Vehicle electric door far-away locking method and system

Abstract

The invention provides a vehicle electric door far-away locking method and system.The vehicle electric door far-away locking method comprises the following steps that S1, when a first electric door of a vehicle is opened or closed, key positioning is conducted; s2, after each electrically operated gate is completely closed, whether the electrically operated gate is the last completely closed electrically operated gate or not is judged, and if the electrically operated gate is the last completely closed electrically operated gate, the next step is carried out; otherwise, judging whether the next completely closed electric door is the last completely closed electric door or not; and S3, carrying out key positioning again, and if the key signal cannot be positioned in the vehicle locking area, executing a remote locking function. Compared with the situation that in the prior art, key positioning is started only after the last door is completely closed, and the far-away locking function cannot be normally executed, even if the key cannot be positioned when the last electric door is closed, the far-away locking function can be normally executed, and automatic locking of the electric door is achieved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent vehicle control technology, and in particular to a vehicle electric door away locking method and system. Background Art

[0002] The keyless entry and start system is referred to as the PEPS (Passive Entry Passive Start) system, which consists of a controller, a radio frequency (RF) transmitter in the smart key, and a receiver on the car side. When the key is within the effective range, the owner pulls the door or presses the one-button start switch, and the corresponding module will send an interrupt signal to wake up the main controller and start the entire communication process. The whole process does not require the use of a key to open the door or start the engine. At present, the main components of the PEPS system are remote control keys, antennas, control modules (BCM), and one-button start switches. The core technologies involved include RFID recognition technology, encryption algorithms, and EMC technology.

[0003] In the PEPS system, the vehicle is locked when the key is detected entering away from the locking area, or when the key position disappears after the last door is closed.

[0004] For the current away-from-locking method, the locking area is about 3 meters away from the car, but some models currently take about 8 seconds to close the electric door. This means that when the electric door is fully closed, the user (the driver holding the key) may have walked out of the locking range, which in turn affects the normal use of the locking function away from the locking area, affecting the user's car safety and experience. Summary of the invention

[0005] Based on the above-mentioned problems existing in the prior art, the present invention aims to solve the technical problem that when the away-from-locking method in the prior art is used for vehicles that take a long time to close the electric door, the user may have walked out of the locking range when the electric door is fully closed, thereby affecting the normal use of the locking function away from the locking area.

[0006] The present invention provides a vehicle electric door away locking method, which comprises the following steps:

[0007] S1: When the first electric door of the vehicle is opened or closed, key positioning is performed;

[0008] S2: After each electric door is completely closed, determine whether the electric door is the last electric door to be completely closed. If it is the last electric door to be completely closed, proceed to the next step; otherwise, determine whether the next electric door to be completely closed is the last electric door to be completely closed.

[0009] S3: The key is located again. If the key signal cannot be located in the vehicle locking area, the away locking function is executed and the entire vehicle is automatically locked.

[0010] According to an embodiment of the present invention, determining in step S2 whether the fully closed electric door is the last fully closed electric door includes the following steps:

[0011] Determine whether there is an unclosed electric door after the electric door is completely closed, and whether the electric door is opened again within a preset time after the electric door is completely closed. If there is no unclosed electric door and no electric door is opened, it is determined that the electric door is the last electric door to be completely closed; otherwise, it is determined that the electric door is not the last electric door to be completely closed.

[0012] According to an embodiment of the present invention, the key positioning method in step S1 includes one-time positioning, continuous positioning or periodic positioning.

[0013] According to an embodiment of the present invention, the key positioning method in step S3 includes continuous positioning or periodic positioning.

[0014] According to an embodiment of the present invention, when the first electric door of the vehicle is opened or closed in step S1, key positioning is performed, including the following steps:

[0015] When the first electric door of the vehicle is opened or closed, the acquisition module installed on the electric door acquires an opening or closing signal, and the sending module installed on the electric door sends the acquired opening or closing signal to the vehicle body controller;

[0016] After receiving the opening or closing signal, the body controller sends an addressing instruction to the antenna, and the antenna sends the first LF data to the key based on the received addressing instruction;

[0017] The key sends first RF position data to the vehicle body controller based on the first LF data;

[0018] The body controller determines the key location based on the first RF location data.

[0019] According to an embodiment of the present invention, when the last electric door is completely closed in step S3, the key positioning is performed again, including the following steps:

[0020] When the last electric door of the vehicle is fully closed, the acquisition module installed on the electric door acquires a fully closed signal, and the sending module installed on the electric door sends the acquired fully closed signal to the vehicle body controller;

[0021] After receiving the full-close signal, the body controller sends an addressing command to the antenna, and the antenna sends the second LF data to the key based on the received addressing command;

[0022] The key sends second RF position data to the vehicle body controller based on the second LF data;

[0023] The body controller determines the key location based on the second RF location data.

[0024] The present invention also provides a vehicle electric door away locking system, which is used to implement the vehicle electric door away locking method, and comprises:

[0025] Body controller;

[0026] An acquisition module and a transmission module installed on the electric door and in communication connection, wherein the transmission module is in communication connection with the vehicle body controller;

[0027] an antenna, electrically connected to the vehicle body controller and communicatively connected to the key;

[0028] A lock actuator installed on the electric door, electrically connected to the body controller;

[0029] When the first electric door of the vehicle is opened or closed, the acquisition module acquires the opening or closing signal of the electric door and transmits it to the sending module; the sending module sends the received opening or closing signal to the body controller; the body controller sends an addressing instruction when receiving the opening or closing signal, the antenna sends first LF data to the key based on the addressing instruction, the key sends first RF position data to the body controller based on the first LF data, and the body controller determines the position of the key based on the first RF position data;

[0030] When the last electric door of the vehicle is fully closed, the acquisition module acquires the fully closed signal of the electric door and transmits it to the sending module; the sending module sends the received fully closed signal to the body controller; the body controller sends an addressing instruction when receiving the fully closed signal; the antenna sends a second LF data to the key based on the received addressing instruction, the key sends a second RF position data to the body controller based on the second LF data, and the body controller determines the position of the key based on the second RF position data; if the key signal cannot be located in the vehicle locking area, the away locking function is executed, and all the electric doors of the vehicle are automatically locked.

[0031] According to an embodiment of the present invention, the electric door is a sliding door, a gull-wing door or a scissor door.

[0032] According to an embodiment of the present invention, the acquisition module is a sliding door controller, a side sliding door controller or a scissor door controller.

[0033] The beneficial effects of the present invention are:

[0034] The present invention provides a vehicle electric door away locking method and system, which performs key positioning when the first electric door is opened or closed. Since the key positioning is performed when the first electric door begins to close, the key will definitely be positioned; the key positioning is performed again when the last electric door is completely closed. If the key signal cannot be positioned in the vehicle locking area, the triggering condition of the vehicle away locking is met, that is, the change from the key signal to the key signal is detected, and the vehicle can normally perform the away locking function; compared with the prior art that the key positioning is started after the last vehicle door is completely closed, there is a possibility that the key cannot be positioned after the electric door is completely closed due to the long closing time of the electric door, and thus the away locking function cannot be normally performed. Even if the key cannot be positioned when the last electric door is closed, the present invention can still perform the away locking function normally to achieve automatic locking of the electric door. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 It is a principle block diagram of a vehicle electric door away locking system provided by an embodiment of the present invention;

[0037] Figure 2 It is a flow chart of a method for locking a vehicle electric door away from the vehicle provided by an embodiment of the present invention;

[0038] Figure 3 It is a circuit connection principle diagram for implementing a vehicle electric door away locking method provided by an embodiment of the present invention;

[0039] Figure 4 Schematic diagram of the layout of the internal and external antennas of a vehicle in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The following descriptions of the embodiments refer to the attached drawings to illustrate specific embodiments in which the present invention can be implemented.

[0041] The present invention provides a vehicle electric door away locking system, the principle block diagram of which is as follows Figure 1 As shown, it includes a body controller, an acquisition module and a sending module installed on the electric door and communicatively connected, an antenna and a lock actuator installed on the electric door, wherein the sending module is communicatively connected to the body controller; the antenna is electrically connected to the body controller and communicatively connected to the key; the lock actuator on the electric door is electrically connected to the body controller.

[0042] Specifically, in the embodiment of the present invention, the electric door of the vehicle is any one of a sliding door, a gull-wing door or a scissor door, and correspondingly, the acquisition module is a sliding door controller (PSD), a side sliding door controller (POD) or a scissor door controller (PDM).

[0043] The present invention also provides a vehicle electric door away locking method, which is implemented based on the vehicle electric door away locking system. The steps of the vehicle electric door away locking method are as follows: Figure 2 As shown, the following steps are included:

[0044] S1: When the first electric door of the vehicle is opened or closed, key positioning is performed;

[0045] In this embodiment, the opening or closing of the first electric door of the vehicle includes two situations. The first situation is that the first electric door of the vehicle is opened, that is, the first electric door performs an opening operation; the second situation is that the first electric door of the vehicle is closed, that is, the first electric door performs a closing operation; wherein, the two situations may be parallel schemes. For one vehicle, one situation is selected and used according to actual needs; the two situations may also be cross-use schemes. For one vehicle, one situation is selected and used in one locking process, and different situations may be used in multiple locking processes, depending on actual needs.

[0046] Furthermore, the range of key positioning is the locking area of ​​the vehicle (including the outside and inside of the vehicle), and the key positioning method in step S1 can be any one of one-time positioning, continuous positioning or periodic positioning; the key positioning method in step S3 can be any one of continuous positioning or periodic positioning.

[0047] S2: After each electric door is completely closed, determine whether the electric door is the last electric door to be completely closed. If it is the last electric door to be completely closed, proceed to the next step; otherwise, determine whether the next electric door to be completely closed is the last electric door to be completely closed.

[0048] S3: Perform key positioning again. If the key signal cannot be located in the vehicle locking area, the away locking function is executed and all the electric doors of the vehicle are automatically locked.

[0049] It should be noted that this solution is specifically applicable to vehicles with all doors being electric doors, such as sports cars with two electric doors (sports cars have and only have two doors). In addition, the "first door" and "last door" mentioned in this embodiment specifically refer to the electric door that is opened or closed first and opened or closed last in the opening or closing sequence of the electric doors, rather than other sequences. In addition, since the remote locking technology is a prior art, the principle of the remote locking is not described in detail in this embodiment.

[0050] It is easy to understand that if step S1 is not executed, although the automatic locking of the vehicle's electric door can be achieved by only executing steps S2 and S3, there is a problem that when the driver does not carry the key but controls the vehicle through a smart terminal carried with him (such as a smart phone, on which a Bluetooth key capable of controlling the vehicle is installed), if the smart terminal is left in the car when the driver gets off the car, steps S2 and S3 will be automatically executed after the door is closed. Since the position signal of the key (the key is a special key equipped with the vehicle, not a Bluetooth key) cannot be detected in the vehicle locking area, the smart terminal may be mistakenly locked in the car, causing troubles in the use of the smart terminal Bluetooth key.

[0051] Specifically, when this solution is applied to a sports car with all doors being electric doors, the doors are locked according to the following process:

[0052] When the first electric door of the vehicle (the electric door is any electric door on the vehicle) is opened or closed, the key is located. Specifically, when the first electric door is opened or closed, the acquisition module installed on the electric door acquires the opening or closing signal of the electric door and transmits it to the sending module; the sending module sends the received opening or closing signal to the body controller; the body controller sends an addressing instruction when receiving the opening or closing signal, the antenna sends a first LF (low frequency) data to the key based on the addressing instruction, the key sends a first RF (Radio Frequency) position data to the body controller based on the first LF data, and the body controller determines the position of the key based on the first RF position data.

[0053] Thereafter, after each electric door (including the first electric door opened or closed) is completely closed, determine whether the electric door is the last electric door to be completely closed. If it is not the last electric door to be completely closed, determine whether the next electric door to be completely closed is the last electric door to be completely closed. If the electric door is the last electric door to be completely closed, then when the electric door is completely closed, perform key positioning again.

[0054] Specifically, when the last electric door is fully closed, the acquisition module installed on the electric door acquires the fully closed signal of the electric door and transmits it to the sending module; the sending module sends the received fully closed signal to the body controller; the body controller sends an addressing instruction again when receiving the fully closed signal; the antenna sends a second LF data to the key based on the received addressing instruction, and the key sends a second RF position data to the body controller based on the second LF data, and the body controller determines the position of the key based on the second RF position data. If the key signal cannot be located in the locking area of ​​the vehicle, it can be regarded that the key has moved away from the locking area of ​​the vehicle, and the away locking function is executed, and all electric doors of the vehicle are automatically locked.

[0055] Wherein, after each electric door is completely closed, determining whether the electric door is the last electric door to be completely closed comprises the following steps:

[0056] Determine whether there is an unclosed electric door (the electric door is open) after the electric door is completely closed, and whether the electric door is opened again within a preset time (for example, 0 to 3 minutes) after the electric door is completely closed. If there is no unclosed electric door and no electric door is opened, it is determined that the electric door is the last electric door to be completely closed; otherwise, it is determined that the electric door is not the last electric door to be completely closed.

[0057] like Figure 3 The figure shows a circuit connection principle diagram for realizing a vehicle electric door away locking method provided by an embodiment of the present invention. As a specific embodiment, the addressing instruction is a 125KHZ modulation signal, the first LF data and the second LF data are 125KHZ modulation signals, and the first RF position data and the second RF position data are 434MHZ demodulated signals containing key authentication information, power information, and RSSI value position information. The lock actuators on each electric door are respectively controlled by each electric door control module. Specifically, when the body controller determines the position of the key based on the second RF position data, if the key signal cannot be located in the vehicle locking area, the away locking function is executed, and the body controller sends a first control signal to the electric door control module on each electric door, and the electric door control module then sends a second control signal to the lock actuator on the electric door to control the lock actuator to perform the locking operation.

[0058] like Figure 4 The figure shows a schematic diagram of the layout of the antennas inside and outside the vehicle. Furthermore, in order to be able to send the first LF data and the second LF data to the key located inside or outside the vehicle, antennas are installed inside and outside the vehicle (the position shown in red in the figure is the antenna installation position). The antenna can emit a low-frequency electromagnetic field of 125KHZ in real time, and generate an induced voltage when the key is close to the vehicle.

[0059] To sum up, compared with the prior art in which key positioning is performed only after the last vehicle door is completely closed, there is a problem that the key cannot be positioned after the electric door is completely closed due to the long closing time of the electric door, thereby failing to perform the away locking function normally. The present invention provides a vehicle electric door away locking method and system, which performs key positioning when the first electric door begins to close. Since the key positioning is performed when the first electric door begins to close, the key will inevitably be positioned; the key positioning is performed again when the last electric door is completely closed. If the key signal cannot be positioned in the vehicle locking area, it means that the key has been away from the vehicle locking area, and the triggering condition of the vehicle away locking is met, that is, the key signal is detected from being present to being absent, the vehicle can perform the away locking function normally, and all the electric doors of the vehicle can be automatically locked.

[0060] It should be noted that although the present invention is disclosed as above by specific embodiments, the above embodiments are not intended to limit the present invention. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A method for locking a vehicle electric door away from the vehicle, characterized in that: The following steps are involved: S1: When the first electric door of the vehicle is opened or closed, key positioning is performed; S2: After each electric door is completely closed, determine whether the electric door is the last electric door to be completely closed. If it is the last electric door to be completely closed, proceed to the next step; otherwise, determine whether the next electric door to be completely closed is the last electric door to be completely closed. S3: Position the key again. If the key signal cannot be located in the vehicle locking area, the away locking function is executed and the entire vehicle is automatically locked.

2. A vehicle electric door remote locking method according to claim 1, characterized in that: In step S2, determining whether the fully closed electric door is the last fully closed electric door includes the following steps: Determine whether there is an unclosed electric door after the electric door is completely closed, and whether the electric door is opened again within a preset time after the electric door is completely closed. If there is no unclosed electric door and no electric door is opened, it is determined that the electric door is the last electric door to be completely closed; otherwise, it is determined that the electric door is not the last electric door to be completely closed.

3. A vehicle electric door remote locking method according to claim 1, characterized in that: The key positioning method in step S1 includes one-time positioning, continuous positioning or periodic positioning.

4. A vehicle electric door remote locking method according to claim 1, characterized in that: The key positioning method in step S3 includes continuous positioning or periodic positioning.

5. A vehicle electric door remote locking method according to claim 1, characterized in that: In step S1, when the first electric door of the vehicle is opened or closed, key positioning is performed, including the following steps: When the first electric door of the vehicle is opened or closed, the acquisition module installed on the electric door acquires an opening or closing signal, and the sending module installed on the electric door sends the acquired opening or closing signal to the vehicle body controller; After receiving the opening or closing signal, the body controller sends an addressing instruction to the antenna, and the antenna sends the first LF data to the key based on the received addressing instruction; The key sends first RF position data to the vehicle body controller based on the first LF data; The body controller determines the key location based on the first RF location data.

6. A vehicle electric door remote locking method according to claim 1, characterized in that: When the last electric door is completely closed in step S3, the key positioning is performed again, including the following steps: When the last electric door of the vehicle is fully closed, the acquisition module installed on the electric door acquires a fully closed signal, and the sending module installed on the electric door sends the acquired fully closed signal to the vehicle body controller; After receiving the full-close signal, the body controller sends an addressing command to the antenna, and the antenna sends the second LF data to the key based on the received addressing command; The key sends second RF position data to the vehicle body controller based on the second LF data; The body controller determines the key location based on the second RF location data.

7. A vehicle electric door away locking system, used to implement the vehicle electric door away locking method according to any one of claims 1 to 6, characterized in that: include: Body controller; An acquisition module and a transmission module installed on the electric door and in communication connection, wherein the transmission module is in communication connection with the vehicle body controller; an antenna, electrically connected to the vehicle body controller and communicatively connected to the key; A lock actuator installed on the electric door, electrically connected to the body controller; When the first electric door of the vehicle is opened or closed, the acquisition module acquires the opening or closing signal of the electric door and transmits it to the sending module; the sending module sends the received opening or closing signal to the body controller; the body controller sends an addressing instruction when receiving the opening or closing signal, the antenna sends first LF data to the key based on the addressing instruction, the key sends first RF position data to the body controller based on the first LF data, and the body controller determines the position of the key based on the first RF position data; When the last electric door of the vehicle is fully closed, the acquisition module acquires the fully closed signal of the electric door and transmits it to the sending module; the sending module sends the received fully closed signal to the body controller; the body controller sends an addressing instruction when receiving the fully closed signal; the antenna sends second LF data to the key based on the received addressing instruction, the key sends second RF position data to the body controller based on the second LF data, and the body controller determines the position of the key based on the second RF position data; If the key signal cannot be located in the vehicle locking area, the away locking function is executed and all the vehicle's electric doors are automatically locked.

8. The vehicle electric door remote locking system according to claim 7, characterized in that: The electric door is a sliding door, a gull-wing door or a scissor door.

9. The vehicle electric door remote locking system according to claim 8, characterized in that: The acquisition module is a sliding door controller, a side sliding door controller or a scissor door controller.

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