Control circuit and system of automatic front windshield sunshade curtain and vehicle

Abstract

The utility model relates to the technical field of vehicle control, in particular to a control circuit and system of an automatic front windshield sunshade curtain and a vehicle, and the control circuit comprises a sunshade curtain control signal input module which is used for inputting a sunshade curtain control signal; the control module is provided with a signal receiving end and is used for receiving the sunshade curtain control signal, and the control module is connected with the sunshade curtain control signal input module; the relay comprises a coil and a contact switch, the first end of the coil is connected with the control end of the control module, the second end of the coil is grounded to form a control loop, and the coil receives a control signal of the control module to control the on-off state of the contact switch; the power supply is used for providing electric power; and the motor is connected with a power supply through the contact switch, and when the contact switch is switched on, the motor is driven to unfold or fold the sunshade curtain. According to the utility model, automatic control can be realized, and the operation convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile intelligent control technology, concretely relates to a control circuit, system and vehicle of automatic front windshield sunshade curtain. BACKGROUND

[0002] With the rapid development of modern automobile industry, people's comfort requirements for the internal environment of the automobile are increasing. Especially in the case of direct sunlight, the temperature inside the vehicle rises rapidly, especially in the front row area of the vehicle, because of the high light transmittance of the front windshield, the sunlight is directly irradiated on the interior trim panel, resulting in a sharp rise in the temperature inside the vehicle. In order to reduce the influence of interior reflection on driving vision, the front interior of the vehicle usually adopts all-black paint, however, this design makes the interior absorb and transfer a large amount of solar heat, further aggravating the rise in temperature inside the vehicle, making it difficult to reduce the temperature inside the vehicle to a comfortable temperature range.

[0003] In order to cope with the rapid rise in temperature inside the vehicle, especially the problem of direct sunlight caused by the high light transmittance of the front windshield in the front row area, although some vehicle sunshade curtain products have appeared on the market, most of these products adopt manual operation mode, such as opening or closing the sunshade curtain by manually pulling or rotating the rod. This operation mode is not only relatively troublesome, requiring passengers to physically operate in the vehicle, but also cannot realize remote control, greatly reducing the convenience and intelligent level of use.

[0004] Specifically, when using the manual sunshade curtain, the passenger needs to manually pull or rotate the control rod of the sunshade curtain to drive the sunshade curtain to move along a specific track or frame. This operation mode is not only time-consuming and laborious, but in some cases, such as when the vehicle is driving, manually operating the sunshade curtain may pose a potential threat to the safety of the passenger. In addition, the manual sunshade curtain usually cannot be connected with the intelligent system of the vehicle, so it cannot realize remote control or automatic control, which to some extent limits the use range and convenience of the sunshade curtain.

[0005] Therefore, it is necessary to develop a new control circuit, system and vehicle of automatic front windshield sunshade curtain. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a control circuit, system and vehicle of automatic front windshield sunshade curtain to realize automatic control and improve the convenience of operation.

[0007] In the first aspect, the utility model relates to a control circuit of front windshield sunshade curtain, which comprises:

[0008] A sunshade curtain control signal input module for inputting sunshade curtain control signals;

[0009] A control module having a signal receiving end for receiving a sunshade control signal, the control module being connected with the sunshade control signal input module;

[0010] A relay including a coil and a contact switch, a first end of the coil being connected with the control end of the control module, a second end of the coil being grounded to form a control loop, the coil receiving the control signal of the control module to control the on-off state of the contact switch;

[0011] A power supply for providing power;

[0012] A motor connected with the power supply through the contact switch, the motor being driven to deploy or retract the sunshade when the contact switch is turned on.

[0013] Optionally, the sunshade control signal input module includes a first switch and a second switch, the first ends of the first switch and the second switch being connected with the signal receiving end of the control module, the second ends of the first switch and the second switch being grounded for inputting the sunshade control signal. By using two independent first switch and second switch to control the deployment and retraction of the sunshade respectively, the convenience and intuitiveness of operation are improved. The user only needs to simply close the corresponding switch to realize the deployment or retraction of the sunshade.

[0014] Optionally, the control module includes a cabin domain controller, a vehicle controller and a body controller, the cabin domain controller being connected with the first switch and the second switch respectively, the body controller being connected with the relay, and the vehicle controller being connected with the cabin domain controller and the body controller. The control module uses the original cabin domain controller, vehicle controller and body controller on the vehicle, without the need to purchase new control hardware, thereby reducing the cost of the overall system. The installation, debugging and maintenance costs possibly caused by the addition of new hardware are reduced. The system has good compatibility and integration with other systems of the vehicle. The use of the original controller can reduce the system instability and compatibility problems possibly caused by the introduction of new hardware.

[0015] Optionally, a remote communication terminal is further included, the remote communication terminal being connected with the vehicle controller for receiving and forwarding a remote control signal to the body controller. By receiving and forwarding the remote control signal through the remote communication terminal, the remote control function of the sunshade is realized. This design increases the flexibility and convenience of the system, and the user can control the state of the sunshade at any time and anywhere through a mobile phone or other remote device.

[0016] Optionally, a protection module is further included, a first end of the protection module being connected with the positive pole of the power supply, and a second end of the protection module being connected with the power input end of the relay. By adding the protection module in the circuit, the power supply can be cut off in time when abnormal conditions such as overloading and short circuit occur in the circuit, thereby protecting the circuit and the motor from being damaged. This design improves the safety and reliability of the system.

[0017] Optionally, the protection module is a fuse or a circuit breaker. Adding a fuse or circuit breaker to the circuit allows for timely power cut-off in case of overload, short circuit, or other abnormal conditions, protecting the circuit and motor from damage. This design improves the system's safety and reliability.

[0018] Secondly, the control system for a windshield sunshade according to the present invention includes a sunshade and a control circuit. The control circuit adopts the control circuit described in the present invention, and the motor output shaft in the control circuit is connected to the actuator of the sunshade.

[0019] Optionally, the control circuit includes two motors connected in parallel.

[0020] The actuator includes two ball screws, one on each side of the windshield. The drive ends of the ball screws are connected to the motor output shafts, and the screw studs are connected to the lower end of the sunshade curtain. The parallel operation of the two motors provides greater driving force, enabling the sunshade to open and close more quickly and smoothly. The ball screws, positioned on the left and right sides of the windshield with their drive ends connected to the motor output shafts, ensure that the sunshade opens and closes smoothly along both sides of the windshield, while providing sufficient stability and precision.

[0021] Optionally, the actuator further includes a telescopic rod, which is located at the lower end of the sunshade curtain, and its left and right ends are respectively connected to the screw studs of two ball screws. The design of the telescopic rod further enhances the stability and load-bearing capacity of the sunshade curtain. During the unfolding or retraction of the sunshade curtain, the telescopic rod can extend and retract according to the rotation of the ball screws, thereby maintaining the flatness and stability of the sunshade curtain. Simultaneously, the telescopic rod can also withstand the weight of the sunshade curtain and the effects of external factors such as wind force, ensuring the safety and reliability of the sunshade curtain.

[0022] Thirdly, the vehicle described in this utility model adopts the control system of the windshield sunshade described in this utility model.

[0023] The beneficial effects of this utility model are:

[0024] (1) Improved ease of operation:

[0025] Through the design of the control circuit, the opening and closing of the sunshade can be controlled by electrical signals, eliminating the need for passengers to manually pull or rotate the control lever, thus greatly improving the convenience of operation.

[0026] (2) It can achieve remote control:

[0027] The control module has a signal receiving end and is integrated with the remote communication terminal, and the system can receive a sunshade curtain control signal from the outside (such as a vehicle intelligent system, a mobile phone APP, etc.). This means that passengers can remotely operate the sunshade curtain by sending a control signal from outside the vehicle or a position away from the sunshade curtain, further improving the intelligent level of use.

[0028] (3) Enhanced safety:

[0029] Since the deployment and retraction of the sunshade curtain can be automatically completed through electrical signals, passengers do not need to manually operate the sunshade curtain during vehicle driving, thereby avoiding potential safety hazards caused by improper operation.

[0030] (4) Simplified circuit design:

[0031] By using a relay to control the on-off of the motor, the circuit design is relatively simple and easy to implement. At the same time, the relay has high reliability and stability, which can ensure the long-term stable operation of the sunshade curtain control circuit.

[0032] In summary, the utility model realizes remote control, automatic control and improves the operation convenience of the sunshade curtain, effectively solves the deficiencies of the existing manual sunshade curtain, and provides a more comfortable, safe and intelligent driving environment for passengers. At the same time, the utility model also has the advantages of simple design, high reliability, etc., and has high practical value and popularization prospect. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a principle block diagram of the control circuit of the front windshield sunshade curtain described in the embodiments of the present application;

[0034] Figure 2 is a circuit diagram of the control circuit of the front windshield sunshade curtain described in the embodiments of the present application;

[0035] Figure 3 is a structure schematic diagram of the control system of the front windshield sunshade curtain described in the embodiments of the present application;

[0036] Figure 4 is a use state diagram of the control system of the front windshield sunshade curtain described in the embodiments of the present application.

[0037] In the figure: 1 - sunshade curtain control signal input module, 2 - control module, 21 - whole vehicle controller, 22 - cabin area controller, 23 - vehicle body controller, 3 - motor, 4 - relay, 5 - protection module, 6, power supply, 7 - remote communication terminal, 8 - front windshield, 9 - ball screw, 10 - screw stud, 11 - telescopic rod, 12 - curtain. DETAILED DESCRIPTION

[0038] The embodiments of the present application will be described below with reference to the drawings and preferred embodiments, and other advantages and effects of the present application can be understood by those skilled in the art from the disclosure in the specification. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details in the specification based on different views and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, and are not intended to limit the protection scope of the present application.

[0039] As shown in Figure 1 and Figure 2 , in the embodiments of the present application, a control circuit of a front windshield sunshade curtain includes a control module 2, a sunshade curtain control signal input module 1, a power supply 6 (i.e. BT1 in Figure 2 ) and a relay 4 (i.e. K1 in Figure 2 ). The sunshade curtain control signal input module 1 is used for inputting a sunshade curtain control signal. The control module 2 has a signal receiving end for receiving the sunshade curtain control signal, and the control module 2 is connected with the sunshade curtain control signal input module 1. The relay 4 includes a coil and a contact switch, a first end of the coil is connected with a control end of the control module 2, and a second end of the coil is grounded to form a control loop, and the coil receives a control signal of the control module 2 to control the on-off state of the contact switch. The power supply 6 is used for providing power. The motor 3 is connected with the power supply 6 through the contact switch, and when the contact switch is turned on, the motor 3 is driven to unfold or retract the sunshade curtain.

[0040] As shown in Figure 2 , in a possible embodiment, the sunshade curtain control signal input module 1 includes a first switch (i.e. S1 in Figure 2 ) and a second switch (i.e. S2 in Figure 2 ), and a first end of the first switch and the second switch is connected with the signal receiving end of the control module 2, and a second end of the first switch and the second switch is grounded for inputting the sunshade curtain control signal. The unfolding and retraction of the sunshade curtain are respectively controlled by the two independent first switch and second switch, which improves the convenience and intuitiveness of operation. The user only needs to simply close the corresponding switch to realize the unfolding or retraction of the sunshade curtain.

[0041] As shown in Figure 3As shown, in one possible embodiment, the control module 2 includes a cockpit domain controller 22, a vehicle controller 21, and a body controller 23. The cockpit domain controller 22 is connected to a first switch and a second switch, respectively. The body controller 23 is connected to a relay 4, and the vehicle controller 21 is connected to both the cockpit domain controller 22 and the body controller 23. The vehicle controller 21, cockpit domain controller 22, and body controller 23 exchange data via LIN and CAN communication loops. The control module 2 utilizes the vehicle's existing cockpit domain controller 22, vehicle controller 21, and body controller 23, eliminating the need to purchase new control hardware and thus reducing the overall system cost. It also reduces the installation, debugging, and maintenance costs that might arise from adding new hardware. Furthermore, it offers good compatibility and integration with other vehicle systems. Using existing controllers reduces potential system instability and compatibility issues that might arise from introducing new hardware.

[0042] like Figure 3 As shown, in one possible embodiment, a control circuit for a windshield sunshade further includes a remote communication terminal 7 (e.g., a TBOX), which is connected to the vehicle controller 21 and used to receive and forward remote control signals to the body controller 23. By receiving and forwarding remote control signals through the remote communication terminal 7, the remote control function of the sunshade is realized. This design increases the system's flexibility and convenience, allowing users to control the sunshade's status anytime, anywhere via remote devices such as mobile phones.

[0043] like Figure 2 As shown, in one possible embodiment, the control circuit for a windshield sunshade further includes a protection module 5. The first terminal of the protection module 5 is connected to the positive terminal of the power supply 6, and the second terminal of the protection module 5 is connected to the power input terminal of the relay 4. Adding the protection module 5 to the circuit allows for timely disconnection of the power supply 6 in case of overload, short circuit, or other abnormal conditions, protecting the circuit and motor 3 from damage. This design improves the safety and reliability of the system.

[0044] like Figure 2 As shown, in one possible embodiment, the protection module 5 is a fuse (i.e., Figure 2 F1 in the diagram or a circuit breaker (not shown in the figure).

[0045] like Figure 3 As shown in the embodiment of this application, a control system for a windshield sunshade includes a sunshade and a control circuit. The control circuit adopts the control circuit described in the embodiment of this application, and the output shaft of the motor 3 in the control circuit is connected to the actuator of the sunshade.

[0046] like Figure 4As shown, in one possible embodiment, the control circuit includes two motors 3 connected in parallel. The actuator includes two ball screws 9, respectively positioned on the left and right sides of the windshield 8. The drive ends of the ball screws 9 are connected to the output shafts of the motors 3, and the screw studs 10 of the ball screws 9 are connected to the lower end of the sunshade curtain 12. The parallel connection of the two motors 3 provides greater driving force, enabling the sunshade to unfold and retract more quickly and smoothly. The ball screws 9, respectively positioned on the left and right sides of the windshield 8, with their drive ends connected to the output shafts of the motors 3, ensure that the sunshade can unfold and retract smoothly along the left and right sides of the windshield 8, while providing sufficient stability and precision.

[0047] In this embodiment of the application, the sunshade curtain also includes a retraction device (not shown in the figure), which is used to control the opening and closing of the curtain 12 of the sunshade curtain. Since the retraction device is prior art, it will not be described in detail here.

[0048] like Figure 4 As shown, in one possible embodiment, the actuator further includes a telescopic rod 11, which is located at the lower end of the curtain 12 of the sunshade, and its left and right ends are respectively connected to the screw studs 10 of the two ball screws 9. The design of the telescopic rod 11 further enhances the stability and load-bearing capacity of the sunshade. During the unfolding or retraction of the sunshade, the telescopic rod 11 can extend and retract according to the rotation of the ball screws 9, thereby maintaining the flatness and stability of the sunshade. At the same time, the telescopic rod 11 can also withstand the weight of the sunshade and the effects of external factors such as wind force, ensuring the safety and reliability of the sunshade. When the control motor 3 rotates forward, the curtain 12 of the sunshade slides down along the ball screws 9, and the telescopic rod 11 extends; when the control motor 3 rotates in reverse, the curtain 12 of the sunshade slides up along the ball screws 9, and the telescopic rod 11 shortens.

[0049] In one possible embodiment, a control system for a windshield sunshade can be configured into the following three modes according to the user's usage scenario:

[0050] Scenario 1. User manually operates the sunshade: When the user triggers the first switch, the cockpit domain controller 22 sends the trigger signal of the first switch to the body controller 23 through the vehicle controller 21. The body controller 23 converts the CAN signal into a voltage output to relay 4, controlling the contact switch of relay 4 to close, controlling motor 3 to rotate forward, causing the sunshade to unfold. When the sunshade reaches its position, the control relay 4 opens. When the user triggers the second switch, the cockpit domain controller 22 sends the trigger signal of the second switch to the body controller 23 through the vehicle controller 21. The body controller 23 controls the contact switch of relay 4 to close, controlling motor 3 to rotate in reverse, causing the sunshade to retract. When the sunshade reaches its position, the control relay 4 opens.

[0051] Scenario two: user remotely operates the sunshade curtain: the user can send a remote control signal of the sunshade curtain through a mobile phone, and when the remote communication terminal 7 receives the remote control signal of the sunshade curtain, the vehicle controller 21 sends the vehicle body controller 23, and the vehicle body controller 23 drives the motor 3 to work.

[0052] Scenario three: the user sets the parking state of the sunshade curtain, and the sunshade curtain is automatically retracted when the vehicle is started: when the user locks the vehicle, the vehicle body controller 23 judges that the vehicle is in a closed signal, and when there is a vehicle closed signal, the vehicle body controller 23 outputs a voltage to the relay 4, completes the closure of the sunshade curtain relay 4, and makes the sunshade curtain automatically expand. When the vehicle body controller 23 judges that the vehicle is in a drivable mode, the vehicle body controller 23 outputs a voltage to the relay 4, completes the closure of the sunshade curtain relay 4, and makes the sunshade curtain automatically retract.

[0053] In the embodiment of the application, a vehicle adopts the control system of the front windshield sunshade curtain.

[0054] The above embodiments are the preferred embodiments of the utility model, but the embodiments of the utility model are not limited by the above embodiments, and any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the utility model should be an equivalent replacement mode, and all are included in the protection scope of the utility model.

Claims

1. A control circuit for a windshield sunshade, characterized in that, include: The sunshade curtain control signal input module (1) is used to input the sunshade curtain control signal; The control module (2) has a signal receiving end for receiving the sunshade control signal. The control module (2) is connected to the sunshade control signal input module (1). The relay (4) includes a coil and a contact switch. The first end of the coil is connected to the control terminal of the control module (2), and the second end of the coil is grounded to form a control circuit. The coil receives the control signal from the control module (2) to control the on / off state of the contact switch. Power source (6), used to provide power; The motor (3) is connected to the power supply (6) via a contact switch. When the contact switch is turned on, the motor (3) is driven to unfold or retract the sunshade.

2. The control circuit for the windshield sunshade according to claim 1, characterized in that, The sunshade control signal input module (1) includes a first switch and a second switch. The first ends of the first switch and the second switch are both connected to the signal receiving end of the control module (2). The second ends of the first switch and the second switch are both grounded and used to input the sunshade control signal.

3. The control circuit for the windshield sunshade according to claim 1, characterized in that, The control module (2) includes a cockpit domain controller (22), a vehicle controller (21) and a body controller (23), wherein the cockpit domain controller (22) is connected to a first switch and a second switch respectively, the body controller (23) is connected to a relay (4), and the vehicle controller (21) is connected to the cockpit domain controller (22) and the body controller (23) respectively.

4. The control circuit for the windshield sunshade according to claim 3, characterized in that, It also includes a remote communication terminal (7), which is connected to the vehicle controller (21) and is used to receive and forward remote control signals to the body controller (23).

5. The control circuit for the windshield sunshade according to claim 1, characterized in that, It also includes a protection module (5), the first end of which is connected to the positive terminal of the power supply (6), and the second end of which is connected to the power input terminal of the relay (4).

6. The control circuit for the windshield sunshade according to claim 5, characterized in that, The protection module (5) is a fuse or a circuit breaker.

7. A control system for a windshield sunshade, characterized in that, It includes a sunshade curtain and a control circuit, wherein the control circuit adopts the control circuit described in any one of claims 1 to 6, and the output shaft of the motor (3) in the control circuit is connected to the actuator of the sunshade curtain.

8. The control system for the windshield sunshade according to claim 7, characterized in that, The control circuit contains two motors (3), and the two motors (3) are connected in parallel; The actuator includes two ball screws (9), which are respectively located on the left and right sides of the windshield (8). The drive end of the ball screw (9) is connected to the output shaft of the motor (3), and the screw stud (10) of the ball screw (9) is connected to the lower end of the curtain (12) of the sunshade.

9. The control system for the windshield sunshade according to claim 8, characterized in that, The actuator also includes a telescopic rod (11), which is located at the lower end of the curtain (12) of the sunshade, and the left and right ends of the telescopic rod (11) are respectively connected to the screw studs (10) of two ball screws (9).

10. A vehicle, characterized in that, The control system of the windshield sunshade as described in any one of claims 7 to 9.

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