CN100420583C - Wheel driving assembly - Google Patents

Wheel driving assembly Download PDF

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Publication number
CN100420583C
CN100420583C CNB2004800105436A CN200480010543A CN100420583C CN 100420583 C CN100420583 C CN 100420583C CN B2004800105436 A CNB2004800105436 A CN B2004800105436A CN 200480010543 A CN200480010543 A CN 200480010543A CN 100420583 C CN100420583 C CN 100420583C
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CN
China
Prior art keywords
driven unit
wheel
electrical motor
rotor
stator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNB2004800105436A
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Chinese (zh)
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CN1777521A (en
Inventor
A·J·海嫩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saietta Europe BV
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E Traction Europe BV
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Filing date
Publication date
Application filed by E Traction Europe BV filed Critical E Traction Europe BV
Publication of CN1777521A publication Critical patent/CN1777521A/en
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Publication of CN100420583C publication Critical patent/CN100420583C/en
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/14—Synchronous machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/50—Structural details of electrical machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/46—Drive Train control parameters related to wheels
    • B60L2240/463—Torque
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention relates to a drive component of a wheel. The carriage wheel comprises a wheel spindle and a drive device; the drive device can apply driving torque on the wheel spindle, wherein the driving ratio is greater than 0.57, the driving ratio is the quotient of the driving torque and the radius of the wheel, thus leading to improved efficiency of the electric motor as well as the more obvious extra effect on top of the predicted increase in the efficiency.

Description

Wheel driving assembly
Technical field
The present invention relates to comprise the driven unit of wheel and actuating device, and the vehicle that is provided with at least one this driven unit.
Background technology
Usually use the actuating device drive wheels, as combustion engine, (combustion gas) turbo-machine or electrical motor for example. actuator is connected on the wheel through the deceleration change-speed box, this deceleration change-speed box normally has the gear case of accelerator, perhaps stepless change transmission (CVT) or the like.
On the other hand, described in NL-A-1014182, the known electrical motor that in wheel, is equipped with.
Under the situation that does not have size and details, EP-A-0588478 has described the electrical motor in the wheel by several schematic figures of using this wheel.
Summary of the invention
The objective of the invention is to realize having to improve efficient and have the drive system of more application possibilities.
In order to realize this purpose, the invention provides the driven unit that comprises wheel and actuating device, this wheel has the wheel shaft of rotation, and this actuating device is when applying drive torque on wheel, drive ratio is greater than 0.57, and this drive ratio is the size of the arm of drive torque divided by radius of wheel.
By this drive ratio of selection arm and radius of wheel, but may produce the mode of operation that can produce actual usefulness car on the one hand, reach optimum efficiency on the other hand.
As described in the above-mentioned HOII P file, about the test of electrical motor with discover and recognize,, can further improve the efficient of embodiment described in the NL-A-1014182 when the arm of drive torque during as far as possible near radius of wheel.
It further proves, by using parts, so obviously reduce the bonus effect of the net loss of other energy. owing to can will have the motor littler than expection capacity., can reduce required capacity of cell. except several parts as charger and so on, other electronics packages can both design gentlyer. the result, can further reduce required capacity motor. last, prove that it is possible driving than the obvious actv. more of calculated value.
As a result, can realize than having calculated up to now and known bigger efficient raising.
Herein, arm is limited by the distance that the central authorities of axis of rotor rotation and actuating device are applied in order to make its rotation between axle drive shaft or the epitrochanterian line of action of force.
Actuating device of the present invention is verified, is easy to realize technical construction when using electrical motor.
When for example using when being provided with the electrical motor of stator and rotor, arm will be half of rotor internal diameter, the inside radius of rotor for example, and this stator has coil, and rotor is equipped with the permanent magnet (rotor of so-called outside running around stator; " buitenloper "), wherein stator be fix and be connected on the vehicle, rotor has the permanent magnet around stator rotation, and is connected on the wheel shaft and wheel of wheel. this set makes may realize high efficiency drive device of the present invention.
Because rotor and permanent magnet can be fixedly mounted in the stator outside, so electrical motor also can comprise the coil that is installed on the axle drive shaft. herein, arm is half of root diameter. also may carry out modification.
In one embodiment, actuating device comprises electrical motor, its stator will comprise coil, rotor will comprise permanent magnet. the result, do not need complicated electric power supply, and electrical motor is simple in structure. and, can connect simply or be encased in the vehicle. the internal operations rotor (" binnenloper ") that also can select rotor in coil, to rotate herein once more, with the outside running rotor (" buitenloper ") of rotor around the coil rotation. in order to realize big as far as possible drive ratio, preferably adopt outside running rotor (" buitenloper ").
In one embodiment, wheel is provided with tire, preferably air-inflation tyre. and the radius of wheel also comprises the thickness of tire. and for the vehicle that is provided with tire, it is very tangible selecting driven unit of the present invention.
In simply installed another embodiment, actuating device utilizes connecting device to install, the existence of angle between the axle drive shaft of this connecting device permission wheel shaft and actuating device. and the example of this connecting device is to use (homokinetic) unitor of so-called identical power or the differential speed variator of allied equipment.
In one embodiment, be connected on the vehicle to coil stationary, and magnet ring spool setting and being connected on the axle drive shaft. the result, because electric power supply is simple, so structure may be simple. in addition, permanent magnet has been installed on this rotor so rotor can design gentlyer.
In the embodiment of driven unit of the present invention, drive ratio obviously can make this ratio feasible greater than the correct selection of 0.65. actuating device. in another embodiment, yet drive ratio this means that greater than 0.7. the design for actuating device has higher requirement.
In one embodiment, drive ratio, has correctly been selected the material and the type of wheel preferably less than 0.95. herein less than 1.0. for example, when using air-inflation tyre, will have to select the tire and the airtyred model that make an exception.
In the embodiment of driven unit of the present invention, actuating device comprises electrical motor. verified, electrical motor is particularly suitable for using in driven unit of the present invention. for example, electrical motor provides high moment of torsion when low speed. and, the driving that careful design will realize and the requirement of the present invention aspect drive ratio matches.
In its another embodiment, electrical motor is the synchronous dynamo that is provided with permanent magnet. in this way, this motor can have simple design. and owing to use permanent magnet, so enough compactnesses that this motor can be made.
In the embodiment of driven unit of the present invention, actuating device is an electrical motor, and described electrical motor comprises stator that is provided with coil and the rotor that is provided with permanent magnet, and this stator is fixedly installed in the vehicle. the result, electrical motor can be made enough compactly, to use in the present invention.
In one embodiment, this actuating device comprises handling device and the control setup that is used for electric motor operated in stator, and this actuating device preferably is resisted against on the stator.
In another embodiment, rotor and the coaxial setting of stator, and be connected to electrical motor (external rotating rotor; " buitenloper ") axle drive shaft on.
In one embodiment, this actuating device is installed near wheel.
In one embodiment, this actuating device comprises axle drive shaft, and axle drive shaft and wheel shaft align in line.
In one embodiment, this axle drive shaft is connected with wheel shaft and is used for direct drive.
In one embodiment, this actuating device comprises axle drive shaft, this axle drive shaft direct drive wheel shaft. in its specific embodiment, this axle drive shaft is a wheel shaft.
In the embodiment of driven unit, this actuating device is the electrical motor that is provided with permanent magnet, and this permanent magnet is connected on the wheel shaft.
Optionally, wheel shaft can utilize adaptor union to be connected with axle drive shaft, and this adaptor union allows the longitudinal axis of wheel shaft and the longitudinal axis of axle drive shaft to become to be not equal to 180 ° angle. and the example of this adaptor union is (homokinetic) unitor of differential speed variator and identical power.
Show in one embodiment, even can further raise the efficiency, and particularly when the electrical motor that provides less than the moment of torsion of 0.3Nm/kg vehicle mass is provided actuating device, can further improve the expenditure of energy of the vehicle that is provided with of the present invention or above-mentioned driven unit. may obtain the better performance of 0.4Nm/kg vehicle mass at least. this moment of torsion is a maximum nominal torque. for example, electrical motor can provide maximum (specified) short time yet moment of torsion two-fold moment of torsion., verified, at first sight just can obtain described big, overdimensioned effective advantage.
Another aspect of the present invention is paid close attention to the driven unit of vehicle, and this driven unit comprises the wheel that is provided with wheel shaft and comprise the electrical motor of axle drive shaft, rotor and stator that wherein axle drive shaft is connected on the wheel shaft, is used for direct drive, the setting of this electrical motor next-door neighbour wheel.
This has caused the driving of surprising energy efficiency.
In embodiment, wheel shaft and axle drive shaft setting are in line. and above-mentioned other embodiment also are in the cards.
The vehicle that the present invention relates to special electrical motor and use electrical motor to drive with specific process.
In practice, electrical motor all is known in each embodiment. the problem of known electric motor is, the torque capacity that is provided often is difficult to set. in addition, the work of several electrical motors often is difficult to adapt to each other. and, the moment of torsion that is difficult to electrical motor is provided is suitable for required application, is difficult to make the size of electrical motor to be suitable for various application.
The objective of the invention is to overcome described defective to small part.
Another object of the present invention provides multiduty and is easy to enlarge in proportion and is configured in electrical motor in the vehicle for example.
Another object of the present invention provides the improvement vehicle with favourable fuel oil consumption.
In order to realize these purposes, the invention provides comprising the electrical motor of shell, this electrical motor is provided with:
Stator, this stator are connected on the shell and comprise the coil of at least two group physical separation;
Rotor, but this rotor coaxial rotation be installed in the stator, and comprise permanent magnet;
Control setup is used for controlling power supply and in the phase place of coil;
Measurement mechanism is used to measure electric current by coil and the rotor position, angle with respect to stator;
Handling device is connected on control setup and the measurement mechanism, is used for operating motor, and
Data communication equipment (DCE), be connected on the handling device, be used for the outside of data transmission to shell. the invention still further relates to the vehicle that is provided with wheel, this wheel has wheel shaft, this wheel shaft has turning cylinder, also relates to electrical motor, and this electrical motor is provided with the rotor of the motor reel with rotation, wherein electrical motor is placed in the vehicle, and the motor reel of rotation is installed in above the turning cylinder of wheel.
By selecting electrical motor of the present invention, can obtain to have the electrical motor of scalable moment of torsion. and, several electrical motors may be connected to each other. in order to realize these purposes, this shell is provided with connecting device.
The placement of electrical motor in vehicle makes vehicle may have the advantageous ratio that has between the diameter of the diameter of freeing pipe and wheel. the result, can obtain the vehicle of energy-efficient. especially combine with the described electrical motor of first aspect present invention, can obtain to have the vehicle of advantageous property. especially, the axle drive shaft direct drive wheel shaft of electrical motor.
In the embodiment of electrical motor, measurement mechanism comprises at least two devices that are used to measure magnetic field, they are arranged between two permanent magnets. especially, utilize the direct or indirect feedback of the observed reading of measurement mechanism to control setup, this control setup can be optimized the phase place of curtage, to realize maximal efficiency.
In the embodiment of electrical motor, the two ends of rotor all comprise the connecting device with axle drive shaft. especially, one end comprise can with the connecting device of the connecting device cooperation of the other end. in this way, the rotor of such electrical motor can be connected to each other. and this rotor for example can be provided with continuous hole. when similar electrical motor more than two is placed end to endly, make rotor each other in line the time, rotor can utilize axle drive shaft to pass this hole and be connected to each other. in another embodiment, one of them connecting device comprises an axle bush, and the tip of the axis can be operably connected on the rotor in this axle bush. another connecting device also goes for axle is fixed to the upper.
In another embodiment, this handling device has so-called " initiatively " and " driven " and is provided with, need at power, or the rotating speed of rotor, or through under the influence of data communication equipment (DCE), this handling device can be provided with from so-called " initiatively " and convert " driven " setting to, vice versa. in the assembly of at least two this electrical motors, one is set to so-called " initiatively ", another or in addition severally be arranged to so-called " driven ", and data communication equipment (DCE) wherein manually connects each other, with other electrical motor swap data.
In the embodiment of electrical motor of the present invention, the end of rotor is provided with (homokinetic) unitor of identical power.
In the embodiment of vehicle of the present invention, the motor reel of rotation is basically parallel to the axle of wheel.
In one embodiment, rotor utilizes one or more identical power (homokinetic) unitor to be connected on the wheel shaft.
Description of drawings
To further set forth the present invention based on the illustrative examples of the wheel of direct drive of the present invention, wherein:
Accompanying drawing 1 shows the lateral plan of the wheel with driver element of the present invention;
Accompanying drawing 2 shows the lateral plan of cross-sectional plane of the wheel of accompanying drawing 1;
Accompanying drawing 3 shows the described special (type) motor of another aspect of the present invention;
Accompanying drawing 4 shows the application of electrical motor in driven unit of the present invention of accompanying drawing 3.
The specific embodiment
Accompanying drawing 1 shows the lateral plan of direct drive wheel 1 of the present invention. and herein, tire 2 is installed on the wheel rim 3, and this wheel rim is connected on the wheel shaft 4. and wheel self has outer diameter D 1.
Electrical motor 5 is installed on wheel shaft 4, and wherein axle drive shaft 8 is connected on the wheel shaft 4. and axle drive shaft in the present embodiment and wheel shaft form integral body.
Herein, electrical motor is provided with so-called synchronous dynamo, this synchronous dynamo is provided with the rotor 6 with permanent magnet 10, the stator that has belt coil 7 in this permanent magnet. herein, this permanent magnet 10 is connected on the axle drive shaft 8 through rotor 6, and coil 7 connects with respect to vehicle stationary, form stator, its rotor 6 turns round around stator. and the result has obtained simple, in light weight and the failure-free structure, and has realized actuating device of the present invention in simple mode.
This coil also can be connected to axle drive shaft and with vehicle stationary permanent magnet together on. in addition, also permanent magnet may be installed in the coil certainly, and permanent magnet or coil stationary may be installed.
In the electrical motor shown in the accompanying drawing 1, electric power is the internal diameter of rotor at the distance engagement .D2 of the central D2/2 of distance axle drive shaft 8. the arm that this means the torque that electrical motor produces is D2/2.
According to the present invention, D2/D1 greater than 0.57. clearly, D2 is more near D1, efficient will be big more, and constantly reduce the loss (ever-reducing loss) additional effect big more.
Accompanying drawing 2 shows the lateral plan of cross-sectional plane of the wheel of accompanying drawing 1. and expressed freeing pipe 11. between permanent magnet 10 and the coil 7 for clear and definite the present invention in this lateral plan, electromotor diameter is represented with D2. and described diameter is the internal diameter of rotor.
Relevant with the maximum motor diameter with airtyred thickness, following expression formula is preferred: 1＞D2/D1＞0.65, this tire is preferably used for transporting by highway material and personnel's vehicle.
Preferably, assembling about electrical motor is identical with the electrical motor described in the WO-A1-01/54939 almost, at this it is merged in this specification sheets by reference. as described described in the patent application like that, various flower wheels also can merge in the vehicle.
Wheel travelled surperficial 9. with tire 2
Accompanying drawing 3 shows the electrical motor 401 that is provided with shell 402, it is divided into first cabin 403 that is used for handling device and control setup, and be provided with second cabin of actual motor, passage with cable 405, the electronic component of this cable in first cabin 403 supplied with take off data. and in one embodiment, electrical motor is arranged on lateral wheel.
Electrical motor is provided with coil 406, this coil is in the motor compartment of electrical motor, this motor compartment is fixed on the shell. and electrical motor also is provided with rotor 407, and this rotor is installed in rotation in the motor portion of shell, and coaxial with stator coil 406. and rotor is provided with permanent magnet 408.
For plural electrical motor is connected with each other, shell is provided with and is used for connecting device that shell is connected with each other. in addition, the axle head of rotor is provided with the epitrochanterian device that is used for rotor driven is connected to other this electrical motor. for example, this rotor can be provided with porose, and this hole axially connects whole rotor. and then, major axis can connect all rotors, rotor is connected to each other. for example, this axle can be provided with cam, and this cam is cooperated mutually with the groove in the hole, feasible axle and rotor co-rotation.
Herein, specifically, this rotor is provided with rotor shaft 409, this rotor shaft is provided with axle bush 410, the tip of the axis can hold to become in this axle bush and selectively is connected on the rotor shaft, and on the other end of axle, having connecting device, be used for (homokinetic) unitor 411 of identical power is connected to the other end of rotor. shell 402 also is provided with connecting device, so that similar shell is connected on this shell.
Electronic unit is connected to each other when subsequently, especially data communication equipment (DCE), especially selectively connect with wireless or process cable, or in (numeral) network, during through the data communication equipment (DCE) of the transmission of ICP/IP protocol communication and receiving digital data, just produced a single electric motor about function.
Accompanying drawing 4 shows the part of vehicle 419, this vehicle set is just like two electrical motors 401 shown in the accompanying drawing 3, this electrical motor utilizes adapter shaft 420 operationally to be connected one to the other to together. and the electronic component that is used for two electric motor operated that is contained in the cabin 403 utilizes adaptor union 422 to be connected to each other. especially, data communication equipment (DCE) is connected to each other, thereby two electrical motors form an electrical motor about function. being connected and connecting of shell and rotor is feasible, the same electrical motivation of any amount can be connected to each other to the integral body of operation, they cooperatively interact as a single electric motor. utilize the axle 411 that is provided with two flexible bending points, for example (homokinetic) unitor of identical power or two-phase are with dynamic (dynamical) (homokinetic) unitor, electrical motor is connected on the wheel 423 that is provided with wheel shaft 424. and this wheel has diameter D1. freeing pipe 426 and has the result of diameter D2. as setting shown here, may select to compare very large freeing pipe diameter with wheel diameter, the diameter of freeing pipe D2 even can arrive bigger greatly than the diameter D1 of wheel. as the result of this direct drive mode, can obtain very large energy gain. by aforesaid two electrical motors are connected, may drive, this driving can utilize the described standard motor of another aspect of the present invention. and described electrical motor is described in accompanying drawing 3. for example, lightweight passenger vehicle can a wheel any side be provided with accompanying drawing 3 described electrical motors, and truck or can be provided with two interconnective electrical motors shown in the accompanying drawing 4 by each wheel for example than motorcoach.
The electron steering of electrical motor of the present invention is with the molded formation of several elements as shown in Figure 3. and each element is hierarchically adjusted to each other. and following element can be specific.
1. power module
In the first step, used the IGBT main current modules. the structure in these IGBT main current modules make they itself highly reliable, and assurance lower calorific value and optimum efficiency. main current modules is regulated electric current and is passed through coil. and coil is divided into three groups, every group all has out of phase. and each coil all is two main current modules. and this main current modules is by the step control of back, that is:
2. air restrictor
In second step, two IGBT main current modules are connected on the air restrictor, and control by air restrictor. with according to the independent current sensor (Hall element) of ear principle work suddenly, they have formed independently end step, electric current in the motor winding followed of control. in this step, module and air restrictor with the operation electronics current separation. air restrictor and Hall element with two main current modules further are called as the 4Q module. main current modules and air restrictor have formed control system. each coil all has control system.
3. vector generator
This vector generator provides controlling valu (step 1 and 2) to so-called 4Q module, thereby utilizes the coil of synchronous dynamo to produce magnetic vector, and limits the moment of moment of torsion.
So-called coder or demoder, highly accurate measuring equipment is measured the angle and the revolution of rotation, make vector generator know the actual position of rotor with respect to stator. the quick calculating of rotor-position, with the value of feedback that is connected to it, guaranteed electrical motor and programmed logical module, the best setting of promptly so-called FPGA magnetic vector together. this rotor-position also can carry out record.
Because the combination of microprocessor and FPGA, the whole functional of vector generator can be programmed to optical fiber or cable fully, this is desired. preferably, each electrical motor all is provided with network function, can pass through ICP/IP protocol communication, and can become the part of computer network. this means the needed new data of special applications or revise directly that (through phone or internet) is implemented in the wheel of having operated of the present invention. these corrections not only relate to the software of FPGA, also relate to the hardware of module.
For example, when coil or module want malfunctioning, may change the ratio of electrical motor self, thereby keep the wheel operation. vector generator forms operating system. and the electronic component of following among coder and Hall element and the described embodiment forms measuring system.
4.CPU or central processing unit
The first step in three steps is to be contained in the outside that .CPU in the electrical motor is positioned at electrical motor together, and communicate by letter with various electrical motors of the present invention, this electrical motor can utilize ring of light data bus (ORDABUL) or other computer network connection leads to be connected on the vehicle. also can carry out covering the needed calculating of mileage meter when turning and analyze whole driving notion to AGV (automatically guided vehicle) about road. each step all will the very important information guiding of mode of operation with report to the CPU. error reporting and can report to a last step immediately, previous step suddenly can be by taking measures necessary to respond immediately before damage takes place. and previous step can activate emergency procedure suddenly, this emergency procedure is made correct response to mistake. and the mistake among the result, module can influence whole vehicle hardly.
This modular system can be carried out simple error diagnostics, and under the situation of adjusting that does not need to carry out subsequently difficulty or setting, fast associated components is positioned.
Important difference between the centralized control of asynchronous/synchronous dynamo is, in the preferred embodiment that is divided into three groups, the coil of all motors is electricity separation each other all, and each coil is all controlled by its oneself 4Q module, in these coils of motor each all preferably includes 30 separate windings. and this 4Q module only utilizes power line voltage to be connected to each other, and this has caused following advantage.
1: have only two-phase to be led in the control of conventional three-phase and control. the electric current in the third phase calculates from the situation of other two-phase. this means when operation electronics, to have bigger degree of freedom, for example when being offset the fault of one or more modules.
2: can accurately adjust current distribution, make each motor coil produce identical electric field intensity exactly. the result, the actual moment of the moment of torsion that is produced in each coil by electric field all is adjustable, and the deviation of the electricity that is independent of independent coil in changing.
3: the magnetic tolerance of each coil can utilize vector generator to proofread and correct separately.
4: when the 4Q module during malfunctioning or one of them coil short circuit, electrical motor still keeps running. and wire fuse or relay can be under the situations that does not influence other two 4Q modules or phase place, so malfunctioning module or phase place and they are separated., electrical motor still can be braked, perhaps when using, several wheels still can support them., especially can show the advantage of step wise structure herein.
It will be clear that; foregoing description only comprises the explanation to the operation of preferred embodiment; rather than protection scope of the present invention being limited. those skilled in the art are perfectly clear, and the modification of the embodiment that is discussed in the foregoing description and design also fall within the scope of protection of the present invention.

Claims (17)

1. driven unit comprises:
Wheel with pivot center, and first radius from this rotation axis extension to the wheel outside face, wherein said wheel outside face engage a static nonrotational surface when driven unit turns round;
The electrical motor of a direct drive wheel, wherein this electrical motor is included in the rotor of second radius of pivot center around the pivot center setting, and the stator that is provided with around pivot center in the 3rd radius of pivot center, wherein said second radius is different from described the 3rd radius;
A gap that between described rotor and stator, centers on pivot center;
Wherein said electrical motor applies the torque of drive wheels in the running, and this torque has the arm from rotation axis extension to clearance surface;
Wherein said driven unit has and is defined as the drive ratio of torque arm divided by first radius, and this drive ratio is greater than 0.57; And
Wherein said driven unit is used to have the vehicle of vehicle mass, and wherein this electrical motor has the maximum nominal torque of 0.3Nm/kg vehicle mass at least.
2. driven unit as claimed in claim 1 is characterized in that this drive ratio is greater than 0.65.
3. driven unit as claimed in claim 2 is characterized in that this drive ratio is greater than 0.7.
4. driven unit as claimed in claim 3 is characterized in that this drive ratio is less than 1.0.
5. driven unit as claimed in claim 1 is characterized in that, this electrical motor is the synchronous dynamo that is provided with permanent magnet.
6. driven unit as claimed in claim 5 is characterized in that described stator is provided with coil, this coil with respect to stationary vehicle be arranged in the vehicle, described rotor is provided with permanent magnet.
7. driven unit as claimed in claim 6 is characterized in that, the operation and the control setup that are used for operating motor are arranged on stator.
8. driven unit as claimed in claim 7 is characterized in that, this rotor centers on the coaxial setting of stator, and is connected on the axle drive shaft of electrical motor.
9. driven unit as claimed in claim 1 is characterized in that, described electrical motor is adjacent to wheel and installs.
10. driven unit as claimed in claim 1 is characterized in that this electrical motor comprises axle drive shaft, and this axle drive shaft and wheel hub axially are provided with in extending mutually alignedly along described pivot center.
11. driven unit as claimed in claim 1 is characterized in that, this electrical motor comprises axle drive shaft, this axle drive shaft direct drive wheel shaft.
12. driven unit as claimed in claim 11 is characterized in that, this axle drive shaft is a wheel shaft.
13. driven unit as claimed in claim 6 is characterized in that, described permanent magnet is connected on this wheel shaft.
14. driven unit as claimed in claim 1 is characterized in that, described electrical motor is arranged in the wheel.
15. driven unit as claimed in claim 1 is characterized in that, described wheel also comprises tire, and described wheel outside face is corresponding to outer surface of tire.
16. driven unit as claimed in claim 1 is characterized in that, described static nonrotational surface is the road surface.
17. driven unit as claimed in claim 1 is characterized in that, the internal diameter of described torque arm from rotation axis extension to rotor.
CNB2004800105436A 2003-03-07 2004-03-08 Wheel driving assembly Expired - Lifetime CN100420583C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1022873A NL1022873C2 (en) 2003-03-07 2003-03-07 Wheel driving assembly for electric vehicle, has drive ratio computed from driving moment arm divided by wheel radius and set larger than 0.57
NL1022873 2003-03-07
NL1024565 2003-10-17

Publications (2)

Publication Number Publication Date
CN1777521A CN1777521A (en) 2006-05-24
CN100420583C true CN100420583C (en) 2008-09-24

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CNB2004800105436A Expired - Lifetime CN100420583C (en) 2003-03-07 2004-03-08 Wheel driving assembly

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2019303B1 (en) * 2017-07-20 2019-02-12 E Traction Europe Bv In-wheel electric motor provided with a control system

Citations (5)

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Publication number Priority date Publication date Assignee Title
US4534748A (en) * 1981-12-30 1985-08-13 The Gates Rubber Company Variable speed belt driven transmission system and method
DE3817537A1 (en) * 1988-05-24 1988-12-22 Josef Klaus Drive for a vehicle
US5343128A (en) * 1990-04-12 1994-08-30 Beltrame Carlo L Drive assistance device for a golf buggy
US5438228A (en) * 1992-07-14 1995-08-01 Hydro-Quebec Electrically motorized wheel assembly
WO2001054939A2 (en) * 2000-01-26 2001-08-02 Special Products For Industry V.O.F. Wheel provided with driving means

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Publication number Priority date Publication date Assignee Title
US5369324A (en) * 1992-07-17 1994-11-29 Lyng Elektronikk A-S Electric stepper motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534748A (en) * 1981-12-30 1985-08-13 The Gates Rubber Company Variable speed belt driven transmission system and method
DE3817537A1 (en) * 1988-05-24 1988-12-22 Josef Klaus Drive for a vehicle
US5343128A (en) * 1990-04-12 1994-08-30 Beltrame Carlo L Drive assistance device for a golf buggy
US5438228A (en) * 1992-07-14 1995-08-01 Hydro-Quebec Electrically motorized wheel assembly
WO2001054939A2 (en) * 2000-01-26 2001-08-02 Special Products For Industry V.O.F. Wheel provided with driving means

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CN1777521A (en) 2006-05-24

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