Cab door control device and method and vehicle

Abstract

The invention discloses a cab door control device and method and a vehicle. The control device comprises a first controller, a second controller, a card reader, a first power source and a second power source. The first power supply is connected with the second relay through a first normally closed contact of the first relay, and a first normally open contact of the second relay is connected with the first controller; the first power supply is connected with the first controller through a second normally closed contact of the first relay; the first power supply is connected with the first controller through a second normally open contact and a third normally open contact of the second relay; the first power supply is connected with the second controller; the card reader is connected with the first controller and the second relay through the second controller; the second power source is connected with the first controller through a normally-open contact of the first relay, and the first controller is connected with the door allowing signal train line and the zero-speed signal train line. The problem that a contact of a traditional electric key device is ablated and damaged due to large instantaneous contact current is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle door control, and in particular relates to a driver's cab door control device and control method, and a vehicle. Background Art

[0002] Existing urban rail trains all use mechanical keys to operate the electric key device of the driver's cab door, which turns on the drive circuit of the driver's cab door, thereby driving the driver's cab door to open automatically. At the moment when the drive circuit of the driver's cab door is turned on, the current shock is large, which can easily cause the contacts of the electric key device to burn, and then cause damage to the electric key device, making it impossible to open and close the driver's cab door normally. Summary of the invention

[0003] The object of the present invention is to provide a driver's cab door control device and control method, and a vehicle, so as to solve the problem that the traditional driver's cab door control method is easily damaged by a large current shock, and the driver's cab door cannot be opened and closed normally.

[0004] The present invention solves the above technical problems through the following technical solutions: a driver's cab door control device, comprising a first controller, a second controller, a first relay, a second relay, a card reader, a first power supply, a second power supply and a power conversion module; the output end of the first power supply is connected to the A1 end of the second relay and the first normally open contact of the second relay through the first normally closed contact of the first relay, and the first normally open contact of the second relay is connected to the power supply end of the first controller; the output end of the first power supply is connected to the first end of the first controller through the second normally closed contact of the first relay; the output end of the first power supply is connected to the second end of the first controller through the second normally open contact of the second relay; the output end of the first power supply is connected to the third end of the first controller through the third normally open contact of the second relay; the output end of the first power supply is connected to the power supply end of the second controller through the power conversion module; the card reader is connected to the first end of the second controller, and the second end of the second controller is connected to the fourth end of the first controller and the B1 end of the second relay;

[0005] The second power supply is connected to the power supply end of the first controller through the normally open contact of the first relay, and the fifth end and the sixth end of the first controller are connected to the door permission signal train line and the zero speed signal train line respectively.

[0006] Furthermore, the second relay is a time delay relay.

[0007] Furthermore, the first power source is a battery power source.

[0008] Furthermore, the card reader is connected to the first end of the second controller via a CAN network cable.

[0009] Furthermore, the first relay also includes a third normally closed contact and a fourth normally closed contact, the output end of the first power supply is connected to the second normally open contact of the second relay through the third normally closed contact of the first relay, and the output end of the first power supply is connected to the third normally open contact of the second relay through the fourth normally closed contact of the first relay.

[0010] Furthermore, the first relay is replaced by two relays including only a single normally closed contact and one relay including only a single normally open contact; the second relay is replaced by three relays including only a single normally open contact.

[0011] Based on the same concept, the present invention provides a driver's cab door control method, which is applied to the driver's cab door control device as described above, and the control method comprises:

[0012] In the unactivated state, the first relay loses power, the first normally closed contact and the second normally closed contact of the first relay remain closed, and the normally open contact of the first relay remains open; when the card reader reads a card swiping signal, the second controller outputs a level signal to the fourth end of the first controller and the B1 end of the second relay according to the card swiping signal input by the card reader, the second relay is energized, the first normally open contact, the second normally open contact and the third normally open contact of the second relay are closed, the first power supply supplies power to the first controller, and the first controller controls the switch of the driver's cab door according to the level signals of the second end, the third end and the fourth end of the first controller;

[0013] In the activated state, the first relay is energized, the first normally closed contact and the second normally closed contact of the first relay are disconnected, the normally open contact of the first relay is closed, the second relay is de-energized, the first normally open contact, the second normally open contact and the third normally open contact of the second relay are disconnected, and the first controller is powered by the second power supply; when the first controller receives the door permission signal and the zero speed signal, and the card reader reads the card swiping signal, the first controller controls the driver's cab door switch according to the door permission signal, the zero speed signal and the level signal output by the second controller.

[0014] Furthermore, whether the first controller is in an activated state is determined based on whether there is a level signal at the first end.

[0015] Further, in the unactivated state, the third normally closed contact and the fourth normally closed contact of the first relay remain closed, and the second normally open contact and the third normally open contact of the second relay are closed, so that the second end and the third end of the first controller have a level signal;

[0016] In the activated state, the third normally closed contact and the fourth normally closed contact of the first relay are disconnected, and the second normally open contact and the third normally open contact of the second relay are disconnected, so that the second end and the third end of the first controller have no level signal.

[0017] Based on the same concept, the present invention provides a vehicle, wherein the vehicle adopts the driver's cab door control device as described above.

[0018] Beneficial Effects

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] The driver's cab door control device of the present invention uses a card key close to a card reader, and uses a card swipe signal read by the card reader as a door switch signal to control the driver's cab door switch. The card key has no contact with the second controller, the first controller and the door drive circuit, so there is no instantaneous contact current, which solves the problem that the contact of the traditional electric key device is damaged by ablation due to a large instantaneous contact current, and improves the reliability of the driver's cab door control.

[0021] In the unactivated state, the first controller is in a non-powered state. When the card key is close to the card reader and the card reader reads the card swiping signal, the second relay is activated, and then the first power supply supplies power to the first controller, which saves energy and protects the environment while improving safety, avoiding electric shock accidents during routine maintenance by maintenance personnel;

[0022] The second controller is always in power supply state and can record the serial number of the card key and the operation time of each operation, so as to facilitate the grasp of the personnel information and time information of each operation, facilitate vehicle operation management, and meet the needs of vehicle intelligence and modernization development. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a schematic diagram of a driver's cab door control device in an unactivated state in an embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the driver's cab door control device in the activated state in an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The technical solution of the present application is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0028] Example 1

[0029] like Figure 1 and Figure 2 As shown, a driver's cab door control device provided by an embodiment of the present invention includes a first controller, a second controller, a first relay, a second relay, a card reader, a first power supply, a second power supply and a power conversion module; the output end of the first power supply is connected to the A1 end of the second relay and the first normally open contact 1 / 2 of the second relay through the first normally closed contact 1 / 2 of the first relay, and the first normally open contact 1 / 2 of the second relay is connected to the power supply end of the first controller; the output end of the first power supply is connected to the first end of the first controller through the second normally closed contact 3 / 4 of the first relay; the output end of the first power supply is connected to the second end of the first controller through the second normally open contact 3 / 4 of the second relay; the output end of the first power supply is connected to the third end of the first controller through the third normally open contact 5 / 6 of the second relay; the output end of the first power supply is connected to the power supply end of the second controller through the power conversion module; the card reader is connected to the first end of the second controller, the second end of the second controller is connected to the fourth end of the first controller and the B1 end of the second relay, and the A2 end of the second relay is grounded. The second power supply is connected to the power supply end of the first controller through the normally open contacts 9 / 10 of the first relay, and the fifth and sixth ends of the first controller are connected to the door permission signal train line and the zero speed signal train line respectively.

[0030] The first controller is a door controller, the second controller is an electric key controller, the first end of the first controller is an activation monitoring end, the second end of the first controller is a false door permission signal end, the third end of the first controller is a false zero speed signal end, the fourth end of the first controller is an open / close door signal end, the fifth end of the first controller is a door permission signal end, the sixth end of the first controller is a zero speed signal end, the first end of the second controller is an input end of a card swipe signal, and the second end of the second controller is an output end of a card swipe signal. The first relay is a vehicle activation relay, which acts after the vehicle is activated;

[0031] In the inactive state, the first controller and the second controller act as permanent loads and are powered by the first power supply. Figure 1As shown, since the first relay loses power in the unactivated state, the first normally closed contacts 1 / 2 and the second normally closed contacts 3 / 4 of the first relay remain closed, the normally open contacts 9 / 10 of the first relay remain disconnected, and the second power supply does not supply power to the first controller; since the second relay also loses power in the unactivated state, the first normally open contacts 1 / 2, the second normally open contacts 3 / 4 and the third normally open contacts 5 / 6 of the second relay remain disconnected, the first controller is not powered on, and there is no level signal input at the second and third ends of the first controller, thereby saving electric energy and improving safety. When an authorized card key is placed close to the card reader and the card reader reads the card swiping signal, the card reader transmits the card swiping signal to the second controller, and the second controller transmits the card swiping signal to the fourth end of the first controller and the B1 end of the second relay. The A1 end and the B1 end of the second relay are energized at the same time, the second relay is energized, the first normally open contacts 1 / 2, the second normally open contacts 3 / 4 and the third normally open contacts 5 / 6 of the second relay are closed, and the first power supply supplies power to the first controller. The second and third ends of the first controller have level signal inputs, that is, the first controller receives a false door permission signal, a false zero speed signal and a card swiping signal (that is, a door switch signal), and the first controller controls the driver's cab door switch according to the false door permission signal, the false zero speed signal and the card swiping signal.

[0032] Since the door permission signal train line and the zero speed signal train line are invalid in the unactivated state, in order to meet the safety requirements of the driver's cab door switch, a false door permission signal and a false zero speed signal are provided through the second relay.

[0033] In the activated state, the first controller is used as a normal load and is powered by the second power supply. The second controller is used as a permanent load and is powered by the first power supply. The second controller is always powered. Figure 2 As shown, in the activated state, the first relay is energized, the first normally closed contact 1 / 2 and the second normally closed contact 3 / 4 of the first relay are disconnected, causing the A1 end of the second relay to be de-energized, and then causing the second relay to lose power, the normally open contact 9 / 10 of the first relay is closed, and the first controller is powered by the second power supply. Due to the loss of power of the second relay, the first normally open contact 1 / 2, the second normally open contact 3 / 4 and the third normally open contact 5 / 6 of the second relay are disconnected, and there is no level signal input to the second end and the third end of the first controller, that is, the false door permission signal and the false zero speed signal of the first controller are shielded. When the first controller receives the door permission signal and the zero speed signal sent by the vehicle, the authorized card key is close to the card reader, the card reader reads the card swiping signal, the card reader transmits the card swiping signal to the second controller, and the second controller transmits the card swiping signal (i.e., the door switch signal) to the fourth end of the first controller, and the first controller controls the driver's cab door switch according to the door permission signal, the zero speed signal and the card swiping signal.

[0034] The first controller determines whether the vehicle is in an activated state based on whether there is a level signal input at its first end. When there is a level signal input at the first end of the first controller, the vehicle is in an inactivated state; when there is no level signal input at the first end of the first controller, the vehicle is in an activated state. The first controller can also shield the false door permission signal and the false zero speed signal through a program based on whether the vehicle is in an activated state. When the vehicle is in an inactivated state, the first controller does not shield the false door permission signal and the false zero speed signal; when the vehicle is in an activated state, the first controller shields the false door permission signal and the false zero speed signal.

[0035] The second relay can prevent the first controller from being always powered on, which may cause safety hazards and waste energy. In a specific embodiment of the present invention, the second relay is a time delay relay, which delays the action of each normally open contact to protect the device from damage caused by sudden current shock.

[0036] In a specific embodiment of the present invention, the first power supply is a battery power supply, so that the second controller is always in a power supply state and supplies power to the first controller in an unactivated state, ensuring normal power supply of the door control device of the present invention in the unactivated state and the activated state.

[0037] In a specific implementation of the present invention, the card reader is connected to the first end of the second controller via a CAN network cable.

[0038] In a specific embodiment of the present invention, the first relay further includes a third normally closed contact 5 / 6 and a fourth normally closed contact 7 / 8, the output end of the first power supply is connected to the second normally open contact 3 / 4 of the second relay through the third normally closed contact 5 / 6 of the first relay, and the output end of the first power supply is connected to the third normally open contact 5 / 6 of the second relay through the fourth normally closed contact 7 / 8 of the first relay. Whether the second and third ends of the first controller have level signal inputs is jointly determined by the third normally closed contact 5 / 6 and the fourth normally closed contact 7 / 8 of the first relay and the second normally open contact 3 / 4 and the third normally open contact 5 / 6 of the second relay, whether in an unactivated state or an activated state, thereby improving the safety of door control and preventing accidental door opening and closing actions.

[0039] In another embodiment of the present invention, the first normally closed contact 1 / 2, the second normally closed contact 3 / 4, the third normally closed contact 5 / 6, the fourth normally closed contact 7 / 8 and the normally open contact 9 / 10 of the first relay are replaced by 4 relays with single normally closed contacts and 1 relay with single normally open contact, that is, the first normally closed contact 1 / 2 of the first relay is replaced by a relay K11 including only one normally closed contact, the second normally closed contact 3 / 4 of the first relay is replaced by a relay K12 including only one normally closed contact, the third normally closed contact 5 / 6 of the first relay is replaced by a relay K13 including only one normally closed contact, the fourth normally closed contact 7 / 8 of the first relay is replaced by a relay K14 including only one normally closed contact, and the normally open contacts 9 / 10 of the first relay are replaced by a relay K15 including only one normally open contact. The first normally open contact 1 / 2, the second normally open contact 3 / 4 and the third normally open contact 5 / 6 of the second relay are replaced by three relays with single normally open contacts, that is, the first normally open contact 1 / 2 of the second relay is replaced by a relay K21 including only one normally open contact, the second normally open contact 3 / 4 of the second relay is replaced by a relay K22 including only one normally open contact, and the third normally open contact 5 / 6 of the second relay is replaced by a relay K23 including only one normally open contact.

[0040] Example 2

[0041] A driver's cab door control method provided by an embodiment of the present invention is applied to the driver's cab door control device as described in Example 1, and the control method includes door control in an inactive state and door control in an active state.

[0042] like Figure 1 As shown, in the unactivated state, the first relay loses power, the first normally closed contacts 1 / 2 and the second normally closed contacts 3 / 4 of the first relay remain closed, and the normally open contacts 9 / 10 of the first relay remain open; when the card reader reads the card swiping signal, the second controller outputs a level signal to the fourth end of the first controller and the B1 end of the second relay according to the card swiping signal input by the card reader. Since the A1 end and the B1 end of the second relay are energized, the second relay is energized, the first normally open contacts 1 / 2, the second normally open contacts 3 / 4 and the third normally open contacts 5 / 6 of the second relay are closed, and the first power supply supplies power to the first controller. The first controller controls the driver's cab door switch according to the level signals of the second end (i.e., the false door permission signal), the third end (i.e., the false zero speed signal) and the fourth end (i.e., the door switch signal) of the first controller.

[0043] like Figure 2As shown, in the activated state, the first relay is energized, the first normally closed contact 1 / 2 and the second normally closed contact 3 / 4 of the first relay are disconnected, the normally open contacts 9 / 10 of the first relay are closed, the second relay is de-energized, the first normally open contacts 1 / 2, the second normally open contacts 3 / 4 and the third normally open contacts 5 / 6 of the second relay are disconnected, and the first controller is powered by the second power supply; when the first controller receives the door permission signal and the zero speed signal, and the card reader reads the card swiping signal, the first controller controls the driver's cab door switch according to the door permission signal, the zero speed signal and the level signal output by the second controller.

[0044] In a specific embodiment of the present invention, the first controller determines whether the vehicle is in an activated state based on whether there is a level signal input at its first end. When there is a level signal input at the first end of the first controller, the vehicle is in an inactivated state; when there is no level signal input at the first end of the first controller, the vehicle is in an activated state. The first controller can also shield the false door permission signal and the false zero speed signal through a program based on whether the vehicle is in an activated state. When the vehicle is in an inactivated state, the first controller does not shield the false door permission signal and the false zero speed signal; when the vehicle is in an activated state, the first controller shields the false door permission signal and the false zero speed signal.

[0045] In a specific embodiment of the present invention, in an unactivated state, the third normally closed contact 5 / 6 and the fourth normally closed contact 7 / 8 of the first relay remain closed, and the second normally open contact 3 / 4 and the third normally open contact 5 / 6 of the second relay are closed, so that the second end and the third end of the first controller have level signals, that is, there are false door permission signals and false zero-speed signals; in an activated state, the third normally closed contact 5 / 6 and the fourth normally closed contact 7 / 8 of the first relay are disconnected, and the second normally open contact 3 / 4 and the third normally open contact 5 / 6 of the second relay are disconnected, so that the second end and the third end of the first controller do not have level signals, that is, there are no false door permission signals and false zero-speed signals.

[0046] Whether in the unactivated state or the activated state, whether there is a level signal input at the second and third ends of the first controller is jointly determined by the third normally closed contact 5 / 6 and the fourth normally closed contact 7 / 8 of the first relay and the second normally open contact 3 / 4 and the third normally open contact 5 / 6 of the second relay, thereby improving the safety of door control and preventing accidental door opening and closing.

[0047] What is disclosed above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or modifications within the technical scope disclosed in the present invention, which should be covered within the protection scope of the present invention.

Claims

1. A driver's cab door control device, characterized in that: The control device includes a first controller, a second controller, a first relay, a second relay, a card reader, a first power supply, a second power supply and a power conversion module; the output end of the first power supply is connected to the A1 end of the second relay and the first normally open contact of the second relay through the first normally closed contact of the first relay, and the first normally open contact of the second relay is connected to the power supply end of the first controller; the output end of the first power supply is connected to the first end of the first controller through the second normally closed contact of the first relay; the output end of the first power supply is connected to the second end of the first controller through the second normally open contact of the second relay; the output end of the first power supply is connected to the third end of the first controller through the third normally open contact of the second relay; the output end of the first power supply is connected to the power supply end of the second controller through the power conversion module; the card reader is connected to the first end of the second controller, and the second end of the second controller is connected to the fourth end of the first controller and the B1 end of the second relay; The second power supply is connected to the power supply end of the first controller through the normally open contact of the first relay, and the fifth end and the sixth end of the first controller are connected to the door permission signal train line and the zero speed signal train line respectively.

2. The driver's cab door control device according to claim 1, characterized in that: The second relay is a time delay relay.

3. The driver's cab door control device according to claim 1, characterized in that: The first power source is a battery power source.

4. The driver's cab door control device according to claim 1, characterized in that: The card reader is connected to the first end of the second controller via a CAN network cable.

5. The driver's cab door control device according to claim 1, characterized in that: The first relay also includes a third normally closed contact and a fourth normally closed contact. The output end of the first power supply is connected to the second normally open contact of the second relay through the third normally closed contact of the first relay, and the output end of the first power supply is connected to the third normally open contact of the second relay through the fourth normally closed contact of the first relay.

6. The driver's cab door control device according to any one of claims 1 to 5, characterized in that: The first relay is replaced by two relays including only a single normally closed contact and one relay including only a single normally open contact; the second relay is replaced by three relays including only a single normally open contact.

7. A driver's cab door control method, applied to the driver's cab door control device according to any one of claims 1 to 6, characterized in that: The control method comprises: In the unactivated state, the first relay loses power, the first normally closed contact and the second normally closed contact of the first relay remain closed, and the normally open contact of the first relay remains open; when the card reader reads a card swiping signal, the second controller outputs a level signal to the fourth end of the first controller and the B1 end of the second relay according to the card swiping signal input by the card reader, the second relay is energized, the first normally open contact, the second normally open contact and the third normally open contact of the second relay are closed, the first power supply supplies power to the first controller, and the first controller controls the switch of the driver's cab door according to the level signals of the second end, the third end and the fourth end of the first controller; In the activated state, the first relay is energized, the first normally closed contact and the second normally closed contact of the first relay are disconnected, the normally open contact of the first relay is closed, the second relay is de-energized, the first normally open contact, the second normally open contact and the third normally open contact of the second relay are disconnected, and the first controller is powered by the second power supply; when the first controller receives the door permission signal and the zero speed signal, and the card reader reads the card swiping signal, the first controller controls the driver's cab door switch according to the door permission signal, the zero speed signal and the level signal output by the second controller.

8. The driver's cab door control method according to claim 7, characterized in that: Whether the first controller is in an activated state is determined according to whether there is a level signal at the first end.

9. The driver's cab door control method according to claim 7 or 8, characterized in that: In the unactivated state, the third normally closed contact and the fourth normally closed contact of the first relay remain closed, and the second normally open contact and the third normally open contact of the second relay are closed, so that the second end and the third end of the first controller have a level signal; In the activated state, the third normally closed contact and the fourth normally closed contact of the first relay are disconnected, and the second normally open contact and the third normally open contact of the second relay are disconnected, so that the second end and the third end of the first controller have no level signal.

10. A vehicle, characterized in that: The vehicle adopts the driver's cab door control device according to any one of claims 1 to 6.

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