CN104786772B - A kind of interconnection type air suspension control device, control system and method thereof - Google Patents
A kind of interconnection type air suspension control device, control system and method thereof Download PDFInfo
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- CN104786772B CN104786772B CN201510180003.2A CN201510180003A CN104786772B CN 104786772 B CN104786772 B CN 104786772B CN 201510180003 A CN201510180003 A CN 201510180003A CN 104786772 B CN104786772 B CN 104786772B
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Abstract
A kind of interconnection type air suspension control device, control system and method thereof, it comprises airsuspension system, air spring vibration reduction device, interconnection type air suspension control system, air spring vibration reduction device comprises: hanger, lower hanger, rubber bag tank skin, air spring chamber, air spring vibration reduction device epicoele, air spring vibration reduction device cavity of resorption, piston, the first check valve, shock absorber outer wall composition. hanger is connected to the top in air spring chamber, the outer rubber bag tank skin that is with in air spring chamber, air spring vibration reduction device epicoele is positioned at the bottom in air spring chamber, check valve is positioned on piston, air spring vibration reduction device cavity of resorption is positioned at the below of piston, it is introduced semi-active suspension technology in interconnected air suspension technology, by significantly promoting the interconnected pattern of alternative interconnected air suspension, reach and can regulate vehicle roll characteristic, can regulate again the effect of vehicle pitching characteristic, thereby ensureing turn inside diameter, starting, when braking ability, the further ride performance of lifting vehicle.
Description
Technical field
The present invention relates to vehicle suspension field, particularly a kind of interconnection type air suspension control device, control system andMethod.
Background technology
In passive suspension technology, in order to improve the anti-inclination performance of vehicle, often by increasing rigidity or the peace of suspensionDress QS obtains; In order to improve the pitching in vehicle launch and when braking, the also sides that adopt the rigidity that increase suspensions moreFormula, and higher suspension rate can make suspension hardening undoubtedly, damages the riding comfort of vehicle. Otherwise, roll just if adoptDegree and the lower suspension of pitch stiffness, though riding comfort can be improved, vehicle turn and on-position under travellingSafety can not get ensureing.
Therefore, initiatively, semi-active suspension technology is more and more applied in vehicle roll rigidity control problem. At presentApplying wider is active lateral stabiliser bar technology, by add motor in QS, changes in real time QSRoll stiffness, thereby the roll characteristics of adjusting vehicle, but this structural manufacturing process cost is higher, and damage the robustness of suspension system;The people such as Jilin University's Guo Konghui are in document " oil gas is coupled the modeling and simulation research of suspension system ", by hydro-pneumatic spring left and right mutuallyConnection, and regulate roll stiffness by controlling interconnected mode switch, the emerging grade of the Li Zhong of Jiangsu University is at paper " Interlinkedairsuspensionsystems:theinfluenceonridecomfortintestingandsimulation》It is interconnected that the air spring of air suspension is carried out side direction by middle proposition, and by controlling the solenoid control air bullet between air springThe connection of spring and disconnection, but above-mentioned two kinds of method control variables are all comparatively single, and only relate to the interconnected state control of flexible member,Do not attempt damping element to carry out interconnected state control, limited to automotive comprehensive performance lifting, to the tune of vehicle pitching characteristicJoint does not also give consideration.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art and provide a kind of interconnection type air suspension control device,Control system and method thereof, it is introduced semi-active suspension technology in interconnected air suspension technology, can be for choosing by significantly promotingThe interconnected pattern of the interconnected air suspension of selecting, reaches and can regulate vehicle roll characteristic, can regulate again the effect of vehicle pitching characteristicReally, and the interconnected state of shock absorber is melted in half ACTIVE CONTROL category, significantly expands adjustment state collection, thereby ensureing vehicleWhen turning, starting, braking ability, the further ride performance of lifting vehicle.
Technical scheme of the present invention is: a kind of interconnection type air suspension control device, it comprises the first air spring vibration reductionDevice, the second air spring vibration reduction device, the 3rd air spring vibration reduction device, the 4th air spring vibration reduction device, the first magnetic valve, the second electricityMagnet valve, the 3rd magnetic valve, the 4th magnetic valve, the 5th magnetic valve, the 6th magnetic valve, pneumatic connecting line is some, the first air bulletSpring shock absorber is connected by the first magnetic valve with the air chamber on the second air spring vibration reduction device top; The 3rd air spring vibration reduction deviceBe connected by the 4th magnetic valve with the air chamber on the 4th air spring vibration reduction device top; The epicoele of the first air spring vibration reduction device withCavity of resorption is connected with epicoele with the cavity of resorption of the second air spring vibration reduction device respectively by the 3rd magnetic valve; The 3rd air spring vibration reduction deviceEpicoele be connected with epicoele with the cavity of resorption of the 4th air spring vibration reduction device respectively by the second magnetic valve with cavity of resorption; The first air bulletThe epicoele of spring shock absorber is connected with epicoele with the cavity of resorption of the 3rd air spring vibration reduction device respectively by the 5th magnetic valve with cavity of resorption; TheThe epicoele of two air spring vibration reduction devices and cavity of resorption by the 6th magnetic valve respectively with the cavity of resorption of the 4th air spring vibration reduction device and upperChamber is connected; Each coupling part all adopts and is threaded.
Described air spring vibration reduction device comprises hanger, lower hanger, rubber bag tank skin, air spring chamber, air spring vibration reductionDevice epicoele, air spring vibration reduction device cavity of resorption, piston, the first check valve, the second check valve, shock absorber outer wall composition. Hanger connectsOn the top in air spring chamber, the outer rubber bag tank skin that is with in air spring chamber, air spring vibration reduction device epicoele is positioned at air springThe bottom in chamber, the first check valve is positioned on piston, and air spring vibration reduction device cavity of resorption is positioned at the below of piston, and lower hanger is positioned at vibration dampingThe below of device outer wall, the second check valve is positioned on piston.
Shock absorber outer wall is cylinder, and shock absorber outer wall can be also tetragonal body, and the outer wall energy of shock absorber of tetragonal body is betterPiston is play the guiding role.
A kind of interconnection type air suspension control control system, it comprise steering wheel angle sensor, accelerator pedal sensor,Brake-pedal-travel sensor, vehicle speed sensor, vehicle-mounted computer, driver module, the first magnetic valve, the second magnetic valve, the 3rd electricityMagnet valve, the 4th magnetic valve, the 5th magnetic valve, the 6th magnetic valve, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th electricityMagnet valve, the 5th magnetic valve, the 6th magnetic valve are actuator module, and steering wheel angle sensor connects vehicle-mounted computer, speed of a motor vehicle sensingDevice, accelerator pedal sensor, brake-pedal-travel sensor are all connected with vehicle-mounted computer respectively, and vehicle-mounted computer connects driving mouldPiece, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, the 5th magnetic valve, the 6th magnetic valve connect respectivelyOn driver module.
Described interconnection type air suspension control flow, comprises the following steps: step S1 is according to driver's control instructionDetermine the driving cycle of vehicle; Step S2 utilizes driver's instruction and the vehicle traveling information decision-making of sensor collection to go out suspensionInterconnected pattern, and solenoid control instruction is sent to driver module, and then air suspension can be adjusted to interconnected accordinglyPattern.
Described interconnected mode decision flow process, comprises the following steps: step S1 detects driver command, judges vehicleDriving cycle, selects normal driving operating mode or cross-country driving operating mode according to driver's wish; Step S2 carries out interconnected patternDecision-making: step S201 utilizes vehicle body sensor to detect the status information in Vehicle Driving Cycle process, as the travel speed of vehicle, oilDoor pedal travel, brake-pedal travel, steering wheel angle information; Step S202 and step S210 select according to the result of step S1The driving cycle of vehicle; Step S203 judges the transport condition of vehicle according to the information in step S201, start to walk, brake,Straight-line travelling, turning; Step S204 and S209 go out the interconnected pattern of suspension according to information decision above; Step S205 and S208The interconnected pattern going out according to decision-making above, generates solenoid control signal; Step S206, according to control signal, generates magnetic valve and drivesMoving voltage; In step S207, magnetic valve opens or closes according to driving voltage, and then can make suspension in the interconnected mould of targetFormula.
Compressed gas chamber in air spring is the flexible member of interconnected air suspension, and gas-filled shock absorber is damping element,Flexible member and shock absorber design for integral type, to reduce taking vehicle body space.
The interconnected pipeline of air spring connects the compressed gas chamber of adjacent vacant air spring, and its middle part is furnished with magnetic valve, electromagnetismValve is opened, gas exchange can occur between compressed gas chamber in interconnected pipeline Suo Lian air spring UNICOM, thereby reduces suspensionRoll stiffness (left and right air spring is interconnected) or pitch stiffness (front and back air spring is interconnected). The interconnected state control of air spring systemTurnkey is drawn together information acquisition system, ECU, executing agency and the holding wire for communication between three. Wherein, information acquisition system bagDraw together steering wheel angle sensor, for collection vehicle direction information; Also comprise and be placed near the running model of meter panel of motor vehicleSelect button, this button is manually handled by driver; Executing agency comprises the magnetic valve in the interconnected pipeline of air spring and drivesDynamic model piece, this driver module can be accepted the control information that ECU transmits, and accordingly to each solenoid valve.
The interconnected pipeline of shock absorber can be realized epicoele and the cavity of resorption UNICOM of adjacent shock absorber, intersects mutually by magnetic valveConnection. The interconnected state control system of shock absorber comprises information acquisition system, ECU, executing agency's three parts, wherein information gathering equallyThe interconnected state control system structure of system and ECU two parts and air spring shares, information fusion, and executing agency comprises and being installed onInterconnected magnetic valve in the interconnected pipeline of shock absorber and corresponding driver module, this driver module can be accepted the control that ECU transmits equallyInformation, and accordingly to each solenoid valve.
A kind of control strategy that is specially adapted for this interconnected state control that the present invention proposes has as shown in table 1 manyPlant interconnected pattern, all can be realized by controlling interconnected magnetic valve switching
The interconnection type air suspension control strategy that the present invention proposes is as follows: in conjunction with driver's control instruction and Vehicle Driving CycleTime information carry out judge online the interconnected pattern of best air suspension, the information that pattern is switched needs is as follows: the speed of a motor vehicle, steering wheelCorner, torque, gas pedal stroke, brake-pedal travel, first divides vehicle operating mode in the process of moving every kindThe interconnected pattern that driving cycle is corresponding is as shown in table 2.
Then vehicle-mounted computer carries out driving cycle judgement according to the various information in driving process, thereby selects to adapt to every kindThe interconnected pattern of suspension of operating mode.
The invention has the beneficial effects as follows: (1) can control the roll stiffness of suspension, thereby can alleviate to a certain extentThe contradiction of vehicle to riding stability and comfortableness; (2) ensure the performance of vehicle under special operation condition (turn, start to walk, brake);(3) whole suspension system adopts air spring and gas-filled shock absorber, reduces a lot, to be conducive to improve whole than the quality of traditional suspensionThe economy of car.
The present invention compared with prior art has following features: (1) the present invention can control the roll stiffness of suspension, therebyCan alleviate to a certain extent the contradiction of vehicle to riding stability and comfortableness; (2) the present invention can ensure that vehicle is specialPerformance under operating mode (turn, start to walk, brake); (3) whole suspension system of the present invention adopts air spring and damper oneChange design, reduce much than the quality of traditional suspension, be beneficial to the economy that improves car load.
Brief description of the drawings
Accompanying drawing 1 is interconnection type airsuspension system structural representation;
Accompanying drawing 2 is air spring vibration reduction device structural representation;
Accompanying drawing 3 is interconnection type air suspension control system structural representation;
Accompanying drawing 4 is interconnection type air suspension control flow chart;
The interconnected mode decision flow chart that accompanying drawing 5 proposes for the present invention;
Accompanying drawing 6 is interconnected patternUnder suspension frame structure schematic diagram.
The upper hanger of 1-; 2-air spring chamber; 3-rubber bag tank skin; 4-shock absorber epicoele; 5-the first check valve; Under 6-shock absorberChamber; Hanger under 7-; 8-damper piston; 9-the second check valve; 10-shock absorber outer wall; 11-the first magnetic valve; 12-the second airSpring cushion; 13-the 3rd magnetic valve; 14-the 4th magnetic valve; 15-the 5th magnetic valve; 16-the 4th air spring vibration reduction device;17-the second magnetic valve; 18-the 3rd air spring vibration reduction device; 19-the 5th magnetic valve; 20-the first air spring vibration reduction device; 21-carSpeed sensor; 22-solenoid valve driving module; 23-vehicle-mounted computer (ECU); 24-steering wheel angle sensor; 25-gas pedalStroke sensor; 26-brake-pedal-travel sensor.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, detailed structure of the present invention is further described.
As shown in drawings: a kind of interconnection type air suspension control device, it comprises the first air spring vibration reduction device 20, secondAir spring vibration reduction device 12, the 3rd air spring vibration reduction device 18, the 4th air spring vibration reduction device 16, the first magnetic valves 11, secondMagnetic valve 17, the 3rd magnetic valve 13, the 4th magnetic valve 15, the 5th magnetic valve 19, the 6th magnetic valve 14, if pneumatic connecting lineDry, the air chamber on the first air spring vibration reduction device 20 and the second air spring vibration reduction device 12 tops connects by the first magnetic valve 11Connect; The air chamber on the 3rd air spring vibration reduction device 18 and the 4th air spring vibration reduction device 16 tops connects by the 4th magnetic valve 15Connect; The epicoele of the first air spring vibration reduction device 20 and cavity of resorption by the 3rd magnetic valve 13 respectively with the second air spring vibration reduction device 12Cavity of resorption be connected with epicoele; The epicoele of the 3rd air spring vibration reduction device 18 and cavity of resorption by the second magnetic valve 17 respectively with the 4th skyThe cavity of resorption of air spring shock absorber 16 is connected with epicoele; The epicoele of the first air spring vibration reduction device 20 and cavity of resorption are by the 5th magnetic valve19 are connected with epicoele with the cavity of resorption of the 3rd air spring vibration reduction device 18 respectively; The epicoele of the second air spring vibration reduction device 12 and cavity of resorptionBe connected with epicoele with the cavity of resorption of the 4th air spring vibration reduction device 16 respectively by the 6th magnetic valve 14; Each coupling part all adopts spiral shellLine connects.
As shown in Figure 2, described air spring vibration reduction device comprises: hanger 1, lower hanger 7, rubber bag tank skin 3, air spring chamber2, air spring vibration reduction device epicoele 4, air spring vibration reduction device cavity of resorption 6, piston 8, the first check valve 5, the second check valve 9, vibration dampingDevice outer wall 10 forms. Hanger 1 is connected to the top in air spring chamber 2, the outer rubber bag tank skin 3 that is with in air spring chamber 2, air bulletSpring shock absorber epicoele 4 is positioned at the bottom in air spring chamber 2, and the first check valve 5 is positioned on piston 8, air spring vibration reduction device cavity of resorption 6Be positioned at the below of piston 8, lower hanger 7 is positioned at the below of shock absorber outer wall 10, and the second check valve 9 is positioned on piston 8.
Shock absorber outer wall 10 is tetragonal body, and shock absorber outer wall 10 can be also cylinder.
As shown in Figure 3, interconnection type air suspension control system, it comprises: steering wheel angle sensor 24, gas pedal passSensor 25, brake-pedal-travel sensor 26, vehicle speed sensor 21), vehicle-mounted computer 23, driver module 22, the first magnetic valve 11,The second magnetic valve 17, the 3rd magnetic valve 13, the 4th magnetic valve 15, the 5th magnetic valve 19, the 6th magnetic valve 14, the first magnetic valves11, the second magnetic valve 17, the 3rd magnetic valve 13, the 4th magnetic valve 15, the 5th magnetic valve 19, the 6th magnetic valve 14 are actuator mouldPiece, steering wheel angle sensor 24 connects vehicle-mounted computer 23, and vehicle speed sensor 21, accelerator pedal sensor 25, brake pedal are capableJourney sensor 26 is all connected with vehicle-mounted computer 23 respectively, and vehicle-mounted computer 23 connects driver module 22, the first magnetic valves 11, secondMagnetic valve 17, the 3rd magnetic valve 13, the 4th magnetic valve 15, the 5th magnetic valve 19, the 6th magnetic valve 14 are connected to driving mouldOn piece 22.
As shown in Figure 4, interconnection type air suspension control flow chart, comprises the following steps: step S1 is according to driver's controlThe driving cycle of vehicle is determined in instruction processed; Step S2 utilizes driver's instruction and the vehicle traveling information decision-making that sensor gathersGo out the interconnected pattern of suspension, and solenoid control instruction is sent to driver module, and then air suspension can be adjusted to correspondingInterconnected pattern.
As shown in Figure 5, interconnected mode decision flow chart, comprises the following steps: step S1 detects driver command, judgesThe driving cycle of vehicle, selects normal driving operating mode or cross-country driving operating mode according to driver's wish; Step S2 carries out mutuallyConnection mode decision: step S201 utilizes vehicle body sensor to detect the status information in Vehicle Driving Cycle process, as travelling of vehicleSpeed, gas pedal stroke, brake-pedal travel, steering wheel angle information; Step S202 and step S210 are according to step S1'sResult is selected the driving cycle of vehicle; Step S203 judges the transport condition of vehicle according to the information in step S201, riseStep, braking, straight-line travelling, turning; Step S204 and S209 go out the interconnected pattern of suspension according to information decision above; StepThe interconnected pattern that S205 and S208 go out according to decision-making above, generates solenoid control signal; Step S206 is according to control signal, rawBecome solenoid-driven voltage; In step S207, magnetic valve opens or closes according to driving voltage, and then can make suspension in orderMark interconnected pattern.
Interconnection type airsuspension system is pneumatic system completely, comprises air spring, the interconnected pipeline of air spring, airThe interconnected state control system of spring, the interconnected pipeline of shock absorber, interconnected state control system five parts of shock absorber.
Compressed gas chamber in air spring is the flexible member of interconnected air suspension, and gas-filled shock absorber is damping element,Flexible member and shock absorber design for integral type, to reduce taking vehicle body space.
The interconnected pipeline of air spring connects the compressed gas chamber of adjacent vacant air spring, and its middle part is furnished with magnetic valve, electromagnetismValve is opened, gas exchange can occur between compressed gas chamber in interconnected pipeline Suo Lian air spring UNICOM, thereby reduces suspensionRoll stiffness (left and right air spring is interconnected) or pitch stiffness (front and back air spring is interconnected). The interconnected state control of air spring systemTurnkey is drawn together information acquisition system, ECU, executing agency and the holding wire for communication between three. Wherein, information acquisition system bagDraw together steering wheel angle sensor, for collection vehicle direction information; Also comprise and be placed near the running model of meter panel of motor vehicleSelect button, this button is manually handled by driver; Executing agency comprises the magnetic valve in the interconnected pipeline of air spring and drivesDynamic model piece, this driver module can be accepted the control information that ECU transmits, and accordingly to each solenoid valve.
The interconnected pipeline of shock absorber can be realized epicoele and the cavity of resorption UNICOM of adjacent shock absorber, intersects mutually by magnetic valveConnection. The interconnected state control system of shock absorber comprises information acquisition system, ECU, executing agency's three parts, wherein information gathering equallyThe interconnected state control system structure of system and ECU two parts and air spring shares, information fusion, and executing agency comprises and being installed onInterconnected magnetic valve in the interconnected pipeline of shock absorber and corresponding driver module, this driver module can be accepted the control that ECU transmits equallyInformation, and accordingly to each solenoid valve.
A kind of control strategy that is specially adapted for this interconnected state control that the present invention proposes has as shown in table 1 manyPlant interconnected pattern, all can be realized by controlling interconnected magnetic valve switching
The interconnection type air suspension control strategy that the present invention proposes is as follows: in conjunction with driver's control instruction and Vehicle Driving CycleTime information carry out judge online the interconnected pattern of best air suspension, the information that pattern is switched needs is as follows: the speed of a motor vehicle, steering wheelCorner, torque, gas pedal stroke, brake-pedal travel. First vehicle operating mode is in the process of moving divided to every kindThe interconnected pattern that driving cycle is corresponding is as shown in table 2.
Vehicle-mounted computer carries out driving cycle judgement according to the various information in driving process, thereby selects to adapt to every kind of operating modeThe interconnected pattern of suspension. The invention has the beneficial effects as follows: (1) can control the roll stiffness of suspension, thus can be in certain journeyOn degree, alleviate the contradiction of vehicle to riding stability and comfortableness; (2) ensure that vehicle is special operation condition (turn, start to walk, brake)Under performance; (3) whole suspension system adopts air spring and gas-filled shock absorber, reduces a lot, to have than the quality of traditional suspensionBe beneficial to the economy that improves car load.
Operation principle of the present invention and using method are: operation principle of the present invention and the course of work are mainly divided into several as followsIndividual step: step 1: the information gathering of driving cycle and operating mode judgement. This step requires each of interconnected state control system defeatedEnter end, will carry out driving cycle and judge that necessary information is passed to ECU, determines current driving operating mode by ECU. This step needsThe information gathering has: the selected driving mode of driver, automobile turning wheel corner information. For example, if driver select beCross-country pattern, and steering wheel for vehicle rotary angle transmitter 24 provides a larger steering wheel signal, these two signals is passedBe handed to after ECU, ECU can judge when vehicle in front is in cross-country, turning operating mode. Step 2: interconnected according to driving cycle Decision ControlState. According to the strategy of Decision Control shown in table 1, ECU by the driving cycle decision-making air spring judging according to step 1 with subtractShake device should in interconnected state. For example, ECU judgement is when vehicle in front is in cross-country, turning operating mode, and according to table 2, decision-making is worked asBefore should be in " interconnected pattern" (as shown in Figure 6), air spring side direction is interconnected, damper side direction is cross interconnected. Step 3:According to the interconnected state of decision-making, make air spring, the interconnected state of shock absorber executing agency carry out interconnected state control. This stepRealized by applying the different signals of telecommunication to different magnetic valves. For example,, for carrying out " interconnected pattern", need make the first electromagnetismValve 11, the second magnetic valve 17, the 3rd magnetic valve 13, the 4th magnetic valve 15 are opened, and the 5th magnetic valve 19, the 6th magnetic valve 14 closeClose. After the solenoid control signal that air spring, the interconnected state control of shock absorber driver module are accepted to be transmitted by ECU, only give theOne magnetic valve 11, the second magnetic valve 17, the 3rd magnetic valve 13, the 4th magnetic valve 15 provide driving voltage, and suspension is realized " interconnectedPattern". According to Fig. 6, the air spring chamber of the left and right sides of front suspension and rear suspension is connected, and the integral rigidity of suspension obtainsTo reducing, the comfortableness of vehicle under cross-country pattern is improved; Meanwhile, the epicoele of the left side shock absorber of fore suspension and rear suspension with underThe cavity of resorption of chamber and right side shock absorber and epicoele have obtained cross interconnected, and shock absorber, by cross interconnected, improved vehicle and turnedTime anti-inclination performance.
Claims (7)
1. an interconnection type air suspension control device, is characterized in that: comprise the first air spring vibration reduction device, the second air springShock absorber, the 3rd air spring vibration reduction device, the 4th air spring vibration reduction device, the first magnetic valve, the second magnetic valve, the 3rd electromagnetismValve, the 4th magnetic valve, the 5th magnetic valve, the gentle pipeline that is dynamically connected of the 6th magnetic valve are some, the first air spring vibration reduction device andThe air chamber on two air spring vibration reduction device tops connects by the first magnetic valve; The 3rd air spring vibration reduction device and the 4th air bulletThe air chamber on spring shock absorber top connects by the 4th magnetic valve; The epicoele of the first air spring vibration reduction device and cavity of resorption are by the 3rdMagnetic valve is connected with epicoele with the cavity of resorption of the second air spring vibration reduction device respectively; The epicoele of the 3rd air spring vibration reduction device and cavity of resorptionBe connected with epicoele with the cavity of resorption of the 4th air spring vibration reduction device respectively by the second magnetic valve; The first air spring vibration reduction device upperChamber is connected with epicoele with the cavity of resorption of the 3rd air spring vibration reduction device respectively by the 5th magnetic valve with cavity of resorption; The second air spring subtractsThe epicoele of device of shaking is connected with epicoele with the cavity of resorption of the 4th air spring vibration reduction device respectively by the 6th magnetic valve with cavity of resorption; Each connectionPart all adopts and is threaded.
2. a kind of interconnection type air suspension control device according to claim 1, is characterized in that: air spring vibration reduction device bagDraw together hanger, lower hanger, rubber bag tank skin, air spring chamber, air spring vibration reduction device epicoele, air spring vibration reduction device cavity of resorption, piston,The first check valve, the second check valve and shock absorber outer wall, hanger is connected to the top in air spring chamber, the periphery in air spring chamberHave rubber bag tank skin, air spring vibration reduction device epicoele is positioned at the bottom in air spring chamber, and the first check valve is positioned on piston, air bulletSpring shock absorber cavity of resorption is positioned at the below of piston, and lower hanger is positioned at the below of shock absorber outer wall, and the second check valve is positioned on piston.
3. a kind of interconnection type air suspension control device according to claim 2, is characterized in that: shock absorber outer wall is four directionsBody.
4. an interconnection type air suspension control method, comprises the following steps: step S1 determines according to driver's control instructionThe driving cycle of vehicle; Step S2 utilizes driver's instruction and the vehicle traveling information decision-making of sensor collection to go out the mutual of suspensionGang mould formula, and solenoid control instruction is sent to driver module, and then air suspension can be adjusted to corresponding interconnected pattern;
Sensor comprises steering wheel angle sensor, accelerator pedal sensor, brake-pedal-travel sensor, vehicle speed sensor,Magnetic valve comprises the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, the 5th magnetic valve and the 6th magnetic valve,The first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, the 5th magnetic valve, the 6th magnetic valve are actuator mouldPiece, steering wheel angle sensor connects vehicle-mounted computer, vehicle speed sensor, accelerator pedal sensor, brake-pedal-travel sensorAll be connected with vehicle-mounted computer respectively, vehicle-mounted computer connects driver module, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve,The 4th magnetic valve, the 5th magnetic valve, the 6th magnetic valve are connected on driver module;
The interconnected pipeline of shock absorber of interconnection type air suspension can be realized epicoele and the cavity of resorption UNICOM of adjacent shock absorber, passes through magnetic valveCarry out cross interconnected; The interconnected state control system of shock absorber comprises information acquisition system, ECU, executing agency's three parts, Qi ZhongxinBreath acquisition system and ECU two parts and the interconnected state control system structure of air spring share, information fusion, and executing agency comprisesBe installed on interconnected magnetic valve and corresponding driver module in the interconnected pipeline of shock absorber, this driver module can be accepted equally ECU and transmitControl information, and accordingly to each solenoid valve;
Interconnection type air suspension comprises six kinds of interconnected patterns, is respectively I: air spring side direction is interconnected, and damper side direction is intersected mutuallyConnection; II: air spring side direction is interconnected, damper is longitudinally cross interconnected; III: air spring side direction is interconnected, damper is not interconnected;IV: air spring is not interconnected, damper side direction is cross interconnected; V: air spring is not interconnected, damper is longitudinally cross interconnected; VI:Air spring is not interconnected, and damper is not interconnected.
5. interconnection type air suspension control method according to claim 4, is characterized in that: step S2 carries out the tool of interconnected patternBody decision is: step S201 utilizes vehicle body sensor to detect the status information in Vehicle Driving Cycle process, comprises travelling of vehicleSpeed, gas pedal stroke, brake-pedal travel and steering wheel angle information; Step S202 and step S210 are according to step S1'sResult is selected the driving cycle of vehicle; Step S203 judges the transport condition of vehicle according to the information in step S201, riseStep, braking, straight-line travelling, turning; Step S204 and S209 go out the interconnected pattern of suspension according to information decision above; StepThe interconnected pattern that S205 and S208 go out according to decision-making above, generates solenoid control signal; Step S206 is according to control signal, rawBecome solenoid-driven voltage; In step S207, magnetic valve opens or closes according to driving voltage, and then can make suspension in orderMark interconnected pattern.
6. interconnection type air suspension control method according to claim 4, is characterized in that: the interconnected state control of air spring systemTurnkey is drawn together information acquisition system, ECU, executing agency and the holding wire for communication between three, wherein, and information acquisition system bagDraw together steering wheel angle sensor, for collection vehicle direction information; Also comprise and be placed near the running model of meter panel of motor vehicleSelect button, this button is manually handled by driver; Executing agency comprises the magnetic valve in the interconnected pipeline of air spring and drivesDynamic model piece, this driver module can be accepted the control information that ECU transmits, and accordingly to each solenoid valve.
7. interconnection type air suspension control method according to claim 4, is characterized in that: interconnection type air suspension control strategyAs follows: the information during in conjunction with driver's control instruction and Vehicle Driving Cycle carries out judging online the interconnected mould of best air suspensionFormula, it is as follows that pattern is switched the information needing: the speed of a motor vehicle, steering wheel angle, torque, gas pedal stroke and brake-pedal travel, headFirst vehicle operating mode is in the process of moving divided, then vehicle-mounted computer is gone according to the various information in driving processSail operating mode judgement, thereby select to adapt to the interconnected pattern of suspension of every kind of operating mode;
Driving cycle is divided into road running mode and non-road running mode, and every kind of driving cycle includes starting or braking, turnsCurved, three kinds of operations of straight-line travelling, wherein for the corresponding interconnected pattern V of the starting under road running mode or brake operating, turningOperate corresponding interconnected pattern IV, the corresponding interconnected pattern VI of straight-line travelling operation; For the starting under non-road running mode or systemThe corresponding interconnected mode II of moving operation, the corresponding interconnected modes I of operation of turning, the corresponding interconnected mode III of straight-line travelling operation.
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| CN107953736B (en) * | 2016-10-14 | 2024-02-27 | 宇通客车股份有限公司 | Vehicle and interconnection type air damper module and air damper for suspension thereof |
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