Vehicle door unlocking device and vehicle

Abstract

The vehicle door unlocking device comprises an external power source, a switch element, a storage battery and a vehicle body controller, the positive electrode of the external power source is connected with the positive electrode of the storage battery, and the switch element is arranged in a circuit between the positive electrode of the external power source and the positive electrode of the storage battery. The cathode of the external power supply is connected with the cathode of the storage battery, the anode of the storage battery is connected with one end of the vehicle body controller, the cathode of the storage battery is connected with the other end of the vehicle body controller, and the vehicle body controller is further connected with the vehicle door lock. When the vehicle is in a power-lacking state, the power supply outside the vehicle is connected with the storage battery through the switch element, the storage battery is charged through the power supply outside the vehicle, then the vehicle body controller is charged to unlock the vehicle door, the control logic is simple, and the safety is high. And the vehicle door can be unlocked without being limited by the voltage and the electric quantity of a vehicle storage battery when the vehicle is in a power-lack state, the structure is simple, and the reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a door unlocking device and a vehicle. Background Technology

[0002] In current technology, an increasing number of vehicles are using facial recognition or NFC to replace traditional mechanical keys to improve their level of intelligence. However, if a vehicle is left unattended for an extended period or if electrical appliances are left on unnecessarily, causing the vehicle's battery to drain or even severely drain, the doors will become unusable. Currently, unlocking a vehicle with a low battery usually relies on a mechanical key, but if the vehicle does not have a mechanical key or the user does not have it with them, the user cannot unlock the vehicle. Utility Model Content

[0003] The present invention aims to at least solve the technical problem in the prior art that the vehicle door cannot be intelligently unlocked when the vehicle is in a state of low power.

[0004] Therefore, one objective of this utility model is to provide a vehicle door unlocking device, which includes an external power source, a switching element, a battery, and a vehicle body controller. The positive terminal of the external power source is connected to the positive terminal of the battery. The switching element is disposed in the circuit between the positive terminal of the external power source and the positive terminal of the battery. The negative terminal of the external power source is connected to the negative terminal of the battery. The positive terminal of the battery is connected to one end of the vehicle body controller, and the negative terminal of the battery is connected to the other end of the vehicle body controller. The vehicle body controller is also connected to a vehicle door lock.

[0005] In some embodiments, the external power source and the switching element are connected via a jump-start interface, which includes an external jump-start interface and an internal jump-start interface. The external jump-start interface is connected to the positive and negative terminals of the external power source, respectively, and the internal jump-start interface is connected to the positive and negative terminals of the battery, respectively.

[0006] In some embodiments, the switching element includes a relay, a first pin of the switching element is connected to the positive terminal of the battery, a second pin of the switching element is connected to the first pin of the vehicle jump start interface, a relay switch is connected between the first pin and the second pin of the switching element, and a coil is connected between the third pin and the fourth pin of the switching element.

[0007] In some embodiments, the first pin of the external jump starter is connected to the first and second pins of the internal jump starter, and the second pin of the external jump starter is connected to the third pin of the internal jump starter.

[0008] In some embodiments, the switching element includes a relay, a first pin of the switching element is connected to the positive terminal of the battery, a second pin of the switching element is connected to the first pin of the vehicle jump start interface, a relay switch is connected between the first pin and the second pin of the switching element, and a coil is connected between the third pin and the fourth pin of the switching element.

[0009] In some embodiments, the negative terminal of the battery is connected to the vehicle grounding point, the third pin of the switching element is connected to the vehicle grounding point, and the fourth pin of the switching element is connected to the second pin of the vehicle jump-start interface.

[0010] In some embodiments, a fuse is provided in the circuit between the positive terminal of the battery and the switching element.

[0011] In some embodiments, the body controller includes a plurality of control units, the plurality of control units including a left front door locking unit, a three-door locking unit and a four-door unlocking unit, the left front door locking unit being connected to the door lock of the left front door, the three-door locking unit being connected to the door locks of the right front door, the left rear door and the right rear door, and the four-door unlocking unit being connected to the door locks of the left front door, the right front door, the left rear door and the right rear door.

[0012] In some embodiments, the external power supply includes at least one of a UPS power supply, a battery pack power supply, a lithium battery, a voltage regulator, and a current regulator, and the current of the external power supply does not exceed the current carrying capacity of the fuse.

[0013] Another objective of this invention is to provide a vehicle that includes the aforementioned door unlocking device.

[0014] The vehicle door unlocking device and vehicle provided in this embodiment of the utility model have the following beneficial effects:

[0015] In this embodiment, when the vehicle is in a state of low power, an external power source and a battery are connected through a switching element. The external power source supplies power to the body controller to unlock the doors. The control logic is simple, and the doors can be unlocked without being restricted by the voltage or power of the vehicle's battery when the vehicle is in a state of low power, resulting in high reliability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a car door unlocking device according to an embodiment of this utility model.

[0018] Figure label:

[0019] 1. External power supply; 2. Battery; 3. Switching components; 31. Relay switch; 32. Coil; 4. Body control unit; 41. Left front door locking unit; 42. Three-door locking unit; 43. Four-door unlocking unit; 5. Jump start interface; 51. External jump start interface; 52. Internal jump start interface; 6. Body grounding point; 7. Fuse. Detailed Implementation

[0020] Various embodiments and features of this utility model are described herein with reference to the accompanying drawings.

[0021] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this invention will be apparent to those skilled in the art.

[0022] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, serve to explain the principles of the present invention.

[0023] These and other features of the present invention will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0024] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of the present invention, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0025] The above and other aspects, features and advantages of the present invention will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0026] Specific embodiments of the present invention will now be described with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of the present invention, which may be implemented in various ways. Well-known and / or repeated functions and structures have not been described in detail to avoid unnecessary or redundant details that could obscure the present invention. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely to serve as the basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of substantially any suitable detailed structures.

[0027] The first embodiment of this utility model provides a car door unlocking device, such as... Figure 1 As shown, the door unlocking device includes an external power source 1 and a battery 2. The positive terminal of the external power source 1 is connected to the positive terminal of the battery 2, and the negative terminal of the external power source 1 is connected to the negative terminal of the battery 2. Here, the external power source 1 refers to a power source that is not part of the vehicle itself but is connected to the vehicle. The battery 2 refers to the vehicle's own power source. When the vehicle's battery is low on power, the external power source 1 supplies power to the vehicle's battery 2.

[0028] The door unlocking device also includes a switching element 3 and a body controller 4. The switching element 3 is located in the circuit between the positive terminal of the external power source 1 and the positive terminal of the battery 2. The two ends of the body controller 4 are connected to the positive and negative terminals of the battery 2, respectively. Furthermore, the body controller 4 is connected to the door lock, and here the body controller 4 is used to control door unlocking. In this embodiment, the switching element 3 controls the connection or disconnection of the external power source 1 and the battery 2. When the vehicle is out of power, the switching element 3 connects the external power source 1 and the battery 2, and the external power source 1 supplies power to the body controller 4, which in turn controls the door lock to unlock. When the vehicle is not out of power, the battery 2 directly supplies power to the body controller 4, which in turn controls the door lock to unlock. In this embodiment, the external power source 1 and the battery 2 are connected by the switching element 3 to form a first circuit, and the body controller 4 is connected to the battery 2 to form a second circuit. The entire circuit has a small number of lines and a relatively simple structure. The control logic for supplying power when the battery 2 is out of power is simple, reliable, and easy to operate.

[0029] The term "low-power state" here refers to the state where battery 2 has insufficient power or is completely depleted.

[0030] In this embodiment, the vehicle doors include a left front door, a right front door, a left rear door, and a right rear door. Here, left and right refer to the left and right positions along the width direction of the vehicle, and front and rear refer to the front and rear positions along the length direction of the vehicle. The left front door is located on the left side of the driver's seat.

[0031] In this embodiment, the external power source 1 and the switching element 3 are connected via jumper interfaces 5. Jumper interfaces 5 include an external jumper interface 51 and an internal jumper interface 52. External jumper interface 51 is the jumper interface connected to the external power source 1, with its positive and negative terminals connected respectively. Internal jumper interface 52 is the jumper interface connected to the battery 2, with its positive and negative terminals connected respectively. The connection between the external power source 1 and the battery 2 is achieved through external jumper interfaces 51 and 52. When the battery 2 is not depleted, external jumper interfaces 51 and 52 operate independently. When the battery 2 is depleted, external jumper interfaces 51 and 52 connect together, simplifying the operation.

[0032] The external jump start interface 51 has a first pin and a second pin. The internal jump start interface 52 has a first pin and a second pin at one end, and a third pin at the other end. The first pin of the external jump start interface 51 is connected to the first pin and the second pin of the internal jump start interface 52, and the second pin of the external jump start interface 51 is connected to the third pin of the internal jump start interface 52. This stable connection between the external jump start interface 51 and the internal jump start interface 52 facilitates the transmission and control of signals and power, ensuring the connection stability between the external power source 1 and the battery 2.

[0033] The first pin of the external jump starter interface 51 is connected to the positive terminal of the external power source 1, and the second pin of the external jump starter interface 51 is connected to the negative terminal of the external power source 1, thereby realizing the power transfer between the external jump starter interface 51 and the external power source 1. The first pin and the second pin of the internal jump starter interface 52 are both connected to the switching element 3, and the third pin of the internal jump starter interface 52 is connected to the vehicle ground point 6, thereby realizing the power transfer between the internal jump starter interface 52 and the battery 2.

[0034] The switching element 3 includes a relay. Specifically, the switching element 3 has four pins: the first pin is a moving contact pin, the second pin is a normally open contact pin, and the third and fourth pins are coil pins. The first pin of the switching element 3 is connected to the positive terminal of the battery 2, the second pin is connected to the first pin of the vehicle jump-start interface 52, a relay switch 31 is connected between the first and second pins, and a coil 32 is connected between the third and fourth pins. When the external power source 1 is connected through the jump-start interface 5, the coil 32 is energized, causing the first and second pins of the switching element 3 to connect, and the relay switch 31 to engage, connecting the battery 2 and the external power source 1 to form a first circuit.

[0035] The body control unit 4 includes multiple control units, including a left front door locking unit 41, a three-door locking unit 42, and a four-door unlocking unit 43. The left front door locking unit 41 is connected to the door lock of the left front door. When the body control unit 4 sends a locking signal to the left front door locking unit 41, the left front door locking unit 41 controls the door lock of the left front door to lock. The three-door locking unit 42 is connected to the door locks of the right front door, left rear door, and right rear door. When the body control unit 4 sends a locking signal to the three-door locking unit 42, the three-door locking unit 42 controls the door locks of the right front door, left rear door, and right rear door to lock simultaneously. The four-door unlocking unit 43 is connected to the door locks of the left front door, right front door, left rear door, and right rear door. When the body control unit 4 sends an unlocking signal to the four-door unlocking unit 43, the four-door unlocking unit 43 controls the door locks of the right front door, left rear door, and right rear door to unlock simultaneously.

[0036] Multiple control units enable the door locks in different locations to be unlocked or locked. When unlocking, the left front door, right front door, left rear door, and right rear door can be unlocked simultaneously, and when locking, they are locked separately to improve safety performance.

[0037] The negative terminal of battery 2 is connected to the vehicle ground point 6, and the third pin of switching element 3 is also connected to the vehicle ground point 6. This ensures the electrical safety of battery 2 and switching element 3.

[0038] A fuse 7 is installed in the circuit between the positive terminal of the battery 2 and the switching element 3. When the current abnormally rises to a certain level and temperature, it melts and cuts off the current to ensure the safety of the vehicle's circuit.

[0039] The external power supply here includes at least one of UPS power supply, battery pack power supply, lithium battery, voltage regulator and current regulator, and the current of the external power supply does not exceed the current carrying capacity of the fuse 7.

[0040] Based on the same inventive concept, a second embodiment of this utility model provides a vehicle including the aforementioned door unlocking device.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0043] In the description of this utility model, "multiple" means two or more.

[0044] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0045] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0046] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle door unlocking device, characterized in that, The system includes an external power supply, a switching element, a battery, and a body controller. The positive terminal of the external power supply is connected to the positive terminal of the battery. The switching element is disposed in the circuit between the positive terminal of the external power supply and the positive terminal of the battery. The negative terminal of the external power supply is connected to the negative terminal of the battery. The positive terminal of the battery is connected to one end of the body controller, and the negative terminal of the battery is connected to the other end of the body controller. The body controller is also connected to a door lock.

2. The door unlocking device according to claim 1, characterized in that, The external power source and the switching element are connected via jump-start interfaces, which include an external jump-start interface and an internal jump-start interface. The external jump-start interface is connected to the positive and negative terminals of the external power source, respectively, and the internal jump-start interface is connected to the positive and negative terminals of the battery, respectively.

3. The door unlocking device according to claim 2, characterized in that, The first pin of the external jump starter is connected to the positive terminal of the external power source, the second pin of the external jump starter is connected to the negative terminal of the external power source, one end of the internal jump starter is connected to the switching element, and the other end of the internal jump starter is connected to the vehicle body grounding point.

4. The door unlocking device according to claim 2, characterized in that, The first pin of the external jump starter is connected to the first and second pins of the internal jump starter, and the second pin of the external jump starter is connected to the third pin of the internal jump starter.

5. The door unlocking device according to claim 2, characterized in that, The switching element includes a relay, a first pin of the switching element is connected to the positive terminal of the battery, a second pin of the switching element is connected to the first pin of the vehicle jump start interface, a relay switch is connected between the first pin and the second pin of the switching element, and a coil is connected between the third pin and the fourth pin of the switching element.

6. The door unlocking device according to claim 5, characterized in that, The negative terminal of the battery is connected to the vehicle grounding point, the third pin of the switching element is connected to the vehicle grounding point, and the fourth pin of the switching element is connected to the second pin of the vehicle jump-start interface.

7. The door unlocking device according to claim 1, characterized in that, A fuse is provided in the circuit between the positive terminal of the battery and the switching element.

8. The door unlocking device according to claim 1, characterized in that, The body controller includes multiple control units, including a left front door locking unit, a three-door locking unit, and a four-door unlocking unit. The left front door locking unit is connected to the door lock of the left front door, the three-door locking unit is connected to the door locks of the right front door, the left rear door, and the right rear door, and the four-door unlocking unit is connected to the door locks of the left front door, the right front door, the left rear door, and the right rear door.

9. The door unlocking device according to claim 7, characterized in that, The external power supply includes at least one of a UPS power supply, a battery pack power supply, a lithium battery, a voltage regulator, and a current regulator, and the current of the external power supply does not exceed the current carrying capacity of the fuse.

10. A vehicle, characterized in that, Includes the door unlocking device according to any one of claims 1-9.

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