Electronic throttle test method and apparatus, controller, and storage medium

Abstract

Disclosed in the present application are an electronic throttle test method and apparatus, a controller, and a storage medium. The method comprises: if it is detected that a first preset condition for a return spring test is met, testing a return spring to obtain a return spring test result and, if the return spring test result is successful, configuring a return spring flag bit, the return spring flag bit being configured to represent that the return spring test has been completed; after the return spring flag bit has been detected, determining whether an electronic throttle has reached a lower mechanical stop; and, if so, detecting the limp-home position of the electronic throttle and, if the detection has passed, generating an electronic throttle test result.

Description

Electronic throttle body testing methods, devices, controllers, and storage media

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 2024118802015, filed on December 19, 2024, entitled “Electronic Throttle Detection Method, Apparatus, Controller and Storage Medium”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to, but is not limited to, the field of hybrid vehicle control technology, and more specifically, to an electronic throttle detection method, device, controller, and storage medium. Background Technology

[0004] The motors in a dual-motor hybrid system have three modes: pure electric mode, series mode, and parallel mode. The electronic throttle is a crucial component of the engine; its proper functioning directly impacts vehicle safety and driving comfort.

[0005] Therefore, there is an urgent need for an electronic throttle detection method that can identify and warn of defects in electronic throttle components in advance, so as to effectively ensure the normal operation of the electronic throttle and thus improve the safety and reliability of the vehicle. Summary of the Invention

[0006] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0007] A first aspect of this disclosure provides an electronic throttle detection method, the method comprising:

[0008] If the first preset condition for the return spring detection is met, the return spring is detected to obtain a return spring detection result. If the return spring detection result is successful, a return spring flag is configured. The return spring flag is set to indicate that the return spring detection has passed.

[0009] After detecting the return spring flag, determine whether the electronic throttle has reached the mechanical bottom dead center;

[0010] If so, the limp position of the electronic throttle is detected. If the detection passes, an electronic throttle detection result is generated.

[0011] A second aspect of this disclosure provides an electronic throttle detection device applied to a controller, the device comprising:

[0012] The first detection module is configured to detect the return spring when a first preset condition for the return spring detection is met, and obtain a return spring detection result. It is also configured to configure a return spring flag bit when the return spring detection result is successful. The return spring flag bit is configured to indicate that the return spring detection has passed.

[0013] The judgment module is configured to determine whether the electronic throttle has reached the mechanical bottom dead center after detecting the return spring flag.

[0014] The second detection module is configured to detect the limp position of the electronic throttle when it reaches the mechanical bottom dead center, and generate an electronic throttle detection result when the detection passes.

[0015] A third aspect of this disclosure provides a controller comprising a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the method of the first aspect described above.

[0016] A fourth aspect of this disclosure provides a vehicle including the controller.

[0017] A fifth aspect of this disclosure provides a computer-readable storage medium storing a computer program that, when executed by a processor, can implement the method of the first aspect described above.

[0018] A sixth aspect of this disclosure provides a computer program product including a computer program that, when executed, implements the method of the first aspect described above.

[0019] A seventh aspect of this disclosure provides a computer program that, when run on a computer, performs the method described in the first aspect.

[0020] In this disclosure, if a first preset condition for return spring detection is met, the return spring is detected, and a return spring detection result is obtained. If the return spring detection result is successful, a return spring flag is configured. The return spring flag is set to indicate that the return spring detection has passed. After detecting the return spring flag, it is determined whether the electronic throttle has reached the mechanical bottom dead center. If the electronic throttle has reached the mechanical bottom dead center, the limp position of the electronic throttle is detected. If the detection passes, an electronic throttle detection result is generated. This technical solution can identify and warn of defects in electronic throttle components in advance, while effectively ensuring the normal operation of the electronic throttle, thereby improving vehicle safety and reliability. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0023] Figure 1 is a schematic diagram of a dual-motor hybrid system provided in an embodiment of this disclosure;

[0024] Figure 2 is a schematic flowchart of an electronic throttle detection method provided in an embodiment of this disclosure;

[0025] Figure 3 is a flowchart illustrating an electronic throttle detection method provided in an embodiment of this disclosure;

[0026] Figure 4 is a schematic diagram of the structure of an electronic throttle detection device provided in an embodiment of this disclosure;

[0027] Figure 5 is a schematic diagram of the structure of a controller according to an embodiment of this disclosure. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0029] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0030] For a clearer illustration, please refer to Figure 1, which shows a schematic diagram of a dual-motor hybrid system. As can be seen from Figure 1, the dual-motor hybrid system has three motor modes: pure electric mode, series mode, and parallel mode. In series mode, P2 drives the wheels, the C0 clutch is not engaged, the engine charges the battery through P1, and P2 drives the wheels. In parallel mode, the C0 clutch is engaged, and the engine directly drives the wheels.

[0031] The electronic throttle is one of the key performance components of an engine, and its proper functioning is crucial to vehicle safety and driving comfort. Therefore, ensuring the normal operation of the electronic throttle and identifying and warning of defects in its components are of paramount importance. Thus, the control of the electronic throttle is vital throughout its entire lifecycle, having a significant impact on vehicle safety and reliability.

[0032] Figure 2 is a flowchart illustrating an electronic throttle detection method according to an embodiment of this disclosure. This method can be executed by a controller. The controller can be understood, for example, as a device such as a mobile phone, tablet computer, laptop computer, desktop computer, or smart TV. As shown in Figure 2, the method provided in this embodiment includes the following steps:

[0033] S201. If the first preset condition for the return spring detection is met, the return spring is detected and the return spring detection result is obtained. If the return spring detection result is successful, the return spring flag is configured. The return spring flag is set to indicate that the return spring detection has passed.

[0034] In this embodiment, the first preset condition for the return spring detection can be water temperature, intake air temperature, battery voltage, engine speed, and vehicle speed, etc. If all of the above conditions are met, it is determined that the first preset condition for the return spring detection is met. The return spring flag is set to indicate that the return spring detection has passed. The return spring flag is set only if the return spring detection result is successful; otherwise, it is not set.

[0035] S202. After detecting the return spring flag, determine whether the electronic throttle has reached the mechanical bottom dead center.

[0036] In one example, after the return spring is checked, the engine needs to check the electronic throttle valve before it can operate normally. Therefore, it is possible to determine whether the electronic throttle valve has reached the mechanical bottom dead center.

[0037] In one example, the mechanical bottom dead center will ensure that the electronic throttle will not cause the valve plate to scrape the pipe wall due to excessive control current at small openings.

[0038] S203. If so, the limp position of the electronic throttle is detected. If the detection passes, the electronic throttle detection result is generated.

[0039] In one example, if the electronic throttle can reach the mechanical bottom dead center, the limp position of the electronic throttle can be detected. If the detection passes, an electronic throttle detection result is generated.

[0040] This disclosure provides an electronic throttle detection method applied to a controller. The method includes: if a first preset condition for return spring detection is met, detecting the return spring to obtain a return spring detection result; if the return spring detection result is successful, configuring a return spring flag; after detecting the return spring flag, determining whether the electronic throttle has reached the mechanical bottom dead center; if so, detecting the limp position of the electronic throttle; if the detection passes, generating an electronic throttle detection result. By first detecting the return spring, it can be determined that the return spring is functioning normally. Then, with the return spring functioning normally, key positions of the electronic throttle are detected, thereby enabling early identification and warning of defects in electronic throttle components, while effectively ensuring the normal operation of the electronic throttle, improving vehicle safety and reliability.

[0041] Figure 3 is a schematic flowchart of an electronic throttle detection method provided by an embodiment of this disclosure. Applied to a controller, this embodiment of the disclosure is an optimization based on the above embodiments, and can be combined with various optional solutions in one or more of the above embodiments.

[0042] As shown in Figure 3, the electronic throttle detection method may include the following steps:

[0043] S301. If the first preset condition for the return spring detection is met, control the electronic throttle to open and initialize the electronic throttle to the initial opening value, and determine whether the electronic throttle has reached the first target area within a first preset time.

[0044] In one example, the initial opening value of the electronic throttle can be X. The first preset time can be 0.3 seconds, and the first target area can be within this range [X+13%, X+15%]. This setting of the return spring's detection range is based on empirical test values, ensuring that the return spring functions properly.

[0045] In one example, determining whether the electronic throttle has reached the first target area within a first preset time also includes:

[0046] If the electronic throttle fails to reach the first target area within the first preset time, the first fault handling will be performed and the first error code will be sent.

[0047] Determining whether the electronic throttle valve reaches the second target area of ​​the electronic throttle valve within a second preset time under the action of the return spring also includes:

[0048] If the second target area of ​​the electronic throttle is not reached within the second preset time, a second fault handling is performed and a second error code is sent.

[0049] In one example, the first error code can be a user-preset identifier code, such as 01. The second error code can be a user-preset identifier code, such as 02. This application allows the user to directly execute the operation corresponding to the identifier code to resolve the fault, ensuring that when the electronic throttle malfunctions, the system or user can quickly enter a preset safe state, reducing the risk of accidents.

[0050] S302. If yes, then control the electronic throttle to close, and determine whether the electronic throttle reaches the second target area of ​​the electronic throttle within a second preset time under the action of the return spring.

[0051] In one example, the second preset time could be 0.36 s, and the second target area of ​​the electronic throttle could be within the range [X, X+3%].

[0052] In one example, it is determined whether the electronic throttle reaches the second target area of ​​the electronic throttle within 0.36 seconds under the action of the return spring.

[0053] S303. If the second target area of ​​the electronic throttle is reached within the second preset time, the return spring detection result is obtained. If the return spring detection result is successful, the return spring flag is configured. The return spring flag is set to indicate that the return spring detection has passed.

[0054] In one example, this step can be found in step S201.

[0055] S304. After detecting the return spring flag, control the electronic throttle to move in the fully closed direction, and determine whether the electronic throttle reaches the third target area within the third preset time.

[0056] In one example, after the electronic throttle is fully closed, a timer can be started. The third preset time can be 1 second. If the electronic throttle does not reach the third target area within the third preset time, a third fault handling is performed, and a third error code is sent. The advantage of this setting is that it is first determined that the electronic throttle can be fully closed in order to perform other operations on the electronic throttle.

[0057] S305. If the electronic throttle reaches the third target area within the third preset time, control the electronic throttle to continue moving towards full closure, and determine whether the electronic throttle reaches the target duty cycle within the fourth preset time.

[0058] In one example, the fourth preset time can be 1 second. If the electronic throttle reaches the third target area within the third preset time, the timer is reset. The target duty cycle can be 60%. If the target duty cycle is not reached within the fourth preset time, a fourth fault handling is performed, and a fourth error code is sent. The advantage of this setting is that it can determine whether the throttle body can reach the mechanical bottom dead center and whether there are foreign objects at the valve port.

[0059] S306. If the electronic throttle reaches the target duty cycle within the fourth preset time, then enter the self-learning time window of the electronic throttle mechanical bottom dead center, obtain the self-learning value, and determine the confidence level of the self-learning value.

[0060] In one example, the confidence level of the self-learning value can be preset by the user. The advantage of this setting is that the reliability of the electronic throttle's execution of S304-S305 can be determined by the confidence level of the self-learning value, thereby improving the accuracy of the electronic throttle's mechanical bottom dead center test.

[0061] S307. If the confidence level of the self-learning value meets the second preset condition, then the self-learning value is verified to obtain the verification result.

[0062] In one example, the second preset condition is the reasonableness condition of the confidence level. After the confidence level of the self-learning value meets the reasonableness condition of the confidence level, the self-learning value is verified to obtain the verification result.

[0063] S308. If the verification result is successful, it is determined that the electronic throttle has reached the mechanical bottom dead center.

[0064] In one example, if the verification result passes, it means that the electronic throttle can reach the mechanical bottom dead center normally.

[0065] S309. Detect the limp position of the electronic throttle. If the detection passes, generate the electronic throttle detection result.

[0066] In one example, the limp position of the electronic throttle is detected. If the detection passes, an electronic throttle detection result is generated, including:

[0067] Increase the current first opening value of the electronic throttle valve and determine whether the fourth target area has been reached within a fifth preset time; wherein, the current first opening value is set as the opening value of the electronic throttle valve in the second target area;

[0068] If the fourth target area is reached within the fifth preset time, the electronic throttle is closed. Under the action of the return spring, it is determined whether the fifth target area has been reached within the sixth preset time.

[0069] If the fifth target area is reached within the sixth preset time, the sensor voltage value is acquired and recorded, the limp position of the electronic throttle is determined, and the electronic throttle detection result is generated.

[0070] In one example, increasing the current first opening value of the electronic throttle can be 15% higher. The fifth preset time can be 1 second, and the sixth preset time can also be 1 second. The parameter values ​​set above are empirical values.

[0071] In one example, if the fourth target area is not reached within the fifth preset time, a sixth error code is sent. If the fourth target area is reached within the fifth preset time, the electronic throttle is closed. Under the force of the return spring, it is determined whether the fifth target area has been reached within the sixth preset time. If the fifth target area is reached within the sixth preset time, a delay can be made to store the sensor voltage value, or the average value of the sensor voltage value can be calculated and the final voltage value recorded. This determines whether the limp-out position of the electronic throttle has been detected and generates an electronic throttle detection result. The advantage of this setting is that, since the fourth and fifth target areas are limp-out positions, whether the limp-out position has been reached can be determined by testing whether the fourth and fifth target areas have been reached.

[0072] In one example, the limp position of the electronic throttle is detected. If the detection passes, an electronic throttle detection result is generated, which also includes:

[0073] Adjust the current second opening value of the electronic throttle valve to a smaller value, and determine whether the sixth target area has been reached within a seventh preset time; wherein, the current second opening value is set as the opening value of the electronic throttle valve in the fifth target area;

[0074] If the sixth target area is reached within the seventh preset time, the electronic throttle is closed. Under the action of the return spring, it is determined whether the seventh target area has been reached within the eighth preset time.

[0075] If the seventh target area is reached within the eighth preset time, the sensor voltage value is acquired and recorded, the limp position of the electronic throttle is determined, and the electronic throttle detection result is generated.

[0076] In one example, reducing the current second opening value of the electronic throttle can be done by reducing it by 15%. The seventh preset time can be 1 second, and the eighth preset time can also be 1 second. The advantage of this setting is that by testing the reduction of the electronic throttle, it can be ensured that the electronic throttle will not cause the valve plate to scratch the pipe wall due to excessive control current at small openings.

[0077] This disclosure provides an electronic throttle detection method applied to a controller. The method includes: if a first preset condition for a return spring detection is met, controlling the electronic throttle to open and initializing it to an initial opening value; determining whether the electronic throttle reaches a first target area within a first preset time; if the electronic throttle reaches the first target area within the first preset time, controlling the electronic throttle to close; and determining whether the electronic throttle reaches a second target area within a second preset time under the force of the return spring. If the electronic throttle reaches the second target area within the second preset time, a return spring detection result is obtained; if the return spring detection result is successful, a return spring flag is configured; wherein the return spring flag is set to indicate that the return spring detection has passed. After detecting the return spring flag, controlling the electronic throttle to move towards the fully closed direction, and determining whether the electronic throttle reaches a third target area within a third preset time. If the electronic throttle reaches the third target area within the third preset time, controlling the electronic throttle to continue moving towards the fully closed direction, and determining whether the electronic throttle reaches a target duty cycle within a fourth preset time. If the electronic throttle reaches the target duty cycle within the fourth preset time, it enters the self-learning time window for the electronic throttle's mechanical bottom dead center (BDC), obtains the self-learning value, and determines the confidence level of the self-learning value. If the confidence level of the self-learning value meets the second preset condition, the self-learning value is verified, and a verification result is obtained. If the verification result passes, it is determined that the electronic throttle has reached the mechanical BDC. The limp position of the electronic throttle is detected; if the detection passes, an electronic throttle detection result is generated. By using this technical solution, through sequential detection of the return spring, the deviation of the mechanical BDC, and the limp position, abnormal conditions during the operation of the electronic throttle can be detected, thereby effectively ensuring the normal operation of the electronic throttle and improving vehicle safety and reliability.

[0078] Figure 4 is a schematic diagram of an electronic throttle detection device provided in an embodiment of this disclosure, applied to a controller. This electronic throttle detection device can be understood as the aforementioned controller or a functional module within the aforementioned controller. As shown in Figure 4, the electronic throttle detection device 40 includes:

[0079] The first detection module 401 is configured to detect the return spring when the first preset condition for the return spring detection is met, obtain the return spring detection result, and configure the return spring flag bit when the return spring detection result is successful; wherein, the return spring flag bit is set to indicate that the return spring detection is passed.

[0080] The judgment module 402 is configured to determine whether the electronic throttle has reached the mechanical bottom dead center after detecting the return spring flag.

[0081] The second detection module 403 is configured to detect the limp position of the electronic throttle when it reaches the mechanical bottom dead center, and to generate an electronic throttle detection result when the detection passes.

[0082] In one example, the first detection module 401 includes:

[0083] The first judgment submodule is set to control the electronic throttle to open, initialize the electronic throttle to the initial opening value, and determine whether the electronic throttle has reached the first target area within a first preset time.

[0084] The second judgment submodule is configured to control the electronic throttle to close when the electronic throttle reaches the first target area within a first preset time, and to determine whether the electronic throttle reaches the second target area of ​​the electronic throttle under the elastic force of the return spring within a second preset time.

[0085] The first determining submodule is set to obtain the return spring detection result when the second target area of ​​the electronic throttle is reached within a second preset time.

[0086] In one example, the first judgment submodule is also set as:

[0087] If the electronic throttle fails to reach the first target area within a first preset time, the first fault handling is performed and the first error code is sent.

[0088] Determining whether the electronic throttle valve reaches the second target area of ​​the electronic throttle valve within a second preset time under the action of the return spring also includes:

[0089] If the second target area of ​​the electronic throttle is not reached within the second preset time, a second fault handling is performed and a second error code is sent.

[0090] In one example, the decision module 402 includes:

[0091] The third judgment submodule is set to control the electronic throttle to move in the fully closed direction and judge whether the electronic throttle reaches the third target area within a third preset time.

[0092] The fourth judgment submodule is set to control the electronic throttle to continue moving towards full closure when the electronic throttle reaches the third target area within the third preset time, and to judge whether the electronic throttle reaches the target duty cycle within the fourth preset time.

[0093] The fifth judgment submodule is set to enter the self-learning time window of the electronic throttle mechanical bottom dead center when the electronic throttle reaches the target duty cycle within the fourth preset time, obtain the self-learning value, and judge the confidence level of the self-learning value.

[0094] The verification submodule is configured to verify the self-learning value and obtain the verification result when the confidence level of the self-learning value meets the second preset condition.

[0095] The second determination submodule is set to determine when the electronic throttle reaches the mechanical bottom dead center if the verification result passes.

[0096] In one example, the second detection module 403 includes:

[0097] The sixth judgment submodule is set to increase the current first opening value of the electronic throttle and determine whether the fourth target area is reached within the fifth preset time; wherein, the current first opening value is set to represent the opening value of the electronic throttle in the second target area;

[0098] The seventh judgment submodule is set to control the electronic throttle to close when the fourth target area is reached within the fifth preset time. Under the action of the return spring, it determines whether the fifth target area has been reached within the sixth preset time.

[0099] The first acquisition submodule is configured to acquire and record the sensor voltage value when it reaches the fifth target area within a sixth preset time, determine the limp position of the electronic throttle, and generate the electronic throttle detection result.

[0100] In one example, the second detection module 403 further includes:

[0101] The eighth judgment submodule is set to reduce the current second opening value of the electronic throttle and determine whether the sixth target area has been reached within the seventh preset time; wherein, the current second opening value is set to represent the opening value of the electronic throttle in the fifth target area;

[0102] The ninth judgment submodule is set to control the electronic throttle to close when the sixth target area is reached within the seventh preset time. Under the elastic force of the return spring, it determines whether the seventh target area has been reached within the eighth preset time.

[0103] The second acquisition submodule is configured to acquire and record the sensor voltage value when it reaches the seventh target area within an eighth preset time, determine the limp position of the electronic throttle, and generate the electronic throttle detection result.

[0104] The apparatus provided in this embodiment can execute the methods of any of the above embodiments, and its execution method and beneficial effects are similar, so they will not be described again here.

[0105] This disclosure also provides a controller, which includes: a memory storing a computer program; and a processor for executing the computer program, wherein when the computer program is executed by the processor, it can implement the methods of any of the above embodiments.

[0106] This disclosure also provides a vehicle, including a controller.

[0107] For example, Figure 5 is a schematic diagram of the structure of a controller according to an embodiment of this disclosure. Referring specifically to Figure 5 below, it shows a schematic diagram of a structure suitable for implementing the controller 1000 in the embodiments of this disclosure. The controller 1000 in the embodiments of this disclosure may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. The controller shown in Figure 5 is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this disclosure.

[0108] As shown in Figure 5, the controller 1000 may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 1001, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1008 into a random access memory (RAM) 1003. The RAM 1003 also stores various programs and data required for the operation of the controller 1000. The processing device 1001, ROM 1002, and RAM 1003 are interconnected via a bus 1004. An input / output (I / O) interface 1005 is also connected to the bus 1004.

[0109] Typically, the following devices can be connected to the I / O interface 1005: input devices 1006 including, for example, a touchscreen, touchpad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; output devices 1007 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1008 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. Communication device 1009 allows the controller 1000 to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 5 shows a controller 1000 with various devices, it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed alternatively.

[0110] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication device 1009, or installed from storage device 1008, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of embodiments of this disclosure.

[0111] It should be noted that the computer-readable medium described in this disclosure can be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this disclosure, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in connection with an instruction execution system, apparatus, or device. In this disclosure, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wires, optical fibers, RF (radio frequency), etc., or any suitable combination thereof.

[0112] In some implementations, clients and servers can communicate using any currently known or future-developed network protocol such as HTTP (Hypertext Transfer Protocol), and can interconnect with digital data communication (e.g., communication networks) of any form or medium. Examples of communication networks include local area networks (“LANs”), wide area networks (“WANs”), the Internet (e.g., the Internet of Things), and end-to-end networks (e.g., ad hoc end-to-end networks), as well as any currently known or future-developed networks.

[0113] The aforementioned computer-readable medium may be included in the aforementioned controller; or it may exist independently and not assembled into the controller.

[0114] The aforementioned computer-readable medium carries one or more programs. When the controller executes the aforementioned one or more programs, the controller causes the controller to: if it detects that a first preset condition for return spring detection is met, then detect the return spring and obtain a return spring detection result; if the return spring detection result is successful, then configure a return spring flag bit; wherein, the return spring flag bit is set to indicate that the return spring detection has passed; after detecting the return spring flag bit, determine whether the electronic throttle has reached the mechanical bottom dead center; if so, then detect the limp position of the electronic throttle; if the detection passes, then generate an electronic throttle detection result.

[0115] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination thereof, including but not limited to object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0116] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0117] The units described in the embodiments of this disclosure can be implemented in software or hardware. The names of the units are not, in some cases, intended to limit the specific unit.

[0118] The functions described above in this document can be performed, at least in part, by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: Field Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application Standard Products (ASSPs), System-on-Chip (SoCs), Complex Programmable Logic Devices (CPLDs), and so on.

[0119] In the context of this disclosure, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0120] This disclosure also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it can implement the methods of any of the above embodiments. The execution method and beneficial effects are similar, and will not be described again here.

[0121] This disclosure also provides a computer program product, including a computer program that, when executed, implements the method steps as described in the above method embodiments. The specific implementation and technical effects are similar and will not be repeated here.

[0122] This disclosure also provides a computer program that, when run on a computer, causes the computer to execute the method steps as described in the above method embodiments. The specific implementation and technical effects are similar and will not be repeated here.

[0123] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0124] The above are merely specific embodiments of this disclosure, enabling those skilled in the art to understand or implement this disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0125] After reading and understanding the accompanying diagrams and detailed descriptions, the other aspects can be understood.

Claims

1. An electronic throttle detection method, applied to a controller, the method comprising: If the first preset condition for the return spring detection is met, the return spring is detected to obtain a return spring detection result. If the return spring detection result is successful, a return spring flag is configured. The return spring flag is set to indicate that the return spring detection has passed. After detecting the return spring flag, determine whether the electronic throttle has reached the mechanical bottom dead center; If so, the limp position of the electronic throttle is detected. If the detection passes, an electronic throttle detection result is generated.

2. The method according to claim 1, wherein, The step of detecting the return spring and obtaining the return spring detection result includes: Control the electronic throttle to open, initialize the electronic throttle to the initial opening value, and determine whether the electronic throttle reaches the first target area within a first preset time. If the electronic throttle reaches the first target area within a first preset time, the electronic throttle is controlled to close. It is then determined whether the electronic throttle reaches the second target area within a second preset time under the action of the return spring. If the second target area of ​​the electronic throttle is reached within the second preset time, the return spring detection result is obtained.

3. The method according to claim 2, wherein, The step of determining whether the electronic throttle valve has reached the first target area within a first preset time period further includes: If the electronic throttle valve fails to reach the first target area within a first preset time, a first fault handling is performed and a first error code is sent. The step of determining whether the electronic throttle valve reaches the second target area of ​​the electronic throttle valve within a second preset time under the action of the return spring further includes: If the second target area of ​​the electronic throttle is not reached within the second preset time, a second fault handling is performed and a second error code is sent.

4. The method according to claim 1, wherein, The determination of whether the electronic throttle has reached the mechanical bottom dead center includes: Control the electronic throttle valve to move in the fully closed direction, and determine whether the electronic throttle valve reaches the third target area within a third preset time. If the electronic throttle reaches the third target area within a third preset time, the electronic throttle is controlled to continue moving towards the fully closed direction, and it is determined whether the electronic throttle reaches the target duty cycle within a fourth preset time. If the electronic throttle reaches the target duty cycle within the fourth preset time, then the electronic throttle enters the mechanical bottom dead center self-learning time window, obtains the self-learning value, and determines the confidence level of the self-learning value. If the confidence level of the self-learning value meets the second preset condition, the self-learning value is verified to obtain the verification result. If the verification result passes, it is determined that the electronic throttle has reached the mechanical bottom dead center.

5. The method according to claim 2, wherein, The step of detecting the limp position of the electronic throttle valve, if the detection passes, generates an electronic throttle valve detection result, including: Increase the current first opening value of the electronic throttle valve, and determine whether the fourth target area is reached within a fifth preset time; wherein, the current first opening value is set as the opening value of the electronic throttle valve in the second target area; If the fourth target area is reached within the fifth preset time, the electronic throttle is controlled to close, and under the elastic force of the return spring, it is determined whether the fifth target area is reached within the sixth preset time. If the fifth target area is reached within the sixth preset time, the sensor voltage value is acquired and recorded, the limp position of the electronic throttle is determined, and the electronic throttle detection result is generated.

6. The method according to claim 5, wherein, The step of detecting the limp position of the electronic throttle, and generating an electronic throttle detection result if the detection passes, further includes: The current second opening value of the electronic throttle is reduced, and it is determined whether the sixth target area is reached within a seventh preset time; wherein, the current second opening value is set as the opening value of the electronic throttle in the fifth target area; If the sixth target area is reached within the seventh preset time, the electronic throttle is controlled to close, and under the elastic force of the return spring, it is determined whether the seventh target area is reached within the eighth preset time. If the seventh target area is reached within the eighth preset time, the sensor voltage value is acquired and recorded, the limp position of the electronic throttle is determined, and the electronic throttle detection result is generated.

7. An electronic throttle detection device, applied to a controller, the device comprising: The first detection module is configured to detect the return spring when a first preset condition for the return spring detection is met, and obtain a return spring detection result. It is also configured to configure a return spring flag bit when the return spring detection result is successful. The return spring flag bit is configured to indicate that the return spring detection has passed. The judgment module is configured to determine whether the electronic throttle has reached the mechanical bottom dead center after detecting the return spring flag. The second detection module is configured to detect the limp position of the electronic throttle when it reaches the mechanical bottom dead center, and generate an electronic throttle detection result when the detection passes.

8. A controller, comprising: A processor and a memory, wherein the memory stores a computer program that, when executed by the processor, performs the method of any one of claims 1-6.

9. A vehicle comprising the controller of claim 8.

10. A computer-readable storage medium storing a computer program that, when executed by a processor, implements the method as described in any one of claims 1-6.

11. A computer program product comprising a computer program that, when executed, implements the method as described in any one of claims 1-6.

12. A computer program, which, when run on a computer, performs the method as described in any one of claims 1-6.

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