CN114987133A - Military oil-gas suspension calibration system and method based on human-computer interaction - Google Patents

Military oil-gas suspension calibration system and method based on human-computer interaction Download PDF

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Publication number
CN114987133A
CN114987133A CN202210684104.3A CN202210684104A CN114987133A CN 114987133 A CN114987133 A CN 114987133A CN 202210684104 A CN202210684104 A CN 202210684104A CN 114987133 A CN114987133 A CN 114987133A
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China
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oil
hydro
gas suspension
pneumatic suspension
calibration
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CN202210684104.3A
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CN114987133B (en
Inventor
汤鹏杰
黄朝源
李继祥
张玥
向著文
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Dongfeng Off Road Vehicle Co Ltd
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Dongfeng Off Road Vehicle Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/018—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
    • B60G17/0182—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method involving parameter estimation, e.g. observer, Kalman filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B60G17/01908—Acceleration or inclination sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/06—Characteristics of dampers, e.g. mechanical dampers
    • B60G17/08—Characteristics of fluid dampers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/20—Type of damper
    • B60G2202/24—Fluid damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/25—Stroke; Height; Displacement
    • B60G2400/252—Stroke; Height; Displacement vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/25—Stroke; Height; Displacement
    • B60G2400/256—Stroke; Height; Displacement horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60G2401/90—Single sensor for two or more measurements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/90—System Controller type
    • B60G2800/91—Suspension Control
    • B60G2800/912—Attitude Control; levelling control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/90—System Controller type
    • B60G2800/91—Suspension Control
    • B60G2800/914—Height Control System
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention discloses a military oil-gas suspension calibration system and method based on human-computer interaction, wherein the system comprises a power transmission system, a hydraulic control element connected with the power transmission system, a hydraulic execution element connected with the hydraulic control element, an electric control system and a sensing system connected with the electric control system; the central controller is used for selectively controlling the opening and closing of the control valve assembly, so that the oil cylinder of the oil-gas suspension selectively executes lifting movement; the height sensor assembly and the horizontal sensor are used for sensing and collecting height signals and frame horizontal inclination angle signals of oil cylinders of the oil-gas suspension corresponding to the height sensor assembly and the horizontal sensor and transmitting the height signals and the frame horizontal inclination angle signals to the central controller, the central controller feeds the signals back to the display screen in a data form, the control panel is operated by judging data values to adjust the oil cylinders of the oil-gas suspension and achieve a calibrated height, and calibration of working height positions of the oil-gas suspension under various working conditions is rapidly and accurately completed through man-machine interaction; the calibration consistency is high, and the ground clearance requirement of the hydro-pneumatic suspension can be ensured.

Description

Military oil-gas suspension calibration system and method based on human-computer interaction
Technical Field
The invention belongs to the technical field of automobile assembly and adjustment processes, and particularly relates to a military oil-gas suspension calibration system and method based on human-computer interaction.
Background
The suspension system elastically connects the vehicle frame and the axle, and is used for transmitting force and moment acting between the wheels and the vehicle frame, buffering impact force transmitted to the vehicle frame or the vehicle body from an uneven road surface, and attenuating vibration caused by the impact force so as to ensure that the vehicle can smoothly run; there are two broad categories of known vehicle suspensions, leaf spring suspensions and hydro-pneumatic suspensions. The spring characteristics of the leaf spring type suspension are linear, and the requirements of high driving smoothness and operation stability cannot be met. The hydro-pneumatic suspension has the variable stiffness characteristic, so that the driving smoothness of a vehicle on a general road surface can be improved, and the situation that the suspension is broken down when the vehicle runs on a large-fluctuation road surface can be prevented. For engineering vehicles working under severe road conditions and load bearing conditions, the hydro-pneumatic suspension can more remarkably alleviate impact and reduce jolt, so that the labor conditions of drivers are improved, and the average vehicle speed is increased.
Compared with a common vehicle, the military off-road vehicle usually runs under a severe environment, the hydro-pneumatic suspension is a suspension system which is assembled on the vehicle and can adjust the height of a chassis, can play a role in supporting the chassis, buffering impact jolt, improving driving and riding comfort, improving the speed of the vehicle and the like, and improves the obstacle crossing capability and function of the vehicle on the road surface. After the assembly of the hydro-pneumatic suspension is finished, the initial position and the limit position of each vehicle are different, the hydro-pneumatic suspension needs to be adjusted to the same horizontal position for working, the hydro-pneumatic suspension is used as a newly developed product, a corresponding calibration process flow is lacked, the high, middle and low positions of the suspension are difficult to define during calibration, and the system is easy to fail to memorize the high, middle and low positions of the suspension in the calibration process; the time for calibrating the horizontal inclination angle and the specific calibration method are difficult to master; the height calibration of the suspension oil cylinder is difficult to unify; the nonstandard operation can cause that the oil is not filled in the system, the high position cannot be adjusted, and the overall calibration efficiency is low.
Therefore, a process method for highly calibrating the hydro-pneumatic suspension, which can improve calibration efficiency, standard operation and good consistency of calibration quality, is urgently needed, and is convenient to operate while the precision requirement is ensured.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides a military oil-gas suspension calibration system and method based on man-machine interaction, wherein a central controller is used for selectively controlling the opening and closing of a control valve component, so that 6 oil-gas suspension oil cylinders selectively execute lifting motion; the height sensor assembly and the horizontal sensor are used for sensing and collecting height signals and vehicle frame horizontal inclination angle signals of oil cylinders of the oil-gas suspension corresponding to the height sensor assembly and the horizontal sensor, the sensed and collected signals are fed back to a display screen in a data form through the central controller, the control panel is operated through judging data values to selectively adjust the oil cylinders of the oil-gas suspension to enable the oil cylinders of the oil-gas suspension to reach a calibration height, and calibration of working height positions of the oil-gas suspension under various working conditions is rapidly and accurately completed through man-machine interaction; according to the height working condition position required by the vehicle, the lifting of the oil cylinder of the oil-gas suspension is manually adjusted, so that the chassis height of the vehicle is adjusted, and the ground clearance is fed back by using a height sensor and a horizontal sensor; comparing the vehicle chassis height data through actual measurement, and inputting the obtained data in a control panel system to form quantitative data memory; the calibration of the working height position of each working condition of the oil-gas suspension is correctly and quickly calibrated by an operator; the military oil-gas suspension calibration process method based on human-computer interaction forms a set of standard military oil-gas suspension height calibration process operation, standardizes the calibration flow, reduces the operation difficulty, improves the calibration consistency, ensures the ground clearance requirement of the oil-gas suspension, has good calibration quality consistency, is in standard operation, and can quickly identify and dispose the abnormal condition in a single step; the technical problem of calibration of the oil-gas suspension of the military off-road vehicle in the prior art can be solved.
In order to achieve the above object, one aspect of the present invention provides a military oil-gas suspension calibration system based on human-computer interaction, which includes a power transmission system, a hydraulic control element connected to the power transmission system, a hydraulic execution element connected to the hydraulic control element, an electronic control system, and a sensing system connected to the electronic control system; wherein,
the power transmission system comprises a hydraulic pump connected with the hydraulic control element and a hydraulic oil tank connected with the hydraulic pump; the hydraulic control component comprises control valve components which are connected with the hydraulic pump and are symmetrically arranged on two sides of the longitudinal central axis of the vehicle; the hydraulic executing element comprises 6 oil gas suspension oil cylinders symmetrically arranged along two sides of a longitudinal central axis of the vehicle, the upper moving point of each oil gas suspension oil cylinder is connected with the frame, the bottom supporting point is connected with the tire triangular arm, and the hydraulic controlling element controls the piston rod in each oil gas suspension oil cylinder to move up and down to drive the frame to move up and down so as to drive the chassis to move up and down and realize the adjustment of the height of the chassis; the electric control system comprises a control panel, a display screen and a central controller which are in communication connection with each other; the sensing system comprises a height sensor assembly connected with the hydro-pneumatic suspension oil cylinder and a horizontal sensor connected with the frame; the central controller is used for selectively controlling the opening and closing of the control valve assembly, so that 6 hydro-pneumatic suspension oil cylinders selectively execute lifting motion; the height sensor assembly and the horizontal sensor (55) are used for sensing and collecting height signals and vehicle frame horizontal inclination angle signals of the oil cylinders of the oil gas suspension corresponding to the height sensor assembly and the horizontal sensor, the sensed and collected signals are fed back to a display screen in a data form through a central controller, the oil cylinders of the oil gas suspension are selectively adjusted through the control panel by judging data values, the oil cylinders of the oil gas suspension are made to reach a calibration height, and calibration of working height positions of the oil gas suspension under various working conditions is quickly and accurately completed through man-machine interaction.
Furthermore, an automatic mode selection key, a manual mode selection key, a low-level function key, a middle-level function key, a high-level function key, a leveling function key, a self-defined key, a rigid locking key and a rigid locking key indicator lamp are arranged on the control panel;
the manual mode selection key can switch the hydro-pneumatic suspension system to a manual mode, and a leveling function key and a user-defined key of the hydro-pneumatic suspension system can be in an effective state; so as to realize the manual adjustment of the position of the hydro-pneumatic suspension cylinder;
the automatic mode selection key can enable a low-order function key, a middle-order function key, a high-order function key and a user-defined key of the oil-gas suspension system to be in an effective state;
the low-order function key can enable the oil-gas suspension system to return to a low order according to finished low-order memory data; the middle function key can enable the oil gas suspension system to return to the middle position according to the finished middle memory data; the high-order function key can enable the oil-gas suspension system to return to a high order according to finished high-order memory data;
the automatic mode selection key can enable the rigid locking key to be invalid and cannot realize the locking function; in a non-automatic mode state, a rigid locking key is pressed, a rigid locking key indicator lamp is on, and an oil-gas suspension system is controlled to realize rigid locking of the oil-gas suspension system; pressing the rigid locking button again, turning off the rigid locking button indicator lamp, and releasing the rigid locking of the oil-gas suspension system;
the leveling function key can automatically adjust the vehicle from an inclined state to a horizontal state;
the user-defined key can realize the memory function of calibration data when continuously pressing the user-defined key for more than 5 seconds for three times;
the display screen can display data fed back by the sensing system and overflow valve pressure data.
Further, the control valve assembly comprises a main control valve respectively connected with the hydraulic pump, a first control valve, a second control valve, a third control valve and a fourth control valve respectively connected with the main control valve; an overflow valve is integrated in the main control valve;
the 6 oil-gas suspension oil cylinders are respectively a first oil-gas suspension oil cylinder connected with the first control valve, a second oil-gas suspension oil cylinder connected with the second control valve, a third oil-gas suspension oil cylinder and a fifth oil-gas suspension oil cylinder connected with the third control valve, and a fourth oil-gas suspension oil cylinder and a sixth oil-gas suspension oil cylinder connected with the fourth control valve; the first hydro-pneumatic suspension oil cylinder and the second hydro-pneumatic suspension oil cylinder are symmetrically arranged on the left side and the right side of the longitudinal central axis of the vehicle; the third hydro-pneumatic suspension cylinder and the fourth hydro-pneumatic suspension cylinder are symmetrically arranged on the left side and the right side of the longitudinal central axis of the vehicle; the fifth hydro-pneumatic suspension oil cylinder and the sixth hydro-pneumatic suspension oil cylinder are symmetrically arranged on the left side and the right side of the longitudinal central axis of the vehicle; the first hydro-pneumatic suspension oil cylinder and the second hydro-pneumatic suspension oil cylinder are positioned on a front axle of a vehicle, and the first hydro-pneumatic suspension oil cylinder and the second hydro-pneumatic suspension oil cylinder respectively and independently drive a chassis; the third hydro-pneumatic suspension cylinder and the fourth hydro-pneumatic suspension cylinder are positioned on a middle axle of the vehicle; the fifth hydro-pneumatic suspension oil cylinder and the sixth hydro-pneumatic suspension oil cylinder are positioned on a rear axle of the vehicle; the third hydro-pneumatic suspension oil cylinder is communicated with the fifth hydro-pneumatic suspension oil cylinder and synchronously drives the chassis; the fourth hydro-pneumatic suspension cylinder is communicated with the sixth hydro-pneumatic suspension cylinder and synchronously drives the chassis;
the height sensor assembly comprises a first height sensor connected with the first hydro-pneumatic suspension oil cylinder, a second height sensor connected with the second hydro-pneumatic suspension oil cylinder, a third height sensor connected with the third hydro-pneumatic suspension oil cylinder and the fifth hydro-pneumatic suspension oil cylinder, a fourth height sensor connected with the fourth hydro-pneumatic suspension oil cylinder and the sixth hydro-pneumatic suspension oil cylinder, and a horizontal sensor connected with the frame.
The invention also provides a military oil-gas suspension calibration process method based on human-computer interaction, which comprises the following steps:
s1: starting an oil-gas suspension system to electrify and refuel the oil-gas suspension system, checking and confirming that a manual valve is in a closed state, lifting an oil-gas suspension cylinder of the oil-gas suspension system to the highest position, and filling hydraulic lifting oil to the position of a scale mark 2.5-3 of an observation window of an oil tank;
s2: exhausting the hydraulic oil inlet and outlet oil pipe pipeline of the hydro-pneumatic suspension system, descending all hydro-pneumatic suspension oil cylinders of the hydro-pneumatic suspension system to the lowest position, then ascending to the highest position, repeating for 5-7 times, and exhausting air in the hydraulic oil inlet and outlet oil pipe pipeline of the hydro-pneumatic suspension system;
s3: respectively carrying out low position calibration, high position calibration and middle position calibration on the oil gas suspension system, memorizing low position calibration data, high position calibration data and middle position calibration data, and then verifying the memorized low position calibration data, high position calibration data and middle position calibration data until the requirements are met;
s4: selecting an automatic mode to verify the time of the oil gas suspension system from low position to middle position;
s5: disconnecting the power supply of a control panel of the oil-gas suspension system for 1 minute, and enabling the oil-gas suspension system to memorize calibration data and restart updating;
s6: starting a power supply of the oil-gas suspension system, switching to a manual mode, and calibrating a horizontal inclination angle;
s7: verifying and confirming the rigidity locking function, the pressure of an overflow valve and the hydraulic oil level of the oil-gas suspension system;
s8: and (5) disconnecting the power supply of the control panel of the oil-gas suspension system for 1 minute, and finishing calibration.
Further, step S3 further includes the following steps:
s31, performing low-position calibration on the oil gas suspension system, selecting a manual mode, lowering all oil gas suspension cylinders of the oil gas suspension system to the lowest position, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground, checking whether the distances meet the requirements, if not, selecting the oil gas suspension cylinders needing to be adjusted to inching and adjust the high and low positions of the oil gas suspension cylinders, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground again, continuously repeating the adjustment until the distances meet the requirements, continuously pressing a user-defined button for more than 5 seconds for three times, and memorizing the low-position calibration data of the oil gas suspension system;
s32, performing high-order calibration on the hydro-pneumatic suspension system, selecting a manual mode, lifting all hydro-pneumatic suspension oil cylinders of the hydro-pneumatic suspension system to the highest position, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground, checking whether the distances meet the requirements, if not, selecting the hydro-pneumatic suspension oil cylinders needing to be adjusted to inching and adjust the high and low positions of the hydro-pneumatic suspension oil cylinders, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground again, continuously repeating the adjustment until the distances meet the requirements, continuously pressing the user-defined key for more than 5 seconds for three times, and memorizing high-order calibration data of the hydro-pneumatic suspension system;
s33, performing middle position calibration on the oil gas suspension system, selecting a manual mode, lowering all oil gas suspension cylinders of the oil gas suspension system to a middle position, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground, checking whether the distances meet the requirements, if not, selecting the oil gas suspension cylinders needing to be adjusted to inching and adjust the height positions of the oil gas suspension cylinders, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground again, continuously repeating the adjustment until the distances meet the requirements, continuously pressing a user-defined key for more than 5 seconds for three times, and memorizing middle position calibration data of the oil gas suspension system;
s34: selecting an automatic mode, and sequentially verifying the high-order calibration data of the hydro-pneumatic suspension system obtained in the step S32, the middle-order calibration data of the hydro-pneumatic suspension system obtained in the step S33 and the low-order calibration data of the hydro-pneumatic suspension system obtained in the step S31; respectively and sequentially selecting a high-order function key, a middle-order function key and a low-order function key which finish memorizing data and executing commands, respectively measuring the distances between the lower cross beams of the front axle and the rear axle and the ground when the oil-gas suspension system is at a high order, a middle order and a low order, checking whether the distances meet the requirements, if any one of the distances does not meet the requirements, selecting corresponding calibration items in the steps S31-S33 to recalibrate, memorizing recalibration data, and then repeating the step S34 to verify the memorized recalibration data until the calibration data meet the requirements.
Further, step S4 further includes: in an automatic mode, a low-position function key of the oil-gas suspension system is selected and executed, a middle-position function key is selected to start execution, a stopwatch is used for recording the time for switching the low-position function to the middle-position function, whether the requirement is met or not is confirmed by taking the condition that the low-position function key is turned off until the middle-position function key is turned on as a reference, and otherwise, the flow of an overflow valve is adjusted, the verification is carried out again, and the operation and the adjustment are repeated until the requirement is met.
Further, step S6 further includes: selecting a leveling function key on a control panel, lifting three hydro-pneumatic suspension cylinders on one side of a longitudinal central axis of the vehicle to a high position, lowering the three hydro-pneumatic suspension cylinders on the other side of the longitudinal central axis of the vehicle to a low position, continuously pressing a user-defined key for more than 5 seconds for three times, automatically calibrating and acquiring leveling data by a hydro-pneumatic suspension system, recording the time for completing calibration of a horizontal inclination angle, confirming whether the requirement is met, otherwise, adjusting the flow of an overflow valve, and verifying again until the requirement is met.
Further, the verification of the rigid latching function of step S7 includes: selecting an automatic mode to verify the rigidity locking function of the oil-gas suspension system; in the automatic mode, the rigid locking key is not effective when being pressed, and the locking function cannot be realized; in other states, a rigid locking key is pressed, a key working indicator lamp is on, and the control system realizes rigid locking of the oil-gas suspension system; and pressing a rigid locking key, turning off a key working indicator lamp, and removing the rigid locking of the oil-gas suspension system, otherwise, carrying out fault troubleshooting.
Further, the relief valve pressure verification at step S7 includes: all hydro-pneumatic suspension cylinders of the hydro-pneumatic suspension system are adjusted to be in a middle position or a high position, pressure data of an overflow valve is read in a display screen, whether the pressure data meet requirements or not is confirmed, and fault troubleshooting is carried out if the pressure data do not meet the requirements.
Further, the hydraulic oil level final verification at step S7 includes: and observing a liquid level indicator of a hydraulic oil tank, wherein when the oil cylinder of the oil-gas suspension is at a high position, the liquid level of an observation window of the liquid level indicator reads 2.5-3, otherwise, the hydraulic oil is filled to the required range.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) according to the military oil-gas suspension calibration system based on human-computer interaction, the control valve component is selectively opened and closed through the central controller, so that 6 oil cylinders of the oil-gas suspension selectively execute lifting motion; the height sensor assembly and the horizontal sensor are used for sensing and collecting height signals and vehicle frame horizontal inclination angle signals of the corresponding hydro-pneumatic suspension cylinders, the central controller is used for feeding back the sensed and collected signals to the display screen in a data form, the control panel is operated by judging data values to selectively adjust the hydro-pneumatic suspension cylinders to achieve a calibrated height, and calibration of working height positions of the hydro-pneumatic suspension under various working conditions is rapidly and accurately completed through man-machine interaction.
(2) The invention relates to a military oil-gas suspension calibration process method based on human-computer interaction, which comprises the following steps of firstly electrifying and oiling an oil-gas suspension system; then exhausting the oil gas suspension system pipeline; respectively carrying out low-position calibration, high-position calibration and middle-position calibration on the oil-gas suspension system, memorizing low-position calibration data, high-position calibration data and middle-position calibration data, and verifying the memorized low-position calibration data, high-position calibration data and middle-position calibration data until the requirements are met; selecting an automatic mode to verify the time from the low position to the middle position; disconnecting the power supply of a control panel of the oil-gas suspension system for 1 minute, and enabling the oil-gas suspension system to memorize calibration data and restart updating; then starting a power supply of the oil-gas suspension system, switching to a manual mode, and calibrating a horizontal inclination angle; then verifying and confirming the rigidity locking function, the pressure of an overflow valve and the hydraulic oil level of the oil-gas suspension system; finally, disconnecting the power supply of the control panel of the oil-gas suspension system for 1 minute to finish calibration; according to the height working condition position required by the vehicle, the lifting of the oil cylinder of the oil-gas suspension is manually adjusted, so that the chassis height of the vehicle is adjusted, and the ground clearance is fed back by using a height sensor and a horizontal sensor; comparing the vehicle chassis height data through actual measurement, and inputting the obtained data in a control panel system to form quantitative data memory; the calibration of the working height position of each working condition of the hydro-pneumatic suspension is correctly and quickly calibrated by an operator; the military oil-gas suspension calibration process method based on human-computer interaction forms a set of standard military oil-gas suspension height calibration process operation, standardizes the calibration flow, reduces the operation difficulty, improves the calibration consistency, ensures the ground clearance requirement of the oil-gas suspension, has good calibration quality consistency, is in standard operation, and can quickly identify and dispose the abnormal condition in a single step; the technical problem of oil gas suspension calibration in the prior art can be solved.
(3) The invention relates to a military oil-gas suspension calibration process method based on human-computer interaction, which comprises the steps of lowering an oil-gas suspension system to the lowest position when the oil-gas suspension system is subjected to low position calibration, raising the oil-gas suspension system to the highest position when the oil-gas suspension system is subjected to high position calibration, lowering the oil-gas suspension system to the middle position when the oil-gas suspension system is subjected to middle position calibration, checking whether the oil-gas suspension system meets the requirements or not by measuring the distances between lower cross beams of a front axle and a rear axle and the ground, if the oil-gas suspension system does not meet the requirements, selecting a suspension needing to be adjusted to perform inching to adjust the high and low positions of the oil-gas suspension, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground again, continuously repeating adjustment until the oil-gas suspension system meets the requirements, continuously pressing a user-defined key for more than 5 seconds, and completing and memorizing low position calibration data, high position calibration data and middle position calibration data of the oil-gas suspension system; standard operation, the single step can be identified and disposed quickly when the exception occurs; the method can solve the problems that the high, middle and low positions of the suspension are difficult to define when the suspension system is calibrated in the prior art, and the system easily fails to memorize the high, middle and low positions of the suspension in the calibration process.
(4) After the time from the low position to the middle position of a suspension system is determined, selecting a leveling function key to perform rough leveling, lifting three oil-gas suspension cylinders on the right to the high position, lowering three oil-gas suspension cylinders on the left to the low position, continuously pressing a user-defined key for more than 5 seconds for three times, automatically calibrating and obtaining leveling data by the oil-gas suspension system, recording the time for finishing calibrating the horizontal inclination angle, determining whether the calibration meets the requirement, otherwise, adjusting the flow of an overflow valve, verifying again until the calibration meets the requirement, and finishing calibrating the horizontal inclination angle; the time and the specific calibration method for calibrating the horizontal inclination angle are simple, and the defects that the time and the specific calibration method for calibrating the horizontal inclination angle of the oil-gas suspension system in the prior art are difficult to master and the height calibration of the suspension cylinder is difficult to unify can be overcome.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a military oil-gas suspension calibration system based on human-computer interaction according to an embodiment of the invention;
FIG. 2 is a schematic view of the overall operation process of a military oil-gas suspension calibration process method based on human-computer interaction according to an embodiment of the invention;
FIG. 3 is a schematic flow chart of a military oil-gas suspension calibration process method based on human-computer interaction according to an embodiment of the invention;
FIG. 4 is a schematic flow chart of hydraulic lifting oil filling of an oil-gas suspension system of a military oil-gas suspension calibration process method based on human-computer interaction according to an embodiment of the invention;
FIG. 5 is a schematic flow diagram of high-low mid-position calibration, memory and verification of an oil-gas suspension system of the military oil-gas suspension calibration process method based on human-computer interaction according to the embodiment of the invention;
FIG. 6 is a schematic flow chart of horizontal tilt angle calibration of an hydro-pneumatic suspension system of a military hydro-pneumatic suspension calibration process method based on human-computer interaction according to an embodiment of the present invention;
FIG. 7 is a schematic flow chart of calibration time and function verification of a horizontal inclination angle of an oil-gas suspension system of the military oil-gas suspension calibration process method based on human-computer interaction.
In all the figures, the same reference numerals denote the same features, in particular: 1-power transmission system, 11-hydraulic pump, 12-hydraulic oil tank, 13-hydraulic oil inlet and outlet pipeline, 2-hydraulic control element, 21-first control valve, 22-second control valve, 23-third control valve, 24-fourth control valve, 25-main control valve, 3-hydraulic execution element, 31-first hydro-pneumatic suspension oil cylinder, 32-second hydro-pneumatic suspension oil cylinder, 33-third hydro-pneumatic suspension oil cylinder, 34-fourth hydro-pneumatic suspension oil cylinder, 35-fifth hydro-pneumatic suspension oil cylinder, 36-sixth hydro-pneumatic suspension oil cylinder, 4-electric control system, 41-control panel, 42-display screen, 43-central control system, 5-sensing system, 51-first height sensor, 52-second height sensor, 53-third height sensor, 54-fourth height sensor, 55-level sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the invention provides a military oil-gas suspension calibration system based on human-computer interaction, which is applied to a 6 × 6 chassis system, is driven by 6 oil-gas spring cylinders, and comprises a power transmission system 1, a hydraulic control element 2 connected with the power transmission system 1, a hydraulic execution element 3 connected with the hydraulic control element 2, an electric control system 4 and a sensing system 5 connected with the electric control system 4; the power transmission system 1 comprises a hydraulic pump 11 connected with the hydraulic control element 2 and a hydraulic oil tank 12 connected with the hydraulic pump 11; the hydraulic control unit 2 includes a control valve assembly connected to the hydraulic pump 11; the hydraulic execution element 3 comprises 6 hydro-pneumatic suspension oil cylinders symmetrically arranged along the longitudinal central axis of the vehicle, the upper moving point of the hydro-pneumatic suspension oil cylinder is connected with the frame, the bottom supporting point is connected with the tire triangular arm, the piston rod in the hydro-pneumatic suspension oil cylinder is controlled by the hydraulic control element 2 to move up and down to drive the frame to move up and down, and further the chassis is driven to move up and down, so that the height of the chassis is adjusted; the electronic control system 4 comprises a control panel 41, a display screen 42 and a central controller 43 which are in communication connection with each other; an automatic mode selection key, a manual mode selection key, a low-level function key, a middle-level function key, a high-level function key, a leveling function key, a self-defining key, a rigid locking key and a rigid locking key indicator lamp are arranged on the control panel 41; the sensing system 5 comprises a height sensor assembly connected with the hydro-pneumatic suspension cylinder and a level sensor 55 connected with the frame; the central controller 43 is used for selectively controlling the opening and closing of the control valve assembly, so that 6 hydro-pneumatic suspension cylinders selectively execute lifting movement; the height sensor assembly and the horizontal sensor 55 are used for sensing and collecting height signals and horizontal inclination angle signals of the oil-gas suspension cylinders corresponding to the height sensor assembly and the horizontal sensor respectively, the sensed and collected signals are fed back to the display screen 42 in a data form through the central controller 43, the control panel 41 is operated through judging data values to selectively adjust the oil-gas suspension cylinders to reach a calibration height, and calibration of working height positions of the oil-gas suspension is quickly and accurately completed through man-machine interaction.
Further, as shown in fig. 1, the hydraulic pump 11 is connected to the hydraulic oil tank 12 through a hydraulic oil inlet/outlet pipe 13; the hydraulic pump 11 is connected with a power takeoff interface of a gearbox and is powered by a power system of the whole vehicle; the power transmission system 1 is connected with the control valve assembly and the oil-gas suspension cylinder through a hydraulic oil inlet and outlet pipe 13; the electric control system 4 is integrated through a chassis wiring harness assembly, and wiring harness branches of the chassis wiring harness are respectively connected with the hydraulic control element 2 and the sensing system 4; the hydraulic pump 11 provides pressure for the oil liquid of the hydraulic oil tank 12 through the hydraulic oil inlet and outlet pipe 13, so that the oil liquid controls the oil inlet and outlet of the hydro-pneumatic suspension cylinder through the control valve component, the hydraulic oil pressure of the hydro-pneumatic suspension cylinder is lifted, and a piston rod in the hydro-pneumatic suspension cylinder is forced to move up and down;
a control panel 41 of the electric control system is arranged on a main driving instrument desk, a display screen 42 is arranged at a middle bulge, and the opening and closing of the hydraulic control element 2 are controlled by the central controller 43; the sensing system 4 senses and collects height signals of the oil cylinder of the oil-gas suspension and horizontal inclination angle signals of the vehicle frame, the signals are fed back to the display screen 42 in a data mode through the central controller 43, man-machine interaction is achieved, and the control panel 41 is operated through judging data values to adjust the hydraulic actuating element 3 to achieve a calibrated height.
Further, as shown in fig. 1, the control valve assembly includes a main control valve 25 connected to the hydraulic pump 11, and a first control valve 21, a second control valve 22, a third control valve 23, and a fourth control valve 24 respectively connected to the main control valve 25; an overflow valve is integrated in the main control valve 25, and the opening degree of each control valve is controlled through the overflow valve so as to control the inlet and outlet amount of hydraulic oil; the first control valve 21 and the second control valve 22 are symmetrically arranged on the left and right sides of the vehicle longitudinal center axis, and are connected to each other by a wire harness; the third control valve 23 and the fourth control valve 24 are arranged symmetrically on the left and right sides of the vehicle longitudinal center axis, and are connected to each other by a wire harness; the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 are respectively connected with the hydraulic pump 11 through a hydraulic oil inlet and outlet pipe 13;
further, as shown in fig. 1, the 6 hydro-pneumatic suspension cylinders are respectively a first hydro-pneumatic suspension cylinder 31 connected to the first control valve 21, a second hydro-pneumatic suspension cylinder 32 connected to the second control valve 22, a third hydro-pneumatic suspension cylinder 33 and a fifth hydro-pneumatic suspension cylinder 35 connected to the third control valve 23, and a fourth hydro-pneumatic suspension cylinder 34 and a sixth hydro-pneumatic suspension cylinder 36 connected to the fourth control valve 24; the first hydro-pneumatic suspension cylinder 31 and the second hydro-pneumatic suspension cylinder 32 are symmetrically arranged on the left side and the right side of the longitudinal central axis of the vehicle; the third hydro-pneumatic suspension cylinder 33 and the fourth hydro-pneumatic suspension cylinder 34 are symmetrically arranged on the left side and the right side of the longitudinal central axis of the vehicle; the fifth hydro-pneumatic suspension cylinder 35 and the sixth hydro-pneumatic suspension cylinder 36 are symmetrically arranged on the left side and the right side of the longitudinal central axis of the vehicle; the first hydro-pneumatic suspension cylinder 31 and the second hydro-pneumatic suspension cylinder 32 are positioned at the front axle of the vehicle, and the first hydro-pneumatic suspension cylinder 31 and the second hydro-pneumatic suspension cylinder 32 respectively and independently drive the chassis; the third hydro-pneumatic suspension cylinder 33 and the fourth hydro-pneumatic suspension cylinder 34 are positioned on a middle axle of the vehicle; the fifth hydro-pneumatic suspension cylinder 35 and the sixth hydro-pneumatic suspension cylinder 36 are positioned on a rear axle of the vehicle; the third hydro-pneumatic suspension cylinder 33 is communicated with the fifth hydro-pneumatic suspension cylinder 35 and synchronously drives the chassis; the fourth hydro-pneumatic suspension cylinder 34 is communicated with the sixth hydro-pneumatic suspension cylinder 36 and synchronously drives the chassis;
further, as shown in fig. 1, the control panel 41 is disposed on a main driving instrument desk of the locomotive; the display screen 42 is arranged at a bulge in the vehicle head; the central controller 43 is arranged at the middle rear part of the vehicle; the control panel 41, the display screen 42 and the central controller 43 are connected through a wire harness; the manual mode selection key can switch the hydro-pneumatic suspension system to a manual mode, and can enable a leveling function key and a user-defined key of the hydro-pneumatic suspension system to be in an effective state; so as to realize the manual adjustment of the position of the hydro-pneumatic suspension cylinder; the automatic mode selection key can enable a low-order function key, a middle-order function key, a high-order function key and a user-defined key of the oil-gas suspension system to be in an effective state; the low-order function key can enable the oil-gas suspension system to return to a low order according to finished low-order memory data; the middle function key can enable the oil gas suspension system to return to the middle position according to the finished middle memory data; the high-order function key can enable the hydro-pneumatic suspension system to return to a high order according to finished high-order memory data; the automatic mode selection key enables the rigid locking key to be invalid and cannot realize the locking function; in a non-automatic mode state, a rigid locking key is pressed, a rigid locking key indicator lamp is on, and an oil-gas suspension system is controlled to realize rigid locking of the oil-gas suspension system; pressing the rigid locking button again, turning off the rigid locking button indicator lamp, and releasing the rigid locking of the oil-gas suspension system; the leveling function key can automatically adjust the vehicle from an inclined state to a horizontal state; the user-defined key can realize the memory function of calibration data when the user-defined key is continuously pressed for more than 5 seconds for three times; the display screen 42 can display data fed back by the sensing system 5 and relief valve pressure data.
Further, as shown in FIG. 1, the sensing system 5 includes a height sensor assembly connected to the hydro-pneumatic suspension cylinder and a level sensor 55 connected to the frame; the height sensor assembly includes a first height sensor 51 connected to the first hydro-pneumatic suspension cylinder 31, a second height sensor 52 connected to the second hydro-pneumatic suspension cylinder 32, a third height sensor 53 connected to the third hydro-pneumatic suspension cylinder 33 and the fifth hydro-pneumatic suspension cylinder 35, a fourth height sensor 54 connected to the fourth hydro-pneumatic suspension cylinder 34 and the sixth hydro-pneumatic suspension cylinder 36; the first height sensor 51, the second height sensor 52, the third height sensor 53, the fourth height sensor 54, and the level sensor 55 are each connected to the central controller 43 by a wire harness; the height signal of the first hydro-pneumatic suspension cylinder 31 is sensed and collected through a first height sensor 51 and is transmitted to the central controller 43, the central controller 43 feeds the height signal back to the display screen 42 in a data form, the control panel 41 is operated through judging a data value to adjust the first hydro-pneumatic suspension cylinder 31 to reach a calibrated height, and man-machine interaction is achieved; sensing and collecting a height signal of the second hydro-pneumatic suspension cylinder 32 through a second height sensor 52 and transmitting the height signal to the central controller 43, feeding the height signal back to the display screen 42 in a data form by the central controller 43, and operating the control panel 41 through judging a data value to adjust the second hydro-pneumatic suspension cylinder 32 to reach a calibrated height; the third height sensor 53 senses and collects height signals of the third hydro-pneumatic suspension cylinder 33 and the fifth hydro-pneumatic suspension cylinder 35 and transmits the height signals to the central controller 43, the central controller 43 feeds the height signals back to the display screen 42 in a data form, and the control panel 41 is operated through judging data values to adjust the heights of the third hydro-pneumatic suspension cylinder 33 and the fifth hydro-pneumatic suspension cylinder 35 to reach a calibrated height; height signals of the fourth hydro-pneumatic suspension cylinder 34 and the sixth hydro-pneumatic suspension cylinder 36 are sensed and collected through a fourth height sensor 54 and are transmitted to the central controller 43, the central controller 43 feeds the height signals back to the display screen 42 in a data form, and the control panel 41 is operated through judging data values to adjust the heights of the fourth hydro-pneumatic suspension cylinder 34 and the sixth hydro-pneumatic suspension cylinder 36 to reach a calibrated height; the horizontal angle signal of the vehicle frame is sensed and collected by the horizontal sensor 55 and is transmitted to the central controller 43, the central controller 43 feeds the horizontal angle signal back to the display screen 42 in a data form, and the control panel 41 is operated by judging a data value to adjust the height of oil cylinders of oil-gas suspension frames on two sides of the longitudinal central axis of the vehicle so as to adjust the horizontal angle of the vehicle frame and enable the horizontal angle to reach a calibration angle.
According to the working principle of the military hydro-pneumatic suspension calibration system based on human-computer interaction, the central controller 43 is used for selectively controlling the opening and closing of 4 control valves of the hydraulic control element 2, so that 6 hydro-pneumatic suspension oil cylinders of the hydraulic actuating element 3 selectively execute lifting motion; the height signals and the horizontal inclination angle signals of the oil-gas suspension cylinders corresponding to the height sensors and the height sensors are sensed and collected through the horizontal sensor 55 and the 4 height sensors of the sensing system 4; the central controller 43 feeds signals back to the display screen 42 in a data form to realize man-machine interaction, and the control panel 41 is operated by judging data values to selectively adjust the hydro-pneumatic suspension cylinder of the hydraulic actuating element 3 to reach the calibration height, so that the calibration of the working height position of each working condition of the hydro-pneumatic suspension is quickly and accurately completed.
As shown in fig. 2-7, another aspect of the invention provides a military oil-gas suspension calibration process method based on human-computer interaction, which is implemented by the oil-gas suspension system, the military oil-gas suspension calibration process method of the invention adjusts the chassis height of a vehicle by manually adjusting the lifting of an oil cylinder of the oil-gas suspension according to the required height working condition position of the vehicle, and feeds back the height above the ground and the horizontal angle of a horizontal sensor reaction frame by using a height sensor; comparing the vehicle chassis height data through actual measurement, and inputting the obtained data in a control panel to form quantitative data memory; the calibration of the working height position of each working condition of the oil-gas suspension is correctly and quickly calibrated by an operator; the method specifically comprises the following steps:
s1: starting the oil gas suspension system to electrify and refuel the oil gas suspension system; specifically, the method comprises the steps of controlling an oil-gas suspension system to be electrified, and igniting and starting an engine; checking to confirm whether the manual valve is closed, and if not, manually closing the manual valve; lifting an oil cylinder of an oil-gas suspension system to the highest position, and filling hydraulic lifting oil to the position of a scale mark 2.5-3 of an observation window of an oil tank;
s2: exhausting a hydraulic oil inlet and outlet pipe line of the oil-gas suspension system; descending an oil cylinder of an oil-gas suspension system to the lowest position, then ascending to the highest position, repeating for 5-7 times, and emptying air in a hydraulic oil inlet and outlet oil pipe pipeline of the oil-gas suspension system;
s3: respectively carrying out low-position calibration, high-position calibration and middle-position calibration on the oil-gas suspension system, memorizing low-position calibration data, high-position calibration data and middle-position calibration data, and then verifying the memorized low-position calibration data, high-position calibration data and middle-position calibration data;
s4: selecting an automatic mode to verify the time of the oil gas suspension system from low position to middle position; specifically, in an automatic mode, a low-position function key on a control panel of the oil-gas suspension system is selected and executed, a middle-position function key on the control panel is selected and executed, meanwhile, a stopwatch is used for recording the time for switching the low-position function to the middle-position function, whether the requirement is met or not is confirmed by taking the time from the turn-off of a low-position function key lamp to the turn-on of the middle-position function key lamp as a reference, and otherwise, the flow of an overflow valve is adjusted, the verification is carried out again, and the operation and the adjustment are repeated until the requirement is met;
s5: disconnecting the power supply of a control panel of the oil-gas suspension system for 1 minute, and enabling the oil-gas suspension system to memorize calibration data and restart updating;
s6: starting a power supply of the oil-gas suspension system, switching to a manual mode, and calibrating a horizontal inclination angle; specifically, a leveling function key on a control panel is selected to carry out coarse leveling, three oil-gas suspension cylinders on one side of the longitudinal central axis of the vehicle are lifted to a high position, three oil-gas suspension cylinders on the other side of the longitudinal central axis of the vehicle are lowered to a low position, a user-defined key is continuously pressed for more than 5 seconds for three times, an oil-gas suspension system automatically calibrates and obtains leveling data, the time for completing calibration of a horizontal inclination angle is recorded, whether the requirement is met is confirmed, otherwise, the flow of an overflow valve is adjusted, and the verification is carried out again until the requirement is met;
s7: verifying and confirming the rigidity locking function, the pressure of an overflow valve and the hydraulic oil level of the oil-gas suspension system;
s8: and (5) disconnecting the power supply of the control panel of the oil-gas suspension system for 1 minute, and finishing calibration.
Step S3 further includes the steps of:
s31: selecting a manual mode to perform low-position calibration on the oil-gas suspension system; specifically, a manual mode is selected, all hydro-pneumatic suspension oil cylinders of the hydro-pneumatic suspension system are lowered to the lowest position, the distances between the lower cross beams of the front axle and the rear axle and the ground are measured, whether the distances meet requirements or not is checked, if the distances do not meet the requirements, the hydro-pneumatic suspension oil cylinders needing to be adjusted are selected to adjust the height positions of the hydro-pneumatic suspension oil cylinders in a inching mode, the distances between the lower cross beams of the front axle and the rear axle and the ground are measured again, the hydro-pneumatic suspension oil cylinders are continuously adjusted repeatedly until the distances meet the requirements, a user-defined key is pressed for more than 5 seconds for three times continuously, and low-position calibration data of the hydro-pneumatic suspension system are memorized;
s32: selecting a manual mode to perform high-position calibration on the oil-gas suspension system; specifically, a manual mode is selected, all hydro-pneumatic suspension oil cylinders of the hydro-pneumatic suspension system are lifted to the highest position, the distances between the lower cross beams of the front axle and the rear axle and the ground are measured, whether the requirements are met is checked, if the requirements are not met, the hydro-pneumatic suspension oil cylinders needing to be adjusted are selected to adjust the height positions of the hydro-pneumatic suspension oil cylinders in a inching mode, the distances between the lower cross beams of the front axle and the rear axle and the ground are measured again, the hydro-pneumatic suspension oil cylinders are adjusted repeatedly until the requirements are met, a user-defined key is continuously pressed for more than 5 seconds for three times, and high calibration data of the hydro-pneumatic suspension system are memorized;
s33: selecting a manual mode to perform neutral calibration on the oil-gas suspension system; specifically, a manual mode is selected, all oil cylinders of the oil-gas suspension system are lowered to a middle position, the distances between the lower cross beams of the front axle and the rear axle and the ground are measured, whether the requirements are met is checked, if the requirements are not met, the oil cylinders of the oil-gas suspension system needing to be adjusted are selected to adjust the height positions of the oil cylinders of the oil-gas suspension system in a inching mode, the distances between the lower cross beams of the front axle and the rear axle and the ground are measured again, the adjustment is continuously repeated until the requirements are met, a user-defined key is continuously pressed for more than 5 seconds for three times, and middle position calibration data of the oil-gas suspension system are memorized;
s34: selecting an automatic mode, and sequentially verifying the high-order calibration data of the hydro-pneumatic suspension system obtained in the step S32, the middle-order calibration data of the hydro-pneumatic suspension system obtained in the step S33 and the low-order calibration data of the hydro-pneumatic suspension system obtained in the step S31; specifically, a high-order function key, a middle-order function key and a low-order function key which are used for memorizing data are sequentially selected and commands are executed, distances between a front axle lower beam and a rear axle lower beam and the ground when the oil-gas suspension system is at a high order, a middle order and a low order are respectively measured, whether the distances meet requirements is checked, if any one of the distances does not meet the requirements, corresponding calibration items in the steps S31-S33 are selected for recalibration, recalibration data are memorized, and then recalibration data memorized in the step S34 are repeated for verification until the calibration data meet the requirements;
step S7 further includes the steps of:
s71: selecting an automatic mode to verify the rigidity locking function of the oil-gas suspension system; in the automatic mode, pressing the rigid locking key is ineffective, and the locking function cannot be realized; in other states, a rigid locking key is pressed, a key working indicator lamp is on, and the control system realizes rigid locking of the oil-gas suspension system; pressing the rigid latching key again, turning off the key working indicator lamp, releasing the rigid latching of the oil-gas suspension system, and otherwise, carrying out fault troubleshooting;
s72: pressure verification of an overflow valve, namely adjusting all hydro-pneumatic suspension cylinders of a hydro-pneumatic suspension system to a middle position or a high position, reading pressure data of the overflow valve in a multifunctional display screen, confirming whether the pressure data meet the requirements, and performing troubleshooting if the pressure data do not meet the requirements;
s73: and finally verifying the hydraulic oil level, observing a liquid level indicator of the hydraulic oil tank, reading the liquid level of an observation window of the liquid level indicator by 2.5-3 when the oil-gas suspension is at a high position, and otherwise, filling the hydraulic oil to the required range.
The invention provides a working principle of a military oil-gas suspension calibration process method based on human-computer interaction, which comprises the following steps: sequentially electrifying and oiling an oil-gas suspension system, exhausting a pipeline of the oil-gas suspension system, respectively carrying out low-position calibration, high-position calibration and middle-position calibration on the oil-gas suspension system, memorizing low-position calibration data, high-position calibration data and middle-position calibration data, and then verifying the memorized low-position calibration data, high-position calibration data and middle-position calibration data until the requirements are met; selecting an automatic mode to verify the time from the low position to the middle position; disconnecting the power supply of a control panel of the oil-gas suspension system for 1 minute, and enabling the oil-gas suspension system to memorize calibration data and restart updating; then starting a power supply of the oil-gas suspension system, switching to a manual mode, and calibrating a horizontal inclination angle; then verifying and confirming the rigidity locking function, the pressure of an overflow valve and the hydraulic oil level of the oil-gas suspension system; finally, disconnecting the power supply of the control panel of the oil-gas suspension system for 1 minute to finish calibration; according to the height working condition position required by the vehicle, the lifting of the oil cylinder of the oil-gas suspension is manually adjusted, so that the chassis height of the vehicle is adjusted, and the ground clearance is fed back by using a height sensor and a horizontal sensor; comparing the vehicle chassis height data through actual measurement, and inputting the obtained data in a control panel system to form quantitative data memory; the calibration of the working height position of each working condition of the oil-gas suspension is correctly and quickly calibrated by an operator; the military oil-gas suspension calibration process method based on human-computer interaction forms a set of standard military oil-gas suspension height calibration process operation, standardizes the calibration flow, reduces the operation difficulty, improves the calibration consistency, ensures the ground clearance requirement of the oil-gas suspension, has good calibration quality consistency, is in standard operation, and can quickly identify and dispose the abnormal condition in a single step; the technical problem of oil gas suspension calibration in the prior art can be solved.
It will be understood by those skilled in the art that the foregoing is only an exemplary embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, since various modifications, substitutions and improvements within the spirit and scope of the invention are possible and within the scope of the appended claims.

Claims (10)

1. A military oil-gas suspension calibration system based on human-computer interaction is characterized by comprising a power transmission system (1), a hydraulic control element (2) connected with the power transmission system (1), a hydraulic execution element (3) connected with the hydraulic control element (2), an electric control system (4) and a sensing system (5) connected with the electric control system (4); wherein,
the power transmission system (1) comprises a hydraulic pump (11) connected with the hydraulic control element (2) and a hydraulic oil tank (12) connected with the hydraulic pump (11); the hydraulic control element (2) comprises control valve components which are connected with the hydraulic pump (11) and are symmetrically arranged on two sides of the longitudinal central axis of the vehicle; the hydraulic execution element (3) comprises 6 oil-gas suspension oil cylinders symmetrically arranged along the two sides of the longitudinal central axis of the vehicle, the upper moving point of each oil-gas suspension oil cylinder is connected with the frame, the bottom supporting point is connected with the tire triangular arm, and the hydraulic control element (2) controls the piston rod in each oil-gas suspension oil cylinder to move up and down to drive the frame to move up and down so as to drive the chassis to move up and down and realize the adjustment of the height of the chassis; the electronic control system (4) comprises a control panel (41), a display screen (42) and a central controller (43) which are in communication connection with each other; the sensing system (5) comprises a height sensor assembly connected with the hydro-pneumatic suspension cylinder and a level sensor (55) connected with the frame; the central controller (43) is used for selectively controlling the opening and closing of the control valve assembly, so that 6 hydro-pneumatic suspension oil cylinders selectively execute lifting motion; the height sensor assembly and the horizontal sensor (55) are used for sensing and collecting height signals and vehicle frame horizontal inclination angle signals of oil cylinders of the oil-gas suspension corresponding to the height sensor assembly and the horizontal sensor, the sensed and collected signals are fed back to the display screen (42) in a data form through the central controller (43), the control panel (41) is operated through judging data values to selectively adjust the oil cylinders of the oil-gas suspension, so that the oil cylinders of the oil-gas suspension reach a calibration height, and the calibration of the working height position of each working condition of the oil-gas suspension is quickly and accurately completed through man-machine interaction.
2. The human-computer interaction based military oil and gas suspension calibration system of claim 1, wherein: an automatic mode selection key, a manual mode selection key, a low-level function key, a middle-level function key, a high-level function key, a leveling function key, a self-defining key, a rigid locking key and a rigid locking key indicator lamp are arranged on the control panel (41);
the manual mode selection key can switch the hydro-pneumatic suspension system to a manual mode, and can enable a leveling function key and a user-defined key of the hydro-pneumatic suspension system to be in an effective state; so as to realize the manual adjustment of the position of the hydro-pneumatic suspension cylinder;
the automatic mode selection key can enable a low-order function key, a middle-order function key, a high-order function key and a user-defined key of the oil-gas suspension system to be in effective states;
the low-order function key can enable the oil-gas suspension system to return to a low order according to finished low-order memory data; the middle functional key can enable the hydro-pneumatic suspension system to return to the middle position according to the finished middle position memory data; the high-order function key can enable the oil-gas suspension system to return to a high order according to finished high-order memory data;
the automatic mode selection key can enable the rigid locking key to be invalid and cannot realize the locking function; in a non-automatic mode state, a rigid locking key is pressed, a rigid locking key indicator lamp is on, and an oil-gas suspension system is controlled to realize rigid locking of the oil-gas suspension system; pressing the rigid locking button again, turning off the rigid locking button indicator lamp, and releasing the rigid locking of the oil-gas suspension system;
the leveling function key can automatically adjust the vehicle from an inclined state to a horizontal state;
the user-defined key can realize the memory function of calibration data when the user-defined key is continuously pressed for more than 5 seconds for three times;
the display screen (42) can display data fed back by the sensing system (5) and overflow valve pressure data.
3. The military oil-gas suspension calibration system based on human-computer interaction of claim 1, wherein: the control valve assembly comprises a main control valve (25) respectively connected with the hydraulic pump (11), a first control valve (21), a second control valve (22), a third control valve (23) and a fourth control valve (24) respectively connected with the main control valve (25); an overflow valve is integrated in the main control valve (25);
the 6 oil-gas suspension oil cylinders are respectively a first oil-gas suspension oil cylinder (31) connected with the first control valve (21), a second oil-gas suspension oil cylinder (32) connected with the second control valve (22), a third oil-gas suspension oil cylinder (33) and a fifth oil-gas suspension oil cylinder (35) connected with the third control valve (23), and a fourth oil-gas suspension oil cylinder (34) and a sixth oil-gas suspension oil cylinder (36) connected with the fourth control valve (24); the first hydro-pneumatic suspension cylinder (31) and the second hydro-pneumatic suspension cylinder (32) are symmetrically arranged on the left side and the right side of the longitudinal central axis of the vehicle; the third hydro-pneumatic suspension cylinder (33) and the fourth hydro-pneumatic suspension cylinder (34) are symmetrically arranged on the left side and the right side of the longitudinal central axis of the vehicle; the fifth hydro-pneumatic suspension cylinder (35) and the sixth hydro-pneumatic suspension cylinder (36) are symmetrically arranged on the left side and the right side of the longitudinal central axis of the vehicle; the first hydro-pneumatic suspension cylinder (31) and the second hydro-pneumatic suspension cylinder (32) are positioned at a front axle of a vehicle, and the first hydro-pneumatic suspension cylinder (31) and the second hydro-pneumatic suspension cylinder (32) respectively and independently drive a chassis; the third hydro-pneumatic suspension cylinder (33) and the fourth hydro-pneumatic suspension cylinder (34) are positioned on a middle axle of the vehicle; the fifth hydro-pneumatic suspension oil cylinder (35) and the sixth hydro-pneumatic suspension oil cylinder (36) are positioned on a rear axle of the vehicle; the third hydro-pneumatic suspension oil cylinder (33) is communicated with the fifth hydro-pneumatic suspension oil cylinder (35) and synchronously drives the chassis; the fourth hydro-pneumatic suspension oil cylinder (34) is communicated with the sixth hydro-pneumatic suspension oil cylinder (36) and synchronously drives the chassis;
the height sensor assembly comprises a first height sensor (51) connected with the first hydro-pneumatic suspension cylinder (31), a second height sensor (52) connected with the second hydro-pneumatic suspension cylinder (32), a third height sensor (53) connected with the third hydro-pneumatic suspension cylinder (33) and the fifth hydro-pneumatic suspension cylinder (35), a fourth height sensor (54) connected with the fourth hydro-pneumatic suspension cylinder (34) and the sixth hydro-pneumatic suspension cylinder (36), and a level sensor (55) connected with a vehicle frame.
4. A military oil-gas suspension calibration process method based on human-computer interaction is characterized by being realized by applying the military oil-gas suspension calibration system based on human-computer interaction as claimed in any one of claims 1-3, and comprising the following steps:
s1: starting an oil-gas suspension system to electrify and refuel the oil-gas suspension system, checking and confirming that a manual valve is in a closed state, lifting an oil-gas suspension cylinder of the oil-gas suspension system to the highest position, and filling hydraulic lifting oil to the position of a scale mark 2.5-3 of an observation window of an oil tank;
s2: exhausting the hydraulic oil inlet and outlet pipe line of the hydro-pneumatic suspension system, descending all hydro-pneumatic suspension cylinders of the hydro-pneumatic suspension system to the lowest position, then ascending to the highest position, repeating for 5-7 times, and exhausting air in the hydraulic oil inlet and outlet pipe line of the hydro-pneumatic suspension system;
s3: respectively carrying out low-position calibration, high-position calibration and middle-position calibration on the oil-gas suspension system, memorizing low-position calibration data, high-position calibration data and middle-position calibration data, and then verifying the memorized low-position calibration data, high-position calibration data and middle-position calibration data until the requirements are met;
s4: selecting an automatic mode to verify the time of the oil gas suspension system from low position to middle position;
s5: disconnecting the power supply of a control panel of the oil-gas suspension system for 1 minute, and enabling the oil-gas suspension system to memorize calibration data and restart updating;
s6: starting a power supply of the hydro-pneumatic suspension system, switching to a manual mode, and calibrating a horizontal inclination angle;
s7: verifying and confirming the rigidity locking function, the pressure of an overflow valve and the hydraulic oil level of the oil-gas suspension system;
s8: and (5) disconnecting the power supply of the control panel of the oil-gas suspension system for 1 minute, and finishing calibration.
5. The military oil-gas suspension calibration process method based on human-computer interaction of claim 4, wherein the step S3 further comprises the following steps
S31, performing low-position calibration on the oil gas suspension system, selecting a manual mode, lowering all oil gas suspension cylinders of the oil gas suspension system to the lowest position, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground, checking whether the distances meet the requirements, if not, selecting the oil gas suspension cylinders needing to be adjusted to inching and adjust the high and low positions of the oil gas suspension cylinders, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground again, continuously repeating the adjustment until the distances meet the requirements, continuously pressing a user-defined button for more than 5 seconds for three times, and memorizing the low-position calibration data of the oil gas suspension system;
s32, performing high-order calibration on the hydro-pneumatic suspension system, selecting a manual mode, lifting all hydro-pneumatic suspension oil cylinders of the hydro-pneumatic suspension system to the highest position, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground, checking whether the distances meet the requirements, if not, selecting the hydro-pneumatic suspension oil cylinders needing to be adjusted to inching and adjust the high and low positions of the hydro-pneumatic suspension oil cylinders, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground again, continuously repeating the adjustment until the distances meet the requirements, continuously pressing the user-defined key for more than 5 seconds for three times, and memorizing high-order calibration data of the hydro-pneumatic suspension system;
s33, performing middle position calibration on the hydro-pneumatic suspension system, selecting a manual mode, lowering all hydro-pneumatic suspension oil cylinders of the hydro-pneumatic suspension system to a middle position, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground, checking whether the distances meet the requirements, if not, selecting the hydro-pneumatic suspension oil cylinders needing to be adjusted to inching and adjust the height positions of the hydro-pneumatic suspension oil cylinders, measuring the distances between the lower cross beams of the front axle and the rear axle and the ground again, continuously repeating the adjustment until the distances meet the requirements, continuously pressing the user-defined key for more than 5 seconds for three times, and memorizing middle position calibration data of the hydro-pneumatic suspension system.
S34: selecting an automatic mode, and sequentially verifying the high-order calibration data of the hydro-pneumatic suspension system obtained in the step S32, the middle-order calibration data of the hydro-pneumatic suspension system obtained in the step S33 and the low-order calibration data of the hydro-pneumatic suspension system obtained in the step S31; respectively and sequentially selecting a high-order function key, a middle-order function key and a low-order function key which finish memorizing data and executing commands, respectively measuring the distances between the lower cross beams of the front axle and the rear axle and the ground when the oil-gas suspension system is at a high order, a middle order and a low order, checking whether the distances meet the requirements, if any one of the distances does not meet the requirements, selecting corresponding calibration items in the steps S31-S33 to recalibrate, memorizing recalibration data, and then repeating the step S34 to verify the memorized recalibration data until the calibration data meet the requirements.
6. The human-computer interaction based military oil and gas suspension calibration process method of claim 5, wherein the step S4 further comprises: in an automatic mode, a low-position function key of the hydro-pneumatic suspension system is selected and executed, a middle-position function key is selected to start execution, a stopwatch is used for recording the time for switching the low-position function to the middle-position function, the time for switching the low-position function to the middle-position function is taken as a reference, whether the requirement is met or not is confirmed, otherwise, the flow of an overflow valve is adjusted, verification is carried out again, and operation adjustment is carried out repeatedly until the requirement is met.
7. The military oil-gas suspension calibration process method based on human-computer interaction of claim 6, wherein the step S6 further comprises: selecting a leveling function key on a control panel, lifting three hydro-pneumatic suspension cylinders on one side of a longitudinal central axis of the vehicle to a high position, lowering the three hydro-pneumatic suspension cylinders on the other side of the longitudinal central axis of the vehicle to a low position, continuously pressing a user-defined key for more than 5 seconds for three times, automatically calibrating and acquiring leveling data by a hydro-pneumatic suspension system, recording the time for completing calibration of a horizontal inclination angle, confirming whether the requirement is met, otherwise, adjusting the flow of an overflow valve, and verifying again until the requirement is met.
8. The human-computer interaction-based military oil-gas suspension calibration process method of claim 7, wherein the verification of the rigidity locking function of the step S7 comprises the following steps: selecting an automatic mode to verify the rigidity locking function of the oil-gas suspension system; in the automatic mode, the rigid locking key is not effective when being pressed, and the locking function cannot be realized; in other states, a rigid locking key is pressed, a key working indicator lamp is on, and the control system realizes rigid locking of the oil-gas suspension system; and pressing a rigid locking key, turning off a key working indicator lamp, and removing the rigid locking of the oil-gas suspension system, otherwise, carrying out fault troubleshooting.
9. The military oil-gas suspension calibration process method based on human-computer interaction of claim 8, wherein the relief valve pressure verification of step S7 comprises: all hydro-pneumatic suspension oil cylinders of the hydro-pneumatic suspension system are adjusted to a middle position or a high position state, pressure data of an overflow valve is read in a display screen, whether the pressure data meet requirements or not is confirmed, and troubleshooting is carried out if the pressure data do not meet the requirements.
10. The human-computer interaction-based military oil-gas suspension calibration process method of claim 9, wherein the final verification of the hydraulic oil level of the step S7 comprises: and observing a liquid level indicator of a hydraulic oil tank, wherein when the oil cylinder of the oil-gas suspension is at a high position, the liquid level of an observation window of the liquid level indicator reads 2.5-3, otherwise, the hydraulic oil is filled to the required range.
CN202210684104.3A 2022-06-16 2022-06-16 Military oil gas suspension calibration system and method based on man-machine interaction Active CN114987133B (en)

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