Projection pedal tail door opening and closing device and method, electronic equipment and storage medium

Abstract

The invention belongs to the technical field of vehicle control, and particularly relates to a projection pedal tail door opening and closing device and method, electronic equipment and a storage medium. The device comprises a light sensation kicking sensor and a PLG control system. The PLG control system is connected with an LIN interface of the light sensation kicking sensor through LIN communication, the PLG control system is connected with the electric supporting rod, the pull-in lock and the inner switch through hard wires, the PLG control system is connected with the keyless system and the central gateway through B-CAN communication, and the PLG control system is connected with the tail door. The projection type foot-operated tail door switch based on the private LIN communication protocol can support effective recognition and visual interaction of foot-operated actions of a user, and the problems that a capacitive foot-operated sensor is low in action recognition rate, not obvious in user perception and inconvenient to operate are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle control, and in particular relates to a projection foot-operated tailgate switch device, method, electronic device and storage medium based on a LIN communication protocol. Background Art

[0002] The capacitive kick sensors on the market currently have problems with insensitive recognition of foot sweeping movements and poor convenience of human-computer interaction. Based on this, it is urgent to develop a new method and device for non-contact opening of the rear tailgate of a car by stepping on the projection cursor. However, the following difficulties were found in the actual development process of the projection door opening technology: 1. It is difficult for the projection door opening module to effectively identify the stepping action, and it is difficult to determine the effective stepping range, which is prone to false touches and frequent door openings; 2. It is necessary to define the dormant wake-up function and strategy of the projection door opening module in the vehicle network environment, as well as the active wake-up function and strategy of the projection door opening module in the dormant environment of the vehicle. Summary of the invention

[0003] In view of the above problems, the present disclosure provides a projection foot-operated tailgate switch device, the device comprising a light-sensing foot-operated sensor and a PLG control system;

[0004] The PLG control system is connected to the LIN interface of the light-sensing kick sensor through LIN communication, the PLG control system is connected to the electric strut, the suction lock and the internal switch through hard wires, the PLG control system is connected to the keyless system and the central gateway through B-CAN communication, and the PLG control system is connected to the tailgate.

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

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

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

[0008] The present disclosure also provides a projection foot-operated tailgate opening and closing method, the method comprising:

[0009] Wake up the light-sensing kick sensor;

[0010] Check whether the key is near the vehicle, and send the query result of the key being near the vehicle to the light-sensing kick sensor in the form of a LIN signal;

[0011] Turn on the stepping cursor of the optical kick sensor according to the received LIN signal;

[0012] Step on the stepping cursor to generate a stepping LIN signal and send it to the PLG control system;

[0013] The tailgate status is determined based on the LIN signal, and the tailgate is opened or closed based on the status.

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

[0015] Confirm whether 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, determining whether the key is close to the vehicle;

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

[0018] Preferably, judging the tailgate state according to the stepping LIN signal includes:

[0019] Determine whether there is effective stepping action;

[0020] If yes, 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, the tailgate state is determined.

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

[0023] If the tailgate is in the open state, determine whether there is an effective stepping action;

[0024] If yes, the OKS projection will turn off for a preset time and then light up to determine again whether there is a valid stepping action;

[0025] If there is an effective 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 vehicle speed, determining whether the tailgate is in an open state;

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

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

[0029] If the tailgate is in a closed state, determining whether the tailgate is in a moving state;

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

[0031] If the tailgate is stationary, the light-sensitive kick sensor detects the door closing action.

[0032] The present disclosure also provides an electronic device, comprising:

[0033] Processor and memory;

[0034] The processor calls the computer program stored in the memory to execute any one of the above-mentioned projection foot-operated tailgate switch methods.

[0035] The present disclosure also provides a computer-readable storage medium,

[0036] The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor is enabled to execute any one of the above-mentioned projection foot-operated tailgate opening and closing methods.

[0037] The present disclosure has the following beneficial effects:

[0038] The purpose of the present invention is to provide a projection-type foot-operated tailgate switch based on a private LIN communication protocol, which can support effective recognition and visual interaction of user foot movements, and solve the problems of low recognition rate of capacitive foot-operated sensors, unclear user perception, and inconvenient operation.

[0039] Other features and advantages of the present disclosure will be described in the following description, and partly become apparent from the description, or be understood by implementing the present disclosure. The purpose and other advantages of the present disclosure can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 A diagram showing a projection foot-operated tailgate switch device in an embodiment of the present disclosure is shown;

[0042] Figure 2 A diagram showing a projection foot-operated tailgate opening and closing method in an embodiment of the present disclosure is shown;

[0043] Figure 3 A schematic diagram of waking up the light-sensing kick sensor in an embodiment of the present disclosure is shown;

[0044] Figure 4 A tailgate opening flow chart is shown in an embodiment of the present disclosure;

[0045] Figure 5 A tailgate closing flow chart is shown in an embodiment of the present disclosure;

[0046] Figure 6 A diagram of an electronic device in an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0047] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as being limited to the examples set forth herein; on the contrary, these embodiments are provided so that the present disclosure will be more comprehensive and complete, and the concepts of the example embodiments are fully conveyed to those skilled in the art. The described features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known technical solutions are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0048] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware units or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0049] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the steps. For example, some steps may be decomposed, while some steps may be combined or partially combined, so the actual execution order may change according to the actual situation.

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

[0051] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or sub-modules is not necessarily limited to those steps or sub-modules explicitly listed, but may include other steps or sub-modules not explicitly listed or inherent to these processes, methods, products, or apparatuses.

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

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

[0054] S1, wake up the light-sensing kick sensor;

[0055] S2, query whether the key is close to the vehicle, and send the query result of the key being close to the vehicle to the light sensing kick sensor in the form of a LIN signal;

[0056] S3, turning on the stepping cursor of the optical kick sensor according to the received LIN signal;

[0057] S4, step on the stepping cursor, generate a stepping LIN signal, and send it to the PLG control system (Power Lift-Gate-electric tailgate);

[0058] S5. Determine the tailgate status according to the stepping LIN signal, and open or close the tailgate according to the tailgate status.

[0059] In this embodiment, the reason for setting S1 is: in order to effectively define the stepping range and reduce the problem of frequent door opening caused by accidental touch, the light-sensing foot kick sensor is set in sleep mode. Therefore, before the door opening operation, the light-sensing foot kick sensor needs to be awakened.

[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 vehicle speed, determine whether the key is near the vehicle under the premise that the key is not in the vehicle;

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

[0064] A4. If the key is close to the vehicle, the whole vehicle will be disarmed, the OKS projection light will be turned on, and the TOF (Time of Flight) sensor will be turned on.

[0065] In step A1, the first vehicle speed is exemplarily 3 km / h. The first vehicle speed may also be set to other values, such as 1 km / h, 2 km / h, 4 km / h, etc. The present disclosure does not impose any specific limitation on the 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 optical kick sensor, that is, the optical kick sensor is still in a dormant state and has not awakened.

[0067] When the vehicle is disarmed, the light-sensing kick sensor lights up and starts to recognize the user's foot movement. When the user steps on the cursor projected on the ground, the light-sensing kick sensor sends the effective action to the PLG control system. The PLG control system determines that the tailgate is closed and opens the tailgate after comprehensively judging the situation of the vehicle. During the movement of the tailgate, if an effective stepping action is recognized, the stepping cursor remains stationary for 1-2 seconds, and the PLG control system controls the tailgate to stop moving. The door opening workflow is as follows: Figure 4 As shown:

[0068] B1. Make sure the car key is outside the car;

[0069] B2, judging 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, close OKS and execute step B2 again;

[0071] If the vehicle speed is less than or equal to the first vehicle speed, the OKS (Optical Kick Sensor) projection lamp and the TOF sensor are both turned on, and step B4 is executed;

[0072] B4. Determine whether there is a legal stepping action;

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

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

[0075] B6, judging 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 is closed and the tailgate does not move, execute step B2 again;

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

[0078] B8. Determine whether the tailgate is in a closed state;

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

[0080] If the tailgate is not in the closed state, execute step B10;

[0081] B10, determine whether the tailgate is in motion;

[0082] B11. If the tailgate is in motion, stop it;

[0083] If the tailgate is not in motion, the system recognizes the door closing action.

[0084] When the tailgate is open, the user steps on the cursor, and the light-sensing kick sensor sends an effective recognition signal to the PLG control system. The PLG control system controls the tailgate to close after comprehensively judging the status of the vehicle. When the tailgate is not opened to the set height, it recognizes the effective stepping action, and the PLG control system controls the tailgate to move in the opposite direction before it stops. Figure 5 As shown:

[0085] C1. Based on the normal operation of OKS, determine whether there is legal trampling;

[0086] C2, if there is no legal trampling, execute step C1 again;

[0087] If there is legal trampling, the OKS projection lamp turns off for 1 second and then turns on, and executes step C3;

[0088] C3. Determine whether there is legal trampling;

[0089] C4, if there is no legal trampling, execute step C1 again;

[0090] If there is legal trampling, execute 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, execute step C7;

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

[0094] C7, determine whether the rear tailgate is open;

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

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

[0097] C9, judging 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, execute step C1;

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

[0100] In the present disclosure, in order to reduce the power consumption of the light-sensing kick sensor, the light-sensing kick sensor is automatically turned off after being turned on for a period of time. When the tailgate is closed, the light-sensing kick sensor waits for a first preset time before turning off, and when the tailgate is open, the light-sensing kick sensor waits for a second preset time before turning off.

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

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

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

[0104] The PLG control system is connected to the LIN interface of the light-sensing kick sensor through LIN communication, the PLG control system is connected to the electric strut, the suction lock and the internal switch through hard wires, the PLG control system is connected to the keyless system and the central gateway through B-CAN communication, and the PLG control system is connected to the tailgate.

[0105] Specifically, the keyless system is connected to an external switch via a hard wire;

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

[0107] Specifically, the light-sensing kick sensor includes a motor control unit, which is connected to the LED via pulse width modulation, and is connected to the TOF via RX or TX.

[0108] In this device, PLG needs to receive CAN signals from PEPS and CGW at the same time to wake up the light-sensing kick sensor.

[0109] like Figure 6As shown, corresponding to the projection foot-operated tailgate switch method based on the LIN communication protocol provided above, the present disclosure also provides a projection foot-operated tailgate switch device based on the LIN communication protocol. Since the embodiment of the device is similar to the above method embodiment, the description is relatively simple. For relevant parts, please refer to the description of the above method embodiment part. The device described below is only schematic. The device may include: a processor (processor) 1, a memory (memory) 2 and a communication bus (i.e., the above device bus) and a search engine, wherein the processor 1 and the memory 2 complete mutual communication through the communication bus and communicate with the outside through the communication interface. The processor 1 can call the logic instructions in the memory 2 to execute the projection foot-operated tailgate switch method based on the LIN communication protocol.

[0110] In addition, the logic instructions in the above-mentioned memory 2 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present disclosure is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: a storage chip, a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a disk or an optical disk, and other media that can store program codes.

[0111] On the other hand, an embodiment of the present disclosure further provides a processor-readable storage medium, on which a computer program 3 is stored. When the computer program 3 is executed by the processor 1, it is implemented to execute the projection foot-operated tailgate switch method based on the LIN communication protocol provided in the above-mentioned embodiments.

[0112] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor 1, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0113] Those skilled in the art should understand that although the present disclosure is described in detail with reference to the aforementioned embodiments, it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to make equivalent replacements for some of the technical features therein; and these modifications or replacements 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 disclosure.

Claims

1. A projection foot-operated tailgate switch device, characterized in that: The device includes a light-sensing kick sensor and a PLG control system; The PLG control system is connected to the LIN interface of the light-sensing kick sensor through LIN communication, the PLG control system is connected to the electric strut, the suction lock and the internal switch through hard wires, the PLG control system is connected to the keyless system and the central gateway through B-CAN communication, and the PLG control system is connected to the tailgate.

2. The projection foot-operated tailgate switch device according to claim 1, characterized in that: The keyless system is connected to an external switch via a hard wire; The central gateway is connected to the infotainment host via I-CAN communication.

3. The projection foot-operated tailgate switch device according to claim 1, characterized in that: The light-sensing kick sensor includes a motor control unit, which is connected to an LED via a data transmission line outside a PCB board, controls the LED via a PWM wave, and is connected to a time-of-flight sensor via a data transmission line outside a PCB board.

4. A projection foot-operated tailgate opening and closing method, characterized in that: The method comprises: Wake up the light-sensing kick sensor; Check whether the key is near the vehicle, and send the query result of the key being near the vehicle to the light-sensing kick sensor in the form of a LIN signal; Turn on the stepping cursor of the optical kick sensor according to the received LIN signal; Step on the stepping cursor to generate a stepping LIN signal and send it to the PLG control system; The tailgate status is determined based on the LIN signal, and the tailgate is opened or closed based on the status.

5. The projection foot-operated tailgate opening and closing method according to claim 4, characterized in that: The wake-up light-sensing kick sensor comprises: Confirm whether the vehicle speed is less than or equal to the first vehicle speed; Based on the vehicle speed being less than or equal to the first vehicle speed, determining whether the key is close to the vehicle; If the key is not near the vehicle, a LIN signal is sent to wake up the light-sensitive kick sensor.

6. The projection foot-operated tailgate opening and closing method according to claim 4, characterized in that: Determine the tailgate status based on the LIN signal of stepping on, including: Determine whether there is effective stepping action; If yes, 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, the tailgate state is determined.

7. The projection foot-operated tailgate opening and closing method according to claim 6, characterized in that: The step of opening and closing the tailgate according to the tailgate state includes: If the tailgate is in the open state, determine whether there is an effective stepping action; If yes, the OKS projection will turn off for a preset time and then light up to determine again whether there is a valid stepping action; If there is an effective 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 vehicle speed, determining whether the tailgate is in an open state; If the tailgate is open, close it.

8. The projection foot-operated tailgate opening and closing method according to claim 6, characterized in that: The step of opening and closing the tailgate according to the tailgate state includes: If the tailgate is in a closed state, determining whether the tailgate is in a moving state; If the tailgate is in motion, stop the movement; If the tailgate is stationary, the light-sensitive kick sensor detects the door closing action.

9. An electronic device, characterized in that: include: Processor and memory; The processor calls the computer program stored in the memory to execute the projection foot-operated tailgate switch method according to any one of claims 3 to 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor is enabled to execute the projection foot-operated tailgate switch method according to any one of claims 3 to 8.

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