CN203093670U - Passenger car pneumatic suspension control system - Google Patents
Passenger car pneumatic suspension control system Download PDFInfo
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- CN203093670U CN203093670U CN 201320043564 CN201320043564U CN203093670U CN 203093670 U CN203093670 U CN 203093670U CN 201320043564 CN201320043564 CN 201320043564 CN 201320043564 U CN201320043564 U CN 201320043564U CN 203093670 U CN203093670 U CN 203093670U
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Abstract
The utility model discloses a passenger car pneumatic suspension control system which comprises a height sensor, a speed sensor, a pressure sensor, an air inflating path, an electromagnetic valve group, a displaying and setting module and a master controller. The air inflating path is used for opening or closing an airbag. The electromagnetic valve group is used for opening or closing an air discharge path of the airbag. The displaying and setting module is used for setting suspension system parameters and selecting working modes. The master controller is used for receiving height information of a car body, speed information, pressure information of an air storage tank, suspension system parameter information and working mode information, and controlling opening and/or closing of the electromagnetic valve group according to the information. Through utilization of various types of sensors, the passenger car pneumatic suspension control system can carry out monitoring on relevant parameters of the passenger car, achieves a high-level mode, a middle-level mode, a low-level mode, a lateral-kneeling mode, and a high-speed altitude mode, has the functions of chassis stabilization, fault inquiry, parameter on-line proving and the like, can be suitable for the requirements of different road conditions and the speed, improves stability and comfort of the passenger car, and ensures perfect maneuverability of the passenger car.
Description
Technical Field
The utility model relates to a vehicle engineering technical field, in particular to air suspension's electronic control system for passenger train.
Background
The suspension is one of the important parts of the vehicle, and is elastically connected with the vehicle body and the vehicle axle, so as to buffer the impact force transmitted to the vehicle frame or the vehicle body from the uneven road surface when the vehicle runs and damp the vibration caused by the impact force, thereby ensuring that the vehicle can run smoothly.
The passive suspension is a mechanical system mainly composed of a steel plate spring or a spiral spring and a shock absorber, and the characteristics of all elements in the passive suspension cannot be adjusted, so that the passive suspension can only passively absorb energy and alleviate impact. The traditional passive suspension has fixed suspension stiffness and suspension damping, and the design starting point is the compromise between the smoothness and the operating stability of the automobile, but the contradiction requirement between the smoothness and the operating stability cannot be met. In the passive suspension, the use of a coil spring having a relatively high rigidity makes it possible to improve the grip of the tire by maintaining the tendency of the wheel to contact the road surface, but this brings about a problem that a strong feeling of bump is given to a person when riding an automobile; if a softer spiral spring is adopted, the automobile steering device can adapt to rugged and uneven road surfaces and improve the smoothness and comfort of the automobile, but the automobile steering performance is poor.
Along with the improvement of the requirement of people on the riding comfort of the vehicle and the development of the passenger car suspension technology, the air suspension is increasingly widely applied to the passenger car. The development of air suspensions enables both vehicle ride comfort and handling stability to be achieved, and therefore they have begun to gradually replace passive suspensions.
The traditional control mode of the air suspension is to adopt a mechanical altitude valve, and the air suspension air bag is inflated and deflated through the opening and the adjustment of the altitude valve, so that the constant running altitude of the vehicle is maintained. However, the mechanical altitude valve has a simple control method, a large operation error and a single function mode, and cannot well meet the requirements of the whole vehicle such as the operation stability, the riding comfort, the fuel economy and the riding convenience.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an electronic control system of air suspension for passenger train to according to the change of vehicle running condition perception vehicle state, and then the inflation and deflation of control air bag in the air suspension is in order to change the automobile body height for the car is gone smoothly, also improves the operating stability, the riding comfort, the fuel economy nature and the convenience of riding of whole car simultaneously.
The technical scheme of the utility model is realized like this:
a passenger vehicle air suspension control system comprising:
the height sensor is arranged on a frame of the passenger car and used for acquiring the height information of the body of the passenger car;
the speed sensor is arranged on an output shaft of a gearbox of the passenger car and used for acquiring speed information of the passenger car;
the pressure sensor is arranged on an air storage tank of the passenger car and used for acquiring pressure information of the air storage tank;
the electromagnetic valve group is arranged on an inflation gas circuit and a deflation gas circuit of an air bag in the air suspension of the passenger car, and is used for opening or closing the inflation gas circuit of the air bag and opening or closing the deflation gas circuit of the air bag;
the display and setting module is arranged on an instrument desk of the passenger car, is used for feeding back the height information of the passenger car body, the speed information and the pressure information of the air storage tank, and is used for setting suspension system parameters and selecting a working mode; and the number of the first and second groups,
and the main controller is connected with the height sensor, the speed sensor, the pressure sensor, the electromagnetic valve group and the display and setting module through data cables, is used for respectively receiving the height information of the vehicle body, the speed information and the pressure information of the gas storage tank from the height sensor, the speed sensor and the pressure sensor and sending the height information of the vehicle body, the speed information and the pressure information of the gas storage tank to the display and setting module, acquires the parameter information and the working mode information of the suspension system from the display and setting module, and controls the opening and/or closing of the electromagnetic valve group according to the height information of the vehicle body, the speed information, the pressure information of the gas storage tank and the parameter information and the.
Further:
the height sensor comprises an angle sensor, a sensor valve core and a sensor shell; wherein,
a rotating shaft of the angle sensor is connected with a valve core of the sensor, and the height information of the vehicle body is obtained by converting the change of the measured angle into the change of the height;
the angle sensor and the sensor valve core are fixed in the sensor shell.
Furthermore, the number of the height sensors is 3, the height sensors are respectively arranged on a front axle vehicle door side frame, a rear axle left side frame and a right side frame of the passenger car, and the height sensors are connected with the vehicle axle through a transverse swing rod and a vertical swing rod.
Further, the solenoid valve block includes:
the first double-electric control electromagnetic valve is used for opening or closing the inflation gas circuits of the airbags on the two sides in the front axle air suspension of the passenger car and opening or closing the deflation gas circuits of the airbags on the two sides in the front axle air suspension, and is arranged on the inflation gas circuits and the deflation gas circuits of the airbags on the two sides in the front axle air suspension;
the second double-electric control electromagnetic valve is used for opening or closing the inflation gas circuit of the right airbag in the rear axle air suspension of the passenger car and opening or closing the deflation gas circuit of the right airbag in the rear axle air suspension, and is arranged on the inflation gas circuit and the deflation gas circuit of the right airbag in the rear axle air suspension;
the third dual-electric control electromagnetic valve is used for opening or closing an inflation gas circuit of the left airbag in the rear axle air suspension, and opening or closing a deflation gas circuit of the left airbag in the rear axle air suspension, and is arranged on the inflation gas circuit and the deflation gas circuit of the left airbag in the rear axle air suspension;
the two-position two-way electromagnetic valve is used for opening or closing an inflation air path and a deflation air path of the air bag positioned on the opposite side of the vehicle door in the front axle air suspension, and the inflation air path and the deflation air path of the air bag positioned on the opposite side of the vehicle door in the front axle air suspension.
Further, the first dual electric control electromagnetic valve, the second dual electric control electromagnetic valve and the third dual electric control electromagnetic valve are all split type stainless steel electromagnetic valves.
Further, the split type stainless steel electromagnetic valve comprises an air inlet valve and an air outlet valve; the air inlet valve is arranged in an inflation air path of the air storage tank for inflating the air bag; the air outlet valve is arranged on the air discharging path of the air bag.
Further, the two-position two-way electromagnetic valve is a normally open electromagnetic valve.
Further, the display and setting module includes:
the second CAN bus transceiving module is electrically connected with the main controller and is used for carrying out information interaction with the main controller;
the second control module is used for receiving the vehicle height information, the speed information and the pressure information of the air storage tank from the main controller through the second CAN bus transceiver module and sending suspension system parameter information and working mode information to the main controller through the second CAN bus transceiver module;
the liquid crystal display module is used for receiving and displaying the vehicle height information, the speed information and the pressure information of the air storage tank from the second control module;
a setting panel for setting suspension system parameters and selecting a working mode, and sending the set suspension system parameter information and the selected working mode information to the second control module; and the number of the first and second groups,
and the second power supply module is used for supplying power to the second control module, the liquid crystal display module and the setting panel.
Further, the main controller includes:
the first CAN bus transceiving module is electrically connected with the display and setting module and is used for carrying out information interaction with the display and setting module;
the first CAN bus transceiver module is used for respectively receiving the height information of the vehicle body, the speed information and the pressure information of the air storage tank from the height sensor, the speed sensor and the pressure sensor and sending the height information of the vehicle body, the speed information and the pressure information of the air storage tank to the display and setting module through the first CAN bus transceiver module, a first control module which acquires the suspension system parameter information and the working mode information from the display and setting module through the first CAN bus transceiver module, sends a control signal to the solenoid valve group according to the vehicle height information, the speed information, the pressure information of the air storage tank, the suspension system parameter information and the working mode information so as to control the opening and/or closing of the solenoid valve group, is connected with the height sensor, the speed sensor, the pressure sensor and the electromagnetic valve group through data cables, the first CAN bus transceiver module is electrically connected with the display and setting module;
the power amplification module is used for amplifying the control signal and is electrically connected between the first control module and the electromagnetic valve group; and the number of the first and second groups,
and the first power supply module is used for supplying power to the first control module, the power amplification module and the height sensor.
According to the above scheme, the utility model discloses a passenger train air suspension control system utilizes height sensor, relevant parameter when speedtransmitter and pressure sensor travel to the car is monitored, can fill the gassing to passenger train air suspension gasbag through opening and/or closing the operation of each solenoid valve in the electromagnetism valves according to the control condition, and then realize the automatically regulated to passenger train automobile body height, high-order mode has been realized, the meso position mode, the low level mode, the mode of kneeling on the side, high-speed high-order mode, the chassis is stable, the trouble inquiry, functions such as parameter online calibration, with the requirement that adapts to different road surface situations and adaptation speed of a motor vehicle, also guarantee the perfect maneuverability of car when improving passenger train's stationarity and travelling comfort.
And simultaneously, the utility model discloses in have install in the two-position two way solenoid valve that lies in the inflation gas circuit and the gassing gas circuit of door one side gasbag in the front axle air suspension, "the side kneeling" of passenger train can be realized through the on-off operation of this two-position two way solenoid valve for passenger train door part inclines to ground, and then makes the door footboard be close to ground, realizes that old man, children and the personage who gets off the bus and get in the bus and have the trouble can relax getting on or off.
The operations and the feedback of the height information of the vehicle body, the speed information and the pressure information of the air storage tank can be realized through the display and setting module.
Additionally, the utility model discloses a solenoid valve replaces traditional mechanical altitude valve, and very big reduction fills the error of gassing operation, cooperation main control unit's real time control, fine satisfied the passenger train operating stability, take the requirement in aspects such as travelling comfort, fuel economy and convenience by bus.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of a passenger car air suspension control system of the present invention;
fig. 2 is a schematic structural diagram of a main controller of a first embodiment of the passenger car air suspension control system of the present invention;
FIG. 3 is a schematic circuit structure of a first embodiment of the passenger car air suspension control system of the present invention;
FIG. 4 is a gas circuit diagram of a first embodiment of the passenger car air suspension control system of the present invention;
FIG. 5 is a schematic structural view of a second embodiment of the passenger car air suspension control system of the present invention;
FIG. 6 is a schematic structural diagram of a display and setting module in a second embodiment of the passenger car air suspension control system of the present invention;
fig. 7 is a schematic structural diagram of a main controller in a second embodiment of the passenger car air suspension control system of the present invention;
fig. 8 is a schematic circuit structure diagram of a second embodiment of the passenger car air suspension control system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
As shown in FIG. 1, the utility model discloses a passenger train air suspension control system mainly includes main control unit 1, height sensor 2, speed sensor 3, pressure sensor 4 and electromagnetism valves. The height sensor 2 is arranged on a frame of a passenger car and used for acquiring height information of the passenger car body; the speed sensor 3 is arranged on an output shaft of a gearbox of a passenger car and used for acquiring speed information of the passenger car; the pressure sensor 4 is arranged on a gas storage tank 7 of the passenger car and used for acquiring pressure information of the gas storage tank 7; the electromagnetic valve is assembled in an inflation gas circuit and a deflation gas circuit of an air bag 8 in the air suspension of the passenger car, and is used for opening or closing the inflation gas circuit of the air bag 8 and opening or closing the deflation gas circuit of the air bag 8; the main controller 1 is connected with the height sensor 2, the speed sensor 3, the pressure sensor 4 and the electromagnetic valve group through a data cable 9, and is used for receiving the height information, the speed information and the pressure information of the air storage tank 7 from the height sensor 2, the speed sensor 3 and the pressure sensor 4 respectively, and controlling the opening and/or closing of the electromagnetic valve group according to the height information, the speed information and the pressure information of the air storage tank 7.
As shown in fig. 2, the main controller 1 includes a first control module 101, a power amplification module 102, and a first power supply module 103. The first control module 101 is connected with the height sensor 2, the speed sensor 3, the pressure sensor 4 and the solenoid valve group through a data cable 9, and the first control module 101 is used for receiving vehicle height information monitored by the height sensor 2, speed information monitored by the speed sensor 3 and pressure information of the air storage tank 7 monitored by the pressure sensor 4, and sending a control signal to the solenoid valve group according to the vehicle height information, the speed information and the pressure information of the air storage tank 7 so as to control the opening and/or closing of the solenoid valve group; the power amplification module 102 is electrically connected between the first control module 101 and the solenoid valve set, and is configured to amplify the control signal; the first power module 103 is used for supplying power to the first control module 101, the power amplification module 102 and the height sensor 2.
As a specific embodiment, the first control module 101 may employ a MC9S12XDG128MAL chip of freescale, and the main control chip may analyze and calculate signals according to a built-in software program and send control signals to the execution mechanism; the first power module 103 may employ a LM2576HV S-5.0 chip and a HYM2576HVS-ADJ chip, wherein the LM2576HV S-5.0 chip provides 5V to the first control module 101, and the HYM2576HVS-ADJ provides 17V to the height sensor 2; the power amplification module 102 may employ a BTS707 chip, which receives the signal sent by the first control module 101 and amplifies the signal to control the opening of each solenoid valve in the solenoid valve set. The circuit structure is shown in fig. 3.
In the present invention, as shown in fig. 3, the height sensor 2 includes an angle sensor 201, a sensor spool 202, and a sensor housing 203; a rotating shaft of the angle sensor 201 is connected with the sensor valve core 202, and the height information of the vehicle body is obtained by converting the change of the measured angle into the change of the height; the angle sensor 201 and the sensor spool 202 are fixed in the sensor housing 203. The number of the height sensors 2 is 3, the height sensors are respectively arranged on a front axle door side frame, a rear axle left side frame and a right side frame of the passenger car, and the height sensors 2 are connected with the axle through a transverse swing rod and a vertical swing rod.
The utility model discloses in, speedtransmitter 3 can with the speedtransmitter sharing on the passenger train, this speedtransmitter 3 is installed on the gearbox output shaft.
Referring to fig. 1, 2, 3 and 4, the solenoid valve group includes 3 dual solenoid valves, which are a first dual solenoid valve 502, a second dual solenoid valve 503 and a third dual solenoid valve 504, and 1 two-position two-way solenoid valve 501. The first double-electric control electromagnetic valve 502 is arranged on an inflation gas circuit and a deflation gas circuit of the airbags 8 at two sides in the front axle air suspension of the passenger car, and the first double-electric control electromagnetic valve 502 is used for opening or closing the inflation gas circuit of the airbags 8 at two sides in the front axle air suspension and opening or closing the deflation gas circuit of the airbags 8 at two sides in the front axle air suspension; the second dual electric control electromagnetic valve 503 is installed in an inflation gas path and a deflation gas path of the right side air bag 8 in the rear axle air suspension of the passenger car, and the second dual electric control electromagnetic valve 503 is used for opening or closing the inflation gas path of the right side air bag 8 in the rear axle air suspension and opening or closing the deflation gas path of the right side air bag 8 in the rear axle air suspension; a third dual-electric-control electromagnetic valve 504 is arranged on an inflation gas circuit and a deflation gas circuit of the left airbag 8 in the rear axle air suspension of the passenger car, and the third dual-electric-control electromagnetic valve 504 is used for opening or closing the inflation gas circuit of the left airbag 8 in the rear axle air suspension and opening or closing the deflation gas circuit of the left airbag 8 in the rear axle air suspension; the two-position two-way electromagnetic valve 501 is installed in an inflation gas path and a deflation gas path of an airbag on the opposite side (left side or right side) of the vehicle door in the front axle air suspension, and the two-position two-way electromagnetic valve 501 is used for opening or closing the inflation gas path and the deflation gas path of an airbag 8 on the opposite side of the vehicle door in the front axle air suspension.
Among the above electromagnetic valves, the first dual electric control electromagnetic valve 502, the second dual electric control electromagnetic valve 503 and the third dual electric control electromagnetic valve 504 are all split stainless steel electromagnetic valves, and have high reliability and good high and low temperature resistance. The split stainless steel electromagnetic valve comprises an air inlet valve and an air outlet valve; the air inlet valve is arranged in an inflation air path for inflating the air bag 8 by the air storage tank 7; the air outlet valve is arranged on the air outlet path of the air bag 8.
Specifically, the first dual electrically controlled solenoid valve 502 includes a first inlet valve 502A and a first outlet valve 502B; the first air inlet valve 502A is installed in the inflation air channels of the airbags 8 on the two sides in the front axle air suspension of the passenger car, and the first air inlet valve 502A is used for opening or closing the inflation air channels of the airbags 8 on the two sides in the front axle air suspension; the first air outlet valve 502B is installed in the air outlet paths of the air bags 8 on the two sides in the front axle air suspension of the passenger car, and the first air outlet valve 502B is used for opening or closing the air outlet paths of the air bags 8 on the two sides in the front axle air suspension.
The second dual electrically controlled solenoid valve 503 comprises a second inlet valve 503A and a second outlet valve 503B; the second air inlet valve 503A is installed in the inflation air path of the right airbag 8 in the rear axle air suspension of the passenger car, and the second air inlet valve 503A is used for opening or closing the inflation air path of the right airbag 8 in the rear axle air suspension of the passenger car; the second air outlet valve 503B is installed in the air outlet path of the right air bag 8 in the rear axle air suspension of the passenger car, and the second air outlet valve 503B is used for opening or closing the air outlet path of the right air bag 8 in the rear axle air suspension of the passenger car.
The third dual electric control solenoid valve 504 includes a third inlet valve 504A and a third outlet valve 504B; the third air intake valve 504A is installed in the inflation air path of the left airbag 8 in the rear axle air suspension of the passenger car, and the third air intake valve 504A is used for opening or closing the inflation air path of the left airbag 8 in the rear axle air suspension of the passenger car; the third air outlet valve 504B is installed in the air outlet path of the left air bag 8 in the rear axle air suspension of the passenger car, and the third air outlet valve 504B is used for opening or closing the air outlet path of the left air bag 8 in the rear axle air suspension of the passenger car.
The two-position two-way solenoid valve 501 is a normally open solenoid valve, and is kept in a closed state in a power-on state, so as to realize a side kneeling function. When the passenger car normally runs or is normally parked, the main controller 1 does not send a closing instruction to the two-position two-way electromagnetic valve 501, namely, the main controller 1 does not electrify the two-position two-way electromagnetic valve 501, the two-position two-way electromagnetic valve 501 is in a normally open state at the moment, and at the moment, the air bags 8 on the two sides of the front axle are in a through state and are inflated and deflated through the first double-electric control electromagnetic valve 502. When the old, the child and the disabled get on or off the vehicle, the main controller 1 sends a closing instruction to the two-position two-way electromagnetic valve 501, namely the main controller 1 energizes the two-position two-way electromagnetic valve 501 to close the two-position two-way electromagnetic valve 501, so that the air passage of the air bag 8 of the front axle air suspension located on the opposite side of the vehicle door is closed; meanwhile, the main controller 1 sends out an air release instruction to the first dual-electric-control electromagnetic valve 502 and the second dual-electric-control electromagnetic valve 503, that is, the main controller 1 outputs voltage to the first air outlet valve 502B in the first dual-electric-control electromagnetic valve 502 and the second air outlet valve 503B in the second dual-electric-control electromagnetic valve 503 to open the first air outlet valve 502B and the second air outlet valve 503B (the first air inlet valve 502A, the second air inlet valve 503A and the third air inlet valve 504A and the third air outlet valve 504B of the third dual-electric-control electromagnetic valve 504) so as to deflate the air bags 8 at the side of the vehicle door and the side of the vehicle door of the front axle air suspension, so that the vehicle body inclines towards the side of the vehicle door, and the old, children and the disabled can get on. After the old, children and disabled people finish getting on or off the vehicle, the display and setting module is used for setting, the main controller 1 sends an opening instruction to the two-position two-way solenoid valve 501 to enable the airbags on the two sides of the front axle air suspension to be communicated, and simultaneously sends inflation instructions to the first dual-electric-control solenoid valve 502 and the second dual-electric-control solenoid valve 503, namely, the main controller 1 sends the opening instruction to the two-position two-way solenoid valve 501, and simultaneously outputs voltage to the first air inlet valve 502A in the first dual-electric-control solenoid valve 502 and the second air inlet valve 503A in the second dual-electric-control solenoid valve 503 to enable the first air inlet valve 502A and the second air inlet valve 503A to be opened (the first air outlet valve 502B, the second air outlet valve 503B, the third air inlet valve 504A and the third air outlet valve 504B of the third dual-electric-control solenoid valve 504) to enable the airbags 8 on, make door one side of automobile body rise, main control unit 1 passes through height sensor 2 control automobile body height simultaneously, treats that the height of the door one side of automobile body is unanimous with the height of automobile body door opposite side and reaches the height that sets up after, main control unit 1 stops all instructions, and the automobile body reaches the height that sets up. This completes one "side kneeling" operation.
The air suspension control system can monitor the vehicle condition through the vehicle height information and the speed information fed back by the height sensor 2, the speed sensor 3 and the pressure sensor 4 and the pressure information of the air storage tank 7 by using a program preset in the main controller 1, and carries out on-off operation on the electromagnetic valve group in real time according to the information, thereby realizing the automatic adjustment of the vehicle height. A plurality of working state modes can be set according to the common running road surface and the running speed, the working state modes are changed in real time according to the monitored height information and speed information of the bus body and the pressure information of the gas storage tank 7, and further the requirements of adjusting the height of the bus body at any time according to the changes of the road surface and the speed of the bus so as to realize the aspects of the operation stability, riding comfort, fuel economy, riding convenience and the like of the bus. For example, according to the running speed of the vehicle, when the speed is greater than 20 km/h, the height of the whole vehicle is reduced by a certain height (preset) on the basis of the height of one height mode and enters another height mode, so that the height of the vehicle body can be automatically reduced during high-speed running, the wind resistance is reduced, the running control stability is improved, and the fuel consumption is reduced.
Fig. 5 is the structural schematic diagram of the second embodiment of the passenger car air suspension control system of the present invention, and fig. 8 is the circuit structural schematic diagram of the second embodiment of the passenger car air suspension control system of the present invention. The difference of the second embodiment from the first embodiment is that the second embodiment is added with a display and setting module 6, and the display and setting module 6 is installed on an instrument desk of the passenger car, and is used for feeding back the car body height information, the speed information and the pressure information of the air storage tank 7, and setting the suspension system parameters and selecting the working mode. Correspondingly, the main controller 1 is connected with the height sensor 2, the speed sensor 3, the pressure sensor 4, the electromagnetic valve bank and the display and setting module 6 through data cables, and is used for respectively receiving the height information of the vehicle body, the speed information and the pressure information of the air storage tank 7 from the height sensor 2, the speed sensor 3 and the pressure sensor 4, sending the height information of the vehicle body, the speed information and the pressure information of the air storage tank 7 to the display and setting module 6, acquiring the parameter information and the working mode information of the suspension system from the display and setting module 6, and controlling the electromagnetic valve bank to be opened and/or closed according to the height information of the vehicle body, the speed information, the pressure information of the air storage tank 7, the parameter information. Thus, the display and setting module 6 can directly feed back the system state information such as the height information of the vehicle body, the speed information and the pressure information of the air storage tank 7 to the driver, and set the parameters of the suspension system and select the relevant operation modes.
Specifically, referring to fig. 6 and 8, the display and setting module 6 includes a second control module 601, a second CAN (Controller Area Network) bus transceiver module 602, a liquid crystal display module 603, a setting panel 604, and a second power module 605. The second CAN bus transceiver module 602 is electrically connected to the main controller 1, and is configured to perform information interaction with the main controller 1; the second control module 601 is configured to receive the body height information, the speed information, and the pressure information of the air tank 7 from the master controller 1 through the second CAN bus transceiver module 602, and send the suspension system parameter information and the working mode information to the master controller 1 through the second CAN bus transceiver module 602; the liquid crystal display module 603 is used for receiving and displaying the vehicle height information, the speed information and the pressure information of the air storage tank 7 from the second control module 601; the setting panel 604 is used for setting suspension system parameters and selecting a working mode, and sending the set suspension system parameters and the selected working mode to the second control module 601; the second power module 605 is used for supplying power to the second control module 601, the liquid crystal display module 603 and the setting panel 604.
As a specific example, the second control module 601 may employ the MC9S12D64CPV chip of Feichka; the power module can adopt an LM2576HV S-5.0 chip, which can provide 5V voltage for the MC9S12D64CPV chip of the second control module 601; the second CAN bus transceiver module 602 may employ a PCA82C250 chip; the liquid crystal display module 603 can adopt a YB12232ZA module, which can provide visual vehicle height information and fault information for users; the setup panel 604 may be implemented as a membrane switch and may include function buttons such as "center, up, down, side, kneel, query" to set system parameters and select operational modes. The display and setting module 6 is mainly used for providing a friendly man-machine interaction interface for users, carrying out system setting on line, feeding back the state information of the whole vehicle in real time, providing system fault information and facilitating maintenance.
Corresponding to the display and setting module 6, as shown in fig. 7 and 8, the main controller 1 includes a first control module 101, a power amplification module 102, a first power module 103, and a first CAN bus transceiver module 104. The first CAN bus transceiver module 104 is electrically connected to the display and setting module 6, and is configured to perform information interaction with the display and setting module 6, and the first CAN bus transceiver module 104 may adopt a PCA82C250 chip; correspondingly, the first control module 101 is configured to receive the vehicle height information, the speed information and the pressure information of the air tank 7 from the height sensor 2, the speed sensor 3 and the pressure sensor 4 respectively and send the vehicle height information, the speed information and the pressure information to the display and setting module 6 through the first CAN bus transceiver module 104, receiving the suspension system parameter information and the working mode information from the display and setting module 6 through the first CAN bus transceiver module 104, sending a control signal to the solenoid valve group according to the body height information, the speed information, the pressure information of the air storage tank 7 and the parameter information and the working mode information to control the opening and/or closing of the solenoid valve group, the first control module 101 is connected with the height sensor 2, the speed sensor 3, the pressure sensor 4 and the solenoid valve group through data cables, and is electrically connected with the display and setting module 6 through the first CAN bus transceiver module 104.
To sum up, the utility model discloses a passenger train air suspension control system utilizes height sensor 2, velocity sensor 3 and pressure sensor 4 to monitor the relevant parameter when the car goes, can pass through opening and/or closing operation of each solenoid valve in the electromagnetism valves according to the control condition and fill the gassing with gasbag 8 in the passenger train air suspension, and then realize the automatically regulated to passenger train automobile body height to adapt to the requirement of different road surface situation and adaptation speed of a motor vehicle, also guarantee the perfect maneuverability of car when improving the stationarity and the travelling comfort of passenger train. And simultaneously, the utility model discloses in have install in lie in the door offside gasbag 8 in the front axle air suspension aerify gas circuit and the two-position two way solenoid valve 501 of gassing gas circuit, "the side kneels" of passenger train can be realized through this two-position two way solenoid valve 501's on-off operation for passenger train door one side inclines to ground, and then makes the door footboard be close to ground, realizes that old man, children and the personage that gets on or off the bus and have the trouble can relax getting on or off the bus. These operations, as well as the feedback of the body height information, the speed information and the pressure information of the gas tank 7, can be carried out by means of the display and setting module 6. Additionally, the utility model discloses a solenoid valve replaces traditional mechanical altitude valve, and very big reduction fills the error of gassing operation, cooperation main control unit's real time control, fine satisfied the passenger train operating stability, take the requirement in aspects such as travelling comfort, fuel economy and convenience by bus.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A passenger vehicle air suspension control system, comprising:
the height sensor is arranged on a frame of the passenger car and used for acquiring the height information of the body of the passenger car;
the speed sensor is arranged on an output shaft of a gearbox of the passenger car and used for acquiring speed information of the passenger car;
the pressure sensor is arranged on an air storage tank of the passenger car and used for acquiring pressure information of the air storage tank;
the electromagnetic valve group is arranged on an inflation gas circuit and a deflation gas circuit of an air bag in the air suspension of the passenger car, and is used for opening or closing the inflation gas circuit of the air bag and opening or closing the deflation gas circuit of the air bag;
the display and setting module is arranged on an instrument desk of the passenger car, is used for feeding back the height information of the passenger car body, the speed information and the pressure information of the air storage tank, and is used for setting suspension system parameters and selecting a working mode; and the number of the first and second groups,
and the main controller is connected with the height sensor, the speed sensor, the pressure sensor, the electromagnetic valve group and the display and setting module through data cables, is used for respectively receiving the height information of the vehicle body, the speed information and the pressure information of the gas storage tank from the height sensor, the speed sensor and the pressure sensor and sending the height information of the vehicle body, the speed information and the pressure information of the gas storage tank to the display and setting module, acquires the parameter information and the working mode information of the suspension system from the display and setting module, and controls the opening and/or closing of the electromagnetic valve group according to the height information of the vehicle body, the speed information, the pressure information of the gas storage tank and the parameter information and the.
2. The passenger vehicle air suspension control system of claim 1, wherein:
the height sensor comprises an angle sensor, a sensor valve core and a sensor shell; wherein,
a rotating shaft of the angle sensor is connected with a valve core of the sensor, and the height information of the vehicle body is obtained by converting the change of the measured angle into the change of the height;
the angle sensor and the sensor valve core are fixed in the sensor shell.
3. The passenger vehicle air suspension control system of claim 2, wherein: the number of the height sensors is 3, the height sensors are respectively arranged on a front axle door side frame, a rear axle left side frame and a rear axle right side frame of the passenger car, and the height sensors are connected with the axle through a transverse swing rod and a vertical swing rod.
4. The passenger vehicle air suspension control system of claim 1, wherein the solenoid valve block comprises:
the first double-electric control electromagnetic valve is used for opening or closing the inflation gas circuits of the airbags on the two sides in the front axle air suspension of the passenger car and opening or closing the deflation gas circuits of the airbags on the two sides in the front axle air suspension, and is arranged on the inflation gas circuits and the deflation gas circuits of the airbags on the two sides in the front axle air suspension;
the second double-electric control electromagnetic valve is used for opening or closing the inflation gas circuit of the right airbag in the rear axle air suspension of the passenger car and opening or closing the deflation gas circuit of the right airbag in the rear axle air suspension, and is arranged on the inflation gas circuit and the deflation gas circuit of the right airbag in the rear axle air suspension;
the third dual-electric control electromagnetic valve is used for opening or closing an inflation gas circuit of the left airbag in the rear axle air suspension, and opening or closing a deflation gas circuit of the left airbag in the rear axle air suspension, and is arranged on the inflation gas circuit and the deflation gas circuit of the left airbag in the rear axle air suspension;
the two-position two-way electromagnetic valve is used for opening or closing an inflation air path and a deflation air path of the air bag positioned on the opposite side of the vehicle door in the front axle air suspension, and the inflation air path and the deflation air path of the air bag positioned on the opposite side of the vehicle door in the front axle air suspension.
5. The passenger vehicle air suspension control system of claim 4, wherein the first, second and third dual electrically controlled solenoid valves are all split stainless steel solenoid valves.
6. The passenger vehicle air suspension control system of claim 5, wherein: the split stainless steel electromagnetic valve comprises an air inlet valve and an air outlet valve; the air inlet valve is arranged in an inflation air path of the air storage tank for inflating the air bag; the air outlet valve is arranged on the air discharging path of the air bag.
7. The passenger vehicle air suspension control system of claim 4, wherein: the two-position two-way electromagnetic valve is a normally open electromagnetic valve.
8. The passenger vehicle air suspension control system of claim 1, wherein the display and settings module comprises:
the second CAN bus transceiving module is electrically connected with the main controller and is used for carrying out information interaction with the main controller;
the second control module is used for receiving the vehicle height information, the speed information and the pressure information of the air storage tank from the main controller through the second CAN bus transceiver module and sending suspension system parameter information and working mode information to the main controller through the second CAN bus transceiver module;
the liquid crystal display module is used for receiving and displaying the vehicle height information, the speed information and the pressure information of the air storage tank from the second control module;
a setting panel for setting suspension system parameters and selecting a working mode, and sending the set suspension system parameter information and the selected working mode information to the second control module; and the number of the first and second groups,
and the second power supply module is used for supplying power to the second control module, the liquid crystal display module and the setting panel.
9. A passenger vehicle air suspension control system as claimed in any one of claims 1 to 8, wherein said master controller comprises:
the first CAN bus transceiving module is electrically connected with the display and setting module and is used for carrying out information interaction with the display and setting module;
the first CAN bus transceiver module is used for respectively receiving the height information of the vehicle body, the speed information and the pressure information of the air storage tank from the height sensor, the speed sensor and the pressure sensor and sending the height information of the vehicle body, the speed information and the pressure information of the air storage tank to the display and setting module through the first CAN bus transceiver module, a first control module which acquires the suspension system parameter information and the working mode information from the display and setting module through the first CAN bus transceiver module, sends a control signal to the solenoid valve group according to the vehicle height information, the speed information, the pressure information of the air storage tank, the suspension system parameter information and the working mode information so as to control the opening and/or closing of the solenoid valve group, is connected with the height sensor, the speed sensor, the pressure sensor and the electromagnetic valve group through data cables, the first CAN bus transceiver module is electrically connected with the display and setting module;
the power amplification module is used for amplifying the control signal and is electrically connected between the first control module and the electromagnetic valve group; and the number of the first and second groups,
and the first power supply module is used for supplying power to the first control module, the power amplification module and the height sensor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043564 CN203093670U (en) | 2013-01-25 | 2013-01-25 | Passenger car pneumatic suspension control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043564 CN203093670U (en) | 2013-01-25 | 2013-01-25 | Passenger car pneumatic suspension control system |
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| CN203093670U true CN203093670U (en) | 2013-07-31 |
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| CN 201320043564 Expired - Lifetime CN203093670U (en) | 2013-01-25 | 2013-01-25 | Passenger car pneumatic suspension control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103085628A (en) * | 2013-01-25 | 2013-05-08 | 中国公路车辆机械有限公司 | Passenger car air suspension control system |
| CN105128621A (en) * | 2015-07-28 | 2015-12-09 | 金龙联合汽车工业（苏州）有限公司 | Passenger car body posture adjusting system and control method for same |
| CN105291754A (en) * | 2014-06-27 | 2016-02-03 | 通用汽车环球科技运作有限责任公司 | Control of adjustable ride height suspension |
| CN106274338A (en) * | 2016-08-31 | 2017-01-04 | 中国重汽集团济南动力有限公司 | Full air suspension exchange envelope transport vehicle chassis |
| CN106528075A (en) * | 2015-09-14 | 2017-03-22 | 福特全球技术公司 | Active vehicle suspension |
| CN106681312A (en) * | 2017-03-13 | 2017-05-17 | 吉林大学 | In-the-loop test method and test platform support for electric control air suspension controller |
| CN107444054A (en) * | 2017-06-30 | 2017-12-08 | 江苏大学 | Auxiliary aerating device applied to air suspension |
| CN107499271A (en) * | 2017-09-01 | 2017-12-22 | 浙江万安科技股份有限公司 | A kind of car anti-rollover control system and method based on electronic control air suspension and electric controlled brake system |
| EP2902223B1 (en) * | 2014-01-14 | 2019-03-20 | WABCO GmbH | Method for level adjustment of a vehicle |
| CN110509737A (en) * | 2018-05-22 | 2019-11-29 | 郑州宇通客车股份有限公司 | A kind of adaptive electronic controlled suspension control system and method |
| CN111660749A (en) * | 2020-06-29 | 2020-09-15 | 厦门金龙联合汽车工业有限公司 | Method for controlling height of air suspension vehicle body |
| CN112721562A (en) * | 2021-02-04 | 2021-04-30 | 安徽安凯汽车股份有限公司 | Intelligent management system for air suspension air bag of passenger car |
| CN114701574A (en) * | 2022-03-24 | 2022-07-05 | 东风柳州汽车有限公司 | Whole car structure |
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| CN103085628B (en) * | 2013-01-25 | 2016-02-24 | 中国公路车辆机械有限公司 | A kind of Passenger car air suspension control system |
| CN103085628A (en) * | 2013-01-25 | 2013-05-08 | 中国公路车辆机械有限公司 | Passenger car air suspension control system |
| EP2902223B1 (en) * | 2014-01-14 | 2019-03-20 | WABCO GmbH | Method for level adjustment of a vehicle |
| CN105291754A (en) * | 2014-06-27 | 2016-02-03 | 通用汽车环球科技运作有限责任公司 | Control of adjustable ride height suspension |
| CN105291754B (en) * | 2014-06-27 | 2018-02-16 | 通用汽车环球科技运作有限责任公司 | The control of adjustable terrain clearance suspension |
| CN105128621A (en) * | 2015-07-28 | 2015-12-09 | 金龙联合汽车工业（苏州）有限公司 | Passenger car body posture adjusting system and control method for same |
| CN106528075A (en) * | 2015-09-14 | 2017-03-22 | 福特全球技术公司 | Active vehicle suspension |
| CN106274338A (en) * | 2016-08-31 | 2017-01-04 | 中国重汽集团济南动力有限公司 | Full air suspension exchange envelope transport vehicle chassis |
| CN106681312A (en) * | 2017-03-13 | 2017-05-17 | 吉林大学 | In-the-loop test method and test platform support for electric control air suspension controller |
| CN107444054A (en) * | 2017-06-30 | 2017-12-08 | 江苏大学 | Auxiliary aerating device applied to air suspension |
| CN107499271A (en) * | 2017-09-01 | 2017-12-22 | 浙江万安科技股份有限公司 | A kind of car anti-rollover control system and method based on electronic control air suspension and electric controlled brake system |
| CN107499271B (en) * | 2017-09-01 | 2024-03-08 | 浙江万安科技股份有限公司 | Electric control air suspension based passenger car rollover prevention control method |
| CN110509737A (en) * | 2018-05-22 | 2019-11-29 | 郑州宇通客车股份有限公司 | A kind of adaptive electronic controlled suspension control system and method |
| CN111660749A (en) * | 2020-06-29 | 2020-09-15 | 厦门金龙联合汽车工业有限公司 | Method for controlling height of air suspension vehicle body |
| CN112721562A (en) * | 2021-02-04 | 2021-04-30 | 安徽安凯汽车股份有限公司 | Intelligent management system for air suspension air bag of passenger car |
| CN112721562B (en) * | 2021-02-04 | 2022-03-29 | 安徽安凯汽车股份有限公司 | Intelligent management system for air suspension air bag of passenger car |
| CN114701574A (en) * | 2022-03-24 | 2022-07-05 | 东风柳州汽车有限公司 | Whole car structure |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20160224 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |