CN101817294A - Automobile shock-stiffness real-time regulating and controlling system and control method thereof - Google Patents
Automobile shock-stiffness real-time regulating and controlling system and control method thereof Download PDFInfo
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- CN101817294A CN101817294A CN 201010162545 CN201010162545A CN101817294A CN 101817294 A CN101817294 A CN 101817294A CN 201010162545 CN201010162545 CN 201010162545 CN 201010162545 A CN201010162545 A CN 201010162545A CN 101817294 A CN101817294 A CN 101817294A
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Abstract
The invention relates to an automobile shock-stiffness real-time regulating and controlling system and a method thereof. The system comprises a hydraulic pump, four hydraulic cylinders mounted on the top of the four wheel shock absorbers of an automobile, a hydraulic distribution valve in linkage with the steering linkage of the automobile for controlling all hydraulic cylinders, a hydraulic distribution valve in linkage with a brake pedal for controlling front hydraulic cylinders, and a hydraulic distribution valve in linkage with an accelerator pedal for controlling rear hydraulic cylinders. When the automobile steers and the automobile speed is up to a set value, hydraulic cylinders on the two wheel shock absorbers outside the automobile is controlled to act to enhance the stiffness of outside shock absorbers; when the brake pedal is stamped down, the hydraulic cylinders on the front wheel shock absorbers are controlled to act to enhance the stiffness of front side shock absorbers; and when the accelerator pedal is stamped down, the hydraulic cylinders on the rear wheel shock absorbers are controlled to act to enhance the stiffness of rear side shock absorbers. In the invention, the stiffness of shock absorbers are regulated according to different driving states of the automobile, thus greatly improving the driving performance of the automobile. The invention has simple structure and small power consumption on engines.
Description
Technical field
The present invention relates to a kind of automobile shock-stiffness real-time system, belong to the cushion technique field.
Background technology
The bumper of existing automobile generally is made up of spring and hydraulic damping oil cylinder, and the hardness of its damper spring is fixed, and is generally determined by auto vendor, no longer regulates after dispatching from the factory.
Inclination can take place in automobile when turning, the fast more inclination of the speed of a motor vehicle is serious more, even can overturn.Equally, automobile has " nodding " or " new line " phenomenon when brake or acceleration.
In order to solve problem such as vehicle tempo turn inclination, a lot of car companys have proposed the solution of oneself.Used the vehicle balance module as Mercedes Benz, promptly put a weight in the vehicle body center, Ackermann steer angle reaches the purpose that reduces inclination by the position that changes weight, though this method is simple, effect is not ideal enough.
Summary of the invention
The present invention aims to provide a kind of automobile shock-stiffness real-time system and control method thereof, and it reaches the purpose that reduces turning inclination amplitude, improves road holding and travelling comfort by regulating the hardness of corresponding damping spring.
The technical solution adopted in the present invention is:
A kind of automobile shock-stiffness real-time system, comprising: a Hydraulic Pump is used to drive hydraulic actuating cylinder; Four hydraulic actuating cylinders that are installed in the top of four the wheel bumpers in automobile front and back respectively; A hydraulic distributing valve that is used to control described each hydraulic actuating cylinder, the Linkage steering interlock of this hydraulic distributing valve and automobile, when motor turning, the hydraulic actuating cylinder on these two wheel bumpers in hydraulic distributing valve Control of Automobile outside is done the elongation action, to increase the hardness of two bumpers in the outside.
Further:
Also comprise the hydraulic distributing valve that is used to control two preceding hydraulic actuating cylinders, itself and brake pedal link, when stepping on brake pedal, the hydraulic actuating cylinder before the control on two front-wheel bumpers of the hydraulic distributing valve of hydraulic actuating cylinder control is done the elongation action, to increase the hardness of front side bumper.
Also comprise the hydraulic distributing valve that is used to control hydraulic actuating cylinder after two, itself and Das Gaspedal link, when stepping on the throttle pedal, the hydraulic actuating cylinder on two rear wheel shock-absorbing devices of hydraulic distributing valve control of control back hydraulic actuating cylinder is done the elongation action, to increase the hardness of rear side bumper.
Described each hydraulic distributing valve is connected with physical construction respectively with between the Linkage steering of automobile, brake pedal, the Das Gaspedal.
Described each hydraulic distributing valve is controlled by the electronic type linked system, this electronic type linked system comprises Linkage steering and each action sensor on brake pedal and the Das Gaspedal of being contained in automobile respectively, receives each sensor signal and sends the central process unit of processing signals, by each actuator of central process unit control, each actuator drives cooresponding hydraulic distributing valve.
Further:
Also comprise the car body obliqueness monitoring system, the output of this car body obliqueness monitoring system connects the input of described central process unit, and when body inclination surpassed the angle of setting, central process unit was controlled corresponding actr primer fluid cylinder pressure, adjusts car body obliqueness to setting value.
Also comprise the system switching that is opened and closed by car speed sensor control, the output of this car speed sensor connects described central process unit, and system is provided with manually, automatic and close three kinds of patterns, and when switch was set in manual mode, system was with the gross vehicle switch open or close; When switch was set in automatic mode, system started working when the speed of a motor vehicle reaches 20Km/h, when the speed of a motor vehicle during less than 10Km/h system quit work; When switch was set in " shut " mode", system was in closed condition, but system will move automatically when the speed of a motor vehicle reaches 100Km/h, up to the speed of a motor vehicle during less than 40Km/h system just quit work.
A kind of method of real-time monitoring automobile shock-stiffness, it at first respectively installs hydraulic actuating cylinder at the top of four the wheel bumpers in automobile front and back, control the hydraulic actuating cylinder at each wheel bumper top then in the following manner: when motor turning and the speed of a motor vehicle reach setting speed, do the elongation action by the hydraulic actuating cylinder on two the wheel bumpers in the hydraulic distributing valve Control of Automobile outside, to increase the hardness of two bumpers in the outside; When the speed of a motor vehicle reaches setting speed and steps on brake pedal, do the elongation action by the hydraulic actuating cylinder on two front-wheel bumpers of hydraulic distributing valve Control of Automobile, to increase the hardness of two bumpers in front side; When stepping on the throttle pedal, do the elongation action by the hydraulic actuating cylinder on two rear wheel shock-absorbing devices of hydraulic distributing valve Control of Automobile, to increase the hardness of two bumpers of rear side.
Advantage of the present invention is:
1. in the vehicle ' process, system of the present invention can regulate bumper hardness according to different motoring conditions, thereby improves the rideability of vehicle greatly;
2. system of the present invention keeps damping spring, and ground-surface jolts and still absorbed by damping spring and damper, and the hydraulic ram at bumper top only is responsible for increasing the hardness of damping spring, so very little to engine power consumption;
3. system architecture of the present invention is simple, thereby cost is low, and the market competitiveness is arranged very much.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is that hydraulic ram does not move and the variation diagram of damping spring during full action;
Fig. 2 is the control sketch of system of the present invention;
The scheme drawing of system's control left side bumper and right side bumper when Fig. 3 is automobile right-hand corner and turnon left;
The scheme drawing of system's control front side bumper when Fig. 4 is braking automobile;
The scheme drawing of system's control rear side bumper when Fig. 5 is car acceleration;
Fig. 6-Fig. 8 is respectively the conversion proportional curve of turning to of configuring in central process unit, throttle and brake.
The specific embodiment
As shown in Figure 1, the present invention increases an annular hydraulic fluid cylinder 2 at the top of common bumper, compresses by 2 pairs of damping springs 1 of hydraulic ram, so that the bumper hardening.The left side bumper is the state of hydraulic ram when not moving among the figure, the state the when right side is hydraulic ram full action (elongation), and after the visible hydraulic ram action, damping spring is compressed, its elastic force increase, the also corresponding hardening of bumper.
The actuating length amplitude of direction of passage dish, brake pedal and Das Gaspedal in running car, corresponding hardness of regulating corresponding damping spring reaches the purpose that reduces turning inclination amplitude, improves road holding and travelling comfort.Such as, when the automobile turnon left, at this moment increase the hardness of automobile right side damping spring, just can reduce the body roll amplitude; When stepping on the brake pedal formula, increase the hardness of the preceding damping spring of automobile, can reduce " nodding " trend of vehicle, improve the braking quality and the travelling comfort of vehicle; When stepping on the throttle pedal, increase the hardness of back damping spring, just can reduce the trend of vehicle " new line ".
System architecture of the present invention is simple, only need increase an annular hydraulic fluid cylinder at common bumper top, realize compression to damping spring, to reach the purpose that makes the bumper hardening, respectively increase a distributing valve at bearing circle, brake pedal and Das Gaspedal place, on driving engine, increase a Hydraulic Pump or establish an electric hydraulic pump separately, just can realize the function of system of the present invention.System of the present invention is applicable to the bumper that uses the spiral damping spring.
Describe in detail below in conjunction with accompanying drawing.
As shown in Figure 2, system of the present invention comprises a Hydraulic Pump, three hydraulic distributing valves, four hydraulic actuating cylinders.Wherein:
Hydraulic Pump is used to drive hydraulic actuating cylinder, and it can be an electric hydraulic pump, also can be by engine drive;
Four hydraulic actuating cylinders are installed in the top of four the wheel bumpers 3 in automobile front and back respectively, and it is the annular hydraulic fluid cylinder;
Three hydraulic distributing valves 6 are by oil pipe 4 each hydraulic actuating cylinder of control, and hydraulic distributing valve 6 is selected the finished product full scale hydraulic distributing valve on the existing market for use.
In three hydraulic distributing valves, a hydraulic distributing valve is the bidirectional hydraulic distributing valve, front-wheel steering connecting rod 8 interlocks of itself and automobile.When motor turning, the hydraulic actuating cylinder on these two wheel bumpers in hydraulic distributing valve Control of Automobile outside is done the elongation action, to increase the hardness of two bumpers in the outside, reduces the body roll amplitude.As shown in Figure 3, when left side figure is the automobile right-hand corner, bumper hardening before and after this hydraulic distributing valve control left side; The scheme drawing of bumper before and after this hydraulic distributing valve control right side when right figure is turnon left.
Another hydraulic distributing valve is unidirectional hydraulic distributing valve, is used to control two preceding hydraulic actuating cylinders, and itself and brake pedal 7 link.As shown in Figure 4, when stepping on brake pedal, the hydraulic actuating cylinder on two front-wheel bumpers of this hydraulic distributing valve control is done the elongation action, to increase the hardness of front side bumper, reduces " nodding " trend of vehicle.
The 3rd hydraulic distributing valve also is unidirectional hydraulic distributing valve, be used to control two after hydraulic actuating cylinder, 5 interlocks of itself and Das Gaspedal.As shown in Figure 5, when stepping on the throttle pedal, the hydraulic actuating cylinder on two rear wheel shock-absorbing devices of this hydraulic distributing valve control is done the elongation action, to increase the hardness of rear side bumper, reduces the trend of vehicle " new line ".
Native system can be divided into electronic type and mechanical type according to the interlock mode.
The electronic type linked system is made of action sensor, central process unit and actuator.Each hydraulic distributing valve is controlled by the electronic type linked system, this electronic type linked system comprises Linkage steering and each action sensor (position-type sensor) on brake pedal and the Das Gaspedal of being contained in automobile respectively, receives each sensor signal and sends the central process unit of processing signals, by each actuator of central process unit control, each actuator drives cooresponding hydraulic distributing valve.Be connected by adjustable connecting-rod between actr and the hydraulic distributing valve.
Steering curve, throttle curve and the curve that brakes (as Fig. 6-shown in Figure 8) can freely be set in electronic type interlock, that is to say can be according to vehicle condition or driver drives vehicle custom, freely set turn to, the movement range of throttle and brake is with respect to the ratio of the movement range of hydraulic ram.Action sensor is installed in Linkage steering, Das Gaspedal and brake pedal place, be used to gather the movement range of place of erection, and a signal of gathering passes to central process unit, after central process unit is received signal, according to the conversion ratio curve processing signal that configures in advance, deliver to actuator then, drive the full scale hydraulic distributing valve, finish the action of hydraulic ram by actuator.
For turn to, throttle and brake curve, initial value of default, and be provided with " recovery initial value " button.The gradient of curve is set positive and negative two limits, and centre portion can freely be provided with by-100% ~+100%, and as be the direct proportion curve when being set to 0, perhaps by several groups of numerical value of factory settings, the user directly selects for use and gets final product, and has removed the process of own setting from; Also can manually click or drag slope of curve is set, equally also can configure many group numerical value in advance,, select voluntarily by the user to adapt to different road surfaces and vehicle condition by producer by the touch-screen on the automobile console.(illustrate: this is provided with the EQ (balancer) that pattern just is equivalent in the sound system and is provided with, can each frequency range sound size of own manual regulation, also can be written into setting value, and when being written into " allusion " pattern, each frequency range volume has configured.)
It is simple that mechanical type interlock is wanted relatively, and the physical construction with the adjustable connecting-rod class between Linkage steering, Das Gaspedal and brake pedal and the full scale hydraulic distributing valve is connected, and conversion ratio is like this fixed, but owing to simple in structure, so cost is lower.
The present invention can be divided into standard edition, comfortable version, city page and simplification version again according to the system complex degree.Standard edition comprise to turn to, the response of throttle and these three actions of brake; City page comprises turning to and the response of these two actions of braking; Simplify version only to having turned to response.
Comfortable version is except to turning to, the response of throttle and these three actions of brake, also having increased the car body obliqueness monitoring system, can monitor the angle of inclination (comprise lean forward, hypsokinesis, "Left"-deviationist and Right deviation) of vehicle body in real time.The output of this car body obliqueness monitoring system connects the input of central process unit, in case surpass the limit angle of inclination that configures, central process unit is just controlled corresponding actr primer fluid cylinder pressure, adjusts the body inclination angle to setting value.The car body obliqueness monitoring system also has wheelbase and overall width by the length of four Shock absorbers of measuring vehicle, just can calculate the angle of inclination and the direction of vehicle.The wheelbase of vehicle and overall width are fixed values, so only need measure the length of four Shock absorbers, four rang sensors are installed on four Shock absorbers promptly, just can calculate the body inclination angle and direction by vehicle-mounted computer.Perhaps also can use the finished product inclination angle detection device on the present market.
The present invention is provided with system switching in operator's compartment, be decided to be " manually ", " automatically " and " closing " pattern, and switch links with vehicle speed sensor again, opens or shutdown system under certain speed of a motor vehicle.The average speed indicator that this car speed sensor uses vehicle body to carry gets final product.If pointer average speed indicator then at corresponding velocity amplitude place installation site sensor, when pointer arrives this position, promptly sends unblanking or shutdown system; If Electronic Speedometer, but the setting speed value is sent unblanking or shutdown system when reaching this numerical value.When switch was set in " manually " pattern, system was with the gross vehicle switch open or close; For energy-conservation consideration when switch is set in " automatically " pattern, is started working just have only when the speed of a motor vehicle reaches 20Km/h, when the speed of a motor vehicle quits work during less than 10Km/h; For security consideration, when switch was set in " cutting out " pattern, even system is in closed condition, in case the speed of a motor vehicle reaches 100Km/h, system will move automatically, just up to the speed of a motor vehicle during less than 40Km/h system can quit work.
Simply introduce control method of the present invention at last again.
At first hydraulic actuating cylinder is respectively installed at the top of four wheel bumpers before and after automobile, control the hydraulic actuating cylinder at each wheel bumper top then in the following manner: when motor turning and the speed of a motor vehicle reach setting speed, do the elongation action by the hydraulic actuating cylinder on two the wheel bumpers in the hydraulic distributing valve Control of Automobile outside, to increase the hardness of two bumpers in the outside; When the speed of a motor vehicle reaches setting speed and steps on brake pedal, do the elongation action by the hydraulic actuating cylinder on two front-wheel bumpers of hydraulic distributing valve Control of Automobile, to increase the hardness of two bumpers in front side; When stepping on the throttle pedal, do the elongation action by the hydraulic actuating cylinder on two rear wheel shock-absorbing devices of hydraulic distributing valve Control of Automobile, to increase the hardness of two bumpers of rear side.
In addition, also can when body inclination surpasses the angle of setting, do the elongation action,, arrive setting value thereby adjust car body obliqueness to increase the hardness of this bumper by car body obliqueness monitoring system monitoring body inclination situation by the hydraulic actuating cylinder of controlling on the corresponding bumper.
Claims (10)
1. automobile shock-stiffness real-time system is characterized in that comprising:
A Hydraulic Pump is used to drive hydraulic actuating cylinder;
Four hydraulic actuating cylinders that are installed in the top of four the wheel bumpers in automobile front and back respectively;
A hydraulic distributing valve that is used to control described each hydraulic actuating cylinder, the Linkage steering interlock of this hydraulic distributing valve and automobile, when motor turning, the hydraulic actuating cylinder on these two wheel bumpers in hydraulic distributing valve Control of Automobile outside is done the elongation action, to increase the hardness of two bumpers in the outside.
2. automobile shock-stiffness real-time as claimed in claim 1 system is characterized in that:
Also comprise the hydraulic distributing valve that is used to control two preceding hydraulic actuating cylinders, itself and brake pedal link, when stepping on brake pedal, the hydraulic actuating cylinder before the control on two front-wheel bumpers of the hydraulic distributing valve of hydraulic actuating cylinder control is done the elongation action, to increase the hardness of front side bumper.
3. automobile shock-stiffness real-time as claimed in claim 2 system is characterized in that:
Also comprise the hydraulic distributing valve that is used to control hydraulic actuating cylinder after two, itself and Das Gaspedal link, when stepping on the throttle pedal, the hydraulic actuating cylinder on two rear wheel shock-absorbing devices of hydraulic distributing valve control of control back hydraulic actuating cylinder is done the elongation action, to increase the hardness of rear side bumper.
4. automobile shock-stiffness real-time as claimed in claim 3 system is characterized in that:
Described each hydraulic distributing valve is connected with physical construction respectively with between the Linkage steering of automobile, brake pedal, the Das Gaspedal.
5. automobile shock-stiffness real-time as claimed in claim 3 system is characterized in that:
Described each hydraulic distributing valve is controlled by the electronic type linked system, this electronic type linked system comprises Linkage steering and each action sensor on brake pedal and the Das Gaspedal of being contained in automobile respectively, receives each sensor signal and sends the central process unit of processing signals, by each actuator of central process unit control, each actuator drives cooresponding hydraulic distributing valve.
6. automobile shock-stiffness real-time as claimed in claim 5 system is characterized in that:
Also comprise the car body obliqueness monitoring system, the output of this car body obliqueness monitoring system connects the input of described central process unit, and when body inclination surpassed the angle of setting, central process unit was controlled corresponding actr primer fluid cylinder pressure, adjusts car body obliqueness to setting value.
7. as claim 5 or 6 described automobile shock-stiffness real-time systems, it is characterized in that:
Also comprise the system switching that is opened and closed by car speed sensor control, the output of this car speed sensor connects described central process unit, and system is provided with manually, automatic and close three kinds of patterns,
When switch was set in manual mode, system was with the gross vehicle switch open or close;
When switch was set in automatic mode, system started working when the speed of a motor vehicle reaches 20Km/h, when the speed of a motor vehicle during less than 10Km/h system quit work;
When switch was set in " shut " mode", system was in closed condition, but system will move automatically when the speed of a motor vehicle reaches 100Km/h, up to the speed of a motor vehicle during less than 40Km/h system just quit work.
8. the method for a real-time monitoring automobile shock-stiffness is characterized in that:
At first hydraulic actuating cylinder is respectively installed at the top of four wheel bumpers before and after automobile, controls the hydraulic actuating cylinder at each wheel bumper top then in the following manner:
When motor turning and the speed of a motor vehicle reach setting speed, do the elongation action by the hydraulic actuating cylinder on two the wheel bumpers in the hydraulic distributing valve Control of Automobile outside, to increase the hardness of two bumpers in the outside;
When the speed of a motor vehicle reaches setting speed and steps on brake pedal, do the elongation action by the hydraulic actuating cylinder on two front-wheel bumpers of hydraulic distributing valve Control of Automobile, to increase the hardness of two bumpers in front side;
When stepping on the throttle pedal, do the elongation action by the hydraulic actuating cylinder on two rear wheel shock-absorbing devices of hydraulic distributing valve Control of Automobile, to increase the hardness of two bumpers of rear side.
9. the method for real-time monitoring automobile shock-stiffness as claimed in claim 8 is characterized in that:
Also, when body inclination surpasses the angle of setting, do the elongation action,, arrive setting value thereby adjust car body obliqueness to increase the hardness of this bumper by the hydraulic actuating cylinder of controlling on the corresponding bumper by car body obliqueness monitoring system monitoring body inclination situation.
10. the method for real-time monitoring automobile shock-stiffness as claimed in claim 8 is characterized in that:
In operator's compartment, be provided with the switch of controlled hydraulic system, be decided to be manually, automatically and close three kinds of patterns,
When being set in manual mode, hydraulic efficiency pressure system opens and closes with the automobile main supply switch;
When being set in automatic mode, hydraulic efficiency pressure system is just started working when the speed of a motor vehicle reaches 20Km/h, when the speed of a motor vehicle quits work during less than 10Km/h;
When being set in " shut " mode", hydraulic efficiency pressure system is in closed condition, in case but the speed of a motor vehicle reaches 100Km/h, just make hydraulic efficiency pressure system move automatically, up to the speed of a motor vehicle during less than 40Km/h hydraulic efficiency pressure system just quit work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010101625454A CN101817294B (en) | 2010-04-28 | 2010-04-28 | Automobile shock-stiffness real-time regulating and controlling system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101625454A CN101817294B (en) | 2010-04-28 | 2010-04-28 | Automobile shock-stiffness real-time regulating and controlling system and control method thereof |
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| CN101817294A true CN101817294A (en) | 2010-09-01 |
| CN101817294B CN101817294B (en) | 2011-10-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105609A (en) * | 2012-02-24 | 2014-10-15 | 丰田自动车株式会社 | Vehicle behavior control apparatus |
| CN107421561A (en) * | 2016-09-21 | 2017-12-01 | 王禄愚 | Universal bicycle damper monitoring and data analysis system |
| CN108891222A (en) * | 2018-06-15 | 2018-11-27 | 浙江路得坦摩汽车部件股份有限公司 | Electric suspension system adjusts the method and electric suspension system of the state of motor vehicle |
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| JPS60146707A (en) * | 1984-01-10 | 1985-08-02 | Mazda Motor Corp | Rear suspension for automobile |
| DE19649010A1 (en) * | 1996-11-27 | 1998-05-28 | Teves Gmbh Alfred | Hydraulic brake system with an external pressure source |
| CN201633491U (en) * | 2010-04-28 | 2010-11-17 | 马香君 | Real-time regulation and control system for automobile shock-absorbing hardness |
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2010
- 2010-04-28 CN CN2010101625454A patent/CN101817294B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60146707A (en) * | 1984-01-10 | 1985-08-02 | Mazda Motor Corp | Rear suspension for automobile |
| DE19649010A1 (en) * | 1996-11-27 | 1998-05-28 | Teves Gmbh Alfred | Hydraulic brake system with an external pressure source |
| CN201633491U (en) * | 2010-04-28 | 2010-11-17 | 马香君 | Real-time regulation and control system for automobile shock-absorbing hardness |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105609A (en) * | 2012-02-24 | 2014-10-15 | 丰田自动车株式会社 | Vehicle behavior control apparatus |
| CN104105609B (en) * | 2012-02-24 | 2016-07-27 | 丰田自动车株式会社 | Vehicular behavior controls device |
| CN107421561A (en) * | 2016-09-21 | 2017-12-01 | 王禄愚 | Universal bicycle damper monitoring and data analysis system |
| CN108891222A (en) * | 2018-06-15 | 2018-11-27 | 浙江路得坦摩汽车部件股份有限公司 | Electric suspension system adjusts the method and electric suspension system of the state of motor vehicle |
| CN108891222B (en) * | 2018-06-15 | 2021-10-01 | 浙江路得坦摩汽车部件股份有限公司 | Method for adjusting state of motor vehicle by electric control suspension system and electric control suspension system |
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| Publication number | Publication date |
|---|---|
| CN101817294B (en) | 2011-10-12 |
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