CN106143120B - The wheel motor drive device of electric vehicle and electric vehicle method of work - Google Patents
The wheel motor drive device of electric vehicle and electric vehicle method of work Download PDFInfo
- Publication number
- CN106143120B CN106143120B CN201610784136.5A CN201610784136A CN106143120B CN 106143120 B CN106143120 B CN 106143120B CN 201610784136 A CN201610784136 A CN 201610784136A CN 106143120 B CN106143120 B CN 106143120B
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- Prior art keywords
- lateral star
- motor
- star wheel
- clutch
- electric vehicle
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Classifications
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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
-
- 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
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
-
- 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
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The present invention provides a kind of wheel motor drive device and electric vehicle method of work of electric vehicle, it includes motor, left lateral star wheel series, right lateral star wheel series, braking mechanism and controller, motor includes the motor shaft being connected with hub rotation, the both ends of motor shaft are respectively equipped with left clutch and right clutch, and left clutch, right clutch are connected with controller；Left lateral star wheel series and right lateral star wheel series, include sun gear, at least three rotational positionings planetary gear and be fixed on wheel hub wall on ring gear, all planetary gears are circumferentially uniformly distributed and are meshed with sun gear around sun gear, and all planetary gears are respectively positioned in ring gear and are meshed with ring gear；Two sun gears are symmetrically mounted on the left and right ends of motor shaft and are relatively rotated with motor shaft, and left clutch, right clutch are under the control of the controller in combination or off-state.Flexibility when stationarity and motor turning when the present invention greatly improves electric vehicle vehicle wheel rotation manipulate.
Description
Technical field
The present invention relates to the actuation techniques field of electric vehicle, more particularly to a kind of In-wheel motor driving of electric vehicle
Device and electric vehicle method of work.
Background technology
The development of electric vehicle achieves significant progress in recent years, and the wheel hub motor as electric vehicle core component drives
The application of dynamic device is also more and more.In currently used hub motor for electric automobile driving device, some is cross section non-week
To symmetrical structure, so as to affect stationarity when automotive wheel rotates；Some is the non-bilateral symmetry in cross section, so as to shadow
Flexibility during motor turning manipulation is rung；Some structures are excessively complicated, during so as to affect automobile hub tyre demolition and maintenance
Convenience and economy；Some is driven for direct motor or only level-one gear, so as to both affect electric vehicle
Dynamic property affects the economy of electric vehicle again.
Chinese patent 201610100566.0 discloses a kind of new-energy automobile wheel hub motor power assembly drive system, including
Axial and disc-type electric motor all-in-one machine, is made of, internal stator outboard rotor, tire is directly installed on external turn stator and rotor
On son；Brake callipers, damping and connecting bracket, floating braking disc are further included, brake callipers are mounted on the inside table of axis of stator
Face is matched close to the position at interior edge, clamp outward opening with floating braking disc；The multiple bolts of floating braking disc
Outer roller axial is fixed on interior end face；Damping and connecting bracket are divide into upper part and lower part, mounted on the axial direction of stator
On inner wall；Wheel hub motor central shaft is fastened using thrust roller bearing, is driven by axial direction and disc-type electric motor all-in-one machine.New energy
Car wheel electromotor power assembly is by wheel hub, outer rotor wheel hub electric motor, brake callipers and brake block, damping and connecting rod rack collection
As a system, using the drive pattern of motor direct-drive wheel hub, the dynamic property and economy of electric vehicle are affected.
Therefore, it is necessary to a kind of driveability is good, stability of rotation and the flexible hub motor for electric automobile driving device of manipulation.
The content of the invention
In view of the foregoing deficiencies of prior art, it is an object of the invention to provide a kind of wheel hub motors of electric vehicle
Driving device and electric vehicle method of work, for solving in the prior art by its driven nature of the electric vehicle of In-wheel motor driving
Can be poor, stationarity is poor the problem of.
In order to achieve the above objects and other related objects, the present invention provides a kind of In-wheel motor driving dress of electric vehicle
It puts, including motor, left lateral star wheel series, right lateral star wheel series, braking mechanism and is fixed in motor and control motor
The controller of action, left lateral star wheel series and right lateral star wheel series are symmetrically distributed in the left and right sides of motor；Wherein, motor includes
The motor shaft being connected with hub rotation, the left end of motor shaft are equipped with left clutch, and the right end of motor shaft is equipped with right clutch, it is left from
Clutch, right clutch are connected with controller；Left lateral star wheel series and right lateral star wheel series are rotated including sun gear, at least three
The planetary gear of positioning and the ring gear being fixed in wheel hub wall, all planetary gears are circumferentially uniformly distributed and around sun gear
It is meshed with sun gear, all planetary gears are respectively positioned in ring gear and are meshed with ring gear；Two sun gears are symmetrically mounted on
The left and right ends of motor shaft and with motor shaft be rotatablely connected, left clutch under the control of the controller in left lateral star wheel series too
Sun wheel is in the sun gear in right lateral star wheel series combines under the control of the controller in combination or off-state, right clutch
Or off-state.
Preferably, the motor further includes rotor, motor stator and left end cap, right end cap and housing, motor
Rotor and motor stator are placed in the cavity surrounded by left end cap, right end cap and housing, and the motor shaft is consolidated with rotor
Fixed to be connected, the left and right ends of motor shaft are each passed through left end cap and right end cap and are rotatablely connected with left end cap, right end cap, described
Controller is fixed on left end cap or right end cap.
Preferably, the motor stator is hollow web pattern.
Preferably, the planetary gear is rotatably installed on planet wheel spindle, all planet wheel spindles in the left lateral star wheel series
Both ends are respectively fixed on the left side of left lateral star wheel frame and the housing, all planetary gears in the right lateral star wheel series
One end of axis is each attached on the right side of the housing.
Preferably, the braking mechanism includes the brake disc and braking clamp that are used in conjunction with each other, and brake disc is fixed on described
On wheel hub, braking clamp is fixed on left lateral star wheel frame.
Preferably, damper connector, turning machine connector and swing arm connector are also fixed on the left lateral star wheel frame.
Preferably, the tooth tip diameter of the ring gear in the left lateral star wheel series is more than the ring gear of the right lateral star wheel series
Tooth tip diameter.
The present invention also provides a kind of method of works of electric vehicle, and the electric vehicle is using electric vehicle as described above
Wheel motor drive device specifically includes following several operating modes：
Neutral gear start-up mode, electric vehicle start, and the motor rotates forward, the controller control left clutch, it is right from
Clutch is off respectively with left lateral star wheel series, right lateral star wheel series；
Low-speed running mode, the controller control right clutch are off with right lateral star wheel series, left clutch
Bonding state, the work of left lateral star wheel series are in left lateral star wheel series, motor rotates forward；
High speed driving mode, the controller control left clutch are off with left lateral star wheel series, right clutch
Device is in bonding state, the work of right lateral star wheel series with right lateral star wheel series, and motor rotates forward；
Sliding brake function power generation mode, controller control left clutch are off with left lateral star wheel series, the right side from
Clutch is in bonding state with right lateral star wheel series, and motor drags dynamic brake by counter；
Reverse travel pattern, the controller control right clutch are off with right lateral star wheel series, left clutch
Bonding state, motor reversion are in left lateral star wheel series.
As described above, the wheel motor drive device of electric vehicle of the present invention and the method for work of electric vehicle, have
Following advantageous effect：Wheel motor drive device is divided into several big modules：Motor, left lateral star wheel series, right lateral star wheel series and control
Each module is distributed by device processed with quasi- symmetric form, makes the cross section of wheel motor drive device both with circumferential symmetrical (circumferential right
Claim refer to that each module is circumferentially uniformly distributed centered on motor shaft around motor shaft) design feature again have approximation it is symmetrical
Design feature；Stationarity and motor turning when quasi- symmetrical structure distribution greatly improves electric vehicle vehicle wheel rotation are grasped
Flexibility during control；Succinct modular construction and the rational allocation of double-planet train, had both improved peace during automobilism
Convenience when Quan Xinghe is used allows motor to be operated in high efficiency according to the needs of Electric Vehicles Driving Cycle again
Rotating speed section, so as to not only improving the dynamic property of electric vehicle but also improve the economy of electric vehicle.
Description of the drawings
Fig. 1 is shown as the cross-sectional view of the wheel motor drive device of the electric vehicle of the present invention.
Component label instructions
1 tire
2 wheel hubs
3 left lateral star wheel series
31 left inside gear rings
32 left lateral star-wheels
33 left lateral spider gear shafts
34 left sun gears
35 left lateral star wheel frames
4 right lateral star wheel series
41 right ring gears
42 right lateral star-wheels
43 right lateral spider gear shafts
44 right sun gears
51 right clutches
52 left clutches
6 motor
61 motor shafts
62 right end caps
63 left end caps
64 rotors
65 motor stators
66 housings
7 brake discs
8 braking clamps
9 damper connectors
10 controllers
11 turning machine connectors
12 swing arm connectors
101 hub bearings
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
It please refers to Fig.1.It should be clear that structure, ratio, size depicted in this specification institute attached drawing etc., only coordinating
So that those skilled in the art understands and reads, it is enforceable to be not limited to the present invention for the revealed content of specification
Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size,
It does not influence under the effect of present invention can be generated and the purpose that can reach, should all still fall in disclosed technology contents
In the range of covering.Meanwhile cited such as " on ", " under ", "left", "right", " centre " and " one " in this specification
Term, be merely convenient to understanding rather than to limit the enforceable scope of the present invention for narration, the change of relativeness or
Adjustment, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, the present invention provides a kind of wheel motor drive device of electric vehicle, including wheel hub 2, wheel is placed in
Tire 1 outside hub 2, be placed in wheel hub 2 with lower structure：Motor 6, left lateral star wheel series 3, right lateral star wheel series 4, braking mechanism with
And the controller 10 that in motor 6 and control motor 6 acts is fixed on, left lateral star wheel series 3 and right lateral star wheel series 4 are symmetrical
In the left and right sides of motor 6；Wherein, motor 6 includes the motor shaft 61 being rotatedly connected with wheel hub 2, and motor shaft 61 passes through wheel
Hub axle holds 101 and is rotatedly connected with wheel hub 2, and the left end of motor shaft 61 is equipped with left clutch 52, the right end of motor shaft 61 be equipped with it is right from
Clutch 51, left clutch 52, right clutch 51 are connected with controller 10；Left lateral star wheel series 3 and right lateral star wheel series 4, include
Sun gear (left sun gear 34, right sun gear 44 in Fig. 1), at least three rotational positionings planetary gear (left lateral star-wheel 32 in Fig. 1,
Right lateral star-wheel 42) and be fixed on wheel hub wall on ring gear (left inside gear ring 31, right ring gear 41 in Fig. 1), all planets
Wheel is circumferentially uniformly distributed and is meshed with sun gear around sun gear, and all planetary gears are respectively positioned in ring gear and and ring gear
It is meshed；Two sun gears (left sun gear 34, right sun gear 44 in Fig. 1) be symmetrically mounted on the left and right ends of motor shaft 61 and with
Motor shaft 61 is rotatablely connected, left clutch 52 under the control of controller 10 with sun gear (the i.e. left sun in left lateral star wheel series 3
Wheel 34) in combine or off-state, right clutch 51 under the control of controller 10 with the sun gear in right lateral star wheel series 4
(i.e. right sun gear 44) is in combination or off-state.
The wheel motor drive device of the electric vehicle of the present invention is divided into several big modules：Motor 6, left lateral star wheel series 3, the right side
Each module with quasi- symmetric form is distributed, makes the cross section of wheel motor drive device both have by planetary gear train 4 and controller 10
360 ° of circumferential symmetrical structure features have approximate symmetrical design feature again, circumferential symmetrically to refer to each module with motor shaft
It is circumferentially uniformly distributed around motor shaft centered on 61, it is symmetrical to refer to left lateral star wheel series and right lateral star wheel series on motor or so
Symmetrically；When stationarity and motor turning when quasi- symmetrical structure distribution greatly improves electric vehicle vehicle wheel rotation manipulate
Flexibility；Succinct modular construction and the rational allocation of double-planet train, had both improved security during automobilism
Again motor is allowd to be operated in efficient turn according to the needs of Electric Vehicles Driving Cycle with convenience when using
Fast section, so as to not only improve the dynamic property of electric vehicle but also improve the economy of electric vehicle.
Above-mentioned motor 6 specifically further includes rotor 64, motor stator 65 and left end cap 63, right end cap 62 and housing
66, rotor 64 and motor stator 65 are placed in the cavity surrounded by left end cap 63, right end cap 62 and housing 66, the electricity
Arbor 61 is fixedly linked with rotor 64, and the left and right ends of motor shaft 61 are each passed through left end cap 63 and right end cap 62, and logical
It crosses bearing to be rotatedly connected with left end cap, right end cap, controller 10 is fixed on left end cap 63 or right end cap 62.Electricity in the present invention
Motivation 6 is located at the center of entire wheel motor drive device；Motor shaft 61 is long axis, is entire hub motor for electric automobile driving
The axially position support component of device modules unit can be designed to hollow-core construction to mitigate weight；Housing 66 is whole
The core skeleton element of a hub motor for electric automobile driving device is responsible for structure with entire hub motor for electric automobile is kept to drive
The spatial relationship of dynamic device modules unit；Motor stator 65 can be designed to hollow web pattern, can both mitigate weight,
It again can be with vacating space to arrange controller 10.
Controller noted above 10 is that the electronics of the wheel motor drive device normal work of the entire electric vehicle of coordinative command is soft
The conglomerate of part and electronic apparatus hardware.Controller 10 can both be designed as a whole structure, can also be designed to march-past knot
Structure.The controller of monoblock type can be fixed at left end cap 63 and (controller 10 is fixed on left end cap 63 in Fig. 1 as needed
On) or right end cap 62 side；March-past controller can be respectively fixedly disposed at the side of left end cap, right end cap as needed
Face.Controller 10 can as needed to motor send startup, acceleration, at the uniform velocity, slow down, stop, reversion, power generation etc. instructions；
Controller 10 can also send the instruction such as combination, disconnection to left clutch 52, right clutch 51 respectively as needed (cannot be to the left
Clutch and right clutch are simultaneously emitted by combined command)；Controller 10 also is responsible for the letter between extraneous other controllers simultaneously
Cease alternate current operation.
Left lateral star wheel series 3 are located at the motor left side, as shown in Figure 1, left lateral star wheel series 3 mainly by left sun gear 34, at least
Three left lateral star-wheels 32, left inside gear ring 31, left lateral spider gear shaft 33, left clutch 52 are formed.Motor shaft 61 passes through left sun gear 34
Center, left sun gear 34 is rotatablely connected with motor shaft 61 by bearing.All left lateral star-wheels 32 surround the week of left sun gear 34
To being uniformly distributed.One end of each left lateral spider gear shaft 33 is fixedly connected with the left side of housing 66, each left lateral spider gear shaft 33
The other end is fixedly connected with above-mentioned left lateral star wheel frame 35, i.e., left lateral star wheel frame 35 is placed in the left end of left lateral star-wheel 32.Left sun gear
34 gear teeth and the gear teeth meshing of left lateral star-wheel 32, the gear teeth meshing of the gear teeth of left lateral star-wheel 32 and left inside gear ring 31.When electronic
Machine 6 is powered and left clutch 52 is in bonding state and when right clutch 51 is off, rotor 64 drives electricity
Arbor 61 rotates, and motor shaft 61 can drive left sun gear 34 to rotate.Since the left lateral spider gear shaft 33 in left lateral star wheel series 3 is
It is fixed, thus during the rotation of left sun gear 34 left lateral star-wheel 32 can be driven to rotate, left lateral star-wheel 32 and then drive
Left inside gear ring 31 rotates, the final purpose for realizing drive hub tyre rotation.
Right lateral star wheel series 4 are located on the right of motor, as shown in Figure 1, right lateral star wheel series 4 mainly by right sun gear 44, at least
Three right lateral star-wheels 42, right ring gear 41, right lateral spider gear shaft 43, right clutch 51 are formed.Motor shaft 61 passes through right sun gear 44
Center, right sun gear 44 is rotatablely connected with motor shaft 61 by bearing.All right lateral star-wheels 42 surround the week of right sun gear 44
To being uniformly distributed.Right side of the one end of each right lateral spider gear shaft 43 with above-mentioned housing 66 is fixedly connected, each right lateral star-wheel
The other end of axis 43 is vacantly set or is fixed on right lateral star wheel frame, i.e., right lateral star wheel frame can be set according to selection.The right sun
The gear teeth of wheel 44 and the gear teeth meshing of right lateral star-wheel 42, the gear teeth meshing of the gear teeth of right lateral star-wheel 42 and right ring gear 41.Work as electricity
Motivation 6 is powered and right clutch 51 is in bonding state and when left clutch 52 is off, rotor 64 drives
Motor shaft 61 rotates, and motor shaft 61 can drive right sun gear 44 to rotate.Due to the right lateral spider gear shaft 43 in right lateral star wheel series 4
It is fixed, thus during the rotation of right sun gear 44 right lateral star-wheel 42 can be driven to rotate, right lateral star-wheel 42 and then band
It moves right ring gear 41 to rotate, the final purpose for realizing drive hub tyre rotation.
Above-mentioned braking mechanism includes the brake disc 7 being used in conjunction with each other and braking clamp 8, brake disc 7 are fixed on the wheel hub 2
On, braking clamp 8 is fixed on left lateral star wheel frame 35.So that braking clamp 8 is fixed, when braking clamp 8 is connected to brake
It can apply brake force to brake disc 7 after vehicle instruction, and then make wheel hub tire braking deceleration or Brake stop.Brake disc 7 with
The position of braking clamp 8 can also be arranged as required to, on the right of right lateral star wheel series, can also be arranged as required in left lateral star
Between train and right lateral star wheel series.Damper connector 9, turning machine connector 11 and swing arm is also fixed on left lateral star wheel frame 35 to connect
First 12.
In the present embodiment, the gear ratio of left lateral star wheel series 3 is more than the gear ratio of right lateral star wheel series 4, i.e. left lateral star wheel series 3 are
Low-range reduction device, right lateral star wheel series 4 are high speed retarder.The tooth top of ring gear (i.e. left inside gear ring 31) in left lateral star wheel series
Diameter is more than the tooth tip diameter (see figure 1) of the ring gear (i.e. right ring gear 41) of the right lateral star wheel series, thus when needs
During maintenance wheel hub tire, it is possible to easily and quickly wheel hub tire from hub motor for electric automobile driving device
Right side disassemble and reinstall back.
Using the hub motor for electric automobile driving device of the invention described above, electric vehicle shares following five kinds of Working moulds
Formula：Neutral gear start-up mode, low-speed running mode, high speed driving mode, sliding brake function power generation mode and reverse travel pattern.
Neutral gear start-up mode, when electric vehicle starts, controller 10 instructs left clutch 52 to locate with right clutch 51
In off-state, left lateral star wheel series 3 (low-range reduction device) and right lateral star wheel series 4 (high speed retarder) are inoperative, motor 6
It is powered to rotating forward and starts electric vehicle, hub motor for electric automobile driving device is operated in neutral gear start-up mode.At this point, electric vehicle
It is No Load Start, entire start-up course was not only safe and reliable but also quick economical.
Low-speed running mode, when electric vehicle is started to walk, run at a low speed, controller 10 instructs right clutch 51 and right lateral star
Train 4 is off, left clutch 52 is in bonding state, left lateral star wheel series 3 (low-range reduction device) with left lateral star wheel series 3
Work, motor 6, which is powered, to be rotated forward, and hub motor for electric automobile driving device is operated in low-speed running mode.At this point, motor 6
The higher middle low rotation speed section of efficiency can be operated in, and the driving torque that wheel hub tire obtains is larger, electric vehicle
Dynamic property and better economy.
High speed driving mode, when electric vehicle high speed when driving, controller 10 instructs left clutch 52 and left lateral star
Train 3 is off, right clutch 51 is in bonding state with right lateral star wheel series 4, and right lateral star wheel series 4 (slow down by high speed
Device) work, motor 6, which is powered, to be rotated forward, and hub motor for electric automobile driving device is operated in high speed driving mode.It is at this point, electric
Motivation can be operated in the higher high speed rotating speed section of efficiency, and the driving torque that wheel hub tire obtains is moderate, electronic vapour
The comprehensive performance of vehicle is preferable.
Sliding brake function power generation mode, when electric vehicle sliding brake function, controller 10 instructs left clutch 52 and left lateral star
Train 3 is off, and right clutch 51 is in bonding state with right lateral star wheel series 4, and right lateral star wheel series 4 (slow down by high speed
Device) it works, motor 6 drags dynamic brake by counter, and hub motor for electric automobile driving device is operated in sliding brake function power generation mode.
At this point, the part sliding brake function energy of electric vehicle is converted into electric energy feedback to accumulator, the economy of electric vehicle by motor
Property is preferable.
Reverse travel pattern, when electric vehicle is moved backward, controller 10 instructs right clutch 51 to be in right lateral star wheel series 4
Off-state, left clutch 52 are in bonding state with left lateral star wheel series 3, and left lateral star wheel series 3 (low-range reduction device) work is electronic
Machine 6, which is powered, to be inverted, and hub motor for electric automobile driving device is operated in reverse travel pattern.At this point, motor 6 can be operated in
The higher middle low rotation speed section of efficiency, and the driving torque that wheel hub tire obtains is larger, the dynamic property and warp of electric vehicle
Ji property is preferable.
In addition, when electric vehicle is in during any one above-mentioned operating mode, controller 10 can as needed with
When caliper 8 is controlled to apply brake force to brake disc 7, and then make wheel hub tire braking deceleration or Brake stop.At this point, controller
10 can control hub motor for electric automobile driving device to be quickly switched into sliding brake function power generation mode, this both ensure that electronic vapour
The handling and security of vehicle, and improve the economy of electric vehicle.
In conclusion the wheel motor drive device of electric vehicle of the present invention and electric vehicle method of work, by wheel hub
Motor driver is divided into several big modules：Motor, left lateral star wheel series, right lateral star wheel series and controller, by each module with accurate right
Claim formal distribution, the cross section of wheel motor drive device is made both to have had and circumferentially symmetrically (circumferentially symmetrically refers to each module with motor
Circumferentially be uniformly distributed around motor shaft centered on axis) design feature there is approximate symmetrical design feature again；It is accurate symmetrical
Flexibility when stationarity and motor turning when structure distribution greatly improves electric vehicle vehicle wheel rotation manipulate；Succinctly
Modular construction and double-planet train rational allocation, it is convenient when security when both having improved automobilism and use
Property motor is allowd to be operated in efficient rotating speed section according to the needs of Electric Vehicles Driving Cycle again, so as to both carrying
The dynamic property of high electric vehicle improves the economy of electric vehicle again.So the present invention effectively overcomes in the prior art
Various shortcoming and have high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (8)
1. a kind of wheel motor drive device of electric vehicle, including motor（6）, left lateral star wheel series（3）, right lateral star wheel series
（4）, braking mechanism and be fixed on motor（6）Interior and control motor（6）The controller of action（10）, which is characterized in that
Left lateral star wheel series（3）With right lateral star wheel series（4）It is symmetrically distributed in motor（6）The left and right sides；Wherein,
Motor（6）Including with wheel hub（2）The motor shaft being rotatedly connected（61）, motor shaft（61）Left end be equipped with left clutch
（52）, motor shaft（61）Right end be equipped with right clutch（51）, left clutch（52）, right clutch（51）And controller（10）
It is connected；
Left lateral star wheel series（3）With right lateral star wheel series（4）, including sun gear, the planetary gear of at least three rotational positionings and solid
The ring gear being scheduled in wheel hub wall, all planetary gears are circumferentially uniformly distributed and are meshed with sun gear around sun gear, institute
There is planetary gear to be respectively positioned in ring gear and be meshed with ring gear；
Two sun gears are symmetrically mounted on motor shaft（61）Left and right ends and and motor shaft（61）Rotation connection, left clutch
（52）In controller（10）Control under with left lateral star wheel series（3）In sun gear be in combine or off-state, right clutch
（51）In controller（10）Control under with right lateral star wheel series（4）In sun gear be in combine or off-state.
2. the wheel motor drive device of electric vehicle according to claim 1, it is characterised in that：The motor（6）
Further include rotor（64）, motor stator（65）And left end cap（63）, right end cap（62）And housing（66）, rotor
（64）And motor stator（65）It is placed in by left end cap（63）, right end cap（62）And housing（66）In the cavity surrounded, the electricity
Arbor（61）With rotor（64）It is fixedly linked, motor shaft（61）Left and right ends be each passed through left end cap（63）And right end cap
（62）, the controller（10）It is fixed on left end cap（63）Or right end cap（62）On.
3. the wheel motor drive device of electric vehicle according to claim 2, it is characterised in that：The motor stator
（65）For hollow web pattern.
4. the wheel motor drive device of electric vehicle according to claim 2, it is characterised in that：The planetary gear rotates
On planet wheel spindle, the left lateral star wheel series（3）In the both ends of all planet wheel spindles be respectively fixed on left lateral star wheel frame
（35）With the housing（66）Left side on, the right lateral star wheel series（4）In one end of all planet wheel spindles be each attached to institute
State housing（66）Right side on.
5. the wheel motor drive device of electric vehicle according to claim 4, it is characterised in that：The braking mechanism bag
Include the brake disc being used in conjunction with each other（7）And braking clamp（8）, brake disc（7）It is fixed on the wheel hub（2）On, braking clamp（8）Gu
It is scheduled on left lateral star wheel frame（35）On.
6. the wheel motor drive device of electric vehicle according to claim 4, it is characterised in that：The left lateral star wheel frame
（35）On be also fixed with damper connector（9）, turning machine connector（11）With swing arm connector（12）.
7. the wheel motor drive device of electric vehicle according to claim 1, it is characterised in that：The left lateral star wheel series
（3）In ring gear tooth tip diameter be more than the right lateral star wheel series（4）Ring gear tooth tip diameter.
8. a kind of method of work of electric vehicle, it is characterised in that：The electric vehicle is used such as any one of claim 1 to 7
The wheel motor drive device of the electric vehicle specifically includes following several operating modes：
Neutral gear start-up mode, electric vehicle start, the motor（6）It rotates forward, the controller（10）Control left clutch
（52）, right clutch（51）Respectively with left lateral star wheel series（3）, right lateral star wheel series（4）It is off；
Low-speed running mode, the controller（10）Control right clutch（51）With right lateral star wheel series（4）It is off, it is left
Clutch（52）With left lateral star wheel series（3）In bonding state, left lateral star wheel series（3）Work, motor（6）It rotates forward；
High speed driving mode, the controller（10）Control left clutch（52）With left lateral star wheel series（3）It is off,
Right clutch（51）With right lateral star wheel series（4）In bonding state, right lateral star wheel series（4）Work, motor（6）It rotates forward；
Sliding brake function power generation mode, the controller（10）Control left clutch（52）With left lateral star wheel series（3）In disconnection shape
State, right clutch（51）With right lateral star wheel series（4）In bonding state, motor（6）Dynamic brake is dragged by counter；
Reverse travel pattern, the controller（10）Control right clutch（51）With right lateral star wheel series（4）It is off, it is left
Clutch（52）With left lateral star wheel series（3）In bonding state, motor（6）Reversion.
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Cited By (1)
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| WO2024067904A1 (en) * | 2022-09-28 | 2024-04-04 | Schaeffler Technologies AG & Co. KG | Electrically operable final drive powertrain, method for controlling a final drive powertrain, computer program product, and control unit for controlling a final drive powertrain |
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| CN106655579B (en) * | 2016-11-30 | 2023-07-18 | 青岛敏深风电科技有限公司 | Hybrid electric vehicle |
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| CN106740061B (en) * | 2017-02-09 | 2023-12-05 | 山东贝格新能源科技有限公司 | Disc hub motor installs snap ring |
| CN107599873A (en) * | 2017-10-11 | 2018-01-19 | 无锡科技职业学院 | The drive device of double wheel hub motor powered automobile |
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