Bluetooth intelligent control system of automobile door lock

Abstract

The utility model provides a Bluetooth intelligent control system of an automobile door lock, which comprises a Bluetooth intelligent controller and a connecting wire harness, two ends of the Bluetooth intelligent controller are respectively provided with a first connector and a second connector, the first connector is connected with the connecting wire harness of the original automobile execution end, and the second connector is connected with the connecting wire harness of the original automobile execution end. And the second connector is connected to a third connector on the original door lock controller through a connecting wire harness. According to the Bluetooth intelligent control system of the automobile door lock, the system can be additionally arranged between an original automobile door lock controller and an automobile wire harness in a wire-breaking-free and lossless mode, an original automobile common door lock control module is upgraded to have the wireless Bluetooth function, automobile wireless Bluetooth equipment emits broadcast signals, and the automobile door lock control module can be used for controlling the automobile door lock. And the mobile Bluetooth equipment held by the user is connected through password authentication, whether the user is in a leaving or approaching state is judged according to the intensity change of a received signal, if the user is judged to approach, the lock is unlocked, and if the user is judged to leave, the lock is locked.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive door lock control systems, in particular to a Bluetooth intelligent control system for automotive door locks. Background Technique

[0002] Automobiles are an important means of transportation in our daily life. At present, there are mainly two sets of solutions for the electric door lock remote control switch technology of automobiles. One is to send wireless signals through the button switch of the remote control key. After the in-vehicle door lock controller receives the remote control key signal, it makes corresponding door lock opening and closing actions. This solution is common in ordinary models. The other is that the remote control key continuously emits wireless broadcast signals. When the in-vehicle door lock controller receives this signal, it can judge whether the signal is approaching or leaving. If it approaches a certain distance, it unlocks; if it leaves a certain distance, it locks. This solution is common in high-end models. If an ordinary model of the first solution wants to upgrade to a function of automatically unlocking when approaching the car and automatically locking when leaving the car similar to the second solution, the current method 1: disassemble the remote control key, weld the remote control key circuit board to the Bluetooth receiver, and plug the Bluetooth receiver into the automotive OBD. The disadvantage of this method is that it needs to damage the original key and requires welding circuit operations, which belongs to a lossy installation, and there is a considerable risk for ordinary consumers to operate. Method 2: replace the door lock controller with Bluetooth receiving function and replace the new car key at the same time. The disadvantage of this method is that it is expensive, and the new key needs to be ground and matched with the old door lock, which is not conducive to consumers' choice. Therefore, the door locks without Bluetooth control function are inconvenient to use and are prone to forgetting to lock the door, and adding Bluetooth requires disassembling the key for reinstallation, which requires a large cost. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] The problem to be solved by the utility model is to provide a Bluetooth intelligent control system for automotive door locks to overcome the defects that automotive door locks cannot be Bluetooth-controlled or it is inconvenient to add a Bluetooth system in the prior art.

[0005] (2) Technical Solution

[0006] To solve the above technical problems, the present utility model provides a Bluetooth intelligent control system for an automotive door lock, which includes a Bluetooth intelligent controller and a connection wire harness. Both ends of the Bluetooth intelligent controller are respectively provided with a first connector and a second connector. The first connector is connected to the connection wire harness of the original vehicle's actuator end, and the second connector is connected to a third connector on the original vehicle door lock controller through the connection wire harness. The Bluetooth intelligent controller can receive signals from an external mobile device and the original vehicle door lock controller, and transmit them to the original vehicle's actuator end through the first connector and the connection wire harness to control the opening and closing of the door lock. The Bluetooth intelligent controller is a single-chip microcomputer, and a Bluetooth intelligent control circuit is assembled in the inner cavity of the Bluetooth intelligent controller housing. When the Bluetooth intelligent controller receives signals such as unlocking, locking, lighting, and alarm from the original automotive door lock controller, it outputs corresponding signals through the first connector to ensure that the functions of the original automotive door lock controller remain unchanged. When receiving the approach or departure of the Bluetooth signal from an external mobile device, the Bluetooth intelligent controller outputs corresponding unlocking, locking, lighting, and warning signals through the first connector to realize the function of automatically opening and closing the door lock by the mobile device.

[0007] In some embodiments, connection parts are provided at both ends of the connection wire harness. The first connector, the second connector, and the third connector are all connected to the connection wire harness through the connection parts. The connection wire harness is connected to the connection parts through multiple (specifically 12 in this embodiment) signal lines. The Bluetooth intelligent controller and the original vehicle door lock controller are positioned by a fixing bracket, which is fixed on the vehicle body. The Bluetooth intelligent controller and the original vehicle door lock controller are fastened to the fixing bracket by bolts.

[0008] (III) Beneficial effects

[0009] The Bluetooth intelligent control system for an automotive door lock provided by the present utility model can be installed between the original automotive door lock controller and the automotive wire harness without breaking the wire and causing damage, enabling the original ordinary door lock control module of the vehicle to be upgraded to have a wireless Bluetooth function. The automotive wireless Bluetooth device emits a broadcast signal, which is connected to the mobile Bluetooth device held by the user through password authentication. By receiving the change in signal strength, it is judged whether the user is in a leaving or approaching state. If it is judged that the user is approaching, the door is unlocked; if it is judged that the user is leaving, the door is locked. The user only needs to carry a Bluetooth device that has passed password authentication to realize the function of automatically opening and closing the vehicle door lock. Description of the drawings

[0010] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 System diagram of the connection method of a Bluetooth intelligent control system for an automobile door lock according to the present utility model;

[0012] Figure 2 Structural diagram of the installation method of a Bluetooth intelligent control system for an automobile door lock according to the present utility model;

[0013] Figure 3 Schematic diagram of the connector of a Bluetooth intelligent control system for an automobile door lock according to the present utility model.

[0014] The corresponding component names for the respective reference numerals in the figure are: 1. Bluetooth intelligent controller; 2. Connection harness; 3. First connector; 4. Second connector; 5. Original vehicle door lock controller; 6. Third connector; 7. Connection part; 8. Fixed bracket. Specific implementation mode

[0015] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0016] The following illustrates the implementation modes of the present application through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation modes. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0017] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be obvious that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is illustrative only. Based on the present application, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects described herein can be used to implement the device and / or practice the method. In addition, this device and / or this method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0018] It should also be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner. The diagrams only show the components related to the present application, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0019] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the examples can be practiced without these specific details.

[0020] Referring to Figures 1 to 3 , the present utility model provides a Bluetooth intelligent control system for an automotive door lock, including a Bluetooth intelligent controller 1 and a connection harness 2. The Bluetooth intelligent controller 1 is a single-chip microcomputer. First connectors 3 and second connectors 4 are respectively provided at both ends of the Bluetooth intelligent controller 1. The first connector 3 is connected to the connection harness 2 of the original vehicle execution end, and the second connector 4 is connected to a third connector 6 on the original vehicle door lock controller 5 through the connection harness 2. In a conventional vehicle, the original wiring harness is directly connected to the original vehicle door lock controller 5 for control; the connection harness 2 is used for signal transmission between the Bluetooth intelligent controller 1 and the original vehicle door lock controller 5. The front end of the Bluetooth intelligent controller 1 is electrically connected to the original vehicle wiring harness through the first connector 3, and the rear end is connected to the connection harness 2 and the original vehicle door lock controller 5 through the second connector 4. The Bluetooth intelligent controller 1 can receive external mobile device Bluetooth signals and the signals of the original vehicle door lock controller 5, and after processing, outputs a switch signal through the first connector 3. The original vehicle door lock execution end receives the switch signal and performs corresponding door lock opening and closing operations; specifically, a Bluetooth intelligent control circuit is assembled in the inner cavity of the controller housing; when the Bluetooth intelligent controller 1 receives signals such as unlocking, locking, lighting, and alarm sent by the original vehicle door lock controller 5, it outputs corresponding signals through the first connector 3 to ensure that the functions of the original vehicle door lock controller 5 remain unchanged. When receiving the approach or departure of a Bluetooth signal from an external mobile device, the Bluetooth intelligent controller 1 outputs corresponding unlocking, locking, lighting, and warning signals through the first connector 3 to realize the function of automatically opening and closing the door lock by the mobile device; according to different vehicle models, the names of the door lock controllers are different, and some door lock controls are combined with functions such as wipers, and some door lock controllers are integrated with the vehicle computer. Here, the door lock controller generally refers to in-vehicle components with door lock control functions.

[0021] In some embodiments, such as Figure 1 and 2As shown, connection portions 7 are provided at both ends of the connection wire harness 2. The first connector 3, the second connector 4, and the third connector 6 are all connected to the connection wire harness 2 through the connection portions 7. The connection wire harness 2 is connected to the connection portions 7 through a plurality of signal lines. Specifically, there are 12 signal lines in this embodiment. The Bluetooth smart controller 1 and the original car door lock controller 5 are positioned by a fixing bracket 8. The fixing bracket 8 is fixed on the vehicle body. The Bluetooth smart controller 1 and the original car door lock controller 5 are fastened to the fixing bracket 8 by bolts. Since there are differences in the connection wire harness 2 and the connection portions 7 for different vehicle models, connectors with different interfaces can be matched for connection according to different vehicle models to meet the requirement of plug and play, and the circuit principle inside the connector can be changed according to actual needs. In this embodiment, as Figure 3 shown, all 12 port signals on the connection wire harness 2 are connected to the Bluetooth smart controller 1. Among them, pin 1 is for positive power supply, pin 2 is for negative ground, pin 3 is for IGN1 power supply, pin 4 is for unlocking, pin 5 is for locking, pin 6 is for the left turn signal, pin 7 is for the right turn signal, pin 8 is for the anti-theft device, pin 9 is for the door lock state, pin 10 is for the vibration sensor, pin 11 is for the door contact sensor, and pin 12 is for the vehicle speed sensor. All 12 pin lines pass through the Bluetooth smart controller 1 and are transmitted to the original car door lock controller 5 through the connection wire harness 2. The line connection method is parallel; specifically, pins 1, 2, and 3 supply power to the Bluetooth wireless device and the original car door lock controller respectively. When the Bluetooth smart controller receives a matched mobile phone Bluetooth signal and determines that the Bluetooth signal has gradually increased to the set value, it sends an unlocking electrical signal to pin 4. The car door lock actuator receives this signal and performs the unlocking action, and at the same time outputs the signals of pins 6 / 7 / 8, and the car emits sound and light to cooperate with the unlocking action. When the Bluetooth signal between the Bluetooth smart controller and the connected mobile phone gradually weakens to the set value, it sends a locking electrical signal to pin 5. The car door lock actuator receives this signal and performs the locking action, and at the same time outputs the signals of pins 6 / 7 / 8, and the car emits sound and light to cooperate with the locking action. Since the connection method between the wireless Bluetooth device and the original car door lock controller is parallel, all functions of the original car door lock controller can be used normally; according to actual needs, the number of pins of the connector can also be changed, and the line can be changed from parallel to series.

[0022] A Bluetooth smart control system for a car door lock provided by the present utility model can be installed between the original car door lock controller and the car wire harness without breaking the wire and causing damage, enabling the original ordinary door lock control module of the vehicle to be upgraded to have a wireless Bluetooth function. The car wireless Bluetooth device emits a broadcast signal and is connected to the mobile Bluetooth device held by the user through password authentication. By receiving the change in signal strength, it judges whether the user is in a leaving or approaching state. If it judges that the user is approaching, it unlocks; if it judges that the user is leaving, it locks. The user only needs to carry a Bluetooth device authenticated by password to realize the automatic unlocking and locking function of the vehicle.

[0023] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A Bluetooth intelligent control system for a car door lock, comprising a Bluetooth intelligent controller (1) and a connecting harness (2), characterized in that: The front end of the Bluetooth smart controller (1) is provided with a first connector (3), the first connector (3) is connected to a connection harness (2) of an original vehicle execution end, and the rear end of the Bluetooth smart controller (1) is connected to a third connector (6) on an original vehicle door lock controller (5) through the connection harness (2); the Bluetooth smart controller (1) can receive signals from an external mobile end and the original vehicle door lock controller (5), and transmit the signals to the original vehicle execution end through the first connector (3) and the connection harness (2) to control the door lock to be opened or closed.

2. The Bluetooth intelligent control system for a car door lock as claimed in claim 1, characterized in that: The rear end of the Bluetooth smart controller (1) is also provided with a second connector (4), the ends of the connection harness (2) are all provided with a connecting portion (7), and the first connector (3), the second connector (4) and the third connector (6) are all connected to the connection harness (2) via the connecting portion (7).

3. The Bluetooth intelligent control system for a car door lock as claimed in claim 1, characterized in that: The Bluetooth intelligent controller (1) and the original vehicle door lock controller (5) are positioned via a fixing frame (8), the fixing frame (8) is fixed on the vehicle body, and the Bluetooth intelligent controller (1) and the original vehicle door lock controller (5) are fastened to the fixing frame (8) via bolts.

4. The Bluetooth intelligent control system for a car door lock as claimed in claim 2, characterized in that: The connection harness (2) is connected to the connection portion (7) via a plurality of signal lines.

5. The Bluetooth intelligent control system for automobile door locks according to claim 1, characterized in that: The Bluetooth intelligent controller (1) is a single chip microcomputer.

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