CN103057378B - A kind of vehicle height control device and method - Google Patents
A kind of vehicle height control device and method Download PDFInfo
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- CN103057378B CN103057378B CN201310012154.8A CN201310012154A CN103057378B CN 103057378 B CN103057378 B CN 103057378B CN 201310012154 A CN201310012154 A CN 201310012154A CN 103057378 B CN103057378 B CN 103057378B
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- inner chamber
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Abstract
A kind of active suspension system, including damper and the stepper motor of driving damper operating, damper includes piston rod, piston, the second inner chamber being positioned on piston rod and contains piston and the first inner chamber of the second inner chamber, driving equipment is connected with piston rod head end, at least provided with an oil inlet and outlet on the second inner chamber.Change according to speed and surface conditions, by controlling stepper motor slewing rate, control oil inlet quantity and the oil pump capacity of the second inner chamber, make a certain amount of minimizing of damping oil and increase in the first inner chamber, realize controlling decline and the rising of damper, thus realize the accurate adjustment of the height of vehicle body so that vehicle can adjust bodywork height in the process of moving as required, reduce the oil consumption of vehicle, strengthen vehicle and drive through performance.
Description
Technical field
The invention belongs to automobile technical field, relate to automobile power technology, particularly relate to a kind of ride height control technology.
Background technology
The varying environment of running car is different to the requirement of bodywork height.During the running at high speed of vehicle, vehicle body is high
Spending the highest, the cross-sectional area of vehicle is the biggest, the biggest with the contact area of wind, and when causing identical speed to travel, bodywork height is more
Height, windage is the biggest, and oil consumption also increases, and now, if reducing bodywork height, not only oil consumption subtracts as well as the reduction of windage
Few, and safety and the stability of the ground ability of grabbing of tire, beneficially vehicle traveling can be increased；In normal vehicle operation, need
Time to be broken the barriers, bodywork height raises, and changes bodywork height according to road conditions, can be greatly improved the handling capacity of vehicle itself.
Accordingly, it is desirable to provide a kind of device that can change bodywork height so that vehicle can control vehicle body according to the different of driving environment
The change of height.
Summary of the invention
It is an object of the invention to provide a kind of control device that can adjust bodywork height and system.
Technical scheme is as follows:
A kind of active suspension system, including damper and the driving equipment that drives damper operating, damper include piston rod,
Piston, the second inner chamber being positioned on piston rod and containing piston and the first inner chamber of the second inner chamber, drive equipment first with piston rod
End is connected, at least provided with an oil inlet and outlet on the second inner chamber.
Piston and the second inner chamber are connected, and cut off the first inner chamber, and piston is provided with at least two check valve, and check valve flows to contrary.
Further, driving equipment is stepper motor.
A kind of bodywork height adjusts system, including driving stability controller and described active suspension system, driving stability controller
Accept order-driven active suspension system regulation rigidity and height.
Bodywork height adjusts system, also includes that vehicle speed sensor, vehicle speed sensor are connected with driving stability controller, detects vehicle
Speed and be converted to the signal of telecommunication and send driving stability controller to, driving stability controller processes the signal of telecommunication and also drives active suspension
System fading margin rigidity and height.
A kind of sense the method that speed adjusts bodywork height automatically, comprise the following steps,
The speed signal of telecommunication is provided, the signal of telecommunication of car speed size is provided constantly；
The processing speed signal of telecommunication, when speed exceedes preset value, controls active suspension device height according to the signal of telecommunication, adjusts vehicle body high
Degree.
Sensing speed automatically adjusts the method for bodywork height and is provided with more than one preset value:
When speed is higher than preset value, stepper motor inverts, and bodywork height declines；
When vehicle body is less than preset value, stepper motor rotates forward, and vehicle body rises at a high speed.
A kind of vehicle height control device and system, according to change and the surface conditions of speed, inverted by the rotating forward of stepper motor
And slewing rate, 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 damper and determine decline and the rising of numerical value, thus realize the adjustment of the height of vehicle body.
Accompanying drawing explanation
Fig. 1 is the structure chart of one embodiment of active suspension system；
Fig. 2 is the fundamental diagram of vehicle height control system.
Detailed description of the invention
As it is shown in figure 1, a kind of active suspension system 100, including damper 110 and the driving of driving damper 110 operating
Equipment 120.In the present embodiment, driving equipment is stepper motor 120.Damper 110 include piston rod 112, piston 113,
The second inner chamber 114 of being positioned on piston rod 112 and contain piston 113 and the first inner chamber 116 of the second inner chamber 114.Stepping electricity
Machine 120 is connected with piston rod 112 head end, drives piston rod 112 to move, at least provided with a turnover oil on the second inner chamber 114
Mouth 118.
First inner chamber 116 is divided into two parts, piston 113 to be provided with at least two check valve 119, check valve 119 by piston 113
The flow direction contrary.Damping oil circulates in the first inner chamber 116 up and down via check valve 119, produces damping force, it is achieved damper
The vibration-damping function of 110.
When piston 113 is positioned at bottom the first inner chamber 116, oil-in 118 oil sealing.
When stepper motor 120 rotates forward, piston rod 112 moving, oil-in 118 is opened, and is normal pressure in the first inner chamber 116,
Being negative pressure in second inner chamber 114, the pressure in the first inner chamber 116 is more than the pressure of the second inner chamber 114, and damping oil is via setting
Oil inlet and outlet 118 on the second inner chamber 114 sucks the second inner chamber 114, and the second inner chamber 114 lumen damping oil liquid level declines, subtracts
Shake device 110 compresses, and vehicle body entirety is descending.
When stepper motor 120 inverts, piston rod 112 moves down, and the second inner chamber 114 is normal pressure, and the first inner chamber 116 is negative pressure
Power, the pressure in the second inner chamber 114 is more than the pressure of the first inner chamber 116.Damping oil is via being positioned at entering on the second inner chamber 114
Oil-out 118 enters the first inner chamber 116, and damping oil returns to the first inner chamber 116, and in the first inner chamber 116, damping oil liquid level rises,
Making damper 110 overall up, vehicle body entirety is up.
By controlling the running speed of stepper motor 120, accurately control the turnover oil mass in the second inner chamber 114, it is achieved shock absorber
Rising or falling of 110 height, thus accurately control the change of body of a motor car height.
As in figure 2 it is shown, a kind of system from main modulation bodywork height, including driving stability controller 200 and active suspension system
100, driving stability controller 200, when vehicle needs reduce or raise bodywork height in the process of moving, driving stability control
Device 200 processed receives and processes the signal or instruction received, and drives active suspension system 100 to carry out rigidity and the regulation of height.
When running into barrier etc. and needing the situation heightening bodywork height, driving stability controller 200 Driving Stepping Motor 112 inverts,
Making active suspension system 100 up, vehicle rises, and improves bus capacity；When needs reduce bodywork height, travel
Stability controller 200 Driving Stepping Motor 112 rotates forward so that active suspension system 100 compresses, and vehicle declines.
Vehicle speed sensor 300, vehicle speed sensor 300 and driving stability controller 200 is also included from the system of main modulation bodywork height
Being connected, the detection speed of vehicle is also converted to the signal of telecommunication and sends driving stability controller 200 to, at driving stability controller 200
The reason speed signal of telecommunication, it may be judged whether need upper body or decline bodywork height, drives active suspension system 100 to regulate rigidity and height.
Ride height control system can sense car speed from main modulation height of car.
When Vehicle Speed gradually rises to default numerical value, vehicle speed sensor 300 detects the speed of vehicle and is converted to
The signal of telecommunication sends driving stability controller 200 to, and driving stability controller 200 Driving Stepping Motor 120 inverts so that vehicle
Whole height progressively declines certain distance.Thus reduce the windage in vehicle travel process, reduce oil consumption.
When Vehicle Speed gradually decreases to default numerical value, vehicle speed sensor 300 detects the speed of vehicle and is converted to
The signal of telecommunication sends driving stability controller 200 to, and driving stability controller 200 Driving Stepping Motor 120 rotates forward so that vehicle
Whole height gradually rises certain distance, recovers original height.
A kind of sense the method that speed adjusts bodywork height automatically, comprise the following steps,
The speed signal of telecommunication is provided；Vehicle speed sensor 300 collection vehicle driving speed information, and convert thereof into the signal of telecommunication；
Accept and the processing speed signal of telecommunication, when speed reaches setting value, control active suspension device 100 according to the signal of telecommunication transmitted
Rigidity with height regulation, adjust bodywork height；
System is provided with more than one preset value: when speed is higher than preset value, and stepper motor inverts, and bodywork height declines；When
When speed is less than preset value, stepper motor rotates forward, and rises vehicle body to normal level.
Wherein in an embodiment, specific works process is as follows:
After vehicle motor starts, system starts normally to work.
When vehicle speed reaches the preset value of 60,000 ms/hour, driving stability controller 200 is received vehicle speed sensor 300 and is transmitted
The speed signal of telecommunication, drive stepper motor 120 on four dampers 110 to invert with given pace so that on piston rod 112
Moving, a certain amount of damping oil is inhaled into the second inner chamber 114, make dampening compression in damper 110 in row cabin, damper 110
Down compressing, stepper motor 120 locks, and whole stroke can decline 20 millimeters, and bodywork height declines 20 millimeters simultaneously.
When vehicle speed reaches preset value 80 km/constantly, and driving stability controller 200 is again received vehicle speed sensor 300 and passed
The speed signal of telecommunication come, drives the stepper motor 120 on four dampers 110 to continue reversion to move on piston rod 112,
Damping oil is again sucked into the second inner chamber 114, and damper 110 the most down compresses, and stepper motor 120 locks, whole row
Journey declines 20 millimeters, and bodywork height declines 20 millimeters simultaneously.
When vehicle speed reaches preset value 100,000 ms/hour, and driving stability controller 200 is again received vehicle speed sensor 300 and transmitted
The speed signal of telecommunication, drive the stepper motor 120 on four dampers 110 to invert so that piston rod 112 continues upper shifting, resistance
Buddhist nun's oil continues to be inhaled into the second inner chamber 114, and damper 110 the most down compresses, and stepper motor 120 locks, whole stroke
Declining 20 millimeters, bodywork height declines 20 millimeters simultaneously.
When vehicle speed reaches preset value more than 120,000 ms/hour, vehicle speed sensor 300 received again by driving stability controller 200
The speed signal of telecommunication transmitted, again drives the stepper motor 120 on four dampers 110 to invert, piston rod 112 moves, resistance
Buddhist nun's oil continues to be inhaled into the second inner chamber 114, and damper 110 the most down compresses, and stepper motor 120 locks, whole stroke
Declining 20 millimeters, bodywork height declines 20 millimeters simultaneously.
When car speed is gradually reduced, driving stability controller 200 accepts the speed signal of telecommunication that vehicle speed sensor 300 transmits,
Drive stepping stepper motor 120 to start gradually to unlock rotating forward with car speed change, promote piston gradually to move down, the second inner chamber 114
In damping oil flow back to the first chamber from oil inlet and outlet successively, bodywork height recovers normal.
A kind of vehicle height control device and system, according to change and the surface conditions of speed, by the rotating forward of stepper motor 120
Reversion and slewing rate, control oil inlet quantity and the oil pump capacity of the second inner chamber 114 so that in the first inner chamber 116, damping oil is a certain amount of
Minimizing and increase, it is achieved control the decline of damper 110 and rising, thus realize the adjustment of the height of vehicle body.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and apply the present invention.It is familiar with this
Above-described embodiment obviously easily can be made various amendment by the personnel of art, and General Principle described herein is applied
Without through performing creative labour in other embodiments.Therefore, the invention is not restricted to embodiment here, art technology
Personnel should be within protection scope of the present invention according to the announcement of the present invention, the improvement made for the present invention and amendment.
Claims (2)
1. a bodywork height adjusts system, it is characterised in that: include driving stability controller and active suspension system, described
Driving stability controller accepts active suspension system regulation rigidity and height described in order-driven；
Also include that vehicle speed sensor, described vehicle speed sensor are connected with described driving stability controller, detect the speed of vehicle and turn
Being changed to the signal of telecommunication and send described driving stability controller to, described driving stability controller processes to be had described in the described signal of telecommunication driving
Source suspension regulation rigidity and height；
Described active suspension system includes damper and the driving equipment driving described damper to operate, and described damper includes living
Stopper rod, piston, the second inner chamber being positioned on described piston rod and contain described piston and the first inner chamber of described second inner chamber,
Described driving equipment is connected with piston rod head end, at least provided with an oil inlet and outlet on described second inner chamber；Described piston is with described
Second inner chamber is connected, and cuts off described first inner chamber, and described piston is provided with at least two check valve, and described check valve flows to contrary.
2. one kind senses the method that speed adjusts bodywork height automatically, it is characterised in that: comprise the following steps,
The speed signal of telecommunication is provided, the signal of telecommunication of car speed size is provided constantly；
The processing speed signal of telecommunication, when speed exceedes preset value, controls active suspension device height according to the described signal of telecommunication, adjusts car
Height degree；
Being provided with more than one preset value, described preset value includes rotating forward preset value and reversion preset value；
When speed gradually rises to described reversion preset value, stepper motor inverts, and bodywork height declines；
When speed gradually decreases to described rotating forward preset value, stepper motor rotates forward, and bodywork height rises；
When vehicle speed reaches 60 kms/constantly, and stepper motor inverts, and bodywork height declines 20 millimeters；
When vehicle speed reaches preset value 80 km/constantly, and stepper motor continues reversion, and bodywork height declines 20 millimeters again；
When vehicle speed reaches preset value 100 km/constantly, and stepper motor continues reversion, and bodywork height declines 20 millimeters again；
When vehicle speed reaches preset value 120 km/constantly, and stepper motor continues reversion, and bodywork height declines 20 millimeters again.
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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 CN103057378A (en) | 2013-04-24 |
| CN103057378B true CN103057378B (en) | 2016-08-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742678B (en) * | 2015-04-02 | 2017-02-01 | 吉林大学 | 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 |
Citations (3)
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|---|---|---|---|---|
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4506463B2 (en) * | 2004-12-28 | 2010-07-21 | トヨタ自動車株式会社 | Vehicle height adjustment device |
| JP4114679B2 (en) * | 2005-05-24 | 2008-07-09 | トヨタ自動車株式会社 | Vehicle damping force control device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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