CN110588568A - Engine hood control method and device, computer equipment and storage medium - Google Patents
Engine hood control method and device, computer equipment and storage medium Download PDFInfo
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- CN110588568A CN110588568A CN201910760094.5A CN201910760094A CN110588568A CN 110588568 A CN110588568 A CN 110588568A CN 201910760094 A CN201910760094 A CN 201910760094A CN 110588568 A CN110588568 A CN 110588568A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R21/38—Protecting non-occupants of a vehicle, e.g. pedestrians using means for lifting bonnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01252—Devices other than bags
Abstract
The invention relates to a method and a device for controlling an engine hood, computer equipment and a storage medium. The method comprises the following steps: acquiring vehicle detection information; the vehicle detection information is collected by a detection device; if the vehicle detection information carries a target object, determining the type of the target object; if the type of the target object meets a preset type condition, acquiring collision trigger information; the collision triggering information is obtained when the vehicle collides; if the collision trigger information meets the set trigger condition, sending a control instruction to an actuator; the control instruction is used for controlling the actuator to bounce the engine hood. By adopting the method, the type information of the target object and the collision triggering information can be combined to control the bounce of the engine cover, so that the engine cover can be prevented from bouncing under unnecessary conditions, and the accuracy of the bounce of the engine cover is improved.
Description
Technical Field
The present invention relates to the field of network technologies, and in particular, to a method and an apparatus for controlling an engine hood, a computer device, and a storage medium.
Background
Vehicles are now everyday vehicles. Along with the popularization of vehicles, accidents caused by the fact that the vehicles collide with pedestrians to cause death are increased during driving. Regulations are increasingly demanding pedestrian protection for vehicles. Some vehicles are then equipped with a pop-up hood for protecting the head of the pedestrian. The vehicle lifts the engine cover at the moment of colliding with the pedestrian, so that a certain space is reserved between the head of the pedestrian and the engine, and the impact force of the engine to the head of the pedestrian is reduced.
Conventional vehicles bounce the hood based on pressure information generated after a collision with a pedestrian. In the process of implementing the invention, the inventor finds that at least the following problems exist in the traditional mode: the hood will also be bounced when the vehicle hits a small animal or a railing or the like. In these cases, the hood is raised without the necessity of raising the hood, so that the accuracy of hood raising is not high.
Disclosure of Invention
Based on this, the embodiment of the invention provides a control method and device of an engine hood, a computer device and a storage medium, which can realize the control of the bounce of the engine hood, reduce the situation that the engine hood bounces when unnecessary and improve the accuracy of the bounce of the engine hood.
The content of the embodiment of the invention is as follows:
in one aspect, an embodiment of the present invention provides a method for controlling an engine hood, including the steps of: acquiring vehicle detection information; the vehicle detection information is collected by a detection device; if the vehicle detection information carries a target object, determining the type of the target object; if the type of the target object meets a preset type condition, acquiring collision trigger information; the collision triggering information is obtained when the vehicle collides; if the collision trigger information meets the set trigger condition, sending a control instruction to an actuator; the control instruction is used for controlling the actuator to bounce the engine hood.
In one embodiment, the step of obtaining vehicle detection information includes: and acquiring vehicle detection information within a set distance in front of the vehicle.
In one embodiment, before the step of acquiring the vehicle detection information within the set distance in front of the vehicle, the method further includes: and determining the set distance according to the predetermined reference time and the vehicle speed of the vehicle.
In one embodiment, the detection device comprises a camera; the step of acquiring vehicle detection information includes: and receiving image information acquired by the camera as the vehicle detection information.
In one embodiment, the detection means comprises a millimeter wave radar; the step of acquiring vehicle detection information includes: and receiving the electromagnetic wave information collected by the millimeter wave radar as the vehicle detection information.
In one embodiment, the step of sending a control instruction to an actuator if the collision trigger information satisfies a set trigger condition includes: if the collision trigger information meets the set trigger condition, determining the time when the collision trigger information meets the set trigger condition as collision time; determining the time when the type of the target object meets a preset type condition as identification time; and if the difference value between the collision time and the recognition time meets a set time difference value condition, sending a control instruction to an actuator.
In one embodiment, the step of issuing a control command to the actuator includes: acquiring the speed of a vehicle; and if the vehicle speed meets the set vehicle speed range, sending a control command to an actuator.
In one embodiment, the step of obtaining collision trigger information if the type of the target object meets a preset type condition includes: and if the target object is a pedestrian, receiving collision trigger information sent by a pressure sensor.
In another aspect, an embodiment of the present invention provides a control apparatus for a hood, including: the first information acquisition module is used for acquiring vehicle detection information; the vehicle detection information is collected by a detection device; the type determining module is used for determining the type of the target object if the vehicle detection information carries the target object; the second information acquisition module is used for acquiring collision trigger information if the type of the target object meets a preset type condition; the collision triggering information is obtained when the vehicle collides; the control instruction sending module is used for sending a control instruction to the actuator if the collision trigger information meets the set trigger condition; the control instruction is used for controlling the actuator to bounce the engine hood.
In another aspect, an embodiment of the present invention provides a computer device, including a memory and a processor, where the memory stores a computer program, and the processor implements the following steps when executing the computer program: acquiring vehicle detection information; the vehicle detection information is collected by a detection device; if the vehicle detection information carries a target object, determining the type of the target object; if the type of the target object meets a preset type condition, acquiring collision trigger information; the collision triggering information is obtained when the vehicle collides; if the collision trigger information meets the set trigger condition, sending a control instruction to an actuator; the control instruction is used for controlling the actuator to bounce the engine hood.
In yet another aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of: acquiring vehicle detection information; the vehicle detection information is collected by a detection device; if the vehicle detection information carries a target object, determining the type of the target object; if the type of the target object meets a preset type condition, acquiring collision trigger information; the collision triggering information is obtained when the vehicle collides; if the collision trigger information meets the set trigger condition, sending a control instruction to an actuator; the control instruction is used for controlling the actuator to bounce the engine hood.
One of the above technical solutions has the following advantages or beneficial effects: when the type of the target object meets the preset type condition, the control instruction is sent to the actuator by combining with the collision trigger information so as to control the bounce of the engine hood, so that the engine hood can be prevented from bouncing under the unnecessary condition, and the accuracy of the bounce of the engine hood is improved.
Drawings
FIG. 1 is a diagram illustrating an exemplary method of controlling an engine cover;
FIG. 2 is a schematic flow chart illustrating a method of controlling the hood according to one embodiment;
FIG. 3 is a diagram illustrating an application of a hood control method according to another embodiment;
FIG. 4 is a schematic flow chart of a hood control method according to another embodiment;
FIG. 5 is a schematic structural view of a control device of the hood in one embodiment;
FIG. 6 is a diagram of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Based on this, the control method of the engine hood provided by the invention can be applied to the application environment as shown in fig. 1. The application environment includes a controller 102, a detector 104, and a collision trigger 106, where the controller 102 is configured to implement a series of functions of analyzing, processing, and sending information. In practical applications, after the detector 104 collects the vehicle detection information, the controller 102 obtains the vehicle detection information. When the vehicle detection information carries a target object and the type of the target object meets a preset type condition, the controller 102 acquires collision trigger information sent by the collision trigger 106, and sends a control instruction to an actuator (not shown in fig. 1) to control the actuator to bounce the hood when the collision trigger information meets the set trigger condition. The controller 102 may be implemented by a control chip, a terminal device, or a server, where the control chip may be a microcontroller, the terminal device may be but is not limited to various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices, and the server may be implemented by an independent server or a server cluster formed by multiple servers. The detector 104 may be various devices having an information detection function, and may specifically be a sensor, a camera, a radar, or the like. The collision trigger 106 refers to a device capable of detecting whether a vehicle has a collision accident, and may be various types of sensors, such as: pressure sensors, acceleration sensors, speed sensors, etc.
The embodiment of the invention provides a control method and device of an engine hood, computer equipment and a storage medium. The following are detailed below.
In one embodiment, as shown in FIG. 2, a method of controlling a hood is provided. Taking the method applied to the controller in fig. 1 as an example, the method comprises the following steps:
s202, acquiring vehicle detection information; the vehicle detection information is collected by the detection device.
The vehicle detection information is detection information of the periphery of the vehicle, for example, the front, both sides, the rear, the upper side, or even the lower side of the vehicle, which is collected by the detection device. The vehicle detection information may be image information, millimeter wave information, sound information, temperature information, distance information, infrared information, ultrasonic information, laser information, or the like. Correspondingly, the detection device can be a camera, a millimeter wave radar, a sound pickup, a temperature collector, a range finder, an infrared detector, an ultrasonic radar, a laser radar and the like.
Further, the vehicle detection information may be information directly acquired by the detection device, or may be information obtained by performing certain processing on the acquired information (for example, intercepting information of a certain time period and a certain distance period).
And S204, if the vehicle detection information carries the target object, determining the type of the target object.
In this step, the controller analyzes whether the vehicle detection information carries a target object, and if the target object exists, the controller further analyzes the type of the target object.
The target object may be an object appearing near the vehicle and possibly affecting normal running of the vehicle, and may be running or static. Further, the types of target objects may include: pedestrians, animals (which can be further classified into small animals and large animals), vehicles, fixtures (which can be further classified into railings and buildings), and the like. The target object may appear in front of, on both sides of, behind, above, or even below the vehicle.
Specifically, after the detection device sends the collected vehicle detection information to the controller, the controller analyzes the vehicle detection information, and it is analyzed that the vehicle detection information carries the target object. The controller further analyzes the type of the target object at this time, and determines that the type of the target object is a pedestrian if the target object represents characteristics of a human being. If the target object shows the characteristics of animals such as cats and dogs, the type of the target object is determined as a small animal.
S206, if the type of the target object meets a preset type condition, acquiring collision trigger information; the collision trigger information is obtained when the vehicle collides.
The preset type condition refers to a preset type condition of the target object, and is used for comparing with the type of the target object carried by the vehicle detection information, and may be set according to an actual situation, for example: if the engine cover needs to be bounced when the vehicle touches the pedestrian, the preset type condition is determined as the pedestrian; the predetermined type condition is determined as a vehicle if the hood needs to be sprung up when the vehicle hits a preceding vehicle, and the preceding vehicle and the predetermined type condition may be a two-wheeled vehicle.
The collision trigger information is obtained when the vehicle collides. After the vehicle is collided with, such as a pedestrian, the pressure at the front end of the vehicle, the acceleration of the vehicle or the speed of the vehicle is changed, and the corresponding collision trigger can send the changed information to the controller as collision trigger information. Further, the collision trigger information may be a pressure value sent by a pressure sensor, a vehicle acceleration value sent by an acceleration sensor or a vehicle speed value sent by a speed sensor, and may further include the time when the collision occurs, and the like.
The collision trigger information may be information generated at the time when the vehicle collides, or may be information generated after a specific time has elapsed after the collision.
In this step, the controller compares the type of the target object with a preset type condition, and if the type of the target object meets the preset type condition, the controller acquires collision trigger information. For example, the preset type condition of the target object is a pedestrian, and after the controller executes S204, the controller determines that the type of the target object is a pedestrian. The type of the target object is in accordance with a preset type condition, and the controller further acquires collision triggering information at the moment. In addition, if the preset type condition of the target object is a pedestrian and the controller determines that the type of the target object is a small animal, the type of the target object does not conform to the preset condition type, and therefore, the controller does not acquire the collision trigger information.
S208, if the collision trigger information meets the set trigger condition, sending a control instruction to the actuator; the control command is used for controlling the actuator to bounce the engine hood.
The triggering condition required to be met by the collision triggering information can be a pressure threshold, an acceleration threshold or a speed threshold. For example: and when the controller receives a pressure value sent by the collision trigger, the controller compares the pressure value with a pressure threshold value, and when the pressure value is greater than the pressure threshold value, the controller sends a control instruction to the actuator.
In the step, the controller analyzes the acquired collision trigger information, when the collision trigger information meets the set trigger condition, the controller sends a control instruction to the actuator, and the actuator jacks upwards after receiving the control instruction, so that a hinge connected with the actuator deforms, the engine cover is bounced, and a part of space is reserved. Since it is not necessary to bounce the hood when a small collision occurs (for example, a small friction occurs with the preceding vehicle), this step can prevent the hood from bouncing unnecessarily by issuing a control command to the actuator when the collision trigger information satisfies the set trigger condition.
Conventional vehicles bounce the hood based on pressure information generated after a collision with an object. The inventor of the invention finds that the traditional mode of controlling the bounce of the engine hood through the pressure information has at least the following problems: the vehicle collides with a small animal or a rail or the like and also bounces the hood, which unnecessarily bounces the hood, resulting in an increase in maintenance costs. In the control method of the engine hood of the embodiment, the controller sends the control instruction to the actuator by combining the type of the target object and the collision trigger information, so that the accuracy of the engine hood bouncing is improved. In addition, maintenance is often required after the hood is bounced, and the maintenance cost of the vehicle can be effectively controlled under the condition of improving the accuracy of the bounce of the hood.
In one embodiment, the step of obtaining vehicle detection information further comprises: and acquiring vehicle detection information within a set distance in front of the vehicle.
In this embodiment, the vehicle detection information is collected by the detection device, and carries the information of the farthest distance that can be collected by the detection device, for example, the farthest distance that can be collected by the forward-looking main-view camera is 60 meters, and then the image information collected by the forward-looking main-view camera carries the image information within 60 meters.
In one embodiment, the set distance may be a fixed value, or may be dynamically calculated according to a certain algorithm.
Further, the set distance is set to be a fixed value, for example, the set distance is 20 meters, and taking the set type as a pedestrian as an example, after the controller acquires the vehicle detection information during driving, the vehicle detection information within 20 meters is extracted from the vehicle detection information, the vehicle detection information within 20 meters is analyzed, and when the controller analyzes that the vehicle detection information within 20 meters carries the target object and the type of the target object is a pedestrian, the collision trigger information is acquired.
Further, the set distance is dynamically calculated by a certain algorithm. In one embodiment, the set distance is determined based on the reference time and the vehicle speed of the vehicle. The reference time may be predetermined, and specifically may be 2 milliseconds, 2 seconds, 5 seconds, and the like, and the specific value of the reference time does not limit the present invention.
Specifically, the vehicle speed is the current running speed of the vehicle, and the reference time is 2 seconds, so the set distance is the product of the vehicle speed and 2 seconds, and the set distance and the vehicle speed are in a linear relationship at this time. Of course, the set distance may be determined in other ways than by multiplication.
According to the control method of the engine hood provided by the embodiment, the controller analyzes the vehicle detection information within the set distance, so that the analysis time is saved, and the risk that the engine hood cannot bounce in time due to overlong analysis time is reduced. And the set distance is determined according to the reference time and the vehicle speed, the vehicle detection information with longer distance can be analyzed for the faster vehicle speed, and the vehicle detection information with shorter distance can be analyzed for the slower vehicle speed, so that the intelligent control requirement on the engine hood in the driving process of the vehicle is met.
In one embodiment, the detection device comprises a camera; the step of acquiring vehicle detection information includes: and receiving image information acquired by the camera as vehicle detection information. The camera can be realized by a vehicle-mounted automobile data recorder and the like.
In one embodiment, the detection means comprises a millimeter wave radar; the step of acquiring vehicle detection information includes: and receiving electromagnetic wave information acquired by the millimeter wave radar as vehicle detection information.
Further, the number of cameras and millimeter wave radars may be one, two or even more. Meanwhile, the installation positions of the camera and the millimeter wave radar are not limited, and the vehicle detection information can be acquired according to the requirement.
In one embodiment, the detection device comprises a camera and a millimeter wave radar; the step of acquiring vehicle detection information includes: and receiving the image information collected by the camera and receiving the electromagnetic wave information collected by the millimeter wave radar. When the light is sufficient, the controller takes the image information as the vehicle detection information; when the light is insufficient, the controller takes the electromagnetic wave information as the vehicle detection information.
Through regard as detection device with camera and millimeter wave radar, reduce the collection of vehicle detection information and receive the influence degree of light.
In one embodiment, when the collision trigger information meets the set trigger condition, the step of sending a control command to the actuator comprises: if the collision trigger information meets the set trigger condition, determining the time when the collision trigger information meets the set trigger condition as collision time; determining the time when the type of the target object meets a preset type condition as identification time; and if the difference value between the collision time and the recognition time meets the set time difference value condition, sending a control instruction to the actuator. The set time difference condition may also be 2 milliseconds, 2 seconds, 5 seconds, etc. The set time difference condition does not constitute a limitation of the present invention because the determination of the recognition time and the collision time is related to the processing speed of the controller, the data transmission time, and the like.
Specifically, after the controller judges that the collision trigger information meets the set trigger condition, the time when the collision trigger information meets the set trigger condition is taken as the collision time. The collision time may also be the time at which the controller will receive the collision trigger information. It should be noted that the selection of the collision time is not limited to the embodiment, because the collision time is related to the sensitivity of the sensor, the information transmission time, and other factors, and the skilled person can select the collision time according to the actual situation. Further, at the time of a collision in front of the vehicle, the pressure sensor at the front bumper may detect that the pressure value exceeds the pressure threshold, and the time when the pressure sensor detects that the pressure value exceeds the pressure threshold may be determined as the collision time.
Specifically, the controller determines a time at which the type of the target object meets a preset type condition as the recognition time. When the controller determines the type of the target object, the type of the target object is compared with a preset type condition. When the controller determines that the type of the target object is in accordance with a preset type condition, the time is determined as the recognition time. Further, a time at which the controller recognizes that the target object is a pedestrian is determined as the recognition time.
Specifically, the controller compares the difference between the collision time and the recognition time with a set time difference condition. When the difference is less than the set time difference condition, the controller sends a control command to the actuator.
In one embodiment, the type condition preset by the target object is a pedestrian, and the time difference condition set by the controller is 2 seconds. During driving, a pedestrian is present in front of the vehicle. The controller acquires and analyzes the vehicle detection information acquired by the detection device. When the controller analyzes that the type of the target object in the vehicle detection information is a pedestrian and determines that the type of the target object meets the preset type condition at 7:30:00, 7:30:00 is determined as the identification time. Within 2 seconds from 7:30:00, the controller determines whether collision trigger information is acquired and whether the collision trigger information satisfies a set trigger condition. If the collision trigger information is acquired within 2 seconds and the collision trigger information is analyzed to meet the set trigger condition, the controller sends a control command to the actuator. If the controller does not receive the collision trigger information within 2 seconds (namely, the vehicle does not have a collision accident within 2 seconds) or the collision trigger information does not meet the set trigger condition, the controller may not send a control instruction to the actuator.
In this embodiment, the controller controls the hood to bounce by judging whether the collision information is received within the set time condition, so that the situation that the controller judges the target object identification information and the collision trigger information which exceed the set time condition in a combined manner, and a control instruction is generated by mistake, so that the hood is bounced by mistake can be avoided.
In one embodiment, the step of issuing control commands to the actuator comprises: acquiring the speed of a vehicle; and if the speed of the vehicle meets the set speed range, sending a control command to an actuator.
In the embodiment, the controller acquires the vehicle speed after determining that the type of the target object meets the preset type condition and the collision trigger information meets the set trigger condition. For example, the controller analyzes that the vehicle detection information carries pedestrian information and receives a pressure value reaching a pressure threshold value, and the controller acquires the vehicle speed. When the vehicle speed meets the set vehicle speed range, the controller sends a control command to the actuator. The vehicle speed range is from a set first vehicle speed to a set second vehicle speed. The set first vehicle speed is less than the set second vehicle speed. It is understood that when the vehicle speed is less than the set first vehicle speed, the collision force of the vehicle against the pedestrian is not large, and therefore the hood is not sprung up in the normal case. When the vehicle speed is greater than the set second vehicle speed, the collision force of the vehicle to the pedestrian is too large, the head of the pedestrian can impact the engine hood at a higher speed before the engine hood is not completely bounced, and the bounce of the engine hood can cause secondary damage to the pedestrian at the moment. The set first vehicle speed may be 20km/h and the set second vehicle speed may be 60 km/h. It should be noted that the specific values of the set first vehicle speed and the set second vehicle speed are not limited to the present invention, and those skilled in the art can select the specific values according to actual situations, because the specific values must be considered in combination with the time of the hood being fully bounced, the height of the pedestrian, and the like.
In the embodiment, the controller judges whether to send a control command or not by combining the type of the target object, the collision trigger information and the vehicle speed, and can control the engine hood not to bounce when the vehicle speed is slow, thereby reducing unnecessary maintenance cost; the engine hood is controlled not to bounce when the vehicle speed is fast, and the situation that when the engine hood does not bounce completely, a pedestrian contacts the engine hood and causes secondary damage to the head of the pedestrian when the engine hood is lifted upwards is avoided.
In order to better understand the above method, an application example of the hood control method according to the present invention is explained in detail below with reference to fig. 3 and 4.
As shown in fig. 3, the controller is an ECU306(Electronic Control Unit) provided in the airbag. The detection means are a camera 302 provided at the front windshield and a millimeter wave radar 304 provided at the front bumper. The crash trigger is a pressure sensor 308 provided at the front bumper. Actuator 310 is disposed below a hood 312. The preset type condition of the target object is a pedestrian, and the reference time is 2 seconds.
It should be noted that the communication modes between the ECU and the camera, and between the ECU and the pressure sensor may be, but are not limited to: wireless communication (transmission communication without propagation via conductors or cables, such as WiFi, cellular networks, etc.), and wired communication (information is transmitted using tangible media, such as metal wires or optical fibers).
Referring to fig. 3 and 4, the specific implementation process of the control method of the engine hood is as follows:
s402, the camera 302 collects image information, and the millimeter wave radar 304 collects electromagnetic wave information.
S404, the ECU306 acquires image information and electromagnetic wave information.
S406, the ECU306 determines whether the light is sufficient.
S406a, if the light is sufficient, the ECU306 takes the image information as the vehicle detection information;
s406b, if the light is insufficient, the ECU306 uses the electromagnetic wave information as the vehicle detection information.
S408, the ECU306 selects and analyzes the vehicle detection information within the set distance (the product of the vehicle speed and the reference time).
S410, the ECU306 judges whether the vehicle detection information contains a pedestrian or not. If no pedestrian exists, returning to S402; if there is a pedestrian and a collision occurs, the pressure sensor 308 sends a pressure value, at which a change in transmission is detected, to the ECU306 (S412).
S414, the ECU306 acquires the vehicle speed and judges whether the vehicle speed is in the range of 20km/h to 40 km/h. If the vehicle speed is not in the range, finishing the judgment operation; if the vehicle speed is within the range, it is further determined whether the pressure value reaches a pressure threshold value (S416).
S418, if the pressure value does not reach the pressure threshold value, ending the judgment operation; if the pressure value reaches the pressure threshold, the ECU306 sends a control command to the actuator 310.
S420, after the actuator 310 receives the control command, the engine cover 312 is popped up.
In the embodiment, the ECU judges whether a control command needs to be sent to the actuator by combining whether a pedestrian is in front of the vehicle, whether the pressure of the vehicle in collision reaches a pressure threshold value and whether the vehicle speed is 20km/h to 40km/h, so that the actuator can bounce the transmitter hood, the engine hood can bounce if necessary, and the accuracy of the engine hood bounce is improved.
It should be noted that, for the sake of simplicity, the foregoing method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention.
The present invention also provides a hood control device that can be used to execute the above-described hood control method, based on the same idea as the hood control method in the above-described embodiment. For convenience of explanation, only the parts related to the embodiments of the present invention are shown in the schematic structural views of the embodiments of the control device of the hood, and those skilled in the art will understand that the illustrated structure does not constitute a limitation of the device, and may include more or less components than those illustrated, or combine some components, or arrange different components.
As shown in fig. 5, the hood control device 500 includes a first information acquisition module 502, a type determination module 504, a second information acquisition module 506, and a control instruction transmission module 508, which are described in detail below:
the first information obtaining module 502 is configured to obtain vehicle detection information, where the vehicle detection information is collected by a detection device.
The type determining module 504 is configured to determine a type of the target object if the vehicle detection information carries the target object.
The second information obtaining module 506 is configured to obtain collision trigger information if the type of the target object meets a preset type condition, where the collision trigger information is obtained when the vehicle collides.
And the control instruction sending module 508 is used for sending a control instruction to the actuator if the collision trigger information meets the set trigger condition, wherein the control instruction is used for controlling the actuator to bounce the engine hood.
In the embodiment, the controller judges whether a control instruction needs to be sent to the actuator or not by combining the type of the target object and the collision trigger information, so that the accuracy of hood bounce is improved.
In one embodiment, the first information acquisition module is further configured to acquire vehicle detection information within a set distance in front of the vehicle.
In one embodiment, the control device for a hood further includes: and the set distance determining module is used for determining the set distance according to the predetermined reference time and the vehicle speed of the vehicle.
In one embodiment, the detection device comprises a camera; the first information acquisition module is also used for receiving the image information acquired by the camera as the vehicle detection information.
In one embodiment, the detection means comprises a millimeter wave radar; the first information acquisition module is also used for receiving the electromagnetic wave information acquired by the millimeter wave radar as vehicle detection information.
In one embodiment, the control instruction sending module includes: the collision time determining submodule is used for determining the time when the collision trigger information meets the set trigger condition as the collision time if the collision trigger information meets the set trigger condition; the identification time determining submodule is used for determining the time when the type of the target object meets the preset type condition as identification time; and the control instruction first sending submodule is used for sending a control instruction to the actuator if the difference value between the collision time and the recognition time meets the set time difference value condition.
In one embodiment, the control instruction sending module includes: the vehicle speed obtaining submodule is used for obtaining the vehicle speed of the vehicle; and the control instruction second sending submodule is used for sending a control instruction to the actuator if the vehicle speed of the vehicle meets the set vehicle speed range.
In one embodiment, the second information obtaining module is further configured to obtain the collision trigger information if the target object is a pedestrian.
It should be noted that the control device for the hood of the present invention corresponds to the control method for the hood of the present invention, and the technical features and the advantages thereof described in the above embodiments of the control method for the hood are all applicable to the embodiments of the control device for the hood, and specific contents can be referred to the description of the embodiments of the method of the present invention, which is not repeated herein, and thus, the description is omitted.
In addition, in the above-described exemplary embodiments of the control device of the hood, the logical division of the program modules is only an example, and in practical applications, the above-described functions may be distributed by different program modules according to needs, for example, due to the configuration requirements of the corresponding hardware or the convenience of implementation of software, that is, the internal structure of the control device of the hood is divided into different program modules to implement all or part of the above-described functions.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, the computer program, when executed by a processor, implementing the steps in the hood control method provided by the various embodiments described above.
In one embodiment, a computer device is provided, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the hood control method provided in each of the above embodiments.
The control method of the engine hood provided by the invention can be applied to computer equipment shown in fig. 6. The computer device may be a server, and its internal structure diagram may be as shown in fig. 6. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor is configured to provide computing and control capabilities; the memory includes a nonvolatile storage medium storing an operating system, a computer program (which when executed by the processor implements a hood control method), and a database, an internal memory providing an environment for the operation of the operating system and the computer program in the nonvolatile storage medium; the database is used for storing data such as vehicle detection information, collision triggering information and the like; the network interface is used for communicating with an external terminal through network connection.
Those skilled in the art will appreciate that the configuration shown in fig. 6 is a block diagram of only a portion of the configuration associated with aspects of the present invention and is not intended to limit the computing devices to which aspects of the present invention may be applied, and that a particular computing device may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
It will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program, which is stored in a computer readable storage medium and sold or used as a stand-alone product. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
The terms "comprises" and "comprising," and any variations thereof, of embodiments of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or (module) elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present invention and should not be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A hood control method characterized by comprising:
acquiring vehicle detection information; the vehicle detection information is collected by a detection device;
if the vehicle detection information carries a target object, determining the type of the target object;
if the type of the target object meets a preset type condition, acquiring collision trigger information; the collision triggering information is obtained when the vehicle collides;
if the collision trigger information meets the set trigger condition, sending a control instruction to an actuator; the control instruction is used for controlling the actuator to bounce the engine hood.
2. The method of claim 1, wherein the step of obtaining vehicle probe information comprises:
and acquiring vehicle detection information within a set distance in front of the vehicle.
3. The method of claim 2, wherein the step of obtaining vehicle detection information within a set distance in front of the vehicle is preceded by the step of:
and determining the set distance according to the predetermined reference time and the vehicle speed of the vehicle.
4. The method of claim 1, wherein the detection device comprises at least one of: a camera and a millimeter wave radar;
the step of acquiring vehicle detection information includes:
receiving image information collected by the camera as the vehicle detection information;
or the like, or, alternatively,
and receiving the electromagnetic wave information collected by the millimeter wave radar as the vehicle detection information.
5. The method according to claim 1, wherein the step of issuing a control command to an actuator if the collision trigger information satisfies a set trigger condition comprises:
if the collision trigger information meets the set trigger condition, determining the time when the collision trigger information meets the set trigger condition as collision time;
determining the time when the type of the target object meets a preset type condition as identification time;
and if the difference value between the collision time and the recognition time meets a set time difference value condition, sending a control instruction to an actuator.
6. The method of claim 1, wherein said step of issuing control commands to the actuator comprises:
acquiring the speed of the vehicle;
and if the vehicle speed meets the set vehicle speed range, sending a control command to the actuator.
7. The method of claim 1, wherein the step of obtaining collision trigger information if the type of the target object meets a preset type condition comprises:
and if the target object is a pedestrian, receiving collision trigger information sent by a pressure sensor.
8. A hood control device, characterized by comprising:
the first information acquisition module is used for acquiring vehicle detection information; the vehicle detection information is collected by a detection device;
the type determining module is used for determining the type of the target object if the vehicle detection information carries the target object;
the second information acquisition module is used for acquiring collision trigger information if the type of the target object meets a preset type condition; the collision triggering information is obtained when the vehicle collides;
the control instruction sending module is used for sending a control instruction to the actuator if the collision trigger information meets the set trigger condition; the control instruction is used for controlling the actuator to bounce the engine hood.
9. A computer device comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of the method according to any one of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored which, when executed by the processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 7.
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