CN103057378A - Vehicle body height control device and method - Google Patents
Vehicle body height control device and method Download PDFInfo
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- CN103057378A CN103057378A CN2013100121548A CN201310012154A CN103057378A CN 103057378 A CN103057378 A CN 103057378A CN 2013100121548 A CN2013100121548 A CN 2013100121548A CN 201310012154 A CN201310012154 A CN 201310012154A CN 103057378 A CN103057378 A CN 103057378A
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Abstract
An active suspension system comprises a shock absorber and a step motor driving the shock absorber to operate. The shock absorber comprises a piston rod, a piston, a second inner cavity on the piston rod, and a first inner cavity containing the piston and the second inner cavity. A drive device is connected with the front end of the piston rod. The second inner cavity is provided with at least one oil hole. According to speed change and road conditions, oil intake and oil discharge is controlled for the second inner cavity by controlling rotating speed of the step motor, so that damping oil in the first inner cavity is decreased and increased quantitatively, ascent and descent of the shock absorber are controlled, precision adjustment of vehicle body height is achieved, the body height of a vehicle can be adjusted as required during driving, oil consumption of the vehicle is lowered and trafficability of the vehicle is enhanced.
Description
Technical field
The invention belongs to automobile technical field, relate to the automobile power technology, relate in particular to a kind of ride height control technology.
Background technology
The varying environment of running car is different to the requirement of bodywork height.In the process of running at high speed of vehicle, bodywork height is higher, and the cross-sectional area of vehicle is larger, also larger with the area of contact of wind, when causing identical speed to be travelled, bodywork height is higher, and windage is larger, oil consumption also increases, at this moment, if reduce bodywork height, not only oil consumption also can reduce along with the reduction of windage, and can increase the ground ability of grabbing of tire, be conducive to safety and the stability of Vehicle Driving Cycle; In normal vehicle operation, in the time of need to breaking the barriers, bodywork height raises, and changes bodywork height according to road conditions, can greatly improve the carrying capacity of vehicle itself.Therefore vehicle, need to provide a kind of device that can change bodywork height, so that can be controlled according to the difference of driving environment the variation of bodywork height.
Summary of the invention
The purpose of this invention is to provide a kind of control setup and system that can adjust bodywork height.
Technical scheme of the present invention is as follows:
A kind of active suspension system, comprise bumper and the driving arrangement that drives the bumper running, the first inner chamber that bumper comprises piston rod, piston, is positioned at the second inner chamber on the piston rod and contains piston and the second inner chamber, driving arrangement links to each other with the piston rod head end, is provided with at least an oil inlet and outlet on the second inner chamber.
Piston links to each other with the second inner chamber, cuts off the first inner chamber, and piston is provided with at least two check valves, and check valve flows to opposite.
Further, driving arrangement is stepping motor.
A kind of bodywork height Adjustment System comprises driving stability controller and described active suspension system, and the driving stability controller is accepted the order-driven active suspension system and regulated rigidity and height.
The bodywork height Adjustment System, comprise that also car speed sensor, car speed sensor link to each other with the driving stability controller, detect the speed of a motor vehicle of vehicle and be converted to electric signal and send the driving stability controller to, the driving stability controller is processed electric signal and is also driven active suspension system and regulate rigidity and height.
A kind ofly respond to the method that the speed of a motor vehicle is adjusted bodywork height automatically, may further comprise the steps,
The speed electric signal is provided, the electric signal of car speed size is provided constantly;
The processing speed electric signal when speed of a motor vehicle surpasses preset value, according to electric signal control active suspension device height, is adjusted bodywork height.
The method that the induction speed of a motor vehicle is adjusted bodywork height automatically is provided with more than one preset value:
When the speed of a motor vehicle is higher than preset value, the stepping motor counter-rotating, bodywork height descends;
When vehicle body is lower than preset value, the stepping motor forward, vehicle body rises at a high speed.
A kind of vehicle height control device and system, variation and road surface situation according to the speed of a motor vehicle, forward counter-rotating and slewing rate by stepping motor, control oil inlet quantity and the oil pump capacity of the second inner chamber, so that a certain amount of minimizing of damping oil and increase in the first inner chamber, realize controlling decline and the rising that bumper is determined numerical value, thereby realize the adjustment of the height of vehicle body.
Description of drawings
Fig. 1 is the constructional drawing of an embodiment of active suspension system;
Fig. 2 is the fundamental diagram of vehicle height control system.
The specific embodiment
As shown in Figure 1, a kind of active suspension system 100 comprises bumper 110 and the driving arrangement 120 that drives bumper 110 runnings.In the present embodiment, driving arrangement is stepping motor 120.The first inner chamber 116 that bumper 110 comprises piston rod 112, piston 113, is positioned at the second inner chamber 114 on the piston rod 112 and contains piston 113 and the second inner chamber 114.Stepping motor 120 links to each other with piston rod 112 head ends, drives piston rod 112 and moves, and is provided with at least an oil inlet and outlet 118 on the second inner chamber 114.
Piston 113 is divided into two parts with the first inner chamber 116, and piston 113 is provided with at least two check valves 119, and the flow direction of check valve 119 is opposite.Damping oil produces dumping force via check valve 119 up and down circulation in the first inner chamber 116, realizes the vibration-damping function of bumper 110.
When piston 113 is positioned at the first inner chamber 116 bottoms, oil inlet 118 oil sealings.
During stepping motor 120 forward, move on the piston rod 112, oil inlet 118 is opened, being positive pressure in the first inner chamber 116, is negative pressure in the second inner chamber 114, and the pressure in the first inner chamber 116 is greater than the pressure of the second inner chamber 114, damping oil sucks the second inner chamber 114 via the oil inlet and outlet 118 of being located on the second inner chamber 114, the second inner chamber 114 lumen damping oil liquid levels descend, bumper 110 compressions, and vehicle body integral body is descending.
During stepping motor 120 counter-rotating, piston rod 112 moves down, and the second inner chamber 114 is positive pressure, and the first inner chamber 116 is negative pressure, and the pressure in the second inner chamber 114 is greater than the pressure of the first inner chamber 116.Damping oil enters the first inner chamber 116 via the oil inlet and outlet 118 that is positioned on the second inner chamber 114, and damping oil is got back to damping oil liquid level rising in the first inner chamber 116, the first inner chambers 116, makes bumper 110 whole up, and vehicle body integral body is up.
By the operating speed of control step motor 120, accurately control the turnover oil mass in the second inner chamber 114, realize rising or the decline of shock absorber 110 height, thereby accurately control the change of auto body height.
As shown in Figure 2, a kind of system of autonomous adjustment bodywork height, comprise driving stability controller 200 and active suspension system 100, driving stability controller 200, when vehicle needs reduction or rising bodywork height in the process of moving, driving stability controller 200 receives and processes signal or the instruction of receiving, drives the adjusting that active suspension system 100 carries out rigidity and height.When running into obstacle etc. and need to heighten the situation of bodywork height, 112 counter-rotatings of driving stability controller 200 Driving Stepping Motors, so that active suspension system 100 is up, vehicle rises, and improves bus capacity; When needs reduce bodywork height, driving stability controller 200 Driving Stepping Motors 112 forwards, so that active suspension system 100 compressions, vehicle descends.
The autonomous system that adjusts bodywork height also comprises car speed sensor 300, car speed sensor 300 links to each other with driving stability controller 200, detect the speed of a motor vehicle of vehicle and be converted to electric signal and send driving stability controller 200 to, driving stability controller 200 is processed speed of a motor vehicle electric signal, need to judge whether upper body or decline bodywork height, drive active suspension system 100 and regulate rigidity and height.
But ride height control system sense vehicle speed is independently adjusted height of car.
When Vehicle Speed rises to default numerical value gradually, car speed sensor 300 detects the speed of a motor vehicle of vehicle and is converted to electric signal and sends driving stability controller 200 to, 120 counter-rotatings of driving stability controller 200 Driving Stepping Motors, the certain distance so that the vehicle whole height progressively descends.Thereby reduce the windage in the Vehicle Driving Cycle process, reduce oil consumption.
When Vehicle Speed drops to default numerical value gradually, car speed sensor 300 detects the speed of a motor vehicle of vehicle and is converted to electric signal and sends driving stability controller 200 to, driving stability controller 200 Driving Stepping Motors 120 forwards, the certain distance so that the vehicle whole height progressively rises recovers original height.
A kind ofly respond to the method that the speed of a motor vehicle is adjusted bodywork height automatically, may further comprise the steps,
The speed electric signal is provided; Car speed sensor 300 collection vehicle moving velocity information, and convert thereof into electric signal;
Accept and the processing speed electric signal, when the speed of a motor vehicle reaches setting value, according to the rigidity of the electric signal control active suspension device 100 that transmits and the adjusting of height, adjust bodywork height;
System is provided with more than one preset value: when the speed of a motor vehicle is higher than preset value, and the stepping motor counter-rotating, bodywork height descends; When the speed of a motor vehicle is lower than preset value, the stepping motor forward, the rising vehicle body is to normal height.
Among the embodiment, the specific works process is as follows therein:
After vehicle motor started, system began normal operation.
When vehicle speed reach 60 kms/time preset value the time, driving stability controller 200 is received the speed of a motor vehicle electric signal that car speed sensor 300 transmits, the stepping motor 120 that drives on four bumpers 110 reverses with given pace, so that move on the piston rod 112, a certain amount of damping oil is inhaled into the second inner chamber 114, and the damping in the bumper 110 is compressed in the capable cabin, bumper 110 is toward lower compression, stepping motor 120 lockings, whole stroke can descend 20 millimeters, and bodywork height descends 20 millimeters simultaneously.
When vehicle speed reaches preset value 80 kms/constantly, driving stability controller 200 is received the speed of a motor vehicle electric signal that car speed sensor 300 transmits again, the stepping motor 120 that drives on four bumpers 110 continues counter-rotating, so that move on the piston rod 112, damping oil is inhaled into the second inner chamber 114 again, and bumper 110 is further toward lower compression, and stepping motor 120 locks, whole stroke descends 20 millimeters, and bodywork height descends 20 millimeters simultaneously.
When vehicle speed reach preset value 100 kms/time, driving stability controller 200 is received the speed of a motor vehicle electric signal that car speed sensor 300 transmits again, drive stepping motor 120 counter-rotatings on four bumpers 110, so that piston rod 112 moves on continuing, damping oil continues to be inhaled into the second inner chamber 114, and bumper 110 is further toward lower compression, and stepping motor 120 locks, whole stroke descends 20 millimeters, and bodywork height descends 20 millimeters simultaneously.
When vehicle speed reach preset value 120 kms/time when above, driving stability controller 200 is received the speed of a motor vehicle electric signal that car speed sensor 300 transmits again, again drive four stepping motor 120 counter-rotatings on the bumper 110, move on the piston rod 112, damping oil continues to be inhaled into the second inner chamber 114, and bumper 110 is further toward lower compression, and stepping motor 120 locks, whole stroke descends 20 millimeters, and bodywork height descends 20 millimeters simultaneously.
When car speed descends gradually, driving stability controller 200 is accepted the speed of a motor vehicle electric signal that car speed sensor 300 transmits, drive stepping stepping motor 120 and begin one by one release forward with the car speed variation, pushing piston moves down one by one, damping oil in the second inner chamber 114 flows back to the first chamber from oil inlet and outlet successively, and it is normal that bodywork height recovers.
A kind of vehicle height control device and system, variation and road surface situation according to the speed of a motor vehicle, forward counter-rotating and slewing rate by stepping motor 120, control oil inlet quantity and the oil pump capacity of the second inner chamber 114, so that a certain amount of minimizing of damping oil and increase in the first inner chamber 116, realize decline and the rising of control bumper 110, thereby realize the adjustment of the height of vehicle body.
Above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to above-described embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (7)
1. active suspension system, it is characterized in that: the driving arrangement that comprises bumper and drive described bumper running, described bumper comprises piston rod, piston, is positioned at the second inner chamber on the described piston rod and contains described piston and the first inner chamber of described the second inner chamber, described driving arrangement links to each other with the piston rod head end, is provided with at least an oil inlet and outlet on described the second inner chamber.
2. active suspension system according to claim 1, it is characterized in that: described piston links to each other with described the second inner chamber, cuts off described the first inner chamber, and described piston is provided with at least two check valves, and described check valve flows to opposite.
3. active suspension system according to claim 1, it is characterized in that: described driving arrangement is stepping motor.
4. bodywork height Adjustment System is characterized in that: comprise driving stability controller and active suspension system claimed in claim 1, described driving stability controller is accepted the described active suspension system of order-driven and is regulated rigidity and height.
5. bodywork height Adjustment System according to claim 4, it is characterized in that: comprise that also car speed sensor, described car speed sensor link to each other with described driving stability controller, detect the speed of a motor vehicle of vehicle and be converted to electric signal and send described driving stability controller to, described driving stability controller is processed described electric signal and is driven described active suspension system and regulates rigidity and height.
6. respond to the method that the speed of a motor vehicle is adjusted bodywork height automatically for one kind, it is characterized in that: may further comprise the steps,
The speed electric signal is provided, the electric signal of car speed size is provided constantly;
The processing speed electric signal when speed of a motor vehicle surpasses preset value, according to described electric signal control active suspension device height, is adjusted bodywork height.
7. the induction speed of a motor vehicle according to claim 6 is adjusted the method for bodywork height automatically, it is characterized in that: be provided with more than one preset value,
When the speed of a motor vehicle is higher than described preset value, the stepping motor counter-rotating, bodywork height descends;
When vehicle body is lower than described preset value, the stepping motor forward, vehicle body rises at a high speed.
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| CN201310012154.8A CN103057378B (en) | 2013-01-11 | 2013-01-11 | A kind of vehicle height control device and method |
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| CN201310012154.8A CN103057378B (en) | 2013-01-11 | 2013-01-11 | A kind of vehicle height control device and method |
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| CN103057378A true CN103057378A (en) | 2013-04-24 |
| CN103057378B CN103057378B (en) | 2016-08-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742678A (en) * | 2015-04-02 | 2015-07-01 | 吉林大学 | Novel suspension suitable for wheel side motor driving car |
| CN105346351A (en) * | 2015-12-02 | 2016-02-24 | 江苏理工学院 | Control device for inhibiting automobile side turning and control method for inhibiting automobile side turning |
| CN106114116A (en) * | 2016-08-11 | 2016-11-16 | 方勇海 | A kind of active balancing formula automobile suspension system |
| CN115106139A (en) * | 2022-06-22 | 2022-09-27 | 张志新 | Cosmetic stability test box under simulation real environment |
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| US20060142916A1 (en) * | 2004-12-28 | 2006-06-29 | Toyota Jidosha Kabushiki Kaisha | Height controlling apparatus |
| CN1974242A (en) * | 2005-12-02 | 2007-06-06 | 株式会社万都 | Vehicle height controlling suspension apparatus having signal-freeze determining function and vehicle height control method thereof |
| CN101439653A (en) * | 2008-12-22 | 2009-05-27 | 奇瑞汽车股份有限公司 | System and method for automatically regulating chassis height |
| US20090234537A1 (en) * | 2005-05-24 | 2009-09-17 | Toyota Jidosha Kabushiki Kaisha | Vehicle damping force control apparatus |
| CN102765383A (en) * | 2012-08-01 | 2012-11-07 | 浙江吉利汽车研究院有限公司杭州分公司 | Method and system for vehicle balance |
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2013
- 2013-01-11 CN CN201310012154.8A patent/CN103057378B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060142916A1 (en) * | 2004-12-28 | 2006-06-29 | Toyota Jidosha Kabushiki Kaisha | Height controlling apparatus |
| US20090234537A1 (en) * | 2005-05-24 | 2009-09-17 | Toyota Jidosha Kabushiki Kaisha | Vehicle damping force control apparatus |
| CN1974242A (en) * | 2005-12-02 | 2007-06-06 | 株式会社万都 | Vehicle height controlling suspension apparatus having signal-freeze determining function and vehicle height control method thereof |
| CN101439653A (en) * | 2008-12-22 | 2009-05-27 | 奇瑞汽车股份有限公司 | System and method for automatically regulating chassis height |
| CN102765383A (en) * | 2012-08-01 | 2012-11-07 | 浙江吉利汽车研究院有限公司杭州分公司 | Method and system for vehicle balance |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742678A (en) * | 2015-04-02 | 2015-07-01 | 吉林大学 | Novel suspension suitable for wheel side motor driving car |
| CN105346351A (en) * | 2015-12-02 | 2016-02-24 | 江苏理工学院 | Control device for inhibiting automobile side turning and control method for inhibiting automobile side turning |
| CN106114116A (en) * | 2016-08-11 | 2016-11-16 | 方勇海 | A kind of active balancing formula automobile suspension system |
| CN115106139A (en) * | 2022-06-22 | 2022-09-27 | 张志新 | Cosmetic stability test box under simulation real environment |
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| CN103057378B (en) | 2016-08-24 |
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