CN113090159A - Automobile electric tail gate opening control method and device and storage medium - Google Patents
Automobile electric tail gate opening control method and device and storage medium Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
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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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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
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Abstract
The invention provides a method for controlling the opening of an electric tail gate of a vehicle. If the barrier is out of the safe distance, when the car owner carries the key to enter the tail gate opening activation area, the tail gate is allowed to be automatically opened; if the obstacle is within the safe distance, the tail gate welcome function is cancelled. According to the method, the functions of 'vehicle owner reservation' and 'radar detection' are added to the existing control method, so that the problems that a vehicle owner carelessly triggers the tail gate opening function and cannot detect the barrier when the tail gate is opened are solved.
Description
Technical Field
The invention relates to a control technology of an automobile electric tailgate, in particular to a control method of an automobile electric tailgate.
Background
In the automobile industry with increasingly intense competition, the market has higher requirements on the intellectualization of automobiles, but for a host computer factory, the intellectualization degree of the automobiles is always in direct proportion to the cost of the whole automobiles, so that the existing ECU of the automobiles is utilized to carry out functional innovation, and a plurality of ECUs are mutually cooperated to realize certain functions which can be realized only by carrying specific parts, thereby becoming the target pursued by each host computer factory.
The opening mode of the current automobile electric tail gate mainly comprises the following modes: firstly, a trunk button is opened; secondly, key opening of the intelligent key; thirdly, the kick sensor is used for induction starting; fourthly, noninductive opening: and judging the position of the key to be automatically opened by utilizing the PEPS system.
The above opening modes (i) and (ii) belong to the conventional opening mode, and are not described herein. Mode third need be for the car installs the foot and play the sensor additional to the user will sweep under the fender thick stick with the foot when using, the foot of this mode plays the sensor and has increased the cost of whole car, has reduced the price competitiveness of vehicle, is not the first-selected of host computer factory. The PEPS is used for triggering the periodic scanning of the key position of the low-frequency antenna, and when the key position approaches a certain threshold value, the PEPS invokes the BCM to send a tailgate opening instruction to the electric tailgate and enables the electric tailgate to be automatically opened, for example, the opening method of the electric tailgate of the vehicle disclosed in patent document CN201910924906 is adopted. The method has the advantages that: firstly, the automatic opening of the tail gate is realized by utilizing the existing controller of the whole vehicle without adding extra cost; and secondly, the car owner does not need to do any action in the whole process of opening the tail gate, and only needs to approach the car to the automatic opening area of the tail gate, so that more convenient and intelligent experience is brought to the car owner. The disadvantages are that: firstly, the false opening probability is high, in the scheme, because the vehicle always searches for the key after the function is opened, when the vehicle owner has a rest right near the tail gate, the problem of false opening exists, and the false opening cannot be avoided; secondly, no obstacle detection is carried out, and the opening risk cannot be controlled: peripheral obstacles are not detected before the tail gate is opened, and the risk of collision with the nearby obstacles in the opening process of the tail gate may exist.
Disclosure of Invention
The invention provides a novel method and a novel device for controlling the opening of an electric tail gate of a vehicle and a storage medium, and aims to solve the problems of false opening and incapability of detecting an obstacle in non-inductive opening.
The technical scheme of the invention is as follows:
the invention provides a method for controlling the opening of an electric tail gate of a vehicle, which is characterized in that a vehicle-mounted internet technology is used for enabling a vehicle owner to reserve an automatic tail gate opening function (tail gate welcome function) for the vehicle through a mobile phone APP, and after reservation, the vehicle immediately activates a reversing radar to carry out distance detection on a barrier near the tail gate. If the barrier is out of the safe distance, when the car owner carries the key to enter the tail gate opening activation area, the tail gate is allowed to be automatically opened; if the obstacle is within the safe distance, the tail gate welcome function is cancelled. The method adds two steps of 'vehicle owner reservation' and 'radar detection' in the existing control method, thus solving the problems that the vehicle owner carelessly triggers the tail gate opening function and cannot detect the barrier when opening.
The invention discloses a vehicle electric tail gate opening control method, which comprises the following steps:
step 1, a vehicle body controller unit responds to a vehicle reserved tail gate automatic opening instruction, and activates a reversing radar to detect the safe distance of an obstacle near a tail gate.
Step 2, if the barrier is not detected in the safe distance, the vehicle body controller unit enters a 'tail gate welcome' function activation mode; if an obstacle is detected within a safe distance, the tailgate reservation is cancelled.
And step 3, after entering a 'tail gate welcome' function activation mode, allowing the tail gate to be automatically opened when detecting that the intelligent key signal enters a tail gate opening activation area.
Further, the step 1 comprises the steps of,
step 1.1: the 'tail gate welcome' function of the mobile phone APP unit is started.
Step 1.2: the background cloud server unit receives a 'backdoor welcome' opening control instruction sent by the mobile phone APP unit.
Step 1.3: and the cloud server unit issues a tail gate welcome opening instruction to a vehicle-mounted T-BOX unit of the target vehicle.
Step 1.4: the vehicle-mounted T-BOX unit transmits a 'tail gate welcome' opening instruction to the vehicle body controller unit, namely a vehicle booking tail gate automatic opening instruction.
Step 1.5: and the vehicle body controller unit activates the vehicle tail reversing radar unit to detect the safe distance of the obstacle.
Further, the step 3 includes, in the step of,
and 3.1, after entering a 'tail gate welcome' function activation mode, judging the key distance by the vehicle body controller unit, and driving the PEPS module to enter a 'key' query mode.
And 3.2, the PEPS module drives the low-frequency antenna to periodically search for the low-frequency signal of the intelligent key, after the intelligent key receives the low-frequency signal, the low-frequency field intensity signal of the space where the intelligent key is located is fed back to the PEPS module in a high-frequency signal mode, and the PEPS module checks whether a legal intelligent key exists around the intelligent key according to the signal.
And 3.3, the PEPS detects the distance between the legal key and the vehicle in real time, and judges whether the legal key is in a motion state close to the vehicle according to the distance numerical value.
And 3.4, judging the opening condition of the tail gate, and entering an electric tail gate opening mode when the condition is met.
And 3.4, the PEPS module sends a tail gate opening instruction to an electric tail gate controller (PLG).
And 3.5, the electric tail gate controller (PLG) receives a tail gate opening instruction of the PEPS and drives the tail gate to be automatically opened.
The invention also provides a device for controlling the opening of the electric tail gate of the automobile, which comprises a memory and a processor, wherein the memory is stored with instructions, and the instructions are used for enabling the processor to execute the method for controlling the opening of the electric tail gate of the automobile.
The invention also provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions for enabling a machine to execute the automobile electric tail gate opening control method.
The method has the advantages that in the whole function implementation process, a vehicle owner is required to serve as an initiator of the function, and if the vehicle owner is not actively activated, the trunk cannot be opened even if the vehicle detects that a legal key is in a tail gate area, so that the problem of false triggering of the welcome tail gate is solved. In addition, before the tail gate is opened, the distance detection of the reversing radar to the barrier is called, only when the distance is safe, the trunk is allowed to be opened, and the safety of opening the trunk without sensing is improved by a large step. In addition, the control method enables a vehicle owner to activate the trunk to open the electric trunk of the vehicle without following the traditional mode of using a key, a trunk button or a kick (the vehicle with a kick sensor) when the vehicle owner opens the electric trunk of the vehicle, and directly adopts a mode of carrying the key to be close to the vehicle to a certain distance and directly opening the trunk after the vehicle detects the key.
The parts used by the invention are all based on the existing parts of the whole automobile, only logical development is needed through software, hardware cost is not increased, functions are enriched, and the competitiveness of the automobile is enhanced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a system architecture diagram of the present invention;
FIG. 2 is a functional flow diagram of the present invention;
fig. 3 is a schematic view of the entire vehicle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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.
The invention relates to a vehicle body control system, a CAN bus system, a LIN bus system and a vehicle networking system.
A vehicle body control system: the vehicle body control system comprises a vehicle Body Controller (BCM), a keyless controller (PEPS), a low-frequency antenna, a high-frequency receiver and an intelligent key, realizes a vehicle body control function by exchanging signals with a vehicle body bus system and an internet service system, and has common functions of controlling a power window, a power rearview mirror, a headlamp, a steering lamp, an anti-theft locking system, a central control lock, a defrosting device and the like.
The automobile bus system: the automobile bus system comprises a Controller Area Network (CAN) bus and a Local Interconnect Network (LIN) bus, but is not limited to the CAN bus, the CAN bus and the LIN bus, and the system is widely applied to an automobile electric control system, meets a large amount of information data among vehicle controllers, reduces wiring harnesses and reduces the vehicle cost.
The car networking system: the vehicle networking system is characterized in that vehicle-mounted terminal equipment is arranged on a vehicle to realize the collection, storage and transmission of all working conditions, static and dynamic information of the vehicle. The car networking system generally has a real-time live-action function, and human-car interaction is realized by utilizing a mobile network.
With reference to fig. 1 and 2, in an embodiment, the opening control of the electric tailgate of the vehicle may be implemented by:
step 1, a vehicle body controller unit responds to a vehicle reserved tail gate automatic opening instruction, and activates a reversing radar to detect the safe distance of an obstacle near a tail gate.
Step 1.1, the car owner opens the APP in the mobile phone terminal, and clicks the 'tail gate welcome' button to start the 'tail gate welcome' function.
And step 1.2, at the moment, the mobile phone end establishes communication with the cloud server, and the mobile phone end carries 'tail gate welcome' function opening instruction information by using the 4G signal and transmits an application to the cloud server.
And step 1.3, after receiving the application of opening the tail gate welcome function, the cloud server retrieves the vehicle bound in the information, immediately sends a tail gate welcome opening instruction to the T-BOX of the specified vehicle, and completes the transfer of the instruction signal.
Step 1.4, after receiving a 'tail gate welcome' opening instruction, the T-BOX sends the 'tail gate welcome' opening instruction to a vehicle body controller unit through a CAN bus;
step 1.5: after receiving a 'rear door welcome' opening instruction, a vehicle Body Controller (BCM) activates all reversing radars at the tail of the vehicle to send ultrasonic waves to detect the safe distance of the barrier,
and 2, if the obstacle is not detected within the safe distance and the state continues for 3S, the vehicle body controller unit enters a 'tail gate welcome' function activation mode.
If the reversing radar judges that the obstacle exists in the safe distance, the vehicle body controller sends an 'appointment failure' instruction to the T-BOX, the T-BOX specially delivers the message to the cloud server, the cloud server transmits the message to the mobile phone APP, and the mobile phone APP prompts the vehicle owner that the obstacle is detected and the back tail gate cannot be opened.
And 3, after entering a 'tail gate welcome' function activation mode, when detecting that an intelligent key signal enters a tail gate opening activation area, namely the distance between the key and the electric tail gate unit is consistent with the opening of the electric tail gate unit, allowing the tail gate to be automatically opened.
And 3.1, after the vehicle body controller starts the tail gate welcome function, driving the PEPS module to enter a key query mode.
The key inquiry function aims to enable the vehicle body controller unit to accurately identify the space distance between the intelligent key and the whole vehicle, and the function coordinates the vehicle body controller, the PEPS module, the radio frequency receiver and the low-frequency antenna, and the intelligent key calculates the space position of the key through a high-frequency radio frequency signal and a low-frequency signal.
And step 9: when the intelligent key enters the low-frequency signal field and is triggered by the low-frequency signal,
and 3.2, the PEPS module drives a low-frequency antenna installed on the rear bumper to periodically distribute low-frequency signals for searching for the intelligent key, after the intelligent key receives the low-frequency signals, the low-frequency field intensity signals of the space where the intelligent key is located are fed back to the PEPS module in a high-frequency signal mode, the low-frequency field intensity values of the field domain where the intelligent key is located are sent to the PEPS module, and the PEPS module checks whether legal intelligent keys exist around the PEPS module according to the signals.
And 3.3, the PEPS detects the distance between the legal key and the vehicle in real time, and judges whether the legal key is in a motion state close to the vehicle according to the distance numerical value.
Specifically, the PEPS module calculates the spatial position of the smart key (the distance and direction between the smart key and the entire vehicle) by analyzing the low-frequency field intensity value transmitted from the smart key unit.
The PEPS detects the space positions of the intelligent key and the vehicle in real time, and transmits the information to the vehicle body controller unit for logic processing.
Step 3.4, the vehicle body controller module unit judges the tail gate opening condition according to the received low-frequency field intensity and the time length of the detected intelligent key, and when the PEPS detects that the following conditions are simultaneously met, an electric tail gate opening program is started:
firstly, detecting that a legal key is in a moving state approaching a vehicle (the space distance between the vehicle and the key is gradually reduced);
detecting that a legal key enters a specified tail gate opening area;
and thirdly, continuously detecting that the time of the legal key staying in the tail gate opening area is greater than a set threshold value.
And 3.5, the PEPS module starts the mode of the electric tail gate, and sends a command of starting the tail gate to an electric tail gate controller (PLG) through a LIN bus.
When the PEPS enters the tail gate opening mode, a command of entering the tail gate opening mode is sent to the BCM through the CAN bus, and the BCM drives the steering lamp, the position lamp and the buzzer to work to prompt a vehicle owner and a passing vehicle.
And 3.6, the electric tail gate controller (PLG) receives a tail gate opening instruction of the PEPS and drives the tail gate to be automatically opened.
And 3.7, after the automobile body controller unit enters a 'tail gate welcome' function activation mode, timing the function starting time, if the trunk is not started after the set time T (the host factory is set) is exceeded, stopping the function, and prompting the automobile owner that the function is overtime and automatically cancelled through the mobile phone APP.
Referring to fig. 3, in the entire vehicle implementing the control method, the region D is a welcome tail door opening region.
Accordingly, a further embodiment of the present invention also provides a machine-readable storage medium having stored thereon instructions for enabling a machine to execute the above-described vehicle power tailgate opening control method. The machine-readable storage medium may be, for example, a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and various media capable of storing program codes.
Further, an embodiment of the present invention also provides a vehicle electric tailgate opening control device, which may include a memory and a processor, where the memory may store instructions, and the instructions enable the processor to execute the vehicle electric tailgate opening control method according to the above embodiment.
The processor may be a Central Processing Unit (CPU), but may also be other general purpose processors, digital signal processors (dsps), application specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
The memory may be used to store the computer program instructions, and the processor may implement the various functions of the fuel cell electric vehicle cruising range estimation apparatus by operating or executing the computer program instructions stored in the memory, and calling the data stored in the memory. The memory may include high speed random access memory and may also include non-volatile memory such as a hard disk, a memory, a plug-in hard disk, a Smart Memory Card (SMC), a Secure Digital (SD) card, a flash memory card, at least one magnetic disk storage device, a flash memory device, or other volatile solid state storage device.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
Claims (9)
1. A method for controlling the opening of an electric tail gate of an automobile is characterized in that: the method comprises the following steps:
step 1, a vehicle body controller unit responds to a vehicle reserved tail gate automatic opening instruction and activates a reversing radar to detect the safe distance of an obstacle near a tail gate;
step 2, if the barrier is not detected in the safe distance, the vehicle body controller unit enters a 'tail gate welcome' function activation mode; if the obstacle is detected within the safe distance, canceling the tail gate reservation;
and step 3, after entering a 'tail gate welcome' function activation mode, allowing the tail gate to be automatically opened when detecting that the intelligent key signal enters a tail gate opening activation area.
2. The opening control method of the electric tailgate of the automobile according to claim 1, characterized in that:
the step 1 comprises the steps of,
step 1.1: the 'tail gate welcome' function of the mobile phone APP unit is started;
step 1.2: the background cloud server unit receives a 'backdoor welcome' opening control instruction sent by the mobile phone APP unit;
step 1.3: the cloud server unit issues a tail gate welcome opening instruction to a vehicle-mounted T-BOX unit of a target vehicle;
step 1.4: the vehicle-mounted T-BOX unit transmits a tail gate welcome opening instruction, namely a vehicle appointment tail gate automatic opening instruction, to the vehicle body controller unit;
step 1.5: and the vehicle body controller unit activates the vehicle tail reversing radar unit to detect the safe distance of the obstacle.
3. The opening control method of the electric tailgate of the automobile according to claim 1, characterized in that:
the step 3 comprises the steps of,
step 3.1, after entering a 'tail gate welcome' function activation mode, a vehicle body controller unit judges the key distance and drives a PEPS module to enter a 'key' query mode;
step 3.2, the PEPS module drives the low-frequency antenna to periodically search for a low-frequency signal of the intelligent key, after the intelligent key receives the low-frequency signal, the low-frequency field intensity signal of the space where the intelligent key is located is fed back to the PEPS module in a high-frequency signal mode, and the PEPS module checks whether a legal intelligent key exists around the intelligent key according to the signal;
3.3, the PEPS detects the distance between the legal key and the vehicle in real time, and judges whether the legal key is in a motion state close to the vehicle according to the distance numerical value;
step 3.4, judging the tail gate opening condition, and entering an electric tail gate opening mode when the condition is met;
step 3.5, the PEPS module sends a tail gate opening instruction to an electric tail gate controller (PLG);
and 3.6, the electric tail gate controller (PLG) receives a tail gate opening instruction of the PEPS and drives the tail gate to be automatically opened.
4. The opening control method of the electric tailgate of the automobile according to claim 3, characterized in that: and 3.4, when the PEPS detects that the following conditions are simultaneously met, entering an electric tail gate opening mode:
detecting that a legal key is in a moving state approaching a vehicle;
detecting that a legal key enters a specified tail gate opening area;
and thirdly, continuously detecting that the time of the legal key staying in the tail gate opening area is greater than a set threshold value.
5. The opening control method of the electric tailgate of the automobile according to claim 1, 2, 3 or 4, characterized in that: in the step 2, if the reversing radar unit judges that an obstacle exists in the safe distance, the vehicle body controller unit sends an 'appointment failure' instruction to the T-BOX unit, the T-BOX unit specially delivers the instruction to the cloud server, the cloud server transmits the instruction to the mobile phone APP end, and the mobile phone APP sends a prompt to a vehicle owner.
6. The opening control method of the electric tailgate of the automobile according to claim 1, 2, 3 or 4, characterized in that: in step 3, after the automobile body controller unit enters a 'tail gate welcome' function activation mode, the time for opening the function is timed, if the trunk is not opened after the set time T is exceeded, the function is stopped, and a prompt is sent to an automobile owner through a mobile phone APP.
7. The opening control method of the electric tailgate of the automobile according to claim 3, characterized in that: in the step 3.4, after the PEPS enters the tail gate opening mode, a command of entering the tail gate opening mode is sent to the BCM through the CAN bus, and at the moment, the BCM drives the steering lamp, the position lamp and the buzzer to work to prompt the car owner and the passing vehicle.
8. An electric tailgate opening control device for an automobile, characterized in that the device comprises a memory and a processor, wherein the memory stores instructions for enabling the processor to execute the electric tailgate opening control method for an automobile according to any one of claims 1 to 7.
9. A machine-readable storage medium having stored thereon instructions for enabling a machine to execute the method for controlling opening of an electric tailgate of an automobile according to any one of claims 1 to 7.
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| CN114394064A (en) * | 2021-12-29 | 2022-04-26 | 同致电子科技（厦门）有限公司 | Ultrasonic radar tail gate control system |
| CN115257628A (en) * | 2022-07-20 | 2022-11-01 | 小米汽车科技有限公司 | Vehicle control method, device, storage medium, vehicle and chip |
| CN115419345A (en) * | 2022-10-08 | 2022-12-02 | 奇瑞汽车股份有限公司 | Tail gate control method and vehicle |
| CN116104388A (en) * | 2023-01-06 | 2023-05-12 | 东风柳州汽车有限公司 | Tail gate automatic control method, equipment, storage medium and device |
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Application publication date: 20210709 |