CN1559819A - Energy feed back type electro magnetic shock attenuation device for vehicle suspension - Google Patents
Energy feed back type electro magnetic shock attenuation device for vehicle suspension Download PDFInfo
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- CN1559819A CN1559819A CNA2004100135772A CN200410013577A CN1559819A CN 1559819 A CN1559819 A CN 1559819A CN A2004100135772 A CNA2004100135772 A CN A2004100135772A CN 200410013577 A CN200410013577 A CN 200410013577A CN 1559819 A CN1559819 A CN 1559819A
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- vehicle suspension
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- electric generator
- linear electric
- vibration damping
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Abstract
An energy feedback type electromagnetic vibration damper for the suspension of car is composed of a linear electric generator, an electric power transformer and an energy storage unit. The rotor and stator of said linear electric generator are respectively fixed to the upper and lower mass points on spring of car.
Description
Technical field: the present invention relates to the shock attenuation unit that uses on a kind of vehicle.
Background technology: existing vehicle suspension system can be divided into passive suspension, semi-active suspension and active suspension.Passive suspension is owing to need not to import external energy and advantages of simple structure and simple obtains widespread use.Use at present the most generally two types of monotubular formula hydraulic shock absorbers and sleeve-type hydraulic shock absorber.These two kinds of shock absorbers can not be regulated the damping size in the course of the work, can not satisfy the characteristic requirement of Vibration of Vehicle Suspensions control.Therefore, the effectiveness in vibration suppression of passive suspension is relatively poor.Semi-active suspension is made of adjustable spring or recoverable reserves, compares with full active suspension, and great advantage is the work power of consumption of engine hardly, and simple in structure, cost is lower, therefore is subjected to extensive attention.Active suspension adopts active or passive controlled member to form the control system of a closed loop or open loop, make a response according to the state of kinematic motion of Vehicular system and the variation of outside input (road excitation or the operation of chaufeur bearing circle), adjust on one's own initiative and produce required control effort, make suspension be in best vibration damping state all the time.At present, the ACTIVE CONTROL suspension system mainly with highly pressurised liquid as energy, can be divided into flow control type and pressure control type two classes according to its mode.Though the ACTIVE CONTROL suspension system has been applied to real vehicle, its market is popularized and is still had very big difficulty, and this mainly is owing to existing active hydraulic suspension complex structure, cost height, consumes energy greatly.Therefore, the active suspension of the combined vibration-damping method that combines of research passive damping and active damping is one of approach that reduces energy consumption.
Summary of the invention:, provide a kind of simple in structure and can be converted into the electromagnetic vibration damping device that electric energy carries out feedback to energy of vibration in order to overcome existing Pendant Structure Of Vehicle complexity, cost height, defective that power consumption is big.The present invention realizes by following proposal: a kind of vehicle suspension energy feedback type electromagnetic vibration damping device, it comprises linear electric generator 1, power converter 2 and energy storage units 4, the three phase current mouth of linear electric generator 1 is connected on the three phase current input end of power converter 2, and the positive pole of the mouth of power converter 2 and negative pole are connected the positive pole and the negative pole of energy storage units 4 respectively.Shock attenuation unit of the present invention is when using, the mover 1-1 of linear electric generator 1 is fixedly connected on the sprung weight place of vehicle, the stator 1-2 of linear electric generator 1 is fixedly connected on the unsprung weight place of vehicle, so be provided with and work as vehicle in motion as vibrating, relative motion just takes place in mover 1-1 and stator 1-2, thereby change out the electric energy of form of communication, this alternating current changes direct current (DC) into through power converter 2 and is stored in the energy storage units 4, electromagnetic force between mover 1-1 and the stator 1-2 produces shock damping action to the motion between mover 1-1 and the stator 1-2, therefore can vibration damping.Shock absorber of the present invention need not consume energy and can feed back to electric energy the storage battery of vehicle.The present invention uses linear electric generator, constitutes a kind of vehicle suspension energy feedback type electromagnetic vibration damping device, has improved the cushioning performance of suspension, has saved the energy, and has reduced the cost of suspension.This shock attenuation unit both can be applied to vehicle suspension, also can be applied to the vibration damping of seat.Have reasonable in design, simple in structure and have the advantage of big promotional value.
Description of drawings: Fig. 1 is a structural representation of the present invention, and Fig. 2 is the structural representation of embodiment three and embodiment four.
The specific embodiment one: specify present embodiment below in conjunction with Fig. 1.It is made up of linear electric generator 1, power converter 2 and energy storage units 4, the three phase current mouth of linear electric generator 1 is connected on the three phase current input end of power converter 2, and the positive pole of the mouth of power converter 2 and negative pole are connected the positive pole and the negative pole of energy storage units 4 respectively.Linear electric generator 1 is the polyphase ac linear electric generator, can be multi-phase permanent synchronous linear electrical generator or heterogeneous switching magnetic-resistance linear electric generator or polyphase induction minor linear electric generator.The polyphase ac output pig-tail wire of linear electric generator 1 is connected to the input end of power converter 2, power converter 2 is the power electronic equipments that adopt the transformation of electrical energy mode of interchange-DC-to-DC, it carries out rectification, filtering to the output of the polyphase ac of linear electric generator 1 earlier, become the direct current of a certain voltage, utilize the DC/DC changer that the direct current energy that this direct current energy is converted to another kind of voltage, electric current is exported to energy storage units 4 then, energy storage units 4 is storage battery or ultracapacitor, can be with power storage in wherein.
The specific embodiment two: specify present embodiment below in conjunction with Fig. 1.The difference of present embodiment and embodiment one is, it also comprises control unit 3, load transducer 5, acceleration pick-up 6 and displacement pickup 7, the mouth of control unit 3 is connected on the control end A of power converter 2, and three input ends of control unit 3 are connected on the mouth of load transducer 5, acceleration pick-up 6 and displacement pickup 7.Other composition is identical with embodiment one with annexation.Present embodiment is when using, load transducer 5 is used to pick up the signal of the load carrying ability size of vehicle, acceleration pick-up 6 is used to pick up the acceleration signal of the sprung weight of vehicle with respect to the unsprung weight motion, just pick up the acceleration signal of vibration, displacement pickup 7 pick up the direction that is used to judge Vehicular vibration (as sprung weight be downwards or upward movement) signal.According to vehicle capacity size, vibration acceleration and direction of vibration, regulate the power of power converter 2 by control unit 3 to energy storage units 4 accumulation of energys, thereby can regulate the electromagnetic force between the mover 1-1 and stator 1-2 in the linear electric generator 1, also just be equivalent to change the size of dumping force in the shock absorber, thereby make effectiveness in vibration suppression better.The basic thought of suspension Active Vibration Control of the present invention is the response (displacement, speed, acceleration/accel etc.) that utilizes sensor continuous detecting car body, axletree, with the input of these responses as controller, go to control actuation mechanism with the output of controller, between car body and axletree, apply power or moment, to satisfy certain vibration performance index request.
The specific embodiment three: specify present embodiment below in conjunction with Fig. 2.The difference of present embodiment and embodiment two is, power converter 2 is by three-phase bridge rectifier circuit 2-1, capacitor C 1, inductance L 1, capacitor C 2, power transistor G, form with diode D1, three input ends of three-phase bridge rectifier circuit 2-1 are connected on three mouths of linear electric generator 1, the cathode output end of three-phase bridge rectifier circuit 2-1 connects the positive pole of capacitor C 1 and an end of inductance L 1, the other end of inductance L 1 connects the positive pole of diode D1 and the collecting electrode of power transistor G, the negative pole of diode D1 connects the positive pole of capacitor C 2 and the positive pole of energy storage units 4, and the negative pole of energy storage units 4 connects the negative pole of capacitor C 2, the emitter of power transistor G, the cathode output end of the negative pole of capacitor C 1 and three-phase bridge rectifier circuit 2-1.In the present embodiment, power converter 2 is transformed into direct current (DC) to the alternating current that produces on the linear electric generator, thereby finishes controlled reset to linear electric generator 1 by the voltage of regulating output at the base stage increase control signal of power transistor G.Other composition is identical with the specific embodiment two with annexation.
The specific embodiment four: specify present embodiment below in conjunction with Fig. 2.The difference of present embodiment and embodiment three is, control unit 3 is made up of microprocessor 3-1 and driving circuit 3-2, three input ends of microprocessor 3-1 are published in instalments the mouth of lotus sensor 5, acceleration pick-up 6 and displacement pickup 7 respectively, the mouth of microprocessor 3-1 connects the input end of driving circuit 3-2, and the mouth of driving circuit 3-2 connects the base stage of power transistor G.Control unit 3 adopts the disconnected of pulse width modulation mode power controlling transistor G and leads to, employing is picked up vehicle body absolute velocitye or vehicle body to the relative velocity of axletree, the signals such as acceleration/accel of vehicle body by sensor, send instruction through 8 or the microprocessor of 16 bit and carry out control in real time, utilize the control algorithm in the control unit 3 to remove to control power converter 2, the electric energy that electrical generator is sent feeds back in the energy storage units 4, and by controlling the size of generated output power, can control the size of the required attenuation power of vibration damping indirectly, to reach the purpose of vibration damping.
The specific embodiment five: the difference of present embodiment and embodiment three is that described power transistor G selects insulated gate bipolar transistor IGBT, field effect transistor MOSFET or large power triode GTR etc. for use.Other composition is identical with embodiment three with annexation.
Claims (7)
1, a kind of vehicle suspension energy feedback type electromagnetic vibration damping device, it is characterized in that it comprises linear electric generator (1), power converter (2) and energy storage units (4), the three phase current mouth of linear electric generator (1) is connected on the three phase current input end of power converter (2), and the positive pole of the mouth of power converter (2) and negative pole are connected the positive pole and the negative pole of energy storage units (4) respectively.
2, vehicle suspension according to claim 1 is characterized in that with energy feedback type electromagnetic vibration damping device linear electric generator (1) is polyphase ac linear electric generator, multi-phase permanent synchronous linear electrical generator, heterogeneous switching magnetic-resistance linear electric generator or polyphase induction minor linear electric generator.
3, vehicle suspension according to claim 1 is characterized in that with energy feedback type electromagnetic vibration damping device energy storage units (4) is storage battery or ultracapacitor.
4, vehicle suspension according to claim 1 energy feedback type electromagnetic vibration damping device, it is characterized in that it also comprises control unit (3), load transducer (5), acceleration pick-up (6) and displacement pickup (7), the mouth of control unit (3) is connected on the control end A of power converter (2), and three input ends of control unit (3) are connected on the mouth of load transducer (5), acceleration pick-up (6) and displacement pickup (7).
5, vehicle suspension according to claim 1 energy feedback type electromagnetic vibration damping device, it is characterized in that power converter (2) is by three-phase bridge rectifier circuit (2-1), electric capacity (C1), inductance (L1), electric capacity (C2), power transistor (G), and diode (D1) is formed, three input ends of three-phase bridge rectifier circuit (2-1) are connected on three mouths of linear electric generator (1), the cathode output end of three-phase bridge rectifier circuit (2-1) connects the positive pole of electric capacity (C1) and an end of inductance (L1), the other end of inductance (L1) connects the positive pole of diode (D1) and the collecting electrode of power transistor (G), the negative pole of diode (D1) connects the positive pole of electric capacity (C2) and the positive pole of energy storage units (4), and the negative pole of energy storage units (4) connects the negative pole of electric capacity (C2), the emitter of power transistor (G), the cathode output end of the negative pole of electric capacity (C1) and three-phase bridge rectifier circuit (2-1).
6, vehicle suspension according to claim 5 energy feedback type electromagnetic vibration damping device, it is characterized in that control unit (3) is made up of microprocessor (3-1) and driving circuit (3-2), three input ends of microprocessor (3-1) are published in instalments the mouth of lotus sensor (5), acceleration pick-up (6) and displacement pickup (7) respectively, the mouth of microprocessor (3-1) connects the input end of driving circuit (3-2), and the mouth of driving circuit (3-2) connects the base stage of power transistor (G).
7, vehicle suspension according to claim 5 is with energy feedback type electromagnetic vibration damping device, it is characterized in that described power transistor (G) selects igbt, field effect or large power triode for use.
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CNB2004100135772A CN100375683C (en) | 2004-02-23 | 2004-02-23 | Energy feed back type electro magnetic shock attenuation device for vehicle suspension |
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Cited By (15)
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CN101865237A (en) * | 2010-07-01 | 2010-10-20 | 华中科技大学 | Hydraulic electricity generation shock absorber of vehicle |
CN102069765A (en) * | 2009-10-14 | 2011-05-25 | 通用汽车环球科技运作公司 | Self-powered vehicle sensor system |
CN102230508A (en) * | 2011-03-29 | 2011-11-02 | 华中科技大学 | Load gravity center-adaptive active vibration absorber and vibration absorbing system formed by same |
CN102322498A (en) * | 2011-06-03 | 2012-01-18 | 潍柴动力股份有限公司 | Suspension system of diesel engine |
CN102616102A (en) * | 2012-04-12 | 2012-08-01 | 江苏大学 | System and method for recovering automobile braking energy and suspension vibration energy |
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CN103091566A (en) * | 2013-02-03 | 2013-05-08 | 苏州市职业大学 | Measuring system for traffic load road surface vibration energy piezoelectric generation |
CN103116133A (en) * | 2013-02-03 | 2013-05-22 | 苏州市职业大学 | Traffic load pavement vibration energy piezoelectric power generation measuring method and system thereof |
CN103192673A (en) * | 2013-03-29 | 2013-07-10 | 江苏大学 | Semi-active suspension energy-regenerative device of hybrid vehicle |
CN103770594A (en) * | 2014-01-16 | 2014-05-07 | 江苏大学 | Feed-type electromagnetic damping vibration attenuation control method for vehicle suspension |
CN103847454A (en) * | 2014-01-16 | 2014-06-11 | 江苏大学 | Electromagnetic damping vibration reduction device for vehicle suspension |
CN105172507A (en) * | 2015-07-15 | 2015-12-23 | 西南交通大学 | Self-energized magneto-rheological shock absorber system used for automotive suspension |
CN106838091A (en) * | 2017-01-13 | 2017-06-13 | 浙江大学 | Energy conversion mountain bike shock absorber based on electromagnetic damper |
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JP2963183B2 (en) * | 1990-10-15 | 1999-10-12 | 本田技研工業株式会社 | Control method for active suspension |
JPH08324220A (en) * | 1995-06-05 | 1996-12-10 | Toyota Motor Corp | Suspension device for vehicle |
CN2255379Y (en) * | 1995-11-17 | 1997-06-04 | 北京理工大学 | Self-adaptive controlled semi-active suspension device for vehicle |
GB9915709D0 (en) * | 1999-07-05 | 1999-09-08 | Guilden Ltd | Vehicle suspension systems |
CN2428332Y (en) * | 2000-04-28 | 2001-05-02 | 张勇 | Electromagnetic shock-reducer of automobiles |
CN2678939Y (en) * | 2004-02-23 | 2005-02-16 | 哈尔滨工业大学 | Energy feedback type electromagnetic viberation damper for vehicle suspension |
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- 2004-02-23 CN CNB2004100135772A patent/CN100375683C/en not_active Expired - Fee Related
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CN102069765A (en) * | 2009-10-14 | 2011-05-25 | 通用汽车环球科技运作公司 | Self-powered vehicle sensor system |
CN102069765B (en) * | 2009-10-14 | 2014-11-05 | 通用汽车环球科技运作公司 | Self-powered vehicle sensor system |
CN102812621B (en) * | 2010-03-16 | 2015-12-02 | 孙春植 | The suspension of vehicle |
CN102812621A (en) * | 2010-03-16 | 2012-12-05 | 孙春植 | Suspension System For Vehicle |
CN101865237A (en) * | 2010-07-01 | 2010-10-20 | 华中科技大学 | Hydraulic electricity generation shock absorber of vehicle |
CN102230508A (en) * | 2011-03-29 | 2011-11-02 | 华中科技大学 | Load gravity center-adaptive active vibration absorber and vibration absorbing system formed by same |
CN102322498A (en) * | 2011-06-03 | 2012-01-18 | 潍柴动力股份有限公司 | Suspension system of diesel engine |
CN102322498B (en) * | 2011-06-03 | 2014-02-26 | 潍柴动力股份有限公司 | Suspension system of diesel engine |
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CN102616102B (en) * | 2012-04-12 | 2013-10-23 | 江苏大学 | System and method for recovering automobile braking energy and suspension vibration energy |
CN102616102A (en) * | 2012-04-12 | 2012-08-01 | 江苏大学 | System and method for recovering automobile braking energy and suspension vibration energy |
CN103116133A (en) * | 2013-02-03 | 2013-05-22 | 苏州市职业大学 | Traffic load pavement vibration energy piezoelectric power generation measuring method and system thereof |
CN103091566A (en) * | 2013-02-03 | 2013-05-08 | 苏州市职业大学 | Measuring system for traffic load road surface vibration energy piezoelectric generation |
CN103192673A (en) * | 2013-03-29 | 2013-07-10 | 江苏大学 | Semi-active suspension energy-regenerative device of hybrid vehicle |
CN103770594A (en) * | 2014-01-16 | 2014-05-07 | 江苏大学 | Feed-type electromagnetic damping vibration attenuation control method for vehicle suspension |
CN103847454A (en) * | 2014-01-16 | 2014-06-11 | 江苏大学 | Electromagnetic damping vibration reduction device for vehicle suspension |
CN103770594B (en) * | 2014-01-16 | 2016-03-02 | 江苏大学 | A kind of vehicle suspension feeding type electromagnetic damping vibration-reducing control method |
CN103847454B (en) * | 2014-01-16 | 2016-08-17 | 江苏大学 | A kind of vehicle suspension electromagnetic damping vibration absorber |
CN105172507A (en) * | 2015-07-15 | 2015-12-23 | 西南交通大学 | Self-energized magneto-rheological shock absorber system used for automotive suspension |
CN106838091A (en) * | 2017-01-13 | 2017-06-13 | 浙江大学 | Energy conversion mountain bike shock absorber based on electromagnetic damper |
CN108147256A (en) * | 2017-12-25 | 2018-06-12 | 凌志电梯有限公司 | A kind of elevator safety thing to sit on |
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