A vehicle sensor signal correction method, device, equipment and medium

Abstract

The application discloses a vehicle sensor signal correction method, device, equipment and medium, detecting a static analog signal received by a first controller from a test signal source; switching the first controller to a new working mode, and detecting a first analog signal received by the first controller from the test signal source in the new working mode; calculating a difference value of the first analog signal and the static analog signal to obtain a first correction signal, and binding the first correction signal with the working mode after the current round switching; when the vehicle is running, detecting whether the first controller is switched to the working mode; if the first controller is switched to the working mode, determining a corresponding target correction signal from the first correction signal according to the working mode after the switching, and correcting a sensor signal input to the first controller. The method can automatically correct the floating of the sensor signal input. The application can be widely applied in the technical field of vehicles.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, and in particular to a vehicle sensor signal correction method, device, equipment and medium. BACKGROUND

[0002] With the development of modern automobile technology, the electronic system inside the vehicle becomes more and more complex, and many vehicles integrate more and more functions, including navigation systems, entertainment systems, safety systems (such as automatic emergency braking, lane keeping assistance), comfort systems (such as seat heating, air conditioning control), etc., and the number of vehicle controllers is also increasing. The signal line of each controller is more and more complex, and for the signal ground line of the controller, there are cases of common voltage with the power negative pole, and cases of separate grounding of the signal ground line of the controller.

[0003] During the operation of the vehicle, due to the changeable working conditions, the power negative pole current may change, affecting the potential floating of the common voltage point. At this time, the sensor signal input into the controller will be affected, which is easy to cause the controller to make a mistake, affecting the controller function and driving safety. Therefore, in the current part of the vehicle, the signal ground of the multiple controllers is separately grounded with the power negative pole, so that the input signal basically does not float. However, it is found in actual application that this implementation strategy requires a large number of grounding wires and sets the grounding point, and the wire harness cost rises very much.

[0004] Therefore, the problems of the prior art still need to be solved and optimized. SUMMARY

[0005] The purpose of the present application is to at least solve one of the technical problems in the related art.

[0006] To this end, one purpose of the embodiments of the present application is to provide a vehicle sensor signal correction method, device, equipment and medium.

[0007] In order to achieve the above technical purpose, the technical solutions adopted by the embodiments of the present application include:

[0008] On the one hand, the embodiments of the present application provide a vehicle sensor signal correction method, the vehicle comprising a first controller, the signal ground of the first controller and the power negative pole of the first controller are common voltage; the method comprises:

[0009] detecting a static analog signal received by the first controller from a test signal source;

[0010] switching the first controller to a new working mode, and detecting a first analog signal received by the first controller from the test signal source in the new working mode;

[0011] calculating a difference between the first analog signal and the static analog signal to obtain a first correction signal, binding the first correction signal to a working mode after a current round of switching, and returning to the step of switching the first controller to a new working mode;

[0012] detecting whether the first controller switches the working mode when the vehicle is running;

[0013] if the first controller switches the working mode, determining a corresponding target correction signal from the first correction signal according to the working mode after the switching;

[0014] correcting a sensor signal input to the first controller according to the target correction signal.

[0015] In addition, the vehicle sensor signal correction method according to the above-mentioned embodiments of the present application can further have the following additional technical features:

[0016] Further, in an embodiment of the present application, the method further comprises:

[0017] sending an inquiry signal to the first controller;

[0018] receiving a feedback signal of the first controller to the inquiry signal, and determining a working mode currently in the first controller according to the feedback signal.

[0019] Further, in an embodiment of the present application, the switching of the first controller to a new working mode comprises:

[0020] inquiring a working mode category supported by the first controller;

[0021] numbering each of the working mode categories to determine corresponding number information of each of the working mode categories;

[0022] detecting first number information corresponding to a working mode currently in the first controller, and determining next number information of the first number information as target number information;

[0023] switching the first controller to a working mode category corresponding to the target number information.

[0024] Further, in an embodiment of the present application, the vehicle further comprises a second controller, a signal ground of the second controller, a negative electrode of a power supply of the second controller and a signal ground of the first controller are connected in common; and the method further comprises:

[0025] switching the first controller and the second controller to a new working mode combination, and detecting a second analog signal received by the first controller from the test signal source under the new working mode combination;

[0026] calculating a difference between the second analog signal and the static analog signal to obtain a second correction signal, binding the second correction signal to the working mode combination after the current round of switching, and returning to execute the step of switching the first controller and the second controller to the new working mode combination;

[0027] detecting whether a switch occurs in the working mode combination in which the first controller and the second controller are located when the vehicle is running;

[0028] if the switch occurs in the working mode combination in which the first controller and the second controller are located, determining a corresponding target correction signal from the second correction signal according to the working mode combination after the switching;

[0029] correcting a sensor signal input to the first controller according to the target correction signal.

[0030] Further, in an embodiment of the present application, the sensor signal includes at least one of a speed sensor signal, a pressure sensor signal, a temperature sensor signal, and a gyroscope signal.

[0031] Further, in an embodiment of the present application, the first controller is any one of an engine controller, a transmission controller, a brake controller, an air conditioner controller, a vehicle body controller, a drive controller, or an auxiliary driving system controller.

[0032] In another aspect, an embodiment of the present application provides a correction device for a vehicle sensor signal, the vehicle including a first controller, a signal ground of the first controller being common with a negative electrode of a power supply of the first controller; the device including:

[0033] a first detection unit configured to detect a static analog signal received by the first controller from a test signal source;

[0034] a second detection unit configured to switch the first controller to a new working mode, and detect a first analog signal received by the first controller from the test signal source under the new working mode;

[0035] a processing unit configured to calculate a difference between the first analog signal and the static analog signal to obtain a first correction signal, bind the first correction signal to the working mode after the current round of switching, and return to execute the step of switching the first controller to the new working mode;

[0036] a third detecting unit, configured to detect whether the first controller switches the working mode when the vehicle is running;

[0037] a determining unit, configured to determine a corresponding target correction signal from the first correction signal according to the switched working mode if the first controller switches the working mode;

[0038] a first executing unit, configured to correct a sensor signal input to the first controller according to the target correction signal.

[0039] In another aspect, an embodiment of the present application provides a computer device, comprising:

[0040] at least one processor;

[0041] at least one memory configured to store at least one program;

[0042] when the at least one program is executed by the at least one processor, the at least one processor is caused to implement the above-mentioned vehicle sensor signal correction method.

[0043] In another aspect, an embodiment of the present application further provides a computer readable storage medium, wherein a processor executable program is stored, and the processor executable program is used to implement the above-mentioned vehicle sensor signal correction method when executed by a processor.

[0044] The advantages and beneficial effects of the present application will be partially given in the following description, partially will become obvious from the following description, or will be learned by the practice of the present application:

[0045] The embodiment of the present application discloses a vehicle sensor signal correction method, the vehicle includes a first controller, the signal ground of the first controller and the negative electrode of the power supply of the first controller are shared; the method detects a static analog signal received by the first controller from a test signal source; the first controller is switched to a new working mode, and a first analog signal received by the first controller from the test signal source in the new working mode is detected; the difference between the first analog signal and the static analog signal is calculated to obtain a first correction signal, the first correction signal is bound to the working mode after the current round switching, and the step of switching the first controller to the new working mode is returned; when the vehicle is running, whether the first controller is switched to the working mode is detected; if the first controller is switched to the working mode, the corresponding target correction signal is determined from the first correction signal according to the working mode after the switching; and the sensor signal input to the first controller is corrected according to the target correction signal. The method can automatically correct the floating of the sensor signal input, ensure that the controller does not cause functional abnormalities due to the signal input potential floating, and is beneficial to improve driving safety; and the signal ground of the controller and the negative electrode of the power supply are shared without being separately grounded, the use of grounding wires can be reduced, and thus the production cost of the vehicle is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following introduces the drawings of the related technical solutions in the embodiments of the present application or the prior art. It should be understood that the drawings in the following introduction are only for the convenience of clearly describing some embodiments in the technical solutions of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0047] Figure 1 A flowchart of a vehicle sensor signal correction method provided in the embodiments of the present application;

[0048] Figure 2 A wiring diagram of a first controller provided in the embodiments of the present application;

[0049] Figure 3 A wiring diagram of two controllers provided in the embodiments of the present application, the signal ground and the negative electrode of the power supply are shared;

[0050] Figure 4 A structure diagram of a computer device provided in the embodiments of the present application. DETAILED DESCRIPTION

[0051] In order to make the purposes, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application in combination with the accompanying drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application. When the following description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with embodiments of the present application. They are merely examples of apparatuses and methods consistent with some aspects of the embodiments of the present application as detailed in the appended claims.

[0052] It can be understood that the terms “first”, “second” and the like used in the present application can be used herein to describe various concepts, but unless specifically stated, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another concept. For example, without departing from the scope of the embodiments of the present application, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information. Depending on the context, the word “if” as used herein can be interpreted as “when” or “when” or “in response to determining”.

[0053] The terms “at least one”, “multiple”, “each”, “any” and the like used in the present application include one, two or more than two, multiple includes two or more than two, each refers to each of the corresponding multiple, and any refers to any one of the multiple.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0055] With the development of modern automobile technology, the electronic system inside the vehicle becomes more and more complex, and many vehicles integrate more and more functions, including navigation systems, entertainment systems, safety systems (such as automatic emergency braking, lane keeping assistance), comfort systems (such as seat heating, air conditioning control), etc., and the number of vehicle controllers is also increasing. The signal line of each controller is more and more complex, and for the signal ground wire of the controller, there are cases of common pressure with the negative electrode of the power supply, and cases of separate grounding of the signal ground wire of the controller.

[0056] During the operation of the vehicle, due to the changeable working conditions, the negative electrode current of the power supply may change, which affects the potential floating of the common pressure point. At this time, the sensor signal input into the controller is affected, which easily leads to misjudgment of the controller, affecting the function of the controller and the driving safety. Therefore, in the current part of the vehicle, the signal ground of the multiple controllers and the negative electrode of the power supply are separately grounded, so that the input signal basically does not float. However, it is found in actual application that this implementation strategy needs a large number of grounding wires and grounding points, and the cost of the wire harness increases a lot.

[0057] Therefore, in the embodiments of the present application, a vehicle sensor signal correction method is provided. The vehicle includes a first controller, and the signal ground of the first controller and the negative electrode of the power supply of the first controller are common pressure. The method detects a static analog signal received by the first controller from a test signal source; switches the first controller to a new working mode, and detects a first analog signal received by the first controller from the test signal source in the new working mode; calculates the difference between the first analog signal and the static analog signal to obtain a first correction signal, binds the first correction signal with the working mode after the current round switching, and returns to the step of switching the first controller to the new working mode; when the vehicle is running, it is detected whether the working mode of the first controller is switched; if the working mode of the first controller is switched, the corresponding target correction signal is determined from the first correction signal according to the switched working mode; and the sensor signal input into the first controller is corrected according to the target correction signal. This method can automatically correct the floating of the sensor signal input, ensure that the controller does not cause functional abnormalities due to the floating of the signal input potential, and is conducive to improving the driving safety; and the signal ground of the controller and the negative electrode of the power supply do not need to be separately grounded, which can reduce the use of grounding wires, thereby reducing the production and manufacturing cost of the vehicle.

[0058] Please refer to Figure 1 , Figure 1 is a flowchart of a vehicle sensor signal correction method provided by the embodiments of the present application. Referring to Figure 1 , the vehicle sensor signal correction method provided by the present application includes but is not limited to:

[0059] Step 110, detecting a static analog signal received by the first controller from a test signal source;

[0060] Step 120, switching the first controller to a new working mode, and detecting a first analog signal received by the first controller from the test signal source in the new working mode;

[0061] Step 130, a difference between the first analog signal and the static analog signal is calculated to obtain a first correction signal, the first correction signal is bound to a working mode after current round switching, and the step of switching the first controller to a new working mode is returned to be executed;

[0062] Step 140, when the vehicle is running, whether the first controller is switched to a new working mode is detected;

[0063] Step 150, if the first controller is switched to a new working mode, a corresponding target correction signal is determined from the first correction signal according to the new working mode;

[0064] Step 160, according to the target correction signal, a sensor signal input to the first controller is corrected.

[0065] In the embodiment of the application, a vehicle sensor signal correction method is provided, which can automatically correct the floating of sensor signal input, ensure that the controller does not cause functional abnormalities due to signal input potential floating, and is beneficial to improve driving safety; and without the need to separately ground the signal ground of the controller and the negative pole of the power supply, the use of grounding wires can be reduced, thereby reducing the production cost of the vehicle.

[0066] The vehicle sensor signal correction method provided in the embodiment of the application is for a vehicle comprising a first controller, for example, please refer to Figure 2 , Figure 2 A wiring diagram of a first controller provided in the embodiment of the application is shown, as shown in Figure 2 The signal ground of the first controller and the negative pole of the power supply are shared. Here, the first controller can be any controller in the vehicle, for example, can be any one of an engine controller, a transmission controller, a brake controller, an air conditioner controller, a body controller, a drive controller or an auxiliary driving system controller, and the application does not limit this.

[0067] In the embodiment of the application, for the first controller, the signal fluctuation that can be caused when the working condition changes can be determined through multiple iterative learning in advance, recorded as a correction signal, so that when the working mode of the vehicle changes, the correction of the corresponding sensor signal can be realized based on the recorded correction signal.

[0068] Specifically, in the embodiments of the present application, a test signal source can be prepared and input into the first controller to detect the static analog signal received by the first controller at this time. In the embodiments of the present application, the static analog signal refers to an analog signal not affected by the floating of the common voltage point potential of the first controller. This signal can be measured when the working mode of the first controller remains unchanged for a long time, or can be measured by separately grounding the signal ground and the negative electrode of the power supply of the first controller and inputting the test signal source into the first controller. The present application does not limit this.

[0069] After the static analog signal is determined, the working mode of the first controller can be switched from the current working mode to another type of working mode, and then the analog signal received by the first controller from the test signal source in the new working mode is detected and recorded as the first analog signal. The analog signal here can be a voltage signal. After obtaining the first analog signal, the difference between the first analog signal and the static analog signal can be calculated, and the difference between the two is recorded as the first correction signal. For example, the static analog signal a is collected, and the new first analog signal a1 is read after the controller switches the working mode, and then the difference between the two is calculated and recorded as b=a1-a. The value is the first correction signal, which can be bound to the working mode after switching.

[0070] In the embodiments of the present application, the above-mentioned process of switching the working mode can be executed multiple times. In some embodiments, the first controller is switched to a new working mode, comprising:

[0071] querying the working mode categories supported by the first controller;

[0072] numbering each of the working mode categories to determine the corresponding number information of each of the working mode categories;

[0073] detecting the first number information corresponding to the working mode in which the first controller currently locates, and determining the next number information of the first number information as the target number information;

[0074] switching the first controller to the working mode category corresponding to the target number information.

[0075] In the embodiments of the present application, when the first controller is switched to a new working mode, the working mode categories supported by the first controller can be queried, each working mode category is numbered, and the number information corresponding to each working mode category can be determined. The number information can be identified by Arabic numerals. When switching, the number information corresponding to the current working mode of the first controller can be detected, which is recorded as the first number information. Then, the next number information of the first number information is determined as the target number information, so as to switch the first controller to the working mode category corresponding to the target number information.

[0076] Of course, in the embodiments of the present application, the current working mode of the first controller needs to be monitored, which can be realized by sending an inquiry signal to the first controller. After sending the inquiry signal to the first controller, the feedback signal of the first controller to the inquiry signal can be received, and according to the feedback signal, the current working mode of the first controller can be determined.

[0077] In the embodiments of the present application, after the first correction signal corresponding to each working mode is determined, the recorded first correction signal can be applied to the correction of the sensor signal of the first controller. Specifically, in the embodiments of the present application, when the vehicle is running, whether the working mode of the first controller is converted can be detected. If not, the vehicle can continue to run normally. If yes, according to the switched working mode, the signal corresponding to the switched working mode can be determined from the first correction signal, and the signal is used as the target correction signal. Through the target correction signal, the sensor signal input into the first controller can be corrected. The sensor signal can include but is not limited to at least one of a speed sensor signal, a pressure sensor signal, a temperature sensor signal, and a gyroscope signal.

[0078] In some embodiments, the vehicle further comprises a second controller, the signal ground of the second controller, the negative electrode of the power supply of the second controller and the signal ground of the first controller are connected in common; the method further comprises:

[0079] Switching the first controller and the second controller to a new working mode combination, and detecting a second analog signal received by the first controller from the test signal source under the new working mode combination;

[0080] Calculating the difference between the second analog signal and the static analog signal to obtain a second correction signal, binding the second correction signal with the working mode combination after the current round switching, and returning to the step of switching the first controller and the second controller to a new working mode combination;

[0081] detecting whether a working mode combination of the first controller and the second controller switches when the vehicle is running;

[0082] if the working mode combination of the first controller and the second controller switches, determining a corresponding target correction signal from the second correction signal according to the working mode combination after the switch;

[0083] correcting a sensor signal input to the first controller according to the target correction signal.

[0084] In the embodiments of the present application, when the signal ground of multiple controllers is shared with the negative pole of the power supply, the floating of the signal input is more frequent and seriously affects the quality of the signal input. Taking two cases as an example, referring to Figure 3 , Figure 3 A wiring schematic diagram of the signal ground of two controllers being shared with the negative pole of the power supply is shown in the embodiments of the present application. In the embodiments of the present application, the second controller is referred to as the second controller, and the first controller and the second controller can be regarded as a combination, and their working modes can be referred to as a working mode combination. Similar to the strategy in the foregoing embodiments, in the embodiments of the present application, the working mode combination of the first controller and the second controller can be switched, and the analog signal received by the first controller from the test signal source in the new working mode combination is recorded as a second analog signal. Then, the difference between the second analog signal and the static analog signal can be calculated to obtain a correction signal, which is recorded as a second correction signal. For each second correction signal, it can be bound with the working mode combination after the current round of switching. Through multiple switches, the second correction signal corresponding to each working mode combination can be determined. When the vehicle is running, whether the working mode combination of the first controller and the second controller switches can be detected, and if the switch occurs, the target correction signal corresponding to the working mode combination after the switch can be determined from the second correction signal, so as to correct the sensor signal input to the first controller.

[0085] In the embodiments of the present application, a vehicle sensor signal correction device is also provided, which comprises:

[0086] a first detection unit configured to detect a static analog signal received by the first controller from a test signal source;

[0087] a second detection unit configured to switch the first controller to a new working mode and detect a first analog signal received by the first controller from the test signal source in the new working mode;

[0088] a processing unit, configured to calculate a difference between the first analog signal and the static analog signal to obtain a first correction signal, bind the first correction signal with a working mode after a current round of switching, and return to execute the step of switching the first controller to a new working mode;

[0089] a third detection unit, configured to detect whether the first controller is switched to a new working mode when the vehicle is running;

[0090] a determination unit, configured to determine a target correction signal from the first correction signal according to the new working mode if the first controller is switched to the new working mode;

[0091] a first execution unit, configured to correct a sensor signal input to the first controller according to the target correction signal.

[0092] It can be understood that the contents in the above method embodiments are applicable to the present device embodiments, the present device embodiments specifically implement the same functions as the above method embodiments, and achieve the same beneficial effects as the above method embodiments.

[0093] With reference to Figure 4 , the present application provides a computer device, comprising:

[0094] at least one processor 210;

[0095] at least one memory 220, configured to store at least one program;

[0096] when the at least one program is executed by the at least one processor 210, the at least one processor 210 is caused to implement Figure 1 a vehicle sensor signal correction method shown in the figure.

[0097] Similarly, the contents in the above method embodiments are applicable to the present computer device embodiments, the present computer device embodiments specifically implement the same functions as the above method embodiments, and achieve the same beneficial effects as the above method embodiments.

[0098] The present application also provides a computer readable storage medium, wherein the computer readable storage medium stores a program executable by a processor 210, and the program executable by the processor 210 is used to execute the above vehicle sensor signal correction method when executed by the processor 210.

[0099] The present application also discloses a computer readable storage medium, wherein the computer readable storage medium stores a program executable by a processor, and the program executable by the processor is used to implement a vehicle sensor signal correction method embodiment as Figure 1 shown in the figure when executed by the processor.

[0100] It can be understood that the contents in the vehicle sensor signal correction method embodiment shown as Figure 1 are all applicable to the computer readable storage medium embodiment, the computer readable storage medium embodiment specifically implements the functions same as the vehicle sensor signal correction method embodiment shown as Figure 1 , and achieves the beneficial effects same as the vehicle sensor signal correction method embodiment shown as Figure 1 , and achieves the beneficial effects same as the vehicle sensor signal correction method embodiment shown as

[0101] In some alternative embodiments, the functions / operations mentioned in the block diagram can not occur in the order mentioned in the operation diagram. For example, depending on the functions / operations involved, two blocks shown in succession can actually be executed substantially simultaneously or the blocks can sometimes be executed in reverse order. In addition, the embodiments presented and described in the flowcharts of the present application are provided by way of example only. The disclosed methods are not limited to the operations and logical flows presented in this specification. Alternative embodiments are contemplated in which the order of various operations is changed and in which sub-operations described as part of a larger operation are executed independently.

[0102] In addition, although the present application is described in the context of functional modules, it should be understood that, unless otherwise specified, one or more of the functions and / or features can be integrated in a single physical system and / or software module, or one or more functions and / or features can be implemented in separate physical systems or software modules. It can also be understood that a detailed discussion of the actual implementation of each module is unnecessary for an understanding of the present application. Rather, given the properties, functions and internal relationships of the various functional modules in the system disclosed herein, the actual implementation of the module will be within the routine skill of the engineer, given the benefit of this disclosure. Therefore, the person skilled in the art can implement the present application as set forth in the claims without undue experimentation using ordinary skill. It can also be understood that the disclosed specific concepts are merely illustrative and are not intended to limit the scope of the present application, the scope of the present application being determined by the full scope of the appended claims and their equivalents.

[0103] If the functions are implemented in software, the functions can be stored in or implemented as one or more instructions or code on a computer-readable medium. Computer-readable media include both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage medium can be any available medium that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, or twisted pair, then the coaxial cable, fiber optic cable, or twisted pair are included in the definition of medium. Disk and disc, as used herein, include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), and Blu-Ray® disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0104] In other words, like a human driver of a vehicle, an autonomous vehicle can be programmed to follow traffic laws and to make decisions based on its environment. For example, an autonomous vehicle can be programmed to follow a speed limit, to stop at a stop sign, to yield to a pedestrian, to merge onto a highway, to change lanes, to park, and so on. In some embodiments, an autonomous vehicle can be programmed to follow traffic laws and to make decisions based on its environment using a machine learning algorithm. For example, an autonomous vehicle can be programmed to follow a speed limit, to stop at a stop sign, to yield to a pedestrian, to merge onto a highway, to change lanes, to park, and so on using a machine learning algorithm.

[0105] More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electrical connection (electronic) having one or more wires, a portable computer diskette (magnetic), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber (optical), and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can also be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, for example, via optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.

[0106] It should be understood that aspects of the application can be implemented in hardware, software, firmware or a combination of them. In the above embodiments, various steps or methods can be implemented in software or firmware that is stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any of the following technologies, or combinations thereof, can be used: a discrete logic circuit having logic gates for implementing logic functions upon data signals, an application specific integrated circuit having appropriate combinational logic gates, a programmable gate array (PGA), a field programmable gate array (FPGA), and / or the like.

[0107] In the above description of the present specification, the description referring to the terms "one embodiment", "another embodiment" or "certain embodiments" or the like means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. The illustrative expressions of the above terms do not necessarily refer to the same embodiment or example in the present specification. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in an appropriate manner.

[0108] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, alternatives and variations to these embodiments can be made without departing from the principles and spirit of the application, and the scope of the application is defined by the claims and their equivalents.

[0109] The above is a specific description of the preferred embodiments of the present application, but the present application is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present application, and these equivalent modifications or substitutions are included in the scope defined by the claims of the present application

[0110] In the above description of the present specification, the description referring to the terms "one embodiment", "another embodiment" or "certain embodiments" or the like means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. The illustrative expressions of the above terms do not necessarily refer to the same embodiment or example in the present specification. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in an appropriate manner.

[0111] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, alternatives and variations to these embodiments can be made without departing from the principles and spirit of the application, and the scope of the application is defined by the claims and their equivalents.

Claims

1. A method for correcting vehicle sensor signals, characterized in that, The vehicle includes a first controller, wherein the signal ground and the negative power supply terminal of the first controller share a common voltage; the method includes: Detect the static analog signal received by the first controller from the test signal source; Switch the first controller to a new operating mode and detect the first analog signal received by the first controller from the test signal source in the new operating mode; Calculate the difference between the first analog signal and the static analog signal to obtain the first correction signal, bind the first correction signal to the working mode after the current cycle switching, and return to execute the step of switching the first controller to the new working mode; When the vehicle is running, detect whether the first controller has switched operating modes; If the first controller switches its operating mode, the corresponding target correction signal is determined from the first correction signal according to the switched operating mode. The sensor signals input to the first controller are corrected based on the target correction signal.

2. The method for correcting vehicle sensor signals according to claim 1, characterized in that, The method further includes: Send an inquiry signal to the first controller; The system receives a feedback signal from the first controller in response to the query signal, and determines the current operating mode of the first controller based on the feedback signal.

3. The method for correcting vehicle sensor signals according to claim 1, characterized in that, Switching the first controller to the new operating mode includes: Query the types of operating modes supported by the first controller; Each of the aforementioned work mode categories is assigned a number, and the corresponding number information for each of the aforementioned work mode categories is determined; The first controller detects the first number information corresponding to its current working mode and determines the next number information of the first number information as the target number information. Switch the first controller to the working mode category corresponding to the target number information.

4. The method for correcting vehicle sensor signals according to claim 1, characterized in that, The vehicle further includes a second controller, wherein the signal ground of the second controller, the negative power supply terminal of the second controller, and the signal ground of the first controller share a common voltage; the method further includes: Switch the first controller and the second controller to a new combination of operating modes, and detect the second analog signal received by the first controller from the test signal source under the new combination of operating modes; Calculate the difference between the second analog signal and the static analog signal to obtain the second correction signal, bind the second correction signal to the working mode combination after the current cycle switching, and return to execute the step of switching the first controller and the second controller to the new working mode combination; When the vehicle is running, detect whether the combination of the working modes of the first controller and the second controller has switched. If the combination of the operating modes of the first controller and the second controller changes, the corresponding target correction signal is determined from the second correction signal according to the changed combination of operating modes. The sensor signals input to the first controller are corrected based on the target correction signal.

5. A method for correcting vehicle sensor signals according to any one of claims 1-4, characterized in that, The sensor signals include at least one of the following: speed sensor signals, pressure sensor signals, temperature sensor signals, and gyroscope signals.

6. A method for correcting vehicle sensor signals according to any one of claims 1-4, characterized in that, The first controller is any one of the following: engine controller, transmission controller, brake controller, air conditioning controller, body controller, drive controller, or driver assistance system controller.

7. A device for correcting vehicle sensor signals, characterized in that, The vehicle includes a first controller, wherein the signal ground and the negative power supply terminal of the first controller share a common voltage; the device includes: The first detection unit is used to detect the static analog signal received by the first controller from the test signal source; The second detection unit is used to switch the first controller to a new operating mode and detect the first analog signal received by the first controller from the test signal source in the new operating mode. The processing unit is used to calculate the difference between the first analog signal and the static analog signal to obtain a first correction signal, bind the first correction signal to the working mode after the current cycle switching, and return to execute the step of switching the first controller to the new working mode. The third detection unit is used to detect whether the first controller switches its working mode when the vehicle is running. The determining unit is configured to determine the corresponding target correction signal from the first correction signal according to the switched operating mode if the first controller switches its operating mode. The first execution unit is used to correct the sensor signal input to the first controller according to the target correction signal.

8. The vehicle sensor signal correction device according to claim 7, characterized in that, The vehicle further includes a second controller, the signal ground of the second controller, the negative power supply of the second controller, and the signal ground of the first controller share a common voltage; the device further includes a second execution unit, the second execution unit being used for: Switch the first controller and the second controller to a new combination of operating modes, and detect the second analog signal received by the first controller from the test signal source under the new combination of operating modes; Calculate the difference between the second analog signal and the static analog signal to obtain the second correction signal, bind the second correction signal to the working mode combination after the current cycle switching, and return to execute the step of switching the first controller and the second controller to the new working mode combination; When the vehicle is running, detect whether the combination of the working modes of the first controller and the second controller has switched. If the combination of the operating modes of the first controller and the second controller changes, the corresponding target correction signal is determined from the second correction signal according to the changed combination of operating modes. The sensor signals input to the first controller are corrected based on the target correction signal.

9. A computer device, characterized in that, include: At least one processor; At least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements a method for correcting vehicle sensor signals as described in any one of claims 1-6.

10. A computer-readable storage medium storing a processor-executable program, characterized in that: The processor-executable program, when executed by the processor, is used to implement a method for correcting vehicle sensor signals as described in any one of claims 1-6.

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