Projection foot-operated tailgate switch device, method, electronic device, and storage medium

Abstract

This disclosure belongs to the field of vehicle control technology, and specifically relates to a projection-type foot-operated tailgate switch device, method, electronic device, and storage medium. The device includes a photosensitive foot kick sensor and a PLG control system; the PLG control system is connected to the LIN interface of the photosensitive foot kick sensor via LIN communication; the PLG control system is connected to the electric strut, magnetic lock, and internal switch via hard wiring; the PLG control system is connected to the keyless entry system and central gateway via B-CAN communication; and the PLG control system is connected to the tailgate. The purpose of this disclosure is to provide a projection-type foot-operated tailgate switch based on a proprietary LIN communication protocol, which can support effective recognition and visual interaction of user foot pedal actions, solving the problems of low action recognition rate, unclear user perception, and inconvenient operation associated with capacitive foot kick sensors.

Description

Technical Field

[0001] This disclosure belongs to the field of vehicle control technology, and specifically relates to a projection foot pedal tailgate switch device, method, electronic device and storage medium based on the LIN communication protocol. Background Technology

[0002] To address the issues of insensitive foot-scanning motion recognition and poor human-machine interaction in current capacitive foot-scanning sensors on the market, there is an urgent need to develop a novel method and device for non-contact opening of car tailgates using a projected cursor. However, the following difficulties were encountered during the actual development of the projection-based door opening technology: 1. The projection-based door opening module struggles to effectively recognize foot-scanning motions and determine the effective foot-scanning range, leading to accidental touches and frequent door openings; 2. It is necessary to define the sleep / wake-up functions and strategies of the projection-based door opening module in a vehicle network environment, as well as the active wake-up functions and strategies of the projection-based door opening module in a vehicle sleep environment. Summary of the Invention

[0003] To address the aforementioned issues, this disclosure provides a projection foot pedal tailgate switch device, the device comprising a light-sensitive foot kick sensor and a PLG control system;

[0004] The PLG control system is connected to the LIN interface of the light-sensitive kick sensor via LIN communication. The PLG control system is also connected to the electric strut, magnetic lock, and internal switch via hard wiring. Furthermore, the PLG control system is connected to the keyless system and central gateway via B-CAN communication. Finally, the PLG control system is connected to the tailgate.

[0005] Preferably, the keyless system is connected to an external switch via a hardwired connection;

[0006] The central gateway is connected to the infotainment host via I-CAN communication.

[0007] Preferably, the light-sensitive kick sensor includes a motor control unit, which is connected to the LED via pulse width modulation and to the TOF via RX or TX.

[0008] This disclosure also proposes a method for projecting a foot pedal tailgate switch, the method comprising:

[0009] Activate the light-sensitive foot kick sensor;

[0010] The system checks if the key is near the vehicle and sends the result of the key being near the vehicle to the light-sensitive kick sensor via a LIN signal.

[0011] The light-sensitive foot kick sensor is activated to display the step cursor based on the received LIN signal;

[0012] Stepping on the cursor generates a stepping LIN signal, which is then sent to the PLG control system.

[0013] The tailgate status is determined by the LIN signal from the foot pedal, and the tailgate is opened or closed accordingly.

[0014] Preferably, the wake-up light-sensing kick sensor includes:

[0015] Confirm that the vehicle speed is less than or equal to the first vehicle speed;

[0016] Based on the vehicle speed being less than or equal to the first vehicle speed, determine whether the key is near the vehicle;

[0017] If the key is not near the vehicle, a LIN signal is sent to activate the light-sensitive kick sensor.

[0018] Preferably, determining the tailgate status based on the LIN pedal signal includes:

[0019] Determine if there is a valid pedaling motion;

[0020] If so, OKS sends a valid identification signal and uses the PLG control system again to determine whether the vehicle speed is less than or equal to the first vehicle speed.

[0021] If the vehicle speed is less than or equal to the first vehicle speed, then determine the tailgate status.

[0022] Preferably, opening and closing the tailgate according to its state includes:

[0023] If the tailgate is open, determine if there was a valid stepping action;

[0024] If so, the OKS projection will turn on after a predetermined time when it is turned off, and then check again whether there is a valid stepping action.

[0025] If there is a valid pedaling action, the PLG is used to determine whether the vehicle speed is less than or equal to the first vehicle speed;

[0026] If the vehicle speed is less than the first speed, determine whether the tailgate is open.

[0027] If the tailgate is open, close the tailgate.

[0028] Preferably, opening and closing the tailgate according to its state includes:

[0029] If the tailgate is closed, determine whether the tailgate is in motion;

[0030] If the tailgate is in motion, then stop moving;

[0031] If the tailgate is stationary, the light-sensitive foot-activated sensor will detect the closing action.

[0032] This disclosure also proposes an electronic device, comprising:

[0033] Processor and memory;

[0034] The processor invokes the computer program stored in the memory to execute the projection foot pedal tailgate opening and closing method described above.

[0035] This disclosure also proposes a computer-readable storage medium.

[0036] The computer-readable storage medium stores a computer program that, when executed by a processor, enables the processor to perform any of the above-described projection foot pedal tailgate opening and closing methods.

[0037] This disclosure has the following beneficial effects:

[0038] The purpose of this disclosure is to provide a projection-type foot pedal tailgate switch based on a proprietary LIN communication protocol, which can support effective recognition and visual interaction of user foot pedal actions, and solve the problems of low action recognition rate, unclear user perception, and inconvenient operation of capacitive foot kick sensors.

[0039] Other features and advantages of this disclosure will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the disclosure. The objects and other advantages of this disclosure may be realized and obtained by means of the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this disclosure 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 this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This diagram illustrates the projection foot pedal tailgate switch device in an embodiment of this disclosure.

[0042] Figure 2 This diagram illustrates a method for projecting a foot pedal tailgate switch in an embodiment of this disclosure.

[0043] Figure 3 This diagram illustrates the wake-up light-sensing kick sensor in an embodiment of this disclosure.

[0044] Figure 4 This diagram illustrates the tailgate opening process in an embodiment of the present disclosure.

[0045] Figure 5 This diagram illustrates the tailgate closing process in an embodiment of the present disclosure.

[0046] Figure 6 A diagram of an electronic device according to an embodiment of this disclosure is shown. Detailed Implementation

[0047] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this disclosure more comprehensive and complete, and to fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a full understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced with one or more of the specific details omitted, or other methods, components, apparatus, steps, etc., can be employed. In other instances, well-known technical solutions are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0048] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware units or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0049] The flowchart shown in the attached diagram is merely an illustrative example and does not necessarily include all steps. For example, some steps may be broken down, while others may be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0050] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0051] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or device that includes a series of steps or sub-modules is not necessarily limited to those steps or sub-modules that are explicitly listed, but may include other steps or sub-modules that are not explicitly listed or that are inherent to such process, method, product, or device.

[0052] The purpose of this application is to provide a projection-type foot pedal tailgate switch based on a proprietary LIN communication protocol, which can support effective recognition and visual interaction of user foot pedal actions, and solve the problems of low action recognition rate, unclear user perception, and inconvenient operation of capacitive foot kick sensors.

[0053] like Figure 2 As shown, this disclosure proposes a projection foot pedal tailgate switch method based on the LIN communication protocol, the method comprising:

[0054] S1. Activate the light-sensitive foot kick sensor;

[0055] S2. Check if the key is near the vehicle and send the query result of the key being near the vehicle to the light-sensitive kick sensor via a LIN signal;

[0056] S3. Activate the step cursor of the light-sensitive foot kick sensor based on the received LIN signal;

[0057] S4. Step on the cursor to generate a step LIN signal and send it to the PLG control system (Power Lift-Gate-Electric Tailgate);

[0058] S5. Determine the tailgate status based on the LIN pedal signal, and open or close the tailgate accordingly.

[0059] In this embodiment, the reason for setting S1 is: in order to effectively define the stepping range and reduce accidental touches that cause frequent door openings, the light-sensitive kick sensor is set to a sleep mode. Therefore, the light-sensitive kick sensor needs to be woken up before the door opening operation.

[0060] like Figure 3 As shown, S1, the wake-up light-sensing kick sensor, includes:

[0061] A1. Confirm whether the vehicle speed is less than or equal to the first vehicle speed;

[0062] A2. If the vehicle speed is less than or equal to the first speed, determine whether the key is near the vehicle if the key is not inside the vehicle.

[0063] A3. If the key is not near the vehicle, the entire vehicle will be armed, and OKS will not activate.

[0064] A4. If the key is near the vehicle, the entire vehicle will be unlocked, the OKS projection light will turn on, and the TOF (Time of Flight) sensor will be activated.

[0065] In step A1, the first vehicle speed is 3 km / h for example. The first vehicle speed can also be set to other values, such as 1 km / h, 2 km / h, 4 km / h, etc. This disclosure does not impose specific restrictions on its value.

[0066] In step A1, when the PLG control system determines that the vehicle speed is greater than the first vehicle speed, the PLG control system does not send a wake-up LIN signal to the light-sensitive kick sensor, that is, the light-sensitive kick sensor is still in a dormant state and has not been awakened.

[0067] When the vehicle is disarmed, the light-sensitive foot kick sensor illuminates and begins to recognize the user's foot pedal action. The user steps on the cursor projected onto the ground. The light-sensitive foot kick sensor sends a valid action to the PLG control system. The PLG control system determines that the tailgate is closed and, after comprehensively assessing the overall vehicle status, opens the tailgate. During the tailgate's movement, if a valid pedal action is detected (i.e., the cursor is pressed and held still for 1-2 seconds), the PLG control system pauses the tailgate's movement. The tailgate opening process is as follows: Figure 4 As shown:

[0068] B1. Confirm that the car keys are outside the vehicle;

[0069] B2. Determine whether the vehicle speed is less than or equal to the first vehicle speed through the PLG control system;

[0070] B3. If the vehicle speed is greater than the first speed, then close OKS and execute step B2 again.

[0071] If the vehicle speed is less than or equal to the first vehicle speed, both the OKS (Optical Foot Sensor) projection light and the TOF sensor will turn on, and step B4 will be executed.

[0072] B4. Determine if there is a legal trampling action;

[0073] B5. If there is no legal stepping action, OKS will not send a valid identification signal and will execute step B4 again;

[0074] If there is a legitimate stepping action, OKS sends a valid recognition signal and executes step B6;

[0075] B6. Determine whether the vehicle speed is less than or equal to the first vehicle speed through the PLG control system;

[0076] B7. If the vehicle speed is greater than the first speed, OKS will close and the tailgate will not move. Then, repeat step B2.

[0077] If the vehicle speed is less than or equal to the first vehicle speed, proceed to step B8;

[0078] B8. Determine if the tailgate is closed;

[0079] B9. If the tailgate is closed, open the tailgate;

[0080] If the tailgate is not closed, proceed to step B10;

[0081] B10. Determine if the tailgate is in motion;

[0082] B11. If the tailgate is in motion, then bring the tailgate to a standstill;

[0083] If the tailgate is not in motion, the system will recognize the closing action.

[0084] With the tailgate open, when the user steps on the indicator light, the light-sensitive foot kick sensor sends a valid recognition signal to the PLG control system. The PLG control system then comprehensively assesses the vehicle's overall status and controls the tailgate to close. If the tailgate is not opened to the set height and a valid step is detected, the PLG control system controls the tailgate to move in the opposite direction to its previous position. The closing process is as follows: Figure 5 As shown:

[0085] C1. Based on OKS working normally, determine whether there is a legal trampling;

[0086] C2. If there is no legal trampling, then repeat step C1.

[0087] If there is a legitimate stepping, the OKS projection light will turn off for 1 second and then turn on again, and step C3 will be executed;

[0088] C3. Determine if there was legal trampling;

[0089] C4. If there is no legal trampling, then repeat step C1.

[0090] If there is a legitimate trampling incident, proceed to step C5;

[0091] C5. Determine whether the vehicle speed is less than or equal to the first vehicle speed through the PLG control system;

[0092] C6. If the vehicle speed is less than or equal to the first vehicle speed, then proceed to step C7.

[0093] If the vehicle speed is greater than the first speed limit, OKS closes, the tailgate does not move, and step C9 is executed.

[0094] C7. Determine if the tailgate is open;

[0095] C8. If the tailgate is open, close the tailgate.

[0096] If the tailgate is not opened, OKS will recognize the opening action;

[0097] C9. Determine whether the vehicle speed is less than or equal to the first vehicle speed through the PLG control system;

[0098] C10. If the vehicle speed is less than or equal to the first vehicle speed, then proceed to step C1.

[0099] If the vehicle speed is greater than the first speed, proceed to step C9 again.

[0100] In this disclosure, to reduce the power consumption of the light-sensitive foot kick sensor, the sensor automatically turns off after being turned on for a period of time. When the tailgate is closed, the light-sensitive foot kick sensor turns off after a first preset time; when the tailgate is open, the light-sensitive foot kick sensor turns off after a second preset time.

[0101] In this embodiment of the disclosure, the first preset time is 30 seconds, and the disclosure does not limit the specific value of the first preset time.

[0102] In this embodiment of the disclosure, the second preset time is 3 minutes, and the disclosure does not limit the specific value of the second preset time.

[0103] like Figure 1 As shown, this disclosure also proposes a projection foot pedal tailgate switch device based on the LIN communication protocol, characterized in that the device includes a light-sensitive foot kick sensor and a PLG control system;

[0104] The PLG control system is connected to the LIN interface of the light-sensitive kick sensor via LIN communication. The PLG control system is also connected to the electric strut, magnetic lock, and internal switch via hard wiring. Furthermore, the PLG control system is connected to the keyless system and central gateway via B-CAN communication. Finally, the PLG control system is connected to the tailgate.

[0105] Specifically, the keyless system is connected to the external switch via a hardwired connection;

[0106] The central gateway is connected to the infotainment host via I-CAN communication.

[0107] Specifically, the light-sensitive kick sensor includes a motor control unit, which is connected to an LED via pulse width modulation and to a time-of-flight (TOF) sensor via RX or TX.

[0108] In this device, the PLG needs to receive CAN signals from both PEPS and CGW simultaneously to wake up the light-sensitive kick sensor.

[0109] like Figure 6As shown, corresponding to the above-described projection foot-operated tailgate switch method based on the LIN communication protocol, this disclosure also provides a projection foot-operated tailgate switch device based on the LIN communication protocol. Since the embodiment of this device is similar to the above-described method embodiment, the description is relatively simple. For relevant details, please refer to the description in the above-described method embodiment section. The device described below is merely illustrative. This device may include: a processor 1, a memory 2, a communication bus (i.e., the aforementioned device bus), and a lookup engine. The processor 1 and the memory 2 communicate with each other through the communication bus and communicate with external systems through a communication interface. The processor 1 can call logical instructions in the memory 2 to execute the projection foot-operated tailgate switch method based on the LIN communication protocol.

[0110] Furthermore, the logical instructions in the aforementioned memory 2 can be implemented as software functional units and sold or used as independent products, and can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this disclosure. The aforementioned storage medium includes various media capable of storing program code, such as memory chips, USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0111] On the other hand, this disclosure also provides a processor-readable storage medium storing a computer program 3, which, when executed by a processor 1, is implemented to perform the projection foot pedal tailgate switch method based on the LIN communication protocol provided in the above embodiments.

[0112] The processor-readable storage medium can be any available medium or data storage device that the processor 1 can access, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical memory (e.g., CD, DVD, BD, HVD), and semiconductor memory (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)).

[0113] Those skilled in the art should understand that, despite the detailed description of this disclosure with reference to the foregoing embodiments, 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 such 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 this disclosure.

Claims

1. A method for projecting a foot pedal tailgate switch, characterized in that, The method includes: The activation of the light-sensitive foot kick sensor includes: confirming whether the vehicle speed is less than or equal to a first vehicle speed; determining whether the key is near the vehicle based on the vehicle speed being less than or equal to the first vehicle speed; and if the key is not near the vehicle, sending a LIN signal to activate the light-sensitive foot kick sensor. The system checks if the key is near the vehicle and sends the result of the key being near the vehicle to the light-sensitive kick sensor via a LIN signal. The light-sensitive foot kick sensor is activated to display the step cursor based on the received LIN signal; Stepping on the cursor generates a stepping LIN signal, which is then sent to the PLG control system. The tailgate status is determined by the LIN signal from the foot pedal, and the tailgate is opened or closed accordingly.

2. The projection foot pedal tailgate opening and closing method according to claim 1, characterized in that, The tailgate status is determined based on the LIN signal from the pedal, including: Determine if there is a valid pedaling motion; If so, OKS sends a valid identification signal and uses the PLG control system again to determine whether the vehicle speed is less than or equal to the first vehicle speed. If the vehicle speed is less than or equal to the first vehicle speed, then determine the tailgate status.

3. The projection foot pedal tailgate opening and closing method according to claim 2, characterized in that, The step of opening and closing the tailgate according to its status includes: If the tailgate is open, determine if there was a valid stepping action; If so, the OKS projection will turn on after a predetermined time when it is turned off, and then check again whether there is a valid stepping action. If there is a valid pedaling action, the PLG is used to determine whether the vehicle speed is less than or equal to the first vehicle speed; If the vehicle speed is less than the first speed, determine whether the tailgate is open. If the tailgate is open, close the tailgate.

4. The projection foot pedal tailgate opening and closing method according to claim 2, characterized in that, The step of opening and closing the tailgate according to its status includes: If the tailgate is closed, determine whether the tailgate is in motion; If the tailgate is in motion, then stop moving; If the tailgate is stationary, the light-sensitive foot-activated sensor will detect the closing action.

5. A projection foot pedal tailgate switch device for implementing any one of claims 1-4, characterized in that, The device includes a light-sensitive foot kick sensor and a PLG control system; The PLG control system is connected to the LIN interface of the light-sensitive kick sensor via LIN communication. The PLG control system is also connected to the electric strut, magnetic lock, and internal switch via hard wiring. Furthermore, the PLG control system is connected to the keyless system and central gateway via B-CAN communication. Finally, the PLG control system is connected to the tailgate.

6. The projection foot pedal tailgate switch device according to claim 5, characterized in that, The keyless system is connected to an external switch via a hardwired connection. The central gateway is connected to the infotainment host via I-CAN communication.

7. The projection foot pedal tailgate switch device according to claim 5, characterized in that, The light-sensitive kick sensor includes a motor control unit, which is connected to an LED via a data transmission line outside the PCB board and controls the LED via a PWM wave. The control unit is also connected to a time-of-flight sensor via a data transmission line outside the PCB board.

8. An electronic device, characterized in that, include: Processor and memory; The processor invokes the computer program stored in the memory to execute the projection foot pedal tailgate opening and closing method according to any one of claims 1 to 4.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, enables the processor to perform the projection foot pedal tailgate opening and closing method according to any one of claims 1 to 4.

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