Electric double-inner-swing door controller

Abstract

The utility model discloses an electric double-inner-swing door controller. The electric double-inner-swing door controller comprises a main control module, a communication module, a driving module, a key module, a detection module and a power supply module, the main control module is a main control chip used for receiving and sending signals and carrying out data processing; the communication module is used for connecting the upper computer and the main control module; the driving module is used for driving the door leaf motor to rotate according to the control signal of the main control module; the detection module is used for detecting the position of the inner swing door and transmitting the position to the main control module; the key module is used for controlling opening and closing of the inner swing door; the power supply module is used for connecting an external power supply and providing working voltage for other modules. Through independent control of the front and rear pages, the difficulty of mechanism adjustment is reduced; the brushless motor has no abrasion of an electric brush, so that the service life of the motor is prolonged; position measurement is carried out through a Hall sensor arranged on the brushless motor, so that a speed reduction point position on the mechanism can be omitted, and the mechanism is simplified.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of door controllers, and particularly relates to an electric double-in-swing door controller. BACKGROUND

[0002] At present, city buses are developing rapidly, and the door system is mainly composed of pneumatic in-swing doors and pneumatic out-swing doors, but there are defects such as poor sealing, low safety and low riding comfort. It has become a trend of the industry to equip city buses with electric in-swing doors with good sealing, high safety and high riding comfort.

[0003] The original electric in-swing door is not stable due to the influence of the air source, and the noise is large during the opening and closing process, the anti-pinch function is easy to fail, and there is a certain safety hazard; the cylinder drive is converted from electricity to gas, and then from gas to kinetic energy, which causes a certain waste of energy; and the existing in-swing door will vibrate or have obvious impact during the opening and closing process. CONTENT OF THE UTILITY MODEL

[0004] The application provides an electric double-in-swing door controller to solve the above technical problems.

[0005] To solve the above technical problems, one technical scheme adopted by the application is: an electric double-in-swing door controller, comprising a main control module, a communication module, a driving module, a key module, a detection module and a power module; the main control module is a main control chip for receiving and sending signals and processing data; the communication module is used to connect the host computer and the main control module; the driving module is used to drive the rotation of the door leaf motor according to the control signal of the main control module; the detection module is used to detect the position of the in-swing door and transmit it to the main control module; the key module is used to control the opening and closing of the in-swing door; the power module is used to connect an external power supply and provide working voltage to the remaining modules; the main control module is connected with the communication module, the driving module, the key module, the detection module and the power module respectively.

[0006] Further, the driving module comprises a first driver and a second driver, the first driver is connected to control the door leaf motor of the front door, and the second driver is connected to control the door leaf motor of the rear door.

[0007] Further, the communication module comprises a communication interface and a debugging interface, the communication interface is used to connect the vehicle control system; and the debugging interface is used to connect the host computer.

[0008] Further, the key module comprises a key detection component and a switch component, the key detection component is used to detect the state of the switch component.

[0009] Further, the detection module is a switch detection sensor, which is used to detect the switch signals of the travel switch, the anti-pinch switch and the vehicle speed.

[0010] Further, the door page motor is a brushless motor, and the brushless motor comprises a Hall sensor for detecting a rotor position.

[0011] Further, the first driver and the second driver each comprise an inverter and a current feedback module; the current feedback module is configured to detect a current feedback value of the brushless motor; and the inverter is configured to output a driving voltage to the brushless motor according to the current feedback value and the rotor position.

[0012] The application has the following advantages: the independent control of the front and rear pages reduces the difficulty of mechanism adjustment; the brushless motor has no brush wear, thereby increasing the service life of the motor; the position measurement by the Hall sensor provided in the brushless motor can eliminate the speed reduction point on the mechanism, thereby simplifying the mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural block diagram of an embodiment of the electric double-in-swing door controller of the application;

[0014] Figure 2 is a structural block diagram of an embodiment of the driving module in Figure 1

[0015] Figure 3 is a structural block diagram of an embodiment of the communication module in Figure 1

[0016] Figure 4 is a structural block diagram of an embodiment of the key module in Figure 1

[0017] Figure 5 is a structural block diagram of an embodiment of the first driver in Figure 2 DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application.

[0019] Referring to Figure 1 , Figure 1 ​​​​This is a structural block diagram of an embodiment of the electric double inner swing door controller of the present application, which includes a main control module 1, a communication module 2, a drive module 3, a button module 4, a detection module 5 and a power module 6; the main control module 1 is a main control chip for receiving and sending signals and performing data processing; the communication module 2 is used to connect the host computer and the main control module 1; the drive module 3 is used to drive the rotation of the door leaf motor according to the control signal of the main control module 1; the detection module 5 is used to detect the position of the inner swing door and transmit it to the main control module 1; the button module 4 is used to control the opening and closing of the inner swing door; the power module 6 is used to connect to an external power supply and provide working voltage to the remaining modules; the main control module 1 is connected to the communication module 2, the drive module 3, the button module 4, the detection module 5 and the power module 6 respectively. The main control module 1 in the above design can select a main control chip, which can mainly receive the control signal sent by the driver of the whole vehicle and convert the control signal into a corresponding switch signal and send it to the drive module 3 to control the opening and closing of different leaf doors.

[0020] See Figure 2 , Figure 2 yes Figure 1 Figure 1 shows a block diagram of an embodiment of a drive module. Drive module 3 includes a first driver 31 and a second driver 32. The first driver 31 is connected to the door motor M1 for controlling the front door, while the second driver 32 is connected to the door motor M2 for controlling the rear door. This design uses the main control module 1 to independently control the opening and closing of the front and rear doors of the inward-swinging door. Both doors are controlled by the door motors, eliminating the influence of the air source on traditional inward-swinging doors and ensuring stable opening and closing.

[0021] See Figure 3 , Figure 3 yes Figure 1 The structural block diagram of an embodiment of the communication module in the communication module 2. The communication module 2 includes a communication interface 21 and a debugging interface 22. The communication interface 21 is used to connect to the vehicle control system; the debugging interface 22 is used to connect to the host computer. The communication interface 21 in the above design is used to connect to the control system of the whole vehicle. The inner swing doors in different positions can be controlled by separate door controllers. Each inner swing door receives the opening and closing signal sent by the driver end in the vehicle system through the communication interface 21, and transmits it to the main control module 1, thereby sending a control signal to the drive module 3. The debugging interface 22 consists of a serial port and an SWD interface. The serial port transmits data through the modbus protocol and is used for reading and writing relevant data; in addition to being used for program downloading, the SWD interface is also used for waveform printing of data. When debugging the motor parameters, the response curves of the speed loop and the rotational speed loop can be printed through the J-Scope software, and the relevant parameters can be adjusted according to the response curve. The adjusted parameters are written to the door controller through the modbus interface to realize online parameter adjustment.

[0022] See Figure 4 , Figure 4 yesFigure 1 The structure diagram of one embodiment of the key module in the key module 4. The key module 4 includes a key detection component 41 and a switch component 42, and the key detection component 41 is used to detect the state of the switch component 42. The switch component 42 in the above design is generally an emergency switch and the like, so as to control the opening and closing of the door in an emergency. The key detection component 41 is used to detect the switch state of the switch component 42, so as to send an emergency door opening signal to the main control module 1, thereby facilitating the control of the opening and closing of the front and rear door when the whole vehicle system is disconnected.

[0023] The detection module 5 is a switch detection sensor, which is used to detect the switch signals of the travel switch, the anti-pinch switch and the vehicle speed. The detection module 5 in the above design is used to detect the switch signals of the travel switch, the anti-pinch switch, the vehicle speed signal and the like. When the anti-pinch signal is detected when the door is closed, the door is automatically opened. When the vehicle speed signal is detected, the door opening signal is shielded to prevent the door from being opened when the vehicle is running. The travel switch is used for limit protection and position signal zero of the mechanism.

[0024] Referring to Figure 5 , Figure 5 is Figure 2 The structure diagram of one embodiment of the first driver in the first driver 31. The door page motor is a brushless motor, which includes a Hall sensor 35 for detecting the rotor position. The front and rear door in the above design are respectively controlled by a brushless motor with HALL. The Hall sensor 35 is also used as a travel counter of the motor, which is used for deceleration operation at the end of the travel, can replace the deceleration point position of the mechanism, and simplifies the mechanism. In order to improve the accuracy of position and speed feedback, a four-pole brushless motor is adopted.

[0025] The first driver 31 and the second driver 32 each include an inverter 33 and a current feedback module 34. The current feedback module 34 is used to detect the current feedback value of the brushless motor. The inverter 33 outputs a driving voltage to the brushless motor according to the current feedback value and the rotor position. The brushless motor drive in the above design adopts a double closed loop form of current loop + speed loop. The outer layer is a speed loop, and the speed feedback is realized through the Hall sensor 35. The given value of the current loop is calculated according to the speed deviation. The current loop calculates the final PWM duty cycle output to the inverter 33 according to the current value fed back by the current feedback module 34. The inverter 33 determines the current output phase sequence according to the rotor position detected by the Hall sensor 35, and outputs the driving voltage to the motor, so as to realize speed control. The control parameters of the speed loop and the current loop can be calibrated online through the debugging interface 22.

[0026] Specific working principle, the whole vehicle control system can set the ID of different door controllers through four address lines to distinguish different door controllers installed on the same vehicle, and send instructions to the door controller corresponding to the ID to realize the control of the corresponding door. The action sequence when opening the door is to open the front page first, and then open the back page; the action sequence when closing the door is to close the back page first, and then close the front page.

[0027] After running to the limit point, the brushless motor switches to the current loop to continue running to the locked-rotor position with the set torque, realizing the locking operation after the door is opened to the position. After locking, the door controller releases the brake coil on the motor, maintains the locking state of the mechanism through a mechanical method, and then closes the motor. The motor locking operation can reduce the installation accuracy of the limit point, can install the limit point before the actual limit, and prevents the situation that the limit switch cannot be triggered when in the critical position.

[0028] The present application reduces the difficulty of mechanism adjustment by independent control of the front and back pages; the brushless motor has no brush wear, increasing the service life of the motor; the position measurement is performed by the Hall sensor provided by the brushless motor, which can save the speed reduction point on the mechanism and simplify the mechanism.

[0029] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An electric double inner swing door controller, characterized in that: include: Main control module, communication module, drive module, button module, detection module and power module; The main control module is a main control chip used to receive and send signals and perform data processing; the communication module is used to connect the host computer and the main control module; the drive module is used to drive the rotation of the door leaf motor according to the control signal of the main control module; the detection module is used to detect the position of the inner swing door and transmit it to the main control module; the button module is used to control the opening and closing of the inner swing door; the power supply module is used to connect to an external power supply and provide operating voltage to the other modules; The main control module is connected to the communication module, the driving module, the button module, the detection module and the power module respectively.

2. The electric double inward swing door controller according to claim 1, characterized in that: The driving module includes a first driver and a second driver, the first driver is connected to control the door leaf motor of the front door, and the second driver is connected to control the door leaf motor of the rear door.

3. The electric double inward swing door controller according to claim 1, characterized in that: The communication module includes a communication interface and a debugging interface. The communication interface is used to connect to the vehicle control system; the debugging interface is used to connect to the host computer.

4. The electric double inward swing door controller according to claim 1, characterized in that: The key module includes a key detection component and a switch component, and the key detection component is used to detect the state of the switch component.

5. The electric double inward swing door controller according to claim 1, characterized in that: The detection module is a switch detection sensor, which is used to detect switch signals of a travel switch, an anti-pinch switch and a vehicle speed.

6. The electric double inward swing door controller according to claim 2, characterized in that: The door leaf motor is a brushless motor, and the brushless motor includes a Hall sensor for detecting the position of the rotor.

7. The electric double inward swing door controller according to claim 6, characterized in that: The first driver and the second driver both include an inverter and a current feedback module; The current feedback module is used to detect the current feedback value of the brushless motor; the inverter outputs a driving voltage to the brushless motor according to the current feedback value and the rotor position.

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