CN110593712A - Opening method of electric tail gate of vehicle - Google Patents
Opening method of electric tail gate of vehicle Download PDFInfo
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- CN110593712A CN110593712A CN201910924906.5A CN201910924906A CN110593712A CN 110593712 A CN110593712 A CN 110593712A CN 201910924906 A CN201910924906 A CN 201910924906A CN 110593712 A CN110593712 A CN 110593712A
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- tail gate
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 208000035139 partial with pericentral spikes epilepsy Diseases 0.000 claims abstract description 46
- 230000008859 change Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 4
- 230000006698 induction Effects 0.000 abstract description 11
- 238000005457 optimization Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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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
- E05F15/76—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects responsive to devices carried by persons or objects, e.g. magnets or reflectors
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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
- E05F15/77—Power-operated mechanisms for wings with automatic actuation using wireless control
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/531—Doors
- E05Y2900/532—Back doors or end doors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses an opening method of an electric tail gate, which comprises the following steps: step 1: the PEPS module drives a low-frequency antenna installed in a rear bumper of the vehicle to periodically generate a low-frequency signal for searching for a key, and whether a legal key exists around the vehicle is detected; step 2: acquiring the real-time distance between a legal key and a vehicle in real time; and step 3: judging whether the legal key is in a motion state close to the vehicle or not according to the change of the real-time distance; and 4, step 4: when the key is in a motion state close to the vehicle and the duration time that the real-time distance between the vehicle and the legal key is detected to be smaller than the set distance reaches a preset time threshold value, the tail gate opening step is started, and the PEPS module controls the electric tail gate system to open the tail gate. The invention can realize the induction opening of the electric tail gate based on the existing keyless system hardware and the optimization of vehicle hardware through a software control strategy, has no increase of hardware cost, realizes low cost and can improve the vehicle competitiveness.
Description
Technical Field
The invention relates to the field of vehicle door opening control, in particular to a method for opening an electric tail gate in an induction mode based on a vehicle key.
Background
The automobile keyless system is used as a configuration for providing comfortable use experience for users, and the current configuration rate gradually reaches the standard configuration condition. When a customer carries a key and operates a button or an induction area on a handle, after the actions are detected by the PEPS module, the PEPS module drives a low-frequency antenna on the vehicle to generate a wireless signal to search the key, verifies the legality of an obtained key RF signal, and then sends a command to the BCM module to lock and unlock the whole vehicle.
In recent years, the share of medium and large SUVs in the domestic automobile market is getting larger, and as the backup door of the SUV is larger and is also very heavy, the opening and closing of the back door are very inconvenient, especially for female users. In order to facilitate the opening of the back door, the mounting of a power tailgate system (PLG) and a kick sensor (kick sensor) is also one of the arrangements in the fashion trend. When a user holds heavy objects with two hands, the user only needs to use feet to aim at the position of the sensor to perform kicking action, so that the tail gate can be opened, and the tail gate is very convenient, fast and practical. However, the kick sensor increases the cost of the whole vehicle and reduces the competitiveness of the vehicle. Meanwhile, the kick sensor has the problem of certain induction failure in certain scenes, so that the use is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an opening method of an electric tail gate, which is used for realizing the automatic induction type opening of the electric tail gate.
In order to achieve the purpose, the invention adopts the technical scheme that: a method for opening a power tail gate comprises the following steps:
step 1: the PEPS module drives a low-frequency antenna installed in a rear bumper of the vehicle to periodically generate a low-frequency signal for searching for a key, and whether a legal key exists around the vehicle is detected;
step 2: acquiring the real-time distance between a legal key and a vehicle in real time;
and step 3: judging whether the legal key is in a motion state close to the vehicle or not according to the change of the real-time distance;
and 4, step 4: when the key is in a motion state close to the vehicle and the duration time that the real-time distance between the vehicle and the legal key is detected to be smaller than the set distance reaches a preset time threshold value, the tail gate opening step is started, and the PEPS module controls the electric tail gate system to open the tail gate.
In step 4, after entering the tail gate opening step, the PEPS wakes up the CAN network of the vehicle and sends a signal to the BCM to enable the BCM to send a door opening early warning signal, and detects the distance change between the legal key and the vehicle in real time, and when the door opening early warning signal is sent and the distance between the legal key and the vehicle is increased within the set time, the PEPS module sends a tail gate opening instruction to the PLG module through the CAN bus.
The PEPS module sends a tail door opening instruction to the PLG module and sends an instruction to the BCM module to shield the vehicle body anti-theft alarm when the tail door is opened.
In step 4, the BCM sends out a door opening early warning signal by controlling the car lamp and/or the buzzer.
The car light is left indicator and/or right indicator, and the BCM module controls the indicator to flicker.
In step 1, the PEPS first drives the low-frequency antenna to send a short message to search for a key, and if a legal key is found, the PEPS module drives the detection antenna to send a complete wireless signal for verifying the identity of the key to verify whether the key is a legal key.
When the key enters the communication range of the low-frequency antenna, the key detects the intensity of a periodic signal generated by the current low-frequency antenna and feeds the signal intensity back to the PEPS module, and the PEPS module judges the real-time distance between the key and the vehicle according to the fed-back signal intensity signal.
The invention has the advantages that: based on the existing keyless system hardware and the optimization of vehicle hardware through a software control strategy, the electric tail gate can be opened in an induction mode, the hardware cost is not increased, the implementation cost is low, and the vehicle competitiveness can be improved; the opening control logic of the electric tail gate is reasonable, the induction type opening of the electric tail gate can be accurately realized by opening, both hands can be liberated, and the use is more convenient; during the tail-gate that sets up opens control logic, need retreat one step when opening early warning signal and just can open the tail-gate, further can accomplish and prevent the maloperation function, touch the user when avoiding the tail-gate to open simultaneously, it is more reasonable.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a hardware schematic of the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
As shown in fig. 1, the hardware schematic diagram of the electric tailgate opening method according to the present application includes a PEPS module, a smart key, a vehicle CAN network bus disposed on a low frequency antenna, an RF antenna, a PLG, a BCM, and a vehicle for module communication. The opening method of the electric tail gate based on the hardware comprises the following steps:
step 1: the PEPS module drives a low-frequency antenna installed in a rear bumper of the vehicle to periodically generate a low-frequency signal for searching for a key, and whether a legal key exists around the vehicle is detected; the PEPS drives the low-frequency antenna to send a short message to search for the key, and if the legal key is found, the PEPS module drives the detection antenna to send a complete wireless signal for verifying the identity of the key so as to verify whether the key is the legal key.
Step 2: acquiring the real-time distance between a legal key and the tail of the vehicle in real time; when the key enters the communication range of the low-frequency antenna, the key detects the intensity of a periodic signal generated by the current low-frequency antenna and feeds the signal intensity back to the PEPS module, and the PEPS module judges the real-time distance between the key and the tail of the vehicle according to the fed signal intensity signal.
And step 3: judging whether the legal key is in a motion state close to the vehicle or not according to the change of the real-time distance; and analyzing the change trend of the real-time distance, and judging the motion state of the approaching vehicle if the distance is reduced, or else, judging the motion state of the approaching vehicle not.
And 4, step 4: when the key is in a motion state close to the vehicle and the duration time that the real-time distance between the tail of the vehicle and the legal key is detected to be smaller than the set distance S reaches a preset time threshold t, the tail door opening step is started, and the PEPS module controls the electric tail door system to open the tail door. The set distance S and the preset time threshold T can be used for verifying the optimal distance and the optimal duration T according to vehicle tests, when a user brings a key close to the tail of the vehicle, the distance is reduced in real time, when the distance is smaller than the set distance S, the duration is calculated, and when the duration reaches the time threshold T, the step of opening the tail gate is carried out.
In step 4, after entering the tail gate opening step, the PEPS may firstly wake up the CAN network of the vehicle and send a signal to the BCM to make the BCM send out a door opening early warning signal, and detect a distance change between a legal key and the vehicle in real time, where the door opening early warning information includes signals of the vehicle and the like and an alarm signal. After the door opening early warning information is sent out, when the distance between a legal key and the vehicle is increased within the set time T1, the PEPS module sends a tail door opening instruction to the PLG module through the CAN bus. The PEPS module sends a tail gate opening instruction to the PLG module and sends an instruction to the BCM module to shield the vehicle body anti-theft alarm when the tail gate is opened. After entering the opening step, the back door is about to be opened at the moment, a signal is given to remind the user, the user retreats one step after reminding, namely the distance between the key and the tail part of the vehicle is increased, the user knows the door opening signal at the moment, the vehicle door can be opened at the moment, and the PEPS outputs a signal to the PLG to control the back door to be opened. If the distance is unchanged or reduced after the light early warning signal is sent, the user does not go backwards at the moment, which indicates that the user does not prepare to open the vehicle door (and the user cannot open the vehicle door at the tail of the vehicle because the user may collide with the user).
The BCM sends out door opening early warning signals by controlling the car lamps and/or the buzzer. The car light is left indicator and/or right indicator, and BCM module control indicator scintillation sends alarm flashing signal, and BCM control bee calling organ sends alarm signal and gives the warning.
The intelligent search and key location technology of the sufficient automobile keyless system realizes the function of opening the electric tail gate by induction under the condition of not increasing the cost. The specific implementation mode is as follows: the PEPS module drives a low-frequency antenna installed at the tail of the vehicle to periodically generate a low-frequency signal for searching for the key, and detects whether a legal key appears around the vehicle. In order to reduce the static current of the vehicle, the PEPS module firstly drives the low-frequency antenna to send a short message to search for a legal key, and if the legal key is found, the PEPS module drives the detection antenna to send a complete wireless signal for verifying the identity of the key.
And a low-frequency antenna installed in the rear bumper of the vehicle and periodically driven by the PEPS module to generate a key searching signal. A user carries an intelligent key to lean against a vehicle from the direction of a trunk, the PEPS module wakes up a CAN network of the vehicle when detecting that a legal key and the vehicle maintain a certain distance within a period of time through a key positioning technology, and sends a network signal to the BCM to control the left and right steering lamps of the vehicle to flicker. At this time, the user, after observing the indication of the vehicle light, retreats for a certain distance within a predetermined time. The PEPS module is positioned to the position that the distance between the intelligent key and the vehicle is changed, the fact that the user wants to open the trunk is evaluated through a software strategy, at the moment, the PEPS module sends a tail door opening instruction to the PLG module, and the PLG module drives the electric tail door to be opened.
And a low-frequency antenna installed in a rear bumper of the vehicle and used for periodically detecting keys approaching from the rear of the vehicle. When a user carries the intelligent key to lean into the vehicle from the direction of the trunk, the key can detect the intensity of the periodic signal generated by the low-frequency antenna at the current position and feed the signal intensity back to the PEPS module through high frequency. The PEPS module can determine the real-time distance of the key from the vehicle from this intensity value.
When the PEPS module detects that a legal key and the vehicle maintain a certain distance within a period of time, the PEPS module wakes up a CAN network of the vehicle and sends a network signal to the BCM to control the left and right steering lamps of the vehicle to flash and the buzzer to sound, so that a user CAN sense that the vehicle enters a tail gate opening area in a visual and auditory mode.
At the moment, the user retreats for a certain distance within a specified time, and the PEPS module receives the signal intensity fed back by the key and performs side summation, so that the distance between the intelligent key and the vehicle is positioned to be changed. The software strategy evaluates that a user executes the action of opening the trunk by induction, at the moment, the PEPS sends an instruction to the BCM through the CAN bus to shield the automobile body anti-theft alarm when the tail door is opened, and simultaneously sends a tail door opening instruction to the PLG module, and the PLG module drives the electric tail door to open.
The scheme has the advantages that:
1. the keyless system based on the vehicle realizes the function of opening the electric tail gate by induction through software strategy optimization, does not increase hardware cost, and improves vehicle competitiveness;
2. the electric tail gate is opened in an induction manner by positioning the key position, so that both hands of a user are liberated, and the electric tail gate is more convenient to use;
3. when the system works, the user needs to retreat one step in a specific scene, the function of preventing misoperation can be achieved, meanwhile, the user is prevented from being touched when the tail gate is opened, and the system is more reasonable.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (7)
1. A method for opening a vehicle electric tail gate is characterized in that: the method comprises the following steps:
step 1: the PEPS module drives a low-frequency antenna installed in a rear bumper of the vehicle to periodically generate a low-frequency signal for searching for a key, and whether a legal key exists around the vehicle is detected;
step 2: acquiring the real-time distance between a legal key and a vehicle in real time;
and step 3: judging whether the legal key is in a motion state close to the vehicle or not according to the change of the real-time distance;
and 4, step 4: when the key is in a motion state close to the vehicle and the duration time that the real-time distance between the vehicle and the legal key is detected to be smaller than the set distance reaches a preset time threshold value, the tail gate opening step is started, and the PEPS module controls the electric tail gate system to open the tail gate.
2. A method of opening a power tailgate for a vehicle, as claimed in claim 1, wherein: in step 4, after entering the tail gate opening step, the PEPS wakes up the CAN network of the vehicle and sends a signal to the BCM to enable the BCM to send a door opening early warning signal, and detects the distance change between the legal key and the vehicle in real time, and when the door opening early warning signal is sent and the distance between the legal key and the vehicle is increased within the set time, the PEPS module sends a tail gate opening instruction to the PLG module through the CAN bus.
3. A method of opening a power tailgate for a vehicle, as claimed in claim 2, characterized in that: the PEPS module sends a tail door opening instruction to the PLG module and sends an instruction to the BCM module to shield the vehicle body anti-theft alarm when the tail door is opened.
4. A method of opening a power tailgate for a vehicle, as claimed in claim 2, characterized in that: in step 4, the BCM sends out a door opening early warning signal by controlling the car lamp and/or the buzzer.
5. The opening method of a power tailgate for a vehicle, according to claim 4, characterized in that: the car light is left indicator and/or right indicator, and the BCM module controls the indicator to flicker.
6. A method of opening a power tailgate for a vehicle, according to claim 1 or 2, characterized in that: in step 1, the PEPS first drives the low-frequency antenna to send a short message to search for a key, and if the key is found, the PEPS module drives the detection antenna to send a complete wireless signal for verifying the identity of the key to verify whether the key is a legal key.
7. A method of opening a power tailgate for a vehicle, according to claim 1 or 2, characterized in that: when the key enters the communication range of the low-frequency antenna, the key detects the intensity of a periodic signal generated by the current low-frequency antenna and feeds the signal intensity back to the PEPS module, and the PEPS module judges the real-time distance between the key and the vehicle according to the fed-back signal intensity signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910924906.5A CN110593712A (en) | 2019-09-27 | 2019-09-27 | Opening method of electric tail gate of vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910924906.5A CN110593712A (en) | 2019-09-27 | 2019-09-27 | Opening method of electric tail gate of vehicle |
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| CN110593712A true CN110593712A (en) | 2019-12-20 |
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| CN201910924906.5A Pending CN110593712A (en) | 2019-09-27 | 2019-09-27 | Opening method of electric tail gate of vehicle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111629353A (en) * | 2020-07-29 | 2020-09-04 | 广州汽车集团股份有限公司 | Method and system for communication between vehicle and NFC mobile device and external NFC module |
| CN111894386A (en) * | 2020-07-29 | 2020-11-06 | 广州汽车集团股份有限公司 | Automatic control method for car window |
| CN112412241A (en) * | 2020-11-09 | 2021-02-26 | 广州小鹏汽车科技有限公司 | Control method, control device, vehicle, and storage medium |
| CN112644424A (en) * | 2020-12-31 | 2021-04-13 | 东风汽车集团有限公司 | Delayed closing control method and device for electric back door |
| CN113090159A (en) * | 2021-04-29 | 2021-07-09 | 重庆长安汽车股份有限公司 | Automobile electric tail gate opening control method and device and storage medium |
| CN113515069A (en) * | 2021-07-06 | 2021-10-19 | 玄微子工业技术(深圳)有限公司 | Kick control system based on recognizer |
| CN113949420A (en) * | 2020-06-30 | 2022-01-18 | 华为技术有限公司 | Vehicle control method, electronic equipment and system |
| CN114633720A (en) * | 2020-12-15 | 2022-06-17 | 博泰车联网科技(上海)股份有限公司 | Method and device for intelligently opening trunk, storage medium and vehicle |
| CN115139973A (en) * | 2022-06-28 | 2022-10-04 | 岚图汽车科技有限公司 | Tail gate control method and system based on millimeter waves, electronic device and storage medium |
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| CN111629353A (en) * | 2020-07-29 | 2020-09-04 | 广州汽车集团股份有限公司 | Method and system for communication between vehicle and NFC mobile device and external NFC module |
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| CN112644424A (en) * | 2020-12-31 | 2021-04-13 | 东风汽车集团有限公司 | Delayed closing control method and device for electric back door |
| CN113090159A (en) * | 2021-04-29 | 2021-07-09 | 重庆长安汽车股份有限公司 | Automobile electric tail gate opening control method and device and storage medium |
| CN113515069A (en) * | 2021-07-06 | 2021-10-19 | 玄微子工业技术(深圳)有限公司 | Kick control system based on recognizer |
| CN115139973A (en) * | 2022-06-28 | 2022-10-04 | 岚图汽车科技有限公司 | Tail gate control method and system based on millimeter waves, electronic device and storage medium |
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Application publication date: 20191220 |
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| RJ01 | Rejection of invention patent application after publication |