CN208232739U - Electromagnetic suspension and motor vehicle - Google Patents
Electromagnetic suspension and motor vehicle Download PDFInfo
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- CN208232739U CN208232739U CN201820380545.3U CN201820380545U CN208232739U CN 208232739 U CN208232739 U CN 208232739U CN 201820380545 U CN201820380545 U CN 201820380545U CN 208232739 U CN208232739 U CN 208232739U
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Abstract
This application involves vehicle suspension technical field more particularly to electromagnetic suspensions and motor vehicle.Electromagnetic suspension is used to be connected between the vehicle body of motor vehicle and wheel, including wheel connector, transmission mechanism, motor, vehicle body connector and control device, vehicle body connector are connected to motor；Control device is electrically connected with motor, and control device is used to obtain the current operation parameter of motor, obtains target rotational parameter according to current operation parameter, controls motor with the operation of target rotational parameter；Wheel connector is connect by transmission mechanism with motor drive, and the active force on wheel connector is converted to the rotate driving power to motor, and active force when by motor with the operation of target rotational parameter is converted to the damping force to wheel connector.The cost and maintenance cost of electromagnetic suspension and motor vehicle provided herein are lower, and structure is simple, improves the safety of motor vehicle, it can also be ensured that the stability of vehicle body.
Description
Technical field
This application involves vehicle suspension technical field more particularly to a kind of electromagnetic suspensions and motor vehicle.
Background technique
Electromagnetic suspension is a kind of independent suspension system to be worked using inductive reaction, it can be directed to surface conditions,
It reacts (in such as 1 millisecond) in a short time, inhibits vehicle vibration, keep the stabilization of vehicle body, therefore electromagnetic suspension technology is got over
It is applied in the research and development and production of vehicle come more vehicle manufacturers.
Currently, existing electromagnetic suspension generally includes magnetorheological fluid shock absorber or electromagnetic liquid compression bar and straight tube damper phase
In conjunction with damping device etc., to realize the purpose for inhibiting vehicle vibration, such damper is to utilize the electromagnetism loaded inside it
Liquid particles will form the principle aligned by pulse signal excitation and realize its damping effect.But this electromagnetic liquid is
A kind of special liquid, more uncommon, cost is also more expensive, is generally also compared using the price of the vehicle of this electromagnetic suspension
It is higher；In addition, generally also relatively high to the seal request for the device for accommodating this electromagnetic liquid, the device is processed and is made to it in this way
Making the requirement of technique also can be relatively stringenter, manufacture and also be not easy, once and device sealing not enough, leak out electromagnetic liquid,
It will result in certain risk, form security risk.
Utility model content
This application provides a kind of electromagnetic suspension and motor vehicles, to solve existing electromagnetic suspension and use the electromagnetic suspension
Motor vehicle involve great expense, to the more demanding of manufacturing process and there are problems that security risk, and can also guarantee vehicle body
Stability.
The first aspect of the application provides a kind of electromagnetic suspension, for being connected between the vehicle body of motor vehicle and wheel,
Include:
Wheel connector；
Transmission mechanism；
Motor；
Vehicle body connector, the vehicle body connector are connect with the motor；
Control device, the control device are electrically connected with the motor, and the control device is for obtaining the motor
Current operation parameter obtains target rotational parameter, and the control motor according to the current operation parameter with the target
Rotational parameters operation；
The wheel connector is connect by the transmission mechanism with the motor drive, will be on the wheel connector
Active force be converted to the rotate driving power to the motor, and when the motor is run with the target rotational parameter
Active force is converted to the damping force to the wheel connector.
Further, the transmission mechanism is set as screw mechanism, and the screw mechanism includes screw rod and nut, the spiral shell
Mother set is set to outside the screw rod, and the two is threadedly engaged, and one end of the screw rod is connected with the rotation axis of the motor, described
Nut is connected with the wheel connector.
Further, the screw mechanism is ball screw framework, and the screw mechanism further includes being set to the spiral shell
Ball between bar and the nut.
Further, the control device includes acquisition unit, processing unit and regulation portion, the acquisition unit and the motor
Electrical connection, to obtain the current operation parameter of the motor, the processing unit is electrically connected with the acquisition unit, to work as according to
Preceding rotational parameters obtain the target rotational parameter and adjustment parameter corresponding with the target rotational parameter, the regulation portion
It is electrically connected respectively with the processing unit and the motor, the regulation portion includes adjustable resistance, and the adjustment parameter includes resistance value
Parameter, the resistance value of regulation portion adjustable resistance according to the resistance value parameter regulation, to control the motor with the mesh
Mark rotational parameters operation.
Further, the regulation portion further includes controllable impedance, and the adjustment parameter further includes inductance value parameter, described
Regulation portion is also used to the inductance value of the controllable impedance according to the inductance value parameter regulation；And/or
The regulation portion further includes tunable capacitor, and the adjustment parameter further includes capacitance parameter, and the regulation portion is used for
The capacitance of the tunable capacitor is adjusted also according to the capacitance parameter.
Further, the electromagnetic suspension further includes protective shell, and the inside of the protective shell has cavity, and the motor is set
It sets in the cavity, the rotation axis of the motor stretches out the protective shell, and is connected with the transmission mechanism, the vehicle body
Connector is installed on the outside of the protective shell.
Further, the electromagnetic suspension further includes damping spring and mounting base, and the transmission mechanism and the wheel connect
Fitting is respectively arranged in the opposite sides of the mounting base, the damping spring be located at the protective shell and the mounting base it
Between, and be in contact with the two.
The second aspect of the application provides a kind of motor vehicle, including any electromagnetic suspension above-mentioned, and it is multiple
The electromagnetic suspension connects one to one with multiple wheels.
Further, the motor vehicle further includes comprehensively control unit, the comprehensively control unit respectively with it is multiple described
The control device of electromagnetic suspension is electrically connected, to obtain the current operation parameter of the motor of each electromagnetic suspension, according to each described
Current operation parameter obtains needing the target rotational parameter of the motor regulated and controled, and controls the corresponding control device control
The motor for needing to regulate and control is run with the target rotational parameter.
Further, the motor vehicle include four electromagnetic suspensions, four electromagnetic suspensions respectively with four
The wheel connects one to one, and is electrically connected two-by-two between four electromagnetic suspensions.
Technical solution provided by the present application can achieve it is following the utility model has the advantages that
Electromagnetic suspension provided herein, compared with prior art, when wheel crosses irregularity road surface, in motor vehicle
It is powered during traveling, wheel is jolted, and wheel is connected with wheel connector, and wheel connector also passes through transmission mechanism
It is connect with motor drive, wheel, which is acted on, to be driven to the active force on wheel connector by the rotation that transmission mechanism is converted to motor
Power, motor rotate, and control device is electrically connected with motor, the current operation parameter of control device acquisition motor, and according to
Aforementioned current operation parameter obtains target rotational parameter, which is controlled the motor again and run with the target rotational parameter,
The active force under the state is generated, which passes through transmission mechanism again and be converted to damping force to wheel connector, by this
Damping force inhibits the vibration of vehicle body, achievees the effect that damping, guarantees motor vehicle smooth-ride.Wherein, what wheel was subject to jolts
Bigger, the change in displacement of transmission mechanism is bigger, and the velocity of rotation of motor is faster, and the electromagnetic torque that motor generates is bigger,
The corresponding damping force generated is also bigger, inhibits the degree of motor vehicle vibration bigger.
Electromagnetic suspension and motor vehicle provided herein uses the mode of Mechanical Driven to realize inhibition motor vehicle body
Vibration, guarantee vehicle body stability purpose, compared with prior art, cost and maintenance cost are lower, and structure is simple, and do not have
There is higher encapsulation process requirement, the requirement to processing and manufacturing process is not also high, processes and manufactures more easily, also eliminates
Partial security hidden danger, improves the safety of motor vehicle, at the same time it can also be ensured that the stability of vehicle body.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Application.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electromagnetic suspension provided by the embodiment of the present application；
Fig. 2 is the regulation portion circuit connection diagram of electromagnetic suspension provided by a kind of embodiment of the application；
Fig. 3 is the partial structure diagram of motor vehicle provided by the embodiment of the present application；
Fig. 4 is the circuit connection diagram in the regulation portion of electromagnetic suspension provided by the application another kind embodiment.
Appended drawing reference:
1- electromagnetic suspension；
10- wheel connector；
20- vehicle body connector；
30- motor；
301- rotation axis；
40- screw mechanism；
401- screw rod；
402- nut；
50- protective shell；
60- damping spring；
70- mounting base；
80- regulation portion；
801- adjustable resistance；
801a- fixed resistance；
801b- control switch；
802- controllable impedance；
803- tunable capacitor；
804- controllable electric power；
805- rectifier bridge；
The first electric wire of 90a-；
The second electric wire of 90b-；
The first electromagnetic suspension of 11-；
The second electromagnetic suspension of 12-；
13- third electromagnetic suspension；
The 4th electromagnetic suspension of 14-.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
Specific embodiment
The application is described in further detail below by specific embodiment and in conjunction with attached drawing.
As depicted in figs. 1 and 2, the embodiment of the present application provides a kind of electromagnetic suspension 1, and the electromagnetic suspension 1 is for being connected to
Between the vehicle body and wheel of motor vehicle, for guaranteeing the stability of motor vehicle.The motor vehicle can be automobile, motorcycle, transport
Vehicle, mechanical car and electric vehicle etc., the concrete type of motor vehicle is in the embodiment of the present application with no restrictions.The electromagnetic suspension 1 includes
Wheel connector 10 and vehicle body connector 20, the wheel connector 10 and vehicle body connector 20 are respectively used to the wheel with motor vehicle
It is connected with vehicle body, can be specifically fixedly connected, can also be flexibly connected, specific connection type can be welding, bonding, card
One of a variety of connection types or a variety of such as connect, link, being socketed, connection type is in the present embodiment with no restrictions.
Electromagnetic suspension 1 above-mentioned further includes transmission mechanism, motor 30 and control device, vehicle body connector 20 and motor 30
Connection, the two can specifically be directly connected to, can also be indirectly connected with by other devices；Wheel connector 10 passes through transmission mechanism
It is sequentially connected with motor 30；Control device is electrically connected with motor 30, control device be used for obtain motor 30 current operation parameter,
Target rotational parameter, and control motor 30 are obtained with the operation of target rotational parameter according to current operation parameter, wherein work as forward
Dynamic parameter and target rotational parameter specifically can be velocity of rotation, rotational frequency, rotation period and electromagnetic torque of motor 30 etc.；
The effect of transmission mechanism above-mentioned is the rotate driving power be converted to the active force on wheel connector 10 to motor 30, and
Active force when by motor 30 with the operation of target rotational parameter is converted to the damping force to wheel connector 10, which can
To be screw mechanism, wheel and rack combined mechanism, turbine and worm combined mechanism etc., the concrete type of transmission mechanism is in this Shen
Please be in embodiment with no restrictions, the transmission mechanism of any effect that above-mentioned transmission mechanism may be implemented, it is preferred that driver
Structure can be set to screw mechanism.
Electromagnetic suspension 1 provided by the embodiment of the present application, compared with prior art, when wheel crosses irregularity road surface,
During motor vehicle is powered and travels, wheel is jolted, and wheel is connected with wheel connector 10, and wheel connector 10 is also
It is connected by transmission mechanism with the transmission of motor 30, wheel, which is acted on, to be turned to the active force on wheel connector 10 by transmission mechanism
It is changed to the rotate driving power to motor, motor 30 rotates, and control device is electrically connected with motor 30, and control device obtains motor
30 current operation parameter, and target rotational parameter is obtained according to aforementioned current operation parameter, which controls the electricity again
Machine 30 generates the active force under the state with target rotational parameter operation, which is converted to by transmission mechanism again
To the damping force of wheel connector 10, inhibit the vibration of vehicle body by the damping force, achieve the effect that damping, guarantees motor vehicle
Smooth-ride.Wherein, it is bigger that wheel was subject to jolt, and the active force that transmission mechanism is transmitted is bigger, the rotation speed of motor 30
Degree is faster, and the electromagnetic torque that motor 30 generates is bigger, and the corresponding damping force generated is also bigger, and motor vehicle is inhibited to shake
Degree is bigger.
The embodiment of the present application also provides a kind of motor vehicles, as shown in figure 3, the motor vehicle includes one or more above-mentioned
Electromagnetic suspension 1, and when the motor vehicle includes multiple electromagnetic suspensions 1, multiple electromagnetic suspensions 1 respectively with multiple vehicles of the motor vehicle
Wheel connects one to one.
Electromagnetic suspension 1 and motor vehicle provided by the embodiment of the present application use the mode of Mechanical Driven to realize and inhibit motor-driven
The vibration of vehicle vehicle body, guarantee vehicle body stability purpose, compared with prior art, cost and maintenance cost are lower, structure letter
It is single, and without the requirement of higher encapsulation process, the requirement to processing and manufacturing process is not also high, processes and manufactures and more holds
Easily, Partial security hidden danger is also eliminated, the safety of motor vehicle is improved, at the same time it can also be ensured that the stability of vehicle body.
It preferably, should as shown in Figure 1, the transmission mechanism in the embodiment of the present application specifically can be set to screw mechanism 40
Screw mechanism 40 may include screw rod 401 and nut 402, which can be sheathed on except screw rod 401, and the two needs
It is threadedly engaged, one end of screw rod 401 is connected with the rotation axis 301 of motor 30, and the two can be fixedly connected, and movable can also connect
It connects, nut 402 is connected with wheel connector 10, and the two can be directly connected to, and can also be indirectly connected with.Specifically, working as wheel
When being jolted, the active force that wheel is shaken generation is applied to nut 402 by wheel connector 10,402 stress of nut to
Upper movement, and drive screw rod 401 to rotate, and then the rotation axis 301 of motor 30 is driven to rotate, control device gets electric at this time again
The current operation parameter of machine 30, and reason is further processed, target rotational parameter is obtained, which controls the motor again
30 rotation axis 301 carries out backwards rotation with target rotational parameter, generates damping force, and drives screw rod 401 to rotate, and then can be with
Make nut 402 is appropriate to move down, to control the degree of jolting of wheel, guarantees the stability of vehicle body.This screw mechanism 40
Linear motion can be converted into rotational motion, linear motion can also be converted rotational motion in, thus by wheel connector
Active force on 10 is converted to the rotate driving power to motor 30, and effect when by motor 30 with the operation of target rotational parameter
Power is converted to the damping force to wheel connector 10, and the screw mechanism 40 also have structure it is simple, it is cheap, using and
The cost of electromagnetic suspension 1 and motor vehicle can be further effectively reduced in the advantages that easy for installation, functional.
Further, above-mentioned screw mechanism 40 can be ball screw framework, and ball screw framework, which has, is set to screw rod
Ball between 401 and nut 402.When nut 402 drives screw rod 401 to rotate and screw rod 401 drives nut 402 mobile
When, since the ball screw framework has ball between screw rod 401 and nut 402, therefore screw rod 401 and nut 402 can be become
The sliding friction directly contacted is the rolling friction that screw rod 401 and nut 402 are contacted with ball respectively, can reduce movement in this way
Frictional force in the process keeps the movement of transmission mechanism more smooth, effectively prevents the coefficient of friction mistake due to transmission mechanism itself
The case where transmission time caused by greatly is too long or even can not be driven, can also enhance electromagnetic suspension 1 to a certain extent
Reaction sensitivity, and the stability of vehicle body can be controlled in time.
The control device of the embodiment of the present application may include acquisition unit, processing unit and regulation portion 80.Acquisition unit and motor
30 electrical connections are turned when the current operation parameter can rotate for motor 30 with obtaining the current operation parameter of motor 30
Dynamic speed, rotational frequency, rotation period and electromagnetic torque etc..Processing unit is electrically connected with acquisition unit, and processing unit can receive preceding
The current operation parameter stated, and target rotational parameter is obtained according to current operation parameter, which can be motor-driven
Vehicle be under steady state or opposite steady state under the velocity of rotation of corresponding motor 30, rotational frequency, rotation period and
Electromagnetic torque etc., the data of target rotational parameter above-mentioned can be obtained in a manner of human feeling's test, data analysis etc. by first passing through in advance
It arrives, and is stored in processing unit, which can have memory module, join for storing current operation parameter and target rotational
Several corresponding relationships；Processing unit can also be obtained by way of calculating again according to current operation parameter and target rotational parameter with
The corresponding adjustment parameter of preceding aim rotational parameters, the adjustment parameter are that can be realized motor 30 to run with target rotational parameter
Parameter, the adjustment parameter can be resistance value, inductance value, capacitance etc..
Regulation portion 80 above-mentioned can be electrically connected with processing unit, to receive adjustment parameter above-mentioned, as shown in Fig. 2, regulation
Portion 80 can also be electrically connected with motor 30, can be specifically electrically connected by the first electric wire 90a and the second electric wire 90b with motor 30,
The regulation portion 80 may include controllable electric power 804, its place can be controlled by controlling the open and close of controllable electric power 804
Circuit whether be powered, whether be electrically connected with motor 30.The regulation portion 80 can also include adjustable resistance 801, the adjustable resistance
801 specifically can be slide rheostat, resistance box, potentiometer etc., which can be resistance value parameter, and regulation portion 80 can be with
The resistance value for adjusting adjustable resistance 801 is corresponded to according to resistance value parameter.It is assumed that the induced voltage of circuit is constant, due to changing for resistance value
Become, electric current will change, and the size of the electromagnetic torque of motor 30 will change, specifically, resistance increases, electric current reduces, motor
30 electromagnetic torque also reduces, and velocity of rotation also reduces, conversely, resistance reduces, electric current increases, and the electromagnetic torque of motor 30 also increases
Greatly, velocity of rotation also increases, and then controls motor 30 with the operation of target rotational parameter.Further, if after Primary regulation,
The stability of vehicle body is inadequate, can also repeat to adjust in the same way.In addition, it is worth noting that, the present embodiment institute
The electrical connection mentioned is specific either electric wire connection, is also possible to radio connection.The regulative mode by adjust resistance be
It can be achieved, simply, conveniently, algorithm is simple, and structure is simple, facilitates installation for regulative mode, and it is cheap, and then can also drop significantly
The cost of low electromagnetic suspension 1 and motor vehicle.
As shown in figure 4, adjustable resistance 801 can also use following embodiment, adjustable resistance 801 can be using fixed electricity
Hinder the scheme of 801a and control switch 801b combination settings, regulation portion 80 can also be including rectifier bridge 805, and rectifier bridge 805 can be with
For being direct current by AC rectification, fixed resistance 801a can be arranged in parallel with control switch 801b, and regulation portion 80 can be with
The closure of control switch 801b and the mutual switching disconnected are carried out according to the numerical values recited of specific aforementioned resistance value parameter.Specifically
, when control switch 801b closure, electric current flows only through the branch where control switch 801b, and the resistance value for being electrically connected circuit is
0 ohm, at this point, the electric current in circuit is relatively large, the damping of electromagnetic suspension 1 is also with regard to relatively large, the electromagnetic torque of motor 30
Also just relatively large, velocity of rotation is also just relatively large, therefore, when the numerical value of aforementioned resistance value parameter is larger, can choose and closes
Close control switch 801b；When controlling control switch 801b disconnection, electric current flows through the branch where fixed resistance 801a, is electrically connected
The resistance value for taking back road is the resistance value of fixed resistance 801a, at this point, the electric current in circuit is relatively small, the damping of electromagnetic suspension 1
Also relatively small, the electromagnetic torque of motor 30 is also relatively small, and velocity of rotation is also relatively small, therefore, when aforementioned resistance
When the numerical value of value parameter is smaller, it can choose and disconnect control switch 801b.
Control switch 801b in above-described embodiment can specifically use MOSFET (metal-oxide-
Semiconductor field-effect, MOS field-effect transistor) switch, the connecting and disconnecting of switch mosfet by
The low and high level control of PWM (pulse width modulation, pulse width modulation) signal, changes pwm signal height electricity
Flat accounting, thus it is possible to vary the resistance value in the electrical connection of electromagnetic suspension 1 circuit.When pwm signal high level accounting is big, switch mosfet
Turn-on time accounting is big, and electrical connection loop resistance is small, and vice versa.Switch mosfet of the present embodiment itself has certain resistance value
Resistance, it is ensured that electromagnetic suspension 1 basis damping, when electromagnetic suspension 1 control system failure when, the basis damp can
Guarantee the safety of driver.In addition, need only very little the i.e. transmittable pwm control signal of energy consumption, i.e., changeable adjustable resistance 801
Resistance value, realize that the damping of suspension is controllable, and need not largely energize.
Further embodiment is, above-mentioned regulation portion 80 can also include controllable impedance 802 and/or tunable capacitor 803,
The corresponding adjustment parameter can also include inductance value parameter and/or capacitance parameter, which specifically can be can
Inductor is adjusted, which specifically can be patch tunable capacitor, plug-in unit tunable capacitor, ceramic tunable capacitor, PVC can
Adjust capacitor, air tunable capacitor etc..Controllable impedance 802 have resistance to mechanical vibration performance it is relatively strong, by temperature and humidity influenced compared with
Advantage small and that inductance value adjustable range is larger, tunable capacitor 803 have the advantages that trimming precision is higher.
Specifically, regulation portion 80 above-mentioned can be adjusted respectively according to inductance value parameter above-mentioned and/or capacitance parameter
The inductance value of controllable impedance 802 and/or the capacitance of tunable capacitor 803.That is, regulation portion 80 may include adjustable resistance
801, any one or more in 803 3 kinds of devices of controllable impedance 802 and tunable capacitor, every kind of device can also include one
Or multiple devices, it can be attached by series, parallel or series-parallel mode between a variety of or multiple devices.This field
Staff is it is found that under normal circumstances, the resistance value after multiple resistance series connection is greater than the resistance value after multiple resistor coupled in parallel, multiple inductance
For inductance value after series connection also greater than the inductance value after multiple inductance in parallel, the capacitance after multiple capacitors are in parallel is greater than multiple capacitors
Capacitance after series connection.Therefore, maximized principle can be realized based on resistance value and/or inductance value and/or capacitance, when regulation portion
80 include one or more adjustable resistances 801, and/or when one or more controllable impedances 802, it is preferred that above-mentioned each adjustable
It connects between resistance 801 and/or controllable impedance 802；When regulation portion 80 includes one or more tunable capacitors 803 and/or one
Or multiple adjustable resistances 801, and/or when one or more controllable impedances 802, it is preferred that between multiple tunable capacitors 803 simultaneously
Connection and tunable capacitor 803 are connected in parallel with adjustable resistance 801 and/or controllable impedance 802 respectively.When resistance value and/or inductance value
And/or capacitance, when can realize maximization, the modification scope in regulation portion 80 is just bigger, regulating power is also just bigger, and then can be with
Improve the ability for adjusting vehicle body stability.
Fig. 2 show one kind when regulation portion 80 includes adjustable resistance 801, controllable impedance 802 and tunable capacitor 803 preferably
The schematic diagram of connection type, three kinds of devices are electrically connected in series-parallel mode, and adjustable resistance 801 and controllable impedance 802 are gone here and there
Connection, and it is in parallel with tunable capacitor 803.In this way, three kinds of device electrical connections, and maximum can be realized with resistance value, inductance value and capacitance
The mode of change is connected, which can integrate the excellent of 803 three of adjustable resistance 801, controllable impedance 802 and tunable capacitor
Point, it may be assumed that the high advantage of the trimming precision that the regulation portion 80 both can have tunable capacitor 803, it is possible to have controllable impedance 802
Resistance to mechanical vibration performance it is relatively strong, influenced advantage smaller and that inductance value adjustable range is larger by temperature and humidity, may be used also
To have the advantages that the regulative mode of adjustable resistance 801 is simple, cheap.The regulation portion 80 has reduced or even eliminated temperature etc.
Influence of the extraneous factor to adjusted result improves the adjusting precision in regulation portion 80, optimizes the adjusting method in regulation portion 80,
The regulating power in regulation portion 80 is also improved, to improve the stability of vehicle body.
Another preferred embodiment is, as shown in Figure 1, the electromagnetic suspension 1 can also include protective shell 50, the protective shell
50 inside has cavity, and motor 30 can be set in the cavity, and can be fixedly connected with the inner surface of protective shell 50,
The rotation axis 301 of motor 30 stretches out the protective shell 50, and is connected with transmission mechanism, and vehicle body connector 20 is installed on protective shell 50
Outside.The protective shell 50 can be a kind of body structure, which can be by stronger, the corrosion-resistant, high temperature resistant of rigidity, hard
It spends biggish material to be made, such as stainless steel, aluminium alloy.The effect of protective shell 50 is that the motor 30 in its cavity is protected not to be damaged
It is bad, extend the service life of motor 30, reduces the maintenance cost of motor vehicle.
Another preferred embodiment is, as shown in Figure 1, the electromagnetic suspension 1 can also include damping spring 60 and installation
Seat 70, the damping spring 60 can be steel wire compressed spring, rubber spring, complex spring, air bag spring etc., the present embodiment with
For damping spring 60 is steel wire compressed spring, transmission mechanism and wheel connector 10 can be respectively arranged in the phase of mounting base 70
To two sides, specifically, the side of the mounting base 70 can be with the spiral shell of screw mechanism 40 when the transmission mechanism is screw mechanism 40
Can be fixed with wheel connector 10 or be flexibly connected, damping spring in the opposite other side of the fixed perhaps flexible connection of mother 402
60 can be in contact between protective shell 50 and mounting base 70, and with the two, make mounting base 70 move up or move down can be right
The compression of damping spring 60 for making to be in contact with it or stretching answered.When wheel is shaken, wheel connector 10 and mounting base
70 also will receive vibration and move up and down, and then damping spring 60 can be compressed or be stretched.In the process, damping spring 60
Can be absorbed partially due to wheel vibration and generate energy, can also play the role of buffer energy transmission, improve vehicle body
Stationarity.Furthermore it is possible to adjust damping bullet in advance by moving up and down mounting base 70 according to the different road conditions that can be predicted
The initial position of spring 60, to improve stability of the motor vehicle under different road conditions, such as: when predict motive vehicle meeting traveling compared with
When on flat road, can shift to an earlier date it is appropriate move up mounting base 70, reduce the distance between vehicle body and wheel, to prevent from working as vehicle
When minimum vibration occurs for wheel, originally it can not need to shake it to inhibit, damping spring 60 and transmission mechanism are corresponding
The reaction of biggish vibration-inhibition is made, this degree of can may reduce the stability of vehicle body instead；Conversely, when pre-
Motive vehicle meeting traveling is measured when on more rugged road, can shift to an earlier date it is appropriate move down mounting base 70, increase vehicle body and wheel
The distance between, improve electromagnetic suspension 1 reaction sensitivity and degree of regulation, make wheel by it is biggish vibration or relatively frequently
Vibration when, damping spring 60 and transmission mechanism can make the reaction of good vibration-inhibition in time, this further is mentioned
The damping effect of electromagnetic suspension 1 has been risen, and has improved the stability of motor vehicle.
As shown in figure 3, further, motor vehicle provided herein can also include comprehensively control unit, this is comprehensive
Closing control unit can be electrically connected with the control device of multiple electromagnetic suspensions 1 respectively, to obtain the motor 30 of each electromagnetic suspension 1
Current operation parameter, and the target rotational parameter for the motor 30 that needs regulate and control, and control pair are obtained according to each current operation parameter
The motor 30 that the control device control answered needs to regulate and control is above-mentioned that the motor 30 regulated and controled is needed to refer to the operation of target rotational parameter
According under different road conditions, the different shock conditions that corresponding motor vehicle occurs, it is obtained regulated and controled motor
30。
Specifically, being illustrated by taking four-wheeled vehicle as an example, which may include that four electromagnetism above-mentioned are outstanding
Frame 1, four electromagnetic suspensions 1 connect one to one with its four wheels respectively, which can be respectively first
Electromagnetic suspension 11, the second electromagnetic suspension 12, third electromagnetic suspension 13 and the 4th electromagnetic suspension 14, and according under different road conditions this four
The shock conditions of wheel motor vehicle can be adjusted different electromagnetic suspensions 1 with corresponding, and aforementioned shock conditions can be pitching
The vibration etc. that vibration, inclination vibration or pitching and inclination combine.Specifically, can be by adjusting the first electromagnetic suspension 11 simultaneously
It is faced upward before stablizing with the second electromagnetic suspension 12 and the preceding shock conditions bowed；It can be by adjusting third electromagnetic suspension 13 and the simultaneously
Four electromagnetic suspensions 14 come stablize layback and after the shock conditions bowed；It can be by adjusting the first electromagnetic suspension 11 and third electricity simultaneously
Magnetcisuspension frame 13 stablizes left-leaning shock conditions；Can by adjust simultaneously the second electromagnetic suspension 12 and the 4th electromagnetic suspension 14 come
Stablize the shock conditions of Right deviation；It can be by adjusting the first electromagnetic suspension 11 and the 4th electromagnetic suspension 14 or the second electricity simultaneously
Magnetcisuspension frame 12 and third electromagnetic suspension 13 stablize pitching and roll the shock conditions combined.For different shock conditions,
Different electromagnetic suspensions 1 is adjusted simultaneously, the working efficiency for inhibiting motor vehicle vibration of electromagnetic suspension 1 is can effectively improve, may be used also
To further increase the stability of motor vehicle.
On the basis of the above embodiments, it can be electrically connected to form six differences two-by-two between four electromagnetic suspensions 1
Electrical connection circuit, each circuit that is electrically connected can connect respective line switching, each line switching respectively with comprehensively control
Unit electrical connection, is each electrically connected for the shock conditions of the vehicle body of different road conditions to control the closure and disconnection of each line switching
Two electromagnetic suspensions 1 can be controlled simultaneously by taking back road, if the line switching in multiple electrical connection circuits is closed at, so that it may same
When control multiple electromagnetic suspensions 1, can be further reduced the time of motor vehicle vibration-inhibition in this way, improve reaction speed, simultaneously
Control is got up more convenient.
The embodiment of the present application provides a kind of control method of electromagnetic suspension 1, which can be used for aforementioned any
Electromagnetic suspension 1 in embodiment, the control method may comprise steps of:
Step S1, the current operation parameter of motor 30 is obtained；
Step S2, target rotational parameter is obtained according to current operation parameter；
Step S3, control motor 30 is with the operation of target rotational parameter.
The vibration for inhibiting motor vehicle body, the stability for guaranteeing vehicle body may be implemented by the control method in electromagnetic suspension 1
Purpose, also, the control method is simple, implementation is stronger.
Further, can also include: before step S3
Step S4, adjustment parameter corresponding with target rotational parameter is obtained according to current operation parameter, adjustment parameter can be with
Including resistance value parameter；
Aforementioned step S3 is specifically as follows: according to the resistance value of resistance value parameter regulation adjustable resistance 801 so that motor 30 with
The operation of target rotational parameter.
The control method is more directly, simply, convenient to carry out.
Further, can also include: in step S4 adjustment parameter further include inductance value parameter and/or capacitance ginseng
Number；
It can also include: according to the inductance value of inductance value parameter regulation controllable impedance 802, and/or according to electricity in step S3
The capacitance of capacitance parameter regulation tunable capacitor 801.
The control method has reduced or even eliminated influence of the extraneous factors such as temperature to adjusted result, improves regulation portion 80
Adjusting precision, the regulating power in regulation portion 80 is also improved, to improve the stability of vehicle body.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of electromagnetic suspension, for being connected between the vehicle body of motor vehicle and wheel characterized by comprising
Wheel connector；
Transmission mechanism；
Motor；
Vehicle body connector, the vehicle body connector are connect with the motor；
Control device, the control device are electrically connected with the motor, and the control device is for obtaining the current of the motor
Rotational parameters obtain target rotational parameter, and the control motor according to the current operation parameter with the target rotational
Parameter operation；
The wheel connector is connect by the transmission mechanism with the motor drive, by the work on the wheel connector
Effect when being firmly converted to the rotate driving power to the motor, and the motor being run with the target rotational parameter
Power is converted to the damping force to the wheel connector.
2. electromagnetic suspension according to claim 1, which is characterized in that
The transmission mechanism is set as screw mechanism, and the screw mechanism includes screw rod and nut, and the nut is sheathed on described
Outside screw rod, and the two is threadedly engaged, and one end of the screw rod is connected with the rotation axis of the motor, the nut and the vehicle
Wheel connector is connected.
3. electromagnetic suspension according to claim 2, which is characterized in that
The screw mechanism is ball screw framework, and the screw mechanism further includes being set between the screw rod and the nut
Ball.
4. electromagnetic suspension according to claim 1, which is characterized in that
The control device includes acquisition unit, processing unit and regulation portion, and the acquisition unit is electrically connected with the motor, to obtain
The current operation parameter of the motor, the processing unit are electrically connected with the acquisition unit, to be obtained according to the current operation parameter
To the target rotational parameter and adjustment parameter corresponding with the target rotational parameter, the regulation portion respectively with the place
Reason portion and motor electrical connection, the regulation portion includes adjustable resistance, and the adjustment parameter includes resistance value parameter, the regulation
The resistance value of portion's adjustable resistance according to the resistance value parameter regulation is transported with controlling the motor with the target rotational parameter
Row.
5. electromagnetic suspension according to claim 4, which is characterized in that
The regulation portion further includes controllable impedance, and the adjustment parameter further includes inductance value parameter, and the regulation portion is also used to root
According to the inductance value of controllable impedance described in the inductance value parameter regulation；And/or
The regulation portion further includes tunable capacitor, and the adjustment parameter further includes capacitance parameter, and the regulation portion is also used to root
The capacitance of the tunable capacitor is adjusted according to the capacitance parameter.
6. electromagnetic suspension according to claim 1, which is characterized in that it further include protective shell, the inside tool of the protective shell
Have a cavity, in the cavity, the rotation axis of the motor stretches out the protective shell for the motor setting, and with the driver
Structure is connected, and the vehicle body connector is installed on the outside of the protective shell.
7. electromagnetic suspension according to claim 6, which is characterized in that further include damping spring and mounting base, the transmission
Mechanism and the wheel connector are respectively arranged in the opposite sides of the mounting base, and the damping spring is located at the protective shell
It is in contact between the mounting base, and with the two.
8. a kind of motor vehicle, which is characterized in that including multiple electromagnetic suspensions of any of claims 1-7, and it is multiple
The electromagnetic suspension connects one to one with multiple wheels.
9. motor vehicle according to claim 8, which is characterized in that it further include comprehensively control unit, the comprehensively control list
Member is electrically connected with the control device of multiple electromagnetic suspensions respectively, to obtain the current operation of the motor of each electromagnetic suspension
Parameter, obtains needing the target rotational parameter of the motor regulated and controled according to each current operation parameter, and controls corresponding
The control device control needs the motor regulated and controled to run with the target rotational parameter.
10. motor vehicle according to claim 9, which is characterized in that including four electromagnetic suspensions, four electromagnetism
Suspension connects one to one with four wheels respectively, and is electrically connected two-by-two between four electromagnetic suspensions.
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|---|---|---|---|
| CN201820380545.3U CN208232739U (en) | 2018-03-20 | 2018-03-20 | Electromagnetic suspension and motor vehicle |
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| CN201820380545.3U CN208232739U (en) | 2018-03-20 | 2018-03-20 | Electromagnetic suspension and motor vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248324A (en) * | 2018-03-20 | 2018-07-06 | 常州万安汽车部件科技有限公司 | Electromagnetic suspension and its control method and motor vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248324A (en) * | 2018-03-20 | 2018-07-06 | 常州万安汽车部件科技有限公司 | Electromagnetic suspension and its control method and motor vehicle |
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