CN114715069B

CN114715069B - Automobile collision processing system and method

Info

Publication number: CN114715069B
Application number: CN202110011536.3A
Authority: CN
Inventors: 曾繁波; 杜波涛; 陈小刚
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2023-07-25
Anticipated expiration: 2041-01-05
Also published as: CN114715069A

Abstract

The invention discloses an automobile collision processing system and method, which are suitable for an automobile with a hidden electric door handle, wherein the system comprises: the collision sensor is used for generating a collision signal when the automobile collides; the safety air bag control module is used for receiving collision signals from the collision sensor and determining whether to send out safety control signals or not based on the collision signals; and the door handle control module is used for receiving the safety control signal from the safety airbag control module and controlling the electric door handle to pop up. For an automobile with a hidden electric door handle, when the automobile is detected to collide, a pop-up signal is sent to a door handle controller so as to control the door handle to pop up in time, ensure that the automobile door can be smoothly opened for rescue in subsequent collision rescue, and improve the safety coefficient of passengers in collision accidents.

Description

Automobile collision processing system and method

Technical Field

The invention relates to the technical field of automobiles, in particular to an automobile collision processing system and method.

Background

In the prior art, an airbag system for an automobile collision accident is generally an airbag system, and the airbag system arranged on an automobile can judge that the automobile collides through a collision sensor, and release an airbag immediately after the automobile collides, so that possibly injured parts (such as a steering wheel, a windshield glass and the like) in the automobile are separated, and the forward impact energy of passengers is absorbed, thereby achieving the anti-injury safety effect.

However, for a vehicle equipped with a hidden (retractable) electric door handle, the conventional airbag system cannot solve the following problems: after a collision accident occurs to the vehicle, the hidden electric door handle cannot be normally ejected in subsequent rescue due to collision deformation of the vehicle door, so that external rescue is prevented from opening the vehicle door, and once the vehicle fires, the life safety of passengers is seriously threatened.

Disclosure of Invention

The invention aims to provide an automobile collision processing system and method, which can send a pop-up signal to a door handle controller when an automobile collision is detected so as to control the door handle to pop up in time, ensure that the automobile door can be smoothly opened for rescue in subsequent collision rescue, and improve the safety coefficient of passengers in collision accidents.

In a first aspect, an embodiment of the present invention provides an automobile crash processing system adapted for an automobile having a hidden electric door handle, the system comprising:

the collision sensor is used for generating a collision signal when the automobile collides;

the safety air bag control module is used for receiving collision signals from the collision sensor and determining whether to send out safety control signals or not based on the collision signals; and

and the door handle control module is used for receiving the safety control signal from the safety airbag control module and controlling the electric door handle to pop up.

In some embodiments of the first aspect of the present invention, the system further includes an ADAS module configured to predict, according to a preset algorithm, that the vehicle will collide with the target after a pre-crash time; the ADAS module includes:

a first execution policy determination unit configured to execute a corresponding door handle pop-up policy according to the pre-collision time;

the door handle popup strategy comprises that an ADAS module sends popup signals to a door handle control module so that the door handle control module controls door handle popup.

In some embodiments of the first aspect of the present invention, the system further includes an ADAS module configured to predict, according to a preset algorithm, a collision risk level of the vehicle that will have a collision accident with the target after the pre-collision time and that corresponds to the collision accident with the target; the ADAS module includes:

the collision risk level generating unit is used for generating a collision risk level according to the relative speed of the automobile and the target and the collision overlapping rate;

the second execution strategy judging unit is used for executing a corresponding door handle popup strategy according to the pre-collision time and the collision risk level;

In some embodiments of the first aspect of the present invention, the collision risk level generation rule is:

high risk: v is more than or equal to 50km/h and is more than or equal to 0% and less than or equal to C <50%, or 30km/h is more than or equal to C <50km/h and is more than or equal to 0% and less than or equal to C <25%;

risk of (1): v is more than or equal to 50km/h and C is more than or equal to 50% and less than or equal to 100%, or C is more than or equal to 30km/h and less than or equal to 50km/h and C is more than or equal to 25% and less than or equal to 100%; or 0km/h < C <30km/h and 0% < C <25%;

low risk: c is more than or equal to 0km/h and less than or equal to 30km/h, and C is more than or equal to 25% and less than or equal to 100%;

where V is the relative velocity and C is the collision overlap ratio.

In some embodiments of the first aspect of the present invention, the door handle pop-up policy specifically includes:

when TTC is less than 1.2s, sending an ejecting signal to the door handle control module;

when the TTC is more than or equal to 1.2s and less than or equal to 4s and the collision risk level is middle risk or high risk, sending a pop-up signal to the door handle control module;

wherein TTC is the pre-crash time.

In some embodiments of the first aspect of the present invention, the ADAS module further comprises:

a collision accident occurrence judgment unit for receiving a collision signal from the collision sensor and generating a collision-free signal when the collision signal is not received for more than a preset time;

and the door handle retraction control unit is used for sending a retraction signal to the door handle control module when 1.2s is less than or equal to TTC is less than or equal to 4s and the collision risk level is low risk or TTC is more than 4s after the ADAS module sends an ejection signal to the door handle control module and receives a non-collision signal from the collision accident occurrence judgment module, so that the door handle control module controls the door handle to retract.

In a second aspect, an embodiment of the present invention provides a method for processing a collision of an automobile, which is applicable to an automobile having a hidden electric door handle, and the method includes:

generating a collision signal when the automobile collides by using a collision sensor;

receiving a collision signal from a collision sensor by using an airbag control module, and determining whether to send out a safety control signal based on the collision signal;

and the door handle control module is used for receiving a safety control signal from the safety airbag control module and controlling the electric door handle to pop up.

In some embodiments of the second aspect of the present invention, the automobile is provided with an ADAS module, and the method further comprises:

when the ADAS module predicts that the automobile will collide with the target after the pre-collision time according to a preset algorithm, executing a corresponding door handle popup strategy according to the pre-collision time;

when the ADAS module predicts that the automobile collides with the target after the pre-collision time according to a preset algorithm, the ADAS module is utilized to acquire the relative speed and the collision overlapping rate of the automobile and the target;

generating a corresponding collision risk grade when the automobile and the target collide according to the relative speed of the automobile and the target and the collision overlap rate by using an ADAS module;

executing a corresponding door handle popup strategy by utilizing an ADAS module according to the pre-collision time and the collision risk level;

In some embodiments of the second aspect of the present invention, after the ADAS module sends the pop-up signal to the door handle control module, the method further comprises:

an ADAS module is utilized to receive collision signals from the collision sensor, and collision-free signals are generated when the collision signals are not received for more than a preset time;

after generating the collision-free signal, when 1.2s is less than or equal to TTC is less than or equal to 4s and the collision risk level is low risk or TTC is more than 4s, sending a retraction signal to a door handle control module by using an ADAS module so as to enable the door handle control module to control the door handle to retract;

wherein the low risk is: c is more than or equal to 0km/h and less than or equal to 30km/h, and C is more than or equal to 25% and less than or equal to 100%; the TTC is pre-collision time, V is relative speed, and C is collision overlap rate.

In some embodiments of the second aspect of the present invention, the collision risk level generation rule is:

where V is the relative velocity and C is the collision overlap ratio.

In some embodiments of the second aspect of the present invention, the door handle pop-up policy specifically includes:

wherein TTC is the pre-crash time.

In a third aspect, an embodiment of the present invention provides an automobile, including any one of the automobile crash handling systems described above.

Compared with the prior art, the automobile collision processing system and method provided by the embodiment of the invention have at least the following beneficial effects:

for an automobile with a hidden electric door handle, the system and the method provided by the embodiment of the invention can send the pop-up signal to the door handle controller when the automobile is detected to collide, so as to control the door handle to pop up in time, ensure that the automobile door can be smoothly opened for rescue in subsequent collision rescue, and improve the safety coefficient of passengers in collision accidents.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described below with reference to the drawings and examples;

FIG. 1 is a block diagram of an automotive crash handling system in one embodiment.

FIG. 2 is a flow chart of a method of handling a collision of a vehicle in one embodiment.

Fig. 3 is a flow chart of a method for handling an automobile collision according to another embodiment.

Fig. 4 is a view of an automobile driving scene in which an automobile collision processing system provided by an embodiment of the present invention is installed.

Fig. 5 is a block diagram of a computer device in one embodiment.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.

In order to facilitate understanding of the embodiments of the present invention by those skilled in the art, technical terms related to the embodiments of the present invention are briefly described below.

The hidden electric door handle refers to a door handle of a vehicle door, which is controlled by an execution element controlled by a door handle control module to be capable of being ejected or retracted in a groove of a vehicle door body.

The air bag system comprises a collision sensor, an air bag control module and the like, wherein the air bag control module can judge that an automobile collides through a collision signal sent by the collision sensor, and release the air bag immediately after the automobile collides, separate possibly injured parts (such as a steering wheel, windshield glass and the like) in the automobile, absorb forward impact energy of passengers, and further achieve the anti-injury safety effect.

The body control module, also called a body controller (BCM for short, english: body control module), also called a body computer (body computer), is one of the important components of the automobile, and is referred to as an Electronic Control Unit (ECU) for controlling the electrical system of the body in the automobile engineering. Common functions of a vehicle body controller include controlling power windows, power rearview mirrors, air conditioners, headlamps, turn signals, anti-theft locking systems, center control locks, defrosting devices and the like. The body controller may be connected to other onboard ECUs via a bus. The body control module may send a signal to the door controller to control unlocking of the door.

The ADAS module, called advanced driving assistance system (English: advanced Driver Assistance Systems), collects the environmental data inside and outside the vehicle in real time by using various environmental perception sensors installed on the vehicle body, and performs the technical processes of identifying, detecting and tracking static and dynamic objects, so that the driver can perceive the danger possibly happening in the fastest time; if necessary, the system can perform active intervention to avoid serious accidents. ADAS module belongs to prior art, and is not repeated in the embodiment of the invention.

In a first aspect, the vehicle crash processing system provided by the embodiments of the present invention will be described and illustrated in detail with reference to several specific embodiments.

In one embodiment, as shown in FIG. 1, an automotive crash handling system is provided. The system is suitable for use in an automobile having a hidden electric door handle 111, and includes a collision sensor 121, an airbag control module 120, and a door handle control module 110.

Wherein the collision sensor 121 is used for generating a collision signal when an automobile collides; the airbag control module 120 is configured to receive the collision signal from the collision sensor 121 and determine whether to issue a safety control signal based on the collision signal; the door handle control module 110 is configured to receive a safety control signal from the airbag control module 120 and control the electric door handle 111 to pop up.

It should be noted that, the door handle control module 110 and the airbag control module 120 are both computer devices having data processing and transmission functions, and the door is provided with a groove for accommodating the door handle. After the collision accident occurs to the running automobile, the collision sensor 121 sends a collision signal to the air bag control module 120, the air bag control module 120 sends a safety control signal to the door handle control module 110, and after the door handle control module 110 receives the safety control signal, the actuating element is driven by the driving device to drive the door handle to pop up the groove. As an example, the computer device may be a CPU, MCU or a single-chip microcomputer, the driving means may be a relay or a power amplifier, and the actuator may be a motor, a cylinder or an electric cylinder. It is understood that the computer device, the driving apparatus, the execution element are not limited to the implementation means of the above examples, but may be other implementation means known to those skilled in the art.

According to the automobile collision processing system, when an automobile collision is detected, a pop-up signal is sent to the door handle controller so as to control the door handle to pop up in time, so that the automobile door can be smoothly opened for rescue in subsequent collision rescue, and the safety coefficient of passengers in a collision accident is improved.

Further, in some embodiments of the first aspect of the present invention, the system further comprises a body control module for receiving a safety control signal from the airbag control module 120, controlling the vehicle door controller to unlock the vehicle door.

It can be understood that when a collision accident occurs, the automobile door controller unlocks the automobile door, so that rescue workers can conveniently and rapidly open the door in subsequent rescue of the accident, and the survival coefficient of passengers in the collision accident of the automobile is improved.

In some embodiments of the first aspect of the present invention, the system further includes an ADAS module 130 for predicting, according to a preset algorithm, that the vehicle will collide with the target after a pre-crash time; the ADAS module 130 includes a first execution policy determining unit configured to execute a corresponding door handle pop-up policy according to the pre-collision time; wherein the door handle eject strategy includes the ADAS module 130 sending an eject signal to the door handle control module 110 to cause the door handle control module 110 to control door handle ejection.

It can be appreciated that, in this embodiment, the ADAS module 130 is utilized to control the door handle to pop up in advance according to the pre-crash time predicted by the ADAS before the actual car crash occurs, so that the defect that the door handle control module 110 may be crashed after the actual car crash and cannot control the door handle to pop up is overcome, the corresponding driving dangerous event is realized in advance, and the safety performance of the post-crash treatment of the car is further improved.

Referring to fig. 2, in further embodiments of the first aspect of the present invention, the system further includes an ADAS module 130 for predicting, according to a preset algorithm, a collision accident that the vehicle will have after the pre-collision time with the target and a collision risk level corresponding to the collision accident with the target; the ADAS module 130 includes a collision risk level generation unit and a second execution policy determination unit; the collision risk level generation unit is used for generating a collision risk level according to the relative speed of the automobile and the target and the collision overlapping rate; the second execution strategy judging unit is used for executing a corresponding door handle popup strategy according to the pre-collision time and the collision risk level; wherein the door handle eject strategy includes the ADAS module 130 sending an eject signal to the door handle control module 110 to cause the door handle control module 110 to control door handle ejection.

In the present embodiment, the relative speed of the vehicle and the target and the collision overlap ratio are further considered on the basis of considering the pre-collision time. As shown in fig. 4, the vehicle a is a vehicle on which the vehicle collision handling system provided in the present embodiment is mounted, and the vehicle B is a target that is about to send a collision accident with the vehicle a. The current distance between the two is s, the width of the vehicle A in the left-right direction is w, and the width of the vehicle B overlapped with the vehicle A in the left-right direction is h; if the running direction of the vehicle A and the running direction of the vehicle B are not changed, and when a collision accident occurs, the collision overlapping rate of the vehicle A is h/w, namely the ratio of h to the vehicle width of the vehicle A. It will be appreciated that since the doors are on the left and right sides of the A-vehicle, the smaller the h/w (collision overlap ratio), the more likely the B-vehicle will collide directly with the doors of the A-vehicle when a real collision accident occurs. Therefore, the smaller the collision overlap ratio, the more the risk of deformation of the a-car door is. Similarly, the greater the relative speeds of the A and B vehicles, the higher the risk of vehicle door deformation.

Therefore, for the scheme of hidden door handle ejection in the collision accident, the key factors affecting the hidden door handle ejection in the collision accident, namely the relative speed and the collision overlapping rate, are considered, the door handle ejection strategies under different pre-collision time are further refined according to the two key factors, and the door handle ejection strategies under different collision risk levels are formulated, so that the accuracy of the door handle ejection strategies is improved.

Specifically, the collision risk level generation rule is as follows:

where V is the relative velocity and C is the collision overlap ratio.

Specifically, the door handle pop-up strategy specifically includes:

when TTC <1.2s, send an eject signal to door handle control module 110;

when 1.2s is less than or equal to TTC is less than or equal to 4s and the collision risk level is medium risk or high risk, sending an ejection signal to the door handle control module 110;

wherein TTC is the pre-crash time.

As shown in fig. 4, in one example, when the ADAS module 130 mounted on the a car detects that the current relative speed of the a car and the B car is 60km/h, and the ADAS module 130 detects that the collision overlap ratio of the a car and the B car is 30% according to a preset algorithm, the collision risk level generating unit in the ADAS module 130 determines that the a car is currently at high risk. Meanwhile, the ADAS module 130 predicts according to a preset algorithm: if the current running speed and running direction of the A car and the B car are not changed, the A car and the B car have collision accidents after 2s (namely, the pre-collision time is 2 s). Accordingly, the second execution policy determination unit of the ADAS module 130 executes a corresponding door handle eject policy, i.e., the ADAS module 130 transmits an eject signal to the door handle control module 110 to cause the door handle control module 110 to control door handle ejection. In this way, even if a collision accident occurs after 2s, it is possible to ensure that the door handle is already ejected even if the door handle control module 110 is damaged due to the corresponding door handle ejection strategy being executed before the actual collision accident occurs. Furthermore, the ADAS module 130 may send a control signal to the vehicle body control module while sending a pop-up signal, so as to control the vehicle door controller to unlock the vehicle door, thereby further improving the safety performance.

As shown in fig. 1, in some embodiments of the first aspect of the present invention, the ADAS module 130 further includes a collision accident determination unit 133 and a door handle retraction control unit 134, wherein the collision accident determination unit 133 is configured to receive a collision signal from the collision sensor 121 and generate a non-collision signal when the collision signal is not received for more than a preset time; the door handle retraction control unit 134 is configured to send a retraction signal to the door handle control module 110 to cause the door handle control module 110 to control door handle retraction when 1.2 s.ltoreq.ttc.ltoreq.4 s and the collision risk level is low risk or TTC >4s after the ADAS module 130 has sent an eject signal to the door handle control module 110 and received a no-collision signal from the collision accident determination module.

It will be appreciated that, as shown in fig. 4, while the ADAS module 130 predicts that the a vehicle collides with the B vehicle after 3s, the drivers of the a vehicle and the B vehicle react effectively in time within 3s, avoiding a real collision accident when the door handle is already in an ejected state, and in some examples, the door is also in an unlocked state. In order to ensure safety during the running of the a vehicle, to avoid mishandling of the ejected door handle or door lock during the running, when the door handle retraction control unit 134 in the ADAS module 130 receives a collision-non signal from the collision accident occurrence determination unit 133, a retraction signal is sent to the door handle control module 110 to cause the door handle control module 110 to control the door handle to retract.

As one example, when the ADAS module 130 on the a-car has transmitted a pop-up signal to the door handle control module 110, the collision accident determination unit 133 generates a collision-non signal when no collision signal is received for more than 10 s; meanwhile, the ADAS module 130 mounted on the a car detects that the current relative speed of the a car and the B car is 10km/h, and the ADAS module 130 detects that the collision overlapping rate of the a car and the B car is 50% according to a preset algorithm, and a collision risk level generating unit in the ADAS module 130 determines that the a car is currently at low risk. At this time, the collision accident occurrence determination unit 133 transmits the collision-free signal to the door handle retraction control unit 134, and the door handle retraction control unit 134 transmits a retraction signal to the door handle control module 110, and the door handle control module 110 controls the door handle retraction groove; meanwhile, the ADAS module 130 sends a control signal to the vehicle body control module to control the vehicle door controller to lock the vehicle door, so that the running safety of the vehicle is improved.

In a second aspect, the method for handling an automobile collision according to the embodiment of the present invention will be described and illustrated in detail by using several specific embodiments.

As shown in fig. 1, in one embodiment, there is provided an automobile collision processing method applied to the automobile collision processing system described in the first aspect. The method is suitable for use in an automobile having a hidden electric door handle 111, as shown in fig. 2, and comprises the steps of:

step S102: generating a collision signal when the automobile collides with the collision sensor 121;

step S104: receiving a collision signal from the collision sensor 121 with the airbag control module 120 and determining whether to issue a safety control signal based on the collision signal;

step S106: the door handle control module 110 is used to receive a safety control signal from the airbag control module 120 to control the ejection of the electric door handle 111.

Specifically, when step S106 is performed, the following steps may also be performed simultaneously:

step S1061: the vehicle door controller is controlled to unlock the vehicle door by the vehicle body control module receiving a safety control signal from the airbag control module 120.

It can be appreciated that, for an automobile with a hidden electric door handle 111, the system and the method provided by the embodiment of the invention can send the pop-up signal to the door handle controller when the automobile is detected to collide, so as to control the door handle to pop up in time, ensure that the automobile door can be smoothly opened for rescue in subsequent collision rescue, and improve the safety coefficient of passengers in collision accidents.

In one embodiment provided by the second aspect of the present invention, the automobile is provided with an ADAS module 130, and the method further includes the steps of:

when the ADAS module 130 predicts that the automobile will collide with the target after the pre-collision time according to a preset algorithm, a corresponding door handle pop-up strategy is executed according to the pre-collision time.

Wherein the door handle eject strategy includes the ADAS module 130 sending an eject signal to the door handle control module 110 to cause the door handle control module 110 to control door handle ejection.

As shown in fig. 3, the present embodiment provides a processing method before collision, compared to the processing method after collision for an automobile in the above embodiment. In one embodiment, the automobile is provided with an ADAS module 130, and the pre-crash processing method further includes the following steps:

step S201: when the ADAS module 130 predicts that the automobile will collide with the target after the pre-collision time according to a preset algorithm, the ADAS module 130 is utilized to obtain the relative speed and the collision overlap ratio of the automobile and the target;

step S202: generating a corresponding collision risk level when the automobile and the target collide according to the relative speed of the automobile and the target and the collision overlap rate by utilizing the ADAS module 130;

step S203: executing a corresponding door handle pop-up strategy by utilizing the ADAS module 130 according to the pre-collision time and the collision risk level; wherein the door handle eject strategy includes the ADAS module 130 sending an eject signal to the door handle control module 110 to cause the door handle control module 110 to control door handle ejection.

Step S204: after the ADAS module 130 transmits the pop-up signal to the door handle control module 110, receiving the collision signal from the collision sensor 121 by the ADAS module 130 and generating a collision-non signal when the collision signal is not received for more than a preset time;

step S205: after generating the collision-free signal, when 1.2 s.ltoreq.ttc.ltoreq.4 s and the collision risk level is low risk or TTC >4s, transmitting a retract signal to the door handle control module 110 using the ADAS module 130 to cause the door handle control module 110 to control door handle retraction;

Wherein, table 1 is a collision risk level table:

table 1: collision risk level meter

Table 2 is a door handle pop-up policy table:

table 2: door handle pop-up strategy table

In summary, for the scheme of hidden door handle ejection in a crash accident, the embodiment considers the key factors affecting the hidden door handle ejection in the crash accident, namely the relative speed and the crash overlapping rate, further refines the door handle ejection strategies under different pre-crash time according to the two key factors, and makes the door handle ejection strategies under different crash risk levels so as to improve the accuracy of the door handle ejection strategies.

FIG. 5 illustrates an internal block diagram of a computer device in one embodiment. The computer device may be, in particular, a computer device employed in the ADAS module 130 in fig. 1. As shown in fig. 5, the computer device includes a processor, a memory, a network interface, an input device, and a display screen connected by a system bus. The memory includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system, and may also store a computer program that, when executed by a processor, causes the processor to implement a vehicle collision handling method. The internal memory may also have stored therein a computer program which, when executed by the processor, causes the processor to perform the vehicle collision handling method. It will be appreciated by those skilled in the art that the structure shown in FIG. 5 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.

In one embodiment, the collision risk level generation unit, the second execution policy determination unit, the collision accident occurrence determination unit 133, and the door handle retraction control unit 134 provided in the present application may be implemented in the form of a computer program that can be run on a computer device as shown in fig. 5. The memory of the computer device may store therein respective program modules of the collision risk level generation unit, the second execution policy determination unit, the collision accident occurrence determination unit 133, the door handle retraction control unit 134, and the like, and a computer program constituted by the respective program modules causes the processor to execute the steps in the vehicle collision processing method of the respective embodiments described in the present specification.

For example, the computer device shown in fig. 5 may perform the step of generating the collision risk level according to the relative speed of the automobile and the target and the collision overlap ratio by the collision risk level generating unit of the ADAS module 130 shown in fig. 1. Executing, by a second execution policy determination unit, a step of executing a corresponding door handle pop-up policy according to the pre-crash time and the crash risk level. The step of receiving the collision signal from the collision sensor 121 and generating a non-collision signal when the collision signal is not received for more than a preset time is performed by the collision accident determination unit 133. The step of transmitting a retract signal to the door handle control module 110 to cause the door handle control module 110 to control door handle retraction when 1.2 s.ltoreq.ttc.ltoreq.4 s and the collision risk level is low risk or TTC >4s after the ADAS module 130 has transmitted the eject signal to the door handle control module 110 and received the non-collision signal from the collision accident occurrence determination module is performed by the door handle retract control unit 134.

In one embodiment, an automobile is provided that includes the automobile crash handling system described above.

Those skilled in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a non-volatile computer readable storage medium, and where the program, when executed, may include processes in the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRA), memory bus direct RAM (RDRA), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.

In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

Claims

1. An automobile crash handling system adapted for use in an automobile having a hidden electric door handle, said system comprising:

the door handle control module is used for receiving a safety control signal from the safety airbag control module and controlling the electric door handle to pop up;

the automobile body control module is used for receiving the safety control signal from the safety airbag control module and controlling the automobile door controller to unlock the automobile door;

the system also comprises an ADAS module, wherein the ADAS module is used for predicting the collision accident of the automobile with the target after the pre-collision time and the corresponding collision risk level when the collision accident occurs with the target according to a preset algorithm; the ADAS module includes:

the collision risk level generating unit is used for generating a collision risk level according to the relative speed of the automobile and the target and the collision overlapping rate; the width of the automobile in the left-right direction is defined as w, the width of the automobile overlapped with the automobile collided with the automobile in the left-right direction is defined as h, and the collision overlapping rate of the automobile is h/w;

the door handle popup strategy comprises that an ADAS module sends popup signals to a door handle control module so that the door handle control module controls a door handle to popup;

the collision risk level generation rule is as follows:

high risk: v is more than or equal to 50km/h and is more than or equal to 0% and less than or equal to C is less than 50%, or 30km/h is more than or equal to V is less than or equal to 50km/h and is more than or equal to 0% and less than or equal to C is less than 25%;

risk of (1): v is more than or equal to 50km/h and C is more than or equal to 50% and less than or equal to 100%, or V is more than or equal to 30km/h and less than or equal to 50km/h and C is more than or equal to 25% and less than or equal to 100%; or 0km/h < V <30km/h and 0% < C <25%;

low risk: v is more than or equal to 0km/h and less than or equal to 30km/h, and C is more than or equal to 25% and less than or equal to 100%;

where V is the relative velocity and C is the collision overlap ratio.

2. The vehicle crash handling system as set forth in claim 1, wherein said door handle pop-up strategy specifically comprises:

wherein TTC is the pre-crash time.

3. The vehicle crash processing system of claim 2, wherein said ADAS module further comprises:

4. A method of handling a vehicle collision suitable for use in a vehicle having a hidden electric door handle, the method comprising:

receiving a safety control signal from the safety airbag control module by using the door handle control module to control the electric door handle to pop up; the vehicle body control module is used for receiving a safety control signal from the safety airbag control module and controlling the vehicle door controller to unlock the vehicle door;

the automobile is provided with an ADAS module, and the method further comprises:

generating a corresponding collision risk grade when the automobile collides with the target according to the relative speed of the automobile and the target and the collision overlapping rate by using the ADAS module, wherein the smaller the collision overlapping rate is, the higher the vehicle door deformation risk is; the width of the automobile in the left-right direction is defined as w, the width of the automobile overlapped with the automobile collided with the automobile in the left-right direction is defined as h, and the collision overlapping rate of the automobile is h/w;

5. The method of claim 4, wherein after the ADAS module sends the pop-up signal to the door handle control module, the method further comprises:

wherein the low risk is: v is more than or equal to 0km/h and less than or equal to 30km/h, and C is more than or equal to 25% and less than or equal to 100%; the TTC is pre-collision time, V is relative speed, and C is collision overlap rate.