CN117141509A - Fault processing method and system for accelerator pedal, vehicle and storage medium - Google Patents
Fault processing method and system for accelerator pedal, vehicle and storage medium Download PDFInfo
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- CN117141509A CN117141509A CN202311159890.6A CN202311159890A CN117141509A CN 117141509 A CN117141509 A CN 117141509A CN 202311159890 A CN202311159890 A CN 202311159890A CN 117141509 A CN117141509 A CN 117141509A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/0205—Diagnosing or detecting failures; Failure detection models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/038—Limiting the input power, torque or speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/0205—Diagnosing or detecting failures; Failure detection models
- B60W2050/0215—Sensor drifts or sensor failures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
The invention discloses a fault processing method, a system, a vehicle and a storage medium of an accelerator pedal, wherein the method comprises the following steps: acquiring first voltage data and second voltage data; performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result; determining a fault level according to a fault diagnosis result, wherein the fault level comprises a first level and a second level, and the first level indicates that the first position sensor and the second position sensor have faults; the second level indicates that the first position sensor or the second position sensor fails, or that the analysis opening degrees corresponding to the first position sensor and the second position sensor are different; and limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule. The invention solves the technical problems that in the prior art, after the fault of the accelerator pedal is detected, the signal of the accelerator pedal is usually and directly reset to zero, and certain potential safety hazard exists.
Description
Technical Field
The invention belongs to the technical field of vehicles, and particularly relates to a fault processing method and system of an accelerator pedal, a vehicle and a storage medium.
Background
The accelerator pedal position sensor converts the actual physical opening of the accelerator pedal into voltage output, the actual physical opening of the accelerator pedal is in direct proportion to the output voltage, and the VCU (vehicle control unit) can reversely obtain the accelerator pedal analysis opening by analyzing the voltage, so that the torque required by a driver is calculated. The voltage value sent by the sensor directly influences the magnitude of the required torque, and the accuracy is of great importance.
For accuracy and safety, two mutually independent "accelerator pedal position sensors" are now installed in vehicles to resolve the accelerator pedal opening. When the accelerator pedal is depressed, two mutually incoherent sensors calculate two mutually incoherent voltage values. The output voltage of the two changes along with the actual physical opening change of the accelerator pedal within a certain range, and the two are in a multiple relationship, and the VCU can verify the accuracy of the opening analysis value of the accelerator pedal by comparing the digital relationship of the two in real time.
In summary, it is important to identify and detect the failure of the accelerator pedal. In the prior art, various technologies related to accelerator pedal fault detection exist, however, in the prior art, an accelerator pedal signal is usually directly reset to zero after the accelerator pedal fault is detected, so that a certain potential safety hazard exists.
Disclosure of Invention
The embodiment of the invention provides a fault processing method, a system, a vehicle and a storage medium for an accelerator pedal, which at least solve the technical problems that in the prior art, after the accelerator pedal is detected to be faulty, an accelerator pedal signal is usually returned to zero directly, and a certain potential safety hazard exists.
According to a first aspect of the embodiment of the present invention, there is provided a fault handling method for an accelerator pedal, including: acquiring first voltage data and second voltage data, wherein the first voltage data corresponds to a first position sensor and the second voltage data corresponds to a second position sensor; performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result; determining a fault level according to a fault diagnosis result, wherein the fault level comprises a first level and a second level, and the first level indicates that the first position sensor and the second position sensor have faults; the second level indicates that the first position sensor or the second position sensor fails, or that the analysis opening degrees corresponding to the first position sensor and the second position sensor are different; and limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule.
Optionally, performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result includes: comparing the first voltage data with a first voltage preset threshold to obtain a first comparison result, and comparing the second voltage data with a second voltage preset threshold to obtain a second comparison result; performing fault diagnosis on the first position sensor according to the first comparison result to obtain a first diagnosis result, and performing fault diagnosis on the second position sensor according to the second comparison result to obtain a second diagnosis result; and determining a fault diagnosis result according to the first diagnosis result and the second diagnosis result.
Optionally, determining the fault level according to the fault diagnosis result includes: and determining that the fault level is the first level in response to the first diagnosis indicating that the first position sensor is faulty and the second diagnosis indicating that the second position sensor is faulty.
Optionally, determining the fault level according to the fault diagnosis result includes: responding to the first diagnosis result to indicate that the first position sensor fails, and the second diagnosis result to indicate that the second position sensor does not fail, and determining that the failure level is a second level; or, determining that the fault level is a second level in response to the first diagnostic result indicating that the first position sensor has not failed and the second diagnostic result indicating that the second position sensor has failed.
Optionally, performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result includes: determining a first analysis opening and a second analysis opening, wherein the first analysis opening is obtained by converting first voltage data, and the second analysis opening is obtained by converting second voltage data; performing fault diagnosis on the first position sensor and the second position sensor according to the first analysis opening degree and the second analysis opening degree to obtain a fault diagnosis result; determining the fault level based on the fault diagnosis result includes: and determining the fault level as a second level in response to the fault diagnosis result indicating that the first analysis opening degree is not equal to the second analysis opening degree.
Optionally, limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule includes: and in response to the fault level being the first level, limiting the analytic opening corresponding to the first voltage data and the second voltage data to 0% based on a preset analytic opening limiting rule.
Optionally, limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule includes: and responding to the fault level as a second level, and reducing the analytic opening corresponding to the first voltage data and the second voltage data according to a preset opening limiting proportion based on a preset analytic opening limiting rule.
According to a second aspect of the embodiment of the present invention, there is also provided a fault handling system for an accelerator pedal, including:
the acquisition module is used for acquiring first voltage data and second voltage data, wherein the first voltage data corresponds to the first position sensor, and the second voltage data corresponds to the second position sensor; the diagnosis module is used for carrying out fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result; the determining module is used for determining a fault level according to the fault diagnosis result, wherein the fault level comprises a first level and a second level, and the first level indicates that the first position sensor and the second position sensor are faulty; the second level indicates that the first position sensor or the second position sensor fails, or that the analysis opening degrees corresponding to the first position sensor and the second position sensor are different; the processing module is used for limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule.
Optionally, the diagnostic module is further configured to: comparing the first voltage data with a first voltage preset threshold to obtain a first comparison result, and comparing the second voltage data with a second voltage preset threshold to obtain a second comparison result; performing fault diagnosis on the first position sensor according to the first comparison result to obtain a first diagnosis result, and performing fault diagnosis on the second position sensor according to the second comparison result to obtain a second diagnosis result; and determining a fault diagnosis result according to the first diagnosis result and the second diagnosis result.
Optionally, the determining module is further configured to: and determining that the fault level is the first level in response to the first diagnosis indicating that the first position sensor is faulty and the second diagnosis indicating that the second position sensor is faulty.
Optionally, the determining module is further configured to: responding to the first diagnosis result to indicate that the first position sensor fails, and the second diagnosis result to indicate that the second position sensor does not fail, and determining that the failure level is a second level; or, determining that the fault level is a second level in response to the first diagnostic result indicating that the first position sensor has not failed and the second diagnostic result indicating that the second position sensor has failed.
Optionally, the diagnostic module is further configured to: determining a first analysis opening and a second analysis opening, wherein the first analysis opening is obtained by converting first voltage data, and the second analysis opening is obtained by converting second voltage data; performing fault diagnosis on the first position sensor and the second position sensor according to the first analysis opening degree and the second analysis opening degree to obtain a fault diagnosis result; the determination module is also for: and determining the fault level as a second level in response to the fault diagnosis result indicating that the first analysis opening degree is not equal to the second analysis opening degree.
Optionally, the processing module is further configured to: and in response to the fault level being the first level, limiting the analytic opening corresponding to the first voltage data and the second voltage data to 0% based on a preset analytic opening limiting rule.
Optionally, the processing module is further configured to: and responding to the fault level as a second level, and reducing the analytic opening corresponding to the first voltage data and the second voltage data according to a preset opening limiting proportion based on a preset analytic opening limiting rule.
According to a third aspect of embodiments of the present invention there is also provided a vehicle comprising a memory in which a computer program is stored and a processor arranged to run the computer program to perform the method of fault handling of an accelerator pedal as described in any of the embodiments of the first aspect above.
According to a fourth aspect of embodiments of the present invention, there is also provided a non-volatile storage medium in which a computer program is stored, wherein the computer program is arranged to perform the method of fault handling of an accelerator pedal as described in any of the embodiments of the first aspect above, when run on a computer or processor.
In the embodiment of the invention, first voltage data and second voltage data are acquired, wherein the first voltage data corresponds to a first position sensor, and the second voltage data corresponds to a second position sensor; performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result; determining a fault level according to a fault diagnosis result, wherein the fault level comprises a first level and a second level, and the first level indicates that the first position sensor and the second position sensor have faults; the second level indicates that the first position sensor or the second position sensor fails, or that the analysis opening degrees corresponding to the first position sensor and the second position sensor are different; and limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule. According to the method, the fault level is determined firstly, then the analysis opening of the accelerator pedal is limited according to the fault level and the preset analysis opening rule, so that the analysis opening change of the accelerator pedal is smoother, and the technical problem that in the prior art, after the fault of the accelerator pedal is detected, an accelerator pedal signal is usually returned to zero directly and a certain potential safety hazard exists is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a flow chart of a method of fault handling of an accelerator pedal according to one embodiment of the application;
FIG. 2 is a diagram illustrating comparison of resolution according to one embodiment of the present application;
FIG. 3 is a flow chart of a method of fault handling of an accelerator pedal according to one embodiment of the application;
fig. 4 is a block diagram of a failure processing system of an accelerator pedal according to one embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an embodiment of the present invention, there is provided an embodiment of a fault handling method for an accelerator pedal, it being noted that the steps shown in the flowchart of the drawings may be performed in a computer system containing at least one set of computer executable instructions, and that although a logical sequence is shown in the flowchart, in some cases the steps shown or described may be performed in a different order than here.
The method embodiments may also be performed in an electronic device, similar control device, or cloud, including a memory and a processor. Taking an electronic device as an example, the electronic device may include one or more processors and memory for storing data. Optionally, the electronic apparatus may further include a communication device for a communication function and a display device. It will be appreciated by those of ordinary skill in the art that the foregoing structural descriptions are merely illustrative and are not intended to limit the structure of the electronic device. For example, the electronic device may also include more or fewer components than the above structural description, or have a different configuration than the above structural description.
The processor may include one or more processing units. For example: the processor may include a processing device of a central processing unit (central processing unit, CPU), a graphics processor (graphics processing unit, GPU), a digital signal processing (digital signal processing, DSP) chip, a microprocessor (microcontroller unit, MCU), a programmable logic device (field-programmable gate array, FPGA), a neural network processor (neural-network processing unit, NPU), a tensor processor (tensor processing unit, TPU), an artificial intelligence (artificial intelligent, AI) type processor, or the like. Wherein the different processing units may be separate components or may be integrated in one or more processors. In some examples, the electronic device may also include one or more processors.
The memory may be used to store a computer program, for example, a computer program corresponding to the fault handling method of the accelerator pedal in the embodiment of the present invention, and the processor implements the fault handling method of the accelerator pedal by running the computer program stored in the memory. The memory may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, the memory may further include memory remotely located with respect to the processor, which may be connected to the electronic device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The communication device is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal. In one example, the communication device includes a network adapter (network interface controller, NIC) that can connect to other network devices through the base station to communicate with the internet. In one example, the communication device may be a Radio Frequency (RF) module for communicating with the internet wirelessly. In some embodiments of the present solution, the communication device is configured to connect to a mobile device such as a mobile phone, a tablet, or the like, and may send an instruction to the electronic apparatus through the mobile device.
The display devices may be touch screen type liquid crystal displays (liquid crystal display, LCD) and touch displays (also referred to as "touch screens" or "touch display screens"). The liquid crystal display may enable a user to interact with a user interface of the electronic device. In some embodiments, the electronic device has a graphical user interface (graphical user interface, GUI) with which a user can human interact by touching finger releases and/or gestures on the touch-sensitive surface, executable instructions for performing the human interaction functions described above being configured/stored in one or more processor-executable computer program products or readable storage media.
Fig. 1 is a flowchart of a fault handling method of an accelerator pedal according to one embodiment of the present invention, as shown in fig. 1, the method including the steps of:
step S101, acquiring first voltage data and second voltage data.
The first voltage data corresponds to the first position sensor, and the second voltage data corresponds to the second position sensor.
Specifically, two accelerator pedal position sensors, which are independent of each other, are typically provided for an accelerator pedal in a vehicle to resolve an accelerator pedal opening, and serve as a first position sensor and a second position sensor, respectively. The first voltage data includes an output signal voltage of the first position sensor and a sensor supply voltage, and the second voltage data includes an output signal voltage of the second position sensor and a sensor supply voltage.
It will be appreciated that the first and second position sensors corresponding to the accelerator pedal fail, i.e., indicate that the accelerator pedal is in failure.
Step S102, performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result.
Specifically, after the first voltage data and the second voltage data are obtained, fault diagnosis can be performed on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result. When the values of the first voltage data and the second voltage data are abnormal values, the corresponding position sensor is indicated to be faulty.
Step S103, determining the fault level according to the fault diagnosis result.
The fault level comprises a first level and a second level, wherein the first level indicates that the first position sensor and the second position sensor are faulty; the second level indicates that the first position sensor or the second position sensor fails, or that the analysis opening degrees corresponding to the first position sensor and the second position sensor are different.
Specifically, the diagnosis result includes fault conditions of the first position sensor and the second position sensor, and after the fault diagnosis result is obtained, a fault level of the accelerator pedal can be determined according to the fault diagnosis result.
For example, if the fault diagnosis result indicates that the first sensor fails and the second sensor fails, the current fault level is the second level. If the diagnosis result shows that the first position sensor and the second position sensor are both faulty, the current fault level is a first level.
The analytical opening degrees corresponding to the first position sensor and the second position sensor may be determined according to the first voltage data and the second voltage data.
It should be noted that, in the present invention, the first-level fault represents that the current fault level has resulted in the vehicle losing the driving ability, and it is recommended to contact with a maintenance person for maintenance; the second level fault represents that the current fault level has affected the normal driving running of the vehicle, the maximum driving power or the maximum driving capability of the system has been limited, and the vehicle needs to be repaired as soon as possible.
Step S104, limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule.
Specifically, after determining the fault level, a preset analysis opening limiting rule corresponding to the fault level can be determined according to the fault level so as to limit the analysis opening of the accelerator pedal.
It should be noted that different fault levels correspond to different preset analysis opening limiting rules.
In the embodiment of the invention, first voltage data and second voltage data are acquired, wherein the first voltage data corresponds to a first position sensor, and the second voltage data corresponds to a second position sensor; performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result; determining a fault level according to a fault diagnosis result, wherein the fault level comprises a first level and a second level, and the first level indicates that the first position sensor and the second position sensor have faults; the second level indicates that the first position sensor or the second position sensor fails, or that the analysis opening degrees corresponding to the first position sensor and the second position sensor are different; and limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule. According to the method, the fault level is determined firstly, then the analysis opening of the accelerator pedal is limited according to the fault level and the preset analysis opening rule, so that the analysis opening change of the accelerator pedal is smoother, and the technical problem that in the prior art, after the fault of the accelerator pedal is detected, an accelerator pedal signal is usually returned to zero directly and a certain potential safety hazard exists is solved.
It can be understood that, based on the method of the invention, when the accelerator pedal fails, the signal of the accelerator pedal is not directly zeroed, but different preset analysis opening rules are adopted to limit the analysis opening of the accelerator pedal to a certain extent according to different failure levels, so that the pedal opening after certain limitation can be analyzed under some failure levels.
Optionally, in step S102, performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result may include the following steps:
step S1021, comparing the first voltage data with a first voltage preset threshold to obtain a first comparison result, and comparing the second voltage data with a second voltage preset threshold to obtain a second comparison result.
Specifically, the first voltage data includes an output signal voltage and a sensor supply voltage corresponding to the first position sensor, and the first voltage preset threshold includes an upper limit value and a lower limit value of the output signal voltage corresponding to the first position sensor, and further includes an upper limit value and a lower limit value of the sensor supply voltage corresponding to the first position sensor. The second voltage data comprises output signal voltage and sensor power supply voltage corresponding to the second position sensor, the second voltage preset threshold comprises an upper limit value and a lower limit value of the output signal voltage corresponding to the second position sensor, and further comprises an upper limit value and a lower limit value of the sensor power supply voltage corresponding to the second position sensor.
Specifically, the first voltage data is compared with a first voltage preset threshold, namely, the upper limit value and the lower limit value of the output signal voltage in the first voltage data are compared with the upper limit value and the lower limit value of the output signal voltage in the first voltage preset threshold, the upper limit value and the lower limit value of the sensor power supply voltage in the first voltage data are compared with the upper limit value and the lower limit value of the sensor power supply voltage in the first voltage preset threshold, and a first comparison result is obtained after all the comparison is completed.
Specifically, the second voltage data is compared with a second voltage preset threshold, namely, the output signal voltage in the second voltage data is compared with the upper limit value and the lower limit value of the output signal voltage in the second voltage preset threshold, the sensor power supply voltage in the second voltage data is compared with the upper limit value and the lower limit value of the sensor power supply voltage in the second voltage preset threshold, and a second comparison result is obtained after all the comparison is completed.
Step S1022, performing fault diagnosis on the first position sensor according to the first comparison result to obtain a first diagnosis result, and performing fault diagnosis on the second position sensor according to the second comparison result to obtain a second diagnosis result.
For example, after the first comparison result is obtained, if the first diagnosis result indicates that the output signal voltage corresponding to the first position sensor and/or the sensor power supply voltage exceeds the limit value, the first diagnosis result indicates that the first position sensor fails.
For example, after the first comparison result is obtained, if the first diagnosis result indicates that the output signal voltage corresponding to the first position sensor and the sensor supply voltage do not exceed the limit value, the first diagnosis result indicates that the first position sensor has no fault.
For example, after the second comparison result is obtained, if the second diagnosis result indicates that the output signal voltage corresponding to the second position sensor and/or the sensor power supply voltage exceeds the limit value, the second diagnosis result indicates that the second position sensor fails.
The second diagnosis result indicates that the second position sensor has no fault if the output signal voltage corresponding to the second position sensor and the sensor power supply voltage do not exceed the limit value after the second comparison result is obtained.
Step S1023, determining a fault diagnosis result according to the first diagnosis result and the second diagnosis result.
Specifically, the fault diagnosis result includes three cases: the first position sensor and the second position sensor are in failure, the first position sensor or the second position sensor is in failure, and the analysis opening degrees corresponding to the first position sensor and the second position sensor are different.
Note that the normal condition in which neither the first position sensor nor the second position sensor has failed is not taken as a failure diagnosis result.
Optionally, determining the fault level according to the fault diagnosis result includes: and determining that the fault level is the first level in response to the first diagnosis indicating that the first position sensor is faulty and the second diagnosis indicating that the second position sensor is faulty.
Specifically, when the fault diagnosis result indicates that the first position sensor and the second position sensor are both faulty, the fault level is determined to be the first level.
Optionally, determining the fault level according to the fault diagnosis result includes: responding to the first diagnosis result to indicate that the first position sensor fails, and the second diagnosis result to indicate that the second position sensor does not fail, and determining that the failure level is a second level; or, determining that the fault level is a second level in response to the first diagnostic result indicating that the first position sensor has not failed and the second diagnostic result indicating that the second position sensor has failed.
Specifically, when the fault diagnosis result indicates that one of the first position sensor or the second position sensor is faulty, the fault level is determined to be the second level.
Optionally, performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result includes: determining a first analysis opening and a second analysis opening, wherein the first analysis opening is obtained by converting first voltage data, and the second analysis opening is obtained by converting second voltage data; performing fault diagnosis on the first position sensor and the second position sensor according to the first analysis opening degree and the second analysis opening degree to obtain a fault diagnosis result; determining the fault level based on the fault diagnosis result includes: and determining the fault level as a second level in response to the fault diagnosis result indicating that the first analysis opening degree is not equal to the second analysis opening degree.
Specifically, when the analysis opening degree corresponding to the first position sensor is different from the analysis opening degree corresponding to the second position sensor, the fault diagnosis result is that one of the first position sensor and the second position sensor fails. And when the fault diagnosis result shows that one of the first position sensor and the second position sensor fails, determining that the fault level is the second level.
Optionally, limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule includes: and in response to the fault level being the first level, limiting the analytic opening corresponding to the first voltage data and the second voltage data to 0% based on a preset analytic opening limiting rule.
Specifically, when the fault level is determined to be the first level, the preset analysis opening rule limits the analysis opening corresponding to the first voltage data and the second voltage data to 0%, that is, limits the analysis opening corresponding to the first voltage data and the second voltage data to 0% no matter what values the first voltage data and the second voltage data are.
When the fault level is determined to be the first level, the fault processing measures further comprise controlling the vehicle to store a fault code corresponding to the fault level, controlling the fault lamp to be turned on, pushing fault information to a mobile terminal bound with the vehicle, controlling the instrument panel to display the fault level, and controlling the vehicle-mounted voice system to output a fault voice prompt.
Optionally, limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule includes: and responding to the fault level as a second level, and reducing the analytic opening corresponding to the first voltage data and the second voltage data according to a preset opening limiting proportion based on a preset analytic opening limiting rule.
Specifically, after determining that the fault level is the second level, the preset analysis opening rule reduces the maximum analysis opening limit corresponding to the first voltage data and the second voltage data according to a preset opening limit proportion.
Specifically, when the fault is that one of the first position sensor or the second position sensor fails, the analysis opening corresponding to the position sensor which does not fail is adopted as the available analysis opening, and the analysis opening is limited.
The preset opening limiting proportion is obtained by calibrating according to the real vehicle.
Specifically, when the fault level is determined to be the first level, the fault processing measures further comprise controlling the vehicle to store a fault code corresponding to the fault level, controlling the fault lamp to be turned on, pushing fault information to a mobile terminal bound with the vehicle, controlling the instrument panel to display the fault level, and controlling the vehicle-mounted voice system to output a fault voice prompt. Upon determining that the fault level is the first level, the fault handling means further includes disabling the vehicle from autonomous driving, the disabled autonomous driving functions including autonomous parking, remote parking, proxy parking, memory parking, and L1, L2, and L3 level autonomous driving.
Referring to fig. 2, an exemplary preset opening limiting ratio is 50%, and the limiting method adopted by the present invention is a broken line corresponding to the method in fig. 2, and the original resolution opening of 1 to 100 is limited according to the ratio corresponding to the resolution opening of 1 to 50. The other method is the broken line corresponding to the other method in fig. 2, the analysis opening degree of 1 to 50 is not limited, after the analysis opening degree of 50 to 100 is originally analyzed, the driver does not have power feedback when stepping on the accelerator pedal vehicle, the driver can feel a stepping-on feeling, and if the driver is in the overtaking process, the overtaking failure is easy to occur, and the traffic accident is caused. The limiting mode of the invention can enable the whole process of the driver to have power feedback when the driver steps on the accelerator pedal, and can improve the driving experience of the driver.
Referring to fig. 3, in some embodiments of the invention, a method of fault handling of an accelerator pedal includes:
firstly judging whether an accelerator pedal fails A, if so, executing a measure D, wherein the failure A is that both the first position sensor and the second position sensor fail, and the measure D is that the analytic opening degrees corresponding to the first position sensor and the second position sensor are limited to 0;
if the accelerator pedal does not have a fault A, continuously judging whether the accelerator pedal has a fault B, and if the accelerator pedal has the fault B, executing a measure E, wherein the fault B is that one of a first position sensor and a second position sensor has a fault, the measure E is that the automatic driving function of the vehicle is disabled, the analysis opening corresponding to the position sensor which does not have the fault is used as an available analysis opening, and the maximum value of the available analysis opening is limited to be 50%;
if the accelerator pedal is not in failure B, continuing to judge whether the accelerator pedal is in failure C, and if the accelerator pedal is in failure C, executing a measure F, wherein the failure C is that the analysis opening degrees corresponding to the first position sensor and the second position sensor are different, the measure F is that the automatic driving function of the vehicle is disabled, the smaller one of the analysis opening degrees corresponding to the two position sensors is taken as the available analysis opening degree, and the maximum value of the available analysis opening degree is limited to be 50%.
If the accelerator pedal fails C, the fault detection process ends.
When any one of the above A, B, C faults occurs, a fault code corresponding to the fault is stored, text prompt is performed through an instrument, voice prompt is performed through a voice system, a fault lamp is controlled to be turned on, and fault information is pushed to a remote terminal bound with a vehicle.
From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus a necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The present embodiment also provides a fault handling system for an accelerator pedal, which is used to implement the foregoing embodiments and preferred embodiments, and will not be described in detail. As used below, the term "module" is a combination of software and/or hardware that can implement a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.
Fig. 4 is a block diagram of a failure processing system 200 of an accelerator pedal according to an embodiment of the present invention, as shown in fig. 4, by way of example of the failure processing system 200 of an accelerator pedal, including: an acquisition module 201, configured to acquire first voltage data and second voltage data, where the first voltage data corresponds to a first position sensor and the second voltage data corresponds to a second position sensor; the diagnostic module 202 is configured to perform fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result; a determining module 203, configured to determine a fault level according to a fault diagnosis result, where the fault level includes a first level and a second level, and the first level indicates that the first position sensor and the second position sensor are faulty; the second level indicates that the first position sensor or the second position sensor fails, or that the analysis opening degrees corresponding to the first position sensor and the second position sensor are different; the processing module 204 is configured to limit the resolution opening of the accelerator pedal according to the fault level and a preset resolution opening limiting rule.
Optionally, the diagnostic module 202 is further configured to: comparing the first voltage data with a first voltage preset threshold to obtain a first comparison result, and comparing the second voltage data with a second voltage preset threshold to obtain a second comparison result; performing fault diagnosis on the first position sensor according to the first comparison result to obtain a first diagnosis result, and performing fault diagnosis on the second position sensor according to the second comparison result to obtain a second diagnosis result; and determining a fault diagnosis result according to the first diagnosis result and the second diagnosis result.
Optionally, the determining module 203 is further configured to: and determining that the fault level is the first level in response to the first diagnosis indicating that the first position sensor is faulty and the second diagnosis indicating that the second position sensor is faulty.
Optionally, the determining module 203 is further configured to: responding to the first diagnosis result to indicate that the first position sensor fails, and the second diagnosis result to indicate that the second position sensor does not fail, and determining that the failure level is a second level; or, determining that the fault level is a second level in response to the first diagnostic result indicating that the first position sensor has not failed and the second diagnostic result indicating that the second position sensor has failed.
Optionally, the diagnostic module 202 is further configured to: determining a first analysis opening and a second analysis opening, wherein the first analysis opening is obtained by converting first voltage data, and the second analysis opening is obtained by converting second voltage data; performing fault diagnosis on the first position sensor and the second position sensor according to the first analysis opening degree and the second analysis opening degree to obtain a fault diagnosis result; the determining module 203 is further configured to: and determining the fault level as a second level in response to the fault diagnosis result indicating that the first analysis opening degree is not equal to the second analysis opening degree.
Optionally, the processing module 204 is further configured to: and in response to the fault level being the first level, limiting the analytic opening corresponding to the first voltage data and the second voltage data to 0% based on a preset analytic opening limiting rule.
Optionally, the processing module 204 is further configured to: and responding to the fault level as a second level, and reducing the analytic opening corresponding to the first voltage data and the second voltage data according to a preset opening limiting proportion based on a preset analytic opening limiting rule.
An embodiment of the invention also provides a vehicle including a memory having a computer program stored therein and a processor configured to run the computer program to perform the method of fault handling of an accelerator pedal described in any of the embodiments above.
Alternatively, in the present embodiment, the processor in the vehicle described above may be arranged to run a computer program to perform the steps of:
step S101, acquiring first voltage data and second voltage data.
Step S102, performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result.
Step S103, determining the fault level according to the fault diagnosis result.
Step S104, limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule.
Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments and optional implementations, and this embodiment is not described herein.
Embodiments of the present invention also provide a non-volatile storage medium in which a computer program is stored, wherein the computer program is configured to perform the method for fault handling of an accelerator pedal described in any of the above embodiments when run on a computer or processor.
Alternatively, in the present embodiment, the above-described computer program may be configured to store a computer program for performing the steps of:
step S101, acquiring first voltage data and second voltage data.
Step S102, performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result.
Step S103, determining the fault level according to the fault diagnosis result.
Step S104, limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule.
Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments and optional implementations, and this embodiment is not described herein.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In some embodiments provided by the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the modules may be divided into a logic function, and there may be other division manners in actual implementation, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with respect to each other may be through some interface, module or indirect coupling or communication connection of modules, electrical or otherwise.
The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules, i.e., may be located in one place, or may be distributed over a plurality of modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module. The integrated modules may be implemented in hardware or in software functional modules.
The integrated modules, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A fault handling method for an accelerator pedal, characterized by comprising:
acquiring first voltage data and second voltage data, wherein the first voltage data corresponds to a first position sensor, and the second voltage data corresponds to a second position sensor;
performing fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result;
determining a fault level according to the fault diagnosis result, wherein the fault level comprises a first level and a second level, and the first level represents that the first position sensor and the second position sensor have faults; the second level indicates that the first position sensor or the second position sensor fails, or that the analysis opening degrees corresponding to the first position sensor and the second position sensor are different;
And limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule.
2. The method of claim 1, wherein performing a fault diagnosis on the first position sensor and the second position sensor based on the first voltage data and the second voltage data to obtain a fault diagnosis result includes:
comparing the first voltage data with a first voltage preset threshold to obtain a first comparison result, and comparing the second voltage data with a second voltage preset threshold to obtain a second comparison result;
performing fault diagnosis on the first position sensor according to the first comparison result to obtain a first diagnosis result, and performing fault diagnosis on the second position sensor according to the second comparison result to obtain a second diagnosis result;
and determining the fault diagnosis result according to the first diagnosis result and the second diagnosis result.
3. The method according to claim 2, wherein the determining a failure level based on the failure diagnosis result includes:
and determining that the fault level is the first level in response to the first diagnosis indicating that the first position sensor is faulty and the second diagnosis indicating that the second position sensor is faulty.
4. The method according to claim 2, wherein the determining a failure level based on the failure diagnosis result includes:
determining that the fault level is the second level in response to the first diagnostic result indicating that the first position sensor is faulty and the second diagnostic result indicating that the second position sensor is not faulty;
or, determining that the fault level is the second level in response to the first diagnostic result indicating that the first position sensor has not failed and the second diagnostic result indicating that the second position sensor has failed.
5. The method of claim 1, wherein performing a fault diagnosis on the first position sensor and the second position sensor based on the first voltage data and the second voltage data to obtain a fault diagnosis result includes:
determining a first analysis opening degree and a second analysis opening degree, wherein the first analysis opening degree is obtained by converting the first voltage data, and the second analysis opening degree is obtained by converting the second voltage data;
Performing fault diagnosis on the first position sensor and the second position sensor according to the first analysis opening degree and the second analysis opening degree to obtain a fault diagnosis result;
the determining the fault level according to the fault diagnosis result comprises:
and determining that the fault level is the second level in response to the fault diagnosis result indicating that the first analysis opening degree is not equal to the second analysis opening degree.
6. The method for processing a fault of an accelerator pedal according to claim 1, wherein limiting the analysis opening of the accelerator pedal according to the fault level and a preset analysis opening limiting rule includes:
and responding to the fault level as the first level, and limiting the analytic opening corresponding to the first voltage data and the second voltage data to 0% based on the preset analytic opening limiting rule.
7. The method for processing a fault of an accelerator pedal according to claim 1, wherein limiting the analysis opening of the accelerator pedal according to the fault level and a preset analysis opening limiting rule includes:
and responding to the fault level as the second level, and reducing the analytic opening corresponding to the first voltage data and the second voltage data according to a preset opening limiting proportion based on the preset analytic opening limiting rule.
8. A fault handling system for an accelerator pedal, comprising:
the device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring first voltage data and second voltage data, the first voltage data corresponds to a first position sensor, and the second voltage data corresponds to a second position sensor;
the diagnosis module is used for carrying out fault diagnosis on the first position sensor and the second position sensor according to the first voltage data and the second voltage data to obtain a fault diagnosis result;
the determining module is used for determining a fault level according to the fault diagnosis result, wherein the fault level comprises a first level and a second level, and the first level represents that the first position sensor and the second position sensor have faults; the second level indicates that the first position sensor or the second position sensor fails, or that the analysis opening degrees corresponding to the first position sensor and the second position sensor are different;
and the processing module is used for limiting the analytic opening of the accelerator pedal according to the fault level and a preset analytic opening limiting rule.
9. A vehicle comprising a memory and a processor, characterized in that the memory has stored therein a computer program, the processor being arranged to run the computer program to perform the method of fault handling of an accelerator pedal as claimed in any of the preceding claims 1 to 7.
10. A non-volatile storage medium, characterized in that it has stored therein a computer program, wherein the computer program is arranged to perform the method of fault handling of an accelerator pedal as claimed in any of the preceding claims 1 to 7 when run on a computer or processor.
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| CN202311159890.6A CN117141509A (en) | 2023-09-08 | 2023-09-08 | Fault processing method and system for accelerator pedal, vehicle and storage medium |
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| CN202311159890.6A CN117141509A (en) | 2023-09-08 | 2023-09-08 | Fault processing method and system for accelerator pedal, vehicle and storage medium |
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