Intelligent opening and closing system for front spare box of automobile and control method of intelligent opening and closing system

Abstract

The invention discloses an intelligent opening and closing system for an automobile front spare box, which is characterized in that the rear side of an automobile front cover is fixed on the rear side of an automobile forecabin through a hinge, an electric support rod and a balance rod are arranged between the front side of the front cover and the front side of the automobile forecabin, an electric suction lock is arranged on the front side of the automobile forecabin, and a lock catch matched with the electric suction lock is arranged on the front cover; the electric suction lock is driven by a lock actuator to work, the electric supporting rod and the lock actuator are connected with a controller through wire harnesses, a capacitive gesture sensor for collecting gesture information of a user in front of the automobile is installed on a front bumper or a front cover of the automobile, and the capacitive gesture sensor is connected with the controller and outputs induction signals to the controller. According to the system, intelligent opening and closing in the whole process are achieved, the front cover hovers at any position in the opening and closing process, the anti-pinch function can be achieved, the two hands are liberated, and the sense of science and technology and the satisfaction degree of users are improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile front covers, and in particular to an intelligent opening and closing system for an automobile front trunk. Background Art

[0002] The layout of the front cabin of an electric vehicle is very different from that of a traditional fuel vehicle. Without an engine, the front cabin has a larger space, which can be used to arrange a front trunk to store items, thereby increasing the storage space of the entire vehicle.

[0003] With the development of automotive electrical intelligence, the traditional mechanical way of opening the front trunk lid still requires users to manually open and close the front lid. If it is inconvenient to operate when carrying heavy objects, these methods are not sufficient to meet the needs of users and cannot meet the needs of intelligent electrification.

[0004] For example, the public document with the announcement number CN114879848A, the publication date of August 9, 2022, and the patent name "A method, device and automobile for controlling the opening and closing of an electric hood" discloses a method, device and automobile for controlling the opening and closing of an electric hood. The method includes: when the vehicle meets the conditions for automatic control of the electric hood, obtaining a hood control instruction input by the user through static gestures outside the vehicle, dynamic actions outside the vehicle and / or human-computer interaction inside the vehicle; based on the hood control instruction, automatically opening and closing the hood by controlling the electric support rod assembly; in the process of automatically opening and closing the hood, using the force of the electric support rod assembly during this period to identify whether the hood has an anti-pinch requirement or an anti-collision requirement; when there is an anti-pinch requirement or an anti-collision requirement, suspending the automatic opening and closing control of the hood or causing the hood to move in the opposite direction according to the force value of the electric support rod.

[0005] The overall opening method is relatively simple, and the degree of intelligence is average, which cannot meet the needs of intelligent and humanized opening of the vehicle hood. Summary of the invention

[0006] The technical problem to be solved by the present invention is to realize a system that realizes personalized opening of the front cover by knocking or gestures, and fully automatically opens the front trunk by arranging actuators, sensors, and controllers, thereby realizing intelligent opening and closing of the front trunk.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a smart opening and closing system for a car trunk, wherein the rear side of the car hood is fixed to the rear side of the car front cabin by a hinge, an electric strut and a balance bar are arranged between the front side of the hood and the front side of the car front cabin, an electric suction lock is arranged on the front side of the car front cabin, a lock buckle cooperating with the electric suction lock is arranged on the front hood, the electric suction lock is driven by a lock actuator, the electric strut and the lock actuator are connected to a controller via a wiring harness, a capacitive gesture sensor for collecting gesture information of a user in front of the car is installed on the front bumper or the front hood of the car, and the capacitive gesture sensor is connected to and outputs a sensing signal to the controller.

[0008] An AR sensing sensor is installed on the front bumper of the car, and the AR sensing sensor is connected to and outputs a sensing signal to a controller.

[0009] A knock sensor is installed in the fender area of ​​the automobile, and the knock sensor is connected to and outputs a sensing signal to a controller.

[0010] The controller is connected to the millimeter-wave radar on the front bumper of the car that collects obstacle signals in front of the car, and the central control system in the car through LIN.

[0011] The electric suction lock and the lock actuator are installed and fixed on the water tank cross beam of the automobile. The forward transmission of the motor of the lock actuator realizes the electric opening function of the lock, and the reverse transmission of the motor realizes the lock suction function.

[0012] A method for intelligently opening and closing a front trunk of a vehicle based on the intelligent opening and closing system for the front trunk of the vehicle:

[0013] Step 1: Trigger the intelligent cover opening recognition function and give a cover opening recognition prompt;

[0014] Step 2: Start the intelligent cover opening recognition mechanism and continue the recognition;

[0015] Step 3: If the cover opening action is recognized, open the front cover;

[0016] Step 4: If a stop action is detected during the opening process, the front cover is suspended;

[0017] Step 5: If the closing action is recognized, close the front cover.

[0018] When the key signal is recognized in the set area in front of the car and there is a person within the set distance in front of the car, the intelligent lid opening recognition mechanism is activated;

[0019] The lid opening recognition prompt is to project an image on the ground in front of the car, and the image includes a standing area, a lid opening stepping area, and a lid closing stepping area;

[0020] When the stepping on the cover-opening stepping area is identified, the cover-opening action is performed, and when the stepping on the cover-closing stepping area is identified, the cover-closing action is performed.

[0021] When the key signal is recognized in the set area in front of the car and there is a person within the set distance in front of the car, the intelligent lid opening recognition mechanism is activated;

[0022] The cover opening recognition prompt is that the front lights of the car light up according to the set program;

[0023] When it is recognized that the user touches or knocks the front cover according to the set logic, the cover opening action or the cover closing action is performed.

[0024] When the key signal is recognized in the set area in front of the car and there is a person within the set distance in front of the car, the intelligent lid opening recognition mechanism is activated;

[0025] The cover opening recognition prompt is a light beam projected diagonally upward at the front of the car;

[0026] When it is recognized that the user makes a set cover opening gesture within the light beam, the cover opening action is executed, and when it is recognized that the user makes a set cover closing gesture within the light beam, the cover closing action is executed.

[0027] In the steps 4 and 5, if the opening action or closing action is recognized again during the opening process, the front cover is suspended;

[0028] After the intelligent lid opening recognition mechanism is activated, if it is recognized that the key signal leaves the set area in front of the car, the lid opening action is not allowed;

[0029] After the intelligent lid opening recognition mechanism is activated, if it is recognized that the key signal leaves the set area in front of the car for more than the set time, if the front cover is in the closed state, the intelligent lid opening recognition mechanism and the lid opening recognition prompt are turned off;

[0030] After the intelligent lid opening recognition mechanism is started, it is recognized that the key signal leaves the set area in front of the car for more than the set time. If the front cover is open, the front cover, the intelligent lid opening recognition mechanism, and the lid opening recognition prompt are closed at the same time.

[0031] The present invention adopts the form of human-computer interaction. When the vehicle meets the electric control conditions of the front cover, the user sends a signal through the corresponding controller through the knocking action, dynamic gesture, or light curtain projection logo outside the vehicle. After receiving the control command, the self-closing / electric release lock of the front cover is activated, and then the electric support rod of the front cover supports the front cover to automatically open or close, realizing intelligent opening and closing of the whole process. In addition, during the opening and closing process, the front cover can be suspended at any position and can realize the anti-pinch function, freeing both hands, increasing the sense of technology and user satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The following is a brief description of the contents expressed in each figure in the specification of the present invention and the marks in the figure:

[0033] Figure 1 This is a schematic diagram of the structure of the intelligent opening and closing system of the front trunk of a car;

[0034] Figure 2 This is the principle block diagram of the intelligent opening and closing system of the front trunk of the car;

[0035] The marks in the above figures are: 1. Electric support bar; 2. Balance bar; 3. Front cover; 4. Electric suction lock; 5. Lock actuator; 6. Front guard; 7. Capacitive gesture sensor; 8. AR sensing sensor; 9. Wiring harness; 10. Controller. DETAILED DESCRIPTION

[0036] The following is a further detailed description of the specific implementation methods of the present invention, such as the shape, structure, relative position and connection relationship between the various components involved, the function and working principle of each part, the manufacturing process and operation method, etc., through the description of the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0037] The car front trunk intelligent opening and closing system is an improvement on the existing front cover 3 system. It specifically solves the mechanical manual opening or simple electric control opening method of the front cover 3 of the electric car with a front trunk, realizes intelligent opening and closing, and at the same time has a more technological and personalized opening and closing control method, such as realizing the opening and closing control of the front cover 3 by knocking on the fender or the front bumper 6 grid area; realizing the opening and closing control of the front cover 3 by dynamic gestures; realizing the opening and closing control of the front cover 3 by stepping on the front projection light curtain logo, etc.

[0038] like Figure 1 As shown, the rear side of the front bonnet 3 of the automobile is fixed to the rear side of the front cabin of the automobile by a hinge, and an electric strut 1 and a balance bar 2 are provided between the front side of the front bonnet 3 and the front side of the front cabin of the automobile. The electric strut 1 and the balance bar 2 are respectively located at the two ends of the front side of the front bonnet 3, one end of the electric strut 1 and the balance bar 2 are fixed to the front cabin, and the other end is fixed to the front bonnet 3, and the opening and closing of the strut is completed by motor drive. The structure in which the electric strut is arranged on one side and the balance bar 2 is arranged on the other side simplifies the production process and reduces the procurement cost; the electric opening process is realized, and the diversified opening methods bring personalized user experience and enhance the user's demand for vehicle intelligence.

[0039] An electric suction lock 4 is provided at the front side of the front cabin of the automobile, a lock buckle cooperating with the electric suction lock 4 is provided on the front cover 3, the electric suction lock 4 and the lock actuator 5 are installed and fixed on the water tank cross beam, the forward transmission of the motor of the lock actuator 5 realizes the electric opening function of the lock, and the reverse transmission of the motor realizes the lock suction function, the electric support rod 1 and the lock actuator 5 are connected through the wiring harness 9 and the controller 10 to realize the input and output of the signal;

[0040] A sensing mechanism is provided at the front of the car, which is used to receive action instructions from the device user, a capacitive gesture sensor 7 installed on the front bumper 6 or the front cover 3, an AR sensing sensor 8 installed at the front bumper 6, a knock sensor installed in the fender area, and a camera installed at the front of the car. The sensing mechanism is connected to the controller 10 through a wiring harness 9 to receive and send signals, realize human-computer interaction, and realize opening and closing control.

[0041] By knocking on the fender area where the knock sensor is installed, the knocking generates elastic waves, and the sensor collects data and transmits it to the KK controller 10. After algorithm processing, if it is determined to be a valid KK, it is fed back to the main controller 10, and a command to open the front trunk is issued.

[0042] The electric front cover 3 controller 10 sends a radar start detection instruction through LIN communication; the millimeter wave radar in the AR sensing sensor 8 is awakened, and then the projection lamp projects the personality icon / company logo on the ground, and then lightly steps on the position indicated by the personality icon / company logo, or sweeps the leg in the projection area; after the radar module detects a valid change, the icon / logo flashes, and then the door opening information is sent to the controller 10 through LIN, and a command to open the front trunk is issued.

[0043] The camera cooperates with the beam lighting (similar to a searchlight that can form a beam) to identify gestures within the beam lighting. By constraining the gesture action area through the beam, the area used by the camera can be reduced, the reliability of judgment can be improved, the hardware computing power requirements can be reduced, and sufficient illumination can be provided for gestures at night to improve the accuracy of recognition. In order to facilitate the identification of the beam position during the day, the lighting can use a colored lighting, for example, the emitted beam is purple.

[0044] The controller 10 is connected to the millimeter-wave radar on the front bumper 6 of the car that collects obstacle signals in front of the car, and the central control system in the car through LIN. The internal central control system can set action instructions and start partial acquisition of full action recognition, making the system more intelligent and humanized.

[0045] The intelligent opening and closing method of the front trunk of a car based on the above-mentioned intelligent opening and closing system of the front trunk of the car:

[0046] Normally, the sensing unit is closed. The intelligent cover opening recognition function is triggered, and the cover opening recognition prompt is given to start the intelligent cover opening recognition mechanism. Only then does the sensing unit start working to avoid false touches and misjudgments. If the cover opening action is recognized, the front cover 3 is opened; if the stop action is recognized during the cover opening process, the front cover 3 is suspended; if the closing action is recognized, the front cover 3 is closed.

[0047] During the opening or closing process, the controller 10 can detect the changes in the motor current and Hall signal of the electric support rod, and can perform anti-pinch identification and anti-pinch protection. At the same time, during operation, according to the change of load, the ECU control system also calculates the running speed of the motor through the Hall signal. If the speed is greater than the set expected target speed, the PWM is reduced and the motor speed will slow down. If the motor speed is monitored to be less than the set expected target speed, the PWM is increased, the motor will accelerate, and it can hover in the entire area.

[0048] After the system receives the front trunk opening command, the controller 10 sends a signal to the front cover 3 lock actuator 5. The front cover 3 lock actuator 5 is powered on in the forward direction once to open the primary lock, powered on in the reverse direction to reset, and powered on in the forward direction once again to open the secondary lock. The lock body reaches the fully open state and is powered on in the reverse direction to reset. Because the lock body is double-pull open, the actuator needs to perform two opening actions on the lock body during the electric opening process. After the lock opening action is completed, the main controller 10 sends a command to the electric support rod, and the motor in the electric support rod is driven to complete the opening of the support rod, realizing the automatic opening of the front cover 3.

[0049] Closing process: After the system receives the front trunk closing command, the controller 10 sends a command to the electric strut, and the motor in the electric strut drives the strut in reverse to complete the closing of the strut. The lock hook of the front cover 3 falls into the lock card. After receiving the signal, the controller 10 outputs a signal to the lock actuator 5, and the lock actuator 5 drives the self-closing lock to perform the suction action, and the front cover 3 closes automatically.

[0050] Through the description of the specific implementation of the present invention, it can be known that the present invention allows the user to tap the front fender or the front bumper 6 outside the vehicle, or to make a non-contact gesture in the front bumper 6 area, or to project a light curtain in the front bumper 6 area, or to step on the foot to input the command to open or close the front cover 3, and then

[0051] The vehicle can automatically open or close the front cover 3 according to the received command, freeing your hands and improving the intelligent electrification level of the front cover 3. In addition, the vehicle can achieve full-area hovering and anti-pinch function during the opening and closing process, which is safer and more comfortable.

[0052] The system can be customized to enable some or all of the following intelligent cover opening recognition mechanism functions as needed;

[0053] 1. When the key signal is recognized in the set area in front of the car and there is a person within the set distance in front of the car, the intelligent lid opening recognition mechanism is activated;

[0054] The lid opening recognition prompt is to project an image on the ground in front of the car, which includes a standing area, a lid opening stepping area, and a lid closing stepping area. The lid opening stepping area and the lid closing stepping area can be set to be the same as needed; the user's stepping action is adopted through the camera;

[0055] When the cover-opening treading area is recognized (to avoid accidental touch, it needs to be stepped on 3 times before execution), the cover-opening action is performed; when the cover-closing treading area is recognized, the cover-closing action is performed.

[0056] When the key signal is recognized in the set area in front of the car (to avoid accidental touch, it needs to be stepped on 3 times before execution), and there is someone within the set distance in front of the car, the intelligent lid opening recognition mechanism is activated;

[0057] 2. The cover opening recognition prompt is that the front lights of the car light up according to the set program, such as the running lights flashing, or "flowing" back and forth like water, so that users can know that the function has been turned on;

[0058] When it is recognized that the user touches the front cover 3 or knocks the front cover 3 according to the set logic, the cover opening action is executed, or the cover closing action is executed, such as clicking three times in succession.

[0059] 3. When the key signal is recognized in the set area in front of the car and there is a person within the set distance in front of the car, the intelligent lid opening recognition mechanism is activated;

[0060] The lid opening recognition prompt is to shoot a light beam diagonally upward at the front of the car, and the camera recognizes the gesture within the light beam;

[0061] When it is recognized that the user makes a set opening gesture in the light beam (such as placing the palm flat and rising along the light beam), the opening action is executed. When it is recognized that the user makes a set closing gesture in the light beam (such as placing the palm flat and descending along the light beam), the closing action is executed.

[0062] If the opening action or closing action is recognized again during the opening process, the front cover is suspended 3;

[0063] After the intelligent lid opening recognition mechanism is activated, if it is recognized that the key signal leaves the set area in front of the car, the lid opening action is not allowed;

[0064] After the intelligent cover opening recognition mechanism is started, if it is recognized that the key signal leaves the set area in front of the car for more than the set time, if the front cover 3 is in the closed state, the intelligent cover opening recognition mechanism and the cover opening recognition prompt are turned off;

[0065] After the intelligent cover opening recognition mechanism is started, it is recognized that the key signal leaves the set area in front of the car for more than the set time. If the front cover 3 is in the open state, the front cover 3, the intelligent cover opening recognition mechanism, and the cover opening recognition prompt are closed at the same time.

[0066] Through the description of the specific implementation of the present invention, it can be known that the present invention allows the user to tap the front fender or the front bumper 6 outside the vehicle, or to make a non-contact gesture in the front bumper 6 area, or to project a light curtain in the front bumper 6 area, or to step on the foot to input the command to open or close the front cover 3, and then

[0067] The vehicle can automatically open or close the front cover 3 according to the received command, freeing your hands and improving the intelligent electrification level of the front cover 3. In addition, the vehicle can achieve full-area hovering and anti-pinch function during the opening and closing process, which is safer and more comfortable.

[0068] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An intelligent opening and closing system for a car trunk, wherein the rear side of the car hood is fixed to the rear side of the car front cabin by a hinge, an electric strut and a balance bar are arranged between the front side of the hood and the front side of the car front cabin, an electric suction lock is arranged on the front side of the car front cabin, a lock buckle cooperating with the electric suction lock is arranged on the hood, the electric suction lock is driven to work by a lock actuator, the electric strut and the lock actuator are connected to a controller by a wiring harness, and the characteristics are: A capacitive gesture sensor for collecting gesture information of a user in front of the car is installed on the front bumper or front cover of the car. The capacitive gesture sensor is connected to and outputs a sensing signal to a controller.

2. The intelligent opening and closing system for the front trunk of a car according to claim 1 is characterized in that: An AR sensing sensor is installed on the front bumper of the car, and the AR sensing sensor is connected to and outputs a sensing signal to a controller.

3. The intelligent opening and closing system for the front trunk of a car according to claim 2 is characterized in that: A knock sensor is installed in the fender area of ​​the automobile, and the knock sensor is connected to and outputs a sensing signal to a controller.

4. The intelligent opening and closing system for the front trunk of a car according to claim 3 is characterized in that: The controller is connected to the millimeter-wave radar on the front bumper of the car that collects obstacle signals in front of the car, and the central control system in the car through LIN.

5. The intelligent opening and closing system for the front trunk of an automobile according to any one of claims 1 to 4, characterized in that: The electric suction lock and the lock actuator are installed and fixed on the water tank cross beam of the automobile. The forward transmission of the motor of the lock actuator realizes the electric opening function of the lock, and the reverse transmission of the motor realizes the lock suction function.

6. A method for intelligently opening and closing a front trunk of a vehicle based on the intelligent opening and closing system for a front trunk of a vehicle according to any one of claims 1 to 5, characterized in that: Step 1: Trigger the intelligent cover opening recognition function and give a cover opening recognition prompt; Step 2: Start the intelligent cover opening recognition mechanism and continue the recognition; Step 3: If the cover opening action is recognized, open the front cover; Step 4: If a stop action is detected during the opening process, the front cover is suspended; Step 5: If the closing action is recognized, close the front cover.

7. The method for intelligently opening and closing the front trunk of a car according to claim 6, characterized in that: When the key signal is recognized in the set area in front of the car and there is a person within the set distance in front of the car, the intelligent lid opening recognition mechanism is activated; The lid opening recognition prompt is to project an image on the ground in front of the car, and the image includes a standing area, a lid opening stepping area, and a lid closing stepping area; When the stepping on the cover-opening stepping area is identified, the cover-opening action is performed, and when the stepping on the cover-closing stepping area is identified, the cover-closing action is performed.

8. The method for intelligently opening and closing the front trunk of a car according to claim 6, characterized in that: When the key signal is recognized in the set area in front of the car and there is a person within the set distance in front of the car, the intelligent lid opening recognition mechanism is activated; The cover opening recognition prompt is that the front lights of the car light up according to the set program; When it is recognized that the user touches or knocks the front cover according to the set logic, the cover opening action or the cover closing action is performed.

9. The method for intelligently opening and closing the front trunk of a car according to claim 6, characterized in that: When the key signal is recognized in the set area in front of the car and there is a person within the set distance in front of the car, the intelligent lid opening recognition mechanism is activated; The cover opening recognition prompt is a light beam projected diagonally upward at the front of the car; When it is recognized that the user makes a set cover opening gesture within the light beam, the cover opening action is executed, and when it is recognized that the user makes a set cover closing gesture within the light beam, the cover closing action is executed.

10. The method for intelligently opening and closing the front trunk of a vehicle according to claim 6, 7, 8 or 9, characterized in that: In the steps 4 and 5, if the opening action or closing action is recognized again during the opening process, the front cover is suspended; After the intelligent lid opening recognition mechanism is activated, if it is recognized that the key signal leaves the set area in front of the car, the lid opening action is not allowed; After the intelligent lid opening recognition mechanism is activated, if it is recognized that the key signal leaves the set area in front of the car for more than the set time, if the front cover is in the closed state, the intelligent lid opening recognition mechanism and the lid opening recognition prompt are turned off; After the intelligent lid opening recognition mechanism is started, it is recognized that the key signal leaves the set area in front of the car for more than the set time. If the front cover is open, the front cover, the intelligent lid opening recognition mechanism, and the lid opening recognition prompt are closed at the same time.

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