CN112798951A - Fault processing method and device, electronic equipment and storage medium - Google Patents
Fault processing method and device, electronic equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the invention discloses a fault processing method and device, electronic equipment and a storage medium. The method comprises the following steps: respectively recording the failure occurrence times of each failure detection point based on a counter of the failure detection point of a to-be-detected component arranged on a target detection object; if the number of the faults is detected to reach a preset triggering number threshold value within a preset fault confirmation time period, determining that the fault detection point has faults; acquiring target fault information of a fault detection point with a fault, determining a target fault grade based on the target fault information, and performing fault processing according to the target fault grade. According to the technical scheme of the embodiment of the invention, the fault of the motor of the automobile can be diagnosed more quickly, conveniently and accurately, so that the fault of the motor can be positioned accurately, the maintenance efficiency can be improved, the safety of the whole automobile can be better ensured, and the occurrence of greater harm can be avoided.
Description
Technical Field
The embodiment of the invention relates to the technical field of electronics, in particular to a fault processing method and device, electronic equipment and a storage medium.
Background
With the continuous development of the automobile industry, the automobile brings convenience to the life of people, and people pay more and more attention to the safety problem of the automobile. In order to improve the safety of automobiles, the diagnosis of a failure of an automobile motor becomes very important.
The existing automobile motor fault diagnosis is carried out on the motor of an automobile mostly through the knowledge and experience of automobile fault diagnosis technicians so as to diagnose the potential fault of the automobile.
When the automobile motor is diagnosed manually, the problems of poor diagnosis real-time performance, high labor cost and large error of a diagnosis result exist, so that the automobile motor fault cannot be diagnosed accurately in time.
Disclosure of Invention
The invention provides a fault processing method, a fault processing device, electronic equipment and a storage medium, which are used for realizing more rapid, convenient and accurate diagnosis of the fault of an automobile motor, so that the fault of the motor is accurately positioned, the maintenance efficiency is improved, the safety of the whole automobile is ensured, and greater harm is avoided.
In a first aspect, an embodiment of the present invention provides a fault handling method, where the method includes:
respectively recording the failure occurrence times of each failure detection point based on a counter of the failure detection point of a to-be-detected component arranged on a target detection object;
if the number of the faults is detected to reach a preset triggering number threshold value within a preset fault confirmation time period, determining that the fault detection point has faults;
acquiring target fault information of a fault detection point with a fault, determining a target fault grade based on the target fault information, and performing fault processing according to the target fault grade.
In a second aspect, an embodiment of the present invention further provides a fault handling apparatus, where the apparatus includes:
the fault occurrence frequency recording module is used for respectively recording the fault occurrence frequency of each fault detection point based on a counter of the fault detection point of the to-be-detected component arranged on the target detection object;
the fault confirming module is used for determining that the fault detection point has a fault if the detected fault occurrence frequency reaches a preset trigger frequency threshold value within a preset fault confirming time period;
and the fault processing module is used for acquiring target fault information of a fault detection point with a fault, determining a target fault grade based on the target fault information, and processing the fault according to the target fault grade.
In a third aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:
one or more processors;
a storage device for storing one or more programs which, when executed by the processor, cause the processor to implement the method of fault handling as provided by any of the embodiments of the invention.
In a fourth aspect, embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are used to perform a method of fault handling as provided by any of the embodiments of the present invention.
According to the technical scheme of the embodiment of the invention, the failure occurrence times of each failure detection point are respectively recorded through a counter of the failure detection point of a to-be-detected component arranged on a target detection object, the failure occurrence times of each failure detection point are obtained, if the failure occurrence times reach a preset trigger time threshold value in a preset failure confirmation time period, the failure occurrence times of the failure detection points are determined, the failure occurrence times recorded through the counter of each failure detection point, the preset confirmation time period and the preset trigger time threshold value are used for rapidly, conveniently and accurately determining the failure of the target detection object, the target failure information of the failed failure detection points is obtained, the target failure grade is determined based on the target failure information, the failure processing is carried out according to the target failure grade, and the problems that the failure diagnosis of the target detection object is inaccurate, the failure occurrence times, The technical problem of untimely detection is solved, the fault of the target detection object is timely and accurately determined, and the technical effect of better ensuring the safety of the target detection object is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, a brief description is given below of the drawings used in describing the embodiments. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.
Fig. 1 is a schematic flow chart of a fault handling method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a fault handling method according to a second embodiment of the present invention;
fig. 3 is a schematic flow chart of a fault handling method according to a third embodiment of the present invention;
fig. 4 is a schematic diagram of a module of a fault handling apparatus according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart illustrating a fault handling method according to an embodiment of the present invention, where the embodiment is applicable to a case where a fault is handled by setting a counter at a fault detection point and determining an occurring fault according to a count value of the counter, and the method may be executed by a fault handling apparatus, where the fault handling apparatus may be implemented by software and/or hardware, and the fault handling apparatus may be integrated in an electronic device such as a computer or a server.
As shown in fig. 1, the method of the present embodiment includes:
and S110, respectively recording the failure occurrence frequency of each failure detection point based on a counter of the failure detection points of the to-be-detected component arranged on the target detection object.
The target detection object may be a device to be detected, and the type of the device may be various, for example, an automobile, an air conditioner, a washing machine, and the like, and is not limited in detail herein. The component to be detected can be a component of a target detection object and consists of a plurality of parts assembled together. The detection point may be a to-be-detected position of the to-be-detected part, and the fault detection point may be understood as a to-be-detected position that is provided on the to-be-detected part and is used for detecting whether the to-be-detected part has a fault. The fault detection point may be determined based on the fault to be detected.
The relationship between the target detection object and the component to be detected may be a one-to-many relationship or a one-to-one relationship, that is, the target detection object may include one, two, or more than two components to be detected. Similarly, the relation between the part to be detected and the fault detection points may be a one-to-many relation, that is, the part to be detected may include one, two or more fault detection points. The relationship between the failure detection point and the counter is one-to-one, and may be one-to-many. For example, only one counter may be provided for each failure detection point, or two or more counters may be provided. When two or more counters are provided at the failure detection point, one counter may be activated as a main counter and the remaining counters as standby counters to be used when the main counter fails.
Specifically, a counter may be disposed at a fault detection point of the to-be-detected component of the target detection object, and the number of times of occurrence of a fault at the fault detection point may be recorded by the counter at the fault detection point. Alternatively, one failure detection point may detect one failure or multiple failures, one failure corresponding to one counter.
In one embodiment, a counter 1, a counter 2 and a counter 3 are respectively arranged at the positions of a fault detection point 1, a fault detection point 2 and a fault detection point 3 of a part 1 to be detected of a target detection object, and the times of fault occurrence of the fault detection point 1, the fault detection point 2 and the fault detection point 3, respectively, of the fault 1, the fault 2 and the fault 3 are respectively recorded through the counter 1, the counter 2 and the counter 3.
In another embodiment, a counter 1, a counter 2 and a counter 3 are arranged at a fault detection point 1 of a component 1 to be detected corresponding to target detection, and the counter 1 records the number of times of faults 1, 2 and 3 corresponding to the fault detection point 1.
S120, if the number of the faults is detected to reach a preset triggering number threshold value within a preset fault confirmation time period, determining that the fault detection point has faults.
The failure confirmation time may be a time period set empirically, for example, 500 milliseconds. Different fault detection points can correspondingly detect different faults, and the same fault can also be detected through different fault detection points, for example, a fault detection point 1 corresponds to a detection fault 1, and a fault detection point 2 corresponds to a fault 2. It is understood that the setting of the failure confirmation time periods for different failures may be the same or different, for example, the failure confirmation time period for failure 1 is 600 ms, and the failure confirmation time period for failure 2 is 800 ms.
The trigger number threshold may be an empirically set threshold, for example, 127 times. The threshold of the number of triggers may be set according to the type of the failure.
Specifically, the fault detection condition for each fault detection point may be set in advance according to the physical characteristics (e.g., voltage, current, temperature, etc.) of each fault occurrence. And determining the failure occurrence frequency recorded by the counter of each failure detection point according to the failure detection condition and the failure confirmation time period of each failure detection point. When detecting that the physical characteristic of the fault detection point reaches the detection condition of the fault detection point within the fault confirmation time period, the number of times of occurrence of the fault recorded by the counter of the fault detection point is increased by 1.
Illustratively, the number of times of failure occurrence of the counter in the failure detection point 1 is increased by 1 every time the voltage in 500 ms detected in the failure detection point 1 exceeds 5V, for example, in 500 ms from 8 point 10 min 30 s to 8 point 10 min 30 s, the counter in the failure detection point 1 records 0 in 8 point 10 min 30 s, the voltage in 100 ms in 8 point 10 min 30 s in the failure detection point 1 exceeds 5V, the counter in the failure detection point 1 records 0+1 as 1, the counter in the failure detection point 1 records 5V in 200 ms in 8 point 10 min 30 s, and the counter in the failure detection point 1 records 1 as 1+1 as 2.
Specifically, whether the fault detection point has a fault is determined according to a preset fault confirmation time period, a preset trigger time threshold and the fault occurrence times recorded by the counter of each fault detection point, specifically, when the fault occurrence times recorded by the counter of the fault detection point reaches the preset trigger threshold, the fault detection point has a fault, and when the fault occurrence times recorded by the counter of the fault detection point does not reach the preset trigger threshold, the fault detection point does not have a fault.
Illustratively, the voltage thresholds of the failure detection point 1, the failure detection point 2 and the failure detection point 3 of the component 1, which are preset according to experience, for the occurrence of the failure 1, the failure 2 and the failure 3, respectively, are 5V, 4.5V and 4V. The failure confirmation durations of failure 1, failure 2, and failure 3 are empirically preset to be 500 milliseconds, 600 milliseconds, and 700 milliseconds, respectively. The triggering occurrence frequency threshold of the fault is preset to be 127 times according to experience. The number of times that the voltage at the failure detection point 1 exceeds 5V within 500 msec is 90, the number of times of failure occurrence recorded by the counter at the failure detection point 1 is 90. The number of times that the voltage at the failure detection point 2 exceeds 4.5V within 600 msec is 100, the number of times of failure occurrence recorded by the counter at the failure detection point 2 is 100. The number of times that the voltage of the fault detection point 3 exceeds 4V in 700 milliseconds is 127, the number of times of fault occurrence recorded by the counter of the fault detection point 3 reaches the trigger occurrence number threshold of the fault, that is, the number of times of fault occurrence recorded by the counter of the fault detection point 3 reaches 127, and then it is determined that the fault 1 occurs at the fault detection point 1.
S130, acquiring target fault information of a fault detection point with a fault, determining a target fault grade based on the target fault information, and performing fault processing according to the target fault grade.
The target fault information may include a fault name, a fault code, and a fault description content. The failure level may be a level in which the failure is set in advance according to the degree of urgency of the failure. The corresponding relationship between the fault information and the counters may be that one fault information corresponds to one counter, and one fault information corresponds to one, two or more counters.
In the embodiment of the present invention, the target failure information is a failure code as an example. Specifically, when a fault occurs in the fault detection point, the fault code of the fault detection point in which the fault occurs is acquired. And determining the fault grade corresponding to the fault code of the fault detection point with the fault according to the mapping relation between the preset fault code and the fault grade. And determining a target fault level according to the high level and the low level of the preset fault level. And determining a processing method corresponding to the target fault grade according to the processing method corresponding to the fault grade and the fault grade, and processing the fault generated at the fault detection point according to a processing method corresponding to a preset target fault grade.
Illustratively, the target fault information of the fault detection point 1 is a fault code 1, the target fault information of the fault detection point 2 is a fault code 2, the fault level corresponding to the fault code 1 is a secondary fault, the fault level corresponding to the fault code 2 is a tertiary fault, and the fault level of the tertiary fault is higher than that of the secondary fault, so that the target fault level is a tertiary fault, and the fault occurring at the fault detection point 2 is processed according to the fault processing method corresponding to the tertiary fault. It should be noted that the failure detection point 1 and the failure detection point 2 are detection points of different parts.
Optionally, the failure confirmation time period and the trigger time threshold corresponding to the failure information of each failure detection point are respectively determined.
Specifically, a corresponding relationship between the fault information of each fault detection point and the fault confirmation time is preset, and a corresponding relationship between the fault information of each fault detection point and the trigger time threshold is preset. And determining the fault confirmation time corresponding to the fault information of each fault detection point according to the preset corresponding relation between the fault information of each fault detection point and the fault confirmation time. And determining a trigger time threshold corresponding to the fault information of each fault detection point according to the preset corresponding relation between the fault information of each fault detection point and the trigger time threshold.
On this basis, optionally, at least two counters are arranged at the fault detection point; correspondingly, after the number of times of occurrence of the fault is detected to reach a preset threshold of triggering times within a preset fault confirmation time period, the method further includes: and determining a target counter reaching a preset trigger time threshold, and performing zero clearing treatment on counters of the fault detection points except the target counter. The advantage of setting in this way is that the same component is prevented from reporting multiple fault information, which results in inaccurate fault location.
Illustratively, the failure detection point 1 is provided with a counter 1, a counter 2, and a counter 3 to record the number of failure occurrences of the failure 1, the failure 2, and the failure 3, respectively. The voltage threshold values of the faults 1, 2 and 3 are 5V, 4.5V and 4V according to the presetting. The threshold number of trigger occurrences for fault 1, fault 2, and fault 3 was empirically set to 127 times.
When the preset confirmation time lengths of the faults 1, 2 and 3 are the same (for example, 900 milliseconds), a counter which firstly reaches a trigger occurrence frequency threshold value of the preset fault is taken as a target counter, the fault occurring at the fault detection point is determined according to the corresponding relation between the counter and the fault, for example, the value of the counter 1 reaches 127 at 500 milliseconds, the values of the counter 2 and the counter 3 do not reach 127, namely the fault 1 is firstly triggered, namely the fault 1 occurs at the fault detection point 1, and simultaneously, the counters corresponding to the fault 2 and the fault 3 at the fault detection point 1 are cleared.
According to the technical scheme of the embodiment of the invention, the failure occurrence times of each failure detection point are respectively recorded by the counter based on the failure detection points of the to-be-detected component arranged on the target detection object, so that the failure occurrence times of each failure detection point are obtained. And if the number of the detected faults reaches the preset triggering time threshold value within the preset fault confirmation time period, determining that the fault detection points have faults, and quickly, conveniently and accurately determining the faults of the target detection object through the number of the faults recorded by the counter of each fault detection point, the preset confirmation time period and the preset triggering time threshold value. The target fault information of the fault detection point with the fault is obtained, the target fault grade is determined based on the target fault information, and the fault is processed according to the target fault grade, so that the technical problems that the fault diagnosis of the target detection object is inaccurate and untimely are solved, the fault of the target detection object is determined timely and accurately, and the technical effect of better ensuring the safety of the target detection object is achieved.
Example two
Fig. 2 is a schematic flow chart of a fault processing method provided in the second embodiment of the present invention, and on the basis of the foregoing embodiment, optionally, the fault processing method of this embodiment may further include: if the number of the fault occurrences is detected not to reach the preset number threshold value within the fault confirmation time period, reducing the number of the fault occurrences recorded by the counter; and when the count value of the counter reaches a preset lower limit threshold value, determining that the fault detection point is restored to a normal working state.
As shown in fig. 2, the method of the embodiment may specifically include:
s210, respectively recording the failure occurrence frequency of each failure detection point based on a counter of the failure detection points of the to-be-detected component arranged on the target detection object.
S220, if the number of the faults is detected to reach a preset triggering number threshold value within a preset fault confirmation time period, determining that the fault detection point has faults.
S230, acquiring target fault information of a fault detection point with a fault, determining a target fault grade based on the target fault information, and performing fault processing according to the target fault grade.
S240, if the number of the faults is detected not to reach the preset number threshold value in the fault confirmation time period, reducing the number of the faults recorded by the counter.
The decreasing of the number of occurrences of the fault recorded by the counter may be understood as subtracting 1 from the number of occurrences of the fault recorded by the counter corresponding to the fault or clearing the fault.
Specifically, according to preset fault detection conditions and fault confirmation time periods of each fault, when it is detected that the physical characteristics of the fault do not reach the fault detection conditions, the number of times of fault occurrence recorded by a counter corresponding to the fault is reduced by 1 or cleared.
In one implementation, when the number of occurrences of the detected fault at the current time does not reach the preset number threshold within the preset confirmation time period, and the fault detection result obtained by detecting the fault detection point at the current time does not satisfy the corresponding fault detection condition, the number of occurrences of the fault recorded by the counter corresponding to the fault is reduced. Further, if the number of occurrences of the fault corresponding to the fault other than the fault in the fault detection point corresponding to the fault is sent to a preset number threshold, the value of the counter corresponding to the fault is cleared.
In another embodiment, when it is detected that the number of times of occurrence of the fault at the current time does not reach the preset number threshold within the preset fault confirmation time, and the fault detection result obtained by detecting the fault detection point at the current time does not satisfy the corresponding fault detection condition, the number of times of occurrence of the fault recorded by the counter corresponding to the fault may be kept unchanged.
Illustratively, the preset number threshold is 127, and the detection point condition of the preset fault 1 is: when the voltage exceeds 5V, a fault 1 occurs, the number of times of fault occurrence recorded by a counter corresponding to the fault 1 is 5 at 8 points, 10 minutes and 31 seconds, and when the voltage of the fault 1 within 8 seconds is detected not to exceed 5V, the number of times of fault occurrence recorded by the counter corresponding to the fault 1 is reduced. And if the fault occurrence frequency recorded by the counter corresponding to the fault 1 reaches a preset frequency threshold value, reporting the fault 1.
It should be noted that, if the fault detection result does not satisfy the corresponding fault detection condition, it may be understood that the fault detection point is determined to be in a normal operation state at the current time based on the fault detection condition.
And S250, when the count value of the counter reaches a preset lower limit threshold, determining that the fault detection point is restored to a normal working state.
The preset lower threshold may be set empirically, and specific values thereof are not limited herein.
Specifically, when the count value of the counter detecting the fault detection point reaches a preset lower threshold (for example, the lower threshold is-128), it is characterized that the fault detection point may be recovered to a normal operating state.
Illustratively, the preset lower threshold is-128, and when the count value of the counter at the fault detection point 1 reaches-128, the counter representing the fault detection point 1 is restored to the normal working state.
It should be noted that the above reference numbers are only examples of the order of executing the steps of the present embodiment, and are not limiting.
According to the technical scheme of the embodiment, the failure occurrence frequency of each failure detection point is respectively recorded by a counter based on the failure detection points of a part to be detected arranged on a target detection object, the failure occurrence frequency of each failure detection point is obtained, if the failure occurrence frequency is detected to reach a preset trigger frequency threshold value in a preset failure confirmation time period, the failure occurrence frequency of the failure detection points is determined, the failure occurrence frequency recorded by the counter of each failure detection point, the preset confirmation time period and the preset trigger frequency threshold value are used for rapidly, conveniently and accurately determining the failure of the target detection object, if the failure occurrence frequency is detected not to reach the preset frequency threshold value in the failure confirmation time period, the failure occurrence frequency recorded by the counter is reduced, and when the counting value of the counter reaches a preset lower limit threshold value, the failure detection points are determined to be recovered to a normal working state, the technical problems that the fault diagnosis of the target detection object is inaccurate, untimely and reported by mistake are solved, the fault of the target detection object is determined timely and accurately, and the safety of the target detection object is better ensured.
EXAMPLE III
Fig. 3 is a schematic flow chart of a fault handling method according to a third embodiment of the present invention, and on the basis of the foregoing embodiments, optionally, the target detection object includes a hybrid electric vehicle; the hybrid electric vehicle is provided with a motor to be detected; the acquiring target fault information of the fault detection point with the fault, and determining a target fault level based on the target fault information includes: and acquiring a target fault code of the fault detection point with the fault based on the fault detection point, and determining a target fault grade based on the target fault code.
As shown in fig. 3, the method of the present embodiment may specifically include:
s310, respectively recording the failure occurrence frequency of each failure detection point based on a counter of the failure detection points of the to-be-detected component arranged on the target detection object.
The target detection object may be a hybrid vehicle provided with a Motor to be detected, wherein the Motor to be detected may be a transmission Motor Generator (GMG).
The part to be detected can be a gearbox motor generator or a part forming a motor to be detected. Illustratively, the components to be detected may include, but are not limited to, power sensors, voltage sensors, phase current sensors, temperature sensors, and the like.
Illustratively, one failure detection point may detect a variety of failure information. Taking the fault detection point as the position sensor detection point as an example, the fault information that the position sensor detection point can detect but is not limited to can be detected may include but is not limited to the following faults: a fault in which the position sensor is short-circuited to a power supply, a fault in which the position sensor is short-circuited to ground, a fault in which the position sensor is open, a fault in which the position sensor exceeds an upper limit of a range, a fault in which the position sensor exceeds a lower limit of the range, a fault in which the position sensor is stuck, and the like.
Illustratively, a counter is arranged at each fault detection point of a position sensor of a hybrid electric vehicle provided with a motor to be detected, specifically, a counter 1 is arranged at the fault detection point of the position sensor short-circuited to a power supply, a counter 2 is arranged at the fault detection point of the position sensor short-circuited to the ground, a counter 3 is arranged at the fault detection point of the position sensor open-circuited, a counter 4 is arranged at the fault detection point of the position sensor exceeding the upper limit of the range, a counter 5 is arranged at the fault detection point of the position sensor exceeding the lower limit of the range, and a counter 6 is arranged at the fault detection point of the position sensor stuck. The counter 1, the counter 2, the counter 3, the counter 4, the counter 5 and the counter 6 record the failure occurrence frequency of the position sensor for the fault detection point of the power supply short circuit, the fault detection point of the position sensor for the ground short circuit, the fault detection point of the position sensor open circuit, the fault detection point of the position sensor exceeding the upper limit of the range, the fault detection point of the position sensor exceeding the lower limit of the range and the fault detection point of the position sensor jamming respectively.
S320, if the number of the faults is detected to reach a preset triggering number threshold value within a preset fault confirmation time period, determining that the fault detection point has faults.
Specifically, the detection conditions of the fault detection points corresponding to the faults are preset according to the physical characteristics of the faults of the motor to be detected of the hybrid electric vehicle. For example, the fault of the position sensor is detected by detecting the magnitude of phase voltage as a detection condition, the fault of the phase current sensor is detected by detecting the magnitude of phase current as a detection condition, the open-circuit fault of the PCB temperature sensor is detected by detecting the voltage of the PCB as a detection condition, the fault that the PCB temperature sensor exceeds a high range, the fault that the temperature sensor exceeds an upper limit or rationality is detected by detecting the temperature of the PCB as a detection condition, the fault that the CAN communication is lost is detected by detecting whether a key signal of the whole vehicle controller cannot be received or not as a detection condition, the fault that the CAN bus is disconnected is detected by detecting whether the communication with the.
Specifically, according to the detection conditions of fault detection points corresponding to each fault of a motor to be detected of the hybrid electric vehicle, when the fault occurrence frequency recorded by a counter for detecting each fault detection point of each part of the motor to be detected of the hybrid electric vehicle reaches a preset trigger frequency threshold value, it is determined that the part to be detected corresponding to the counter of the motor to be detected has a fault.
It should be noted that, in the embodiment of the present invention, the position sensor of the motor to be detected of the hybrid electric vehicle is used as the part to be detected for description, and the part to be detected is not limited.
For example, when the voltage of the fault detection point of the preset position sensor for power supply short circuit exceeds 5V, the position sensor is triggered to perform power supply short circuit fault. And when the voltage of the fault detection point of the preset position sensor short circuit to the ground exceeds 4.5V, triggering the position sensor short circuit to the ground fault. And when the voltage of the fault detection point of the preset position sensor open circuit exceeds 4.3V, triggering the position sensor open circuit fault. And when the voltage of a fault detection point of the preset position sensor exceeding the upper limit of the range exceeds 4.1V, triggering the fault of the position sensor exceeding the upper limit of the range. And when the voltage of a fault detection point of the preset position sensor exceeding the lower limit of the range exceeds 3.8V, triggering the fault of the position sensor exceeding the lower limit of the range. The confirmation time of the position sensor to the power supply short circuit is 600 milliseconds, the confirmation time of the position sensor open-circuit fault is 700 milliseconds, the confirmation time of the position sensor out-of-range upper limit fault is 800 milliseconds, the confirmation time of the position sensor to the ground short circuit fault is 400 milliseconds and the confirmation time of the position sensor out-of-range lower limit fault is 500 milliseconds. The preset trigger number threshold is 127. The counter values of the counters of the fault detection point of the position sensor for power supply short circuit, the fault detection point of the position sensor for ground short circuit, the fault detection point of the position sensor for open circuit, the fault detection point of the position sensor exceeding the upper limit of the range and the fault detection point of the position sensor exceeding the lower limit of the range are 127, 102, 124, 101 and 30 respectively. When the count value of the counter for detecting the fault detection point of the position sensor for the power supply short circuit reaches a preset trigger time threshold value, for example, the count value of the counter for detecting the power supply short circuit of the position sensor reaches 127, it is determined that the fault occurring in the position sensor is the power supply short circuit fault of the position sensor corresponding to the fault detection point of the position sensor for the power supply short circuit.
S330, acquiring a target fault code of a fault detection point with a fault based on the fault detection point, determining a target fault grade based on the target fault code, and performing fault processing according to the target fault grade.
Specifically, the fault code corresponding to the faulty detection point is determined according to the incidence relation between the faulty detection point and the fault and the incidence relation between the fault and the fault code. And determining the fault grade of the fault code corresponding to the fault detection point with the fault according to the mapping relation between the fault code and the fault grade, and processing the fault according to the fault grade. It will be appreciated that fault ratings are generally used to indicate the degree of urgency and/or severity of the fault handling.
Illustratively, the fault code corresponding to the position sensor open-circuit fault occurring in the position sensor is fault code 1, the four-level fault corresponding to the fault code 1, and the four-level fault corresponding to the four-level fault, and the position sensor open-circuit fault occurring in the position sensor is processed according to the four-level fault processing mode.
Illustratively, the relationship table of the failure level and the failure information may be as shown in table 1, table 2, and table 3. Table 1 is a fault information table corresponding to the fourth-level fault, table 2 is a fault information table corresponding to the third-level fault, and table 3 is a fault information table corresponding to the second-level fault. The primary fault may be monitoring the GMG motor's rate of temperature change signal GMGTRate and if 100% <gmgtrate < 120%, the motor begins to reduce power output.
TABLE 1 Fault information Table corresponding to four-level faults
TABLE 1
TABLE 2 Fault information Table for three-level Fault correspondences
TABLE 3 Fault information Table for Secondary Fault
| Name of Chinese | English name | English full scale |
| CAN communication loss fault | CAN COM Lost | CAN communication lost |
| CAN bus turn-off failure | CAN Busoff Fault | CAN bus off fault |
Optionally, the performing fault processing according to the target fault level includes at least one of the following: the motor to be detected enters an active short-circuit mode, a fault lamp on an instrument panel is lightened to generate first prompt information, and the first prompt information is displayed; the motor to be detected enters a stator bridge open circuit mode, a fault lamp on an instrument panel is lightened to generate second prompt information, and the second prompt information is displayed; the motor to be detected enters a zero-torque mode, a fault lamp on an instrument panel is lightened to generate third prompt information, and the third prompt information is displayed; and the motor to be detected enters a power reduction mode.
The prompt message may be a first prompt message, a second prompt message, and a third prompt message, and the prompt message may be presented in various forms, for example, in a sound form, a vibration form, a prompt element display form, and the like. The sound form may include a voice form, a buzzer form, or the like. Correspondingly, the prompt information can be displayed in a voice playing prompt mode, a vibration prompt mode, a flashing indicating lamp mode or a preset color display mode.
The first, second, and third ones of the first, second, and third presentation information are merely presentation information for distinguishing the corresponding failure levels, and are not limited to the order or content of the presentation information.
The active short circuit mode can be that all upper bridge arms Mosfet at the driving side of the stator are disconnected, all lower bridge arms Mosfet at the driving side of the stator are closed, and meanwhile, the whole vehicle is disconnected with a shaft of the gearbox connected with the motor to be detected. The first prompt message may be a prompt message that a very serious fault occurs in the motor to be detected.
The stator bridge open circuit mode can be that all mosfets on the driving side of the stator are switched off, and the whole vehicle limits the rotating speed of the motor to be detected to be below a certain rotating speed. The second prompt message may be a prompt message that the motor to be detected has a major fault.
The zero-torque mode is to be understood as that the output torque of the motor to be detected is zero in the mode. The third prompt message may be a prompt message that the motor to be detected has a communication fault.
The power reduction mode can be understood that the output power of the motor to be detected is limited, and the power reduction mode can be that the vehicle control unit reduces the power of the motor to be detected.
Optionally, the performing fault processing according to the target fault level includes: and if at least two kinds of target fault information are acquired and at least two target fault levels are determined based on the at least two kinds of target fault information, processing the fault according to the priority of the target fault levels. Illustratively, a fault code corresponding to an open-circuit fault of the position sensor is a fault code 1, a fault code corresponding to an open-circuit fault of the radiator temperature sensor is a fault code 2, a four-stage fault corresponding to the fault code 1, and a three-stage fault corresponding to the fault code 2, and when it is set that faults of different levels exist at the same time, a fault with a high level is processed, that is, a fault is processed according to the four-stage fault corresponding to the fault code 1.
According to the technical scheme, the number of times of fault occurrence of each fault detection point of the to-be-detected component is recorded by the counter based on the corresponding fault detection points of the to-be-detected component arranged on the to-be-detected motor of the hybrid electric vehicle, so that the number of times of fault occurrence of each detection point of the to-be-detected motor is obtained. And if the number of the faults reaches a preset triggering time threshold value within a preset fault confirmation time period, determining that the fault detection points have faults, and quickly, conveniently and accurately determining the faults of the motor to be detected of the hybrid electric vehicle through the number of the faults recorded by the counter of each fault detection point, the preset confirmation time period and the preset triggering time threshold value. The method comprises the steps of obtaining a target fault code of a fault detection point with a fault based on a fault detection point, determining a target fault grade based on the target fault code, and carrying out fault processing according to the target fault grade, so that the technical problems that the fault diagnosis of a target detection object is inaccurate and untimely are solved, the fault of the target detection object is timely and accurately determined, and the technical effect of better ensuring the safety of the target detection object is achieved.
Example four
Fig. 4 is a schematic block diagram of a fault handling apparatus according to a fourth embodiment of the present invention, where the fault handling apparatus includes: a failure occurrence number recording module 410, a failure confirmation module 420 and a failure processing module 430.
The failure occurrence frequency recording module 410 is configured to record the failure occurrence frequency of each failure detection point based on a counter of the failure detection point of the to-be-detected component arranged on the target detection object; a failure confirmation module 420, configured to determine that a failure occurs at the failure detection point if the number of occurrences of the failure reaches a preset trigger number threshold within a preset failure confirmation time period; the fault processing module 430 is configured to obtain target fault information of a fault detection point where a fault occurs, determine a target fault level based on the target fault information, and perform fault processing according to the target fault level.
According to the technical scheme of the embodiment, the failure occurrence frequency recording module is used for recording the failure occurrence frequency of each failure detection point based on the counter of the failure detection point of the to-be-detected component arranged on the target detection object respectively to obtain the failure occurrence frequency of each failure detection point. And if the number of the detected faults reaches the preset triggering time threshold value within the preset fault confirmation time period, determining that the fault detection points have faults, and quickly, conveniently and accurately determining the faults of the target detection object through the number of the faults recorded by the counter of each fault detection point, the preset confirmation time period and the preset triggering time threshold value. The target fault information of the fault detection point with the fault is obtained through the fault processing module, the target fault grade is determined based on the target fault information, and the fault processing is carried out according to the target fault grade, so that the technical problem that the fault diagnosis of the target detection object is inaccurate and untimely is solved, the fault of the target detection object is timely and accurately determined, and the technical effect of better ensuring the safety of the target detection object is achieved.
Optionally, the apparatus further comprises: a failure recovery module 440, configured to decrease the number of occurrences of the failure recorded by the counter if it is detected that the number of occurrences of the failure does not reach the preset number threshold within the failure confirmation time period; and when the count value of the counter reaches a preset lower limit threshold value, determining that the fault detection point is restored to a normal working state.
Optionally, the failure recovery module 440 is configured to reduce the number of occurrences of the failure recorded by the counter corresponding to the failure if it is detected that the number of occurrences of the failure at the current time does not reach a preset number threshold within a preset confirmation time period, and a failure detection result obtained by detecting the failure detection point at the current time does not satisfy the corresponding failure detection condition.
Optionally, the component to be detected includes at least two fault detection points; accordingly, the apparatus may further include: and the failure confirmation module 420 is configured to perform zero clearing processing on counters of failure detection points of the component to be detected, except for a failure detection point where a failure occurs, after the number of times of occurrence of the failure is detected to reach a preset trigger number threshold within a preset failure confirmation time period.
Optionally, the target detection object includes a hybrid vehicle; the hybrid electric vehicle is provided with a motor to be detected; and the fault processing module 430 is configured to obtain a target fault code of a fault detection point where a fault occurs based on the fault detection point, and determine a target fault level based on the target fault code.
Optionally, the fault handling module 430 is configured to perform fault handling according to the target fault level, where the fault handling module includes at least one of the following: the motor to be detected enters an active short-circuit mode, a fault lamp on an instrument panel is lightened to generate first prompt information, and the first prompt information is displayed; the motor to be detected enters a stator bridge open circuit mode, a fault lamp on an instrument panel is lightened to generate second prompt information, and the second prompt information is displayed; the motor to be detected enters a zero-torque mode, a fault lamp on an instrument panel is lightened to generate third prompt information, and the third prompt information is displayed; and the motor to be detected enters a power reduction mode.
Optionally, the fault processing module 430 is configured to, if at least two types of target fault information are obtained and at least two types of target fault levels are determined based on the at least two types of target fault information, process the fault according to the priority of the target fault levels.
The device can execute the fault processing method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of executing the fault processing method.
It should be noted that, the units and modules included in the apparatus are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the embodiment of the invention.
EXAMPLE five
Fig. 5 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present invention. FIG. 5 illustrates a block diagram of an exemplary device 50 suitable for use in implementing embodiments of the present invention. The device 50 shown in fig. 5 is only an example and should not bring any limitation to the function and scope of use of the embodiments of the present invention.
As shown in FIG. 5, device 50 is embodied in a general purpose computing device. The components of the device 50 may include, but are not limited to: one or more processors or processing units 501, a system memory 502, and a bus 503 that couples the various system components (including the system memory 502 and the processing unit 501).
The system memory 502 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)504 and/or cache memory 505. The device 50 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 506 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to the bus 503 by one or more data media interfaces. Memory 502 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 508 having a set (at least one) of program modules 507 may be stored, for instance, in memory 502, such program modules 507 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 507 generally perform the functions and/or methodologies of embodiments of the invention as described herein.
The processing unit 501 executes various functional applications and data processing, for example, implementing a fault handling method provided by an embodiment of the present invention, by running a program stored in the system memory 502.
EXAMPLE six
An embodiment of the present invention also provides a storage medium containing computer-executable instructions for performing a fault handling method when executed by a computer processor.
The method comprises the following steps:
respectively recording the failure occurrence times of each failure detection point based on a counter of the failure detection point of a to-be-detected component arranged on a target detection object;
if the number of the faults is detected to reach a preset triggering number threshold value within a preset fault confirmation time period, determining that the fault detection point has faults;
acquiring target fault information of a fault detection point with a fault, determining a target fault grade based on the target fault information, and performing fault processing according to the target fault grade.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for embodiments of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method of fault handling, comprising:
respectively recording the failure occurrence times of each failure detection point based on a counter of the failure detection point of a to-be-detected component arranged on a target detection object;
if the number of the faults is detected to reach a preset triggering number threshold value within a preset fault confirmation time period, determining that the fault detection point has faults;
acquiring target fault information of a fault detection point with a fault, determining a target fault grade based on the target fault information, and performing fault processing according to the target fault grade.
2. The method of claim 1, further comprising:
if the number of the fault occurrences is detected not to reach the preset number threshold value within the fault confirmation time period, reducing the number of the fault occurrences recorded by the counter;
and when the count value of the counter reaches a preset lower limit threshold value, determining that the fault detection point is restored to a normal working state.
3. The method of claim 2, wherein if it is detected that the number of occurrences of the fault does not reach the preset number threshold within the fault confirmation time period, then decreasing the number of occurrences of the fault recorded by the counter comprises:
and if the occurrence frequency of the faults at the current moment is detected to be not higher than a preset frequency threshold value in a preset confirmation time period, and the fault detection result obtained by detecting the fault detection point at the current moment is that the corresponding fault detection condition is not met, reducing the occurrence frequency of the faults recorded by a counter corresponding to the fault.
4. Method according to claim 1, characterized in that the fault detection point is provided with at least two counters;
correspondingly, after the number of times of occurrence of the fault is detected to reach a preset threshold of triggering times within a preset fault confirmation time period, the method further includes:
and determining a target counter reaching a preset trigger time threshold, and performing zero clearing treatment on counters of the fault detection points except the target counter.
5. The method according to claim 1, wherein the target detection object includes a hybrid vehicle; the hybrid electric vehicle is provided with a motor to be detected;
the acquiring target fault information of the fault detection point with the fault, and determining a target fault level based on the target fault information includes:
and acquiring a target fault code of the fault detection point with the fault based on the fault detection point, and determining a target fault grade based on the target fault code.
6. The method of claim 5, wherein the fault handling according to the target fault level comprises at least one of:
the motor to be detected enters an active short-circuit mode, a fault lamp on an instrument panel is lightened to generate first prompt information, and the first prompt information is displayed;
the motor to be detected enters a stator bridge open circuit mode, a fault lamp on an instrument panel is lightened to generate second prompt information, and the second prompt information is displayed;
the motor to be detected enters a zero-torque mode, a fault lamp on an instrument panel is lightened to generate third prompt information, and the third prompt information is displayed;
and the motor to be detected enters a power reduction mode.
7. The method of claim 1, wherein the performing fault handling according to the target fault level comprises:
and if at least two kinds of target fault information are acquired and at least two target fault levels are determined based on the at least two kinds of target fault information, processing the fault according to the priority of the target fault levels.
8. An apparatus for fault handling, comprising:
the fault occurrence frequency recording module is used for respectively recording the fault occurrence frequency of each fault detection point based on a counter of the fault detection point of the to-be-detected component arranged on the target detection object;
the fault confirming module is used for determining that the fault detection point has a fault if the detected fault occurrence frequency reaches a preset trigger frequency threshold value within a preset fault confirming time period;
and the fault processing module is used for acquiring target fault information of a fault detection point with a fault, determining a target fault grade based on the target fault information, and processing the fault according to the target fault grade.
9. An electronic device, characterized in that the electronic device comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the processor, cause the processor to implement the method of fault handling as claimed in any one of claims 1 to 7.
10. A storage medium containing computer-executable instructions for performing the method of fault handling according to any one of claims 1-7 when executed by a computer processor.
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