CN106681312A - In-the-loop test method and test platform support for electric control air suspension controller - Google Patents

In-the-loop test method and test platform support for electric control air suspension controller Download PDF

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Publication number
CN106681312A
CN106681312A CN201710146635.6A CN201710146635A CN106681312A CN 106681312 A CN106681312 A CN 106681312A CN 201710146635 A CN201710146635 A CN 201710146635A CN 106681312 A CN106681312 A CN 106681312A
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CN
China
Prior art keywords
signal
height
ecas
vehicle
analog
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CN201710146635.6A
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Chinese (zh)
Inventor
陈国迎
张学臣
赵伟强
何磊
郑宏宇
宗长富
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Jilin University
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Jilin University
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Priority to CN201710146635.6A priority Critical patent/CN106681312A/en
Publication of CN106681312A publication Critical patent/CN106681312A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring
    • G05B23/0205Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0208Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
    • G05B23/0213Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/24Pc safety
    • G05B2219/24065Real time diagnostics

Abstract

The invention discloses an in-the-loop test method and a test platform support for electric control air suspension controller. The method comprises: establishing an ECAS vehicle power dynamic model on an XPC hardware-in-the-loop platform wherein the ECAS vehicle power dynamic model is used to simulate the travel of a real vehicle on roads of different grades; transmitting by a vehicle speed simulation device the vehicle speed simulation amount signal to the XPC hardware-in-the-loop platform; converting by a vehicle height simulation device the vehicle height change signal into a height sensor signal and transmitting the height sensor signal to a fault simulation circuit; processing by the fault simulation circuit the height sensor signal for a height signal and transmitting the height signal to the ECAS controller; comparing by the ECAS controller the height signal with a target height signal for a differential value; according to the differential value, sending a valve controlled pulse width signal to the fault simulation circuit; and sending the valve controlled pulse width signal by the fault simulation circuit to the XPC hardware-in-the-loop platform. The method and the test platform support can shorten the development cycle for an ECAS controller, which saves great financial, material and time devotion while increasing the precision for ECAS controller testing.

Description

A kind of electronic control air suspension controller in ring test method and testboard bay
Technical field
The present invention relates to technical field of vehicle control, more particularly to a kind of electronic control air suspension controller is in ring test platform Frame and method.
Background technology
With developing rapidly for transport service and electronic computer technology, people will to the intelligence degree of automotive control system Seek more and more higher, electronic control air suspension (ECAS) is a kind of to carry out Intelligent adjustment to bodywork height according to the driving conditions of automobile Full Active suspension, its market application foreground is very wide.
ECAS systems are mainly made up of parts such as electronic controller, air spring, height sensor, electromagnetic valves, by electricity Control of the sub-controller to electromagnetic valve so as to inflation/deflation regulation is carried out to each air bag, and then realizes bodywork height regulatory function, Automobile is set to be in optimal transport condition.ECAS systems have very strong initiative and adaptivity, and can improve relaxing for operation Adaptive and the sensitivity of reaction, in addition with many miscellaneous functions, such as (driver is by controlling rise/fall for vehicle lifting Switch realizes that bodywork height is adjusted) function, vehicle side kneel it is (convenient by the height that door side vehicle body is reduced to air bag inflation/deflation Get on or off the bus) function, vehicle limit for height function etc., therefore ECAS systems become the new direction of air suspension of passenger car development.
However, in the development process of ECAS controllers, at present generally using the method validation controller work(of real train test Can, the problems such as the method will face car load, road, driver and construction cycle, need to consume substantial amounts of financial resources, material resources and Time, and tested using real vehicle, the repeatability of test is poor, causes the precision tested not high.
The content of the invention
Based on this, it is necessary to which providing one kind can shorten the ECAS controller construction cycles, save substantial amounts of financial resources, material resources and when Between, and the electronic control air suspension controller of the precision that ECAS controller tests are tested can be improved in ring test stand and method.
In a first aspect, the invention provides a kind of method of testing of electronic control air suspension controller in ring test stand, The electronic control air suspension controller in ring test stand, including:XPC hardware in loop platforms, vehicle-speed analog device, bodywork height Analog, control chamber, ECAS controllers and electromagnetic valve, the control chamber includes fault simulation circuit, signal-processing board, speed Change-over circuit, switch and indicating lamp module and power supply;
The method of testing, specially:
ECAS vehicle dynamic models, the ECAS vehicle dynamic models are set up on the XPC hardware in loop platform For simulating real vehicle in different grades of road traveling;
The vehicle-speed analog device sends speed analog signalses to the XPC hardware in loop platform;
The bodywork height analog receives the bodywork height variable signal that the XPC hardware in loop platform sends, institute State bodywork height analog and the bodywork height variable signal for receiving is converted into into height sensor signal, and will be described Height sensor signal is sent in the fault simulation circuit into the control chamber;
The fault simulation circuit obtains altitude signal after processing the height sensor signal for receiving, and The altitude signal and supply gas pressure signal are sent into the ECAS controllers;
The speed change-over circuit sends vehicle speed pulse into the ECAS controllers;
The switch and indicating lamp module send object height signal into the ECAS controllers;
The ECAS controllers receive the altitude signal, the supply gas pressure signal, the vehicle speed pulse and The object height signal, and the altitude signal is compared with the object height signal obtains difference, according to described Difference sending valve control pulse width signal is into the fault simulation circuit;
The fault simulation circuit sends the valve control pulse width signal into the signal-processing board and the electromagnetic valve, The signal-processing board sends the valve control pulse width signal after process to the XPC hardware in loop platform, complete so as to constitute ECAS closed-loop control systems, realize the regulation of bodywork height.
Optionally, the ECAS vehicle dynamic models, including:Road surface model, vehicle nine-degree of freedom model, air spring Model, electromagnetic valve model and motion modular converter;
The road surface model is used to produce road excitation;
The vehicle nine-degree of freedom model receives the road excitation and is multiplied by the speed analog signalses after 20, The vehicle nine-degree of freedom model can be travelled on tri- kinds of different road surfaces of A, B, C;
The air spring model is used to send air spring model height change signal to the motion modular converter;
The air spring model height change signal for receiving is converted to umber of pulse by the motion modular converter, institute State umber of pulse to send into the bodywork height analog through the built-in board of industrial computer;
The electromagnetic valve model is used to receive valve control pulse width signal, and sends inflation/deflation flow signal to the air spring In model, the height for controlling the air spring model is adjusted to object height.
Second aspect, the invention provides a kind of electronic control air suspension controller is in ring test stand, including:XPC hardware In ring platform, vehicle-speed analog device, bodywork height analog, control chamber, ECAS controllers and electromagnetic valve;
The XPC hardware in loop platform is used to set up ECAS vehicle dynamic models, the ECAS vehicle dynamic models For simulating real vehicle in different grades of road traveling;
The vehicle-speed analog device is connected with the XPC hardware in loop platform, for exporting speed analog signalses, and will The speed analog signalses are sent to the XPC hardware in loop platform;
The bodywork height analog is connected with the XPC hardware in loop platform, for receiving the XPC hardware in loop The bodywork height variable signal that platform sends, and the bodywork height variable signal is converted into into height sensor signal;
The control chamber include fault simulation circuit, signal-processing board, speed change-over circuit, switch and indicating lamp module and Power supply;
The input of the fault simulation circuit connects respectively the bodywork height analog and the ECAS controllers Valve control signal pins, the outfan of the fault simulation circuit connects respectively the electromagnetic valve, the signal-processing board and described The height sensor stitch of ECAS controllers;The fault simulation circuit is used to receive the height sensor signal, and will place The altitude signal and supply gas pressure signal obtained after reason is sent into the ECAS controllers;The fault simulation circuit is used for The valve control pulse width signal that the ECAS controllers send is received, and the valve control pulse width signal is respectively sent to into the electromagnetic valve In the signal-processing board;
The signal-processing board is used to receive the valve control pulse width signal, and by the valve control pulse width signal after process send to The XPC hardware in loop platform;
The speed change-over circuit is used to receive the speed analog signalses that the XPC hardware in loop platform sends, And the speed analog signalses are converted to into vehicle speed pulse send into the ECAS controllers;
The switch and indicating lamp module are connected with the ECAS controllers, for sending object height signal to described In ECAS controllers, and receive the instruction modulating signal that the ECAS controllers send;
The ECAS controllers are used to receive the altitude signal, the supply gas pressure signal, the vehicle speed pulse And the object height signal, and the altitude signal is compared with the object height signal obtains difference, according to The difference sends the valve control pulse width signal into the fault simulation circuit;
The electromagnetic valve is used to receive the valve control pulse width signal that the fault simulation circuit sends.
Optionally, the ECAS vehicle dynamic models, including:Road surface model, vehicle nine-degree of freedom model, air spring Model, electromagnetic valve model and motion modular converter;
The road surface model is used to produce road excitation;
The vehicle nine-degree of freedom model receives the road excitation and is multiplied by the speed analog signalses after 20, The vehicle nine-degree of freedom model can be travelled on tri- kinds of different road surfaces of A, B, C;
The air spring model is used to send air spring model height change signal to motion modular converter;
The air spring model height change signal for receiving is converted to umber of pulse by the motion modular converter, institute State umber of pulse to send into the bodywork height analog through the built-in board of industrial computer;
The electromagnetic valve model is used to receive valve control pulse width signal, and sends inflation/deflation flow signal to the air spring In model, the height for controlling the air spring model is adjusted to object height.
Optionally, the vehicle-speed analog device, including:Slide rheostat, graduated disc, knob, the first wire, the second wire And privates;The fixing end of the slide rheostat connects one end of first wire and second wire, the cunning Dynamic rheostatic convertible tip connects one end of the privates, and the other end connection industrial computer of first wire is built-in The 5V out-put supplies of board, the other end of second wire connects the ground wire of the built-in board of the industrial computer, and the described 3rd leads The other end of line connects the A/D collection terminals of the built-in board of the industrial computer, pointer position of the knob in the graduated tile.
Optionally, described bodywork height analog, including:3 stepper motor drivers, 3 motors, 3 Shaft coupling, 3 height sensors, 12V power supplies and multiple conducting wires;3 stepper motor drivers drive respectively described 3 Individual motor;3 stepper motor drivers are connected respectively by the multiple conducting wires with the built-in board of the industrial computer; The height of the air spring model increases l mm, then 3 motors are to the angle that first direction is rotatedInstitute The height reduction l mm of air spring model is stated, then 3 motors are to the angle that second direction is rotatedIt is described First direction with the second direction conversely, wherein l for air spring model high variable quantity, θ for motor step pitch Angle, γ is the speed reducing ratio of planetary reduction gear;3 motors are passed respectively by 3 shaft couplings and 3 height Sensor connects;The 12V power supplies are used to be powered to 3 stepper motor drivers.
Optionally, the fault simulation circuit, including:Circuit board, relay module, optocoupler, display lamp and 5V power electricity Source;The relay module simulates the short circuit of the height sensor signal and the valve control pulse width signal using relay on-off And open circuit;The optocoupler is used to carry out signal isolation;The 5V power supplies are used for the relay module and the optocoupler Power supply.
Optionally, the signal-processing board, including:RC hardware filterings, 74HC245 circuits, resistor voltage divider circuit;The RC Hardware filtering is used to eliminate noise jamming;The 74HC245 circuits carry out impedance matching for A/D boards built-in with industrial computer.
Optionally, the vehicle speed pulse that the speed change-over circuit sends is 8 pulse GESs.
Optionally, the switch and indicating lamp module include:Fault simulation switch module, controlling switch module and display lamp Module.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention proposes a kind of electronic control air suspension controller in ring test stand and method, puts down in XPC hardware in loop ECAS vehicle dynamic models are set up on platform, real vehicle is simulated in different grades of road surface row using ECAS vehicle dynamic models Sail, instead of real vehicle, road surface and the driver of ECAS controller tests test, improve test efficiency and test accuracy;Pass through Motion modular converter is sent to the height change in air spring model in bodywork height analog, and then controls height biography Sensor signal changes, and solves from virtually to conversion in kind;Speed analog signalses are sent by speed analog module, Enable XPC hardware in loop platform Real-time Collection speeds;By arranging the short circuit of fault simulation breadboardin, open circuit and pressure Not enough obstacle, efficiently and conveniently can verify to ECAS controller failure monitoring functions.The present invention substantially reduces ECAS controls The construction cycle of device processed, substantial amounts of financial resources, material resources and time are saved, and improve the essence of ECAS controller tests test Degree.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment The accompanying drawing that needs are used is briefly described, it should be apparent that, drawings in the following description are only some enforcements of the present invention Example, for those of ordinary skill in the art, without having to pay creative labor, can be with according to these accompanying drawings Obtain other accompanying drawings.
Fig. 1 is embodiment of the present invention testing stand overall construction drawing;
Fig. 2 is embodiment of the present invention ECAS vehicle dynamic model structure chart;
Fig. 3 is embodiment of the present invention bodywork height analog structure chart;
Fig. 4 is embodiment of the present invention control chamber structure chart.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, it is below in conjunction with the accompanying drawings and concrete real The present invention is further detailed explanation to apply mode.
Fig. 1 is embodiment of the present invention testing stand overall construction drawing;Fig. 2 is embodiment of the present invention ECAS vehicle dynamic model Structure chart;Fig. 3 is embodiment of the present invention bodywork height analog structure chart;Fig. 4 is embodiment of the present invention control chamber structure chart.
Referring to Fig. 1, the method for testing of the electronic control air suspension controller in ring test stand is used in the automatically controlled sky Gas suspension controller is tested on ring test stand, the electronic control air suspension controller in ring test stand, including: XPC hardware in loop platform 1, vehicle-speed analog device 2, bodywork height analog 4, control chamber 5, ECAS controllers 6 and electromagnetic valve 7, the control chamber 5 includes fault simulation circuit 8, signal-processing board 9, speed change-over circuit 10, switch and indicating lamp module 11 With power supply 12;
The XPC hardware in loop platform 1 is the platform based on Matlab/xPC target developing instruments, using main frame and The technological approaches of target machine connection, are mainly used in product prototype exploitation, test and configure real-time system, the XPC hardware in loop The main development experiments stand dummy model of host and compiling in platform 1 is downloaded in target machine, and target machine is run by host The C code that machine compiling is generated, and realize that the signal in kind with external hardware is interacted using built-in board;
ECAS vehicle dynamic models 3, the ECAS dynamics of vehicle mould are set up on the XPC hardware in loop platform 1 Type 3 is used to simulate real vehicle in different grades of road traveling, referring to Fig. 2, the ECAS vehicle dynamic models 3, including:Road surface Model 31, vehicle nine-degree of freedom model 32, air spring model 33, electromagnetic valve model 34 and motion modular converter 35;The road Surface model 31 is used to produce road excitation;After the vehicle nine-degree of freedom model 32 receives the road excitation and is multiplied by 20 The speed analog signalses, the vehicle nine-degree of freedom model 32 can be travelled on tri- kinds of different road surfaces of A, B, C;The sky Gas spring model 33 is used to send air spring model height change signal to the motion modular converter 35;The motion conversion Module 35 is used to for the air spring model height change signal for receiving to be converted to umber of pulse;The electromagnetic valve model 34 For receiving valve control pulse width signal, and inflation/deflation flow signal is sent into the air spring model 33, control the air The height of spring model 33 to object height is adjusted;
The method of testing, specially:
ECAS vehicle dynamic models 3, the ECAS dynamics of vehicle mould are set up on the XPC hardware in loop platform 1 Air spring height change is converted into stepping electricity by the air spring model 33 in type 3 by the motion modular converter 35 The umber of pulse (bodywork height variable signal) of machine driver is sent in the bodywork height analog 4, the bodywork height Bodywork height variable signal is converted into height sensor signal and is sent to the fault simulation circuit 8, then by institute by analog 4 State fault simulation circuit 8 to send to the ECAS controllers 6, in addition the ECAS controllers 6 also receive the speed conversion electricity Vehicle speed pulse, the supply gas pressure signal of the fault simulation circuit 8 transmission, the switch and display lamp mould that road 10 sends The object height signal that block 11 sends, comprehensive above the signal of ECAS controllers 6 by the height sensor signal for receiving and Object height signal is compared, according in difference sending valve control pulse width signal to the fault simulation circuit 8, the failure mould Intend circuit 8 again the valve control pulse width signal to be sent to the signal-processing board 9, the signal-processing board 9 is the institute after process State valve control pulse width signal to send to the electromagnetic valve model 34 of the XPC hardware in loop platform 1, realize air spring charge and discharge Gas, the height for controlling the air spring model 33 is adjusted to object height, so as to constitute complete ECAS closed-loop control systems.
A kind of electronic control air suspension controller in ring test stand, including:XPC hardware in loop platform 1, vehicle-speed analog device 2nd, bodywork height analog 4, control chamber 5, ECAS controllers 6 and electromagnetic valve 7;
The XPC hardware in loop platform 1 is used to set up ECAS vehicle dynamic models 3, the ECAS dynamics of vehicle mould Type 3 is used to simulate real vehicle in different grades of road traveling;
In the present embodiment, the ECAS vehicle dynamic models 3, including:Road surface model 31, vehicle nine-degree of freedom model 32nd, air spring model 33, electromagnetic valve model 34 and motion modular converter 35;The road surface model 31 swashs for producing road surface Encourage;The vehicle nine-degree of freedom model 32 receives the road excitation and is multiplied by the speed analog signalses after 20, institute Stating vehicle nine-degree of freedom model 32 can travel on tri- kinds of different road surfaces of A, B, C;The air spring model 33 is used to send Air spring model height change signal is to motion modular converter 35;The motion modular converter 35 is by the air for receiving Spring model height change signal is converted to umber of pulse, and the umber of pulse sends high to the vehicle body through the built-in board of industrial computer In degree analog 4;The electromagnetic valve model 34 is used to receive valve control pulse width signal, and sends inflation/deflation flow signal to described In air spring model 33, the height for controlling the air spring model 33 is adjusted to object height;
In the present embodiment, the vehicle-speed analog device 2 is connected with the XPC hardware in loop platform 1, for exporting speed mould Analog quantity signal, and the speed analog signalses are sent to the vehicle nine-degree of freedom model 32 of the XPC hardware in loop platform 1 In, the vehicle-speed analog device 2, including:Slide rheostat, graduated disc, knob, the first wire, the second wire and privates; The fixing end of the slide rheostat connects one end of first wire and second wire, the slide rheostat can Become one end that end connects the privates, the other end of first wire connects the 5V outputs of the built-in board of the industrial computer Power supply, the other end of second wire connects the ground wire of the built-in board of the industrial computer, and the other end of the privates connects The A/D collection terminals of the built-in board of the industrial computer are connect, the knob can exactly reflect car in the pointer position of the graduated tile The travel speed of nine-degree of freedom model 32,0-5V power supplys are linear with graduated tile 0-100 corresponding;
In the present embodiment, the bodywork height analog 4 is connected with the XPC hardware in loop platform 1, for receiving The bodywork height variable signal of the transmission of XPC hardware in loop platform 1 is stated, and the bodywork height variable signal is converted into into height and passed Sensor signal;Referring to Fig. 3, described bodywork height analog 4, including:3 stepper motor drivers, 41,3 motors 42nd, 43,3 height sensors 44,12V power supplies and multiple conducting wires of 3 shaft couplings;3 stepper motor drivers 41 3 motors 42 are driven respectively;3 stepper motor drivers 41 are respectively by the multiple conducting wires and the work The built-in board connection of control machine;The height of the air spring model 33 increases lmm, then 3 motors 42 are to first party It is to the angle for rotatingThe height reduction l mm of the air spring model 33, then 3 motors 42 to second Direction rotate angle beThe first direction is with the second direction conversely, wherein l is the height of air spring model 33 Degree variable quantity, θ is the step angle of motor, and γ is the speed reducing ratio of planetary reduction gear;3 motors 42 pass through respectively 3 shaft couplings 43 are connected with 3 height sensors 44;The 12V power supplies are used for 3 motors Driver 41 is powered;
In the present embodiment, the control chamber 5 includes fault simulation circuit 8, signal-processing board 9, speed change-over circuit 10, opens Close and indicating lamp module 11 and power supply 12;
The input of the fault simulation circuit 8 connects respectively the bodywork height analog 4 and the ECAS controllers 6 Valve control signal pins, the outfan of the fault simulation circuit 8 meets respectively the electromagnetic valve 7, the signal-processing board 9 and institute State the height sensor stitch of ECAS controllers 6;The fault simulation circuit 8 is used to receive the height sensor signal, and The altitude signal obtained after process and supply gas pressure signal are sent into the ECAS controllers 6;The fault simulation electricity Road 8 is used to receive the valve control pulse width signal that the ECAS controllers 6 send, and the valve control pulse width signal is sent to the electricity In magnet valve 7 and the signal-processing board 9;The fault simulation circuit 8, including:Circuit board, relay module, optocoupler, instruction Lamp and 5V power supplies;The relay module simulates the height sensor signal and the valve control arteries and veins using relay on-off The short-circuit and open circuit of bandwidth signals;The optocoupler is used to carry out signal isolation;The 5V power supplies are used for the relay mould Group and the optocoupler are powered;Referring to Fig. 4, the fault type that the fault simulation circuit 8 can be simulated, including:Solenoid valve failure Simulation 81, height sensor fault simulation 82 and bleed pressure deficiency fault simulation 83;The fault simulation circuit 8 does not work When, equivalent to wire, do not affect the work of whole system;
The signal-processing board 9 is used to receive the valve control pulse width signal, and the valve control pulse width signal after process is sent To the XPC hardware in loop platform 1;The signal-processing board 9, including:RC hardware filterings 91,74HC245 circuits 92, resistance point Volt circuit 93;The RC hardware filterings 91 are used to eliminate noise jamming;The 74HC245 circuits 92 are used for A/ built-in with industrial computer D boards carry out impedance matching;
The speed change-over circuit 10 is used to receive the speed analog quantity letter that the XPC hardware in loop platform 1 sends Number, and the speed analog signalses are converted to into vehicle speed pulse send into the ECAS controllers 6;The speed turns The vehicle speed pulse for changing the transmission of circuit 10 is 8 pulse GESs;
The switch and indicating lamp module 11 are connected with the ECAS controllers 6, for sending object height signal to institute In stating ECAS controllers 6, and receive the instruction modulating signal that the ECAS controllers 6 send;The switch and indicating lamp module 11 Including:Fault simulation switch module, controlling switch module and indicating lamp module;
The power supply 12 includes 12V power supplys and 5V power supplys;
In the present embodiment, the ECAS controllers 6 are used to receiving the altitude signal, the supply gas pressure signal, described Vehicle speed pulse and the object height signal, and the altitude signal is compared with the object height signal To difference, according to the difference transmission valve control pulse width signal into the fault simulation circuit 8;
In the present embodiment, the electromagnetic valve 7 is used to receive the valve control pulsewidth letter that the fault simulation circuit 8 sends Number, the valve control pulse width signal is incorporated in the electromagnetic valve 7, can truer topotype in order to the electromagnetic valve model 34 Intend the control process of the electromagnetic valve 7.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said It is bright to be only intended to help and understand the method for the present invention and its core concept;Simultaneously for one of ordinary skill in the art, foundation The thought of the present invention, will change in specific embodiments and applications.In sum, this specification content is not It is interpreted as limitation of the present invention.

Claims (10)

1. it is a kind of for electronic control air suspension controller is in ring test method, it is characterised in that the method for testing is applied to Electronic control air suspension controller in ring test stand, the electronic control air suspension controller in ring test stand, including:XPC is hard Part is in ring platform, vehicle-speed analog device, bodywork height analog, control chamber, ECAS controllers and electromagnetic valve, the control chamber Including fault simulation circuit, signal-processing board, speed change-over circuit, switch and indicating lamp module and power supply;
The method of testing, specially:
ECAS vehicle dynamic models are set up on the XPC hardware in loop platform, the ECAS vehicle dynamic models are used for Simulation real vehicle is in different grades of road traveling;
The vehicle-speed analog device sends speed analog signalses to the XPC hardware in loop platform;
The bodywork height analog receives the bodywork height variable signal that the XPC hardware in loop platform sends, the car The bodywork height variable signal for receiving is converted into height sensor signal by height degree analog, and by the height Sensor signal is sent in the fault simulation circuit into the control chamber;
The fault simulation circuit obtains altitude signal after processing the height sensor signal for receiving, and by institute State altitude signal and supply gas pressure signal is sent into the ECAS controllers;
The speed change-over circuit sends vehicle speed pulse into the ECAS controllers;
The switch and indicating lamp module send object height signal into the ECAS controllers;
The ECAS controllers receive the altitude signal, the supply gas pressure signal, the vehicle speed pulse and described Object height signal, and the altitude signal is compared with the object height signal obtains difference, according to the difference Sending valve control pulse width signal is into the fault simulation circuit;
The fault simulation circuit sends the valve control pulse width signal into the signal-processing board and the electromagnetic valve, described Signal-processing board sends the valve control pulse width signal after process to the XPC hardware in loop platform, so as to constitute complete ECAS Closed-loop control system, realizes the regulation of bodywork height.
2. method of testing according to claim 1, it is characterised in that the ECAS vehicle dynamic models, including:Road surface Model, vehicle nine-degree of freedom model, air spring model, electromagnetic valve model and motion modular converter;
The road surface model is used to produce road excitation;
The vehicle nine-degree of freedom model receives the road excitation and is multiplied by the speed analog signalses after 20, described Vehicle nine-degree of freedom model can be travelled on tri- kinds of different road surfaces of A, B, C;
The air spring model is used to send air spring model height change signal to the motion modular converter;
The air spring model height change signal for receiving is converted to umber of pulse, the arteries and veins by the motion modular converter Rush Number of the and cross the built-in board of industrial computer and send into the bodywork height analog;
The electromagnetic valve model is used to receive valve control pulse width signal, and sends inflation/deflation flow signal to the air spring model In, the height for controlling the air spring model is adjusted to object height.
3. a kind of electronic control air suspension controller is in ring test stand, it is characterised in that include:XPC hardware in loop platforms, speed Analog, bodywork height analog, control chamber, ECAS controllers and electromagnetic valve;
The XPC hardware in loop platform is used to set up ECAS vehicle dynamic models, and the ECAS vehicle dynamic models are used for Simulation real vehicle is in different grades of road traveling;
The vehicle-speed analog device is connected with the XPC hardware in loop platform, for exporting speed analog signalses, and will be described Speed analog signalses are sent to the XPC hardware in loop platform;
The bodywork height analog is connected with the XPC hardware in loop platform, for receiving the XPC hardware in loop platform The bodywork height variable signal of transmission, and the bodywork height variable signal is converted into into height sensor signal;
The control chamber includes fault simulation circuit, signal-processing board, speed change-over circuit, switch and indicating lamp module and power supply Power supply;
The input of the fault simulation circuit connects respectively the valve control of the bodywork height analog and the ECAS controllers Signal pins, the outfan of the fault simulation circuit connects respectively the electromagnetic valve, the signal-processing board and ECAS control The height sensor stitch of device processed;The fault simulation circuit is used to receive the height sensor signal, and obtains after processing To altitude signal and supply gas pressure signal send into the ECAS controllers;The fault simulation circuit is used to receive institute The valve control pulse width signal of ECAS controllers transmission is stated, and the valve control pulse width signal is respectively sent to into the electromagnetic valve and described In signal-processing board;
The signal-processing board is used to receive the valve control pulse width signal, and the valve control pulse width signal after process is sent to described XPC hardware in loop platforms;
The speed change-over circuit is used to receive the speed analog signalses that the XPC hardware in loop platform sends, and will The speed analog signalses are converted to vehicle speed pulse and send into the ECAS controllers;
The switch and indicating lamp module are connected with the ECAS controllers, control to the ECAS for sending object height signal In device processed, and receive the instruction modulating signal that the ECAS controllers send;
The ECAS controllers be used for receive the altitude signal, the supply gas pressure signal, the vehicle speed pulse and The object height signal, and the altitude signal is compared with the object height signal obtains difference, according to described Difference sends the valve control pulse width signal into the fault simulation circuit;
The electromagnetic valve is used to receive the valve control pulse width signal that the fault simulation circuit sends.
4. a kind of electronic control air suspension controller according to claim 3 is in ring test stand, it is characterised in that described ECAS vehicle dynamic models, including:Road surface model, vehicle nine-degree of freedom model, air spring model, electromagnetic valve model and fortune Dynamic modular converter;
The road surface model is used to produce road excitation;
The vehicle nine-degree of freedom model receives the road excitation and is multiplied by the speed analog signalses after 20, described Vehicle nine-degree of freedom model can be travelled on tri- kinds of different road surfaces of A, B, C;
The air spring model is used to send air spring model height change signal to the motion modular converter;
The air spring model height change signal for receiving is converted to umber of pulse, the arteries and veins by the motion modular converter Rush Number of the and cross the built-in board of industrial computer and send into the bodywork height analog;
The electromagnetic valve model is used to receive valve control pulse width signal, and sends inflation/deflation flow signal to the air spring model In, the height for controlling the air spring model is adjusted to object height.
5. a kind of electronic control air suspension controller according to claim 3 is in ring test stand, it is characterised in that the car Fast analog, including:Slide rheostat, graduated disc, knob, the first wire, the second wire and privates;Described slip becomes The fixing end of resistance device connects one end of first wire and second wire, the convertible tip connection institute of the slide rheostat One end of privates is stated, the other end of first wire connects the 5V out-put supplies of the built-in board of the industrial computer, described The other end of the second wire connects the ground wire of the built-in board of the industrial computer, and the other end of the privates connects the industry control The A/D collection terminals of the built-in board of machine, pointer position of the knob in the graduated tile.
6. a kind of electronic control air suspension controller according to claim 3 is in ring test stand, it is characterised in that described Bodywork height analog, including:3 stepper motor drivers, 3 motors, 3 shaft couplings, 3 height sensors, 12V power supplies and multiple conducting wires;3 stepper motor drivers drive respectively 3 motors;3 steps Stepper motor driver is connected respectively by the multiple conducting wires with the built-in board of the industrial computer;The height of the air spring model Degree increases l mm, then 3 motors are to the angle that first direction is rotatedThe height of the air spring model L mm are reduced, then 3 motors are to the angle that second direction is rotatedThe first direction and the second party To conversely, wherein l for air spring model high variable quantity, θ for motor step angle, γ subtracts for planetary reduction gear Speed ratio;3 motors are connected respectively by 3 shaft couplings with 3 height sensors;The 12V powers Power supply is used to be powered to 3 stepper motor drivers.
7. a kind of electronic control air suspension controller according to claim 3 is in ring test stand, it is characterised in that the event Barrier analog circuit, including:Circuit board, relay module, optocoupler, display lamp and 5V power supplies;The relay module is utilized Relay on-off simulates the short-circuit and open circuit of the height sensor signal and the valve control pulse width signal;The optocoupler be used for into Row signal isolation;The 5V power supplies are used to be powered to the relay module and the optocoupler.
8. a kind of electronic control air suspension controller according to claim 3 is in ring test stand, it is characterised in that the letter Number process plate, including:RC hardware filterings, 74HC245 circuits, resistor voltage divider circuit;The RC hardware filterings are used to eliminate noise Interference;The 74HC245 circuits carry out impedance matching for A/D boards built-in with industrial computer.
9. a kind of electronic control air suspension controller according to claim 3 is in ring test stand, it is characterised in that the car The vehicle speed pulse that fast change-over circuit sends is 8 pulse GESs.
10. a kind of electronic control air suspension controller according to claim 3 is in ring test stand, it is characterised in that described Switch and indicating lamp module include:Fault simulation switch module, controlling switch module and indicating lamp module.
CN201710146635.6A 2017-03-13 2017-03-13 In-the-loop test method and test platform support for electric control air suspension controller Pending CN106681312A (en)

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Application Number Priority Date Filing Date Title
CN201710146635.6A CN106681312A (en) 2017-03-13 2017-03-13 In-the-loop test method and test platform support for electric control air suspension controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710146635.6A CN106681312A (en) 2017-03-13 2017-03-13 In-the-loop test method and test platform support for electric control air suspension controller

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110411356A (en) * 2019-07-30 2019-11-05 安徽安凯汽车股份有限公司 One kind debugging auxiliary system for automobile ECAS
CN110887678A (en) * 2019-11-06 2020-03-17 江苏科技大学 Hardware-in-loop experimental platform and adjusting method of electric control air suspension vehicle height adjusting system
CN110887678B (en) * 2019-11-06 2021-08-31 江苏科技大学 Hardware-in-loop experimental platform and adjusting method of electric control air suspension vehicle height adjusting system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110411356A (en) * 2019-07-30 2019-11-05 安徽安凯汽车股份有限公司 One kind debugging auxiliary system for automobile ECAS
CN110887678A (en) * 2019-11-06 2020-03-17 江苏科技大学 Hardware-in-loop experimental platform and adjusting method of electric control air suspension vehicle height adjusting system
CN110887678B (en) * 2019-11-06 2021-08-31 江苏科技大学 Hardware-in-loop experimental platform and adjusting method of electric control air suspension vehicle height adjusting system

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