Electric window control system and control method

Abstract

The application discloses an electric window control system and a control method, which comprises a main control module, a main screw motor, a vice screw motor, a window locking motor, a window opening and closing current detection module and a window opening and closing speed detection module, wherein the main screw motor, the vice screw motor and the window locking motor are electrically connected with the main control module; the input ends of the window opening and closing current detection module are electrically connected with the main screw motor and the vice screw motor, and the output end of the window opening and closing current detection module is electrically connected with the main control module; the window opening and closing speed detection module is electrically connected with the main control module; the input end of the window locking current detection module is electrically connected with the window locking motor, and the output end of the window locking current detection module is electrically connected with the main control module; one end of the window locking communication module is electrically connected with the main control module, and the other end of the window locking communication module is electrically connected with a window lock to detect the opening and closing state of the window lock.

Description

Technical Field

[0001] This invention relates to the field of electric window control system technology, and in particular to an electric window control system and control method. Background Technology

[0002] Electric windows typically have two push rod motors on the window. The operation of the push rod motors is controlled by a control system, which pushes the window open or pulls it closed. However, the synchronization accuracy of the two push rod motors in existing electric windows is poor. Furthermore, most do not have electronic locks, resulting in insufficient airtightness and security. Some electric windows are equipped with electronic locks, but the logical sequence between the opening and closing of the electronic lock and the opening and closing of the window by the push rod motors is not uniformly set in the control system. Manual operation of the electronic lock and push rod motor commands is required to lock and open / close the window. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an electric window control system and control method with higher synchronization accuracy and to realize the logical sequence processing between the push rod motor and the electronic lock.

[0004] According to a first aspect of the present invention, an electric window control system includes: a main control module, a main screw motor, an auxiliary screw motor and a window locking motor, a window opening / closing current detection module, a window opening / closing speed detection module, a window locking current detection module and a window lock communication module. The main control module is capable of receiving window opening signals and window closing signals. The main screw motor, the auxiliary screw motor and the window locking motor are electrically connected to the main control module. The input terminal of the window opening / closing current detection module is electrically connected to the main screw motor and the auxiliary screw motor, and the output terminal of the window opening / closing current detection module is electrically connected to the main control module. The window opening / closing speed detection module is electrically connected to the main control module. The input terminal of the window locking current detection module is electrically connected to the window locking motor, and the output terminal of the window locking current detection module is electrically connected to the main control module. One end of the window lock communication module is electrically connected to the main control module, and the other end of the window lock communication module is electrically connected to the window lock to detect the open / closed state of the window lock.

[0005] The electric window control system according to an embodiment of the present invention has at least the following beneficial effects: the window lock communication module detects the open / closed state of the window lock and feeds back the open / closed state information to the main control module. When the window lock is open, the main control module controls the main screw motor and the auxiliary screw motor to run. When the window lock is closed, the main control module cannot start the main screw motor and the auxiliary screw motor; it must start the window lock motor first. After receiving the window opening signal, the main control module first controls the window lock motor to run to open the window lock. Then, the main control module controls the main screw motor and the auxiliary screw motor to run synchronously to push the window open, thus realizing the logical sequence processing between the screw motor and the electronic window lock. Furthermore, due to the functions of the window opening / closing speed detection module and the window opening / closing current detection module, the main control module can control the synchronous operation of the main screw motor and the auxiliary screw motor with higher precision.

[0006] The electric window control system according to an embodiment of the present invention further includes a window opening and closing motor power supply module, which is electrically connected to the main screw motor, the auxiliary screw motor and the window opening and closing current detection module respectively. The main control module drives the main screw motor and the auxiliary screw motor to run by controlling the window opening and closing motor power supply module.

[0007] According to an embodiment of the electric window control system of the present invention, the power supply module for opening and closing the window includes a first power supply module for supplying power to the main screw motor and a second power supply module for supplying power to the auxiliary screw motor. The first power supply module includes a relay J1, a transistor Q1, a transistor Q2, and a MOSFET Q3. The base of transistor Q1 is electrically connected to the reverse pulse signal terminal of the main control module, the collector of transistor Q1 is electrically connected to the relay J1, the emitter of transistor Q1 and the emitter of transistor Q2 are respectively grounded, the base of transistor Q2 is electrically connected to the forward pulse signal terminal of the main control module, the collector of transistor Q2 is electrically connected to the relay J1, the gate (G) of MOSFET Q3 is electrically connected to the PWM signal terminal of the main control module, the drain (D) of MOSFET Q3 is electrically connected to the relay J1, and the source (S) of MOSFET Q3 is electrically connected to the input terminal of the window opening and closing motor current detection module. The main control module drives the main screw motor to rotate in reverse direction by inputting forward pulse signals, reverse pulse signals, and PWM signals to the first power supply module.

[0008] According to an embodiment of the electric window control system of the present invention, the second power supply module includes a relay J2, a transistor Q4, a transistor Q5, and a MOSFET Q6. The base of transistor Q4 is electrically connected to the reverse pulse signal terminal of the main control module, the collector of transistor Q4 is electrically connected to the relay J2, the emitter of transistor Q4 and the emitter of transistor Q5 are respectively grounded, the base of transistor Q5 is electrically connected to the forward pulse signal terminal of the main control module, the collector of transistor Q5 is electrically connected to the relay J2, the gate (G) of MOSFET Q6 is electrically connected to the PWM signal terminal of the main control module, the drain (D) of MOSFET Q6 is electrically connected to the relay J2, and the source (S) of MOSFET Q6 is electrically connected to the input terminal of the window switch motor current detection module. The main control module drives the auxiliary screw motor to rotate in reverse direction by inputting forward pulse signals, reverse pulse signals, and PWM signals to the second power supply module.

[0009] According to an embodiment of the electric window control system of the present invention, the window opening and closing current detection module includes an operational amplifier U1, resistors R1, R2, R3, R4, R5, and R6. The first input terminal of the operational amplifier U1 is electrically connected to the source (S) terminal of the MOSFET Q3. The first inverting input terminal of the operational amplifier U1 is electrically connected to one end of resistor R2 and one end of resistor R3, respectively. The first output terminal of the operational amplifier U1 is electrically connected to the other end of resistor R3 and one end of resistor R1, respectively. The other end of resistor R1 is electrically connected to the main control module. The second input terminal of the operational amplifier U1 is electrically connected to the source (S) terminal of the MOSFET Q6. The second inverting input terminal of the operational amplifier U1 is electrically connected to one end of resistor R5 and one end of resistor R6, respectively. The second output terminal of the operational amplifier U1 is electrically connected to the other end of resistor R6 and one end of resistor R4, respectively. The other end of resistor R4 is electrically connected to the main control module. The structure is simple and facilitates the main control module to monitor the current of the main screw motor and the auxiliary screw motor.

[0010] According to an embodiment of the electric window control system of the present invention, the window opening and closing speed detection module includes operational amplifiers U2 and U3, resistors R7, R8, and R9, and capacitors C1, C2, C3, and C4. The positive input terminal of operational amplifier U2 is electrically connected to one end of resistor R7 and one end of capacitor C1, respectively. The other end of resistor R7 is electrically connected to the main screw motor. The negative input terminal of operational amplifier U2 is connected to the working voltage via resistor R8 connected in series. The output terminal of operational amplifier U2 is electrically connected to one end of capacitor C2 and the main control module. The negative input terminal of operational amplifier U3 is electrically connected to resistor R8. The positive input terminal of operational amplifier U3 is electrically connected to one end of resistor R9 and one end of capacitor C3, respectively. The other end of resistor R9 is electrically connected to the negative screw motor. The output terminal of operational amplifier U3 is electrically connected to one end of capacitor C4 and the main control module. The other ends of capacitors C1, C2, C3, and C4 are grounded.

[0011] The electric window control system according to an embodiment of the present invention further includes a window lock communication module. The window lock communication module includes a resistor R10, a transistor Q4, and a transistor Q5. The collector of transistor Q4 is electrically connected to the receiving end of the main control module. The base of transistor Q4 is electrically connected to the collector of transistor Q5 and the window lock via a series resistor R10. The base of transistor Q5 is electrically connected to the transmitting end of the main control module. The emitter of transistor Q5 is connected to the operating voltage, and the emitter of transistor Q4 is grounded. The window lock communication module sends the window lock opening / closing status information to the main control module.

[0012] According to an embodiment of the electric window control system of the present invention, the window lock current detection module includes an operational amplifier U4, resistors R11, R12, and R13, and a capacitor C5. The input terminal of the operational amplifier U4 is electrically connected to the collector of the transistor Q5. The inverting input terminal of the operational amplifier U4 is electrically connected to one end of resistor R11 and one end of resistor R12, respectively. The output terminal of the operational amplifier U4 is electrically connected to the other end of resistor R11 and one end of resistor R13, respectively. The other end of resistor R13 is electrically connected to the main control module and one end of capacitor C5, respectively. The other end of capacitor C5 is grounded.

[0013] The electric window control system according to an embodiment of the present invention further includes a 485 communication module electrically connected to the main control module, which facilitates signal transmission and subsequent program upgrades.

[0014] According to a control method based on a second aspect of the present invention, and using the aforementioned electric window control system, the steps are as follows: the main control module receives a window opening signal; the main control module controls the window locking motor to operate to open the window lock; the main control module controls the main screw motor and the auxiliary screw motor to operate to push the window open; the main control module receives a window closing signal; the main control module controls the main screw motor and the auxiliary screw motor to operate to pull the window back; the main control module controls the window locking motor to operate to close the window lock; according to this logical sequence, the logical sequence processing between the screw motor and the electronic window lock is realized.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings;

[0017] Figure 1 This is a structural block diagram of an electric window control system;

[0018] Figure 2 This is a circuit diagram of one of the control systems for electric windows;

[0019] Figure 3 This is the second circuit diagram of the electric window control system;

[0020] Figure 4 This is a flowchart of the control method. Detailed Implementation

[0021] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0023] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] Reference Figures 1 to 3The electric window control system of this invention includes a main control module, a main screw motor M0, an auxiliary screw motor M1, a window locking motor M2, a window opening / closing current detection module 100, a window opening / closing speed detection module 200, a window locking current detection module 300, and a window lock communication module 300. The main control module can receive window opening and closing signals and can use an STC8AK microcontroller. The main screw motor M0, auxiliary screw motor M1, and window locking motor M2 are electrically connected to the main control module. The input terminals of the window opening / closing current detection module 100 are electrically connected to the main screw motor M0 and auxiliary screw motor M1, and the output terminal of the window opening / closing current detection module 100 is electrically connected to the main control module. The window opening / closing speed detection module 200 is electrically connected to the main control module. The input terminal of the window locking current detection module 300 is electrically connected to the window locking motor M2, and the output terminal of the window locking current detection module 300 is electrically connected to the main control module. A window lock communication module 300... One end of the window lock communication module 300 is electrically connected to the main control module, and the other end is electrically connected to the window lock to detect the open and closed status of the window lock. The window lock communication module 300 detects the open and closed status of the window lock and feeds back the open and closed status information to the main control module. When the window lock is open, the main control module controls the main screw motor M0 and the auxiliary screw motor M1 to run. When the window lock is closed, the main control module cannot start the main screw motor M0 and the auxiliary screw motor M1. It must start the window lock motor M2 first. After receiving the window opening signal, the main control module first controls the window lock motor M2 to run to open the window lock. Then, the main control module controls the main screw motor M0 and the auxiliary screw motor M1 to run synchronously to push the window open. That is, the logical sequence processing between the screw motor and the electronic window lock is realized. Moreover, due to the function of the window opening and closing speed detection module 200 and the window opening and closing current detection module 100, the main control module can control the synchronous operation of the main screw motor M0 and the auxiliary screw motor M1 with higher precision.

[0025] like Figure 2 As shown, in some embodiments, a window switch motor power supply module is also included. The window switch motor power supply module is electrically connected to the main screw motor M0, the auxiliary screw motor M1 and the window switch current detection module 100, respectively. The main control module drives the main screw motor M0 and the auxiliary screw motor M1 to run by controlling the window switch power supply module.

[0026] In some embodiments, the switch window power supply module includes a first power supply module 510 for supplying power to the main screw motor M0 and a second power supply module 520 for supplying power to the auxiliary screw motor M1. The first power supply module 510 includes a relay J1, a transistor Q1, a transistor Q2, and a MOSFET Q3. The base of transistor Q1 is electrically connected to the inverting pulse signal terminal of the main control module, the collector of transistor Q1 is electrically connected to the relay J1, and the emitters of transistor Q1 and Q2 are grounded respectively. The base of transistor Q2 is electrically connected to the forward pulse signal terminal of the main control module, the collector of transistor Q2 is electrically connected to relay J1, the gate of MOSFET Q3 is electrically connected to the PWM signal terminal of the main control module, the drain of MOSFET Q3 is electrically connected to relay J1, and the source of MOSFET Q3 is electrically connected to the input terminal of the switch window motor current detection module. The main control module drives the main screw motor M0 to rotate in reverse by inputting forward pulse signal, reverse pulse signal and PWM signal to the first power supply module 510.

[0027] In some embodiments, the second power supply module 520 includes a relay J2, a transistor Q4, a transistor Q5, and a MOSFET Q6. The base of transistor Q4 is electrically connected to the reverse pulse signal terminal of the main control module, the collector of transistor Q4 is electrically connected to the relay J2, the emitter of transistor Q4 and the emitter of transistor Q5 are respectively grounded, the base of transistor Q5 is electrically connected to the forward pulse signal terminal of the main control module, the collector of transistor Q5 is electrically connected to the relay J2, the gate (G) of MOSFET Q6 is electrically connected to the PWM signal terminal of the main control module, the drain (D) of MOSFET Q6 is electrically connected to the relay J2, and the source (S) of MOSFET Q6 is electrically connected to the input terminal of the switch window motor current detection module. The main control module drives the auxiliary screw motor M1 to rotate in reverse direction by inputting forward pulse signals, reverse pulse signals, and PWM signals to the second power supply module 520.

[0028] In some embodiments, the switch window current detection module 100 includes an operational amplifier U1, resistors R1, R2, R3, R4, R5, and R6. The operational amplifier U1 can be an LM358 operational amplifier. The first input terminal of the operational amplifier U1 is electrically connected to the source (S) of the MOSFET Q3. The first inverting input terminal of the operational amplifier U1 is electrically connected to one end of resistor R2 and one end of resistor R3, respectively. The first output terminal of the operational amplifier U1 is electrically connected to the other end of resistor R3 and one end of resistor R1, respectively. The other end of resistor R1 is electrically connected to the main control module. The second input terminal of the operational amplifier U1 is electrically connected to the source (S) of the MOSFET Q6. The second inverting input terminal of the operational amplifier U1 is electrically connected to one end of resistor R5 and one end of resistor R6, respectively. The second output terminal of the operational amplifier U1 is electrically connected to the other end of resistor R6 and one end of resistor R4, respectively. The other end of resistor R4 is electrically connected to the main control module. The structure is simple and facilitates the main control module to monitor the current of the main screw motor M0 and the auxiliary screw motor M1.

[0029] In some embodiments, the window lock communication module 300 includes a resistor R10, a transistor Q4, and a transistor Q5. The collector of transistor Q4 is electrically connected to the receiving end of the main control module. The base of transistor Q4 is connected to the collector of transistor Q5 and the window lock via a series resistor R10. The base of transistor Q5 is electrically connected to the transmitting end of the main control module. The emitter of transistor Q5 is connected to the operating voltage, and the emitter of transistor Q4 is grounded. The window lock communication module 300 sends window lock status information to the main control module.

[0030] In some embodiments, the lock window current detection module 300 includes an operational amplifier U4, resistors R11, R12, and R13, and a capacitor C5. The input terminal of the operational amplifier U4 is electrically connected to the collector of the transistor Q5. The inverting input terminal of the operational amplifier U4 is electrically connected to one end of resistor R11 and one end of resistor R12, respectively. The output terminal of the operational amplifier U4 is electrically connected to the other end of resistor R11 and one end of resistor R13, respectively. The other end of resistor R13 is electrically connected to the main control module and one end of capacitor C5, respectively. The other end of capacitor C5 is grounded.

[0031] In some embodiments, a Hall signal receiving module 600 is also included for receiving the rotational speeds of the main screw motor M0 and the auxiliary screw motor M1. The Hall signal receiving module 600 includes serial ports CN1 and CN2 of type KF143. Serial port CN1 is electrically connected to the main screw motor M0, and serial port CN2 is electrically connected to the auxiliary screw motor M1.

[0032] like Figure 3 As shown, in some embodiments, the window opening / closing speed detection module 200 includes operational amplifiers U2 and U3, resistors R7, R8, and R9, and capacitors C1, C2, C3, and C4. Operational amplifiers U2 and U3 can be XL339 operational amplifiers. The positive input terminal of operational amplifier U2 is electrically connected to one end of resistor R7 and one end of capacitor C1, respectively. The other end of resistor R7 is electrically connected to the main screw motor M0. The negative input terminal of operational amplifier U2 is only connected to the operating voltage via resistor R8 in series. The output terminal of operational amplifier U2 is connected to one end of capacitor C2 and the main control module, respectively. Electrical connections: The negative input terminal of operational amplifier U3 is electrically connected to resistor R8, and the positive input terminal of operational amplifier U3 is electrically connected to one end of resistor R9 and one end of capacitor C3 respectively. The other end of resistor R9 is electrically connected to the negative screw motor. The output terminal of operational amplifier U3 is electrically connected to one end of capacitor C4 and the main control module respectively. The other ends of capacitors C1, C2, C3 and C4 are grounded respectively. Operational amplifiers U2 and U3 amplify the current corresponding to the speed of the main screw motor and the auxiliary screw motor, which facilitates the detection of the main control module and improves synchronization.

[0033] In some embodiments, a 485 communication module 700 electrically connected to the main control module is also included to facilitate signal transmission and subsequent program upgrades.

[0034] like Figure 4 As shown, the control method based on the above-mentioned electric window control system comprises the following steps: Step S1, the main control module receives a window opening signal; Step S2, the main control module controls the window locking motor M2 to operate to open the window lock; Step S3, the main control module controls the main screw motor M0 and the auxiliary screw motor M1 to operate to push the window open; Step S4, the main control module receives a window closing signal; Step S5, the main control module controls the main screw motor M0 and the auxiliary screw motor M1 to operate to pull the window back; Step S6, the main control module controls the window locking motor M2 to operate to close the window lock; according to this logical sequence, the logical sequence processing between the screw motor and the electronic window lock is realized.

[0035] It will be readily understood by those skilled in the art that the above preferred methods can be freely combined and superimposed without conflict.

[0036] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct or indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An electric window control system, characterized in that, include: The main control module is capable of receiving window opening and closing signals; The system includes a main screw motor, an auxiliary screw motor, and a window locking motor, all of which are electrically connected to the main control module. A switch window current detection module (100) is provided, wherein the input terminal of the switch window current detection module (100) is electrically connected to the main screw motor and the auxiliary screw motor respectively, and the output terminal of the switch window current detection module (100) is electrically connected to the main control module. A window opening / closing speed detection module (200) is electrically connected to the main control module; a window locking current detection module (300) is electrically connected to the window locking motor. The output terminal of the lock window current detection module (300) is electrically connected to the main control module. A window lock communication module (400) is provided, one end of which is electrically connected to the main control module, and the other end of which is electrically connected to the window lock to detect the open and closed state of the window lock. It also includes a power supply module for a window switch motor, which is electrically connected to the main screw motor, the auxiliary screw motor and the window switch current detection module (100) respectively; The power supply module for the switch window motor includes a first power supply module (510) for supplying power to the main screw motor and a second power supply module (520) for supplying power to the auxiliary screw motor. The first power supply module (510) includes a relay J1, a transistor Q1, a transistor Q2, and a MOSFET Q3. The base of transistor Q1 is electrically connected to the reverse pulse signal terminal of the main control module, the collector of transistor Q1 is electrically connected to the relay J1, the emitter of transistor Q1 and the emitter of transistor Q2 are respectively grounded, the base of transistor Q2 is electrically connected to the forward pulse signal terminal of the main control module, the collector of transistor Q2 is electrically connected to the relay J1, the gate of MOSFET Q3 is electrically connected to the PWM signal terminal of the main control module, the drain of MOSFET Q3 is electrically connected to the relay J1, and the source of MOSFET Q3 is electrically connected to the input terminal of the switch window current detection module. The second power supply module (520) includes a relay J2, a transistor Q4, a transistor Q5, and a MOSFET Q6. The base of transistor Q4 is electrically connected to the inverting pulse signal terminal of the main control module, the collector of transistor Q4 is electrically connected to the relay J2, the emitter of transistor Q4 and the emitter of transistor Q5 are respectively grounded, the base of transistor Q5 is electrically connected to the forward pulse signal terminal of the main control module, the collector of transistor Q5 is electrically connected to the relay J2, the gate of MOSFET Q6 is electrically connected to the PWM signal terminal of the main control module, the drain of MOSFET Q6 is electrically connected to the relay J2, and the source of MOSFET Q6 is electrically connected to the input terminal of the switch window current detection module. The switch window current detection module (100) includes an operational amplifier U1, resistors R1, R2, R3, R4, R5, and R6. The first input terminal of the operational amplifier U1 is electrically connected to the source (S) of the MOSFET Q3. The first inverting input terminal of the operational amplifier U1 is electrically connected to one end of resistor R2 and one end of resistor R3. The first output terminal of the operational amplifier U1 is electrically connected to the other end of resistor R3 and one end of resistor R1. The other end of resistor R1 is electrically connected to the main control module. The second input terminal of the operational amplifier U1 is electrically connected to the source (S) of the MOSFET Q6. The second inverting input terminal of the operational amplifier U1 is electrically connected to one end of resistor R5 and one end of resistor R6. The second output terminal of the operational amplifier U1 is electrically connected to the other end of resistor R6 and one end of resistor R4. The other end of resistor R4 is electrically connected to the main control module. The window opening / closing speed detection module (200) includes operational amplifiers U2 and U3, resistors R7, R8, and R9, and capacitors C1, C2, C3, and C4. The positive input terminal of operational amplifier U2 is electrically connected to one end of resistor R7 and one end of capacitor C1, and the other end of resistor R7 is electrically connected to the main screw motor. The negative input terminal of operational amplifier U2 is connected to the working voltage via resistor R8 connected in series. The output terminal of operational amplifier U2 is electrically connected to one end of capacitor C2 and the main control module. The negative input terminal of operational amplifier U3 is electrically connected to resistor R8. The positive input terminal of operational amplifier U3 is electrically connected to one end of resistor R9 and one end of capacitor C3, and the other end of resistor R9 is electrically connected to the negative screw motor. The output terminal of operational amplifier U3 is electrically connected to one end of capacitor C4 and the main control module. The other ends of capacitors C1, C2, C3, and C4 are grounded. The lock window current detection module (300) includes an operational amplifier U4, resistors R11, R12, and R13, and a capacitor C5. The input terminal of the operational amplifier U4 is electrically connected to the collector of the transistor Q5. The inverting input terminal of the operational amplifier U4 is electrically connected to one end of resistor R11 and one end of resistor R12, respectively. The output terminal of the operational amplifier U4 is electrically connected to the other end of resistor R11 and one end of resistor R13, respectively. The other end of resistor R13 is electrically connected to the main control module and one end of capacitor C5, respectively. The other end of capacitor C5 is grounded.

2. The electric window control system according to claim 1, characterized in that: The window lock communication module (400) includes a resistor R10, a transistor Q4, and a transistor Q5. The collector of transistor Q4 is electrically connected to the receiving end of the main control module, and the base of transistor Q4... The collector of transistor Q5 is connected to the window lock via a series resistor R10. The base of transistor Q5 is connected to the transmitter of the main control module. The emitter of transistor Q5 is connected to the operating voltage. The emitter of transistor Q4 is grounded.

3. The electric window control system according to claim 1, characterized in that: It also includes electrical connection to the main control module. The 485 communication module (700).

4. A control method, based on the electric window control system according to any one of claims 1 to 3, comprising the following steps: The main control module receives the window opening signal; The main control module controls the window lock motor to operate in order to open the window lock; The main control module controls the operation of the main screw motor and the auxiliary screw motor to push the window open; the main control module receives a window closing signal; The main control module controls the main screw motor and the auxiliary screw motor to pull the window back; the main control module controls the window lock motor to close the window lock.

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