Electric turnover seat control system and method

Abstract

The invention provides an electric turnover seat control system and method, the system comprises turnover seats, sub-control modules and a master control module, each turnover seat is provided with one sub-control module, the sub-control modules control the turnover seats to turn over, the multiple sub-control modules are electrically connected in parallel, and the multiple sub-control modules are electrically connected with the master control module in series. The sub-control module comprises a motor, a controller and a rotating assembly, the controller controls the motor, and the motor drives the rotating assembly and drives the turnover seat to turn over. Through centralized control of overturning and folding of the seats, available space in the vehicle can be adjusted in a maneuvering mode, and passenger flow pressure is relieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail vehicles, and in particular relates to a control system and method for an electric flip seat. Background Art

[0002] As the pace of urban life accelerates, subways and other rail transit modes are becoming more and more popular, and trains are often crowded during peak hours in the morning and evening. Existing subway trains use fixed passenger seats, and the available space in the car cannot be changed. During peak passenger flow, the available space in the car cannot be expanded according to the increased number of passengers, and the corresponding passenger flow pressure cannot be alleviated.

[0003] In view of the above reasons, it is necessary to provide a seat control system that can flexibly adjust the passenger capacity according to the train space to solve the problems in the prior art. Summary of the invention

[0004] To solve the above problems, the present invention provides an electric flip seat control system, including a flip seat, a sub-control module and a main control module. Each flip seat is equipped with a sub-control module, which controls the flipping of the flip seat. Multiple sub-control modules are electrically connected in parallel, and multiple sub-control modules are electrically connected in series with the main control module.

[0005] Preferably, the sub-control module includes a motor, a controller and a rotating assembly. The controller controls the motor, and the motor drives the rotating assembly and drives the flip seat to flip.

[0006] Preferably, the rotating assembly includes a gear device and a limiting device, the motor drives the gear device and drives the flip seat to flip, and the seat flips into place and contacts the limiting device.

[0007] Preferably, the gear device is a gear set, and the limit device includes a bridge arm roller, an upper limit switch and a lower limit switch.

[0008] The invention also provides a method for controlling an electric flip seat, which comprises the following steps.

[0009] Step S1: The system is powered on, the master control module sends an unlocking signal to each sub-control module, and the controller in the sub-control module starts the motor according to the unlocking signal;

[0010] Step S2: The motor drives the rotating assembly to rotate and drives the seat cushion to flip forward. When the seat cushion flips to the right position, the upper limit switch is triggered. The upper limit switch controls the motor to stop rotating and the seat unfolds.

[0011] Step S3: the master control module sends a locking signal to each sub-control module, and the controller in the sub-control module starts the motor according to the locking signal;

[0012] Step S4: The motor drives the rotating assembly to rotate and drives the seat cushion to flip in the opposite direction. When the seat cushion flips into place, it triggers the lower limit switch. The lower limit switch controls the motor to stop rotating and the seat is folded.

[0013] Preferably, step S2 also includes obtaining the motor current value. If the current value is greater than a preset value and the duration is greater than a preset time, the motor drives the rotating component to rotate in the opposite direction of the current rotation direction, and rotates in the opposite direction to a certain angle and then rotates in the current direction again.

[0014] Preferably, step S4 also includes obtaining the motor current value. If the current value is greater than a preset value and the duration is greater than a preset time, the motor drives the rotating component to rotate in the opposite direction of the current rotation direction, and rotates in the opposite direction to a certain angle and then rotates in the current direction again.

[0015] Preferably, after the motor drives the rotating assembly to rotate in the opposite direction to a certain angle, it enters a standby state, and then rotates in the current direction again after a specified time.

[0016] Preferably, if after the motor rotates again in the current direction, the acquired motor current value is still greater than the preset value, the duration is greater than the preset time, and the number of repetitions is greater than the preset number, the system issues an alarm.

[0017] The electric flip seat control system provided by the present invention includes a flip seat, a sub-control module and a master control module. Each flip seat is equipped with a sub-control module, which controls the flipping of the flip seat. Multiple sub-control modules are electrically connected in parallel, and multiple sub-control modules are electrically connected in series with the master control module. The sub-control module includes a motor, a controller and a rotating assembly. The controller controls the motor, and the motor drives the rotating assembly and drives the flip seat to flip. By centrally controlling the flipping and folding of the seats, the available space in the car can be adjusted flexibly, alleviating the pressure of passenger flow.

[0018] At the same time, the electric flip seat control method provided by the present invention is that the main control module sends an unlocking or locking signal to each sub-control module, and the controller in the sub-control module starts the motor according to the unlocking or locking signal; the motor drives the rotating component to rotate and drives the seat cushion to flip forward, and the seat cushion flips to the right position to trigger the upper limit switch, and the upper limit switch controls the motor to stop rotating and the seat unfolds; or the motor flips in the opposite direction to complete the seat folding. By obtaining the motor current value and making a judgment, it rotates in the opposite direction when the current direction rotation cannot be completed, and an alarm is issued in time. This makes the automatic flip seat more humane and enhances the stability of the system.

[0019] After reading the detailed description of the embodiments of the present application in conjunction with the accompanying drawings, other features and advantages of the present application will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A schematic diagram of the structure of a flip seat and a sub-control module of an electric flip seat control system provided in a preferred embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the gear structure of the electric flip seat control system provided by a preferred embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of a limit device of an electric flip seat control system provided by a preferred embodiment of the present invention;

[0023] Figure 4 The electrical schematic diagram of the main control module of the electric flip seat control system provided by the preferred embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the combination of multiple sub-control modules of the electric flip seat control system provided by the preferred embodiment of the present invention;

[0025] Figure 6 A schematic diagram of a single sub-control module of an electric flip seat control system provided in a preferred embodiment of the present invention.

[0026] Figures 1 to 3 Middle: 1-seat back, 2-seat cushion, 3-motor, 4-rotation assembly, 21-rotation arm, 41-gear set, 42-bridge arm roller, 43-upper limit switch, 44-lower limit switch, 45-coupling. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Please combine Figures 1 to 6 The electric flip seat control system provided by the preferred embodiment of the present invention includes a flip seat, a sub-control module and a main control module. Each flip seat is installed with a sub-control module, which controls the flipping of the flip seat. Multiple sub-control modules are electrically connected in parallel, and multiple sub-control modules are electrically connected in series with the main control module.

[0029] Specifically, the flip seat includes a seat back 1 and a seat cushion 2, and the sub-control module is installed behind the seat back 1. The sub-control module includes a motor 3, a controller (not shown) and a rotating assembly 4. The controller controls the motor 3, and the motor 3 drives the rotating assembly 4 and drives the seat cushion 2 of the flip seat to flip.

[0030] Here, the rotating assembly 4 includes a gear device and a limit device. The motor 3 drives the gear device and drives the flip seat to flip. The seat flips to the right position and contacts the limit device. In this embodiment, a rotating arm 21 is installed on the side of the seat cushion 2. The gear device drives the seat cushion 2 to flip through the rotating arm 21. The gear device is a gear set 41. The gear set 41 includes three gears: large, medium and small. The motor 3 drives the medium gear and the large gear in sequence through the small gear. The large gear is connected to the rotating arm 21 and drives the rotating arm 21 to drive the seat cushion 2 to flip.

[0031] The limit device includes a bridge arm roller 42, an upper limit switch 43 and a lower limit switch 44, and also includes a coupling 45. The coupling 45 is installed in the rotating arm 21. When the seat cushion 2 is flipped, the coupling 45 rotates at the same time and drives the bridge arm roller 42 to rotate. When the seat cushion 2 is unfolded and closed, the bridge arm roller 42 rotates to contact the upper limit switch 43 and the lower limit switch 44 respectively. At this time, the upper limit switch 43 is turned on, or the lower limit switch 44 is turned on, and both control the motor 3 to lose power and stop, that is, the seat stops flipping. The present invention uses a connector to control the connection and disconnection of the upper limit switch 43, the lower limit switch 44 and the motor 3. This embodiment uses a 15-hole pin connector. Figure 5 As shown, S2 corresponds to the lower limit switch 44, and S3 corresponds to the upper limit switch 43.

[0032] In addition, the back of the seat cushion 2 provided by the present invention is a curved surface, which is adapted to the curve of the human body. When the seat is folded, it can provide a comfortable leaning space for passengers. At the same time, the flip seat and sub-control module used in the system are all waterproof designs, which can better adapt to daily operations.

[0033] The invention also provides a method for controlling an electric flip seat, which comprises the following steps.

[0034] Step S1: The system is powered on, and the master control module sends an unlocking signal to each sub-control module, and the controller in the sub-control module starts the motor according to the unlocking signal.

[0035] Specifically, the master control module is operated by the train driver's cab. The master control module sends signals to each sub-control module and receives signals sent by each sub-control module.

[0036] Step S2: The motor drives the rotating assembly to rotate and drives the seat cushion to flip forward. When the seat cushion flips into place, it triggers the upper limit switch. The upper limit switch controls the motor to stop rotating and the seat unfolds.

[0037] Specifically, each sub-control module is equipped with a sub-control circuit controller, please refer to Figure 5 The upper limit switch triggers the opening position switch S3 accordingly, and the sub-control module controls the motor 3 to power off and stop.

[0038] In this step, the current value of the motor 3 is obtained. If the current value is greater than a preset value and the duration is greater than a preset time, the motor 3 drives the rotating assembly 4 to rotate in the opposite direction of the current rotation direction, and rotates in the opposite direction to a certain angle before re-rotating in the current direction. Here, the current value of the motor 3 can be obtained in real time or irregularly, so that the state of the motor 3 can be monitored at any time to avoid accidental squeezing accidents during the unfolding of the seat.

[0039] After the motor 3 drives the rotating assembly 4 to rotate in the opposite direction to a certain angle, it enters the standby state and rotates in the current direction again after a specified time. If the motor 3 rotates in the current direction again, the obtained motor 3 current value is still greater than the preset value, the duration is greater than the preset time, and the number of repetitions is greater than the preset number, the system will issue an alarm.

[0040] Step S3: the master control module sends a locking signal to each sub-control module, and the controller in the sub-control module starts the motor according to the locking signal.

[0041] Specifically, the locking signal, which is the corresponding signal for the seat folding action, is still issued by the driver's cab to operate the master control module.

[0042] Step S4: The motor drives the rotating assembly to rotate and drives the seat cushion to flip in the opposite direction. When the seat cushion flips into place, it triggers the lower limit switch. The lower limit switch controls the motor to stop rotating and the seat is folded.

[0043] In this step, the current value of the motor 3 is obtained. If the current value is greater than the preset value and the duration is greater than the preset time, the motor 3 drives the rotating component 4 to rotate in the opposite direction of the current rotation direction, and rotates in the opposite direction to a certain angle and then rotates in the current direction again.

[0044] After the motor 3 drives the rotating assembly 4 to rotate in the opposite direction to a certain angle, it enters the standby state and rotates in the current direction again after a specified time. If the motor rotates in the current direction again, the motor current value obtained is still greater than the preset value, the duration is greater than the preset time, and the number of repetitions is greater than the preset number, the system will issue an alarm.

[0045] For example, after the master control module sends an unlocking signal, the motor starts. The seat touches an obstacle during the opening process, and the seat cushion cannot flip into place. At this time, the rotation of the motor is hindered, and a stall current is generated. The stall current is greater than the normal current of the motor. When the controller of the sub-control module detects the stall current value and continues for a specified time, it determines that the seat encounters an obstacle when opening, and then controls the motor to rotate in the opposite direction for a certain angle, that is, the seat cushion flips in the folding direction and stays for a period of time to allow the passenger to eliminate the obstacle. After that, the motor rotates again in the original direction of rotation. If the stall current value is generated again and exceeds the specified time, the above operation is repeated until the seat is opened and touches the upper limit switch. If the number of repeated operations exceeds three times, the system determines an alarm, and the controller sends an alarm to the master control module. The operator checks the fault according to the alarm notification. The process of eliminating obstacles when the seat is folded is the same as the above principle, and will not be repeated here.

[0046] The electric flip seat control system provided by the preferred embodiment of the present invention includes a flip seat, a sub-control module and a main control module. A sub-control module is installed on each flip seat, and the sub-control module controls the flipping of the flip seat. Multiple sub-control modules are electrically connected in parallel, and multiple sub-control modules are electrically connected in series with the main control module. When a single sub-control module fails, it will not affect the sub-control modules on other seats. The sub-control module includes a motor, a controller and a rotating component. The controller controls the motor, and the motor drives the rotating component and drives the flip seat to flip. By centrally controlling the flipping and folding of the seats, the available space in the vehicle can be flexibly adjusted to meet the operational needs of different time periods.

[0047] In the electric flip seat control method provided by the preferred embodiment of the present invention, the main control module sends an unlocking or locking signal to each sub-control module, and the controller in the sub-control module starts the motor according to the unlocking or locking signal; the motor drives the rotating component to rotate and drives the seat cushion to flip forward, and the seat cushion flips into place to trigger the upper limit switch, and the upper limit switch controls the motor to stop rotating and the seat unfolds; or the motor flips in the opposite direction to complete the seat folding. In this way, the seats are centrally controlled to open or fold automatically, and faults between seats will not affect each other. By obtaining the motor stall current value and judging the obstacle according to the time, an obstacle elimination mechanism is provided, and a prompt is issued to the operator when the obstacle cannot be automatically eliminated. While centralized operation, the system is more user-friendly.

[0048] The above description is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An electric flip seat control system, characterized in that: It includes a flip seat, a sub-control module and a main control module. Each flip seat is installed with a sub-control module, which controls the flipping of the flip seat. Multiple sub-control modules are electrically connected in parallel, and multiple sub-control modules are electrically connected in series with the main control module.

2. The electric flip seat control system according to claim 1, characterized in that: The sub-control module includes a motor, a controller and a rotating assembly. The controller controls the motor, and the motor drives the rotating assembly and drives the flip seat to flip.

3. The electric flip seat control system according to claim 1 or 2, characterized in that: The rotating assembly includes a gear device and a limiting device. The motor drives the gear device and drives the flip seat to flip. The seat flips into place and contacts the limiting device.

4. The electric flip seat control system according to claim 3, characterized in that: The gear device is a gear set, and the limit device includes a bridge arm roller, an upper limit switch and a lower limit switch.

5. The control method of the system according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. The system is powered on, and the master control module sends an unlocking signal to each sub-control module, and the controller in the sub-control module starts the motor according to the unlocking signal; S2, the motor drives the rotating assembly to rotate and drive the seat cushion to flip forward. When the seat cushion flips to the right position, it triggers the upper limit switch. The upper limit switch controls the motor to stop rotating and the seat unfolds. S3, the master control module sends a locking signal to each sub-control module, and the controller in the sub-control module starts the motor according to the locking signal; S4, the motor drives the rotating assembly to rotate and drives the seat cushion to flip in the opposite direction. When the seat cushion flips into place, it triggers the lower limit switch. The lower limit switch controls the motor to stop rotating and the seat is folded.

6. The electric flip seat control method according to claim 5, characterized in that: Steps S2 and S4 also include obtaining the motor current value. If the current value is greater than a preset value and the duration is greater than a preset time, the motor drives the rotating component to rotate in the opposite direction of the current rotation direction, and rotates in the opposite direction to a certain angle and then rotates in the current direction again.

7. The electric flip seat control method according to claim 6, characterized in that: After the motor drives the rotating component to rotate in the opposite direction to a certain angle, it enters the standby state and rotates in the current direction again after a specified time.

8. The electric flip seat control method according to claim 6 or 7, characterized in that: If the motor current value obtained is still greater than the preset value after the motor rotates in the current direction again, the duration is greater than the preset time, and the number of repetitions is greater than the preset number, the system will issue an alarm.

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