A platform vehicle electrical control system and control method thereof

Abstract

The present invention relates to an electrical control system for a platform vehicle and a control method thereof, belonging to the technical field of electrical control of platform vehicles; the technical problem to be solved is: to provide an improvement in the hardware structure of the electrical control system of a platform vehicle; the technical scheme adopted to solve the above technical problem is: comprising a control part, a data acquisition part, and an output device part, the control part realizes centralized control of the movement of the outrigger system, the movement of the trolley system, the movement of the boom system, the movement of the platform plate, and the speed of the chassis engine through the working parameters of the electric control system and the hydraulic system arranged on the platform vehicle collected by the data acquisition part; the output device realizes fault alarm, display, and prompting of the system through the monitoring and measurement of the working status of the electric control system and the hydraulic system by the control part; the present invention is applied to the control of platform vehicles.

Description

Technical Field

[0001] The invention discloses an electrical control system for a platform vehicle and a control method thereof, belonging to the technical field of electrical control systems for platform vehicles. Background Art

[0002] The heavy-duty railway mechanized platform is mainly used to meet the needs of our army's main combat units for cross-regional support and long-distance support for railway transportation and rapid loading and unloading. It is a military product and is not currently used in the civilian market. It consists of a platform car, a transport car, a platform board and a platform. With the rapid development of our army's weapons and equipment and the country's electrified railways, it is urgent to develop a new type of heavy-duty railway mechanized platform with higher performance indicators, greater reliability, environmental adaptability, and higher degree of automation.

[0003] As an important part of the heavy railway mechanized platform, the platform car participates in the entire process of setting up and removing the platform. In order to quickly, efficiently and safely complete the platform setting up and removing, higher requirements are put forward for the electrical control system of the platform car. The existing platform car electrical control system has the disadvantages of single control, inability to centrally control, lack of fault diagnosis function, control redundancy, and lack of quick plug-in replacement. Therefore, it is necessary to propose a platform car electrical control system that can meet the rapid development of our military weapons and equipment and national electrified railways. Summary of the invention

[0004] In order to overcome the deficiencies in the prior art, the present invention aims to solve the technical problem of providing an improvement in the hardware structure of an electrical control system for a platform vehicle.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an electrical control system for a platform vehicle, comprising a control part, a data acquisition part, and an output device part, wherein the control part realizes centralized control of the movement of the outrigger system, the movement of the trolley system, the movement of the boom system, the movement of the platform deck, and the speed of the chassis engine through the working parameters of the electric control system and the hydraulic system set on the platform vehicle collected by the data acquisition part;

[0006] The output device monitors and measures the working status of the electronic control system and the hydraulic system through the control part, and realizes the fault alarm, display and prompt of the system;

[0007] The control part includes an electric control box arranged in the cab of the platform car and a handheld operation box arranged outside the cab of the platform car. Data transmission between the electric control box and the handheld operation box is achieved through both wired and wireless methods, and the two communication methods can be switched freely. The wired data transmission between the electric control box and the handheld operation box is achieved through a wired control distribution box, and the wireless data transmission between the electric control box and the handheld operation box is achieved through the antenna on the top of the electric control box.

[0008] The electric control box is connected to the on-board junction box, the off-board junction box and the front junction box through wires respectively, and the electric control box is also provided with a debugging interface and a power supply interface;

[0009] The on-board junction box is connected to the first variable amplitude pressure transmitter BP6, the second variable amplitude pressure transmitter BP5, the angle sensor for collecting the variable amplitude angle, the positioning pin retraction switch SQ5, the safety valve, the on-board indicator light, and the rotary encoder for collecting the rotation angle through wires;

[0010] The disembarkation junction box is connected to the right outrigger deployment position switch SQ8, the left outrigger deployment position switch SQ7, the trolley push-out switch SQ1, the trolley pin extension switch SQ3, the right rear outrigger lifting pressure transmitter BP4, the left rear outrigger lifting pressure transmitter BP3, and the disembarkation indicator light through wires;

[0011] The front junction box is connected to the boom amplitude change level switch SQ6, the trolley retraction switch SQ2, the trolley return pin extension switch SQ4, the right front outrigger lifting pressure transmitter BP2, the left front outrigger lifting pressure transmitter BP1, the remote throttle, and the high-pressure oil filter switch SQ9 through wires.

[0012] The electric control box is provided with a controller of model HLT-80DIO, and the corresponding handheld operation box is provided with a remote controller of the same model HLT-80DIO. The controller receives the control signal sent by the remote controller and drives the proportional reversing valve to perform an action.

[0013] The handheld operation box is provided with a display part and an operation panel part, and the display part is provided with a display screen, a signal indicator light, a battery indicator light, and a five-position button;

[0014] The operation panel is provided with a power switch, a remote control / wire control switch, a backup power switch, a joystick multiplexing switch, multiple remote control handles, and a rotary potentiometer for a remote throttle;

[0015] A self-resetting button switch is arranged on one side of the handheld operation box, and an emergency stop switch is arranged on the other side of the handheld operation box.

[0016] The wired connection cable between the electric control box and the handheld operation box specifically adopts a CAN bus with optical coupling isolation;

[0017] The wireless communication between the electric control box and the handheld operation box adopts a wireless frequency band ranging from TC6410: 433.075 to 434.750 MHz, and the receiving sensitivity of the wireless signal is -115 dBm / 10 BER.

[0018] A platform vehicle electrical control method comprises the following steps:

[0019] Step 1: Start the electric control box and the handheld operation box, and multiple sensors connected to the controller send the collected analog signals to the controller for processing;

[0020] Step 2: Start the wired / wireless remote control module through the remote control / wired control switch on the handheld operation box. The control input of the heavy mechanized platform erection vehicle inputs the control signal from the remote control to the controller. The controller runs the control program to drive the proportional reversing valve to perform the corresponding action.

[0021] Step 3: Use the rocker multiplexing switch on the handheld operation box to start the function multiplexing of multiple remote control handles, so as to input control signals to the controller through the remote control to control the movement of the outrigger system, the trolley system, the boom system, and the platform plate;

[0022] Step 4: In the process of controlling the platform car, the controller performs logic protection on the related actions of the platform board erection and withdrawal process;

[0023] Step 5: The display screen on the handheld operation box displays the current status during the operation;

[0024] Step 6: The display screen on the handheld operation box outputs an alarm for fault information during operation, lights up the fault indicator light, and displays the corresponding fault code on the display screen.

[0025] The wired / wireless remote control module in step 2 includes the following switch signals, which are multiplexed by the rocker multiplexing switch, specifically:

[0026] The stepless speed regulation controlled by the rotary switch is used to control the speed of the vehicle engine;

[0027] The first remote control handle is used to realize the multiplexing of the functions of retracting and extending the left front outrigger and extending and retracting the boom;

[0028] The second remote control handle is used to realize the multiplexing of the functions of retracting and extending the right front outrigger and adjusting the boom up and down;

[0029] The third remote control handle can be used to realize the function reuse of the trolley moving forward and backward and the boom rotating clockwise and counterclockwise;

[0030] The fourth remote control handle is used to realize the multiplexing of the functions of retracting and unfolding the rear outriggers and retracting and extending the positioning pins;

[0031] The fifth remote control handle is used to realize the multiplexing of the functions of retracting and extending the right rear outrigger and retracting and extending the spreader;

[0032] The sixth remote control handle is used to realize the function reuse of retracting and extending the left rear outrigger and unfolding and retracting the platform end span;

[0033] The seventh remote control handle is used to control the extension and retraction of the platform side panels.

[0034] In step 4, the controller performs logical protection on the related actions of the platform board erection and withdrawal process, which specifically includes:

[0035] The movement of the trolley is controlled by the state of the positioning pin;

[0036] The extension and retraction of the rear outriggers is controlled by setting the rear outrigger pressure value range;

[0037] Other actions of the trolley are controlled by the pressure value signals of the front and rear outriggers and are started successively;

[0038] The movement of the outriggers is controlled by judging the position of the trolley.

[0039] The beneficial effects of the present invention compared with the prior art are as follows: the electrical control system of the platform vehicle provided by the present invention performs integrated and centralized control on the extension and retraction of the front and rear legs of the platform vehicle, the lateral movement of the trolley, the extension and retraction of the latch, the pitch, rotation and extension of the boom; the extension and retraction of the end span platform plate, the side plate, the extension and retraction of the hoist and the engine speed. It is operated by a set of control handles and controlled by a controller, which is more convenient and practical and facilitates centralized control. The electrical control system of the platform vehicle completes the system fault diagnosis function. The electrical control system of the platform vehicle is modularly controlled and quickly pluggable; it has high reliability and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described below in conjunction with the accompanying drawings:

[0041] Figure 1 It is a schematic diagram of the system structure of the present invention;

[0042] Figure 2 It is a structural schematic diagram of the on-board junction box of the present invention;

[0043] Figure 3 This is a structural schematic diagram of the off-board junction box of the present invention;

[0044] Figure 4 It is a structural schematic diagram of the vehicle head junction box of the present invention;

[0045] Figure 5 It is a structural schematic diagram of the handheld operation box of the present invention;

[0046] Figure 6 The schematic diagram of the circuit structure of the controller and remote controller of the present invention;

[0047] In the figure: 1 is an electric control box, 2 is a handheld operation box, 3 is a wire control junction box, 4 is a remote control box, 5 is a boarding junction box, 6 is a getting off junction box, 7 is a front junction box, 20 is a rotary potentiometer, 21 is a display screen, 22 is a signal indicator light, 23 is a battery indicator light, 24 is a five-position button, 25 is a power switch, 26 is a remote control / wire control switching switch, 27 is a backup power switch, 28 is a joystick multiplexing switch, 29 is a remote control handle, 201 is a self-reset button switch, and 202 is an emergency stop switch. DETAILED DESCRIPTION

[0048] like Figures 1 to 6 As shown, the electrical control system of a platform vehicle of the present invention comprises a control part, a data acquisition part, and an output device part. The control part realizes centralized control of the movement of the outrigger system, the movement of the trolley system, the movement of the boom system, the movement of the platform deck, and the speed of the chassis engine through the working parameters of the electric control system and the hydraulic system arranged on the platform vehicle acquired by the data acquisition part;

[0049] The output device monitors and measures the working status of the electronic control system and the hydraulic system through the control part, and realizes the fault alarm, display and prompt of the system;

[0050] The control part includes an electric control box 1 arranged in the cab of the platform car and a handheld operation box 2 arranged outside the cab of the platform car. Data transmission between the electric control box 1 and the handheld operation box 2 is achieved through both wired and wireless methods, and the two communication methods can be switched freely. The wired data transmission between the electric control box 1 and the handheld operation box 2 is achieved through a wired control junction box 3, and the wireless data transmission between the electric control box 1 and the handheld operation box 2 is achieved through the antenna at the top of the electric control box 1.

[0051] The electric control box 1 is connected to the on-board junction box 5, the off-board junction box 6, and the front junction box 7 through wires, and the electric control box 1 is also provided with a debugging interface and a power supply interface;

[0052] The on-board junction box 5 is connected to the first variable amplitude pressure transmitter BP6, the second variable amplitude pressure transmitter BP5, the angle sensor for collecting the variable amplitude angle, the positioning pin retraction switch SQ5, the safety valve that automatically starts when the spreader is extended and retracted to prevent misoperation, the on-board indicator light, and the rotary encoder for collecting the rotation angle through wires;

[0053] The disembarkation junction box 6 is connected to the right outrigger deployment position switch SQ8, the left outrigger deployment position switch SQ7, the trolley push-out switch SQ1, the trolley pin extension switch SQ3, the right rear outrigger lifting pressure transmitter BP4, the left rear outrigger lifting pressure transmitter BP3, and the disembarkation indicator light through wires;

[0054] The front junction box 7 is connected to the boom amplitude change level switch SQ6, the trolley retraction switch SQ2, the trolley return pin extension switch SQ4, the right front outrigger lifting pressure transmitter BP2, the left front outrigger lifting pressure transmitter BP1, the remote throttle, and the high-pressure oil filter switch SQ9 for checking impurities in the high-pressure oil in the hydraulic system through wires.

[0055] The electric control box 1 is provided with a controller of model HLT-80DIO, and the corresponding handheld operation box 2 is provided with a remote controller of the same model HLT-80DIO. The controller receives the control signal sent by the remote controller and drives the proportional reversing valve to perform an action.

[0056] The handheld operation box 2 is provided with a display part and an operation panel part, and the display part is provided with a display screen 21, a signal indicator light 22, a battery indicator light 23, and a five-position key 24;

[0057] The operation panel is provided with a power switch 25, a remote control / wire control switch 26, a backup power switch 27, a rocker multiplexing switch 28, a plurality of remote control handles 29, and a rotary potentiometer 20 of a remote throttle;

[0058] A self-reset button switch 201 is disposed on one side of the handheld operation box 2 , and an emergency stop switch 202 is disposed on the other side of the handheld operation box 2 .

[0059] The power switch 25, the remote control / wire control switch 26, the backup power switch 27, and the joystick multiplexing switch 28 are two-position self-locking toggle switches, the emergency stop switch 202 is an emergency stop mushroom head self-locking switch, and the remote control handle 29 is a single-axis linear joystick.

[0060] The wired connection cable between the electric control box 1 and the handheld operation box 2 specifically adopts a CAN bus with optical coupling isolation;

[0061] The wireless communication between the electric control box 1 and the handheld operation box 2 adopts a wireless frequency band ranging from TC6410: 433.075 to 434.750 MHz, and the receiving sensitivity of the wireless signal is -115 dBm / 10 BER.

[0062] A platform vehicle electrical control method comprises the following steps:

[0063] Step 1: Start the electric control box 1 and the handheld operation box 2, and multiple sensors connected to the controller send the collected analog signals to the controller for processing;

[0064] Step 2: Start the wired / wireless remote control module through the remote control / wired control switch on the handheld operation box 2, and the heavy mechanized platform erection vehicle control inputs the control signal from the remote control to the controller, and the controller runs the control program to drive the proportional reversing valve to perform the corresponding action;

[0065] Step 3: Use the rocker multiplexing switch on the handheld operation box 2 to start the function multiplexing of multiple remote control handles, so as to input control signals to the controller through the remote controller to control the movement of the outrigger system, the trolley system, the boom system, and the platform plate;

[0066] Step 4: In the process of controlling the platform car, the controller performs logic protection on the related actions of the platform board erection and withdrawal process;

[0067] Step 5: The display screen on the handheld operation box 2 displays the current status during the operation;

[0068] Step 6: The display screen on the handheld operation box 2 outputs an alarm for the fault information during the operation, lights up the fault indicator light, and displays the corresponding fault code on the display screen.

[0069] The wired / wireless remote control module in step 2 includes the following switch signals, which are multiplexed by the rocker multiplexing switch, specifically:

[0070] The stepless speed regulation controlled by the rotary switch is used to control the speed of the vehicle engine;

[0071] The first remote control handle is used to realize the multiplexing of the functions of retracting and extending the left front outrigger and extending and retracting the boom;

[0072] The second remote control handle is used to realize the multiplexing of the functions of retracting and extending the right front outrigger and adjusting the boom up and down;

[0073] The third remote control handle can be used to realize the function reuse of the trolley moving forward and backward and the boom rotating clockwise and counterclockwise;

[0074] The fourth remote control handle is used to realize the multiplexing of the functions of retracting and unfolding the rear outriggers and retracting and extending the positioning pins;

[0075] The fifth remote control handle is used to realize the multiplexing of the functions of retracting and extending the right rear outrigger and retracting and extending the spreader;

[0076] The sixth remote control handle is used to realize the function reuse of retracting and extending the left rear outrigger and unfolding and retracting the platform end span;

[0077] The seventh remote control handle is used to control the extension and retraction of the platform side panels.

[0078] In step 4, the controller performs logical protection on the related actions of the platform board erection and withdrawal process, which specifically includes:

[0079] The movement of the trolley is controlled by the state of the positioning pin;

[0080] The extension and retraction of the rear outriggers is controlled by setting the rear outrigger pressure value range;

[0081] Other actions of the trolley are controlled by the pressure value signals of the front and rear outriggers and are started successively;

[0082] The movement of the outriggers is controlled by judging the position of the trolley.

[0083] The platform vehicle electrical control system provided by the present invention is a system for controlling the platform erection and removal process, and has the functions of erection and removal process logic control, state monitoring, fault display and the like.

[0084] The main functions of the platform car electrical control system are control and monitoring:

[0085] (1) Control function: Control the outrigger system, trolley system, boom, platform and chassis engine speed respectively;

[0086] (2) Monitoring and measurement function: monitor the electronic control system and hydraulic system of the entire equipment, and measure the current working parameters of the electronic control system and hydraulic system, such as sensor measurement values, key hydraulic circuit pressure, switch status, system working mode, and fault alarm.

[0087] The electrical control system of the platform car is mainly composed of a control part, a data acquisition part, an output device and related accessories; the control part includes an electric control box and a handheld operation box; the data acquisition part includes sensors, encoders, travel switches, etc.; the output devices include solenoid valves, warning lights, signal lights, engine remote throttles, etc.; related accessories include cables, wires, connectors, etc.

[0088] The electric control box is located in the cab of the platform vehicle, and the handheld operation box is located outside the cab. There are two connection modes between the electric control box and the handheld operation box: wired and wireless, and the two connection modes can be switched freely; the main controller in the electric control box and the components are connected by wires through a junction box, and the switching mode adopts an aviation plug connection to achieve fast plugging and unplugging. The electrical control system of the present invention controls the erection and withdrawal of the platform through various execution structures, thereby protecting the safety of equipment and personnel and achieving fast and safe operation.

[0089] The electrical control system of the platform vehicle of the present invention mainly includes five functions, namely: signal acquisition function, wired / wireless control of platform board installation and removal, platform board installation and removal logic protection, data display function, and alarm function. The functions are introduced below respectively.

[0090] (1) Signal acquisition function

[0091] The signal acquisition function is that the system collects and processes the analog signals of the sensor through the controller. The specific analog acquisition signals are shown in Table 1 below:

[0092]

[0093] Table 1 System signal acquisition modules.

[0094] (2) Wired / wireless control station panel installation and removal actions:

[0095] During the erection and removal of the platform panels, the extension and retraction of the outrigger system is controlled; the lateral movement of the trolley and the extension and retraction of the latches in the trolley system are controlled; the pitch, rotation and retraction of the boom in the boom system are controlled; the extension and retraction of the end span platforms and side panels of the platform assembly system and the retraction and retraction of the spreader are controlled.

[0096] Through the remote control / manual switch, wired / wireless remote control is started, and the control input of the heavy mechanized platform erection vehicle is input by the remote control to the controller, and the remote control and the controller communicate using the CAN bus. The controller runs the control program to drive the proportional reversing valve to perform an action. Table 2 below shows the wired / wireless remote control module of the present invention.

[0097]

[0098]

[0099] Table 2 Wired / wireless remote control modules.

[0100] (3) Platform board installation and removal logic protection:

[0101] Logical protection is provided for the related actions during the erection and removal of the platform board, so as to better protect the safety of equipment and personnel. The specific protection measures are as follows:

[0102] 1) The positioning pin return signal is valid, which is a prerequisite for the trolley to move. The movement of the trolley must determine the state of the positioning pin;

[0103] 2) The rear outriggers must be extended and retracted after they leave the ground, i.e. the rear outrigger pressure is no greater than the set value of 5MP;

[0104] 3) All front and rear outriggers must be in place. After the outriggers are fully stressed, other actions such as the trolley can be operated. The next step of operation can only be carried out when the outrigger system is reliably stressed to ensure the safety of equipment and personnel.

[0105] 4) When the trolley is working at the rear of the vehicle, the outriggers cannot be retracted or retracted.

[0106] (4) Data display function:

[0107] The platform car electrical control system uses CAN to display the current system status. The specific situation is shown in Table 3 below:

[0108]

[0109] Table 3 Communication modules.

[0110] The remote control screen displays the pressure values ​​of six hydraulic circuits: left hind leg pressure, right hind leg pressure, left front leg pressure, right front leg pressure, boom 1 pressure, boom 2 pressure, the status of five switches: trolley push out, trolley retract, locating pin extend, locating pin retract, and boom level, as well as the slewing angle, boom elevation angle, movement status, and fault code.

[0111] (5) Alarm function:

[0112] During the operation of the platform car electrical control system, if a fault state or operator error occurs, a fault alarm will be output in the system, thereby lighting up the fault indicator light and the remote control display will display the corresponding fault code. Table 4 below is a comparison table of platform car fault codes.

[0113]

[0114] Table 4 Platform vehicle fault code comparison table.

[0115] The main controller of the present invention adopts a controller of model HLT-80DIO. The HLT-80DIO series controller is a special controller for controlling walking equipment and sports machinery, with rich I / O interfaces, and its performance reliability, waterproof, shockproof and other protection levels are very high. The controller has a compact structure, high reliability, simple programming, powerful instructions, and strong flexibility; at the same time, the internal integrated software and hardware provide effective protection for the equipment connected to the controller.

[0116] The handheld operation box of the present invention adopts a remote control transmitter of model HLT-80DIO. The handheld operation box is equipped with a liquid crystal display screen to display feedback information. The wireless frequency band range is TC6410: 433.075~434.750MHz, the RX sensitivity is -115dBm / 10BER, different devices have different device identification codes, and multiple devices can be used at the same time. The wired cable adopts a CAN output channel with optical coupling isolation, supports CANopen protocol, CAN2.0A / B, and has the characteristics of good real-time performance, high reliability, strong anti-interference ability, and long communication distance.

[0117] The controller of the present invention, model HLT-80DIO, integrates CANOpen and CAN2.0B bus interfaces, up to 118 specially designed I / O ports, and 32-bit flexibly expandable I / Os can provide customers with complete control functions and can directly drive most solenoid valves and proportional valves of various brands. CPU: Infineon SAK-XE164 80MHz; RAM: 32KB + 512KB; FLASH: 4MB; 2-way CAN, supporting CANopen, J1939, and customization; 2-way RS232, one for programming; I / O interface: 20-way switch input, 8-way voltage analog input, supporting 0-10VDC, 15-way current analog input, supporting 0-20mA, 2-way voltage analog output, supporting 0-5VDC, 20-way switch output, maximum current 2A, can be reused as switch input; 30-way PWM output, maximum output current 2A; frequency 100, 500, 1KHZ Adjustable; with freewheeling diode; can be reused as switch output and analog current output; 2 reference voltage outputs, 5V and 10V each.

[0118] Among them, the controller's IO numbered IN1-IN11 corresponds to the switch input's 1-11 pins, which are respectively connected through wires to the trolley push-out travel switch, the trolley retracting travel switch, the trolley push-out positioning pin extending travel switch, the trolley retracting positioning pin travel switch, the positioning pin retracting travel switch, the boom amplitude change horizontal in-position travel switch, the high-pressure oil filter alarm switch, the remote control wire control / manual switching switch, the safety valve switch, the left outrigger deployed in-position switch, and the right outrigger deployed in-position switch. The switch input's 1-11 pins correspond to the controller's 186 pins, 163 pins, 118 pins, 136 pins, 141 pins, 137 pins, 241 pins, 240 pins, 123 pins, 239 pins, and 188 pins, respectively.

[0119] Among them, the controller's IO numbered IN43-IN50 corresponds to the analog input pins 16-23, which are respectively connected to the amplitude angle sensor, the rotation angle sensor, the left front outrigger lifting pressure sensor, the right front outrigger lifting pressure sensor, the left rear outrigger lifting pressure sensor, the rear outrigger lifting pressure sensor, the first amplitude pressure transmitter, and the second amplitude pressure transmitter through wires. The analog input pins 16-23 correspond to pins 155, 127, 147, 158, 145, 154, 156, and 157 of the controller respectively.

[0120] Among them, the controller's IO numbered OUT1-OUT8 corresponds to the PWM output pins 1-8, which are respectively connected to the left rear leg lifting, right rear leg lifting, left front leg lifting, and right front leg lifting outputs through wires. The PWM output pins 1-8 correspond to pins 256, 257, 258, 259, 252, 253, 254, and 255 of the controller respectively.

[0121] Among them, the IO numbered OUT11-OUT28 of the controller corresponds to the PWM output pins 11-28, which are respectively connected to the rear outrigger telescopic proportional valve, the trolley movement proportional valve, the amplitude cylinder proportional valve, the latch cylinder proportional valve, the rotary motor proportional valve, the telescopic cylinder proportional valve, the end span flip cylinder proportional valve, the table telescopic cylinder proportional valve, and the hoist tension cylinder proportional valve through wires. The PWM output pins 11-28 correspond to pins 236, 251, 233, 248, 234, 249, 231, 246, 232, 247, 221, 222, 238, 237, 218, 201, 219, and 220 of the controller respectively.

[0122] Among them, the controller's IO numbered OUT38-OUT44 corresponds to the switch output pins 2-8 which are connected to the alarm light, leg extension light, trolley exit light, trolley return light, pin extension light, pin retraction light, and amplitude adjustment level light through wires. The switch output pins 2-9 correspond to the controller's pins 176, 175, 244, 179, 178, 245, and 260 respectively.

[0123] The switch output pin 9 corresponding to the IO number OUT45 of the controller is connected to the safety valve through a wire, and the switch output pin 9 corresponds to the 181 pin of the controller; the analog output pin 1 corresponding to the IO number OUT31 of the controller is connected to the remote throttle through a wire, and the analog output pin 1 corresponds to the 217 pin of the controller.

[0124] The on-board junction box is connected to YV7-13 through wires, where YV7-13 represents the boom extension and retraction, boom amplitude change, boom rotation, positioning pin extension and retraction, hoist extension and retraction, platform end span extension and retraction, and platform side panel extension and retraction on the controller respectively. The off-board junction box is connected to YV1-6 through wires, where YV1-6 represents the left front outrigger extension and retraction, right front outrigger extension and retraction, trolley movement, rear outrigger extension and retraction, right rear outrigger extension and retraction, and left rear outrigger extension and retraction on the controller respectively.

[0125] The electrical control system of the platform vehicle of the present invention integrates the outrigger system, the trolley system, the boom movement, the platform deck and the chassis engine speed control into one, is operated using a set of control handles and controlled using a controller, is more convenient and practical, and facilitates centralized control.

[0126] The present invention monitors the status of switches and sensors at key locations in real time to quickly eliminate faults, improve work efficiency, and integrate fault diagnosis into the electrical control system.

[0127] The various systems of the present invention are connected through a junction box and an aviation plug to achieve modular control and quick plug-in and pull-out.

[0128] What needs to be explained about the specific structure of the present invention is that the connection relationship between the various component modules adopted in the present invention is definite and feasible. Except for the special instructions in the embodiments, the specific connection relationship can bring about the corresponding technical effects, and solve the technical problems raised by the present invention without relying on the execution of the corresponding software program. Except for the specific instructions, the models and connection methods of the components, modules and specific components appearing in the present invention belong to the existing technologies such as published patents, published journal articles, or common knowledge that can be obtained by technical personnel in this field before the application date, and there is no need to elaborate, so that the technical solution provided in this case is clear, complete and feasible, and the corresponding physical products can be reproduced or obtained according to the technical means.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A platform vehicle electrical control system, comprising a control part, a data acquisition part, and an output device part, characterized in that: The control part realizes centralized control of the outrigger system movement, the trolley system movement, the boom system movement, the platform plate movement and the chassis engine speed through the working parameters of the electric control system and the hydraulic system set on the platform vehicle collected by the data collection part; The output device monitors and measures the working status of the electronic control system and the hydraulic system through the control part, and realizes the fault alarm, display and prompt of the system; The control part comprises an electric control box (1) arranged in the cab of the platform vehicle and a handheld operation box (2) arranged outside the cab of the platform vehicle, wherein data transmission between the electric control box (1) and the handheld operation box (2) is achieved through wired and wireless modes, and the two communication modes can be switched freely, wherein the wired data transmission between the electric control box (1) and the handheld operation box (2) is achieved through a wired control junction box (3) arranged, and the wireless data transmission between the electric control box (1) and the handheld operation box (2) is achieved through an antenna at the top of the electric control box (1); The electric control box (1) is connected to the onboard junction box (5), the offboard junction box (6), and the front junction box (7) respectively through wires, and the electric control box (1) is also provided with a debugging interface and a power supply interface; The on-board junction box (5) is respectively connected to the first variable amplitude pressure transmitter BP6, the second variable amplitude pressure transmitter BP5, the angle sensor for collecting the variable amplitude angle, the positioning pin retraction switch SQ5, the safety valve, the on-board indicator light, and the rotary encoder for collecting the rotation angle through wires; The vehicle disembarkation junction box (6) is connected to the right outrigger deployment position switch SQ8, the left outrigger deployment position switch SQ7, the trolley push-out switch SQ1, the trolley pin extension switch SQ3, the right rear outrigger lifting pressure transmitter BP4, the left rear outrigger lifting pressure transmitter BP3, and the vehicle disembarkation indicator light through wires; The front junction box (7) is connected to the boom level switch SQ6, the trolley retraction switch SQ2, the trolley retraction pin extension switch SQ4, the right front outrigger lifting pressure transmitter BP2, the left front outrigger lifting pressure transmitter BP1, the remote throttle, and the high-pressure oil filter switch SQ9 through wires; The electric control box (1) is internally provided with a controller of model HLT-80DIO, and the corresponding handheld operation box (2) is internally provided with a remote controller of the same model HLT-80DIO. The controller receives a control signal sent by the remote controller and drives the proportional reversing valve to perform an action.

2. The electrical control system of a platform vehicle according to claim 1, characterized in that: The handheld operating box (2) is provided with a display portion and an operating panel portion, wherein the display portion is provided with a display screen (21), a signal indicator light (22), a battery indicator light (23), and a five-position key (24); The operation panel is provided with a power switch (25), a remote control / wire control switch (26), a backup power switch (27), a joystick multiplexing switch (28), a plurality of remote control handles (29), and a rotary potentiometer (20) for a remote throttle; A self-resetting key switch (201) is provided on one side of the handheld operation box (2), and an emergency stop switch (202) is provided on the other side of the handheld operation box (2).

3. The electrical control system of a platform vehicle according to claim 1, characterized in that: The wired connection cable between the electric control box (1) and the handheld operation box (2) specifically adopts a CAN bus with optical coupling isolation; The wireless communication between the electric control box (1) and the handheld operation box (2) uses a wireless frequency band in the range of TC6410: 433.075-434.750 MHz, and the receiving sensitivity of the wireless signal is -115 dBm / 10 BER.

4. A platform vehicle electrical control method, using the platform vehicle electrical control system according to any one of claims 1 to 3, characterized in that: The steps include: Step 1: starting the electric control box (1) and the handheld operation box (2), and multiple sensors connected to the controller send collected analog signals to the controller for processing; Step 2: The wired / wireless remote control module is activated by switching the remote control / wired control switch on the handheld operation box (2). The control input of the heavy mechanized platform erection vehicle is inputted into the controller through the remote control. The controller runs the control program, thereby driving the proportional reversing valve to perform the corresponding action. Step 3: Use the rocker multiplexing switch on the handheld operation box (2) to start the function multiplexing of multiple remote control handles, so as to input control signals to the controller through the remote controller to control the movement of the outrigger system, the trolley system, the boom system, and the platform plate; Step 4: In the process of controlling the platform car, the controller performs logic protection on the related actions of the platform board erection and withdrawal process; Step 5: The display screen on the handheld operation box (2) displays the current status during the operation; Step 6: The display screen on the handheld operation box (2) outputs an alarm for fault information during the operation, lights up the fault indicator light, and displays the corresponding fault code on the display screen.

5. The electrical control method of a platform vehicle according to claim 4, characterized in that: The wired / wireless remote control module in step 2 includes the following switch signals, which are multiplexed by the rocker multiplexing switch, specifically: The stepless speed regulation controlled by the knob switch is used to control the speed of the vehicle engine; The first remote control handle is used to realize the multiplexing of the functions of retracting and extending the left front outrigger and extending and retracting the boom; The second remote control handle is used to realize the multiplexing of the functions of retracting and extending the right front outrigger and adjusting the boom up and down; The third remote control handle can be used to realize the function reuse of the trolley moving forward and backward and the boom rotating clockwise and counterclockwise; The fourth remote control handle is used to realize the multiplexing of the functions of retracting and unfolding the rear outriggers and retracting and extending the positioning pins; The fifth remote control handle is used to realize the multiplexing of the functions of retracting and extending the right rear outrigger and retracting and extending the spreader; The sixth remote control handle is used to realize the function reuse of retracting and extending the left rear outrigger and unfolding and retracting the platform end span; The seventh remote control handle is used to control the extension and retraction of the platform side panels.

6. The electrical control method of a platform vehicle according to claim 4, characterized in that: In step 4, the controller performs logical protection on the related actions of the platform board erection and withdrawal process, which specifically includes: The movement of the trolley is controlled by the state of the positioning pin; The extension and retraction of the rear outriggers is controlled by setting the rear outrigger pressure value range; Other actions of the trolley are controlled by the pressure value signals of the front and rear outriggers and are started successively; The movement of the outriggers is controlled by judging the position of the trolley.

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