CN105346351A - Control device for inhibiting automobile side turning and control method for inhibiting automobile side turning - Google Patents
Control device for inhibiting automobile side turning and control method for inhibiting automobile side turning Download PDFInfo
- Publication number
- CN105346351A CN105346351A CN201510871207.0A CN201510871207A CN105346351A CN 105346351 A CN105346351 A CN 105346351A CN 201510871207 A CN201510871207 A CN 201510871207A CN 105346351 A CN105346351 A CN 105346351A
- Authority
- CN
- China
- Prior art keywords
- shock absorber
- valve
- piston
- side turning
- bypass channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
- B60G17/0162—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input mainly during a motion involving steering operation, e.g. cornering, overtaking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/20—Type of damper
- B60G2202/24—Fluid damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/41—Fluid actuator
- B60G2202/416—Fluid actuator using a pump, e.g. in the line connecting the lower chamber to the upper chamber of the actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/20—Speed
- B60G2400/204—Vehicle speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/40—Steering conditions
- B60G2400/41—Steering angle
- B60G2400/412—Steering angle of steering wheel or column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/01—Attitude or posture control
- B60G2800/012—Rolling condition
- B60G2800/0124—Roll-over conditions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to the technical field of automobile accessories, in particular to a control device for inhibiting automobile side turning and a control method for inhibiting automobile side turning. The control device comprises a shock absorber, a piston rod and a piston, wherein the piston is connected onto the piston; the position is arranged in the shock absorber; an extension valve and a circulation valve are arranged on the piston; the lower part of the shock absorber is connected with an oil storage cylinder; the side part of the shock absorber is connected with a bypass passage; the bottom of the shock absorber is provided with a compensation valve and a compression valve; and a one-way valve, a one-way variable hydraulic pump and a two-position two-way reversing valve are arranged on the bypass passage. The lower part of the shock absorber is provided with the oil storage cylinder, and the side part of the shock absorber is provided with the bypass passage, so that an emergency intervention mechanism is formed; under the emergency condition that side turning possibly occurs, the one-way variable hydraulic pump arranged on the bypass passage actively gets involved to pump oil; the oil pressure balance is controlled; the automobile stability is maintained; and the vehicle side turning is effectively inhibited.
Description
Technical field
The present invention relates to technical field of automobile, especially suppress control setup and the method thereof of vehicle side turning.
Background technology
In vehicle traveling process, often traffic accident can occur, rollover is wherein serious and threatens a kind of accident of member security.Rollover is produced by one or a series of composite factor, and it may occur in acclive road surface (or without road situation), is subject to the impact of uneven road surface; Also likely occur in soft terrain or other obstacle road surfaces, lateral pressure can be impelled to improve thus vehicle " is slipped "; Also likely occur on straight level ground, when the lateral acceleration of vehicle reaches certain numerical value, this numerical value will exceed vehicular sideview weight when transferring to the accekeration that wheel is offset, and also can cause rollover.Rollover injures the life security of occupant for small passenger car and passenger vehicle, can cause loss in various degree for lorry to institute's cargo.
Summary of the invention
Being difficult to avoid rollover to overcome existing automobile, there is the deficiency of potential safety hazard, the invention provides the control setup and method thereof that suppress vehicle side turning.
The technical solution adopted for the present invention to solve the technical problems is: a kind of control setup suppressing vehicle side turning, comprise shock absorber, piston rod and piston, piston rod is connected on piston, piston is arranged in shock absorber, piston is provided with rebound valve and flowing valve, and shock absorber bottom and sidepiece are connected to oil storage cylinder and bypass channel, and the bottom of shock absorber is provided with throttle compensating valve and compression valve, bypass channel is provided with check valve, unidirectional volume adjustable hydraulic pump and bi-bit bi-pass change-over valve.
According to another embodiment of the invention, throttle compensating valve and compression valve and oil storage cylinder UNICOM is comprised further.
According to another embodiment of the invention, the two ends up and down comprising bypass channel further respectively with epicoele and the oil storage cylinder UNICOM of shock absorber.
According to another embodiment of the invention, the two ends up and down comprising bypass channel further respectively with epicoele and the oil storage cylinder UNICOM of shock absorber.
According to another embodiment of the invention, comprising check valve further has two, is arranged on the road junction, two ends of bypass channel respectively.
According to another embodiment of the invention, comprise unidirectional volume adjustable hydraulic pump further and the arrangement of bi-bit bi-pass change-over valve is arranged on the middle part of bypass channel, unidirectional volume adjustable hydraulic pump is positioned at the top of bi-bit bi-pass change-over valve.
Suppress a control method for vehicle side turning, comprise the steps:
D1. DATA REASONING, records the speed of a motor vehicle by car speed sensor and steering wheel angle sensor
and steering wheel angle
, the initial distance of setting vehicle body and vehicle frame is
;
D2. function design, calculates
functional value, steering wheel angle
just to transfer to the right, transfer to negative left, coefficient
determined by vehicle and road traveling condition, and
,
for vehicle coefficient,
for coefficient of road adhesion;
D3. control is drawn high, when actual vehicle body and vehicle frame distance
and
time, automobile is in the anxious divertical motion of high speed and shock absorber is in ultimate elongation state, now, bypass channel intervention work, bi-bit bi-pass change-over valve goes to close passage, unidirectional variable delivery hydraulic pump work, by the epicoele of the fluid press-in shock absorber in oil storage cylinder, and according to
the size of numerical value controls the size of working flow,
numerical value larger, the fluid that unidirectional variable delivery hydraulic is pumped into is more, until
power cut-off;
D4. compression control, when actual vehicle body and vehicle frame distance
and
time, automobile is in the anxious divertical motion of high speed and this shock absorber is in limited compression state, and now, bi-bit bi-pass change-over valve is often opened, unidirectional variable delivery hydraulic air pump inoperative, and bypass channel does not work, and shock absorber normally works;
D5. recover normal, when
time, bypass channel does not work, and shock absorber normally works, automobile normal running.
The invention has the beneficial effects as follows, in the bottom of shock absorber and sidepiece, oil storage cylinder and bypass channel are set respectively, form emergence environment mechanism, rollover may there is in emergency circumstances, unidirectional volume adjustable hydraulic pump Active participation pump oil on bypass channel, control oil pressure balance, maintain vehicle body and stablize, effectively suppress vehicle rollover.During work, the real-time speed of a motor vehicle of automobile and steering wheel angle is obtained by car speed sensor and corner of vehicle steering wheel sensor, the anxious divertical motion of high speed whether is in by these two parameter decision automobiles, if under automobile is in normal motoring condition, traditional shock absorber normally works, bi-bit bi-pass change-over valve is in normally off, and bypass channel does not work; If when automobile is in high speed anxious steering state, the damper piston of inboard wheel suspension is turned to be in ultimate elongation state, bi-bit bi-pass change-over valve changes in closure state, unidirectional volume adjustable hydraulic pump is started working, by the epicoele of the fluid press-in shock absorber in oil storage cylinder, suppress the ultimate elongation of shock absorber and piston can be pushed back reference position, reducing the rollover risk of automobile.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the limit of the present invention draws high trip map;
Fig. 3 is limited compression trip map of the present invention.
1. piston rods, 2. rebound valve, 3. piston, 4. flowing valve, 5. throttle compensating valve, 6. compression valve, 7. oil storage cylinder, 8. check valve in figure, 9. unidirectional volume adjustable hydraulic pump, 10. bi-bit bi-pass change-over valve, 11. bypass channels, 12. shock absorbers.
Detailed description of the invention
If Fig. 1 is structural representation of the present invention, a kind of control setup suppressing vehicle side turning, comprise shock absorber 12, piston rod 1 and piston 3, piston rod 1 is connected on piston 3, and piston 3 is arranged in shock absorber 12, and piston 3 is provided with rebound valve 2 and flowing valve 4, shock absorber 12 bottom and sidepiece are connected to oil storage cylinder 7 and bypass channel 11, the bottom of shock absorber 12 is provided with throttle compensating valve 5 and compression valve 6, and bypass channel 11 is provided with check valve 8, unidirectional volume adjustable hydraulic pump 9 and bi-bit bi-pass change-over valve 10.Throttle compensating valve 5 and compression valve 6 and oil storage cylinder 7 UNICOM.The two ends up and down of bypass channel 11 respectively with epicoele and oil storage cylinder 7 UNICOM of shock absorber 12.The two ends up and down of bypass channel 11 respectively with epicoele and oil storage cylinder 7 UNICOM of shock absorber 12.Check valve 8 has two, is arranged on the road junction, two ends of bypass channel 11 respectively.Unidirectional volume adjustable hydraulic pump 9 and bi-bit bi-pass change-over valve 10 arrangement are arranged on the middle part of bypass channel 11, and unidirectional volume adjustable hydraulic pump 9 is positioned at the top of bi-bit bi-pass change-over valve 10.
Suppress a control method for vehicle side turning, comprise the steps:
D1. DATA REASONING, records the speed of a motor vehicle by car speed sensor and steering wheel angle sensor
and steering wheel angle
, the initial distance of setting vehicle body and vehicle frame is
;
D2. function design, calculates
functional value, steering wheel angle
just to transfer to the right, transfer to negative left, coefficient
determined by vehicle and road traveling condition, and
,
for vehicle coefficient,
for coefficient of road adhesion;
D3. control is drawn high, if Fig. 2 is that the limit of the present invention draws high trip map, when actual vehicle body and vehicle frame distance
and
time, automobile is in the anxious divertical motion of high speed and shock absorber 12 is in ultimate elongation state, now, bypass channel 11 gets involved work, and bi-bit bi-pass change-over valve 10 goes to close passage, and unidirectional volume adjustable hydraulic pump 9 works, by the epicoele of the fluid press-in shock absorber 12 in oil storage cylinder 7, and according to
the size of numerical value controls the size of working flow,
numerical value larger, the fluid that unidirectional volume adjustable hydraulic pump 9 is pressed into is more, until
power cut-off;
D4. compression control, if Fig. 3 is limited compression trip map of the present invention, when actual vehicle body and vehicle frame distance and
time, automobile is in the anxious divertical motion of high speed and this shock absorber 12 is in limited compression state, and now, bi-bit bi-pass change-over valve 10 is often opened, and unidirectional volume adjustable hydraulic pump 9 does not work, and bypass channel 11 does not work, and shock absorber 12 normally works;
D5. recover normal, when
time, bypass channel 11 does not work, and shock absorber 12 normally works, automobile normal running.
determination thought be sailed ratio and the actual steering wheel corner of speed of a motor vehicle 120km/h by the highest line of actual speed and permission
with the product of the ratio of hard-over 540 °, beating a little angle due to automobile bearing circle when high-speed cruising all can have very large deflection, so by actual steering wheel corner
expand its cube to.In the fish hook operating mode detecting stability of automobile, automobile is with the speeds of 80km/h, and bearing circle turns over 120 °, substitute into above-mentioned expression formula, obtain numerical value about 2133, using this fish hook operating mode as critical operating mode, therefore on basis above divided by this application factor 2000, obtain formula.Coefficient
depend on vehicle and driving conditions, and
,
for vehicle coefficient, get 0.8 ~ 1.5, C-class gets 0.8, and high capacity waggon gets 1.5, and coefficient increases with the increase of vehicle.
for coefficient of road adhesion.
When vehicle condition is in D3 step, piston rod 1 in shock absorber 12 up stretches, the epicoele oil pressure of shock absorber 12 raises, epicoele fluid flows into cavity of resorption by rebound valve 2, but the fluid that stream comes is not enough to be full of the volume that cavity of resorption increases, so certain degree of vacuum can be produced in cavity of resorption, now, fluid in oil storage cylinder 7 is pushed throttle compensating valve 5 open and is entered cavity of resorption, and trigger bypass channel 11 under limiting condition and work, unidirectional volume adjustable hydraulic pump 9 is by the fluid press-in epicoele in oil storage cylinder 7, rapid reduction epicoele oil pressure stops piston 3 to continue to stretch, even piston 3 is down pushed back, the barycenter of automobile is forced down, alleviate the risk of rollover.When actual vehicle body and vehicle frame distance
time, bypass channel 11 power cut-off.
When vehicle condition is in D4 step, the piston rod 1 in shock absorber 12 compresses downwards, the work of bypass channel 11 nonintervention shock absorber 12, the cavity of resorption volume of shock absorber 12 reduces, and oil pressure raises, and fluid flows to epicoele through flowing valve 4, some pushes compression valve 6 open, flows back to into oil storage cylinder 7.
In the bottom of shock absorber 12 and sidepiece, oil storage cylinder 7 and bypass channel 11 are set respectively, form emergence environment mechanism, rollover may there is in emergency circumstances, unidirectional volume adjustable hydraulic pump 9 Active participation pump oil on bypass channel 11, control oil pressure balance, maintenance vehicle body is stablized, and effectively suppresses vehicle rollover.During work, the real-time speed of a motor vehicle of automobile and steering wheel angle is obtained by car speed sensor and corner of vehicle steering wheel sensor, the anxious divertical motion of high speed whether is in by these two parameter decision automobiles, if under automobile is in normal motoring condition, traditional shock absorber 12 normally works, bi-bit bi-pass change-over valve 10 is in normally off, and bypass channel 11 does not work; If when automobile is in high speed anxious steering state, the piston 3 in the shock absorber 12 of inboard wheel suspension is turned to be in ultimate elongation state, bi-bit bi-pass change-over valve 10 changes in closure state, unidirectional volume adjustable hydraulic pump 9 is started working, by the epicoele of the fluid press-in shock absorber 12 in oil storage cylinder 7, suppress the ultimate elongation of shock absorber 12 and piston 3 can be pushed back reference position, reducing the rollover risk of automobile.
Claims (6)
1. one kind is suppressed the control setup of vehicle side turning, comprise shock absorber (12), piston rod (1) and piston (3), piston rod (1) is connected on piston (3), piston (3) is arranged in shock absorber (12), piston (3) is provided with rebound valve (2) and flowing valve (4), it is characterized in that: shock absorber (12) bottom and sidepiece are connected to oil storage cylinder (7) and bypass channel (11), the bottom of shock absorber (12) is provided with throttle compensating valve (5) and compression valve (6), bypass channel (11) is provided with check valve (8), unidirectional volume adjustable hydraulic pump (9) and bi-bit bi-pass change-over valve (10).
2. a kind of control setup suppressing vehicle side turning according to claim 1, is characterized in that: throttle compensating valve (5) and compression valve (6) and oil storage cylinder (7) UNICOM.
3. a kind of control setup suppressing vehicle side turning according to claim 1, is characterized in that: the two ends up and down of bypass channel (11) respectively with epicoele and oil storage cylinder (7) UNICOM of shock absorber (12).
4. a kind of control setup suppressing vehicle side turning according to claim 1, is characterized in that: check valve (8) has two, is arranged on the road junction, two ends of bypass channel (11) respectively.
5. a kind of control setup suppressing vehicle side turning according to claim 1, it is characterized in that: unidirectional volume adjustable hydraulic pump (9) and bi-bit bi-pass change-over valve (10) arrangement are arranged on the middle part of bypass channel (11), and unidirectional volume adjustable hydraulic pump (9) is positioned at the top of bi-bit bi-pass change-over valve (10).
6. suppress a control method for vehicle side turning, it is characterized in that, comprise the steps:
D1. DATA REASONING, records the speed of a motor vehicle by car speed sensor and steering wheel angle sensor
and steering wheel angle
, the initial distance of setting vehicle body and vehicle frame is
;
D2. function design, calculates
functional value, steering wheel angle
just to transfer to the right, transfer to negative left, coefficient
determined by vehicle and road traveling condition, and
,
for vehicle coefficient,
for coefficient of road adhesion;
D3. control is drawn high, when actual vehicle body and vehicle frame distance
and
time, automobile is in the anxious divertical motion of high speed and shock absorber (12) is in ultimate elongation state, now, bypass channel (11) gets involved work, bi-bit bi-pass change-over valve (10) goes to close passage, unidirectional volume adjustable hydraulic pump (9) works, by the epicoele of fluid press-in shock absorber (12) in oil storage cylinder (7), and according to
the size of numerical value controls the size of working flow,
numerical value larger, the fluid that unidirectional volume adjustable hydraulic pump (9) is pressed into is more, until
power cut-off;
D4. compression control, when actual vehicle body and vehicle frame distance
and
time, automobile is in the anxious divertical motion of high speed and this shock absorber (12) is in limited compression state, and now, bi-bit bi-pass change-over valve (10) is often opened, and unidirectional volume adjustable hydraulic pump (9) does not work, and bypass channel (11) does not work, and shock absorber (12) normally works;
D5. recover normal, when
time, bypass channel (11) does not work, and shock absorber (12) normally works, automobile normal running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871207.0A CN105346351A (en) | 2015-12-02 | 2015-12-02 | Control device for inhibiting automobile side turning and control method for inhibiting automobile side turning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871207.0A CN105346351A (en) | 2015-12-02 | 2015-12-02 | Control device for inhibiting automobile side turning and control method for inhibiting automobile side turning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105346351A true CN105346351A (en) | 2016-02-24 |
Family
ID=55322478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510871207.0A Pending CN105346351A (en) | 2015-12-02 | 2015-12-02 | Control device for inhibiting automobile side turning and control method for inhibiting automobile side turning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105346351A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678484A (en) * | 2016-11-17 | 2017-05-17 | 国家电网公司 | High-energy pipeline impact power absorber in power planning |
| CN113944718A (en) * | 2021-09-08 | 2022-01-18 | 华中科技大学 | Shock-absorbing adjustable damper for automobile seat |
| CN114179818A (en) * | 2021-12-31 | 2022-03-15 | 江苏理工学院 | Intelligent automobile transverse control method based on adaptive preview time and sliding mode control |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050071060A1 (en) * | 2003-09-11 | 2005-03-31 | Tenneco Automotive Operating Company, Inc. | Linear control of an automobile suspension |
| EP2000336A1 (en) * | 2007-06-07 | 2008-12-10 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Suspension system |
| CN103057378A (en) * | 2013-01-11 | 2013-04-24 | 浙江吉利汽车研究院有限公司杭州分公司 | Vehicle body height control device and method |
| CN103161869A (en) * | 2012-09-07 | 2013-06-19 | 伊卡路斯(苏州)车辆系统有限公司 | Infinite damping shock absorption system |
| CN103470673A (en) * | 2013-09-24 | 2013-12-25 | 吉林大学 | Pump type damper and active cross-linked energy-regenerative suspension system |
| CN103991352A (en) * | 2013-02-14 | 2014-08-20 | 福特全球技术公司 | Wheel suspension unit with stabilizer |
-
2015
- 2015-12-02 CN CN201510871207.0A patent/CN105346351A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050071060A1 (en) * | 2003-09-11 | 2005-03-31 | Tenneco Automotive Operating Company, Inc. | Linear control of an automobile suspension |
| EP2000336A1 (en) * | 2007-06-07 | 2008-12-10 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Suspension system |
| CN103161869A (en) * | 2012-09-07 | 2013-06-19 | 伊卡路斯(苏州)车辆系统有限公司 | Infinite damping shock absorption system |
| CN103057378A (en) * | 2013-01-11 | 2013-04-24 | 浙江吉利汽车研究院有限公司杭州分公司 | Vehicle body height control device and method |
| CN103991352A (en) * | 2013-02-14 | 2014-08-20 | 福特全球技术公司 | Wheel suspension unit with stabilizer |
| CN103470673A (en) * | 2013-09-24 | 2013-12-25 | 吉林大学 | Pump type damper and active cross-linked energy-regenerative suspension system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678484A (en) * | 2016-11-17 | 2017-05-17 | 国家电网公司 | High-energy pipeline impact power absorber in power planning |
| CN113944718A (en) * | 2021-09-08 | 2022-01-18 | 华中科技大学 | Shock-absorbing adjustable damper for automobile seat |
| CN114179818A (en) * | 2021-12-31 | 2022-03-15 | 江苏理工学院 | Intelligent automobile transverse control method based on adaptive preview time and sliding mode control |
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Application publication date: 20160224 |