A control system and a control method for a new energy bus

Abstract

The present invention provides a control system and a control method for a new energy bus. The new energy bus includes a passenger door. The control system includes: a controller, a door control switch, an opening solenoid valve, a closing solenoid valve, a vehicle speed signal detection device, and a position detection device. The controller is used to control the opening and closing of the passenger door according to the vehicle speed value and the switch state information of the passenger door. By using the control system and the control method for the new energy bus in this application to control the passenger door, it can be ensured that the vehicle can only run normally after the passenger door is closed, and the passenger door can only be opened when the bus has come to a complete stop. The control strategy ensures that the passenger door can only be opened and closed in a safe state, thereby ensuring the safety of passengers on the bus and the safety of vehicle driving.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and particularly to a control system and a control method for a new energy passenger bus. Background Art

[0002] When the passenger door of an existing new energy passenger bus is opened and closed, it is only controlled by a door flap switch. During the driving process of the new energy passenger bus, if the driver makes a misoperation or there is signal interference during driving, it is very likely that the passenger door of the new energy passenger bus will suddenly open during driving, posing a risk of passengers falling; or, the vehicle starts driving before the passengers have fully boarded, resulting in passenger injuries. Summary of the Invention

[0003] In view of this, one of the purposes of the present invention is to provide a control system and a control method for a new energy passenger bus to solve the problem in the prior art that only the door flap switch is used to control the passenger door, which is prone to misoperation and signal interference, causing passengers to fall and get injured, or the vehicle starts driving before the passengers have fully boarded.

[0004] To achieve the above object, on the one hand, the present invention adopts the following technical solutions:

[0005] A control system for a new energy passenger bus, the new energy passenger bus includes a passenger door, and the control system includes:

[0006] A controller for controlling the opening and closing of the passenger door;

[0007] A door control switch connected to the controller for sending an opening signal or a closing signal when triggered;

[0008] An opening solenoid valve connected to the passenger door for operating when receiving the opening signal to control the opening of the passenger door;

[0009] A closing solenoid valve connected to the passenger door for operating when receiving the closing signal to control the closing of the passenger door;

[0010] A vehicle speed signal detection device connected to the controller for detecting the vehicle speed of the new energy passenger bus and transmitting the detected vehicle speed value of the new energy passenger bus to the controller;

[0011] A position detection device, the position detection device is connected to the controller for detecting the opening and closing state of the passenger door and transmitting the opening and closing state information of the passenger door to the controller;

[0012] The controller is used to control the opening and closing of the passenger door according to the vehicle speed value and the opening and closing state information of the passenger door.

[0013] Preferably, the control system further includes:

[0014] An opening relay, which is respectively connected to the controller and the opening electromagnetic valve, and is used for transmitting the opening signal to the opening electromagnetic valve when receiving the opening signal;

[0015] A closing relay, which is respectively connected to the controller and the closing electromagnetic valve, and is used for transmitting the closing signal to the closing electromagnetic valve when receiving the closing signal.

[0016] Preferably, the control system further includes:

[0017] A main control unit, which is connected to the controller and is used for displaying the opening and closing state information of the passenger door.

[0018] Preferably, the control system further includes:

[0019] A forced driving switch, which is connected to the main control unit and is used for transmitting forced driving information to the main control unit when being triggered, so as to control the new energy bus to run when the passenger door cannot be closed.

[0020] To achieve the above object, on the other hand, the present invention adopts the following technical solutions:

[0021] A control method for a new energy bus, which is used for controlling the control system of the above-mentioned new energy bus,

[0022] Obtain the vehicle speed value of the new energy bus and the opening and closing state information of the passenger door;

[0023] Control the operation of the new energy bus according to the vehicle speed value, the state of the door control switch and the opening and closing state information of the passenger door.

[0024] Preferably, the method for controlling the operation of the new energy bus according to the vehicle speed value, the state of the door control switch and the opening and closing state information of the passenger door includes:

[0025] When the passenger door is in the closed state and the vehicle speed value is not 0, the controller ignores the information that the door control switch is triggered.

[0026] Preferably, the method for controlling the operation of the new energy bus according to the vehicle speed value, the state of the door control switch and the opening and closing state information of the passenger door includes:

[0027] When the passenger door is in the open state and the vehicle speed value is 0, and the door control switch is not triggered, the new energy bus is prohibited from running.

[0028] Preferably, the control system includes a forced driving switch for transmitting forced driving information to the main control unit of the new energy bus when triggered;

[0029] When the new energy bus is prohibited from driving, if the forced driving switch is triggered, the new energy bus can drive with the passenger door in an open state.

[0030] Preferably, according to the vehicle speed value, the state of the door control switch, and the switch state information of the passenger door, the method for controlling the operation of the new energy bus further includes:

[0031] When the passenger door is in a closed state and the vehicle speed value is 0, when the door control switch is triggered, the controller outputs an opening signal to the opening solenoid valve;

[0032] When the passenger door is in an open state and the vehicle speed value is 0, when the door control switch is triggered, the controller outputs a closing signal to the closing solenoid valve.

[0033] Preferably, the control system of the new energy bus further includes an opening relay respectively connected to the controller and the opening solenoid valve, and a closing relay respectively connected to the controller and the closing solenoid valve;

[0034] The control method further includes:

[0035] When the passenger door is in a closed state and the vehicle speed value is 0, when the door control switch is triggered, the controller outputs an opening signal to the opening solenoid valve through the opening relay;

[0036] When the passenger door is in an open state and the vehicle speed value is 0, when the door control switch is triggered, the controller outputs a closing signal to the closing solenoid valve through the closing relay.

[0037] Using the control system and control method of the new energy bus in this application to control the passenger door can ensure that the vehicle can only drive normally after the passenger door is closed, and the passenger door can only be opened when the bus has come to a complete stop. The control strategy ensures that the passenger door can only be opened and closed in a safe state, thereby ensuring the safety of passengers and the safety of vehicle driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Through the following description of the embodiments of the present invention with reference to the drawings, the above and other objects, features, and advantages of the present invention will become clearer. In the drawings:

[0039] Figure 1 Shows a schematic structural connection diagram of the control system of the new energy bus provided by the specific embodiment of the present invention;

[0040] Figure 2 Shows the flowchart of the control method for a new energy bus provided by the specific embodiment of the present invention.

[0041] In the figure:

[0042] 1. Controller; 2. Door control switch; 3. Door opening solenoid valve; 4. Door closing solenoid valve; 5. Vehicle speed signal detection device; 6. Position detection device; 7. Door opening relay; 8. Door closing relay; 9. Main control unit. Specific embodiment

[0043] The following describes the present invention based on embodiments. Those of ordinary skill in the art should understand that the attached drawings provided here are all for illustrative purposes and are not necessarily drawn to scale.

[0044] Unless the context clearly requires otherwise, the words such as "including", "comprising" and the like in the whole specification and claims should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".

[0045] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0046] The upper, lower and other orientations in this application are described based on the position of the device proposed in this application in the normal use state.

[0047] As Figure 1 shown, this application provides a control system for a new energy bus. The new energy bus includes a passenger door (not shown in the figure). The control system includes:

[0048] A controller 1 for controlling the opening and closing of the passenger door;

[0049] A door control switch 2 connected to the controller 1 for sending an opening signal or a closing signal when triggered;

[0050] A door opening solenoid valve 3 connected to the passenger door for operating when receiving an opening signal to control the opening of the passenger door;

[0051] A door closing solenoid valve 4 connected to the passenger door for operating when receiving a closing signal to control the closing of the passenger door;

[0052] A vehicle speed signal detection device 5 connected to the controller 1 for detecting the vehicle speed of the new energy bus and transmitting the detected vehicle speed value of the new energy bus to the controller 1;

[0053] A position detection device 6 is connected to the controller 1 and is used to detect the opening and closing state of the passenger door and transmit the opening and closing state information of the passenger door to the controller 1. Preferably, the position detection device 6 includes a position sensor.

[0054] The controller 1 is used to control the opening and closing of the passenger door according to the vehicle speed value and the opening and closing state information of the passenger door, and ensure that the passenger door can be opened and closed only in a safe state from the control strategy. Among them, the controller 1 and the vehicle speed signal detection device 5 are communicatively connected through the CAN bus of the new energy bus, the controller 1 and the position detection device 6 are communicatively connected through a connection signal line, and the controller 1 and the door control switch 2 are communicatively connected through a connection signal line.

[0055] Furthermore, the control system further includes:

[0056] An opening relay 7, which is respectively connected to the controller 1 and the opening solenoid valve 3, and is used to transmit the opening signal to the opening solenoid valve 3 when receiving the opening signal;

[0057] A closing relay 8, which is respectively connected to the controller 1 and the closing solenoid valve 4, and is used to transmit the closing signal to the closing solenoid valve 4 when receiving the closing signal.

[0058] The opening relay 7 and the closing relay 8 mainly play a protective role in the control system. Only when the signals sent by the controller 1 accumulate to a certain extent, can the opening relay 7 and the closing relay 8 transmit the opening signal and the closing signal to the opening solenoid valve 3 and the closing solenoid valve 4, so as to avoid misoperation of the opening solenoid valve 3 and the closing solenoid valve 4 and improve the control accuracy and stability of the control system. In the specific control process, the controller 1 can output a voltage of 24V to the opening relay 7 and the closing relay 8. When the output voltage lasts for a period of time, the opening relay 7 and the closing relay 8 can transmit the 24V voltage to the opening solenoid valve 3 and the closing solenoid valve 4, so that the opening solenoid valve 3 and the closing solenoid valve 4 act to control the opening or closing of the passenger door.

[0059] Even further, the control system further includes a main control unit 9. The main control unit 9 is connected to the controller 1 and is used to display the opening and closing state information of the passenger door. The main control unit 9 includes an instrument, and the instrument has both a display function and a certain control function. The control function of the instrument is carried out under a low-voltage state. The main control unit 9 and the controller 1 are communicatively connected through the CAN bus of the new energy bus.

[0060] Further, the control system further includes a forced driving switch (not shown in the figure), which is connected to the main control unit 9 and is used to transmit forced driving information to the main control unit 9 when triggered, so as to control the new energy bus to drive when the passenger door cannot be closed. To ensure the accuracy and reliability of the control process of the control system, the forced driving switch must be triggered only when it is long pressed to avoid misoperation.

[0061] As Figure 2 shown, the present application also provides a control method for a new energy bus, which is used to control the control system of the new energy bus described above. The control method includes:

[0062] Obtain the vehicle speed value of the new energy bus and the switch state information of the passenger door;

[0063] Control the operation of the new energy bus according to the vehicle speed value, the state of the door control switch, and the switch state information of the passenger door.

[0064] Further, in a specific embodiment, the method for controlling the operation of the new energy bus according to the vehicle speed value, the state of the door control switch, and the switch state information of the passenger door includes:

[0065] When the passenger door is in the closed state and the vehicle speed value is not 0, the controller ignores the information that the door control switch is triggered;

[0066] When the passenger door is in the open state and the vehicle speed value is 0, and the door control switch is not triggered, the new energy bus is prohibited from driving;

[0067] When the passenger door is in the closed state and the vehicle speed value is 0, and the door control switch is triggered, the controller outputs an opening signal to the opening solenoid valve;

[0068] When the passenger door is in the open state and the vehicle speed value is 0, and the door control switch is triggered, the controller outputs a closing signal to the closing solenoid valve.

[0069] Preferably, the control system includes a forced driving switch, which is used to transmit forced driving information to the main control unit of the new energy bus when triggered. The control method in the present application further includes:

[0070] When the new energy bus is prohibited from driving, if the forced driving switch is triggered, the new energy bus can drive with the passenger door in the open state.

[0071] Furthermore, the control system of the new energy bus further includes an opening relay respectively connected to the controller and the opening solenoid valve, and a closing relay respectively connected to the controller and the closing solenoid valve. The control method further includes:

[0072] When the door control switch is triggered while the passenger door is in the closed state and the vehicle speed value is 0, the controller outputs an opening signal to the opening solenoid valve through the opening relay.

[0073] When the door control switch is triggered while the passenger door is in the open state and the vehicle speed value is 0, the controller outputs a closing signal to the closing solenoid valve through the closing relay.

[0074] By using the control method in this application to control the control system of the new energy bus in this application, the bus can only drive normally when the passenger door of the bus is fully closed, and the passenger door can only be opened when the bus is completely stationary, so as to ensure the safety of opening and closing the passenger door.

[0075] There are a large number of high-power electrical equipment on the new energy bus. These equipment generate a large amount of clutter, which is likely to interfere with the operation of the opening solenoid valve and the closing solenoid valve, and is prone to misoperation. By setting the opening relay and the closing relay and cooperating with the position detection device to control the passenger door, the problem of misoperation can be effectively solved, and the stability and safety of the passenger door control process can be improved.

[0076] It is easy for those skilled in the art to understand that, on the premise of no conflict, the above preferred solutions can be freely combined and superimposed.

[0077] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A control system for a new energy bus, the new energy bus including a passenger door, characterized in that, the control system includes: a controller for controlling the opening and closing of the passenger door; a door control switch connected to the controller for sending an opening signal or a closing signal when triggered; an opening solenoid valve connected to the passenger door for operating when receiving the opening signal to control the opening of the passenger door; a closing solenoid valve connected to the passenger door for operating when receiving the closing signal to control the closing of the passenger door; a vehicle speed signal detection device connected to the controller for detecting the vehicle speed of the new energy bus and transmitting the detected vehicle speed value of the new energy bus to the controller; a position detection device connected to the controller for detecting the opening and closing state of the passenger door and transmitting the opening and closing state information of the passenger door to the controller; the controller is used to control the opening and closing of the passenger door according to the vehicle speed value and the opening and closing state information of the passenger door, wherein, the controller is communicatively connected to the vehicle speed signal detection device through the CAN bus of the new energy bus, the controller is communicatively connected to the position detection device through a connection signal line, and the controller is communicatively connected to the door control switch through a connection signal line; the control system further includes: a main control unit connected to the controller for displaying the opening and closing state information of the passenger door; a forced driving switch connected to the main control unit for transmitting forced driving information to the main control unit when triggered to control the driving of the new energy bus when the passenger door cannot be closed.

2. The control system for a new energy bus according to claim 1, characterized in that, the control system further includes: an opening relay respectively connected to the controller and the opening solenoid valve for transmitting the opening signal to the opening solenoid valve when receiving the opening signal; a closing relay respectively connected to the controller and the closing solenoid valve for transmitting the closing signal to the closing solenoid valve when receiving the closing signal.

3. A control method for a new energy bus for controlling the control system for a new energy bus according to claim 1, characterized in that: acquire the vehicle speed value of the new energy bus and the opening and closing state information of the passenger door; control the operation of the new energy bus according to the vehicle speed value, the state of the door control switch and the opening and closing state information of the passenger door.

4. The control method for a new energy bus according to claim 3, characterized in that, the method for controlling the operation of the new energy bus according to the vehicle speed value, the state of the door control switch and the opening and closing state information of the passenger door includes: when the passenger door is in a closed state and the vehicle speed value is not 0, the controller ignores the information that the door control switch is triggered.

5. The control method for a new energy bus according to claim 4, characterized in that, A method for controlling the operation of the new energy bus according to the vehicle speed value, the state of the door control switch, and the switch state information of the passenger door includes: When the passenger door is in the open state and the vehicle speed value is 0, and the door control switch is not triggered, the new energy bus is prohibited from driving.

6. The control method of the new energy bus according to claim 5, characterized in that, The control system includes a forced driving switch for transmitting forced driving information to the main control unit of the new energy bus when triggered; When the new energy bus is prohibited from driving, if the forced driving switch is triggered, the new energy bus can drive with the passenger door in the open state.

7. The control method of the new energy bus according to claim 3, characterized in that, A method for controlling the operation of the new energy bus according to the vehicle speed value, the state of the door control switch, and the switch state information of the passenger door further includes: When the passenger door is in the closed state and the vehicle speed value is 0, and the door control switch is triggered, the controller outputs an opening signal to the opening solenoid valve; When the passenger door is in the open state and the vehicle speed value is 0, and the door control switch is triggered, the controller outputs a closing signal to the closing solenoid valve.

8. The control method of the new energy bus according to claim 7, characterized in that, The control system of the new energy bus further includes an opening relay respectively connected to the controller and the opening solenoid valve, and a closing relay respectively connected to the controller and the closing solenoid valve; The control method further includes: When the passenger door is in the closed state and the vehicle speed value is 0, and the door control switch is triggered, the controller outputs an opening signal to the opening solenoid valve through the opening relay; When the passenger door is in the open state and the vehicle speed value is 0, and the door control switch is triggered, the controller outputs a closing signal to the closing solenoid valve through the closing relay.

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