CN110909419B - Automobile safety integrity performance level calculation method, device and server - Google Patents
Automobile safety integrity performance level calculation method, device and server Download PDFInfo
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Abstract
The method is applied to the technical field of automobiles, firstly, the preset operation scene elements and the preset driving functions of a target vehicle are obtained, the operation scene of the target vehicle is constructed according to the preset operation scene elements, then the function failure mode of the preset driving functions is further determined, a hazard event is generated according to the operation scene and the function failure mode, and finally, the automobile safety complete performance level of the target vehicle is determined when the hazard event occurs. The method for calculating the automobile safety integrity performance level can realize quantitative calculation of ASIL, and further provides basic data for software and hardware design of the vehicle.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to an automobile safety integrity performance level calculating method, an automobile safety integrity performance level calculating device and a server.
Background
Depending on the particular function implemented, automobiles include numerous control systems, such as airbag systems, brake systems, engine control systems, and the like.
In the working function safety design of various systems of a vehicle, one step which is extremely important in the early stage is to carry out hazard analysis and risk assessment on each system, identify the hazard of the system, assess the risk level of the hazard, namely ASIL (Automotive Safety Integration Level, automobile safety integrity level), and instruct the design of hardware and software according to the assessment result, and in the development stage of the vehicle, the safety performance of the vehicle is assessed comprehensively as far as possible, and the design of the vehicle is improved according to the assessment result, so that the ASIL assessment on the vehicle has extremely important effect.
In view of the importance of ASIL evaluation, how to implement quantitative calculation of ASIL and guide the software and hardware design of a vehicle according to the calculation result is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention aims to provide a method, a device and a server for calculating the safety and integrity performance level of an automobile, which perform quantitative calculation on ASIL and provide basic data for software and hardware design of the automobile, and the specific scheme is as follows:
in a first aspect, the present invention provides a method for calculating a safety integrity performance level of an automobile, including:
acquiring a preset operation scene element and a preset driving function of a target vehicle;
constructing an operation scene of the target vehicle according to the preset operation scene elements;
determining a functional failure mode of the preset driving function;
generating a hazard event according to the operation scene and the functional failure mode;
and determining the automobile safety integrity performance level of the target vehicle when the hazard event occurs.
Optionally, the preset operation scene element at least includes: a location element, a driving state element, a surrounding environment element, a road situation element, and a user-specified element.
Optionally, the generating a hazard event according to the operation scene and the functional failure mode includes:
calling a first preset mapping relation, wherein the first preset mapping relation records the corresponding relation among an operation scene, a functional failure mode and a hazard event;
and determining a hazard event corresponding to the operation scene of the target vehicle and the functional failure mode of the preset driving function according to the first preset mapping relation.
Optionally, the determining the automobile safety integrity performance level of the target vehicle when the hazard event occurs includes:
calculating the exposure level, the severity level and the control level of the target vehicle when the hazard event occurs;
and determining the automobile safety integrity performance level of the target vehicle according to the exposure level, the severity level and the control level.
Optionally, the determining the automobile safety integrity performance level of the target vehicle according to the exposure level, the severity level, and the control level includes:
if the product of the exposure level, the severity level and the control level is not zero, calculating the sum of the exposure level, the severity level and the control level to obtain an evaluation value corresponding to the automobile safety integrity performance level of the target vehicle;
determining the automobile safety complete performance level of the target vehicle according to a second preset mapping relation and the evaluation value, wherein the corresponding relation between the evaluation value and the automobile safety complete performance level is recorded in the second preset mapping relation;
if the product of the exposure level, the severity level and the control level is zero, determining that the evaluation value of the safety integrity performance level of the target vehicle is zero;
and determining the automobile safety integrity performance level of the target vehicle according to the second preset mapping relation and the evaluation value.
In a second aspect, the present invention provides an automotive safety integrity performance level calculation apparatus comprising:
the acquisition unit is used for acquiring preset operation scene elements and preset driving functions of the target vehicle;
the construction unit is used for constructing the operation scene of the target vehicle according to the preset operation scene elements;
a first determining unit configured to determine a functional failure mode of the preset driving function;
the generating unit is used for generating a hazard event according to the operation scene and the functional failure mode;
and the second determining unit is used for determining the automobile safety integrity performance level of the target automobile when the hazard event occurs.
Optionally, the generating unit is configured to generate, according to the operation scenario and the functional failure mode, a hazard event, where the hazard event specifically includes:
calling a first preset mapping relation, wherein the first preset mapping relation records the corresponding relation among an operation scene, a functional failure mode and a hazard event;
and determining a hazard event corresponding to the operation scene of the target vehicle and the functional failure mode of the preset driving function according to the first preset mapping relation.
Optionally, the second determining unit is configured to determine, when the hazard event occurs, an automotive safety integrity performance level of the target vehicle, where the second determining unit specifically includes:
calculating the exposure level, the severity level and the control level of the target vehicle when the hazard event occurs;
and calculating the automobile safety integrity performance grade of the target vehicle according to the exposure grade, the severity grade and the control grade.
Optionally, the second determining unit is configured to determine, according to the exposure level, the severity level, and the control level, an automotive safety integrity performance level of the target vehicle, where the determining unit specifically includes:
if the product of the exposure level, the severity level and the control level is not zero, calculating the sum of the exposure level, the severity level and the control level to obtain an evaluation value corresponding to the automobile safety integrity performance level of the target vehicle;
determining the automobile safety complete performance level of the target vehicle according to a second preset mapping relation and the evaluation value, wherein the corresponding relation between the evaluation value and the automobile safety complete performance level is recorded in the second preset mapping relation;
if the product of the exposure level, the severity level and the control level is zero, determining that the evaluation value of the safety integrity performance level of the target vehicle is zero;
and determining the automobile safety integrity performance level of the target vehicle according to the second preset mapping relation and the evaluation value.
In a third aspect, the present invention provides a server comprising: a memory and a processor; the memory stores a program adapted to be executed by the processor to implement the method for calculating the safety integrity performance level of an automobile according to any one of the first aspects of the present invention.
Based on the technical scheme, the automobile safety integrity performance level calculating method provided by the invention comprises the steps of firstly obtaining the preset operation scene elements and the preset driving functions of the target automobile, constructing the operation scene of the target automobile according to the preset operation scene elements, then further determining the function failure mode of the preset driving functions, generating a hazard event according to the operation scene and the function failure mode, and finally determining the automobile safety integrity performance level of the target automobile when the hazard event occurs. The method for calculating the automobile safety integrity performance level can realize quantitative calculation of ASIL, and further provides basic data for software and hardware design of the vehicle.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flowchart of a method for calculating a safety integrity performance level of an automobile according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a preset operation scene element provided in an embodiment of the present invention;
fig. 3 is a schematic view of a scenario when the method for calculating the safety integrity performance level of the automobile according to the embodiment of the present invention is applied to an automatic parking function;
fig. 4 is a schematic flow chart of an automotive safety integrity performance level calculation method applied to an automatic parking function according to an embodiment of the present invention;
FIG. 5 is a block diagram of an apparatus for calculating a safety integrity level of an automobile according to an embodiment of the present invention;
fig. 6 is a block diagram of a server according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a flowchart of a method for calculating an automobile safety integrity performance level according to an embodiment of the present invention, where the method may be applied to an electronic device, where the electronic device may be a user device with data processing capability, such as a notebook computer, a PC (personal computer), etc., and obviously, the electronic device may also be implemented by a server on a network side in some cases; referring to fig. 1, the method for calculating the safety integrity performance level of the automobile provided by the embodiment of the invention may include:
s100, acquiring a preset operation scene element and a preset driving function of the target vehicle.
In order to avoid repeated analysis of a plurality of equivalent hazard scenes or missing of hazard events with higher safety integrity performance levels when hazard analysis and risk assessment are performed on a target vehicle, the embodiment of the invention classifies preset operation scene elements of the target vehicle, a tester can select the classified preset operation scene elements according to the classified preset operation scene elements provided by the embodiment of the invention when the safety integrity performance levels are calculated on the target vehicle, and then a server or other electronic equipment executing the vehicle safety integrity performance level calculation method provided by the embodiment of the invention executes subsequent steps according to the received preset operation scene elements selected by the tester. In the embodiment of the invention, the classified preset operation scene elements are displayed to the testers, and the testers only need to select according to the test requirements, so that the repeated analysis of a plurality of equivalent hazard scenes or the omission of hazard events with higher safety and integrity performance levels can be effectively avoided.
Optionally, referring to fig. 2, fig. 2 is a schematic diagram of a preset operation scene element provided by the embodiment of the present invention, and according to what is shown in fig. 2, it can be seen that in the method for calculating a vehicle safety integrity performance level provided by the embodiment of the present invention, the preset operation scene element at least includes a location element, a driving state element, a surrounding environment element, a road condition element, and a user-specified element, where each element may be further specifically subdivided into multiple specific components,
the location elements are mainly divided into two major categories, road type and vehicle service. The road types include high-speed, rural roads, urban roads, unidirectional roads, parking areas and the like; vehicle services include cleaning, repair, and fueling services, etc.
The driving state elements are mainly classified into two main categories, speed and direction. The speed is divided into a constant speed and an acceleration and deceleration speed, and the vehicle behaviors related to the direction include left and right steering, lane changing overtaking, straight running, head dropping and the like.
The surrounding elements are mainly other traffic participants around the vehicle and are mainly divided from the two angles of static and dynamic. The other vehicles may be on the side of the target vehicle, opposite to the target vehicle, or may follow the target vehicle or be a lead vehicle of the target vehicle with respect to the direction of movement of the target vehicle. The pedestrian or non-motor vehicle direction has three directions, facing the target vehicle (the target vehicle can be seen), facing away from the target vehicle (the target vehicle cannot be seen), and sideways across the road (the target vehicle may be observed).
Road condition elements are closely related to weather, surrounding environment and self conditions, and are mainly divided from three aspects of friction, visibility and curvature. Wherein, rain, snow, frost, ice, wet sliding leaves or road sprinkling can reduce the frictional force on road surface, evening, heavy rain, heavy fog, falling leaves (covering lane lines) and sprinkling operation can reduce the detection capability of the camera, and the bending degree of the road often leads to the occurrence of the hazard event of the highest safety level.
The user-specified elements are mainly whether or not a driver is present in the vehicle, whether or not a passenger is present in the vehicle, whether or not a person is wearing a seat belt in the vehicle, whether or not the vehicle uses a turn signal lamp, and the like.
From the foregoing, it is known that the location element is mainly used to characterize the operation location of the vehicle, and the operation location of the vehicle is often related to the use of intelligent driving, so the location element is one of the main elements; the driving state elements are mainly used for representing the movement behavior of the vehicle; changes in the dynamic behaviour of the vehicle tend to trigger a hazard event, and therefore the driving state element of the vehicle is another major element, which is germane to the division of functional failure modes. The surrounding environmental factors are related to the changes of the driving behavior of the vehicle, and directly influence the type of the vehicle collision and the severity of the collision event; abrupt changes in road condition elements are often important factors for vehicle function errors, and extreme road conditions also tend to result in the most dangerous collisions; finally, the user-specified element is broadly designated as other elements than the above elements, and is determined based on specific input information of the user.
S110, constructing an operation scene of the target vehicle according to the preset operation scene elements.
After the preset operation scene elements are obtained, the operation scene of the target vehicle can be constructed according to the obtained information. Of course, in the process of constructing the operation scene of the target vehicle, all the obtained preset operation scene elements need to be comprehensively utilized, so that omission or misuse is avoided.
For example, the specific preset operation scene elements obtained are respectively: the location element is an intersection; the driving state element is straight running; the surrounding environment elements are pedestrians on the road; the road condition element is a wet slippery road; the user-specified elements are traffic lights arranged at the intersections, and on the premise of the preset operation scene elements, the operation scene of the formed target vehicle is as follows: at an intersection with traffic lights, a target vehicle runs straight, a road is slippery, and pedestrians pass through the intersection.
S120, determining a functional failure mode of a preset driving function.
As described above, the preset driving function is obtained, and in practical application, is input by a tester. The preset driving function is often a function to be tested, and in most cases, is a new driving function of the target vehicle. It is conceivable that for the same driving function, different functional failure modes may be corresponding in different cases, and that the functional failure modes of the preset driving function may be selected and set as required during the specific test.
S130, generating a hazard event according to the operation scene and the functional failure mode.
And generating corresponding hazard events under the determined operation scene and the determined functional failure mode.
Optionally, the embodiment of the present invention provides a first preset mapping relationship recorded with a corresponding relationship between an operation scene, a functional failure mode and a hazard event, and after determining the operation scene of the target vehicle and the functional failure mode of the preset driving function of the target vehicle, the first preset mapping relationship is called, and the hazard event corresponding to the operation scene of the target vehicle and the functional failure mode of the preset driving function of the target vehicle can be determined according to the first preset mapping relationship.
Alternatively, the first preset mapping relationship may have various expression forms, for example, may be embodied in a table form, and specifically, referring to table 1, table 1 exemplarily shows an optional form of the first preset mapping relationship. It should be noted that, in the prior art, the method for recording the above-mentioned corresponding relationship is optional, and the specific form of the first preset mapping relationship is not limited in the present invention.
TABLE 1
And S140, determining the automobile safety integrity performance level of the target automobile when a hazard event occurs.
After determining the hazard event that the target vehicle has occurred, an automotive safety integrity performance level may be calculated for the target vehicle. Specifically, the automobile safety integrity performance level consists of three parameters, namely an exposure level, a severity level and a control level, wherein the exposure level is used for representing the occurrence probability of the running scene of the target vehicle, and the severity level is used for representing the injury degree of personnel when a hazard event occurs; the control level is the ability of all traffic participants to control to avoid the occurrence of a hazard event.
Alternatively, the exposure level may be calculated in conjunction with table 2, with the exposure level indicated by letter E in table 2.
TABLE 2
The probability of a running scenario occurring can be expressed as:
P C ＝P 1 *P 2 *P 3 *P 4 *P 5
wherein P is 1 Calculating an equivalent value representing a probability of a location element;
P 2 calculating an equivalent value representing a probability of driving state elements;
P 3 calculating an equivalent value representing the probability of the surrounding element;
P 4 calculating an equivalent value of probability representing the road condition element;
P 5 calculating an equivalent value representing a probability of a user-specified element;
P C representing the probability of the occurrence of the running scenario.
For example, in the case where the hazard event due to the excessive power shown in table 1 occurs, the location element is a campus road, P 1 =1; the driving state element is straight, P 2 =1; the surrounding environment elements are vehicles in front, P 3 =1; the road condition element is a wet road surface, P 4 =0.1; the user designates the element as unmanned, P 5 =1. In the running scene again, P C ＝P 1 *P 2 *P 3 *P 4 *P 5 By looking up table 2, the exposure of the target vehicle in the running scene is E3 level.
Alternatively, the severity level may be determined in conjunction with table 3, with the severity level indicated by the letter S in table 3.
TABLE 3 Table 3
| Severity grade S | 0 | 1 | 2 | 3 |
| Evaluation criteria | No harm is caused | Mild or moderate injury | Severe injury of | Fatal injury |
| [0, 10) kph crash vehicle | [10, 20) kph crash vehicle | [20, 30) kph crash vehicle | >=30kph collision vehicle | |
| [0, 5) kph pedestrian impact | [5, 15) kph pedestrian impact | [15, 20) kph pedestrian impact | >=20kph pedestrian impact | |
| …… | …… | …… | …… | …… |
Alternatively, the control level may be determined in conjunction with table 4, with the control level indicated by the letter C in table 4.
TABLE 4 Table 4
After the exposure degree grade, the severity degree grade and the control degree grade are obtained, the automobile safety and integrity performance grade of the target automobile can be obtained through calculation according to the specific values of the three.
Specifically, if the product of the exposure level, the severity level and the control level is not zero, calculating the sum of the exposure level, the severity level and the control level to obtain an evaluation value corresponding to the automobile safety integrity performance level of the target automobile, and then determining the automobile safety integrity performance level of the target automobile according to the second preset mapping relation and the evaluation value. The second preset mapping relation records the corresponding relation between the evaluation value and the automobile safety integrity performance level.
And if the product of the exposure level, the severity level and the control level is zero, determining that the evaluation value of the automobile safety integrity performance level of the target automobile is zero, and then determining the automobile safety integrity performance level of the target automobile according to the second preset mapping relation.
Alternatively, as can be seen from the foregoing calculation, the exposure level, the severity level, and the control level may be represented by specific values, and then an evaluation value corresponding to the safety integrity level of the target vehicle may be calculated according to the corresponding values. The exposure level, the severity level and the control level can also be represented by corresponding letters, and corresponding modes of representing the safety and integrity performance levels of the automobile can also be used for grading different evaluation values, and the corresponding letters are used for representing the safety and integrity performance levels of the automobile, namely, contents recorded in a second preset relation.
Alternatively, referring to table 5, table 5 shows an alternative representation of the second preset mapping relationship.
TABLE 5
| ASIL grade | QM | A | B | C | D |
| Equation calculation value | 0-6 | 7 | 8 | 9 | 10 |
In summary, by the method for calculating the safety integrity performance level of the automobile provided by the embodiment of the invention, quantitative calculation of ASIL can be realized, and basic data is provided for software and hardware design of the automobile.
The following describes the execution process of the automobile safety integrity performance level calculation method provided by the embodiment of the invention by taking an autonomous parking function of an intelligent driving vehicle as an example.
Optionally, referring to fig. 3, fig. 3 is a schematic view of a scenario when the method for calculating the safety integrity level of an automobile according to the embodiment of the present invention is applied to an automatic parking function (AVP function), and in the scenario shown in fig. 3, the meanings indicated by the reference numerals are as follows:
1-intelligent driving of the vehicle; 2-the user operates the mobile phone; 3-building; 4-driving state; 5-high-precision map cloud; 6-road condition; 7-traffic signal lamp; 8-place; 9-planning a path; 10-a mobile phone application end; 11-a parking start position; 12-parking space; 13-lane lines; 14—an ambient element. The content corresponding to the reference numerals not mentioned in the above embodiments can be regarded as the content corresponding to the user-specified elements.
In the application scenario shown in fig. 3, referring to fig. 4, fig. 4 is a schematic flow chart of the method for calculating the safety integrity performance level of the automobile when the method is applied to an automatic parking function, specifically, fig. 4 shows a specific setting condition of a preset operation scenario element and a functional failure mode, and a hazard event is determined on the basis of the specific setting condition, and finally, a corresponding ASIL evaluation condition of a target vehicle under the condition of the hazard event is calculated.
The following describes an automobile safety integrity performance level calculating device provided by the embodiment of the invention, and the automobile safety integrity performance level calculating device described below can be regarded as a functional module architecture to be set in a central device for implementing the automobile safety integrity performance level calculating method provided by the embodiment of the invention; the following description may be referred to with respect to the above.
Fig. 5 is a block diagram of an apparatus for calculating a safety integrity performance level of an automobile according to an embodiment of the present invention, and referring to fig. 5, the apparatus may include:
an acquisition unit 10 for acquiring a preset operation scene element and a preset driving function of the target vehicle;
a construction unit 20, configured to construct an operation scene of the target vehicle according to the preset operation scene element;
a first determining unit 30 for determining a functional failure mode of the preset driving function;
a generating unit 40, configured to generate a hazard event according to the operation scenario and the functional failure mode;
a second determining unit 50 is configured to determine an automotive safety integrity performance level of the target vehicle when the hazard event occurs.
Optionally, the generating unit 40 is configured to generate, according to the operation scenario and the functional failure mode, a hazard event, where the hazard event specifically includes:
calling a first preset mapping relation, wherein the first preset mapping relation records the corresponding relation among an operation scene, a functional failure mode and a hazard event;
and determining a hazard event corresponding to the operation scene of the target vehicle and the functional failure mode of the preset driving function according to the first preset mapping relation.
Optionally, the second determining unit 50 is configured to determine, when the hazard event occurs, an automotive safety integrity performance level of the target vehicle, specifically including:
calculating the exposure level, the severity level and the control level of the target vehicle when the hazard event occurs;
and calculating the automobile safety integrity performance grade of the target vehicle according to the exposure grade, the severity grade and the control grade.
Optionally, the second determining unit 50 is configured to determine, according to the exposure level, the severity level, and the control level, an automotive safety integrity performance level of the target vehicle, where the determining unit specifically includes:
if the product of the exposure level, the severity level and the control level is not zero, calculating the sum of the exposure level, the severity level and the control level to obtain an evaluation value corresponding to the automobile safety integrity performance level of the target vehicle;
determining the automobile safety complete performance level of the target vehicle according to a second preset mapping relation and the evaluation value, wherein the corresponding relation between the evaluation value and the automobile safety complete performance level is recorded in the second preset mapping relation;
if the product of the exposure level, the severity level and the control level is zero, determining that the evaluation value of the safety integrity performance level of the target vehicle is zero;
and determining the automobile safety integrity performance level of the target vehicle according to the second preset mapping relation and the evaluation value.
Optionally, referring to fig. 6, fig. 6 is a block diagram of a server according to an embodiment of the present invention, and referring to fig. 6, the method may include: at least one processor 100, at least one communication interface 200, at least one memory 300, and at least one communication bus 400;
in the embodiment of the present invention, the number of the processor 100, the communication interface 200, the memory 300 and the communication bus 400 is at least one, and the processor 100, the communication interface 200 and the memory 300 complete the communication with each other through the communication bus 400; it will be apparent that the communication connection schematic shown in the processor 100, the communication interface 200, the memory 300 and the communication bus 400 shown in fig. 6 is only optional;
alternatively, the communication interface 200 may be an interface of a communication module, such as an interface of a GSM module;
the processor 100 may be a central processing unit CPU, or a specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of the present invention.
The memory 300, which stores application programs, may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.
The processor 100 is specifically configured to execute an application program in the memory, so as to implement any one of the embodiments of the method for calculating the automobile safety integrity level.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A method for calculating the safety integrity performance level of an automobile, comprising the steps of:
acquiring a preset operation scene element and a preset driving function of a target vehicle;
constructing an operation scene of the target vehicle according to the preset operation scene elements; wherein, the preset operation scene element at least comprises: a location element, a driving state element, a surrounding environment element, a road condition element, and a user-specified element;
determining a functional failure mode of the preset driving function;
generating a hazard event according to the operation scene and the functional failure mode;
determining the automobile safety integrity performance level of the target vehicle when the hazard event occurs;
wherein, when the hazard event occurs, determining the automobile safety integrity performance level of the target vehicle includes:
calculating the exposure level, the severity level and the control level of the target vehicle when the hazard event occurs;
determining an automobile safety integrity performance level of the target vehicle according to the exposure level, the severity level and the control level;
wherein said determining an automotive safety integrity performance level of said target vehicle based on said exposure level, said severity level, and said control level comprises:
if the product of the exposure level, the severity level and the control level is not zero, calculating the sum of the exposure level, the severity level and the control level to obtain an evaluation value corresponding to the automobile safety integrity performance level of the target vehicle;
determining the automobile safety complete performance level of the target vehicle according to a second preset mapping relation and the evaluation value, wherein the corresponding relation between the evaluation value and the automobile safety complete performance level is recorded in the second preset mapping relation;
if the product of the exposure level, the severity level and the control level is zero, determining that the evaluation value of the safety integrity performance level of the target vehicle is zero;
and determining the automobile safety integrity performance level of the target vehicle according to the second preset mapping relation and the evaluation value.
2. The method of claim 1, wherein generating a hazard event from the operational scenario and the functional failure mode comprises:
calling a first preset mapping relation, wherein the first preset mapping relation records the corresponding relation among an operation scene, a functional failure mode and a hazard event;
and determining a hazard event corresponding to the operation scene of the target vehicle and the functional failure mode of the preset driving function according to the first preset mapping relation.
3. An automotive safety integrity performance level computing device, comprising:
the acquisition unit is used for acquiring preset operation scene elements and preset driving functions of the target vehicle;
the construction unit is used for constructing the operation scene of the target vehicle according to the preset operation scene elements; wherein, the preset operation scene element at least comprises: a location element, a driving state element, a surrounding environment element, a road condition element, and a user-specified element;
a first determining unit configured to determine a functional failure mode of the preset driving function;
the generating unit is used for generating a hazard event according to the operation scene and the functional failure mode;
the second determining unit is used for determining the automobile safety integrity performance level of the target automobile when the hazard event occurs;
the second determining unit is configured to determine, when the hazard event occurs, an automotive safety integrity performance level of the target vehicle, where the second determining unit specifically includes:
calculating the exposure level, the severity level and the control level of the target vehicle when the hazard event occurs;
determining an automobile safety integrity performance level of the target vehicle according to the exposure level, the severity level and the control level;
the second determining unit is configured to determine, according to the exposure level, the severity level, and the control level, an automotive safety integrity performance level of the target vehicle, where the second determining unit specifically includes:
if the product of the exposure level, the severity level and the control level is not zero, calculating the sum of the exposure level, the severity level and the control level to obtain an evaluation value corresponding to the automobile safety integrity performance level of the target vehicle;
determining the automobile safety complete performance level of the target vehicle according to a second preset mapping relation and the evaluation value, wherein the corresponding relation between the evaluation value and the automobile safety complete performance level is recorded in the second preset mapping relation;
if the product of the exposure level, the severity level and the control level is zero, determining that the evaluation value of the safety integrity performance level of the target vehicle is zero;
and determining the automobile safety integrity performance level of the target vehicle according to the second preset mapping relation and the evaluation value.
4. The apparatus for calculating the safety integrity level of an automobile according to claim 3, wherein the generating unit is configured to, when generating a hazard event according to the operation scenario and the functional failure mode, specifically include:
calling a first preset mapping relation, wherein the first preset mapping relation records the corresponding relation among an operation scene, a functional failure mode and a hazard event;
and determining a hazard event corresponding to the operation scene of the target vehicle and the functional failure mode of the preset driving function according to the first preset mapping relation.
5. A server, comprising: a memory and a processor; the memory stores a program adapted to be executed by the processor to implement the automobile safety integrity performance level calculation method as claimed in claim 1 or 2.
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| CN111400823B (en) * | 2020-03-27 | 2022-03-29 | 清华大学 | Functional safety concept analysis method for intelligent vehicle VS-LKA system |
| CN111679646A (en) * | 2020-04-28 | 2020-09-18 | 华东师范大学 | Formalization-based automobile electronic system safety target confirmation method |
| CN112418711A (en) * | 2020-12-07 | 2021-02-26 | 安徽江淮汽车集团股份有限公司 | Method, device, storage medium and device for evaluating damage of expected function of vehicle |
| CN112918459B (en) * | 2021-01-29 | 2022-07-05 | 中汽创智科技有限公司 | System for avoiding unexpected steering and control method |
| CN113094704B (en) * | 2021-03-31 | 2023-02-17 | 中国汽车技术研究中心有限公司 | Method and system for grading safety risk of automobile part information based on hybrid analysis |
| CN113065195B (en) * | 2021-04-02 | 2023-04-14 | 中国第一汽车股份有限公司 | Vehicle information security threat assessment method, device, medium and electronic equipment |
| CN113627711A (en) * | 2021-06-21 | 2021-11-09 | 东风汽车集团股份有限公司 | Risk assessment method for vehicle function safety and related equipment |
| CN113619572B (en) * | 2021-07-26 | 2023-06-16 | 中汽创智科技有限公司 | Vehicle safety processing method, device, equipment and storage medium |
| CN114348009B (en) * | 2022-01-27 | 2024-05-03 | 中国第一汽车股份有限公司 | Functional safety concept stage analysis method and brake control system |
| CN115271424A (en) * | 2022-05-20 | 2022-11-01 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Method and device for identifying product use danger based on scene and computer equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Non-Patent Citations (1)
| Title |
|---|
| 基于ISO标准的道路车辆线控转向系统的功能安全概念设计;荣芩;吴晓东;许敏;;汽车安全与节能学报(03);全文 * |
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