CN104786772A - Interlinked air suspension control device, system and method - Google Patents
Interlinked air suspension control device, system and method Download PDFInfo
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- CN104786772A CN104786772A CN201510180003.2A CN201510180003A CN104786772A CN 104786772 A CN104786772 A CN 104786772A CN 201510180003 A CN201510180003 A CN 201510180003A CN 104786772 A CN104786772 A CN 104786772A
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Abstract
The invention discloses an interlinked air suspension control device, system and method. The pinterlinked air suspension control device comprises an air suspension system, air spring shock absorbers and the interlinked air suspension control system. Each air spring shock absorber comprises a lifting lug, a lower lifting lug, rubber capsule skin, an air spring cavity, an upper air spring shock absorber cavity, a lower air spring shock absorber cavity, a piston, a first one-way valve and a shock absorber outer wall, wherein the lifting lug is connected to the upper portion of the air spring cavity, the rubber capsule skin is arranged on the periphery of the air spring cavity, the upper air spring shock absorber cavity is located on the lower portion of the air spring cavity, the one-way valve is located on the piston, and the lower air spring shock absorber cavity is located below the piston. According to the interlinked air suspension control device, system and method, the semi-active suspension technology is introduced into the interlinked air suspension technology, the effects of adjusting the vehicle sidesway characteristic and the vehicle pitching characteristic can be achieved by greatly improving the optional interlinked mode of interlinked air suspensions, and thus the riding comfort of a vehicle can be further improved while the performance of steering, starting and braking of the vehicle is met.
Description
Technical field
The present invention relates to vehicle suspension field, particularly a kind of interconnection type air suspension control setup, control system and method thereof.
Background technology
In passive suspension technology, in order to improve the anti-rolling capability of vehicle, obtain often through the rigidity or installation Panhard rod increasing suspension; In order to improve vehicle launch and pitching during braking, the also mode adopting the rigidity increasing suspension more, and higher suspension rate can make suspension hardening undoubtedly, damages the travelling comfort of vehicle.Otherwise according to roll rate and the lower suspension of pitch stiffness, though travelling comfort can be improved, vehicle is being turned and driving safety under braking mode can not get ensureing.
Therefore, initiatively, semi-active suspension technology is more and more applied in vehicle roll stiffness reliability problem.What current application was wider is active lateral stabilizer rod technology, by adding motor in Panhard rod, change Panhard rod roll rate in real time, thus regulate the roll characteristics of 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 " the modeling and simulation research of the coupling suspension system of oil gas ", by interconnected for hydro-pneumatic spring left and right, and by controlling interconnect mode switch-mode regulation roll rate, it is interconnected that the air bellow of air suspension is carried out side direction by the proposition in paper " Interlinked air suspension systems:the influence on ride comfort in testing and simulation " of the emerging grade of Jiangsu University Li Zhong, and pass through connection and the disconnection of the solenoid control air bellow controlled between air bellow, but above-mentioned two kinds of method control variable are all comparatively single, and only relate to the interconnected state control of elastic element, do not attempt carrying out interconnected state control to damping element, promote limited to automotive comprehensive performance, also consideration is not given to the adjustment of vehicle pitch characteristic.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art and a kind of interconnection type air suspension control setup is provided, control system and method thereof, semi-active suspension technology is introduced in interconnected air suspension technology by it, by significantly promoting the interconnect mode of alternative interconnected air suspension, reach and can regulate vehicle roll characteristic, the effect of vehicle pitch characteristic can be regulated again, and the interconnected state of shock absorber is melted in semi-active control category, significantly expand adjustment state collection, thus at guarantee turn inside diameter, starting, while deceleration and stopping performance, the riding comfort of further lifting vehicle.
Technical scheme of the present invention is: a kind of interconnection type air suspension control setup, it comprises the first air spring vibration reduction device, the second air spring vibration reduction device, the 3rd air spring vibration reduction device, the 4th air spring vibration reduction device, first electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, pneumatic link road is some, and the first air spring vibration reduction device is connected by the first electromagnetic valve with the air chamber on the second air spring vibration reduction device top; 3rd air spring vibration reduction device is connected by the 4th electromagnetic valve with the air chamber on the 4th air spring vibration reduction device top; The epicoele of the first air spring vibration reduction device is connected with epicoele with the cavity of resorption of the second air spring vibration reduction device by the 3rd electromagnetic valve respectively with cavity of resorption; The epicoele of the 3rd air spring vibration reduction device is connected with epicoele with the cavity of resorption of the 4th air spring vibration reduction device by the second electromagnetic valve respectively with cavity of resorption; The epicoele of the first air spring vibration reduction device is connected with epicoele with the cavity of resorption of the 3rd air spring vibration reduction device by the 5th electromagnetic valve respectively with cavity of resorption; The epicoele of the second air spring vibration reduction device is connected with epicoele with the cavity of resorption of the 4th air spring vibration reduction device by the 6th electromagnetic valve respectively with cavity of resorption; Each connecting bridge all adopts and is threaded.
Described air spring vibration reduction device comprises hanger, lower hanger, rubber bag tank skin, air bellow chamber, air spring vibration reduction device epicoele, air spring vibration reduction device cavity of resorption, piston, the first check valve, the second check valve, shock absorber outer wall composition.Hanger is connected to the top in air bellow chamber, the outer of air bellow chamber is with rubber bag tank skin, air spring vibration reduction device epicoele is positioned at the bottom in air bellow chamber, first check valve is positioned on piston, air spring vibration reduction device cavity of resorption is positioned at the below of piston, lower hanger is positioned at the below of shock absorber outer wall, and the second check valve is positioned on piston.
Shock absorber outer wall is cylinder, and shock absorber outer wall also can be tetragonal body, and the shock absorber outer wall of tetragonal body can better play the guiding role to piston.
A kind of interconnection type air suspension controls control system, it comprises steering wheel angle sensor, accelerator pedal sensor, brake-pedal-travel sensor, car speed sensor, vehicle-mounted computer, driver module, first electromagnetic valve, second electromagnetic valve, 3rd electromagnetic valve, 4th electromagnetic valve, 5th electromagnetic valve, 6th electromagnetic valve, first electromagnetic valve, second electromagnetic valve, 3rd electromagnetic valve, 4th electromagnetic valve, 5th electromagnetic valve, 6th electromagnetic valve is actuator module, steering wheel angle sensor connects vehicle-mounted computer, car speed sensor, accelerator pedal sensor, brake-pedal-travel sensor is connected with vehicle-mounted computer all respectively, vehicle-mounted computer connects driver module, first electromagnetic valve, second electromagnetic valve, 3rd electromagnetic valve, 4th electromagnetic valve, 5th electromagnetic valve, 6th electromagnetic valve is connected on driver module.
Described interconnection type air suspension control flow, comprises the following steps: step S1 is according to the driving cycle of the control command determination vehicle of chaufeur; Step S2 utilizes the vehicle traveling information decision-making of the instruction of chaufeur and sensor collection to go out the interconnect mode of suspension, and solenoid control instruction is sent to driver module, and then air suspension can be adjusted to corresponding interconnect mode.
Described interconnect mode judges flow process, comprises the following steps: step S1 detects driver command, judges the driving cycle of vehicle, namely selects normal driving operating mode or cross-country driving operating mode according to the wish of chaufeur; Step S2 carries out interconnect mode decision-making: step S201 utilizes vehicle body sensor to detect status information in vehicle travel process, as moving velocity, accelerator pedal stroke, brake-pedal travel, the steering wheel angle information of vehicle; Step S202 and step S210 selects the driving cycle of vehicle according to the result of step S1; Step S203 judges the motoring condition of vehicle according to the information in step S201, namely start to walk, brake, straight-line travelling, turning; Step S204 and S209 goes out the interconnect mode of suspension according to information decision above; The interconnect mode that step S205 and S208 goes out according to decision-making above, generates solenoid control signal; Step S206, according to control signal, generates solenoid-driven voltage; In step S207, electromagnetic valve opens or closes according to driving voltage, and then suspension can be made to be in target interconnect mode.
Compressed gas chamber in air bellow is the elastic element of interconnected air suspension, and gas-filled shock absorber is damping element, and elastic element and shock absorber design, to reduce taking vehicle body space for integral type.
Air bellow interconnecting pipes connects the compressed gas chamber of adjacent vacant gas spring, electromagnetic valve is furnished with in the middle part of it, electromagnetic valve is opened, then interconnecting pipes Suo Lian air bellow UNICOM, can gas exchanges be there is between compressed gas chamber, thus reduce roll rate (left and right air bellow is interconnected) or the pitch stiffness (front and back air bellow is interconnected) of suspension.The interconnected state control system of air bellow comprises information acquisition system, ECU, actuating unit and the signal wire (SW) for communication between three.Wherein, information acquisition system comprises steering wheel angle sensor, for collection vehicle direction information; Also comprise the running model select button be placed near meter panel of motor vehicle, this button is by chaufeur manual control; Actuating unit comprises electromagnetic valve in air bellow interconnecting pipes and driver module, and this driver module can accept the control information that ECU transmits, and accordingly to each solenoid valve.
Shock absorber interconnecting pipes can realize epicoele and the cavity of resorption UNICOM of adjacent shock absorber, is undertaken cross interconnected by electromagnetic valve.The interconnected state control system of shock absorber comprises information acquisition system, ECU, actuating unit three part equally, wherein information acquisition system and ECU two parts and the interconnected state control system structure of air bellow share, information fusion, actuating unit comprises and is installed on interconnected electromagnetic valve in shock absorber interconnecting pipes and corresponding driver module, this driver module can accept the control information that ECU transmits equally, and accordingly to each solenoid valve.
A kind of control policy being specially adapted for this interconnected state control that the present invention proposes has multiple interconnect mode as shown in table 1, is all realized by controlling interconnected electromagnetic valve opening and closing
The interconnection type air suspension control policy that the present invention proposes is as follows: information when control command and vehicle in conjunction with chaufeur travel carries out the online air suspension interconnect mode judging the best, it is as follows that pattern switches the information needed: the speed of a motor vehicle, steering wheel angle, torque, accelerator pedal stroke, brake-pedal travel, first vehicle operating mode in the process of moving divided, the interconnect mode that often kind of 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, thus selects the suspension interconnect mode adapting to often kind of operating mode.
The invention has the beneficial effects as follows: (1) can control the roll rate of suspension, thus the contradiction of vehicle to riding stability and traveling comfort can be alleviated to a certain extent; (2) performance of vehicle under special operation condition (turn, start to walk, brake) is ensured; (3) whole suspension system adopts air bellow and gas-filled shock absorber, reduces a lot than the quality of traditional suspension, is conducive to the economy improving car load.
The present invention compared with prior art has following features: (1) the present invention can control the roll rate of suspension, thus can alleviate the contradiction of vehicle to riding stability and traveling comfort to a certain extent; (2) the present invention can ensure the performance of vehicle under special operation condition (turn, start to walk, brake); (3) whole suspension system of the present invention adopts air bellow and bumper integrated design, reduces a lot, be beneficial to the economy improving car load than the quality of traditional suspension.
Accompanying drawing explanation
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 interconnect mode decision flow chart that accompanying drawing 5 proposes for the present invention;
Accompanying drawing 6 is interconnect mode
under suspension frame structure schematic diagram.
The upper hanger of 1-; 2-air bellow chamber; 3-rubber bag tank skin; 4-shock absorber epicoele; 5-first check valve; 6-shock absorber cavity of resorption; Hanger under 7-; 8-damper piston; 9-second check valve; 10-shock absorber outer wall; 11-first electromagnetic valve; 12-second air spring vibration reduction device; 13-the 3rd electromagnetic valve; 14-the 4th electromagnetic valve; 15-the 5th electromagnetic valve; 16-the 4th air spring vibration reduction device; 17-second electromagnetic valve; 18-the 3rd air spring vibration reduction device; 19-the 5th electromagnetic valve; 20-first air spring vibration reduction device; 21-car speed sensor; 22-solenoid valve driving module; 23-vehicle-mounted computer (ECU); 24-steering wheel angle sensor; 25-accelerator pedal stroke sensor; 26-brake-pedal-travel sensor.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, detailed construction of the present invention is further described.
As shown in drawings: a kind of interconnection type air suspension control setup, it comprises the first air spring vibration reduction device 20, second air spring vibration reduction device 12, the 3rd air spring vibration reduction device 18, the 4th air spring vibration reduction device 16, first electromagnetic valve 11, second electromagnetic valve 17, the 3rd electromagnetic valve 13, the 4th electromagnetic valve 15, the 5th electromagnetic valve 19, the 6th electromagnetic valve 14, pneumatic link road is some, and the first air spring vibration reduction device 20 is connected by the first electromagnetic valve 11 with the air chamber on the second air spring vibration reduction device 12 top; 3rd air spring vibration reduction device 18 is connected by the 4th electromagnetic valve 15 with the air chamber on the 4th air spring vibration reduction device 16 top; The epicoele of the first air spring vibration reduction device 20 is connected with epicoele with the cavity of resorption of the second air spring vibration reduction device 12 by the 3rd electromagnetic valve 13 respectively with cavity of resorption; The epicoele of the 3rd air spring vibration reduction device 18 is connected with epicoele with the cavity of resorption of the 4th air spring vibration reduction device 16 by the second electromagnetic valve 17 respectively with cavity of resorption; The epicoele of the first air spring vibration reduction device 20 is connected with epicoele with the cavity of resorption of the 3rd air spring vibration reduction device 18 by the 5th electromagnetic valve 19 respectively with cavity of resorption; The epicoele of the second air spring vibration reduction device 12 is connected with epicoele with the cavity of resorption of the 4th air spring vibration reduction device 16 by the 6th electromagnetic valve 14 respectively with cavity of resorption; Each connecting bridge all adopts and is threaded.
As shown in Figure 2, described air spring vibration reduction device comprises: hanger 1, lower hanger 7, rubber bag tank skin 3, air bellow chamber 2, air spring vibration reduction device epicoele 4, air spring vibration reduction device cavity of resorption 6, piston 8, first check valve 5, second check valve 9, shock absorber outer wall 10 form.Hanger 1 is connected to the top in air bellow chamber 2, the outer of air bellow chamber 2 is with rubber bag tank skin 3, air spring vibration reduction device epicoele 4 is positioned at the bottom in air bellow chamber 2, first check valve 5 is positioned on piston 8, air spring vibration reduction device cavity of resorption 6 is 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 also can be cylinder.
As shown in Figure 3, interconnection type air suspension control system, it comprises: steering wheel angle sensor 24, accelerator pedal sensor 25, brake-pedal-travel sensor 26, car speed sensor 21), vehicle-mounted computer 23, driver module 22, first electromagnetic valve 11, second electromagnetic valve 17, 3rd electromagnetic valve 13, 4th electromagnetic valve 15, 5th electromagnetic valve 19, 6th electromagnetic valve 14, first electromagnetic valve 11, second electromagnetic valve 17, 3rd electromagnetic valve 13, 4th electromagnetic valve 15, 5th electromagnetic valve 19, 6th electromagnetic valve 14 is actuator module, steering wheel angle sensor 24 connects vehicle-mounted computer 23, car speed sensor 21, accelerator pedal sensor 25, brake-pedal-travel sensor 26 is connected with vehicle-mounted computer 23 all respectively, vehicle-mounted computer 23 connects driver module 22, first electromagnetic valve 11, second electromagnetic valve 17, 3rd electromagnetic valve 13, 4th electromagnetic valve 15, 5th electromagnetic valve 19, 6th electromagnetic valve 14 is connected on driver module 22.
As shown in Figure 4, interconnection type air suspension control flow chart, comprises the following steps: step S1 is according to the driving cycle of the control command determination vehicle of chaufeur; Step S2 utilizes the vehicle traveling information decision-making of the instruction of chaufeur and sensor collection to go out the interconnect mode of suspension, and solenoid control instruction is sent to driver module, and then air suspension can be adjusted to corresponding interconnect mode.
As shown in Figure 5, interconnect mode decision flow chart, comprises the following steps: step S1 detects driver command, judges the driving cycle of vehicle, namely selects normal driving operating mode or cross-country driving operating mode according to the wish of chaufeur; Step S2 carries out interconnect mode decision-making: step S201 utilizes vehicle body sensor to detect status information in vehicle travel process, as moving velocity, accelerator pedal stroke, brake-pedal travel, the steering wheel angle information of vehicle; Step S202 and step S210 selects the driving cycle of vehicle according to the result of step S1; Step S203 judges the motoring condition of vehicle according to the information in step S201, namely start to walk, brake, straight-line travelling, turning; Step S204 and S209 goes out the interconnect mode of suspension according to information decision above; The interconnect mode that step S205 and S208 goes out according to decision-making above, generates solenoid control signal; Step S206, according to control signal, generates solenoid-driven voltage; In step S207, electromagnetic valve opens or closes according to driving voltage, and then suspension can be made to be in target interconnect mode.
Interconnection type airsuspension system is pneumatic system completely, comprises air bellow, air bellow interconnecting pipes, the interconnected state control system of air bellow, shock absorber interconnecting pipes, shock absorber interconnected state control system five part.
Compressed gas chamber in air bellow is the elastic element of interconnected air suspension, and gas-filled shock absorber is damping element, and elastic element and shock absorber design, to reduce taking vehicle body space for integral type.
Air bellow interconnecting pipes connects the compressed gas chamber of adjacent vacant gas spring, electromagnetic valve is furnished with in the middle part of it, electromagnetic valve is opened, then interconnecting pipes Suo Lian air bellow UNICOM, can gas exchanges be there is between compressed gas chamber, thus reduce roll rate (left and right air bellow is interconnected) or the pitch stiffness (front and back air bellow is interconnected) of suspension.The interconnected state control system of air bellow comprises information acquisition system, ECU, actuating unit and the signal wire (SW) for communication between three.Wherein, information acquisition system comprises steering wheel angle sensor, for collection vehicle direction information; Also comprise the running model select button be placed near meter panel of motor vehicle, this button is by chaufeur manual control; Actuating unit comprises electromagnetic valve in air bellow interconnecting pipes and driver module, and this driver module can accept the control information that ECU transmits, and accordingly to each solenoid valve.
Shock absorber interconnecting pipes can realize epicoele and the cavity of resorption UNICOM of adjacent shock absorber, is undertaken cross interconnected by electromagnetic valve.The interconnected state control system of shock absorber comprises information acquisition system, ECU, actuating unit three part equally, wherein information acquisition system and ECU two parts and the interconnected state control system structure of air bellow share, information fusion, actuating unit comprises and is installed on interconnected electromagnetic valve in shock absorber interconnecting pipes and corresponding driver module, this driver module can accept the control information that ECU transmits equally, and accordingly to each solenoid valve.
A kind of control policy being specially adapted for this interconnected state control that the present invention proposes has multiple interconnect mode as shown in table 1, is all realized by controlling interconnected electromagnetic valve opening and closing
The interconnection type air suspension control policy that the present invention proposes is as follows: information when control command and vehicle in conjunction with chaufeur travel carries out the online air suspension interconnect mode judging the best, it is as follows that pattern switches the information needed: the speed of a motor vehicle, steering wheel angle, torque, accelerator pedal stroke, brake-pedal travel.First vehicle operating mode in the process of moving divided, the interconnect mode that often kind of 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, thus selects the suspension interconnect mode adapting to often kind of operating mode.The invention has the beneficial effects as follows: (1) can control the roll rate of suspension, thus the contradiction of vehicle to riding stability and traveling comfort can be alleviated to a certain extent; (2) performance of vehicle under special operation condition (turn, start to walk, brake) is ensured; (3) whole suspension system adopts air bellow and gas-filled shock absorber, reduces a lot than the quality of traditional suspension, is conducive to the economy improving car load.
Principle of work of the present invention and using method are: principle of work of the present invention and working process are mainly divided into following several step: step one: the information acquisition of driving cycle and operating mode judge.This step requires each input end of interconnected state control system, will carry out driving cycle and judge that necessary information is passed to ECU, and determine current driving operating mode by ECU.The information that this step need gather has: the driving mode selected by chaufeur, automobile turning wheel corner information.Such as, if chaufeur selects is cross-country pattern, and steering wheel for vehicle rotary angle transmitter 24 provides a larger hand-wheel signal, then by after these two signal transmission to ECU, ECU can judge that Current vehicle is in cross-country, turning operating mode.Step 2: according to the interconnected state of driving cycle Decision Control.According to the strategy of Decision Control shown in table 1, the interconnected state that the driving cycle decision-making air bellow judged according to step one and shock absorber should be in by ECU.Such as, ECU judges that Current vehicle is in cross-country, turning operating mode, then according to table 2, decision-making is current should be in " interconnect mode
" (as shown in Figure 6), namely air bellow side direction is interconnected, bumper side direction is cross interconnected.Step 3: according to the interconnected state of decision-making, makes air bellow, shock absorber interconnected state actuating unit perform interconnected state and controls.This step is realized by applying different electric signal to different electromagnetic valve.Such as, for performing " interconnect mode
", the first electromagnetic valve 11, second electromagnetic valve 17, the 3rd electromagnetic valve 13, the 4th electromagnetic valve 15 need be made to open, and the 5th electromagnetic valve 19, the 6th electromagnetic valve 14 are closed.After air bellow, shock absorber interconnected state control driver module accepts the solenoid control signal transmitted by ECU, provide driving voltage only to the first electromagnetic valve 11, second electromagnetic valve 17, the 3rd electromagnetic valve 13, the 4th electromagnetic valve 15, then suspension realizes " interconnect mode
".According to Fig. 6, the air bellow chamber of the left and right sides of front suspension and rear suspension is connected, then the integral rigidity of suspension is reduced, and the traveling comfort of vehicle under cross-country pattern is improved; Meanwhile, the epicoele of the left side shock absorber of fore suspension and rear suspension and the cavity of resorption of cavity of resorption and right side shock absorber and epicoele obtain cross interconnected, and namely shock absorber is cross interconnected, improve the anti-rolling capability of vehicle when turning.
Claims (9)
1. an interconnection type air suspension control setup, it is characterized in that: comprise the first air spring vibration reduction device, the second air spring vibration reduction device, the 3rd air spring vibration reduction device, the 4th air spring vibration reduction device, the first electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, pneumatic link road are some, the first air spring vibration reduction device is connected by the first electromagnetic valve with the air chamber on the second air spring vibration reduction device top; 3rd air spring vibration reduction device is connected by the 4th electromagnetic valve with the air chamber on the 4th air spring vibration reduction device top; The epicoele of the first air spring vibration reduction device is connected with epicoele with the cavity of resorption of the second air spring vibration reduction device by the 3rd electromagnetic valve respectively with cavity of resorption; The epicoele of the 3rd air spring vibration reduction device is connected with epicoele with the cavity of resorption of the 4th air spring vibration reduction device by the second electromagnetic valve respectively with cavity of resorption; The epicoele of the first air spring vibration reduction device is connected with epicoele with the cavity of resorption of the 3rd air spring vibration reduction device by the 5th electromagnetic valve respectively with cavity of resorption; The epicoele of the second air spring vibration reduction device is connected with epicoele with the cavity of resorption of the 4th air spring vibration reduction device by the 6th electromagnetic valve respectively with cavity of resorption; Each connecting bridge all adopts and is threaded.
2. a kind of interconnection type air suspension control setup according to claim 1, it is characterized in that: air spring vibration reduction device comprises hanger, lower hanger, rubber bag tank skin, air bellow chamber, air spring vibration reduction device epicoele, air spring vibration reduction device cavity of resorption, piston, first check valve, second check valve, shock absorber outer wall forms, hanger is connected to the top in air bellow chamber, the outer of air bellow chamber is with rubber bag tank skin, air spring vibration reduction device epicoele is positioned at the bottom in air bellow chamber, first check valve is positioned on piston, air spring vibration reduction device cavity of resorption is positioned at the below of piston, lower hanger is positioned at the below of shock absorber outer wall, second check valve is positioned on piston.
3. a kind of interconnection type air suspension control setup according to claim 2, is characterized in that: shock absorber outer wall is tetragonal body.
4. an interconnection type air suspension controls control system, it comprises steering wheel angle sensor, accelerator pedal sensor, brake-pedal-travel sensor, car speed sensor, vehicle-mounted computer, driver module, first electromagnetic valve, second electromagnetic valve, 3rd electromagnetic valve, 4th electromagnetic valve, 5th electromagnetic valve, 6th electromagnetic valve, first electromagnetic valve, second electromagnetic valve, 3rd electromagnetic valve, 4th electromagnetic valve, 5th electromagnetic valve, 6th electromagnetic valve is actuator module, steering wheel angle sensor connects vehicle-mounted computer, car speed sensor, accelerator pedal sensor, brake-pedal-travel sensor is connected with vehicle-mounted computer all respectively, vehicle-mounted computer connects driver module, first electromagnetic valve, second electromagnetic valve, 3rd electromagnetic valve, 4th electromagnetic valve, 5th electromagnetic valve, 6th electromagnetic valve is connected on driver module.
5. the interconnection type air suspension control method that adopts of a kind of interconnection type air suspension control system according to claim 4, is characterized in that: comprise the following steps: step S1 is according to the driving cycle of the control command determination vehicle of chaufeur; Step S2 utilizes the vehicle traveling information decision-making of the instruction of chaufeur and sensor collection to go out the interconnect mode of suspension, and solenoid control instruction is sent to driver module, and then air suspension can be adjusted to corresponding interconnect mode.
6. interconnection type air suspension control method according to claim 5, is characterized in that: comprise the following steps: step S1 detects driver command, judges the driving cycle of vehicle, namely selects normal driving operating mode or cross-country driving operating mode according to the wish of chaufeur; Step S2 carries out interconnect mode decision-making: step S201 utilizes vehicle body sensor to detect status information in vehicle travel process, as moving velocity, accelerator pedal stroke, brake-pedal travel, the steering wheel angle information of vehicle; Step S202 and step S210 selects the driving cycle of vehicle according to the result of step S1; Step S203 judges the motoring condition of vehicle according to the information in step S201, namely start to walk, brake, straight-line travelling, turning; Step S204 and S209 goes out the interconnect mode of suspension according to information decision above; The interconnect mode that step S205 and S208 goes out according to decision-making above, generates solenoid control signal; Step S206, according to control signal, generates solenoid-driven voltage; In step S207, electromagnetic valve opens or closes according to driving voltage, and then suspension can be made to be in target interconnect mode.
7. interconnection type air suspension control method according to claim 5, it is characterized in that: the interconnected state control system of air bellow comprises information acquisition system, ECU, actuating unit and the signal wire (SW) for communication between three, wherein, information acquisition system comprises steering wheel angle sensor, for collection vehicle direction information; Also comprise the running model select button be placed near meter panel of motor vehicle, this button is by chaufeur manual control; Actuating unit comprises electromagnetic valve in air bellow interconnecting pipes and driver module, and this driver module can accept the control information that ECU transmits, and accordingly to each solenoid valve.
8. interconnection type air suspension control method according to claim 5, is characterized in that: shock absorber interconnecting pipes can realize epicoele and the cavity of resorption UNICOM of adjacent shock absorber, is undertaken cross interconnected by electromagnetic valve; The interconnected state control system of shock absorber comprises information acquisition system, ECU, actuating unit three part equally, wherein information acquisition system and ECU two parts and the interconnected state control system structure of air bellow share, information fusion, actuating unit comprises and is installed on interconnected electromagnetic valve in shock absorber interconnecting pipes and corresponding driver module, this driver module can accept the control information that ECU transmits equally, and accordingly to each solenoid valve; A kind of control policy being specially adapted for this interconnected state control that the present invention proposes has multiple interconnect mode as shown in table 1, is all realized by controlling interconnected electromagnetic valve opening and closing.
9. interconnection type air suspension control method according to claim 5, it is characterized in that: interconnection type air suspension control policy is as follows: information when travelling in conjunction with the control command of chaufeur and vehicle carries out judging online the air suspension interconnect mode of the best, it is as follows that pattern switches the information needed: the speed of a motor vehicle, steering wheel angle, torque, accelerator pedal stroke, brake-pedal travel, first divides vehicle operating mode in the process of moving, and the interconnect mode that often kind of 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, thus selects the suspension interconnect mode adapting to often kind of operating mode.
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