Motorcycle nfc and ignition switch linkage control device and control method

Abstract

The application relates to the technical field of motorcycles, in particular to a motorcycle NFC and ignition switch linkage control device and a control method. The NFC and ignition switch control device realizes the coordinated work and interlocking protection of the NFC module and mechanical control according to different gears of a mechanical ignition switch. The control method is as follows: when the mechanical ignition switch is in the power-on gear, the whole vehicle is directly controlled to be powered on by a mechanical path, and the NFC module is powered off and does not work; when the mechanical ignition switch is in the power-off gear, the whole vehicle is controlled to be powered on and powered off by the NFC module through card swiping; when the mechanical ignition switch is in the lock handle gear, the whole vehicle and the NFC module are completely powered off, so that the steering safety risk caused by starting the vehicle in the lock handle state due to the misoperation of the NFC is effectively prevented without increasing additional costs, and the problem of battery power loss caused by the long-term small current consumption of the NFC module is avoided. The NFC control device provided by the application has the advantages of low cost and high safety.

Description

Technical Field

[0001] This invention relates to the field of motorcycle technology, specifically to a motorcycle NFC and ignition switch linkage control device and control method. Background Technology

[0002] As a popular mode of transportation, motorcycles are increasingly valued for their convenience and safety. Traditional mechanical key start-up methods are inconvenient, as forgetting the key renders the motorcycle unusable. To address this, motorcycles equipped with NFC card-based start-up have emerged, allowing users to control the vehicle's power supply via an NFC card or an NFC-enabled smartphone, greatly enhancing convenience.

[0003] Currently, there are two main types of NFC solutions for motorcycles on the market: one integrates the NFC function into the central control box or smart ignition switch, but this is costly and difficult to apply to economy commuter vehicles; the other simply connects the NFC control in parallel with the ignition switch. While this solution is cheaper, it poses a serious safety hazard—when the mechanical ignition switch is in the "lock handlebars" position (i.e., the handlebars are locked), forcibly starting the motorcycle via NFC will result in a risk of falling because the handlebars cannot be turned. Furthermore, if the NFC module remains in standby mode for an extended period, its minimal current consumption may deplete the battery, affecting the vehicle's ability to start.

[0004] Therefore, there is an urgent need for a motorcycle NFC and ignition switch linkage control scheme that can balance convenience, security (especially lock handle protection) and battery protection without significantly increasing costs. Summary of the Invention

[0005] To address the problems identified in the background art, the present invention aims to provide a motorcycle NFC and ignition switch linkage control device and method. The NFC and ignition switch linkage control device, through a deep coupling design between the NFC module and the mechanical ignition switch position, achieves convenient NFC start / stop functionality while completely eliminating the safety risk of accidental start-up when the motorcycle is locked, and also solves the standby power consumption problem of the NFC module.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This invention first provides a motorcycle NFC and ignition switch linkage control device, including a mechanical ignition switch, an NFC module, and a relay. The mechanical ignition switch has at least three positions: a locked position, an off position, and a powered position, which are respectively connected to a battery, the NFC module, and the vehicle's ignition system. The relay is controlled by the NFC module, and its switch contacts are connected in series in the power supply circuit from the battery to the vehicle's ignition system through the NFC module. The NFC module includes an NFC sensing control unit for communicating with authorized NFC cards; the operating logic of the NFC sensing control unit is controlled by the current position of the mechanical ignition switch, specifically: When the mechanical ignition switch is in the "lock" position, the power output from the battery to the vehicle ignition system and the NFC module is cut off, so that both are in a de-energized state. When the mechanical ignition switch is in the off position, the direct path from the battery to the vehicle ignition system is disconnected, and the NFC module is powered and its NFC card swiping control function is activated. After verifying the legality of the authorized NFC card, the NFC module controls the relay to engage or disengage, thereby indirectly connecting or disconnecting the power supply to the vehicle ignition system. When the mechanical ignition switch is in the energized position, it directly connects the battery to the vehicle ignition system and cuts off or stops the card swiping control function of the NFC module.

[0007] The NFC module is also connected to the vehicle status detection unit to acquire the vehicle stationary status signal; when the vehicle is stationary, the NFC module responds to the authorized NFC card's renewed valid sensing and controls the relay to disconnect, thereby cutting off the power supply to the vehicle ignition system.

[0008] The vehicle status detection unit includes a neutral switch and / or a vehicle speed sensor; the vehicle stationary status signal is a ground signal generated by the neutral switch and / or a signal output by the vehicle speed sensor indicating that the vehicle speed is zero.

[0009] The relay is directly driven by the NFC module to control the on / off state of its coil. The relay has four connection ports, namely coil interface 1, coil interface 2, on / off port 3 and on / off port 4. On / off port 3 and on / off port 4 form the relay's switch contacts. Coil interface 1 is connected to the NFC power supply, coil interface 2 is connected to the NFC control terminal, on / off port 3 is connected to the NFC power supply, and on / off port 4 is connected to the power supply line of the vehicle's ignition system.

[0010] The communication between the NFC module and the authorized NFC card is a near-field wireless communication.

[0011] This invention also provides a method for linking motorcycle NFC with ignition switch, applicable to the linkage control device described above, comprising the following steps: S1: Detects the current position of the mechanical ignition switch; S2: If the current gear is off, power the NFC module and activate its NFC function, wait for and recognize the NFC signal; S3: Verify the validity of the NFC signal. If valid, control the relay to engage and power on the vehicle's ignition system. S4: After the vehicle is started and running, the vehicle status is obtained through the vehicle status detection unit; S5: If the vehicle is detected to be stationary and a valid NFC card swipe signal is received, the relay is controlled to disconnect, cutting off the power supply to the vehicle's ignition system.

[0012] In step S2, when the mechanical ignition switch is in the off position, the mechanical key can be removed from the switch.

[0013] In step S4, the vehicle status includes a neutral signal generated by the neutral switch and / or a vehicle speed signal generated by the vehicle speed sensor.

[0014] The beneficial effects of this invention are as follows: Through hardware and logic linkage, this invention ensures that the NFC function is absolutely disabled when the handlebars are locked, fundamentally eliminating driving hazards caused by misoperation; it utilizes the existing mechanical ignition switch architecture of motorcycles for integrated design, eliminating the need for complex and expensive central control boxes or smart lock cylinders, significantly reducing the hardware cost of implementing the NFC function; in the handlebar lock position, the NFC module is completely powered off, completely eliminating standby current, effectively protecting the battery, and avoiding the problem of starting failure due to long-term inactivity; it provides a convenient NFC keyless start method, while retaining the mechanical key as a backup and primary control method (in the power-on position), resulting in high system reliability. Attached Figure Description

[0015] Figure 1 This is a logic and schematic diagram of the motorcycle NFC and ignition switch linkage control device of the present invention.

[0016] Figure 2 This is a schematic diagram of the circuit principle of the motorcycle NFC and ignition switch linkage control device of the present invention.

[0017] Figure 3 This is a schematic diagram of the relay used in this invention (including a top view, a top-view internal structure diagram, and an internal coil schematic diagram). Figure 4 A schematic diagram of the mechanical ignition switch and key used in conjunction with the present invention (including a schematic diagram of the mechanical ignition switch gear wiring).

[0018] Figure 5 A schematic diagram of an NFC card (including front view, side view, and isometric test view). Detailed Implementation

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-3 As shown, the motorcycle NFC and ignition switch linkage control device provided by this invention mainly includes: a mechanical ignition switch (with three typical positions: lock handlebars, off, and on), an NFC module (with an NFC sensing control unit), and a relay. The linkage control device is connected to both the battery and the motorcycle's overall ignition system; the NFC module can be installed in the dashboard or as a separate module.

[0021] The mechanical ignition switch has three positions and four interfaces, namely interface 1#, interface 2#, interface 3#, and interface 4#. Interface 1# and interface 2# form one on / off pair, and interface 3# and interface 4# form another on / off pair. When the mechanical ignition switch is turned to the on position, interface 1# and interface 2# are connected, and interface 3# and interface 4# are either connected or disconnected. When the mechanical ignition switch is turned to the off position, interface 3# and interface 4# are connected, and interface 1# and interface 2# are disconnected. When the mechanical ignition switch is in the locked position, interface 1# and interface 2# are disconnected, and interface 3# and interface 4# are disconnected.

[0022] The mechanical ignition switch has interface 1# connected to the positive terminal of the battery, interface 2# connected to the vehicle ignition system, interface 3# connected to the positive terminal of the battery, and interface 4# connected to the positive power supply terminal of the NFC module. A relay is connected between interface 4# and the power supply line of the vehicle ignition system. The NFC module controls the on / off state of the relay based on a valid NFC signal or a signal provided by the vehicle status detection unit (such as a neutral switch or vehicle speed sensor), thereby controlling the power supply path from the battery to the vehicle ignition system through interface 4#.

[0023] This invention also provides a method for linking motorcycle NFC with ignition switch, applicable to the linkage control device described above, comprising the following steps: S1: Detects the current position of the mechanical ignition switch; S2: If the current gear is off, power the NFC module and activate its NFC function, wait for and recognize the NFC signal; S3: Verify the validity of the NFC signal. If valid, control the relay to engage and power on the vehicle's ignition system. S4: After the vehicle is started and running, the vehicle status is obtained through the vehicle status detection unit; S5: If the vehicle is detected to be stationary and a valid NFC card swipe signal is received, the relay is controlled to disconnect, cutting off the power supply to the vehicle's ignition system.

[0024] In step S2, when the mechanical ignition switch is in the off position, the mechanical key can be removed from the switch.

[0025] In step S4, the vehicle status includes a neutral signal generated by the neutral switch and / or a vehicle speed signal generated by the vehicle speed sensor.

[0026] Based on the above-described linkage control method, the working process of the motorcycle NFC and ignition switch linkage control device of the present invention is as follows: The user inserts the key into the ignition switch.

[0027] If the key is turned to the lock position, such as Figure 1 As shown, interfaces 1# and 2# of the mechanical ignition switch are disconnected, as are interfaces 3# and 4#. The power input to the battery positive terminal and the vehicle ignition system and NFC control device is cut off. At this time, the vehicle has no power, the NFC module has no power, the vehicle is in its highest safety lock state, and there is no standby power consumption.

[0028] If the key is turned to the off position (key can be removed), interfaces 3 and 4 of the mechanical ignition switch are connected, while interfaces 1 and 2 are disconnected. The battery supplies power to the NFC control device through contact interface 4, putting it into standby sensing mode. At this time, the user can use an authorized NFC card (such as...) Figure 4 When a mobile phone (as shown) with NFC functionality is brought near the sensing area, the NFC module verifies the connection and controls the relay connected to its output to engage. This engagement allows the battery power to be supplied to the vehicle's ignition system, enabling the motorcycle to start. When riding ends and the vehicle is in neutral (or the speed signal is zero), the user swipes their card again, causing the NFC module to deactivate the relay, cutting off power to the ignition system. The relay has four connection ports: coil interface 1, coil interface 2, on / off port 3, and on / off port 4. Coil interface 1 connects to the NFC power supply, coil interface 2 connects to the NFC control terminal, on / off port 3 connects to the NFC power supply, and on / off port 4 connects to the vehicle's ignition system. Under normal conditions, on / off ports 3 and 4 are normally open. When the NFC control terminal of coil interface 2 is activated, the relay coil engages, connecting on / off ports 4 and 3, thus powering the vehicle's ignition system.

[0029] When the key is turned to the ignition position, interface 1# and interface 2 of the mechanical ignition switch are connected, and the battery power directly supplies power to the vehicle's ignition system through the mechanical path. At this time, the power supply path to the NFC module is cut off, or its control logic is forcibly disabled, the NFC module's card swipe control function cannot work, and the vehicle is controlled entirely by the traditional mechanical key method.

[0030] By combining circuit logic with the mechanical ignition switch state in the above manner, this invention can realize a safe, intelligent, and energy-saving NFC keyless start system for motorcycles at extremely low cost. The motorcycle NFC keyless start system integrates the aforementioned motorcycle NFC and ignition switch linkage control device and has two sets of mutually exclusive ignition power supply control logics: First logic: The mechanical ignition switch directly establishes a power supply connection from the battery to the vehicle's ignition system when it is in the energized position; The second logic is as follows: the mechanical ignition switch is activated in the off position, and the NFC module, after authorization verification, indirectly establishes or disconnects the power supply connection by controlling the relay. When the mechanical ignition switch is in the locked position, both the first logic and the second logic are disabled.

[0031] In this invention, when the mechanical ignition switch is in the locked position, interface 1# and interface 2 are disconnected, and interface 3# and interface 4# are disconnected, completely de-energizing the NFC module; when the mechanical ignition switch is in the off position, interface 3# and interface 4# of the mechanical ignition switch are connected, the vehicle ignition system has no power but the NFC module receives power and enters standby mode; when the mechanical ignition switch is turned to the energized position, interface 1# and interface 2 of the mechanical ignition switch are connected, the vehicle ignition system receives power directly, and the NFC module function is disabled.

[0032] The NFC module operates a safety control strategy based on gear-shift linkage. This strategy ensures that when the mechanical ignition switch is in a physical safety position for locking the steering mechanism, all power supplies to the NFC control unit are forcibly cut off. This physically ensures that remote or local starting via NFC is impossible in this state, eliminating driving safety hazards caused by accidental starting. This invention, by switching the vehicle's mechanical ignition switch to a specific locking position (such as the steering wheel lock position), simultaneously cuts off the vehicle's main power supply circuit and the NFC control unit's auxiliary power supply circuit. This ensures that when the vehicle is not in use, the NFC module does not consume any standby current, except for necessary low-power circuits such as anti-theft devices.

[0033] In one embodiment of the present invention, the NFC module is integrated inside the instrument cluster of a motorcycle, and its communication antenna is located in a position on the instrument cluster housing that facilitates sensing.

[0034] In another embodiment of the present invention, the NFC module is installed and arranged as a control module independent of the instrument.

[0035] In this invention, the digital information of the authorized NFC card can be securely programmed and recorded into a smartphone or wearable device that supports NFC functionality, enabling the mobile terminal to replace the physical NFC card and implement the control operation of the linkage control method.

[0036] 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.

[0037] The parts of this invention not described in detail are prior art.

Claims

1. A motorcycle NFC and ignition switch linkage control device, comprising a mechanical ignition switch, an NFC module, and a relay, characterized in that: The mechanical ignition switch has at least three positions: locked, off, and powered on, and is connected to the battery, the NFC module, and the vehicle ignition system, respectively. The relay is controlled by the NFC module, and its switch contacts are connected in series in the power supply circuit from the battery to the vehicle ignition system via the NFC module. The NFC module includes an NFC sensing control unit for communicating with authorized NFC cards; the operating logic of the NFC sensing control unit is controlled by the current position of the mechanical ignition switch, specifically: When the mechanical ignition switch is in the locked position, the power output from the battery to the vehicle ignition system and the NFC module is cut off, so that both are in a de-energized state. When the mechanical ignition switch is in the off position, the mechanical path from the battery to the vehicle ignition system is disconnected, and the NFC module is powered and its NFC card swiping control function is activated. After verifying that the authorized NFC card is valid, the NFC module controls the relay to engage or disengage, thereby indirectly connecting or disconnecting the power supply to the vehicle ignition system. When the mechanical ignition switch is in the energized position, it directly connects the mechanical path from the battery to the vehicle ignition system and cuts off or stops the card swiping control function of the NFC module. When the mechanical ignition switch is in the off position, the mechanical key can be removed from the switch.

2. The motorcycle NFC and ignition switch linkage control device according to claim 1, characterized in that, The NFC module is also connected to the vehicle status detection unit to acquire the vehicle stationary status signal; when the vehicle is stationary, the NFC module responds to the authorized NFC card's renewed valid sensing and controls the relay to disconnect, thereby cutting off the power supply to the vehicle ignition system.

3. The motorcycle NFC and ignition switch linkage control device according to claim 2, characterized in that, The vehicle status detection unit includes a neutral switch and / or a vehicle speed sensor; the vehicle stationary status signal is a ground signal generated by the neutral switch and / or a signal output by the vehicle speed sensor indicating that the vehicle speed is zero.

4. The motorcycle NFC and ignition switch linkage control device according to claim 1, characterized in that, The relay is directly driven by the NFC module to control the on / off state of its coil. The relay has four connection ports, namely coil interface 1, coil interface 2, on / off port 3 and on / off port 4. On / off port 3 and on / off port 4 form the relay's switch contacts. Coil interface 1 is connected to the NFC power supply, coil interface 2 is connected to the NFC control terminal, on / off port 3 is connected to the NFC power supply, and on / off port 4 is connected to the power supply line of the vehicle's ignition system.

5. The motorcycle NFC and ignition switch linkage control device according to claim 1, characterized in that, The communication between the NFC module and the authorized NFC card is a near-field wireless communication.

6. A method for linking motorcycle NFC with ignition switch, applicable to the control device as described in any one of claims 1-5, characterized in that, Includes the following steps: S1: Detects the current position of the mechanical ignition switch; S2: If the current gear is off, power the NFC module and activate its NFC function, wait for and recognize the NFC signal; S3: Verify the validity of the NFC signal. If valid, control the relay to engage and power on the vehicle's ignition system. S4: After the vehicle is started and running, the vehicle status is obtained through the vehicle status detection unit; S5: If the vehicle is detected to be stationary and a valid NFC card swipe signal is received, the relay is controlled to disconnect, cutting off the power supply to the vehicle's ignition system.

7. The method according to claim 6, characterized in that, In step S4, the vehicle status includes a neutral signal generated by the neutral switch and / or a vehicle speed signal generated by the vehicle speed sensor.

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