CN114740766A - Tail gate opening and closing control system and method - Google Patents
Tail gate opening and closing control system and method Download PDFInfo
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- CN114740766A CN114740766A CN202210140643.0A CN202210140643A CN114740766A CN 114740766 A CN114740766 A CN 114740766A CN 202210140643 A CN202210140643 A CN 202210140643A CN 114740766 A CN114740766 A CN 114740766A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/10—Doors arranged at the vehicle rear
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention relates to a tail gate switch control system and a tail gate switch control method, wherein the system comprises a central controller, a millimeter wave radar sensor, a projection lamp and a tail gate controller, the millimeter wave radar sensor, the projection lamp and the tail gate controller are all connected with the central controller, the projection lamp is used for illuminating a preset area, the central controller is set to control the projection lamp to be turned on and control the millimeter wave radar sensor to work when the position of a vehicle key is detected to enter a tail gate trigger area, the millimeter wave radar sensor is set to send a control instruction to the central controller when an object is detected to enter the preset area and does not leave the preset area within preset time or when a kick action executed by the object in the preset area is detected to accord with the threshold characteristic of a preset point cloud model. Whether trigger action happens in the preset area is detected by indicating the preset area, so that the tail gate can be accurately controlled to be opened or closed.
Description
Technical Field
The invention relates to the technical field of automobile intelligent control, in particular to a tail gate opening and closing control system and a tail gate opening and closing control method.
Background
From birth to now, automobiles bring great convenience to the life of people. With the advance of technology, automobiles are developing in a direction of increasing intelligence. Traditional car tail-gate generally uses auxiliary component such as air spring, torsional spring to with manual opening close the tail-gate, the user thinks that it is inconvenient mostly, hope that the trunk can open automatically when needs and close, it is more convenient, more random, then, electronic tail-gate is in charge of.
The electric tail gate of the automobile, namely the electric trunk, means that the trunk is electrically driven to be opened or closed. When a trunk of a vehicle is opened, the trunk is generally required to be controlled to be unlocked through an unlocking button on the trunk. When a user holds things with both hands, the tail opening gate is inconvenient; or when the user opens the tail gate and moves east and west, both hands are occupied, can't close the tail gate conveniently, cause the experience of unblock poor.
Therefore, it is desirable to provide a tailgate opening/closing control system that accurately controls the opening or closing of a tailgate and improves the user experience to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problem, the invention provides a tail gate opening and closing control system. The problem of inconvenient switch tail-gate and can not accurately open or close the tail-gate when user's both hands are taken up among the prior art is solved.
The technical effects of the invention are realized as follows:
a tail gate switch control system comprises a central controller, a millimeter wave radar sensor, a projection lamp and a tail gate controller, wherein the millimeter wave radar sensor, the projection lamp and the tail gate controller are all connected with the central controller, the projection lamp is used for illuminating a preset area, the central controller is set to control the projection lamp to be lightened and control the millimeter wave radar sensor to work when the position of a detected vehicle key enters a tail gate trigger area, the millimeter wave radar sensor is set to send a control command to the central controller when an object is detected to enter the preset area and does not leave the preset area within preset time or when a kicking action of the object executed within the preset area is detected to accord with threshold characteristics of a preset point cloud model, and the central controller obtains the state of a tail gate of a vehicle when receiving the control command, if the tail gate of the vehicle is in an open state, controlling the tail gate controller to close the tail gate; and if the vehicle tail gate is in a closed state, controlling the tail gate controller to open the tail gate. Through setting up and predetermineeing the region for whether millimeter wave radar sensor can detect and take place to trigger the action in predetermineeing the region, opening or closing of control tail-gate more accurately, avoided instructing the user to kick the problem that the region is undefined to lead to the tail-gate reaction insensitive or the spurious triggering, and simultaneously, shine through the projection lamp and predetermine the region, instruct the user to accomplish the trigger action that the control tail-gate was opened or was closed in predetermineeing the region, the problem of inconvenient switch tail-gate when user's both hands are taken up among the prior art has been solved. When the position that detects the vehicle key through the restriction enters into the tail-gate and triggers in the region, control projection lamp lights and controls millimeter wave radar sensor work simultaneously, further avoids passerby to cross the problem that leads to the tail-gate to trigger by mistake.
Furthermore, the projection lamp is used for generating a dynamic indicator through dynamically adjusting light so as to guide a user to complete a triggering action according to the indicator. Through the instruction sign that generates developments be convenient for guide user and accomplish the action of triggering according to the sign, realize opening or closing of tail-gate fast, simultaneously, strengthened tail-gate intelligent control's ceremonial sense, promoted user's science and technology experience and felt.
Further, the central controller is a TCAM, a CEM, or a BCM.
In addition, a tail gate switch control method is also provided, and the method is implemented based on the tail gate switch control system, and the method includes:
when the vehicle detects a key signal, controlling the projection lamp to light the preset area and awakening the millimeter wave radar sensor to detect whether an object enters the preset area;
when the millimeter wave radar sensor detects that an object enters a preset area, judging whether the object leaves the preset area within preset time;
if the object leaves the preset area within the preset time, no operation is needed; if the object does not leave the preset area within the preset time, acquiring the state of the tail gate of the vehicle;
when the vehicle tail gate is in an open state, controlling the vehicle tail gate to be closed; and when the vehicle tail gate is in a closed state, controlling the vehicle tail gate to be opened.
Further, when detecting that an object enters the preset area, judging whether the object leaves the preset area within the preset time includes:
when detecting that an object enters a preset area, sending a first signal to a central controller;
when detecting that the object in the preset area leaves the preset area within the preset time, sending a second signal to the central controller;
when the central controller receives the second signal after receiving the first signal, judging that the object leaves the preset area within the preset time; and when the central controller does not have the second signal after receiving the first signal, judging that the object does not leave the preset area within the preset time.
Further, the millimeter wave radar sensor is used for judging whether an object enters a preset area or not by acquiring a point cloud track of the object based on the first preset point cloud model.
Further, when the vehicle tail gate is in an open state, controlling the vehicle tail gate to be closed; when the vehicle tail-gate is in the closed condition, control the vehicle tail-gate and open, include:
when the vehicle tail gate is in an open state, the central controller is controlled to send a closing signal to the tail gate controller so as to control the vehicle tail gate to be closed;
when the vehicle tail gate is in a closed state, the central controller is controlled to send an opening signal to the tail gate controller so as to control the vehicle tail gate to be opened.
In addition, a tail gate switch control method is also provided, and the method is implemented based on the tail gate switch control system, and the method includes:
when the vehicle detects a key signal, controlling the projection lamp to light a preset area and awakening the millimeter wave radar sensor;
when the millimeter wave radar sensor detects that an object executes kicking actions in a preset area, acquiring a point cloud track in the kicking action executing process of the object, wherein the point cloud track is formed by point cloud data detected by the millimeter wave radar sensor, and the point cloud data are three-dimensional coordinate points corresponding to the object in the moving process;
judging whether the point cloud track meets the threshold characteristics of a third preset point cloud model or not based on the third preset point cloud model, wherein the threshold characteristics are a three-dimensional space corresponding to the third preset point cloud model;
if the point cloud track does not accord with the threshold characteristic of a third preset point cloud model, no operation is needed; if the point cloud track meets the threshold characteristic of a third preset point cloud model, acquiring the state of a tail gate of the vehicle;
when the vehicle tail gate is in an open state, controlling the vehicle tail gate to close; and when the vehicle tail gate is in a closed state, controlling the vehicle tail gate to be opened.
Further, judging whether the point cloud track accords with the threshold characteristics of a third preset point cloud model based on the third preset point cloud model, including:
acquiring threshold characteristics of a third preset point cloud model and point cloud data corresponding to the point cloud track;
when more than or equal to 80% of the point cloud data in the point cloud track is located in the threshold characteristic, judging that the point cloud track conforms to the threshold characteristic of a third preset point cloud model;
and when less than 80% of the point cloud data in the point cloud track is located in the threshold characteristic, judging that the point cloud track does not conform to the threshold characteristic of a third preset point cloud model. And determining whether the user finishes the triggering action of controlling the tail gate to be opened or closed by judging whether the point cloud track of the object in the moving process accords with the threshold characteristic of a third preset point cloud model or not so as to control the tail gate to be automatically opened or closed.
Further, when the vehicle tail gate is in an open state, controlling the vehicle tail gate to be closed; when the vehicle tail-gate is in the closed condition, control the vehicle tail-gate and open, include:
when the vehicle tail gate is in an open state, the central controller is controlled to send a closing signal to the tail gate controller so as to control the vehicle tail gate to be closed;
when the vehicle tail gate is in a closed state, the central controller is controlled to send an opening signal to the tail gate controller so as to control the vehicle tail gate to be opened.
As described above, the present invention has the following advantageous effects:
1) through setting up and predetermineeing the region for whether millimeter wave radar sensor can detect and take place to trigger the action in predetermineeing the region, opening or closing of control tail-gate more accurately, avoided instructing the user to kick the problem that the region is undefined to lead to the tail-gate reaction insensitive or the spurious triggering, and simultaneously, shine through the projection lamp and predetermine the region, instruct the user to accomplish the trigger action that the control tail-gate was opened or was closed in predetermineeing the region, the problem of inconvenient switch tail-gate when user's both hands are taken up among the prior art has been solved. When the position that detects the vehicle key through the restriction enters into the tail-gate and triggers in the region, control projection lamp lights and controls millimeter wave radar sensor work simultaneously, further avoids passerby to cross the problem that leads to the tail-gate to trigger by mistake.
2) When the position that detects the vehicle key through the restriction enters into the tail-gate and triggers in the region, control projection lamp lights and controls millimeter wave radar sensor work simultaneously, further avoids passerby to cross the problem that leads to the tail-gate to trigger by mistake.
3) Through the instruction sign that generates developments be convenient for guide user and accomplish the action of triggering according to the sign, realize opening or closing of tail-gate fast, simultaneously, strengthened tail-gate intelligent control's ceremonial sense, promoted user's science and technology experience and felt.
4) And determining whether the user finishes the kicking action for controlling the tail gate to be opened or closed by judging whether the point cloud track of the object in the moving process accords with the threshold characteristic of a third preset point cloud model or not so as to control the tail gate to be automatically opened or closed.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art it is also possible to derive other drawings from these drawings without inventive effort.
Fig. 1 is a structural block diagram of a tail gate switch control system provided in an embodiment of the present specification;
fig. 2 is a flowchart of a tail gate opening and closing control method provided in an embodiment of the present disclosure;
fig. 3 is a flowchart of another tail gate switch control method provided in an embodiment of the present disclosure.
Wherein the reference numerals in the figures correspond to:
the device comprises a central controller 1, a millimeter wave radar sensor 2, a projection lamp 3 and a tail gate controller 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1:
as shown in fig. 1, the present specification provides a tailgate opening and closing control system, which includes a central controller 1, a millimeter wave radar sensor 2, a projection lamp 3, and a tailgate controller 4, where the millimeter wave radar sensor 2, the projection lamp 3, and the tailgate controller 4 are all connected to the central controller 1, the projection lamp 3 is used to illuminate a preset area, the central controller 1 is configured to control the projection lamp 3 to illuminate and control the millimeter wave radar sensor 2 to operate when detecting that a position of a vehicle key enters a tailgate trigger area, the millimeter wave radar sensor 2 is configured to send a control instruction to the central controller 1 when detecting that an object enters the preset area and does not leave the preset area within a preset time or when detecting that a point cloud kicking motion performed by the object within the preset area conforms to a threshold characteristic of a preset model, and the central controller 1 obtains a state of the tailgate of the vehicle when receiving the control instruction, if the vehicle tail gate is in an open state, controlling the tail gate controller 4 to close the tail gate; if the vehicle tailgate is in a closed state, the tailgate controller 4 is controlled to open the tailgate.
Preferably, the central controller 1 is a TCAM, CEM or BCM. Wherein, TCAM is a vehicle networking controller, CEM is a central controller, BCM is a vehicle body controller.
Specifically, an antenna is arranged on the vehicle key and used for transmitting a key signal for the central controller 1 to identify, and the key signal is a bluetooth signal, a radio frequency signal or an ultra-wideband signal. Among them, the central controller 1 recognizes only the key signal of the vehicle key corresponding to the target vehicle, that is, the qualified key signal.
In this embodiment, the tailgate trigger area is an area that is less than or equal to 3.5m from the tailgate, and when the user carried the vehicle key and got into the tailgate trigger area, central controller 1 detected the key signal that the key sent, and control projection lamp 3 was lighted or sent projection lamp to light the controlling means of signal for projection lamp 3 in order to light projection lamp 3, awakens up millimeter wave radar sensor 2 or control and supplies power to millimeter wave radar sensor 2 simultaneously.
Specifically, the millimeter wave radar sensor 2 is configured to detect whether an object enters a preset area, exits from the preset area, or detect whether a preset kick operation occurs on the object. The preset area can be set by a person skilled in the art according to the habit of using the tail gate by a user.
In one embodiment, the millimeter wave radar sensor 2 is provided with a first preset point cloud model for serving as a reference model for detecting whether an object enters a preset area, and a second preset point cloud model for serving as a reference model for detecting whether an object leaves the preset area. When detecting that an object enters a preset area, the millimeter wave radar sensor 2 sends a first signal to the central controller 1; when detecting that the object located in the preset area leaves the preset area within the preset time, the millimeter wave radar sensor 2 sends a second signal to the central controller 1; when the central controller 1 receives the second signal after receiving the first signal, judging that the object leaves the preset area within the preset time; when the central controller 1 does not have the second signal after receiving the first signal, it is determined that the object does not leave the preset area within the preset time.
In another embodiment, the millimeter wave radar sensor 2 is provided with a third predetermined point cloud model for serving as a reference model for detecting whether the object performs qualified kicking actions, and when detecting that the object performs qualified kicking actions, the millimeter wave radar sensor 2 sends a signal to the central controller 1.
The signal input to the central controller 1 by the millimeter wave radar sensor 2 may be a high-low level signal, a PWM signal, a CAN signal, or a LIN signal.
Specifically, a first preset point cloud model, a second preset point cloud model and a third preset point cloud model are set by a person in the field.
The millimeter wave radar sensor 2 obtains point cloud data of a point cloud track of an object, and judges the point cloud data based on threshold characteristics corresponding to a first preset point cloud model, a second preset point cloud model and a third preset point cloud model, and the judgment method specifically comprises the following steps:
acquiring threshold characteristics corresponding to the point cloud model and point cloud data corresponding to the point cloud track; when more than or equal to 80% of the point cloud data in the point cloud track is positioned in the threshold characteristic, judging that the point cloud track conforms to the threshold characteristic of the point cloud model; and when less than 80% of the point cloud data in the point cloud track is positioned in the threshold characteristic, judging that the point cloud track does not conform to the threshold characteristic of the point cloud model.
In the present application, the corresponding triggering processes in two practical scenarios are as follows:
in the first embodiment, the preset time is 2s (which can also be calibrated by a person skilled in the art), that is, the user can step into the preset area with one foot to keep 2s to directly open or close the tail gate, and the specific control process is as follows: when a vehicle detects a qualified key signal, when the key position enters a tail gate triggering area, namely the central controller 1 detects the key signal sent by the key, the central controller 1 controls the projection lamp 3 to light or sends the projection lamp lighting signal to a control device of the projection lamp 3 to light the projection lamp 3, and simultaneously wakes up the millimeter wave radar sensor 2 or controls a power supply system of the millimeter wave radar sensor 2 to work, when a point cloud track of a foot detected by the millimeter wave radar sensor 2 is compared with a first preset point cloud model and accords with the threshold characteristic of the first preset point cloud model, a first signal is sent to the central controller 1, the central controller 1 starts timing, the millimeter wave radar sensor 2 does not send other signals within 2s (when the central controller 1 does not detect other signals within 2 s), the central controller 1 judges the switch state of the tail gate, if the tail gate is closed, the central controller 1 controls to open the electric tail gate or sends a tail gate opening signal to the tail gate controller to open the tail gate; if the tail gate is opened, the central controller 1 controls to close the electric tail gate or sends a tail gate closing signal to the tail gate controller to close the tail gate.
In a second embodiment, a user may control the opening or closing of the tailgate by performing a kick motion with a single foot in a preset area according to a preset trajectory, where the specific control process is as follows: the vehicle detects a qualified key signal, and when the position of the key signal enters a preset area of the tail gate trigger device; when the key position enters a tail gate triggering area, namely the central controller 1 detects a key signal sent by a key, the central controller 1 controls the projection lamp 3 to light or sends the projection lamp lighting signal to a control device of the projection lamp 3 to light the projection lamp 3, and simultaneously wakes up the millimeter wave radar sensor 2 or controls a power supply system of the millimeter wave radar sensor 2 to work, when a point cloud track of a foot detected by the millimeter wave radar sensor 2 is compared with a preset trigger point cloud model and accords with the threshold characteristic of a third preset point cloud model, a signal is sent to the central controller 1, the central controller 1 judges the opening and closing state of the tail gate, and if the tail gate is closed, the central controller 1 controls to open the electric tail gate or sends a tail gate opening signal to the tail gate controller to open the tail gate; if the tail gate is opened, the central controller 1 controls to close the electric tail gate or sends a tail gate closing signal to the tail gate controller to close the tail gate.
Preferably, the projection lamp 3 is used for generating a dynamic indicator by dynamically adjusting the light to guide the user to complete the trigger action according to the indicator. The dynamic indication mark may correspond to a dynamic pattern indicating that a single foot steps into a preset area, or may be a dynamic pattern indicating that a user performs a qualified kicking action.
As shown in fig. 2, an embodiment of the present specification provides a tailgate switch control method, which is implemented based on the tailgate switch control system described in the above first embodiment, and the method includes:
s110: when the vehicle detects a key signal, controlling the projection lamp 3 to light the preset area and awakening the millimeter wave radar sensor 2 to detect whether an object enters the preset area;
s210: when the millimeter wave radar sensor 2 detects that an object enters the preset area, judging whether the object leaves the preset area within preset time;
s310: if the object leaves the preset area within the preset time, the operation is not needed; if the object does not leave the preset area within the preset time, acquiring the state of the tail gate of the vehicle;
s410: when the vehicle tail gate is in an open state, controlling the vehicle tail gate to be closed; and when the vehicle tail gate is in a closed state, controlling the vehicle tail gate to be opened.
In a specific embodiment, the step S210, when it is detected that an object enters the preset area, of determining whether the object leaves the preset area within a preset time includes:
when detecting that an object enters a preset area, sending a first signal to a central controller 1;
when detecting that the object located in the preset area leaves the preset area within the preset time, sending a second signal to the central controller 1;
when the central controller 1 receives the second signal after receiving the first signal, judging that the object leaves the preset area within the preset time; when the central controller 1 does not have the second signal after receiving the first signal, it is determined that the object does not leave the preset area within the preset time.
In a specific embodiment, step S410 controls the vehicle tail gate to close when the vehicle tail gate is in an open state; when the vehicle tail-gate is in the closed condition, control the vehicle tail-gate and open, include:
when the vehicle tail gate is in an open state, the central controller 1 is controlled to send a closing signal to the tail gate controller 4 so as to control the vehicle tail gate to be closed;
when the vehicle tail gate is in a closed state, the central controller 1 is controlled to send an opening signal to the tail gate controller 4 to control the vehicle tail gate to be opened.
The signals transmitted between the central controller 1 and the tail gate controller 4 may be high and low level signals, PWM signals, CAN signals, LIN signals.
As shown in fig. 3, an embodiment of the present specification provides a tailgate switch control method, which is implemented based on the tailgate switch control system described in the second implementation above, and the method includes:
s120: when the vehicle detects a key signal, controlling the projection lamp 3 to light a preset area and awakening the millimeter wave radar sensor 2;
s220: when the millimeter wave radar sensor 2 detects that an object performs kicking actions in a preset area, acquiring a point cloud track in the kicking action performing process of the object, wherein the point cloud track is formed by point cloud data detected by the millimeter wave radar sensor 2, and the point cloud data is a corresponding three-dimensional coordinate point of the object in the moving process;
s320: judging whether the point cloud track meets the threshold characteristics of a third preset point cloud model or not based on the third preset point cloud model, wherein the threshold characteristics are a three-dimensional space corresponding to the third preset point cloud model;
s420: if the point cloud track does not accord with the threshold characteristic of a third preset point cloud model, no operation is needed; if the point cloud track accords with the threshold characteristic of a third preset point cloud model, acquiring the state of a tail gate of the vehicle;
s520: when the vehicle tail gate is in an open state, controlling the vehicle tail gate to be closed; and when the vehicle tail gate is in a closed state, controlling the vehicle tail gate to be opened.
In a specific embodiment, the step S320 of determining whether the point cloud trajectory matches a threshold feature of a third preset point cloud model based on the third preset point cloud model includes:
acquiring threshold characteristics of a third preset point cloud model and point cloud data corresponding to the point cloud track;
when more than or equal to 80% of the point cloud data in the point cloud track is located in the threshold characteristic, judging that the point cloud track conforms to the threshold characteristic of a third preset point cloud model;
and when less than 80% of the point cloud data in the point cloud track is located in the threshold characteristic, judging that the point cloud track does not conform to the threshold characteristic of a third preset point cloud model.
In a specific embodiment, step S520 controls the vehicle tail gate to close when the vehicle tail gate is in the open state; when the vehicle tail-gate is in the closed condition, control the vehicle tail-gate and open, include:
when the vehicle tail gate is in an open state, the central controller 1 is controlled to send a closing signal to the tail gate controller 4 so as to control the vehicle tail gate to be closed;
when the vehicle tail gate is in a closed state, the central controller 1 is controlled to send an opening signal to the tail gate controller 4 to control the vehicle tail gate to be opened.
Although the present invention has been described in connection with the preferred embodiments, it is not intended to be limited to the embodiments described herein, and various changes and modifications may be made without departing from the scope of the invention.
The embodiments and features of the embodiments described herein above can be combined with each other without conflict.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A tail gate switch control system is characterized by comprising a central controller (1), a millimeter wave radar sensor (2), a projection lamp (3) and a tail gate controller (4), wherein the millimeter wave radar sensor (2), the projection lamp (3) and the tail gate controller (4) are connected with the central controller (1), the projection lamp (3) is used for illuminating a preset area, the central controller (1) is arranged to control the projection lamp (3) to be turned on and control the millimeter wave radar sensor (2) to work when the position of a vehicle key is detected to enter the tail gate trigger area, the millimeter wave radar sensor (2) is arranged to send a control command to the central controller (1) when an object is detected to enter the preset area and does not leave the preset area within a preset time or when a point cloud kicking action executed by the object in the preset area is detected to accord with a threshold characteristic of a preset model, when the central controller (1) receives the control instruction, the state of the tail gate of the vehicle is obtained, and if the tail gate of the vehicle is in an open state, the tail gate controller (4) is controlled to close the tail gate; and if the tail gate of the vehicle is in a closed state, controlling the tail gate controller (4) to open the tail gate.
2. A tailgate switch control method according to claim 1, characterized in that the projection light (3) is used to generate a dynamic indicator by dynamically adjusting light to guide a user to perform a triggering action according to the indicator.
3. A tailgate switch control system, according to claim 1, characterized in that said central controller (1) is TCAM, CEM or BCM.
4. A tailgate switch control method, implemented on the basis of the tailgate switch control system according to any of claims 1-3, characterized in that it comprises:
when the vehicle detects a key signal, controlling the projection lamp (3) to light the preset area and awakening the millimeter wave radar sensor (2) to detect whether an object enters the preset area;
when the millimeter wave radar sensor (2) detects that an object enters a preset area, judging whether the object leaves the preset area within preset time;
if the object leaves the preset area within the preset time, the operation is not needed; if the object does not leave the preset area within the preset time, acquiring the state of the tail gate of the vehicle;
when the vehicle tail gate is in an open state, controlling the vehicle tail gate to be closed; and when the vehicle tail gate is in a closed state, controlling the vehicle tail gate to be opened.
5. The tailgate switch control method according to claim 4, wherein when it is detected that an object enters the preset area, determining whether the object leaves the preset area within a preset time comprises:
when detecting that an object enters a preset area, sending a first signal to a central controller (1);
when detecting that the object located in the preset area leaves the preset area within the preset time, sending a second signal to the central controller (1);
when the central controller (1) receives a second signal after receiving the first signal, judging that the object leaves a preset area within preset time; and when the central controller (1) does not have the second signal after receiving the first signal, judging that the object does not leave the preset area within the preset time.
6. A tailgate switch control method according to claim 5, characterized in that the millimeter wave radar sensor (2) is configured to determine whether an object enters a preset area by obtaining a point cloud trajectory of the object based on a first preset point cloud model.
7. The tailgate switch control method according to claim 4, characterized in that when the vehicle tailgate is in an open state, the vehicle tailgate is controlled to be closed; when the vehicle tail-gate is in the closed condition, control the vehicle tail-gate and open, include:
when the vehicle tail gate is in an open state, the central controller (1) is controlled to send a closing signal to the tail gate controller (4) to control the vehicle tail gate to be closed;
when the vehicle tail gate is in a closed state, the central controller (1) is controlled to send an opening signal to the tail gate controller (4) to control the vehicle tail gate to be opened.
8. A tailgate switch control method, implemented on the basis of the tailgate switch control system according to any of claims 1-3, characterized in that it comprises:
when the vehicle detects a key signal, controlling the projection lamp (3) to light a preset area and awakening the millimeter wave radar sensor (2);
when the millimeter wave radar sensor (2) detects that an object performs kicking actions in a preset area, acquiring a point cloud track in the kicking action performing process of the object, wherein the point cloud track is formed by point cloud data detected by the millimeter wave radar sensor (2), and the point cloud data is a corresponding three-dimensional coordinate point of the object in the moving process;
judging whether the point cloud track accords with a threshold characteristic of a third preset point cloud model or not based on the third preset point cloud model, wherein the threshold characteristic is a three-dimensional space corresponding to the third preset point cloud model;
if the point cloud track does not accord with the threshold characteristic of a third preset point cloud model, no operation is needed; if the point cloud track meets the threshold characteristic of a third preset point cloud model, acquiring the state of a tail gate of the vehicle;
when the vehicle tail gate is in an open state, controlling the vehicle tail gate to be closed; and when the vehicle tail gate is in a closed state, controlling the vehicle tail gate to be opened.
9. The tailgate switch control method according to claim 8, wherein determining whether the point cloud trajectory matches a threshold feature of a third preset point cloud model based on the third preset point cloud model comprises:
acquiring threshold characteristics of a third preset point cloud model and point cloud data corresponding to the point cloud track;
when more than or equal to 80% of the point cloud data in the point cloud track is located in the threshold characteristic, judging that the point cloud track conforms to the threshold characteristic of a third preset point cloud model;
and when less than 80% of the point cloud data in the point cloud track is located in the threshold characteristic, judging that the point cloud track does not conform to the threshold characteristic of a third preset point cloud model.
10. The tailgate switch control method according to claim 8, characterized in that when the vehicle tailgate is in an open state, controlling the vehicle tailgate to close; when the vehicle tail-gate is in the closed condition, control the vehicle tail-gate and open, include:
when the vehicle tail gate is in an open state, the central controller (1) is controlled to send a closing signal to the tail gate controller (4) to control the vehicle tail gate to be closed;
when the vehicle tail gate is in a closed state, the central controller (1) is controlled to send an opening signal to the tail gate controller (4) to control the vehicle tail gate to be opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210140643.0A CN114740766A (en) | 2022-02-16 | 2022-02-16 | Tail gate opening and closing control system and method |
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| CN202210140643.0A CN114740766A (en) | 2022-02-16 | 2022-02-16 | Tail gate opening and closing control system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419345A (en) * | 2022-10-08 | 2022-12-02 | 奇瑞汽车股份有限公司 | Tail gate control method and vehicle |
| CN115726660A (en) * | 2022-10-31 | 2023-03-03 | 重庆长安汽车股份有限公司 | Vehicle tail gate control method and system and vehicle |
| CN116607864A (en) * | 2023-05-25 | 2023-08-18 | 广州优创电子有限公司 | Contact-free tail gate control system |
-
2022
- 2022-02-16 CN CN202210140643.0A patent/CN114740766A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419345A (en) * | 2022-10-08 | 2022-12-02 | 奇瑞汽车股份有限公司 | Tail gate control method and vehicle |
| CN115419345B (en) * | 2022-10-08 | 2024-06-07 | 奇瑞汽车股份有限公司 | Tail gate control method and vehicle |
| CN115726660A (en) * | 2022-10-31 | 2023-03-03 | 重庆长安汽车股份有限公司 | Vehicle tail gate control method and system and vehicle |
| CN116607864A (en) * | 2023-05-25 | 2023-08-18 | 广州优创电子有限公司 | Contact-free tail gate control system |
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