A multifunctional door lock control device, a door lock, a control method and a vehicle

Abstract

The application provides a multifunctional door lock control device, a door lock, a control method and a vehicle, and the device comprises: a central lock unlocking switch unit; a child lock module, the child lock module comprises: a child lock switch unit and a child lock motor; wherein one end of the child lock motor is connected with a first wiring end of the child lock switch unit, and the other end of the child lock motor is connected with a first wiring end of the central lock unlocking switch unit; the child lock switch unit and the child lock motor are connected with the central lock unlocking switch unit, the central lock unlocking switch unit is simultaneously used as the unlocking switch unit of the child lock, the number of switch units is reduced, the cost is saved, and the power consumption of the battery is reduced.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a multifunctional door lock control device, door lock, control method, and vehicle. Background Technology

[0002] In existing technologies, vehicle child locks are completely independent of central locking, driver's side lock, super lock, and other door locks. Therefore, a separate child lock unlocking and locking switch unit is set up for child lock control, which is not related to other door locks. However, using a separate child lock unlocking and locking switch unit requires more switch units for control, resulting in high battery consumption and relatively high cost. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a multifunctional door lock control device, door lock, control method, and vehicle, thereby resolving the issues of high battery consumption and cost associated with controlling door locks using multiple switching units. Details are as follows:

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A multifunctional door lock control device, comprising:

[0006] Central locking unlock switch unit;

[0007] The child lock module includes: a child lock switch unit and a child lock motor;

[0008] One end of the child lock motor is connected to the first terminal of the child lock switch unit, and the other end of the child lock motor is connected to the first terminal of the central locking unlock switch unit.

[0009] Furthermore, when the central locking unlock switch unit is engaged, the first terminal of the central locking unlock switch unit is connected to the power supply; when the central locking unlock switch unit is disengaged, the first terminal of the central locking unlock switch unit is grounded; when the child lock switch unit is engaged, the first terminal of the child lock switch unit is connected to the power supply; when the child lock switch unit is disengaged, the first terminal of the child lock switch unit is grounded.

[0010] Furthermore, the central locking unlocking switch unit includes a central locking unlocking relay or a central locking unlocking chip; the child lock switch unit includes a child lock relay or a child lock chip.

[0011] Furthermore, both the central locking unlock chip and the child lock chip are bridge-type chips or half-bridge-type chips.

[0012] Furthermore, both the central locking unlock relay and the child lock relay include five-pin relays.

[0013] Furthermore, the device also includes:

[0014] Central locking switch unit and central locking motor;

[0015] The first terminal of the central locking switch unit is connected to the central locking motor, and then connected to the first terminal of the central locking unlock switch unit.

[0016] Compared with existing technologies, the multifunctional door lock control device of the present invention has the following advantages:

[0017] The multi-functional door lock control device of this invention includes a central locking unlocking switch unit and a child lock locking module. The child lock locking module includes a child lock switch unit and a child lock motor. One end of the child lock motor is connected to a first terminal of the child lock switch unit, and the other end of the child lock motor is connected to a first terminal of the central locking unlocking switch unit. By connecting the child lock switch unit, the child lock motor, and the central locking unlocking switch unit in series, the central locking unlocking switch unit is used as the child lock unlocking switch unit, which reduces the number of switch units, saves costs, and reduces battery consumption.

[0018] Another objective of this invention is to propose a multifunctional door lock to solve the problem of high battery power consumption and high cost caused by multiple switch units.

[0019] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0020] A multi-functional door lock includes a child lock and a central locking system; the multi-functional door lock is controlled by the aforementioned multi-functional door lock control device.

[0021] The advantages of the aforementioned multi-functional door lock and the multi-functional door lock control device compared to the prior art are the same, and will not be repeated here.

[0022] Another objective of this invention is to propose a multifunctional door lock control method to solve the problems of high battery power consumption and high cost associated with controlling door locks with multiple switch units.

[0023] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0024] A multi-functional door lock control method, the method being applied to control the aforementioned multi-functional door lock control device, comprising:

[0025] In response to the child lock unlock signal, the central locking unlock switch unit is engaged and the child lock switch unit is disengaged.

[0026] Furthermore, in response to the child lock locking signal, the central locking unlocking switch unit is disconnected and the child lock switch unit is engaged.

[0027] Furthermore, in response to the central locking unlock signal, the central locking unlock switch unit is engaged, the central locking lock switch unit is disengaged, and the child lock switch unit is engaged.

[0028] Furthermore, in response to the central locking signal, the central locking unlocking switch unit is disconnected, the central locking locking switch unit is engaged, and the child lock unlocking switch unit is disconnected.

[0029] The control method of the multi-functional door lock control device has the same advantages as the aforementioned multi-functional door lock control device over the prior art, and will not be repeated here.

[0030] Another objective of this invention is to provide a vehicle that solves the problem of high battery power consumption and high cost associated with multiple switch units controlling door locks.

[0031] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0032] A vehicle comprising: the aforementioned multi-functional door lock control device or the aforementioned multi-functional door lock.

[0033] The advantages of the vehicle and the aforementioned multi-functional door lock control device compared to the prior art are the same, and will not be repeated here. Attached Figure Description

[0034] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0035] Figure 1 A schematic diagram of the structure of the multifunctional door lock control device in Embodiment 1 of the present invention is shown;

[0036] Figure 2 A schematic diagram of the structure of a multifunctional door lock control device according to another embodiment of the present invention is shown;

[0037] Figure 3 A schematic diagram of the structure of the multifunctional door lock control device according to Embodiment 2 of the present invention is shown;

[0038] Figure 4 A schematic diagram of the structure of the multifunctional door lock control device according to Embodiment 3 of the present invention is shown;

[0039] Figure 5 A schematic diagram of the control circuit of the multifunctional door lock control device according to Embodiment 4 of the present invention is shown. Detailed Implementation

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0041] The following will describe in detail, with reference to the accompanying drawings and embodiments, a multifunctional door lock control device, door lock, control method, and vehicle of the present invention.

[0042] Example 1

[0043] Reference Figure 1 , Figure 1 A schematic diagram of the structure of the multifunctional door lock control device in an embodiment of the present invention is shown, as follows: Figure 1 As shown, it includes:

[0044] Central locking unlock switch unit;

[0045] Child lock module 101, the child lock module 101 includes: a child lock switch unit and a child lock motor;

[0046] One end of the child lock motor is connected to the first terminal of the child lock switch unit, and the other end of the child lock motor is connected to the first terminal of the central locking unlock switch unit.

[0047] In this embodiment of the invention, the child lock is an electronic child lock. When the child lock in the vehicle is engaged, the rear doors can only be opened from the outside and not from the inside, to prevent children from accidentally opening the doors from the inside and causing danger. There can be two child lock motors to control the two rear door locks.

[0048] In this embodiment of the invention, the central locking unlock switch unit is part of the control for unlocking and locking the central locking system. The central locking unlock switch unit, along with the child lock motor and the child lock switch unit, forms a control circuit for unlocking and locking the child lock. By adjusting the current flow of the lock motor through the central locking unlock switch unit and the child lock switch unit, the unlocking and locking of the child lock are controlled. In the prior art, the unlocking function of the child lock is controlled by the child lock unlock switch unit, and the locking function is controlled by the child lock locking switch unit, thus ensuring the functional independence of the child lock. This invention, however, achieves both unlocking and locking functions of the child lock through the cooperation of the central locking unlock switch unit and the child lock unlock switch unit, while still maintaining the functional independence of the child lock. Simultaneously, it reduces the number of switch units, thereby saving costs and reducing battery consumption.

[0049] Reference Figure 2 , Figure 2 Another embodiment of the multifunctional door lock control device of the present invention is shown, such as Figure 2 As shown, it includes:

[0050] The child lock module 201 includes a child lock switch unit and a child lock motor.

[0051] One end of the child lock motor is connected to the first terminal of the child lock switch unit, and the other end of the child lock motor is connected to the first terminal of the central locking unlock switch unit.

[0052] The central locking / unlocking module 202 includes: a central locking unlocking switch unit, a central locking locking switch unit, and a central locking motor. The first terminal of the central locking unlocking switch unit is connected in parallel with the plurality of locking motors and then connected to the first terminal of the central locking locking switch unit.

[0053] Central locking is used to control whether all doors of the vehicle can be opened from the outside. When the central locking is unlocked, the vehicle doors can be opened using the outside handles, and when the central locking is locked, the vehicle doors cannot be opened using the outside handles.

[0054] The lock motor is the control motor for the central locking system. Each door has one lock motor, and all the lock motors of the central locking system are connected in parallel. When the current flows through the lock motor in one direction, the lock motor controls the central locking system to unlock (or lock). When the current flows through the lock motor in the other direction, the lock motor controls the central locking system to lock (or unlock).

[0055] In this embodiment of the invention, the direction of the current flowing through the lock motor is adjusted by the central locking unlocking switch unit and the central locking locking switch unit to control the unlocking or locking of the central locking system. For example, when current flows from the first terminal of the central locking unlocking switch unit, through the lock motor, and into the first terminal of the central locking locking switch unit, the central locking system unlocks; when current flows from the first terminal of the central locking locking switch unit, through the lock motor, and into the first terminal of the central locking unlocking switch unit, the central locking system locks.

[0056] The super lock unlocking and locking module 203 includes a super lock locking switch unit and a super lock motor.

[0057] The first terminal of the super lock locking switch unit is connected to one end of the super lock motor, and the other end of the super lock motor is connected to the first terminal of the central lock unlocking switch unit.

[0058] In this embodiment of the invention, the central locking unlocking switch unit also serves as the super lock unlocking switch unit. The super lock locking switch unit and the central locking unlocking switch unit work together to adjust the direction of the current passing through the super lock motor, thereby controlling the super lock to unlock or lock.

[0059] In this embodiment of the invention, since the child lock can control whether the rear doors can be opened from the inside or outside, the superlock can only control the driver's and passenger's doors to be opened from the inside or outside. In other embodiments, the superlock can be used to control whether all four doors of the vehicle can be opened from the inside or outside simultaneously. When the superlock is locked, the doors cannot be opened from either the inside or outside; when the superlock is unlocked, the doors can be opened from both the inside and outside.

[0060] The master lock unlocking / locking module 204 includes: a master lock locking switch unit and a master lock motor;

[0061] The first terminal of the driver's side lock locking switch unit is connected to one end of the driver's side lock motor, and the other end of the driver's side lock motor is connected to the first terminal of the central locking unlocking switch unit.

[0062] In this embodiment of the invention, for situations where a single door can be unlocked, a driver's side unlocking / locking module is additionally provided. The driver's side unlocking / locking module independently controls the unlocking and locking of the driver's side door. The central locking unlocking switch unit also serves as the driver's side lock unlocking switch unit. Together with the driver's side lock locking switch unit, the driver's side door is unlocked or locked by adjusting the direction of the current passing through the driver's side lock motor.

[0063] The electronic control unit 205 is individually connected to the central locking unlock switch unit, the central locking lock switch unit, the child lock switch unit, the super lock lock switch unit, and the driver's side lock lock switch unit, respectively, so as to individually control the engagement or disengagement of the central locking lock switch unit, the child lock switch unit, the super lock lock switch unit, and the driver's side lock lock switch unit.

[0064] In this embodiment of the invention, the electronic control unit 205 can convert control signals into electrical signals to control each switch unit of the multi-functional door lock control device to engage or disengage.

[0065] For example, when the switching unit is a relay, when the electronic control unit 205 receives the central locking unlock signal, the control current flows from the power supply through the coil of the central locking unlock relay into the electronic control unit, causing the moving contact of the central locking unlock relay to connect with the power input terminal, i.e., the central locking unlock relay is energized. At this time, the potential at the end connected to the central locking lock relay is equal to the power supply connected to the central locking lock relay, and the moving contact of the central locking lock relay is connected to the grounded end, i.e., the central locking lock relay is de-energized. For the control loop of central locking unlock relay-lock motor-central locking lock relay, since the potential at the central locking unlock relay is higher than the potential at the central locking lock relay, the current flows from the first terminal of the central locking unlock relay to the first terminal of the central locking lock relay, and the central locking is unlocked.

[0066] Multiple power supply units 206, different power supply units are connected to the second terminals of different relays in the multi-functional door lock control device.

[0067] In this embodiment of the invention, the power supply is the power supply of a multi-functional door lock control device, which provides current to the central locking / unlocking module, the child lock module, the super lock / unlocking module, and the driver's side lock / unlocking module, so as to control the lock motor through the current, thereby controlling the locking / unlocking of the door lock.

[0068] The child lock unlocking switch unit, central locking lock switch unit, central locking unlocking switch unit, super lock unlocking switch unit, and driver's side lock unlocking switch unit can be child lock unlocking relays, central locking lock lock relays, central locking unlocking relays, super lock unlocking relays, and driver's side lock unlocking relays; or they can be child lock unlocking chips, central locking lock chips, central locking unlocking chips, super lock unlocking chips, and driver's side lock unlocking chips. This invention does not impose specific limitations.

[0069] For example, the child lock unlocking chip, central locking chip, central locking unlocking chip, super lock unlocking chip, and driver's lock unlocking chip can be bridge chips or half-bridge chips; the child lock unlocking relay, central locking relay, central locking unlocking relay, super lock unlocking relay, and driver's lock unlocking relay can be five-pin relays.

[0070] The five-pin relay has two ends for connecting to the two terminals of the coil to allow current to pass through the coil. Of the other three ends, one end is connected to the power supply as the second terminal, the other end is grounded to conduct current, and the third end is connected to the control circuit as the first terminal. The other end of the first terminal is connected to a moving contact inside the relay. The two ends connected to the power supply and the ground have a stationary contact inside the relay, which can be variably combined with the two stationary contacts through the moving contact to control the current output from the relay or the current input from the control circuit to the relay.

[0071] In this embodiment of the invention, by connecting the child lock module with the central locking / unlocking module, the super lock / unlocking module, and the driver's side lock / unlocking module, and through the cooperation between the central locking unlocking switch unit and the child lock switch unit, a child lock switch unit is saved, thus saving costs and reducing battery power consumption, while ensuring that the child lock and the central locking do not interfere with each other.

[0072] Example 2

[0073] Reference Figure 3 , Figure 3 A schematic diagram of the structure of a multifunctional door lock control device according to an embodiment of the present invention is shown, as follows: Figure 3As shown, ECU represents Electronic Control Unit, lock represents locking, and unlock represents unlocking. Power supply units 1, 2, and 3 are connected to the central locking unlock switch unit, the central locking lock switch unit, and the child lock switch unit, respectively. When a switch unit is energized, it indicates that the power supply unit is connected to the switch unit and outputs current. When a switch unit is de-energized, it indicates that the switch unit is grounded. The central locking and child lock are controlled by energizing or de-energizing the central locking unlock switch unit, the central locking lock switch unit, and the child lock switch unit. The control method is as follows:

[0074] In response to the child lock unlock signal, the central control unlock switch unit is engaged and the child lock switch unit is disengaged, thereby unlocking the child lock.

[0075] In response to the child lock locking signal, the central locking unlocking switch unit is disconnected and the child lock switch unit is engaged, thereby locking the child lock.

[0076] In this embodiment of the invention, only the child lock's locking and unlocking needs to be controlled; the central locking system's state is not considered. For example, when the child lock needs to be locked, the central locking unlocking switch unit is opened, the child lock switch unit is engaged, and current flows from the child lock switch unit through the child lock motor into the central locking unlocking switch unit, thus locking the child lock.

[0077] In response to the central locking unlock signal, the central locking unlock switch unit is engaged, the central locking lock switch unit is disengaged, and the child lock switch unit is engaged, so that the central locking can be unlocked independently while the child lock is not affected by the central locking unlock;

[0078] In this embodiment of the invention, the central locking unlock switch unit is engaged, the central locking switch unit is disengaged, and the child lock switch unit is engaged. Since the central locking unlock switch unit is engaged, it is connected to power supply unit 1. The central locking switch unit is grounded after being disengaged. The child lock switch unit is connected to power supply unit 3 after being engaged. For the central locking and unlocking circuit, the central locking unlock switch unit is positive and the central locking lock switch unit is negative. Current flows through the central locking motors M1, M2, M3, and M4 respectively, causing the central locking to unlock. For the child lock's locking and unlocking circuit, the central locking unlock switch unit is positive and the child lock switch unit is also positive. Therefore, the potential of this circuit is equal everywhere, and there is no current. Thus, the child lock remains in its original state, realizing that the central locking is unlocked independently while the child lock is not affected by the central locking unlock.

[0079] In response to the central locking signal, the central locking unlocking switch unit is disconnected, the central locking switch unit is engaged, and the child lock switch unit is disconnected, so that the central locking is locked independently while the child lock is not affected by the central locking.

[0080] In this embodiment of the invention, the central locking unlock switch unit is open, the central locking switch unit is closed, and the child lock switch unit is open. Since the central locking unlock switch unit is grounded after being opened, the central locking lock switch unit is connected to the power supply unit 1 after being closed, and the child lock switch unit is grounded after being opened, the central locking unlock switch unit is negative and the central locking lock switch unit is positive in the central locking unlock circuit. Current flows through the central locking motors M1, M2, M3, and M4 respectively, causing the central locking to lock. However, in the child lock unlock circuit, the central locking unlock switch unit is negative and the child lock switch unit is also negative. Therefore, the potential of this circuit is equal everywhere, and there is no current. Thus, the child lock remains in its original state, realizing that the central locking is locked independently while the child lock is not affected by the central locking unlock.

[0081] This invention, by controlling the central locking unlocking switch unit, the central locking locking switch unit, and the child lock switch unit to engage or disengage, saves on the child lock switch unit, reduces costs, and decreases battery power consumption while ensuring that the child lock and central locking do not interfere with each other.

[0082] Example 3

[0083] Reference Figure 4 , Figure 4 A schematic diagram of the structure of a multifunctional door lock device according to an embodiment of the present invention is shown, as follows: Figure 4 As shown, ECU is the electronic control unit. "lock" indicates locking, and "unlock" indicates unlocking. Power supply units 1, 2, 3, 4, and 5 are connected to the driver's side lock relay, central locking relay, central locking relay, super lock relay, and child lock relay, respectively. Each power supply unit has a positive and a negative terminal. When a relay is energized, it indicates that the power supply unit is connected to the relay; when the relay is de-energized, it indicates that the relay is grounded. The central locking, driver's side lock, child lock, and super lock are controlled by energizing or de-energizing the driver's side lock relay, central locking relay, central locking relay, super lock relay, and child lock relay. The control method is shown in Table 1 below. This control method includes:

[0084] Table 1. Control methods for each door lock

[0085]

[0086] As shown in Table 1, in vehicles equipped with single-door unlocking, superlock, and child lock, the driver's side unlocking, central locking, superlock unlocking, central locking, and superlock locking can all be controlled individually.

[0087] The driver's side lock unlocking controls are as follows:

[0088] When the child lock is unlocked, unlocking the driver's side lock alone will cause the driver's side lock locking relay to deactivate, the central locking unlock relay to activate, the central locking unlock relay to activate, the super lock locking relay to deactivate, and the child lock relay to activate, thereby controlling the driver's side lock to unlock alone.

[0089] Specifically, when the driver's side locking relay is off, the central locking relay is on, the central locking relay is on, the super lock locking relay is off, and the child lock relay is on, for the driver's side lock control circuit, including the driver's side lock locking relay, the central locking relay, and the driver's side lock motor, since the driver's side lock locking relay is grounded and the central locking relay is connected to power supply unit 2, current flows through the lock motor and the driver's side lock motor, thus unlocking the driver's side. For the central locking control circuit, including the central locking relay, the central locking and unlocking relay, and the central locking motor, since the central locking and unlocking relays can both be considered as the positive terminals of the power supply, the potential is equal everywhere in the circuit. Therefore, the central locking motor M1... No current flows through M2 and M3, so the central locking system remains unchanged. For the super lock control circuit, the central locking unlock relay is connected to power unit 4, and the super lock locking relay is grounded. Current flows from the central locking unlock relay to the super lock locking relay, and through the super lock motors P1 and P2, the super lock is unlocked, allowing the driver's side to be opened from both inside and outside. For the child lock control circuit, which includes the central locking unlock relay, child lock relay, and child lock motor, the central locking unlock relay is connected to power unit 2, and the child lock relay is connected to power unit 5. The potential is equal everywhere in the circuit, so no current flows through the child lock motors N1 and N2, and the child lock remains unchanged. At this time, the driver's side unlock is independently controlled.

[0090] When the child lock is engaged, unlocking the driver's side separately will cause the driver's side lock relay to deactivate, the central locking relay to activate, the central locking relay to activate, the super lock relay to deactivate, and the child lock relay to activate, thereby controlling the driver's side to unlock independently.

[0091] Specifically, when the driver's side lock relay is off, the central locking relay is on, the central locking / unlocking relay is on, the super lock relay is off, and the child lock relay is on, for the driver's side lock control circuit, including the driver's side lock relay, the central locking / unlocking relay, and the driver's side lock motor, since the driver's side lock relay is grounded and the central locking / unlocking relay is connected to power supply unit 2, current flows through the driver's side lock motor, and the driver's side lock is unlocked. For the central locking control circuit, including the central locking / unlocking relay, the central locking / unlocking relay, and the central locking motors M1, M2, and M3, since the central locking / unlocking relay and the central locking / unlocking relay are both power sources, the potential is equal everywhere in the circuit. Therefore, the central locking motor M1... No current flows through M2 and M3, so the central locking system remains unchanged. For the super lock control circuit, the central locking unlock relay is connected to power unit 2, and the super lock locking relay is grounded. Current flows from the central locking unlock relay to the super lock locking relay, and through the super lock motors P1 and P2, the super lock is unlocked, allowing the driver's side to be opened from both inside and outside. For the child lock control circuit, which includes the central locking unlock relay, the child lock relay, and the child lock motors N1 and N2, the central locking unlock relay is connected to power unit 2, and the child lock relay is connected to power unit 5. The potential is equal everywhere in the circuit, so no current flows through the child lock motors N1 and N2, and the child lock remains unchanged. At this time, the driver's side unlock is independently controlled.

[0092] By considering the status of each lock motor in both child lock unlocking and locking / unlocking scenarios, unlocking the driver's side door does not affect the status of the child lock and central locking, allowing them to operate independently.

[0093] The unlocking control for the central locking system is as follows:

[0094] When the child lock is unlocked, unlocking the central locking system will cause the driver's lock relay to disconnect, the central locking unlock relay to engage, the central locking and unlock relay to disconnect, the super lock relay to engage, and the child lock relay to engage, thereby controlling the central locking system to unlock independently.

[0095] Specifically, when the driver's side lock relay is off, the central locking relay is on, the central locking / unlocking relay is off, the super lock relay is on, and the child lock relay is on, for the driver's side lock control circuit, the driver's side lock relay is grounded, the central locking / unlocking relay is connected to power supply unit 1, and current flows from the central locking / unlocking relay to the driver's side lock relay, controlling the driver's side lock to unlock; for the central locking control circuit, the central locking / unlocking relay is connected to power supply unit 2, the central locking / unlocking relay is grounded, and current flows from the central locking / unlocking relay through the central locking motors M1, M2, and M3 to the central locking / unlocking relay, controlling the central locking / unlock; for the super lock control circuit, the central locking / unlocking relay is connected to power supply unit 2. The superlock locking relay is connected to power supply unit 4, so the potential is equal everywhere in the circuit. No current flows through the superlock motors P1 and P2, and the superlock remains in its original state. For the child lock control circuit, which includes the central locking unlock relay, child lock relay, and child lock motors N1 and N2, the central locking unlock relay is connected to power supply unit 2, and the child lock relay is connected to power supply unit 5. The potential is equal everywhere in the circuit, so no current flows through the child lock motors N1 and N2, and the child lock remains in its original state. Since the central locking system controls the unlocking or locking of all four doors, the driver's side lock needs to be controlled simultaneously. However, when controlling the driver's side lock alone, a single door can be unlocked without needing to unlock the central locking system as well. Through the above control method, the central locking system can be unlocked independently, while the superlock and child locks remain unaffected.

[0096] When the child lock is engaged, unlocking the central locking system will also deactivate the driver's lock relay, activate the central locking unlock relay, deactivate the central locking / unlock relay, activate the super lock relay, and activate both the child lock relay, thus enabling the central locking system to unlock independently.

[0097] Specifically, when the driver's side lock relay is off, the central locking relay is on, the central locking / unlocking relay is off, the super lock relay is on, and the child lock relay is on, for the driver's side lock control circuit, the driver's side lock relay is grounded, the central locking / unlocking relay is connected to power supply unit 1, and current flows from the central locking / unlocking relay to the driver's side lock relay, controlling the driver's side lock to unlock; for the central locking control circuit, the central locking / unlocking relay is connected to power supply unit 2, the central locking / unlocking relay is grounded, and current flows from the central locking / unlocking relay through the central locking motors M1, M2, and M3 to the central locking / unlocking relay, controlling the central locking / unlock; for the super lock control circuit, the central locking / unlocking relay is connected to power supply unit 2. The superlock locking relay is connected to power supply unit 4, so the potential is equal everywhere in the circuit. No current flows through the superlock motors P1 and P2, and the superlock remains in its original state. For the child lock control circuit, which includes the central locking unlock relay, child lock relay, and child lock motors N1 and N2, the central locking unlock relay is connected to power supply unit 2, and the child lock relay is connected to power supply unit 5. The potential is equal everywhere in the circuit, so no current flows through the child lock motors N1 and N2, and the child lock remains in its original state. Since the central locking system controls the unlocking or locking of all four doors, the driver's side lock needs to be controlled simultaneously. However, when controlling the driver's side lock alone, a single door can be unlocked without needing to unlock the central locking system as well. Through the above control method, the central locking system can be unlocked independently, while the superlock and child locks remain unaffected.

[0098] The locking control for the central locking system is as follows:

[0099] When the child lock is engaged, the central locking system is locked, the driver's side lock locking relay is engaged, the central locking unlock relay is disengaged, the central locking relay is engaged, the super lock locking relay is disengaged, and the child lock relay is disengaged, thus controlling the central locking system to lock.

[0100] Specifically, when the driver's side lock relay is engaged, the central locking relay is disengaged, the central locking relay is engaged, the super lock relay is disengaged, and the child lock relay is disengaged, for the driver's side lock control circuit, the driver's side lock relay is connected to power supply unit 1, the central locking relay is grounded, and current flows from the driver's side lock relay through the driver's side lock motor into the central locking relay, thus locking the driver's side lock. For the central locking control circuit, the central locking relay is grounded, and the central locking relay is connected to power supply unit 3. Current flows from the central locking relay through the central locking motors M1, M2, and M3 into the central locking relay, thus locking the central locking system. For the super lock control circuit, the central locking relay is grounded, and the super lock relay is also grounded. Therefore, the potential is equal everywhere in the circuit, no current flows, and the super lock status is unaffected. For the child lock circuit, the central locking relay is grounded, and the child lock relay is also grounded. Therefore, the potential is equal everywhere in the circuit, no current flows, and the child lock status is unaffected, thus achieving independent locking of the central locking system.

[0101] When the child lock is unlocked, the central locking system will be locked. The driver's side lock locking relay will be engaged, the central locking unlock relay will be disengaged, the central locking relay will be engaged, the super lock locking relay will be disengaged, and the child lock relay will be disengaged, thereby controlling the central locking system to lock.

[0102] Specifically, when the driver's side lock relay is engaged, the central locking relay is disengaged, the central locking relay is engaged, the super lock relay is disengaged, and the child lock relay is disengaged, for the driver's side lock control circuit, the driver's side lock relay is connected to power supply unit 1, the central locking relay is grounded, and current flows from the driver's side lock relay through the driver's side lock motor into the central locking relay, thus locking the driver's side lock. For the central locking control circuit, the central locking relay is grounded, and the central locking relay is connected to power supply unit 3. Current flows from the central locking relay through the central locking motors M1, M2, and M3 into the central locking relay, thus locking the central locking system. For the super lock control circuit, the central locking relay is grounded, and the super lock relay is also grounded. Therefore, the potential is equal everywhere in the circuit, no current flows, and the super lock status is unaffected. For the child lock circuit, the central locking relay is grounded, and the child lock relay is also grounded. Therefore, the potential is equal everywhere in the circuit, no current flows, and the child lock status is unaffected, thus achieving independent locking of the central locking system.

[0103] By considering the status of each lock motor when the child lock is unlocked and locked, the unlocking and locking of the central locking system does not affect the status of the child lock and the super lock, and they can be kept independent of each other.

[0104] The unlocking controls for the superlock are as follows:

[0105] When the child lock is unlocked, the super lock is unlocked, which controls the driver's lock locking relay to engage, the central locking unlock relay to engage, the central locking unlock relay to engage, the super lock locking relay to disengage, and the child lock relay to engage, so as to control the super lock to unlock independently.

[0106] Specifically, when the driver's side lock relay is engaged, the central locking relay is engaged, the central locking / unlocking relay is engaged, the super lock relay is disengaged, and the child lock relay is engaged, for the driver's side lock control circuit, the driver's side lock relay is connected to power supply unit 1, and the central locking / unlocking relay is connected to power supply unit 2. The potential is equal everywhere in the circuit, and no current flows through the driver's side lock motor, so the driver's side lock remains in its original state. For the central locking control circuit, the central locking / unlocking relay is connected to power supply unit 2, and the central locking / unlocking relay is connected to power supply unit 3. The potential is equal everywhere in the circuit, and no current flows through the central locking motors M1, M2, and M3, so the central locking remains in its original state. For the child lock circuit, the central locking / unlocking relay is connected to power supply unit 2, and the child lock relay is connected to power supply unit 5. The potential is equal everywhere in the circuit, and no current flows through the child lock motors N1 and N2, so the child lock remains in its original state. At this time, only the super lock is unlocked, while the central locking, driver's side lock, and child lock all remain in their original states, thus achieving the goal of unlocking the super lock independently.

[0107] When the child lock is locked, unlocking the super lock will activate the driver's lock relay, the central locking unlock relay, the central locking unlock relay, and the super lock lock relay, while the child lock relay will deactivate and activate, thus controlling the super lock to unlock independently.

[0108] Specifically, when the driver's side lock relay is engaged, the central locking relay is engaged, the central locking / unlocking relay is engaged, the super lock relay is disengaged, and the child lock relay is engaged, for the driver's side lock control circuit, the driver's side lock relay is connected to power unit 1, and the central locking / unlocking relay is connected to power unit 2. The potential is equal everywhere in the circuit, and no current flows through the driver's side lock motor, so the driver's side lock remains in its original state. For the central locking control circuit, the central locking / unlocking relay is connected to power unit 2, and the central locking / unlocking relay is connected to power unit 3. The potential is equal everywhere in the circuit, and no current flows through the central locking motors M1, M2, and M3, so the central locking remains in its original state. For the child lock circuit, the central locking / unlocking relay is connected to power unit 2, and the child lock relay is connected to power unit 5. The potential is equal everywhere in the circuit, and no current flows through the child lock motors N1 and N2, so the child lock remains in its original state. At this time, only the super lock is unlocked, while the central locking, driver's side lock, and child lock all remain in their original states, thus achieving the goal of unlocking the super lock independently.

[0109] The locking control for the superlock is as follows:

[0110] When the child lock is unlocked, the super lock will be locked, the driver's lock locking relay will be deactivated, the central locking unlock relay will be deactivated, the central locking unlock relay will be deactivated, the super lock locking relay will be activated, and the child lock relay will be activated, so as to control the super lock to be locked alone.

[0111] When the driver's side lock relay is off, the central locking relay is off, the central locking / unlocking relay is off, and the super lock relay is on and the child lock relay is on, for the driver's side lock control circuit, the driver's side lock relay is grounded, the central locking relay is grounded, the potential is equal everywhere in the circuit, no current flows through the driver's side lock motor, and the driver's side lock remains unchanged; for the central locking control circuit, the central locking relay is grounded, the central locking / unlocking relay is grounded, the potential is equal everywhere in the circuit, no current flows through the central locking motor, and the central locking remains unchanged; for the child lock control circuit, the central locking relay is grounded, the child lock relay is connected to the power supply, current flows through the child lock motors N1 and N2, and the child lock is engaged. This is because the super lock engagement requires controlling the state of all four doors to be unable to be opened from the inside or outside, therefore, the child lock also needs to be engaged to prevent the two rear doors from being opened from the inside. Therefore, at this time, the central locking and driver's side lock are not affected by the super lock's locking, achieving independent control of the super lock. However, since the super lock and child lock have some functional linkages, the child lock's status needs to be adjusted to match the super lock's.

[0112] When the child lock is engaged, the super lock is engaged, which in turn deactivates the driver's side lock, central locking, and central locking / unlocking relays. The super lock is engaged while the child lock is disengaged, allowing the super lock to be engaged independently.

[0113] Specifically, when the driver's lock relay is off, the central locking relay is off, the central locking / unlocking relay is off, and the super lock relay is on and the child lock relay is on, for the driver's lock control circuit, the driver's lock relay is grounded, the central locking relay is grounded, the potential is equal everywhere in the circuit, no current flows through the driver's lock motor, and the driver's lock remains unchanged; for the central locking control circuit, the central locking relay is grounded, the central locking / unlocking relay is grounded, the potential is equal everywhere in the circuit, no current flows through lock motors M1, M2, and M3, and the central locking remains unchanged; for the child lock control circuit, the central locking relay is grounded, the child lock relay is grounded, no current flows through child lock motors N1 and N2, the child lock state remains unchanged, thus achieving independent control of the super lock.

[0114] This invention enables individual control of each door lock by engaging or disengaging the driver's lock, central locking, super lock, and child lock relays upon receiving a door lock control signal. This control of the current in each lock motor allows for independent control of each door lock. This approach saves on the number of relays, reduces costs, and minimizes battery consumption while ensuring that each door lock does not interfere with the others.

[0115] Example 4

[0116] Reference Figure 5 , Figure 5 A schematic diagram of the control circuit of the multi-functional door lock control device in an embodiment of the present invention is shown. An upward flow of current in the master lock motor indicates that the master lock is unlocked, and a downward flow of current in the master lock motor indicates that the master lock is locked. A downward flow of current in the central locking motor indicates that the central locking is unlocked, and an upward flow of current in the central locking motor indicates that the central locking is locked. An upward flow of current in the super lock motor indicates that the super lock is unlocked, and a downward flow of current in the super lock motor indicates that the super lock is locked. An upward flow of current in the child lock motor indicates that the child lock is locked, and a downward flow of current in the child lock motor indicates that the child lock is unlocked.

[0117] In vehicles equipped with single-door unlocking, a superlock, and child locks, when all locks are engaged, unlocking the child lock individually results in the following: the driver's side lock locking relay engages, the central locking unlocking relay engages, the central locking locking relay engages, the superlock locking relay engages, and the child lock relay disengages. At this point, for the driver's side lock control circuit, both the driver's side lock locking relay and the central locking unlocking relay are engaged, both relays are connected to the power supply unit, the potentials in the circuit are equal, no current flows through the driver's side lock motor, and the driver's side lock state remains unchanged. For the central locking control circuit, both the central locking locking relay and the central locking unlocking relay are engaged, and both relays are connected to the power supply unit. When the power supply circuit has equal potential, no current flows through the central locking motor, and the central locking state remains unchanged. For the super lock control circuit, both the super lock locking relay and the central locking unlock relay are energized, and both relays are connected to the power supply. The potential in the circuit is equal, so no current flows through the super lock motor, and the super lock state remains unchanged. For the child lock control circuit, the child lock relay is deactivated, the central locking unlock relay is energized, the child lock relay is grounded, and the central locking unlock relay is connected to the power supply unit. Current flows through the child lock motor, and the child lock unlocks. Through these control methods, the states of the other locks remain unchanged, and only the child lock unlocks, thus achieving independent control of the child lock.

[0118] When all locks are unlocked, locking the child lock alone causes the driver's side lock locking relay, central locking unlock relay, central locking relay, and super lock locking relay to all be disconnected, while the child lock relay is engaged. At this time, for the driver's side lock control circuit, both the driver's side lock locking relay and the central locking unlock relay are disconnected, both relays are grounded, and the potentials in the circuit are equal. No current flows through the driver's side lock motor, and the driver's side lock state remains unchanged. For the central locking control circuit, both the central locking relay and the central locking unlock relay are disconnected, both relays are grounded, and the potentials in the circuit are equal. The central locking... No current flows through the motor, and the central locking status remains unchanged. For the super lock control circuit, both the super lock locking relay and the central lock unlocking relay are energized, both relays are grounded, and the potentials in the circuit are equal. No current flows through the super lock motor, and the super lock status remains unchanged. For the child lock control circuit, the child lock relay is energized, the central lock unlocking relay is de-energized, the child lock relay is connected to the power supply unit, the central lock unlocking relay is grounded, current flows through the child lock motor, and the child lock is unlocked. Through the above control methods, the status of the other locks remains unchanged, and only the child lock is locked, thus realizing the independent control of the child lock.

[0119] This invention achieves individual control of the child lock by engaging or disengaging the driver's side lock locking relay, central locking unlocking relay, central locking locking relay, super lock locking relay, and child lock relay when a child lock control signal is received. This reduces the number of relays, saves costs, and reduces battery power consumption.

[0120] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0121] For the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps can be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and components involved are not necessarily essential to the present invention.

[0122] The foregoing has provided a detailed description of the multifunctional door lock control device, multifunctional door lock and its control method, and vehicle provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A multi-functional door lock control device, characterized in that, The multi-functional door lock control device includes: Central locking unlock switch unit; The child lock module includes: a child lock switch unit and a child lock motor; Wherein, one end of the child lock motor is connected to the first terminal of the child lock switch unit, and the other end of the child lock motor is connected to the first terminal of the central locking unlock switch unit; When the central locking unlock switch unit is engaged, its first terminal is connected to a power source; when the central locking unlock switch unit is disengaged, its first terminal is grounded. When the child lock switch unit is engaged, its first terminal is connected to a power source; when the child lock switch unit is disengaged, its first terminal is grounded.

2. The multi-functional door lock control device according to claim 1, characterized in that, The central locking unlocking switch unit includes a central locking unlocking relay or a central locking unlocking chip; the child lock switch unit includes a child lock relay or a child lock chip.

3. The multifunctional door lock control device according to claim 2, characterized in that, Both the central locking unlock chip and the child lock chip are either bridge chips or half-bridge chips.

4. The multifunctional door lock control device according to claim 2, characterized in that, Both the central locking unlock relay and the child lock relay are five-pin relays.

5. The multifunctional door lock control device according to claim 1, characterized in that, The multi-functional door lock control device also includes: Central locking switch unit and central locking motor; The first terminal of the central locking switch unit is connected to the central locking motor, and then connected to the first terminal of the central locking unlock switch unit.

6. A multi-functional door lock, characterized in that, The multi-functional door lock includes a child lock and a central locking system; the multi-functional door lock is controlled by the multi-functional door lock control device according to any one of claims 1-5.

7. A multifunctional door lock control method, characterized in that, The multi-functional door lock control method is used to control the multi-functional door lock control device according to any one of claims 1-5, and the multi-functional door lock control method includes: In response to the child lock unlock signal, the central locking unlock switch unit engages and the child lock switch unit disengages.

8. The multifunctional door lock control method according to claim 7, characterized in that, The multi-functional door lock control method also includes: In response to the child lock locking signal, the central locking unlocking switch unit is disconnected and the child lock switch unit is engaged.

9. The multifunctional door lock control method according to claim 7, characterized in that, The multi-functional door lock control method also includes: In response to the central locking unlock signal, the central locking unlock relay is activated, the central locking lock switch unit is deactivated, and the child lock switch unit is activated.

10. The multifunctional door lock control method according to claim 7, characterized in that, The multi-functional door lock control method also includes: In response to the central locking signal, the central locking unlock switch unit is disconnected, the central locking lock switch unit is engaged, and the child lock unlock switch unit is disconnected.

11. A vehicle, characterized in that, The vehicle includes: the multi-functional door lock control device according to any one of claims 1-5 or the multi-functional door lock according to claim 6.

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