A control method and device for a light-emitting vehicle luggage rack based on LIN communication

Abstract

This invention belongs to the field of vehicle frame technology and proposes a control method and device for an illuminated vehicle roof rack based on LIN communication. The method includes: confirming the opening or closing of a signal transmission channel, and sending a LIN signal for the application scenario when the signal transmission channel is open; controlling the corresponding color light on the roof rack to illuminate according to the received LIN signal; and turning off the illuminated roof rack accordingly. The method simplifies operation by controlling the opening and closing of the illuminated roof rack via signal control. Through data transmission via the LIN bus, wireless communication between the vehicle and the roof rack is achieved, enabling automated control of the roof rack. Furthermore, this control method is stable and reliable, and also improves safety during nighttime driving.

Description

Technical Field

[0001] This invention belongs to the field of vehicle frame technology, and specifically relates to a control method and device for a light-emitting vehicle luggage rack based on LIN communication. Background Technology

[0002] Roof racks are a common vehicle accessory used to increase a vehicle's cargo capacity. In recent years, with the growing demand for personalized and intelligent products, illuminated roof racks have become increasingly popular, improving their visibility and safety during nighttime driving. However, most existing roof racks use traditional buttons or switches for control, which are cumbersome and lack intelligent operation, failing to meet user needs. Summary of the Invention

[0003] To address the above problems, this invention proposes a control method for a light-emitting vehicle luggage rack based on LIN communication, the method comprising:

[0004] Confirm whether the signal transmission channel is turned on or off, and send the LIN signal for the application scenario when the signal transmission channel is turned on;

[0005] The corresponding color light on the luggage rack is controlled to light up according to the LIN signal received from the application scenario;

[0006] Turn off the lights on the luggage racks as required.

[0007] Optionally, the confirmation of opening or closing the signal transmission channel includes:

[0008] Upon initial power-on, the illuminated roof rack opens automatically, and the opening operation is effective when the vehicle's power is ON.

[0009] Send a signal indicating the operating status of the illuminated luggage rack;

[0010] Upon receiving the operating status signal of the illuminated luggage rack and confirming that it is set to the on state, it will continuously send relevant LIN signals.

[0011] Optionally, the confirmation of opening or closing the signal transmission channel further includes:

[0012] If the illuminated roof rack is turned on, the operation is effective when the vehicle power is ON.

[0013] If the setting is off, send a signal indicating that the setting is off;

[0014] Receive the signal indicating the setting status and update the setting of the illuminated luggage rack's operating status from on to off;

[0015] The status signal will be fed back to confirm that the setting is off.

[0016] Optionally, the confirmation of opening or closing the signal transmission channel further includes:

[0017] If the illuminated roof rack is closed, the activation operation is effective when the vehicle power is ON.

[0018] If the setting is enabled, send a signal indicating that the setting is enabled;

[0019] Upon receiving the signal indicating the setting status, the operating status of the illuminated luggage rack is updated from off to on;

[0020] The status signal is fed back to confirm that the setting is enabled.

[0021] Optionally, the confirmation of opening or closing the signal transmission channel further includes:

[0022] If the vehicle power is switched from ON to OFF, the current roof rack setting will be remembered.

[0023] Send the LIN setting status signal to the illuminated roof rack. After the vehicle is powered back on, send the remembered illuminated roof rack setting status.

[0024] If the vehicle loses power, the current roof rack settings will not be remembered. After power is restored, the illuminated roof rack will be turned on by default.

[0025] Optionally, controlling the corresponding color light on the luggage rack to illuminate based on the received LIN signal for the application scenario includes:

[0026] The vehicle power status signal is sent to the illuminated roof rack according to a predetermined cycle, including sending a vehicle power OFF valid signal;

[0027] The illuminated luggage rack is controlled to light up the corresponding color according to the LIN signal of the application scenario. The LIN signal of the application scenario includes control commands for different usage scenarios.

[0028] Optionally, controlling the illuminated luggage rack to light up the corresponding color according to the LIN signal of the application scenario includes:

[0029] In welcoming, disarming, and remote car finding scenarios, the lights illuminate according to the corresponding colors;

[0030] In a fortified scenario, the lights illuminate according to the corresponding colors;

[0031] In each scenario, it is necessary to receive the corresponding LIN signal for the application scenario in order to complete the light emission task in each scenario based on the received LIN signal.

[0032] Optionally, the step of completing the illumination task for each scene based on the received LIN signal includes:

[0033] In a fortified scenario, the corresponding white light flashes at least once;

[0034] In the scenarios of welcoming guests, disarming security, and remotely finding the car, multiple colors will flash in a cycle for a predetermined duration.

[0035] Optionally, the step of turning off the illuminated luggage racks includes:

[0036] While the roof rack is illuminated, the vehicle's power is switched to the non-OFF position, and the roof rack lights turn off.

[0037] After the luggage rack is activated and lit in the first mode, take three breaths to turn off the luggage rack light;

[0038] Once the luggage rack is activated and lit in the second mode, a timer will start, and the luggage rack light will turn off after 35 seconds.

[0039] The present invention also provides a control device for a light-emitting vehicle luggage rack based on LIN communication, comprising:

[0040] The confirmation module is used to confirm whether the signal transmission channel is open or closed, and to send the LIN signal for the application scenario when the signal transmission channel is open.

[0041] The control module is used to control the corresponding color light on the luggage rack to light up according to the LIN signal received from the application scenario;

[0042] The turn-off module is used to turn off the lit luggage racks.

[0043] This invention discloses a LIN communication-based control method for an illuminated vehicle roof rack. The method involves confirming the opening or closing of a signal transmission channel, and when the signal transmission channel is open, sending a LIN signal indicating the application scenario. Based on the received LIN signal, the method controls the corresponding color light on the roof rack to illuminate, and then turns off the illuminated roof rack accordingly. This signal-controlled opening and closing of the illuminated roof rack is simple to operate. Through data transmission via the LIN bus, wireless communication between the vehicle and the roof rack is achieved, enabling automated control of the roof rack. Furthermore, this control method is stable and reliable, and also improves safety during nighttime driving.

[0044] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 A flowchart illustrating the control method of the luminous vehicle luggage rack based on LIN communication in an embodiment of the present invention is shown.

[0047] Figure 2 This diagram illustrates the signal control method of the luminous vehicle luggage rack based on LIN communication in an embodiment of the present invention. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0049] like Figure 1 As shown, this invention provides a control method for a light-emitting vehicle luggage rack based on LIN communication, the method comprising:

[0050] Step S10: Confirm the opening or closing of the signal transmission channel, and send the LIN signal for the application scenario when the signal transmission channel is open. It should be noted that the control unit of the vehicle roof rack and the main control unit on the vehicle are connected via a LIN bus. The control unit can be a microcontroller or other control device with LIN communication capabilities. The control unit is connected to the screen, and the signal transmission setting function is turned on or off by clicking the screen. It also provides feedback on whether this is successfully turned on or off to the screen host. If turned on, a LIN signal is transmitted via the LIN bus to illuminate the roof rack. Additionally, a "lit roof rack" setting can be configured on / off on the large screen host. Furthermore, the main control unit controls the opening or closing of the signal transmission channel. The main control unit is also connected to the screen to facilitate feedback on whether the signal transmission channel is on or off, and to facilitate the opening or closing of the signal channel between the main control unit and the main control unit. The main control unit confirms whether the transmission channel on the control unit and the roof rack is on or off to facilitate the next control operation, namely, controlling the illumination of the roof rack.

[0051] In one embodiment, confirming the opening or closing of the signal transmission channel includes:

[0052] Upon initial power-on, the illuminated roof rack will automatically open, and this operation is effective only when the vehicle's power is ON. Specifically, after the vehicle rolls off the production line and is powered on for the first time, the "illuminated roof rack" is set to "on" by default.

[0053] Sending a status signal for the illuminated luggage rack. By sending the "on" status signal of the illuminated luggage rack to the main screen, users can further understand the next operational status of the illuminated luggage rack by viewing the settings on the main screen.

[0054] Upon receiving the operating status signal from the illuminated luggage rack and confirming its on state, the system continuously sends relevant LIN signals. Specifically, the control unit sends the signal "LightedRoofRackStatusFeedback=ON" to the large-screen host, and the large-screen host settings display "On." This allows for a clear understanding of the operating status of the illuminated luggage rack, thus ensuring the entire signal channel is active.

[0055] In one embodiment, the confirmation of opening or closing the signal transmission channel further includes:

[0056] If the illuminated roof rack is open, and the opening operation is effective when the vehicle power is ON, a signal indicating this setting is sent if the setting status is OFF. When the illuminated roof rack is "Open," if it is set to "OFF" in the main screen unit, the main screen unit sends DVD_SetLightedRoofRackStatus=OFF to the control unit. The control unit receives this setting status signal and transmits it to the roof rack, causing it to close. At this time, the control unit also updates the operating status of the illuminated roof rack from "Open" to "Off." This status signal is then fed back to confirm that the setting status is OFF. After updating the setting, the control unit immediately sends the signal LightedRoofRackStatusFeedback=OFF to the main screen unit, which then updates the display status to "Off." This ensures that the entire signal channel is closed.

[0057] In one embodiment, the confirmation of opening or closing the signal transmission channel further includes:

[0058] If the illuminated roof rack is closed, the activation operation is effective when the vehicle power is ON.

[0059] If the setting status is "On", a signal indicating this setting status is sent. When the "Lighted Roof Rack" is "Off", if it is set to "On" in the large screen host, the large screen host sends DVD_SetLightedRoof RackStatus=ON to the control unit. Upon receiving this setting status signal, the control unit sends the signal to execute the on function, and updates the operating status of the lit roof rack from off to on. The control unit then feeds back this status signal to confirm that the setting status is "On". In other words, after updating the settings, the control unit immediately sends the signal LightedRoofRackStatusFeedback=ON to the large screen host. The large screen host, upon receiving the setting signal from the control unit, updates the display status to "On", thus making the entire signal channel active.

[0060] In one embodiment, the confirmation of opening or closing the signal transmission channel further includes:

[0061] If the vehicle power is switched from ON to OFF, the current roof rack setting will be remembered.

[0062] The system sends a LIN setting status signal to the illuminated roof rack. After the vehicle is powered back on, the system sends the memorized illuminated roof rack setting status. Specifically, when the vehicle power switches from ON to OFF, the control unit memorizes the current "illuminated roof rack" (on / off) setting status and sends a LIN setting status signal to the illuminated roof rack. After the vehicle is powered back on, the control unit sends the memorized setting status to the large screen host for display.

[0063] If the vehicle experiences a power outage, the current roof rack settings are not remembered. Upon power restoration, the illuminated roof rack will default to the "on" state. Specifically, when the vehicle disconnects the battery power, the control unit does not remember the settings. After the battery is powered back on, the control unit must send the default "illuminated roof rack (on)" setting (LightedRoofRackStatusFeedback=Startup) to the main screen unit. Furthermore, the main screen unit does not remember the illuminated roof rack function settings.

[0064] Step S20: Based on the received LIN signal for the application scenario, control the corresponding color light on the luggage rack to illuminate. Different application scenario commands on the screen illuminate the corresponding color of the luggage rack. The illuminated luggage rack can be remotely controlled to turn on or off, making operation simple. Data transmission via the LIN bus enables wireless communication between the vehicle and the luggage rack, achieving automated control of the luggage rack. This control method is stable and reliable, and also improves safety during nighttime driving.

[0065] In one embodiment, controlling the corresponding color light on the luggage rack to illuminate based on the received LIN signal of the application scenario includes:

[0066] The vehicle power status signal is sent to the illuminated roof rack according to a predetermined cycle, including sending a valid OFF signal for the vehicle power. Specifically, during the roof rack illumination period, if a new trigger command is received and the illumination mode is different, the mode is switched via LRR (long-range radar) control, and the timing restarts; if the illumination mode is the same, the current mode is maintained, and the timing restarts. When the vehicle power is in the OFF position, the LIN signal sent by the control unit is received: Power Status = OFF.

[0067] The illuminated luggage rack illuminates in the corresponding color according to the application scenario. Upon receiving the signal: LightedRoofRackStatus=ON&OrderInformation=Unlock||WelcomeON||Search Car, the illuminated luggage rack will illuminate according to the predetermined color. Alternatively, upon receiving the signal: LightedRoofRackStatus=ON&OrderInformation=Lock, the illuminated luggage rack will illuminate according to another predetermined color.

[0068] In one embodiment, the step of illuminating the luggage rack according to the application scenario by lighting up the corresponding color includes:

[0069] In the welcome, unlock, and remote car search scenarios, the lights illuminate according to the corresponding colors. Specifically, in the welcome scenario: it receives the keyless entry signal "OrderInformation = Welcome on" and sends a LIN signal "OrderInformation = Welcome on". In the unlock scenario: it receives the keyless entry signal "OrderInformation = Unlock" and sends a LIN signal "OrderInformation = Unlock". In the remote car search scenario: it receives the keyless entry signal "OrderInformation = RKE search Car" and sends a LIN signal "OrderInformation = RKE search Car". It also sends "LightedRoofRackStatus = ON||OFF" according to the function setting status.

[0070] In armed scenarios, the roof rack illuminates according to the corresponding color. Specifically, in armed scenarios: it receives an OrderInformation = Lock signal from the keyless control system and sends a LIN signal of OrderInformation = Lock. It should be noted that in welcoming, disarming, and remote vehicle location scenarios, the roof rack illuminates using the same lighting pattern; in armed scenarios, it illuminates using a different pattern.

[0071] In each scenario, it is necessary to receive the corresponding LIN signal for the application scenario in order to complete the light emission task in each scenario based on the received LIN signal.

[0072] In one embodiment, to complete the illumination task for each scene based on the received LIN signal, the method includes:

[0073] In the armed scenario, the corresponding white light flashes at least once. Optionally, the white light in this invention flashes three times, and the duration of these three flashes can be three breaths. Of course, in the armed scenario, other colors of light can also be used, and are not limited here, such as red, yellow, etc.

[0074] In the scenarios of welcoming guests, disarming security, and remote vehicle location, multiple colors flash in a cycle for a predetermined duration. Optionally, the multiple colors in this invention flash in a cycle for a predetermined duration of 35 seconds (s). The multiple colors can be a mixture of at least two colors, such as white and yellow, or white and red, or yellow and red. In addition to these color combinations, other colors can also be combined, and of course, more than three colors can be mixed, which will not be described further.

[0075] Step S30: Turn off the illuminated luggage rack according to the usage scenario. It should be noted that the illumination switch setting is available: users can turn this function on / off via the illuminated luggage rack function on the speaker unit; the factory default setting is on.

[0076] In one embodiment, the step of turning off the lit luggage rack according to the usage scenario includes:

[0077] While the roof rack is illuminated, the vehicle's power is switched to the non-OFF position, and the roof rack lights turn off.

[0078] After the luggage rack is activated and illuminated in the first mode, the light will turn off after three breaths. Specifically, the first mode is a white light that breathes three times before turning off the luggage rack light. In an armed scenario, the luggage rack will illuminate in the first mode described above.

[0079] After the luggage rack is activated and illuminated in the second mode, a timer begins, and the lights turn off after 35 seconds. Specifically, the second mode is a breathing cycle of color changes, lasting 35 seconds. In welcome, disarming, and remote vehicle location scenarios, the luggage rack illuminates according to the aforementioned second mode.

[0080] The present invention also provides a control device for a light-emitting vehicle luggage rack based on LIN communication, comprising:

[0081] The confirmation module is used to confirm whether the signal transmission channel is open or closed, and to send the LIN signal for the application scenario when the signal transmission channel is open.

[0082] The control module is used to control the corresponding color light on the luggage rack to light up according to the LIN signal received from the application scenario.

[0083] The turn-off module is used to turn off the lit luggage racks.

[0084] It should be noted that the control unit (confirmation module) of the roof rack is connected to the vehicle's main control unit via a LIN bus. The control unit can be a microcontroller or other control device with LIN communication capabilities. A control switch for the lighting device (control illumination module) is installed on the control unit. The user can control the lighting device to turn it on and off using this switch. When the roof rack needs to turn its lighting device on or off, the vehicle's main control unit sends a corresponding command to the roof rack's control unit. The roof rack's control unit then controls the lighting device to turn on or off according to the received command. Additionally, such as... Figure 2 As shown, the main components of the LIN communication-based illuminated roof rack control method of this invention include: a keyless entry and start system (IHU), a PEPS (keyless entry and start system, consisting of a controller, a receiver in the car, and a radio frequency transmitter inside the car key), a BCM (control unit), an in-vehicle entertainment screen host, and an illuminated roof rack controller (LRR). These structures implement the method of this invention. Simply put, the keyless entry and start system first puts the car in the ON position. Then, the in-vehicle entertainment screen host sets the function of opening or closing the control signal transmission. The control unit receives the relevant signals and controls the roof rack to open or close accordingly. Feedback is provided throughout this process to ensure the relevant settings are enabled or disabled. If the roof rack is open, this status is fed back to the in-vehicle entertainment screen host, the keyless entry and start system, and the PEPS. Based on the user scenario, the keyless entry and start system sends corresponding scenario signals to the control unit, thereby illuminating the roof rack. Furthermore, the keyless entry and start system and the PEPS form the main control unit, and all signal transmission processes are performed via the LIN bus.

[0085] The above modules control the opening and closing of the illuminated roof rack via signal transmission, making operation simple. Through data transmission via the LIN bus, wireless communication between the vehicle and the roof rack is achieved, enabling automated control of the roof rack. This control method is stable and reliable, and can also improve the safety of nighttime driving.

[0086] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for a light-emitting vehicle luggage rack based on LIN communication, characterized in that, The method includes: Confirm whether the signal transmission channel is turned on or off, and send the LIN signal for the application scenario when the signal transmission channel is turned on; The corresponding color light on the luggage rack is controlled to light up according to the LIN signal received from the application scenario; Turn off the lights on the luggage racks accordingly; The step of controlling the corresponding color light on the luggage rack to light up according to the received LIN signal of the application scenario includes: The vehicle power status signal is sent to the illuminated roof rack according to a predetermined cycle, including sending a vehicle power OFF valid signal; The LIN signal for the application scenario controls the illuminated luggage rack to light up the corresponding color. The LIN signal for the application scenario includes control commands for different usage scenarios. The method of controlling the illuminated luggage rack to light up the corresponding color according to the LIN signal of the application scenario includes: In welcoming, disarming, and remote car finding scenarios, the lights illuminate according to the corresponding colors; In a fortified scenario, the lights illuminate according to the corresponding colors; In each scenario, it is necessary to receive the corresponding LIN signal for the application scenario in order to complete the light emission task in each scenario based on the received LIN signal. The method of completing the illumination task for each scene based on the received LIN signal includes: In a fortified scenario, the corresponding white light flashes at least once; In the scenarios of welcoming guests, disarming security, and remotely finding the car, multiple colors will flash in a cycle for a predetermined duration.

2. The control method for the luminous vehicle luggage rack based on LIN communication according to claim 1, characterized in that, The confirmation of opening or closing the signal transmission channel includes: Upon initial power-on, the illuminated roof rack opens automatically, and the opening operation is effective when the vehicle's power is ON. Send a signal indicating the operating status of the illuminated luggage rack; Upon receiving the operating status signal of the illuminated luggage rack and confirming that it is set to the on state, it will continuously send relevant LIN signals.

3. The control method for the luminous vehicle luggage rack based on LIN communication according to claim 1, characterized in that, The confirmation of opening or closing the signal transmission channel also includes: If the illuminated roof rack is turned on, the operation is effective when the vehicle power is ON. If the setting is off, send a signal indicating that the setting is off; Receive the signal indicating the setting status and update the setting of the illuminated luggage rack's operating status from on to off; The status signal will be fed back to confirm that the setting is off.

4. The control method for the luminous vehicle luggage rack based on LIN communication according to claim 1, characterized in that, The confirmation of opening or closing the signal transmission channel also includes: If the illuminated roof rack is closed, the activation operation is effective when the vehicle power is ON. If the setting is enabled, send a signal indicating that the setting is enabled; Upon receiving the signal indicating the setting status, the operating status of the illuminated luggage rack is updated from off to on; The status signal is fed back to confirm that the setting is enabled.

5. The control method for the luminous vehicle luggage rack based on LIN communication according to claim 1, characterized in that, The confirmation of opening or closing the signal transmission channel also includes: If the vehicle power is switched from ON to OFF, the current roof rack setting will be remembered. Send the LIN setting status signal to the illuminated roof rack. After the vehicle is powered back on, send the remembered illuminated roof rack setting status. If the vehicle loses power, the current roof rack settings will not be remembered. After power is restored, the illuminated roof rack will be turned on by default.

6. The control method for the luminous vehicle luggage rack based on LIN communication according to claim 1, characterized in that, The step of turning off the lit luggage racks includes: While the roof rack is illuminated, the vehicle's power is switched to the non-OFF position, and the roof rack lights turn off. After the luggage rack is activated and lit in the first mode, take three breaths to turn off the luggage rack light; Once the luggage rack is activated and lit in the second mode, a timer will start, and the luggage rack light will turn off after 35 seconds.

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