Automobile tonneau cover control circuit and automobile tonneau cover

Abstract

The present application relates to the technical field of automobile accessories, and provides an automobile tonneau cover control circuit and an automobile tonneau cover. The circuit comprises: a power supply module, a signal detection module, a master control module and a driving module. The power supply module is separately and electrically connected to the signal detection module, the master control module and the driving module; the signal detection module is further electrically connected to the master control module; the master control module is further electrically connected to the driving module; the driving module is further electrically connected to a motor. The signal detection module is used for acquiring an instruction signal, and sending a control signal to the master control module on the basis of the instruction signal; the master control module is used for sending a driving signal to the driving module on the basis of the control signal; on the basis of the driving signal, the driving module is used for controlling the motor to drive the automobile tonneau cover to move. The present application automatically opens and closes tonneau covers, and improves the sense of user experience.

Description

Automobile trunk lid control circuit and automobile trunk lid TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile accessories, in particular to an automobile trunk lid control circuit and an automobile trunk lid. BACKGROUND

[0002] At present, the automobile with a no-roof compartment at the rear of the cab needs to be covered by an externally connected trunk lid above the no-roof compartment to achieve compartment sealing. Most of the automobile trunk lids on the market are manual roll-up shutters that rely on manual operation through a pull cord. The opening and closing operation is complicated, and it is inconvenient to open the trunk lid when the user is holding goods, resulting in poor user experience.

[0003] SUMMARY

[0004] Therefore, the present application aims to overcome the shortcomings of the prior art and provide an automobile trunk lid control circuit and an automobile trunk lid. The present application provides the following technical solutions:

[0005] In a first aspect, the present application provides an automobile trunk lid control circuit, which comprises a power module, a signal detection module, a main control module, and a driving module.

[0006] The power module is electrically connected to the signal detection module, the main control module, and the driving module.

[0007] The signal detection module is also electrically connected to the main control module.

[0008] The main control module is also electrically connected to the driving module.

[0009] The driving module is also electrically connected to the motor.

[0010] The signal detection module is configured to obtain an instruction signal and send a control signal to the main control module according to the instruction signal.

[0011] The main control module is configured to send a driving signal to the driving module according to the control signal.

[0012] The driving module is configured to control the motor to drive the automobile trunk lid to move according to the driving signal.

[0013] In an embodiment, the driving signal comprises a first signal or a second signal, and the driving module comprises a first switch tube, a second switch tube, a third switch tube, and a fourth switch tube.

[0014] The control end of the first switch tube is electrically connected with the master control module and the output end of the first switch tube respectively, the input end of the first switch tube is electrically connected with the power module, and the output end of the first switch tube is also electrically connected with the input end of the second switch tube and the motor;

[0015] The control end of the second switch tube is electrically connected with the master control module and the output end of the second switch tube respectively, and the output end of the second switch tube is also electrically connected with the output end of the fourth switch tube;

[0016] The control end of the third switch tube is electrically connected with the master control module and the output end of the third switch tube respectively, the input end of the third switch tube is electrically connected with the power module, and the output end of the third switch tube is also electrically connected with the input end of the fourth switch tube and the motor;

[0017] The control end of the fourth switch tube is electrically connected with the master control module and the output end of the fourth switch tube respectively, and the output end of the fourth switch tube is also grounded;

[0018] The first switch tube and the fourth switch tube are used for receiving the first signal and conducting to form a first current path, so as to control the motor to drive the automobile trunk cover to open;

[0019] The second switch tube and the third switch tube are used for receiving the first signal and conducting to form a second current path, so as to control the motor to drive the automobile trunk cover to close;

[0020] The first switch tube, the second switch tube, the third switch tube and the fourth switch tube are used for receiving the second signal and turning off, so as to control the motor to stop driving the automobile trunk cover.

[0021] In an embodiment, the circuit further comprises a Hall sensor, which is electrically connected with the master control module and the motor respectively;

[0022] The Hall sensor is used for monitoring the current motion state of the motor and generating a corresponding Hall signal, and sending the Hall signal to the master control module.

[0023] In an embodiment, the circuit further comprises a plurality of limit switches, which are electrically connected with the master control module respectively;

[0024] The plurality of limit switches are used for sending a limit signal to the master control module when any limit switch is closed;

[0025] The master control module is also used for sending the second signal to the first switch tube, the second switch tube, the third switch tube and the fourth switch tube when receiving the limit signal.

[0026] In an embodiment, the instruction signal comprises a capacitance change signal, and the signal detection module comprises a fifth switch, a sixth switch and an inductive device;

[0027] The input end of the fifth switch is electrically connected with the power module, the control end of the fifth switch is electrically connected with the power module and the inductive device respectively, and the output end of the fifth switch is electrically connected with the control end of the sixth switch;

[0028] The input end of the sixth switch is electrically connected with the main control module, and the output end and the control end of the sixth switch are grounded respectively;

[0029] The fifth switch is configured to obtain the capacitance change signal and turn on when the capacitance between the inductive device and a reference object changes;

[0030] The sixth switch is configured to turn on when the fifth switch turns on, so that the main control module obtains the control signal.

[0031] In an embodiment, the instruction signal comprises a first button signal or a second button signal, the control signal comprises an opening signal or a closing signal, and the signal detection module comprises a plurality of buttons which are electrically connected with or wirelessly connected with the main control module respectively;

[0032] The plurality of buttons are configured to send the opening signal to the main control module when the first button signal is detected;

[0033] The plurality of buttons are configured to send the closing signal to the main control module when the second button signal is detected.

[0034] In an embodiment, the main control module comprises a main control chip which is electrically connected with the Hall sensor, the plurality of limit switches and the input end of the sixth switch respectively;

[0035] The main control chip is configured to determine the current motion state of the motor according to the Hall signal when the control signal is obtained;

[0036] If the motion state is a static state, the main control chip is configured to send the first signal to the first switch and the fourth switch, or send the first signal to the second switch and the third switch;

[0037] If the motion state is a forward rotation or a reverse rotation, the main control chip is configured to send the second signal to the first switch, the second switch, the third switch and the fourth switch.

[0038] In an embodiment, the master control module comprises a master control chip, which is electrically connected with the Hall sensor and the plurality of limit switches respectively, and is electrically connected or wirelessly connected with the plurality of keys;

[0039] The master control chip is configured to determine a current motion state of the motor according to the Hall signal when the opening signal is acquired.

[0040] If the current motion state is a static state, the first signal is sent to the first switch tube and the fourth switch tube.

[0041] If the current motion state is forward rotation or reverse rotation, the second signal is sent to the first switch tube, the second switch tube, the third switch tube and the fourth switch tube respectively.

[0042] In an embodiment, the master control chip is further configured to determine a current motion state of the motor according to the Hall signal when the master control module acquires the closing signal.

[0043] If the current motion state is a static state, the first signal is sent to the second switch tube and the third switch tube.

[0044] If the current motion state is forward rotation or reverse rotation, the second signal is sent to the first switch tube, the second switch tube, the third switch tube and the fourth switch tube respectively.

[0045] In a second aspect, the application provides an automobile trunk lid, comprising the automobile trunk lid control circuit of the first aspect.

[0046] The automobile trunk lid control circuit and the automobile trunk lid provided by the application comprise a power module, a signal detection module, a master control module and a driving module. The power module is electrically connected with the signal detection module, the master control module and the driving module respectively. The signal detection module is further electrically connected with the master control module. The master control module is further electrically connected with the driving module. The driving module is further electrically connected with a motor. The signal detection module is configured to acquire an instruction signal and send a control signal to the master control module according to the instruction signal. The master control module is configured to send a driving signal to the driving module according to the control signal. The driving module is configured to control the motor to drive the automobile trunk lid to move according to the driving signal. The application detects the instruction signal through the signal detection module, and controls the motor to drive the automobile trunk lid to open or close through the master control module and the driving module, so as to realize the automatic opening and closing of the automobile trunk lid and improve the use comfort of users.

[0047] In order to make the above objectives, characteristics and advantages of the present application more apparent and easy to understand, the following will describe a preferred embodiment in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0049] Fig. 1 shows a structural schematic diagram of a car trunk lid control circuit provided by the embodiments of the present application;

[0050] Fig. 2 shows a circuit diagram of a driving module provided by the embodiments of the present application;

[0051] Fig. 3 shows another structural schematic diagram of a car trunk lid control circuit provided by the embodiments of the present application;

[0052] Fig. 4 shows a circuit diagram of a signal detection module provided by the embodiments of the present application.

[0053] Main element symbol explanation: 100-car trunk lid control circuit; 110-power module; 120-signal detection module; 130-main control module; 140-driving module; 150-Hall sensor; 160-a plurality of limit switches; 200-motor. DETAILED DESCRIPTION

[0054] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation to the present application.

[0055] In addition, the terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is used only for the purpose of describing particular embodiments and is not intended to be limiting of this application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0057] Embodiment 1

[0058] The embodiment of the application provides a car trunk lid control circuit, please refer to Figure 1, the car trunk lid control circuit 100 includes: power module 110, signal detection module 120, main control module 130 and drive module 140;

[0059] The power module 110 is electrically connected with the signal detection module 120, the main control module 130 and the drive module 140 respectively;

[0060] The signal detection module 120 is further electrically connected with the main control module 130;

[0061] The main control module 130 is further electrically connected with the drive module 140;

[0062] The drive module 140 is further electrically connected with the motor 200;

[0063] The signal detection module 120 is used for acquiring an instruction signal, and sending a control signal to the main control module 130 according to the instruction signal;

[0064] The main control module 130 is used for sending a drive signal to the drive module 140 according to the control signal;

[0065] The drive module 140 is used for controlling the motor 200 to drive the car trunk lid to move according to the drive signal.

[0066] Most of the car trunk lids in the prior art are opened or closed by relying on human force through a pull rope, and the opening and closing action is complicated, and when the user's hands are occupied, the car trunk lid cannot be conveniently opened or closed.

[0067] In the embodiment, the signal detection module 120 monitors the instruction signal, and sends a corresponding control signal to the main control module 130 according to the instruction signal, the main control module 130 sends a drive signal to the drive module 140 according to the current opening or closing condition of the car trunk lid in combination with the control signal, so as to drive the motor 200 to drive the car trunk lid to open, close or stop moving, and then the car trunk lid is automatically opened and closed.

[0068] In an embodiment, referring to FIG. 2, the driving signal includes a first signal or a second signal, and the driving module 140 includes a first switch Q1, a second switch Q2, a third switch Q3, and a fourth switch Q4.

[0069] The control end of the first switch Q1 is electrically connected with the main control module 130 and the output end of the first switch Q1 respectively, the input end of the first switch Q1 is electrically connected with the power module 110, and the output end of the first switch Q1 is further electrically connected with the input end of the second switch Q2 and the motor 200.

[0070] The control end of the second switch Q2 is electrically connected with the main control module 130 and the output end of the second switch Q2 respectively, and the output end of the second switch Q2 is further electrically connected with the output end of the fourth switch Q4.

[0071] The control end of the third switch Q3 is electrically connected with the main control module 130 and the output end of the third switch Q3 respectively, the input end of the third switch Q3 is electrically connected with the power module 110, and the output end of the third switch Q3 is further electrically connected with the input end of the fourth switch Q4 and the motor 200.

[0072] The control end of the fourth switch Q4 is electrically connected with the main control module 130 and the output end of the fourth switch Q4 respectively, and the output end of the fourth switch Q4 is further grounded.

[0073] The first switch Q1 and the fourth switch Q4 are used for receiving the first signal and turning on to form a first current path, so as to control the motor 200 to drive the automobile trunk cover to open.

[0074] The second switch Q2 and the third switch Q3 are used for receiving the first signal and turning on to form a second current path, so as to control the motor 200 to drive the automobile trunk cover to close.

[0075] The first switch Q1, the second switch Q2, the third switch Q3, and the fourth switch Q4 are used for receiving the second signal and turning off, so as to control the motor 200 to stop driving the automobile trunk cover.

[0076] In the embodiment, the driving signal includes a plurality of first signals or a plurality of second signals, wherein the first signal is high level and the second signal is low level. The first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q4 are all NMOS tubes. When the first switch tube Q1 and the fourth switch tube Q4 receive the high level signal, they are turned on, at this time, the current input by the power module 110 flows through the first switch tube Q1, the motor 200 and the fourth switch tube Q4 to the ground in sequence, at this time, the current direction is defined as the positive direction, the motor 200 rotates in the positive direction, and the transmission of the automobile trunk lid is opened; when the second switch tube Q2 and the third switch tube Q3 receive the high level signal, they are turned on, at this time, the input current of the power module 110 flows through the third switch tube Q3, the motor 200 and the second switch tube to the ground in sequence, at this time, the current direction is defined as the negative direction, the motor 200 rotates in the negative direction, and the transmission of the automobile trunk lid is closed; when the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q4 receive the low level signal, they are turned off, at this time, the current does not flow through the motor 200, and the motor 200 stops transmission. It should be noted that in the initial state, the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q4 are all in the off state.

[0077] Further, the resistance R and the diode D are connected in parallel, and are respectively connected in series between the control end of each switch tube and the main control module 130, and a resistance R is further connected in series between the control end and the output end of each switch tube; the two inductors L are connected in parallel and are connected in series between the output end of the fourth switch tube Q4 and the ground.

[0078] In an embodiment, referring to FIG. 3, the automobile trunk lid control circuit 100 further includes a Hall sensor 150, which is electrically connected with the main control module 130 and the motor 200 respectively; the Hall sensor 150 is used for monitoring the current motion state of the motor 200 and generating a corresponding Hall signal; and the Hall sensor 150 sends the Hall signal to the main control module 130.

[0079] In the embodiment, the main control module 130 determines the motion state of the automobile trunk lid in combination with the Hall signal sent by the Hall sensor 150, wherein the motion state of the automobile trunk lid includes the opening, closing or static state, and the main control module 130 sends the first signal to the first switch tube Q1 and the fourth switch tube Q4, or sends the first signal to the second switch tube Q2 and the third switch tube Q3, or sends the second signal to the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q4 according to the current motion state of the automobile trunk lid in combination with the control signal sent by the signal detection module 120.

[0080] It should be noted that the movement state of the motor 200 includes a static state, forward rotation or reverse rotation, and further, the automobile trunk lid control circuit 100 further comprises an indicating element, such as an indicator light, which is electrically connected to the motor 200 and the main control module 130 respectively. When the motor 200 is in a static state, the indicator light is off, and when the motor 200 is in forward rotation or reverse rotation, the indicator light is on.

[0081] In an embodiment, referring again to FIG. 3, the automobile trunk lid control circuit 100 further comprises a plurality of limit switches 160, which are electrically connected to the main control module 130 respectively; the plurality of limit switches 160 are configured to send a limit signal to the main control module 130 when any of the limit switches is closed; and the main control module 130 is further configured to send the second signal to the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q4 when receiving the limit signal.

[0082] In the present embodiment, the plurality of limit switches 160 include a first left limit switch, a second left limit switch, a first right limit switch and a second right limit switch. Specifically, the first left limit switch and the second left limit switch are respectively arranged at the left and right ends of a first preset position of the automobile trunk lid, and are configured to send a limit signal to the main control module 130 when the automobile trunk lid is opened to the first preset position; the first right limit switch and the second right limit switch are respectively arranged at the left and right ends of a second preset position of the automobile trunk lid, and are configured to send a limit signal to the main control module 130 when the automobile trunk lid is closed to the second preset position. The first preset position is the position of the automobile trunk lid when it is completely closed, and the second preset position is the position of the automobile trunk lid when it is completely opened.

[0083] In an embodiment, referring to FIG. 4, the instruction signal comprises a capacitance change signal, and the signal detection module 120 comprises a fifth switch tube Q5, a sixth switch tube Q6 and a sensing device;

[0084] The input end of the fifth switch tube Q5 is electrically connected to the power supply module 110, the control end of the fifth switch tube Q5 is electrically connected to the power supply module 110 and the sensing device respectively, and the output end of the fifth switch tube Q5 is electrically connected to the control end of the sixth switch tube Q6;

[0085] The input end of the sixth switch tube Q6 is electrically connected to the main control module 130, and the output end and the control end of the sixth switch tube Q6 are grounded respectively;

[0086] When the capacitance between the sensing device and the reference object changes, the fifth switch tube Q5 is configured to obtain the capacitance change signal and turn on;

[0087] The sixth switch Q6 is used for being turned on when the fifth switch Q5 is turned on, so that the control module 130 obtains the control signal.

[0088] In the embodiment, when the capacitance between the sensing device and the reference object, such as the ground, changes, the control end of the fifth switch Q5 receives a capacitance change signal, such as a high-level signal, at this time, the fifth switch Q5 is turned on, the control end of the sixth switch Q6 obtains a high level and is turned on, at this time, the control module 130 obtains the control signal, that is, a low-level signal.

[0089] For example, when the sensing device detects the user's kicking behavior, the capacitance between the sensing device and the ground changes, at this time, the fifth switch Q5 receives a capacitance change signal, that is, a foot kick signal, the fifth switch Q5 and the sixth switch Q6 are turned on in turn, and the control module 130 receives a low-level signal. It should be noted that the fifth switch Q5 and the sixth switch Q6 are triodes.

[0090] Further, an inductor is arranged between the input end and the control end of the fifth switch Q5, the control end of the fifth switch Q5 is connected with the sensing device in series with an inductor and a diode, two inductors are further arranged in series between the output end of the fifth switch Q5 and the control end of the sixth switch Q6, a capacitor is further arranged between the nodes of the two inductors and the ground; an inductor is further arranged in series between the control end and the output end of the sixth switch Q6.

[0091] In an embodiment, the control module 130 includes a control chip, the control chip is respectively connected with the Hall sensor 150, the plurality of limit switches 160 and the input end of the sixth switch Q6;

[0092] The control chip is used for judging the current motion state of the motor 200 according to the Hall signal when the control signal is obtained.

[0093] If the current motion state is a static state, the first signal is sent to the first switch Q1 and the fourth switch Q4, or the first signal is sent to the second switch Q2 and the third switch Q3.

[0094] If the current motion state is forward rotation or reverse rotation, the second signal is sent to the first switch Q1, the second switch Q2, the third switch Q3 and the fourth switch Q4.

[0095] In the embodiment, the master control chip is a microcontroller unit (MCU), and in other embodiments, other types of processing units can be selected according to actual conditions, which are not limited here.

[0096] After the sixth switch tube Q6 is turned on, the master control module 130 obtains a low-level signal, that is, a control signal, and judges the current motion state of the motor 200 according to the Hall signal sent by the Hall sensor 150. If the current motion state is a static state, a first signal, that is, a high-level signal, is sent to the first switch tube Q1 and the fourth switch tube Q4, the first switch tube Q1 and the fourth switch tube Q4 are turned on, the current input by the power supply module 110 flows through the motor 200 through a first path, the motor 200 is controlled to rotate forward, and the automobile trunk cover is opened, or the first signal is sent to the second switch tube Q2 and the third switch tube Q3, the second switch tube Q2 and the third switch tube Q3 are turned on, the current input by the power supply module 110 flows through the motor 200 through a second path, the motor 200 is controlled to rotate reversely, and the automobile trunk cover is opened.

[0097] If the current motion state is forward rotation or reverse rotation, a second signal, that is, a low-level signal, is sent to the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q4, at this time, the current does not flow through the motor 200, and the motor 200 stops transmission. Thus, by setting the sensing device to obtain an instruction signal, the motor 200 is controlled to drive the automobile trunk cover to open, close or stop moving, the convenient opening and closing of the automobile trunk cover is realized, and the user experience is improved.

[0098] For example, when the sensing device detects a user's kicking action, if the automobile trunk cover is in a static state at this time, the automobile trunk cover is opened or closed, and if the automobile trunk cover is being opened at this time, the automobile trunk cover is controlled to stop opening or closing.

[0099] In an embodiment, the instruction signal includes a first button signal or a second button signal, the control signal includes an opening signal or a closing signal, the signal detection module 120 includes a plurality of buttons, and the plurality of buttons are respectively electrically connected or wirelessly connected with the master control module 130.

[0100] The plurality of buttons are configured to send an opening signal to the master control module 130 when the first button signal is detected.

[0101] The plurality of buttons are configured to send a closing signal to the master control module 130 when the second button signal is detected.

[0102] In the embodiment, the plurality of keys include an opening key and a closing key, wherein the opening key is pressed, the opening signal is received by the main control module 130, and the closing key is pressed, the closing signal is received by the main control module 130.

[0103] Further, the plurality of keys further include an illumination lamp key and a locking key, wherein the illumination lamp key is pressed, the light state switching signal is sent by the main control module 130 to the indicator lamp, and the light state switching signal is used to control the indicator lamp to be closed if the indicator lamp is in an open state, and control the indicator lamp to be opened if the indicator lamp is in a closed state.

[0104] In an embodiment, the main control module 130 includes a main control chip, the main control chip is electrically connected with the Hall sensor 150 and the plurality of limit switches 160 respectively, and the main control chip is further electrically connected or wirelessly connected with the plurality of keys.

[0105] The main control chip is used to judge the current motion state of the motor 200 according to the Hall signal when the opening signal is acquired.

[0106] If the current motion state is a static state, the first signal is sent to the first switch tube Q1 and the fourth switch tube Q4.

[0107] If the current motion state is forward rotation or reverse rotation, the second signal is sent to the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q4 respectively.

[0108] In the embodiment, if the current motion state of the motor 200 is a static state, the main control chip controls the opening of the automobile trunk lid; if the current motion state of the motor 200 is forward rotation or reverse rotation, it indicates that the motion state of the automobile trunk lid is in opening or closing, at this time, the main control chip controls the automobile trunk lid to stop opening or closing.

[0109] In an embodiment, the main control chip is further used to judge the current motion state of the motor 200 according to the Hall signal when the closing signal is acquired by the main control module 130.

[0110] If the current motion state is a static state, the first signal is sent to the second switch tube Q2 and the third switch tube Q3.

[0111] If the current motion state is forward rotation or reverse rotation, the second signal is sent to the first switch tube Q1, the second switch tube Q2, the third switch tube Q3 and the fourth switch tube Q4 respectively.

[0112] In the embodiment, if the current motion state of the motor 200 is the static state, the master control chip controls the closing of the automobile trunk cover; if the current motion state of the motor 200 is the forward rotation or the reverse rotation, it indicates that the motion state of the automobile trunk cover is in the opening or the closing, at this time, the master control chip controls the automobile trunk cover to stop opening or closing.

[0113] The automobile trunk cover control circuit provided by the embodiment of the application comprises a power module, a signal detection module, a master control module and a driving module; the power module is electrically connected with the signal detection module, the master control module and the driving module respectively; the signal detection module is further electrically connected with the master control module; the master control module is further electrically connected with the driving module; the driving module is further electrically connected with the motor; the signal detection module is used for acquiring an instruction signal and sending a control signal to the master control module according to the instruction signal; the master control module is used for sending a driving signal to the driving module according to the control signal; and the driving module is used for controlling the motor to drive the automobile trunk cover to move according to the driving signal. The application detects the instruction signal through the signal detection module, and controls the motor to drive the automobile trunk cover to open or close through the master control module and the driving module, so that the automatic opening and closing of the automobile trunk cover is realized, and the use comfort of the user is improved.

[0114] Embodiment 2

[0115] In addition, the embodiment of the application further provides an automobile trunk cover comprising the automobile trunk cover control circuit of the first aspect.

[0116] The automobile trunk cover provided by the embodiment of the application can realize the function of the automobile trunk cover control circuit provided by the embodiment 1, and thus, the function of the automobile trunk cover control circuit provided by the embodiment 1 will not be described here again.

[0117] In all the examples shown and described herein, any specific values should be interpreted as merely exemplary and not as a limitation, and thus, other examples of the example embodiments can have different values.

[0118] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0119] The above-described embodiments only express several implementation manners of the application, the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the application. It should be pointed out that, for those skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which all belong to the protection scope of the application.

Claims

1. A car trunk lid control circuit, characterized in that: The circuit includes: a power supply module, a signal detection module, a main control module and a drive module; The power supply module is electrically connected to the signal detection module, the main control module and the driving module respectively; The signal detection module is also electrically connected to the main control module; The main control module is also electrically connected to the driving module; The driving module is also electrically connected to the motor; The signal detection module is used to obtain the command signal and send a control signal to the main control module according to the command signal; The main control module is configured to send a driving signal to the driving module according to the control signal; The driving module is used to control the motor to drive the car trunk lid to move according to the driving signal.

2. The automobile trunk lid control circuit according to claim 1, characterized in that: The driving signal includes a first signal or a second signal, and the driving module includes a first switching tube, a second switching tube, a third switching tube and a fourth switching tube; The control end of the first switch tube is electrically connected to the main control module and the output end of the first switch tube respectively, the input end of the first switch tube is electrically connected to the power module, and the output end of the first switch tube is also electrically connected to the input end of the second switch tube and the motor; The control end of the second switch tube is electrically connected to the main control module and the output end of the second switch tube respectively, and the output end of the second switch tube is also electrically connected to the output end of the fourth switch tube; The control end of the third switch tube is electrically connected to the main control module and the output end of the third switch tube respectively, the input end of the third switch tube is electrically connected to the power module, and the output end of the third switch tube is also electrically connected to the input end of the fourth switch tube and the motor; The control end of the fourth switch tube is electrically connected to the main control module and the output end of the fourth switch tube respectively. The output end of the fourth switch tube is also grounded; The first switch tube and the fourth switch tube are used to receive the first signal and conduct to form a first current path to control the motor to drive the car trunk lid to open; The second switch tube and the third switch tube are used to receive the first signal and conduct to form a second current path to control the motor to drive the car trunk lid to close; The first switching tube, the second switching tube, the third switching tube and the fourth switching tube are used to receive the second signal and turn off to control the motor to stop driving the car trunk lid.

3. The automobile trunk lid control circuit according to claim 2, characterized in that: The circuit further includes a Hall sensor electrically connected to the main control module and the motor respectively; The Hall sensor is used to monitor the current motion state of the motor and generate a corresponding Hall signal; and send the Hall signal to the main control module.

4. The automobile trunk lid control circuit according to claim 3, characterized in that: The circuit further includes a plurality of limit switches electrically connected to the main control module respectively; The plurality of limit switches are configured to send a limit signal to the main control module when any one of the limit switches is closed; The main control module is further configured to send the second signal to the first switch tube, the second switch tube, the third switch tube, and the fourth switch tube when receiving the limit signal.

5. The automobile trunk lid control circuit according to claim 4, characterized in that: The command signal includes a capacitance change signal, and the signal detection module includes a fifth switch tube, a sixth switch tube and a sensing device; The input end of the fifth switch tube is electrically connected to the power module, the control end of the fifth switch tube is electrically connected to the power module and the sensing device respectively, and the output end of the fifth switch tube is electrically connected to the control end of the sixth switch tube; The input end of the sixth switch tube is electrically connected to the main control module, and the output end and the control end of the sixth switch tube are grounded respectively; When the capacitance between the sensing device and the reference object changes, the fifth switch tube is used to obtain a capacitance change signal and turn on; The sixth switch tube is configured to be turned on when the fifth switch tube is turned on, so that the main control module obtains the control signal.

6. The automobile trunk lid control circuit according to claim 4, characterized in that: The command signal includes a first key signal or a second key signal, the control signal includes an open signal or a close signal, the signal detection module includes a plurality of keys, and the plurality of keys are respectively electrically connected or wirelessly connected to the main control module; The plurality of buttons are configured to send an opening signal to the main control module when the first button signal is detected; When the second key signal is detected, a shutdown signal is sent to the main control module.

7. The automobile trunk lid control circuit according to claim 5, characterized in that: The main control module includes a main control chip, and the main control chip is electrically connected to the Hall sensor, the plurality of limit switches and the input end of the sixth switch tube respectively; The main control chip is used to determine the current motion state of the motor according to the Hall signal when the control signal is obtained; If the motion state is a stationary state, sending the first signal to the first switching tube and the fourth switching tube, or sending the first signal to the second switching tube and the third switching tube; If the motion state is forward rotation or reverse rotation, the second signal is sent to the first switching transistor, the second switching transistor, the third switching transistor, and the fourth switching transistor.

8. The automobile trunk lid control circuit according to claim 6, characterized in that: The main control module includes a main control chip, which is electrically connected to the Hall sensor and the plurality of limit switches respectively, and is also electrically connected or wirelessly connected to the plurality of buttons; The main control chip is configured to determine the current motion state of the motor according to the Hall signal when the opening signal is obtained; If the current motion state is a stationary state, the first switch tube and the fourth switch tube are sent First signal; If the current motion state is forward rotation or reverse rotation, the second signal is sent to the first switching transistor, the second switching transistor, the third switching transistor, and the fourth switching transistor respectively.

9. The automobile trunk lid control circuit according to claim 8, characterized in that: The main control chip is further configured to determine the current motion state of the motor according to the Hall signal when the main control module obtains the shutdown signal; If the current motion state is a stationary state, sending the first signal to the second switching transistor and the third switching transistor; If the current motion state is forward rotation or reverse rotation, the second signal is sent to the first switching transistor, the second switching transistor, the third switching transistor, and the fourth switching transistor respectively.

10. A car trunk cover, characterized in that: The invention comprises the automobile trunk lid control circuit according to any one of claims 1 to 9.

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