the rear oxygen sensor and determines a reference heating temperature based on the operating voltage; determines the actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature; and evaluates the heating performance of the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result, which can effectively improve the accuracy of the heating performance evaluation.

[0079] In summary, this embodiment determines the actual heating temperature of the rear oxygen sensor based on the estimated heating temperature and the reference heating temperature, and then evaluates the heating performance of the rear oxygen sensor, thereby overcoming the technical defect of low accuracy in the evaluation of the rear oxygen heating performance and effectively improving the accuracy of the heating performance evaluation.

[0080] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above embodiment 1 can be referred to the above introduction and will not be described in detail later. Figure 2 , the step S10 further includes steps S101-S103:

[0081] Step S101 : estimating the heating temperature of the rear oxygen sensor to obtain an initial temperature.

[0082] It should be noted that various methods can be used to estimate the heating temperature and determine the initial temperature. These include, but are not limited to, physical models of the rear oxygen sensor, historical data, and empirical formulas. By comprehensively considering factors such as the rear oxygen sensor's material properties, operating environment, and operating voltage, it is possible to estimate the heating temperature under certain conditions. This initial temperature provides a baseline for subsequent evaluation, helping to more accurately assess the rear oxygen sensor's heating performance.

[0083] In a specific implementation, after obtaining the initial temperature, further processing and correction can be performed based on a specific algorithm or model to obtain a more accurate estimated heating temperature. This process may involve weighting, filtering, and adjusting the initial temperature to better reflect the actual heating status of the rear oxygen sensor, but this embodiment does not impose any specific limitations on this process.

[0084] Step S102 , obtaining temperatures of different intake manifolds and temperatures of different outlet manifolds.

[0085] It's important to note that the temperature of the intake and exhaust manifolds is a key factor affecting the heating performance of the rear oxygen sensor. The intake manifold temperature reflects the state of the engine's intake system, while the exhaust manifold temperature reflects the state of the engine's exhaust system. Changes in these two temperatures directly affect the operating environment of the rear oxygen sensor and, in turn, its heating performance. Using different intake and exhaust manifold temperatures allows for correction of the initial temperature.

[0086] In a specific implementation, the temperature data of the intake and exhaust manifolds can be obtained through sensors or other measuring devices. This data can be real-time and dynamic, or historical and static, depending on the evaluation requirements and actual conditions.

[0087] Step S103 : correcting the initial temperature based on the different intake manifold temperatures and the different outlet manifold temperatures to obtain an estimated heating temperature.

[0088] It should be noted that because the intake and exhaust manifold temperatures significantly affect the heating performance of the rear oxygen sensor, after obtaining the initial temperature, it is necessary to correct it based on the actual intake and exhaust manifold temperatures. By considering the impact of these temperature factors on the heating temperature, a more accurate estimate of the rear oxygen sensor's heating temperature under actual operating conditions can be achieved, which is known as the estimated heating temperature.

[0089] In a feasible embodiment, step 103 may include: determining a first correction parameter based on the temperatures of the different intake manifolds; determining a second correction parameter based on the temperatures of the different outlet manifolds; and correcting the initial temperature according to the first correction parameter and the second correction parameter to obtain an estimated heating temperature.

[0090] It should be noted that different intake manifold temperatures and different outlet manifold temperatures correspond to different correction parameters, and the initial temperature T3 can be corrected according to different intake manifold temperatures and different outlet manifold temperatures.

[0091] As shown in Table 1, Table 1 is a schematic table of different intake manifold temperatures, which includes different intake manifold temperatures and corresponding correction parameters. For example, when the intake manifold temperature is -30°C, the correction parameter is A; when the intake manifold temperature is -20°C, the correction parameter is B; when the intake manifold temperature is -10°C, the correction parameter is C, etc.

[0092] Table 1

[0093] -30℃ -20℃ -10℃ -0℃ 10℃ 20℃ 30℃ 40℃ A B C D E F G H

[0094] As shown in Table 2, Table 2 is a schematic table of different outlet manifold temperatures, which includes different outlet manifold temperatures and corresponding correction parameters. For example, when the outlet manifold temperature is -30°C, the correction parameter is a; when the outlet manifold temperature is -20°C, the correction parameter is b; when the outlet manifold temperature is -10°C, the correction parameter is c, etc.

[0095] Table 2

[0096] -30℃ -20℃ -10℃ -0℃ 10℃ 20℃ 30℃ 40℃ a b c d e f g h

[0097] It is understood that the initial temperature T3 is corrected based on the intake manifold temperature. For example, if the intake manifold temperature is -10 degrees Celsius, the correction parameter is C, and the corrected temperature = C*T3. The initial temperature T3 is also corrected based on the outlet manifold temperature. For example, if the intake manifold temperature is -20 degrees Celsius, the correction parameter is b, and the corrected temperature = b*T3. By simultaneously performing intake and outlet manifold temperature corrections on the initial temperature T3, the estimated heating temperature T1 is calculated as: C*b*T3.

[0098] In this embodiment, the estimated heating temperature is obtained by correcting the initial temperature according to different intake manifold temperatures and different outlet manifold temperatures, thereby improving the accuracy of the estimated heating temperature.

[0099] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the heating performance evaluation method of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0100] This application also provides a heating performance evaluation device, please refer to Figure 3 , the heating performance evaluation device comprises:

[0101] The estimating module 10 is used to estimate the heating temperature of the rear oxygen sensor to obtain an estimated heating temperature.

[0102] The acquisition module 20 is configured to acquire an operating voltage of the rear oxygen sensor and determine a reference heating temperature based on the operating voltage.

[0103] The determination module 30 is configured to determine an actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature.

[0104] The evaluation module 40 is configured to evaluate the heating performance of the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result.

[0105] This embodiment provides a heating performance evaluation device, which first estimates the heating temperature of the rear oxygen sensor to obtain an estimated heating temperature; obtains the operating voltage of the rear oxygen sensor and determines a reference heating temperature based on the operating voltage; determines the actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature; and evaluates the heating performance of the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result, which can effectively improve the accuracy of the heating performance evaluation.

[0106] In summary, this embodiment determines the actual heating temperature of the rear oxygen sensor based on the estimated heating temperature and the reference heating temperature, and then evaluates the heating performance of the rear oxygen sensor, thereby overcoming the technical defect of low accuracy in the evaluation of the rear oxygen heating performance and effectively improving the accuracy of the heating performance evaluation.

[0107] Optionally, the estimation module 10 is also used to estimate the heating temperature of the rear oxygen sensor to obtain an initial temperature; obtain different intake manifold temperatures and different outlet manifold temperatures; and correct the initial temperature based on the different intake manifold temperatures and the different outlet manifold temperatures to obtain an estimated heating temperature.

[0108] Optionally, the estimation module 10 is further used to determine a first correction parameter based on the temperatures of the different intake manifolds; determine a second correction parameter based on the temperatures of the different outlet manifolds; and correct the initial temperature according to the first correction parameter and the second correction parameter to obtain an estimated heating temperature.

[0109] Optionally, the acquisition module 20 is further configured to acquire an operating voltage of a rear oxygen sensor; determine an internal resistance of the rear oxygen sensor according to the operating voltage of the rear oxygen sensor; and query an internal resistance-temperature relationship curve according to the internal resistance of the rear oxygen sensor to obtain a reference heating temperature.

[0110] Optionally, the determination module 30 is further used to compare the estimated heating temperature with the reference heating temperature to obtain a first comparison result; when the first comparison result is that the reference heating temperature is greater than the estimated heating temperature, the reference heating temperature is used as the actual heating temperature of the rear oxygen sensor; when the first comparison result is that the estimated heating temperature is greater than the reference heating temperature, the estimated heating temperature is used as the actual heating temperature of the rear oxygen sensor.

[0111] Optionally, the evaluation module 40 is further configured to compare the actual heating temperature with a preset temperature threshold to obtain a second comparison result; and perform heating performance evaluation on the rear oxygen sensor according to the second comparison result to obtain an evaluation result.

[0112] Optionally, the evaluation module 40 is further used to determine that the evaluation result is that the heating performance of the rear oxygen sensor meets the requirements when the second comparison result is that the actual heating temperature is greater than the preset temperature threshold; and to determine that the evaluation result is that the heating performance of the rear oxygen sensor does not meet the requirements when the second comparison result is that the actual heating temperature is less than or equal to the preset temperature threshold.

[0113] The heating performance evaluation device provided in this application, employing the heating performance evaluation method described in the aforementioned embodiment, can address the technical problem of effectively improving the accuracy of heating performance evaluation. Compared to the prior art, the beneficial effects of the heating performance evaluation device provided in this application are the same as those of the heating performance evaluation method described in the aforementioned embodiment. Other technical features of the heating performance evaluation device are the same as those disclosed in the aforementioned embodiment and are not further elaborated here.

[0114] The present application provides a heating performance evaluation device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the heating performance evaluation method in the above-mentioned embodiment one.

[0115] Reference below Figure 4, which shows a schematic diagram of the structure of a heating performance evaluation device suitable for implementing the embodiments of the present application. The heating performance evaluation device in the embodiments of the present application may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (such as in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 4 The heating performance evaluation device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0116] like Figure 4 As shown, the heating performance evaluation device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes based on programs stored in a read-only memory (ROM) 1002 or programs loaded from a storage device 1003 into a random access memory (RAM) 1004. RAM 1004 also stores various programs and data required for the operation of the heating performance evaluation device. The processing device 1001, ROM 1002, and RAM 1004 are connected to each other via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the heating performance evaluation device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a heating performance evaluation device with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems can be implemented or have alternatively.

[0117] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments disclosed in the present application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program comprising program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0118] The heating performance evaluation device provided in this application, employing the heating performance evaluation method described in the aforementioned embodiment, can address the technical problem of effectively improving the accuracy of heating performance evaluation. Compared to the prior art, the beneficial effects of the heating performance evaluation device provided in this application are the same as those of the heating performance evaluation method described in the aforementioned embodiment. Other technical features of the heating performance evaluation device are the same as those disclosed in the aforementioned embodiment and are not further elaborated here.

[0119] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0120] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0121] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer program) stored thereon, and the computer-readable program instructions are used to execute the heating performance evaluation method in the above embodiment.

[0122] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: 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 thereof. In this embodiment, the computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0123] The computer-readable storage medium may be included in the heating performance evaluation device, or may exist independently without being assembled into the heating performance evaluation device.

[0124] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the heating performance evaluation device, the heating performance evaluation device is enabled to: estimate the heating temperature of the rear oxygen sensor to obtain the estimated heating temperature; obtain the operating voltage of the rear oxygen sensor and determine the reference heating temperature based on the operating voltage; determine the actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature; and evaluate the heating performance of the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result.

[0125] Computer program code for performing the operations of the present application 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 stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or server. In cases involving 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., through the Internet using an Internet service provider).

[0126] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, program segment or a part of code, and the module, program segment or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by a combination of dedicated hardware and computer instructions.

[0127] The modules described in the embodiments of the present application may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0128] The computer-readable storage medium provided in this application stores computer-readable program instructions (i.e., a computer program) for executing the aforementioned heating performance evaluation method. This computer-readable storage medium can address the technical problem of effectively improving the accuracy of heating performance evaluation. Compared to the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the heating performance evaluation method provided in the aforementioned embodiment, and are not further elaborated here.

[0129] The present application also provides a computer program product, comprising a computer program, which implements the steps of the above-mentioned heating performance evaluation method when executed by a processor.

[0130] The computer program product provided in this application can solve the technical problem of how to effectively improve the accuracy of heating performance evaluation. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the heating performance evaluation method provided in the above embodiment, and will not be elaborated here.

[0131] The above description is only part of the embodiments of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A heating performance evaluation method, characterized in that: The method comprises: estimating a heating temperature of the rear oxygen sensor to obtain an estimated heating temperature; obtaining an operating voltage of the rear oxygen sensor, and determining a reference heating temperature based on the operating voltage; determining an actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature; performing a heating performance evaluation on the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result; The determining the actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature includes: comparing the estimated heating temperature with the reference heating temperature to obtain a first comparison result; When the first comparison result shows that the reference heating temperature is greater than the estimated heating temperature, using the reference heating temperature as the actual heating temperature of the rear oxygen sensor; When the first comparison result is that the estimated heating temperature is greater than the reference heating temperature, the estimated heating temperature is used as the actual heating temperature of the rear oxygen sensor.

2. The method according to claim 1, wherein The estimating the heating temperature of the rear oxygen sensor to obtain the estimated heating temperature includes: estimating a heating temperature of the rear oxygen sensor to obtain an initial temperature; Obtaining different intake manifold temperatures and different outlet manifold temperatures; The initial temperature is corrected based on the different intake manifold temperatures and the different outlet manifold temperatures to obtain an estimated heating temperature.

3. The method according to claim 2, wherein The correcting the initial temperature based on the different intake manifold temperatures and the different outlet manifold temperatures to obtain the estimated heating temperature includes: determining a first correction parameter based on the different intake manifold temperatures; determining a second correction parameter based on the different outlet manifold temperatures; The initial temperature is corrected according to the first correction parameter and the second correction parameter to obtain an estimated heating temperature.

4. The method according to claim 1, wherein The obtaining of the operating voltage of the rear oxygen sensor and determining the reference heating temperature based on the operating voltage include: Get the working voltage of the rear oxygen sensor; determining an internal resistance of the rear oxygen sensor according to an operating voltage of the rear oxygen sensor; An internal resistance-temperature relationship curve is queried according to the internal resistance of the rear oxygen sensor to obtain a reference heating temperature.

5. The method according to claim 1, wherein The performing heating performance evaluation on the rear oxygen sensor according to the actual heating temperature to obtain an evaluation result includes: Comparing the actual heating temperature with a preset temperature threshold to obtain a second comparison result; A heating performance evaluation is performed on the rear oxygen sensor according to the second comparison result to obtain an evaluation result.

6. The method according to claim 5, wherein The performing heating performance evaluation on the rear oxygen sensor according to the second comparison result to obtain an evaluation result includes: When the second comparison result is that the actual heating temperature is greater than the preset temperature threshold, determining that the evaluation result is that the heating performance of the rear oxygen sensor meets the requirement; When the second comparison result is that the actual heating temperature is less than or equal to the preset temperature threshold, it is determined that the evaluation result is that the heating performance of the rear oxygen sensor does not meet the requirement.

7. A heating performance evaluation device, characterized in that: The heating performance evaluation device comprises: An estimation module, used for estimating the heating temperature of the rear oxygen sensor to obtain an estimated heating temperature; an acquisition module, configured to acquire an operating voltage of the rear oxygen sensor and determine a reference heating temperature based on the operating voltage; a determination module, configured to determine an actual heating temperature of the rear oxygen sensor according to the estimated heating temperature and the reference heating temperature; an evaluation module, configured to evaluate the heating performance of the rear oxygen sensor according to the actual heating temperature and obtain an evaluation result; The determination module is further configured to compare the estimated heating temperature with the reference heating temperature to obtain a first comparison result; when the first comparison result is that the reference heating temperature is greater than the estimated heating temperature, the reference heating temperature is used as the actual heating temperature of the rear oxygen sensor; when the first comparison result is that the estimated heating temperature is greater than the reference heating temperature, the estimated heating temperature is used as the actual heating temperature of the rear oxygen sensor.

8. A heating performance evaluation device, characterized in that The heating performance evaluation device includes: a memory, a processor, and a heating performance evaluation program stored in the memory and executable on the processor, wherein the heating performance evaluation program is configured to implement the heating performance evaluation method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium stores a heating performance evaluation program, which, when executed by a processor, implements the heating performance evaluation method according to any one of claims 1 to 6.

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