CN104648073B - A kind of variable suspension of electromagnetic type and control method thereof - Google Patents
A kind of variable suspension of electromagnetic type and control method thereof Download PDFInfo
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- CN104648073B CN104648073B CN201510056959.1A CN201510056959A CN104648073B CN 104648073 B CN104648073 B CN 104648073B CN 201510056959 A CN201510056959 A CN 201510056959A CN 104648073 B CN104648073 B CN 104648073B
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Abstract
The present invention relates to a kind of variable suspension of electromagnetic type and control method thereof, the variable suspension of this electromagnetic type includes the sleeve being fixed on axletree and the cylindrical bar being fixed on vehicle frame, it is connected between described axletree and vehicle frame and has the spring supporting vehicle frame, described cylindrical bar lower end extend in sleeve and the two is slidably matched, the first iron-core coil circuit cylindrical bar being attracted downwards or upwards repelling it is provided with in described sleeve, first iron core lower end of described first iron-core coil circuit is fixed on axletree, first iron core upper end of described first iron-core coil circuit is relative with cylindrical bar lower end, described sleeve upper end inwall is provided with the spacing electromagnetic valve for pinning cylindrical bar.The present invention uses lower-cost Electromagnetic Control, fast response time, controls sensitive and accurate, can be according to the signals collecting of sensor, automatically change suspension height, for the low road clearance meeting high road clearance during hill path travels, run at high speed on flat road, meet contemporary automotive development trend.
Description
Technical field
The present invention relates to automobile technical field, particularly a kind of variable suspension of electromagnetic type and control method thereof.
Background technology
Under different road conditions, there is different requirements for gap between ground and automobile: under the road conditions run at high speed, need to consider automotive aerodynamics, if at this moment reducing the vehicle body road clearance, car can be allowed more steady, and the speed reached is bigger；When on the road of hollow, need to consider automobile by property, now will raise gap between ground and automobile.
For passive suspension and semi-active suspension, it is to be automatically adjusted bodywork height, it is impossible to meet the requirement to bodywork height under different operating mode, and the comfortableness of passengers inside the car is also had adverse effect in various degree.For Active suspension, relatively common is fluid pressure type Active suspension, and it is mainly depended on pressure pump to pressure chamber air intake-exhaust to change the rigidity of Active suspension, because its cost is high, appears at greatly in luxury car.Therefore, it is necessary to design a kind of lower-cost Active suspension so that low and middle-grade cars also can be automatically adjusted bodywork height.
Summary of the invention
In view of the deficiencies in the prior art, it is an object of the invention to provide a kind of variable suspension of lower-cost electromagnetic type and control method thereof, use electromagnetic type to be automatically adjusted bodywork height, fast response time, speed can not only be improved in the road conditions run at high speed, and meet the property passed through that hill path travels.
To achieve these goals, one technical scheme of the present invention is: a kind of variable suspension of electromagnetic type, including the sleeve being fixed on axletree and the cylindrical bar being fixed on vehicle frame, it is connected between described axletree and vehicle frame and has the spring supporting vehicle frame, described cylindrical bar lower end extend in sleeve and the two is slidably matched, the first iron-core coil circuit cylindrical bar being attracted downwards or upwards repelling it is provided with in described sleeve, first iron core lower end of described first iron-core coil circuit is fixed on axletree, first iron core upper end of described first iron-core coil circuit is relative with cylindrical bar lower end, described sleeve upper end inwall is provided with the spacing electromagnetic valve for pinning cylindrical bar.
Further, induction coil one end ground connection of described first iron-core coil circuit, the induction coil other end of described first iron-core coil circuit connects high input voltage joint, and the high-voltage output connector of described high input voltage joint and the second iron-core coil circuit is connected.
Further, described second iron-core coil circuit includes the second ferrum core, primary coil and secondary coil, described secondary coil and primary coil are rotating around the outside at the second iron core, the cross-sectional area of described secondary coil is less than primary coil, the turn ratio primary coil of described secondary coil is many, the top of described primary coil is in series with relay ground connection, the terminal tandem of described primary coil has rheostat and power supply on vehicle, the electric current of described primary coil is controlled by the electronic control unit of automobile, the top of described secondary coil connects high-voltage output connector, the end of described secondary coil is connected to the top of primary coil.
Further, described electronic control unit receives the signal from automobile sensor, and by being analyzed contrast with " sensor states-electric current " relation of inner setting, send corresponding instruction, change the rheostat resistance of low-voltage circuit so that the electric current of primary coil produces change, and then make the output voltage of secondary coil change, the magnetic field making the first iron core changes, and cylindrical bar is produced captivation or repulsive force, reaches to change the effect of bodywork height.
Further, described sensor includes vehicle body sensor, automobile longitudinal acceleration sensor, vehicle lateral acceleration sensor and crankshaft position sensor.
Further, described cylindrical bar sidewall is provided with the chute that the actuator with spacing electromagnetic valve coordinates, in order to slide up and down in sleeve.
To achieve these goals, the control method that another solution is that the variable suspension of a kind of electromagnetic type of the present invention, use the variable suspension of electromagnetic type as above, when the induction coil of the first iron-core coil circuit inputs the high pressure of change, described first iron core produces corresponding magnetic field, the cylindrical bar being fixed on vehicle frame to be produced downward captivation or repulsive force upwards, and then adjust the height of vehicle frame.
Compared with prior art, the method have the advantages that the variable suspension of this electromagnetic type uses lower-cost Electromagnetic Control, fast response time, control sensitive and accurate, suspension height can be automatically changed, for the low road clearance meeting high road clearance during hill path travels, run at high speed on flat road according to the signals collecting of sensor, meet contemporary automotive development trend, the technology of an automatic change suspension height is provided for following pilotless automobile.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of the second iron-core coil circuit.
In figure: 1-axletree, 2-the first iron core, the spacing electromagnetic valve of 3-, 4-sleeve, 5-cylindrical bar, 6-vehicle frame, 7-spring, 8-the second iron core, 9-relay, 10-rheostat, 11-primary coil, 12-secondary coil, 13-power supply on vehicle, Vi-high input voltage joint, Vo-high-voltage output connector.
Detailed description of the invention
For the features described above of the present invention and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing, it is described in detail below.
As shown in Figure 1 and 2, a kind of variable suspension of electromagnetic type, including the sleeve 4 being fixed on axletree 1 and the cylindrical bar 5 being fixed on vehicle frame 6, it is connected between described axletree 1 and vehicle frame 6 and has the spring 7 supporting vehicle frame 6, in described cylindrical bar 5 lower end extend into sleeve 4 and the two is slidably matched, the first iron-core coil circuit cylindrical bar 5 being attracted downwards or upwards repelling it is provided with in described sleeve 4, first iron core 2 lower end of described first iron-core coil circuit is fixed on axletree 1, first iron core 2 upper end of described first iron-core coil circuit is relative with cylindrical bar 5 lower end, described sleeve 4 upper end inwall is provided with the spacing electromagnetic valve 3 for pinning cylindrical bar 5.
In the present embodiment, induction coil one end ground connection of described first iron-core coil circuit, the induction coil other end of described first iron-core coil circuit connects high input voltage joint Vi, the high-voltage output connector Vo of described high input voltage joint Vi and the second iron-core coil circuit and is connected；Described second iron-core coil circuit is similar to ignition coil circuit, to export high pressure.
nullIn the present embodiment，Described second iron-core coil circuit includes the second iron core 8、Primary coil 11 and secondary coil 12，Described secondary coil 12 and primary coil 11 are wound on the outside of the second iron core 8 respectively with equidirectional，The direction of winding of described primary coil 11 and secondary coil 12 are identical and are wound on the outside of secondary coil 12，The cross-sectional area of described secondary coil 12 is less than primary coil 11，The turn ratio primary coil more than 11 of described secondary coil 12，The top of described primary coil 11 is in series with relay 9 ground connection，The terminal tandem of described primary coil 11 has rheostat 10 and power supply on vehicle 13，The electric current of described primary coil 11 is controlled by the electronic control unit (ECU) of automobile，The top of described secondary coil 12 connects high-voltage output connector Vo，The end of described secondary coil 12 is connected to the top of primary coil 11.
In the present embodiment, described electronic control unit receives the signal from automobile sensor, and by being analyzed contrast with " sensor states-electric current " relation of inner setting, send corresponding instruction, change rheostat 10 resistance of low-voltage circuit so that the electric current of primary coil 11 produces change, and then make the output voltage of secondary coil 12 change, the magnetic field making the first iron core 2 changes, and cylindrical bar 5 is produced captivation or repulsive force, reaches to change the effect of bodywork height.
Owing to the second iron-core coil circuit uses secondary coil, the induction coil voltage moment of the first iron-core coil circuit can be made to reach several kilovolts, allow the first iron core 2 have enough magnetic force, cylindrical bar 5 is carried out action.Owing to voltage general on car is 24V, therefore one-level coil cannot produce enough magnetic force by the change of electric current in circuit.And in the circuit of low supply voltage, using secondary coil, its instantaneous voltage can reach several kilovolts, is provided that required electromagnetic force.
In the present embodiment, described sensor includes vehicle body sensor, automobile longitudinal acceleration sensor, vehicle lateral acceleration sensor and crankshaft position sensor.By the collection of these sensor signals, the change of automobile road conditions can be reacted to electronic control unit quickly and accurately, after the signal of each sensor acquisition can be analyzed by electronic control unit, to actuator one instruction, change the resistance value of the second iron-core coil circuit low-pressure side, to adapt under each operating mode the requirement to suspension height.
In the present embodiment, when electric current during electronic control unit does not send instruction change the second iron-core coil circuit, described spacing electromagnetic valve 3 automatic spring, pins cylindrical bar 5 so that cylindrical bar 5 the most ceaselessly will not slide because not retraining.Described cylindrical bar 5 sidewall is provided with the chute that the actuator with spacing electromagnetic valve 3 matches, in order to slide up and down in sleeve 4.Owing to cylindrical bar 5 is connected with vehicle body (i.e. vehicle frame 6), therefore vehicle body can move along with the motion of cylindrical bar 5, changes bodywork height in time, to adapt to the road clearance requirement of different operating mode.When electromagnetic force is in balance with spring 7, described spacing electromagnetic valve 3 auto lock, cylindrical bar 5 and then road conditions will not be made to slide up and down.
As shown in Figure 1 and 2, a kind of control method of the variable suspension of electromagnetic type, use the variable suspension of electromagnetic type as above, when the induction coil of the first iron-core coil circuit inputs the high pressure of change, described first iron core 2 produces corresponding magnetic field, the cylindrical bar 5 being fixed on vehicle frame 6 to be produced downward captivation or repulsive force upwards, and then adjust the height of vehicle frame 6.
In vehicle traveling process, according to the state of each sensor of collection, ECU, by analyzing, instructs accordingly to controller, changes rheostat 10 resistance in circuit, so that electric current changes.When electric current occurs to become big so that the magnetic force of the first iron core 2 increases, and just adsorbs the cylindrical bar 5 that can slide up and down so that it is move downward, when magnetic force cannot overcome cylindrical bar 5 to move downward, spacing electromagnetic valve 3 auto lock, so that vehicle body reduces.When electric current diminishes, the magnetic force making the first iron core 2 reduces, 3 one signals of spacing electromagnetic valve can be given the most simultaneously, it is allowed first to separate with the draw-in groove in cylindrical bar 5, make cylindrical bar 5 upward sliding, when magnetic force is just equal with the elastic force of spring 7, spacing electromagnetic valve 3 automatic spring, block cylindrical bar 5, so that vehicle body raises.
The present invention does not limit to above-mentioned preferred forms, and anyone can draw other variable suspension of various forms of electromagnetic types and control methods thereof under the enlightenment of the present invention.All impartial changes done according to scope of the present invention patent and modification, all should belong to the covering scope of the present invention.
Claims (5)
1. the variable suspension of electromagnetic type, it is characterized in that: include the sleeve being fixed on axletree and the cylindrical bar being fixed on vehicle frame, it is connected between described axletree and vehicle frame and has the spring supporting vehicle frame, described cylindrical bar lower end extend in sleeve and the two is slidably matched, the first iron-core coil circuit cylindrical bar being attracted downwards or upwards repelling it is provided with in described sleeve, first iron core lower end of described first iron-core coil circuit is fixed on axletree, first iron core upper end of described first iron-core coil circuit is relative with cylindrical bar lower end, described sleeve upper end inwall is provided with the spacing electromagnetic valve for pinning cylindrical bar；Induction coil one end ground connection of described first iron-core coil circuit, the induction coil other end of described first iron-core coil circuit connects high input voltage joint, and the high-voltage output connector of described high input voltage joint and the second iron-core coil circuit is connected；Described second iron-core coil circuit includes the second ferrum core, primary coil and secondary coil, described secondary coil and primary coil are rotating around the outside at the second iron core, the cross-sectional area of described secondary coil is less than primary coil, the turn ratio primary coil of described secondary coil is many, the top of described primary coil is in series with relay ground connection, the terminal tandem of described primary coil has rheostat and power supply on vehicle, the electric current of described primary coil is controlled by the electronic control unit of automobile, the top of described secondary coil connects high-voltage output connector, the end of described secondary coil is connected to the top of primary coil.
The variable suspension of electromagnetic type the most according to claim 1, it is characterized in that: described electronic control unit receives the signal from automobile sensor, and by being analyzed contrast with " sensor states-electric current " relation of inner setting, send corresponding instruction, change the rheostat resistance of low-voltage circuit, the electric current making primary coil produces change, and then make the output voltage of secondary coil change, the magnetic field making the first iron core changes, cylindrical bar is produced captivation or repulsive force, reaches to change the effect of bodywork height.
The variable suspension of electromagnetic type the most according to claim 2, it is characterised in that: described sensor includes vehicle body sensor, automobile longitudinal acceleration sensor, vehicle lateral acceleration sensor and crankshaft position sensor.
The variable suspension of electromagnetic type the most according to claim 1, it is characterised in that: described cylindrical bar sidewall is provided with the chute that the actuator with spacing electromagnetic valve coordinates, in order to slide up and down in sleeve.
5. the control method of the variable suspension of electromagnetic type, it is characterized in that: use the variable suspension of electromagnetic type as according to any one of Claims 1-4, when the induction coil of the first iron-core coil circuit inputs the high pressure of change, described first iron core produces corresponding magnetic field, the cylindrical bar being fixed on vehicle frame to be produced downward captivation or repulsive force upwards, and then adjust the height of vehicle frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510056959.1A CN104648073B (en) | 2015-02-04 | 2015-02-04 | A kind of variable suspension of electromagnetic type and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510056959.1A CN104648073B (en) | 2015-02-04 | 2015-02-04 | A kind of variable suspension of electromagnetic type and control method thereof |
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| CN104648073A CN104648073A (en) | 2015-05-27 |
| CN104648073B true CN104648073B (en) | 2016-10-05 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216892B (en) * | 2015-10-03 | 2018-01-02 | 上海大学 | A kind of caterpillar mobile robot suspension of the active control of rigidity half |
| CN106004306B (en) * | 2016-07-04 | 2018-09-18 | 浙江吉利新能源商用车有限公司 | Magnetic suspension suspension and vehicle with it |
| CN106427449B (en) * | 2016-07-04 | 2018-09-18 | 浙江吉利新能源商用车有限公司 | Magnetic suspension suspension and vehicle with it |
| CN112848831B (en) * | 2019-11-27 | 2023-01-06 | 比亚迪股份有限公司 | Suspension device for vehicle and control method thereof |
| CN112324890B (en) * | 2020-11-04 | 2022-03-15 | 福建中维动力科技股份有限公司 | Electricelectric moves ore deposit derailleur suspension structure for card |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3770290A (en) * | 1972-01-24 | 1973-11-06 | F Bottalico | Vehicle shock absorber |
| JP2541353B2 (en) * | 1990-09-18 | 1996-10-09 | 三菱自動車工業株式会社 | Active suspension system for vehicles |
| CN100372697C (en) * | 2004-02-12 | 2008-03-05 | 徐景楼 | Electrically controlled suspension frame for automobile |
| CN100484787C (en) * | 2005-04-14 | 2009-05-06 | 重庆大学 | Controllable automobile magnetic rhological absorber with height adjusting function |
| CN103185098B (en) * | 2011-12-31 | 2017-02-08 | 上海汽车集团股份有限公司 | Electromagnetic spring vibration absorber |
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Granted publication date: 20161005 Termination date: 20190204 |