CN206141297U - Vehicle drive -by -wire actuating mechanism , transaxle and electric automobile - Google Patents
Vehicle drive -by -wire actuating mechanism , transaxle and electric automobile Download PDFInfo
- Publication number
- CN206141297U CN206141297U CN201621117961.1U CN201621117961U CN206141297U CN 206141297 U CN206141297 U CN 206141297U CN 201621117961 U CN201621117961 U CN 201621117961U CN 206141297 U CN206141297 U CN 206141297U
- Authority
- CN
- China
- Prior art keywords
- wheel
- outfan
- semiaxis
- transmission
- sun gear
- 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.)
- Active
Links
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to a vehicle drive -by -wire actuating mechanism, transaxle and electric automobile. Wherein, vehicle drive -by -wire actuating mechanism includes motor (101), epicyclie gear (102) and electromagnetic braking ware (103), epicyclie gear (102) have with the continuous input of output shaft transmission of motor (101) to and the first output that is used for linking to each other with first semi -axis (111) transmission of axle one side with be used for the second output that links to each other with second semi -axis (112) transmission of axle opposite side, first output with the second output respectively with the input transmission links to each other, wherein electromagnetic braking ware (103) are including being used for the braking the 1st electromagnetic braking ware (1031) of first output, and be used for the braking the 2nd electromagnetic braking ware (1032) of second output. Through above -mentioned technical scheme, this vehicle drive -by -wire actuating mechanism of openly providing can stabilize and realize the control to the torque output of both sides wheel in a flexible way.
Description
Technical field
It relates to the drive-by-wire field of vehicle, in particular it relates to a kind of vehicle line traffic control drive mechanism, using the machine
The drive axle of structure and the electric automobile using the drive axle.
Background technology
Drive-by-wire mode is increasingly used in Vehicle Engineering, especially with the rise of electric automobile, the line
Control type of drive is also more and more important for the improvement of the performance of electric automobile.Wherein, as drilling from aircraft handling control
The drive-by-wire technology changed and come, is the driving intention using sensor senses driver, and is passed through during wire is conveyed to
Central processor, central processing unit retransmits the associative operation that instruction completes driver to corresponding actuator.Wherein, adopting should
Drive-by-wire mode, can reduce the complexity of part, mitigate quality, reduce oil consumption and manufacturing cost, and also accordingly improve can
By property and safety.Drive-by-wire mode at this stage for the bad control of torque output of the both sides wheel of same drive axle,
Cause vehicle performance not high.
Utility model content
The purpose of the disclosure is to provide a kind of vehicle line traffic control drive mechanism, using the drive axle of the vehicle line traffic control drive mechanism
The torsion that can stablize and neatly realize to both sides wheel with the electric automobile using the drive axle, the vehicle line traffic control drive mechanism
The control of square output.
To achieve these goals, the disclosure provides a kind of vehicle line traffic control drive mechanism, wherein, the vehicle line traffic control driving machine
Structure includes motor, epicyclic train and electromagnetic brake, and the epicyclic train has the output shaft transmission phase with the motor
Input even, and the first outfan for being connected with the transmission of the first semiaxis of vehicle bridge side and for vehicle bridge opposite side
Connected the second outfan of the second semiaxis transmission, first outfan and second outfan respectively with the input
Transmission is connected, wherein the electromagnetic brake includes the first electromagnetic brake for braking first outfan, Yi Jiyong
In the second electromagnetic brake for braking second outfan.
Alternatively, the epicyclic train includes gear ring, the first row star-wheel, the first row carrier, the first sun gear and the
Two planetary gears, the second planet carrier and the second sun gear, the first row star-wheel is engaged on the gear ring and first sun gear
Between, second planetary gear is engaged between the gear ring and second sun gear, and the first row carrier supports described
The first row star-wheel, second planet carrier supports second planetary gear, the gear ring to be driven phase with the output shaft of the motor
Even to form the input, one of the first row carrier and first sun gear are used to be passed with first semiaxis
Dynamic to be connected together to first outfan, another one is connected with first electromagnetic brake, second planet carrier and institute
One of second sun gear is stated for being connected together to second outfan, another one and institute with second semiaxis transmission
State the second electromagnetic brake to be connected.
Alternatively, the center of the first row carrier has the first drive shaft to form first outfan, and this first
Drive shaft is connected with first semiaxis transmission, and there is the second drive shaft to form described second at the center of second planet carrier
Outfan, second drive shaft is connected with second semiaxis transmission.
Alternatively, first sun gear is connected with first electromagnetic brake, second sun gear and described
Two electromagnetic brakes are connected.
Alternatively, the gear ring is connected with the output shaft of the motor by gear drive.
Alternatively, the first row star-wheel is identical with second planetary gear, the first row carrier and second row
Carrier is identical, and first sun gear is identical with second sun gear, first drive shaft and the second drive shaft phase
Together.
On the basis of above-mentioned technical proposal, the disclosure also provides a kind of drive axle, including for being connected with the first wheel
The first semiaxis and with for the second semiaxis for being connected with the second wheel, wherein, the vehicle line traffic control drive for also providing including the disclosure
Motivation structure.
Alternatively, first outfan is connected with first semiaxis by first shaft coupling transmission, and described second is defeated
Go out end to be connected by second shaft coupling transmission with second semiaxis.
On the basis of above-mentioned technical proposal, the disclosure also provides a kind of electric automobile, wherein, including disclosure offer institute
The drive axle stated, and the first wheel being connected on first semiaxis and the second car being connected on second semiaxis
Wheel.
Alternatively, the electric automobile also includes the first wheel speed of controller, wheel speed for detecting first wheel
Sensor and the second wheel speed sensors for detecting the wheel speed of second wheel, first wheel speed sensors and described
Second wheel speed sensors are electrically connected respectively with the controller, the controller respectively with the motor and the electromagnetic brake
Electrical connection.
By above-mentioned technical proposal, two outfans of epicyclic train can stably export the Motor torque of input
Both sides wheel is given, and two outfans can be braked so as to flexibly realize to two respectively by two electromagnetic brakes
The regulation of the torque output of side wheel.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is, for providing further understanding of the disclosure, and to constitute the part of description, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute restriction of this disclosure.In the accompanying drawings：
Fig. 1 is the structure principle chart of the drive-by-wire mechanism that the exemplary first embodiment of the disclosure is provided；
Fig. 2 is the structure principle chart of the drive-by-wire mechanism that the exemplary second embodiment of the disclosure is provided；
Fig. 3 is the structure principle chart of the drive-by-wire mechanism that the 3rd exemplary embodiment of the disclosure is provided.
Specific embodiment
It is described in detail below in conjunction with accompanying drawing specific embodiment of this disclosure.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the disclosure, is not limited to the disclosure.
In the disclosure, in the case where contrary explanation is not made, the noun of locality for using such as " upper and lower, left and right " is typically referred to
Defined on the basis of the drawing aspect of respective drawings." inside and outside " refers to the inner and outer of corresponding component profile.
As shown in Figure 1 to Figure 3, the vehicle line traffic control drive mechanism that the disclosure is provided by schematic three kinds of embodiments,
Ensure that to both sides vehicle stabilization and flexible torque output, the performance such as handling of electric automobile can be effectively improved.
Similar structure, effect in wherein three kinds illustrative embodiments etc. in order to avoid repeat, what is had been described in before
In the case of, do not do and excessively repeat.
As shown in figure 1, in disclosed first embodiment, the vehicle line traffic control drive mechanism includes motor 101, planet tooth
Train 102 and electromagnetic brake 103, epicyclic train 102 has the input being connected with the output shaft transmission of motor 101, with
And for the first outfan being connected with the transmission of first semiaxis 111 of vehicle bridge side and for the second semiaxis with vehicle bridge opposite side
The second connected outfan of 112 transmissions, the first outfan and the second outfan are connected respectively with input transmission, wherein electromagnetic system
Dynamic device 103 includes the first electromagnetic brake 1031 for braking the first outfan, and for braking the of the second outfan
Two electromagnetic brakes 1032.
So, the gear ratio using planetary gear train is big, and the features such as noise is little, the vehicle line traffic control in present embodiment is driven
The Motor torque of input can stably be exported and give both sides wheel by motivation structure using two outfans of epicyclic train, and
Two outfans can be braked respectively by two electromagnetic brakes defeated to the moment of torsion of both sides wheel so as to flexibly realize
The regulation for going out.The error of multi-motor driving motor itself production can be eliminated using single Motor drive in addition so that torque output
It is more stable.The electromagnetic brake for wherein adopting can be quick on the draw in order to the independently-controlled, effectively according to current road conditions by right
The strong and weak change of the braking of corresponding output end lifts the handling of vehicle adjusting the torque output of both sides vehicle.
In the present embodiment, in order to realize an input, the structure of two outfans, epicyclic train 102 includes
Gear ring 104, the first row star-wheel 105, the first row carrier 106, the first sun gear 107 and the second planetary gear 108, the second planet carrier
109 and second sun gear 110, the first row star-wheel 105 is engaged between the sun gear 107 of gear ring 104 and first, the second planetary gear
108 are engaged between gear ring and the second sun gear, and the first row carrier 108 supports the first row star-wheel 105, the second planet carrier 109
The second planetary gear 108 is supportted, gear ring 104 is connected together to input, the first row carrier and first with the output shaft transmission of motor 101
One of sun gear is used to be connected together to the first outfan, another one and the first electromagnetic braking with the transmission of the first semiaxis 111
Device 1031 is connected, and one of the second planet carrier and the second sun gear are used to be connected together to second with the transmission of the second semiaxis 112
Outfan, another one is connected with the second electromagnetic brake 1032.That is, epicyclic train 102 uses a gear ring 104 as input
End, and while there are two outfans.Wherein, one of planet carrier and sun gear are used to brake as outfan another one,
It is effectively utilized the construction featuress of epicyclic train.In other embodiments, outfan can also be simultaneously used to brake.Example
As exported using planet carrier and being braked simultaneously.
Specifically, in the present embodiment, there is the first drive shaft 113 to form the first output at the center of the first row carrier
End, first drive shaft is connected with the transmission of the first semiaxis 111, and the center of the second planet carrier has the second drive shaft 114 to be formed
Second outfan, second drive shaft is connected with the transmission of the second semiaxis 112.I.e. present embodiment is exported using planet carrier, output
Efficiency high.In addition, the first sun gear 107 is connected with the first electromagnetic brake 1031, the second sun gear 110 and the second electromagnetic braking
Device 1032 is connected, i.e., braked using sun gear, and braking effect is obvious.When needing to be braked a certain outfan, only need to lead to
Cross corresponding electromagnetic brake to be braked corresponding sun gear.
Wherein electromagnetic brake is known in the art part, is a kind of preferable automated execution element in modern industry,
The effect such as transmission power and control motion, simple to operate with compact conformation, response spirit are acted primarily as in machine driven system
Quick, the life-span is permanent, using reliability, it is easy to accomplish the advantages of distant control.In the present embodiment, it can be installed to the sun
On the output shaft of wheel, produce after electric magnet therein is controlled obtains electric and output shaft on sun gear is braked.Work as sun gear
After being braked deceleration or stalling, force corresponding planetary gear to slow down or stall, now enable to defeated by the moment of torsion of planet carrier
Go out and weaken or stop, so as to play the control to corresponding side wheel.
In the present embodiment, in order to realize the transmission between gear ring 104 and motor 101, alternatively, gear ring 104 with electricity
The output shaft of machine 101 is connected by gear drive, such as by bonded gear on the output shaft of motor, the gear can and tooth
The outside tooth engagement of circle.So as to form the input of epicyclic train 102.In other embodiment, motor 101 and gear ring 104
Between can also be using the other modes such as Chain conveyer, V belt translation.
In the present embodiment, it is synchronized with the movement to ensure stablizing for both sides vehicle, the planet of the first row star-wheel 105 and second
Take turns 108 identical, the first row carrier 106 is identical with the second planet carrier 109, and the first sun gear 107 is identical with the second sun gear 110,
First drive shaft 113 is identical with the second drive shaft 114.No matter i.e. structure, quantity, the chi of gear ring to each part of two outfans
Very little and assembling mode all same, so as to guarantee so that two outfans are not in the case where being braked, can be synchronous
Stable carries out torque output.
So, according to above-mentioned drive-by-wire mechanism, present embodiment also provides a kind of drive axle, and the drive axle includes using
In the first semiaxis 111 being connected with the first wheel 117 and with for the second semiaxis 112, Yi Jiben for being connected with the second wheel 118
Vehicle line traffic control drive mechanism above-mentioned in embodiment.Wherein in order to lift the adaptability of both sides wheel, the first outfan and
One semiaxis can be connected by the transmission of first shaft coupling 115, and the second outfan and the second semiaxis can pass through second shaft coupling 116
Transmission is connected.Used as part known in this field, its universal joint shaft feature can cause connected two axle in different line feelings to shaft coupling
Realize that power is transmitted under condition so that the better adaptability of wheel.
Further, the electric automobile for providing in present embodiment, including above-mentioned drive axle, and it is connected to the first half
The first wheel 117 and the second wheel 118 being connected on the second semiaxis 112 on axle 111.Additionally, in the present embodiment, such as
Shown in Fig. 1, electric automobile also include controller 119, for detect the first wheel wheel speed the first wheel speed sensors 120 and
For detecting the second wheel speed sensors 121 of the wheel speed of the second wheel, the first wheel speed sensors and the second wheel speed sensors are distinguished
It is electrically connected with the controller, controller is electrically connected respectively with motor and electromagnetic brake.Wherein controller can be integrated in car load control
In device (VCU) processed or using independent controller such as microprogram control unit (MCU), so as to according to the wheel speed of current left and right wheels
Motor 101 and two electromagnetic brakes are controlled respectively, the overall drive-by-wire to vehicle is realized.Wherein controller and sensor
And signal transmission can be realized by CAN between each controlled part.
Wherein adjusting the torque output to two wheels by wheel speed can be in vehicle travel process in two bus or train routes
Produce different braking moments, in real time the kinestate of amendment vehicle body, can realize preventing vehicle slip, prevent vehicle rollover,
Vehicle whipping etc. function is prevented, the intellectuality of electric automobile is greatly improved.Wherein specific control mode is by with reference to following
Second embodiment and the 3rd embodiment are illustrated together.
The above-mentioned first embodiment that the disclosure is described with reference to Fig. 1, with reference to Fig. 2 the second enforcement of the disclosure is introduced
Mode.
As shown in Fig. 2 the vehicle line traffic control drive mechanism that disclosure second embodiment is provided include the first motor 2011, the
Two motors 2012, first planet gear train 2021, the second epicyclic train 2022 and differential mechanism 222, first planet gear train
2021 have a first input end being connected with the transmission of the output shaft of the first motor 2011, and for the first half with vehicle bridge side
The first connected outfan of the transmission of axle 211, the second epicyclic train 2022 has the output shaft transmission phase with the second motor 2012
The second input even, and the 3rd outfan for being connected with the transmission of second semiaxis 212 of vehicle bridge opposite side, first planet
Gear train also has the second outfan, and the second epicyclic train also has the 4th outfan, the second outfan and the 4th outfan
It is connected respectively in the both sides of differential mechanism.
So, the drive-by-wire mechanism in second embodiment adopts Dual-motors Driving, so that driving energy foot, two
Individual epicyclic train can be respectively two motors and carry out intermediate transmission, big with gear range, the characteristics of noise is little.In addition
Due to being driven using independent two and drive mechanism, therefore it is connected between two epicyclic trains using differential mechanism, can be with
Prevent the rotating speed of left and right wheels both can be consistent so as to correct left and right driving motor from completely the same band in straight trip
The error come, can realize the difference in wheel of both sides wheel when turning again.Additionally by the independent control to two motors, can be with
Realize the control to left and right wheelses output torque.Differential mechanism wherein in present embodiment can be well known in the art common
The differential mechanism of differential mechanism, or band brake function.
In the present embodiment, as shown in Fig. 2 first planet gear train includes the first gear ring 2041, the first row star-wheel
205th, the first row carrier 206, the first sun gear 207, the second epicyclic train include the second gear ring 2042, the second planetary gear 208,
Second planet carrier 209 and the second sun gear 210, the first row star-wheel 105 is engaged between the first gear ring 2041 and the first sun gear,
Second planetary gear is engaged between the second gear ring 2042 and the second sun gear, and the first row carrier supports the first row star-wheel, the second row
Carrier supports the output shaft transmission of the second planetary gear, the first gear ring 2041 and the first motor 2011 to be connected together to the first input
One of end, the sun gear 207 of the first row carrier 206 and first are defeated for being connected together to first with the transmission of the first semiaxis 210
Go out end, another one is connected together to the second outfan, in the second planet carrier 208 and the second sun gear 210 with differential mechanism 222
Person is used to be connected together to the 3rd outfan with the transmission of the second semiaxis 211, and it is defeated that another one is connected together to the 4th with differential mechanism 222
Go out end.That is, two epicyclic trains can be with relatively independent the transmission realized to two motors to two wheels.
In the present embodiment, as described in Figure 2, further, the center of the first row carrier have the first drive shaft 213 with
The first outfan is formed, first drive shaft is connected with the transmission of the first semiaxis 211, the center of the second planet carrier drives with second
To form the 3rd outfan, second drive shaft is connected axle 214 with the transmission of the second semiaxis 212.Planet carrier is adopted to enter for wheel
Row torque output, delivery efficiency is higher.In addition, in the present embodiment, the first sun gear is connected with shape with the side of differential mechanism
Into the second outfan, the second sun gear is connected together to the epicyclic train of the 4th outfan, i.e., two with the opposite side of differential mechanism
System two sun gears by differential mechanism be connected, so that different road conditions can be realized under two planetary gear systems normal table
Output.
With first embodiment similarly, between the output shaft of the first gear ring 2041 and the first motor 2011, the second gear ring
2042 and second motor 2012 output shaft between by gear drive connect.Also to ensure that to the normal row of both sides wheel
The torque output sailed under state is consistent, and the first motor 2041 is identical with the second motor 2011, first planet train 2021 and second
Planet circular system 2022 is identical and is symmetrical arranged with regard to differential mechanism.The identical species for referring to the part for possessing therein, quantity, size
With assembling mode all same.
Second embodiment provide drive axle in, including the first semiaxis for being connected with the first wheel 217 and with
For the second semiaxis being connected with the second wheel 218, and the vehicle line traffic control drive mechanism in above-mentioned second embodiment.Tool
Body ground, the first outfan is driven by first shaft coupling 215 with the first semiaxis 211 and is connected, the 3rd outfan and the second semiaxis 212
It is connected by the transmission of second shaft coupling 216.
The electric automobile provided in second embodiment includes the drive axle that above-mentioned second embodiment is provided, Yi Jilian
The first wheel 217 being connected on the first semiaxis 211 and the second wheel 218 being connected on the second semiaxis 212.In addition, this enforcement
Electric automobile in mode also include controller 219, for detect the first wheel wheel speed the first wheel speed sensors 220 and
For detecting the second wheel speed sensors 221 of the wheel speed of the second wheel, the first wheel speed sensors and the second wheel speed sensors are distinguished
Electrically connect with controller 219, controller 219 is electrically connected respectively with the first motor and the second motor.I.e. controller can be according to wheel
Speed is individually controlled two motors, so as to export different moments of torsion according to demand.So that wheel adapts to different road conditions.
Wherein adjusting the torque output to two wheels by wheel speed can be in vehicle travel process in two bus or train routes
Produce different braking moments, in real time the kinestate of amendment vehicle body, can realize preventing vehicle slip, prevent vehicle rollover,
Vehicle whipping etc. function is prevented, the intellectuality of electric automobile is greatly improved.Wherein specifically control mode by with reference to following
First embodiment and the 3rd embodiment are illustrated together.
Above describe disclosure second embodiment, it is following middle the 3rd embodiment of the disclosure to be introduced with reference to Fig. 3.
As shown in figure 3, in the vehicle line traffic control drive mechanism that the 3rd embodiment is provided, including with the first output shaft and
The motor 301 of the second output shaft, first planet gear train 3021, the second epicyclic train 3022 and differential mechanism 322, first planet
Gear train 3021 has the first input end being connected with the transmission of the first output shaft, and for the first semiaxis with vehicle bridge side
The first connected outfan of 311 transmissions, the second epicyclic train 3022 has the second input being connected with the transmission of the second output shaft
End, and the 3rd outfan for being connected with the transmission of second semiaxis 312 of vehicle bridge opposite side, first planet gear train 3021 is also
With the second outfan, the second epicyclic train 3022 also has the 4th outfan, and the second outfan and the 4th outfan are distinguished
First brake 3031 is connected in the both sides of differential mechanism 322 and is connected between the second outfan and differential mechanism 322, the
Second brake 3032 is connected between four outfans and differential mechanism.
So, in the present embodiment, the single motor for employing dual output is driven, and can reduce using two motors
Due to the driving error that the factors such as manufacture are brought, equally it is driven using two independent epicyclic trains, it is big with ratio is passed,
The characteristics of noise is little, in addition with second embodiment similarly, is connected two independent epicyclic trains using differential mechanism, can
To ensure the both sides wheel adjustment during vehicle is kept straight on and turned.Two independences are carried out additionally, due to using single motor
Epicyclic train be driven, in order to realize the regulation to both sides vehicle output torque, present embodiment is additionally used as two
Side epicyclic train is equipped with the mode of brake, so by two brakes of independent control, can freely control both sides
On-position.Two of which brake can be in the present embodiment various mechanical brakes that can be automatically controlled on market,
For example, the rotating friction plate being attached on corresponding power transmission shaft can be included, and relative to the brake tooth that vehicle frame is fixed, can be passed through
Control brake tooth and the friction teeth of friction plate periphery engage or are disengaged from realizing braking.In other embodiments,
The electromagnetic brake in first embodiment can be adopted to realize.Differential mechanism wherein in present embodiment can be in the art
The differential mechanism of known open differential, or band brake function.
In the present embodiment, two independent epicyclic trains are driven in order to realize a dual-output motor, such as Fig. 2 institutes
Show, first planet gear train includes the first gear ring 3041, the first row star-wheel 305, the first row carrier 306, the first sun gear 307,
Second epicyclic train includes the second gear ring 3042, the second planetary gear 308, the second planet carrier 309 and the second sun gear 310, the
One planetary gear 305 is engaged between the first gear ring 3041 and the first sun gear 307, and the second planetary gear is engaged on the second gear ring 3042
And second between sun gear 310, the first row carrier 306 supports the first row star-wheel 305, the second planet carrier 309 to support the second planet
Wheel 308, the first gear ring 3041 and the transmission of the first output shaft are connected together to first input end, the second gear ring 3042 and the second output
Axle transmission is connected together to the second input, and one of the first row carrier and the first sun gear are used to be driven phase with the first semiaxis
Even to form the first outfan, another one is connected together to the second outfan with the first brake, and the second planet carrier and second is too
One of sun wheel is used to be connected together to the 3rd outfan with the transmission of the second semiaxis, and another one is connected with shape with second brake
Into the 4th outfan.
More specifically, the center of the first row carrier 306 has the first drive shaft 313 to form the first outfan, this first
Drive shaft is connected with the transmission of the first semiaxis 311, and the center of the second planet carrier 309 has the second drive shaft 314 defeated to form the 3rd
Go out end, second drive shaft is connected with the transmission of the second semiaxis 312.I.e. in the present embodiment, still using planet carrier as vehicle
Outfan.In addition, the first sun gear 307 and the first brake 3031 are connected together to the second outfan, the second sun gear 310
The 4th outfan is connected together to second brake 3032, i.e., using sun gear as braked wheel.
In addition, between the first gear ring 3041 and the first output shaft, passing through between the second gear ring 3042 and the second output shaft
Gear drive connects.
In order to ensure the stable traveling of both sides vehicle, first planet train 3021 and the identical and pass of the second planet circular system 3022
It is symmetrical arranged in differential mechanism 322, the first brake 3031 is identical with second brake 3032 and symmetrically sets with regard to differential mechanism 322
Put.So as in normally travel, for the identical torque output that both sides vehicle is provided, and it is easy to control.
In the drive axle for providing in the present embodiment, including the first semiaxis 311 for being connected with the first wheel 317 and
With for the second semiaxis 312 for being connected with the second wheel 318, also including present embodiment in above-mentioned vehicle line traffic control driving machine
Structure.Wherein, the first outfan is connected with the first semiaxis 311 by the transmission of first shaft coupling 315, the 3rd outfan and the second semiaxis
312 are connected by the transmission of second shaft coupling 316.
In the electric automobile that present embodiment is provided, including present embodiment provides drive axle, and is connected to first
The first wheel 317 and the second wheel 318 being connected on the second semiaxis 312 on semiaxis 311.In addition, the electric automobile is also wrapped
Include controller 319, for detect the first wheel wheel speed the first wheel speed sensors 320 and for detect the second wheel wheel
Second wheel speed sensors 321 of speed, the first wheel speed sensors and the second wheel speed sensors are electrically connected with the controller respectively, controller
Electrically connect with motor, the first brake and second brake respectively.The moment of torsion of both sides vehicle can be entered according to both sides wheel speed
Row is adjusted.
Wherein adjusting the torque output to two wheels by wheel speed can be in vehicle travel process in two bus or train routes
Produce different braking moments, in real time the kinestate of amendment vehicle body, can realize preventing vehicle slip, prevent vehicle rollover,
Vehicle whipping etc. function is prevented, the intellectuality of electric automobile is greatly improved.
In each embodiment of the disclosure, when daily driving conditions, corresponding motor obtains electric work, through planetary gear
System, the mechanism such as corresponding shaft coupling, corresponding semiaxis drives left and right wheel rotation, second and the 3rd the differential mechanism in embodiment exist
When vehicle is kept straight on, the production error of both sides motor itself is eliminated, make the driving moment of left and right wheel equal.In addition, turning
In etc. road conditions traveling, the wheel speed of both sides vehicle is perceived by controller, by two motors in control second embodiment, or
The on-position of two brakes in the embodiment of person first and the 3rd come control to control both sides wheel torque output,
So as to produce different braking moments.
Below as a example by preventing vehicle slip, prevent vehicle rollover, ABS anti-locks, each embodiment of the description disclosure is carried
For the application under special circumstances of drive-by-wire mechanism, wherein realizing following feelings by adjusting the output torque of both sides vehicle
The principle of the process of condition is known to those skilled in the art.
Prevent vehicle slip：Electric automobile is often all-wheel drive, and it is control anti-slip that differential and difference power control are designs
Two big research directions.Wherein, each wheel turning radius is different during steering, it is desirable to which each wheel can be with different rotational speeds. when
When each wheel contact pavement behavior is variant, traction is different, and the maximum drawbar pull of each wheel output is also different, if do not entered
Row is adjusted, and system power output is consistent, and pull strength is just determined by that minimum wheel of adhesive force, that is, drive each wheel
Pull strength is power no more than adhering to, and otherwise the wheel will skid.The driving force of so whole vehicle is possible to drive
Dynamic whole vehicle advances, therefore it is required that each wheel can realize difference, difference power control.Can install in each embodiment of the disclosure
Speed probe, can in Real-time Feedback vehicle operation each wheel rotating speed, by controller according to meter set in advance
Calculation program judges that wheel whether in slipping state, for example, presets wheel speed threshold, difference in wheel threshold value.By real-time wheel speed and threshold value
Between comparison, Current vehicle whether normally travel can be learnt, so, controller can be controlled accordingly by automatically controlled mode
The on-position of output and/or the brake of motor so that each wheel side semiaxis results from the driving that vehicle body running status is consistent
Torque and rotating speed, or directly will skid to take turns is changed into quick condition from driving condition, that is, stop torque output.So system can
To re-establish work torque, vehicle slip is prevented.
Differential braking prevents vehicle rollover：Automobile can be produced when there is understeer and deviateed on the outside of ideal trajectory
Tendency, and ovdersteering then contrast has the tendency of to deviate to ideal trajectory inner side.Therefore in order to correct deficiency
Turn to or ovdersteering tendency, need to produce a reverse-biased boat torque, the present invention is by the control to motor and/or corresponding brake
System can be realized for both sides vehicle realizes differential braking, and when there is understeer, brake force can act on the trailing wheel of inner side
On, and in serious ovdersteering, it may appear that whipping, this tendency can be braked by the front-wheel to outside is entangled
Just, vehicle is brought back on desired geometric locus.
In addition ABS anti-locks are：ABS mainly has two aspect effects, and one is in order to prevent wheel lock up, when keeping braking
Road holding, two is to shorten automobile brake distance.During vehicle emergency brake, with the increasing of braking moment
By force, relative slip, i.e. the two speed can be produced between vehicle body and tire and there is certain difference, the wheel for originally rolling gradually goes out
The trend of existing tire locking, its rollability is less and less, and the motion between road surface is more intended to slide.Slip rate is exactly
For describing the physical quantity that tire is converted to locking state by rolling condition.Braking procedure can be with braking moment and ground friction
The dynamic system that power is constituted describing, when slip rate refers to braking, the ratio in wheel movement shared by slip composition, λ is
Wheel slip, when between tire and road surface being the kinestate of complete rolling, defines λ=0, when being between tire and road surface
During the kinestate for sliding completely, λ=1 is defined, when tire and road surface are between the kinestate in rolling and sliding, 0
＜ λ ＜ 1.
When so vehicle is braked, the attachment system that it is critical only that between slip rate and tire and road surface interface of tire locking
Number is in certain nonlinear curve relation.When the achievable vehicle of each embodiment of the disclosure starts braking, system is rapidly provided
Dynamic pressure, now wheel wheel speed decline is rapid, wheel slip increase, and wheel starts steady with slip rate curve from attachment coefficient
Determine area and turn to unstable region.When the unstable region of wheel arrival curve, monitored by wheel speed sensors, information is passed to into control
Device processed, controller sends buck signal, so as to reduce the braking moment of corresponding side wheel rapidly, makes slip rate matching.It is logical
Reduction braking moment is crossed, slip rate value is revert to behind stability region, now carry out pressure holding.When sliding rate score is slided to optimal
During the skew of shifting rate left side, motor output torque is set to become big, plus large braking torque, above procedure is repeated, and reaches ABS's
Braking effect.
Three kinds of optional embodiments of the disclosure are described in detail above in association with accompanying drawing, but, the disclosure is not limited to
Detail in above-mentioned embodiment, in the range of the technology design of the disclosure, can be carried out with technical scheme of this disclosure
Various simple variants, these simple variants belong to the protection domain of the disclosure.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the disclosure to it is various can
The compound mode of energy is no longer separately illustrated.
Additionally, combination in any can also be carried out between three kinds of different embodiments of the disclosure, as long as it is without prejudice to this
Disclosed thought, it should equally be considered as disclosure disclosure of that.
Claims (10)
1. a kind of vehicle line traffic control drive mechanism, it is characterised in that the vehicle line traffic control drive mechanism includes motor (101), planet tooth
Train (102) and electromagnetic brake (103), the epicyclic train (102) is driven with the output shaft with the motor (101)
Connected input, and for first semiaxis (111) of vehicle bridge side the first outfan for being connected of transmission and for car
The second outfan that second semiaxis (112) transmission of bridge opposite side is connected, first outfan and second outfan point
Be not connected with input transmission, wherein the electromagnetic brake (103) include for brake first outfan the
One electromagnetic brake (1031), and for braking second electromagnetic brake (1032) of second outfan.
2. vehicle line traffic control drive mechanism according to claim 1, it is characterised in that the epicyclic train (102) includes
Gear ring (104), the first row star-wheel (105), the first row carrier (106), the first sun gear (107) and the second planetary gear (108),
Second planet carrier (109) and the second sun gear (110), the first row star-wheel (105) is engaged on the gear ring (104) and described
Between first sun gear, second planetary gear is engaged between the gear ring and second sun gear, the first planet
Frame (108) supports the first row star-wheel (105), second planet carrier (109) to support second planetary gear (108),
The gear ring is connected together to the input with the output shaft transmission of the motor (101),
One of the first row carrier and first sun gear are used to be connected with shape with first semiaxis (111) transmission
Into first outfan, another one is connected with first electromagnetic brake (1031),
One of second planet carrier and second sun gear are used to be connected with shape with second semiaxis (112) transmission
Into second outfan, another one is connected with second electromagnetic brake (1032).
3. vehicle line traffic control drive mechanism according to claim 2, it is characterised in that the center of the first row carrier has
To form first outfan, first drive shaft is connected first drive shaft (113) with first semiaxis (111) transmission,
The center of second planet carrier has the second drive shaft (114) to form second outfan, second drive shaft and institute
State the second semiaxis (112) transmission to be connected.
4. the vehicle line traffic control drive mechanism according to Claims 2 or 3, it is characterised in that first sun gear with it is described
First electromagnetic brake is connected, and second sun gear is connected with second electromagnetic brake.
5. vehicle line traffic control drive mechanism according to claim 2, it is characterised in that the output of the gear ring and the motor
Axle is connected by gear drive.
6. vehicle line traffic control drive mechanism according to claim 3, it is characterised in that the first row star-wheel and described second
Planetary gear is identical, and the first row carrier is identical with second planet carrier, first sun gear and second sun gear
Identical, first drive shaft is identical with second drive shaft.
7. a kind of drive axle, including the first semiaxis for being connected with the first wheel (117) and with for and the second wheel (118)
The second connected semiaxis, it is characterised in that also include the vehicle line traffic control driving machine according to any one in claim 1-6
Structure.
8. drive axle according to claim 7, it is characterised in that first outfan and first semiaxis are by the
One shaft coupling (115) transmission is connected, and second outfan is driven phase with second semiaxis by second shaft coupling (116)
Even.
9. a kind of electric automobile, it is characterised in that include the drive axle according to claim 7 or 8, and be connected to described
The first wheel on first semiaxis and the second wheel being connected on second semiaxis.
10. electric automobile according to claim 9, it is characterised in that the electric automobile also include controller (119),
For detecting first wheel speed sensors (120) and wheel speed for detecting second wheel of the wheel speed of first wheel
The second wheel speed sensors (121), first wheel speed sensors and second wheel speed sensors respectively with the controller
Electrical connection, the controller is electrically connected respectively with the motor and the electromagnetic brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621117961.1U CN206141297U (en) | 2016-10-11 | 2016-10-11 | Vehicle drive -by -wire actuating mechanism , transaxle and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621117961.1U CN206141297U (en) | 2016-10-11 | 2016-10-11 | Vehicle drive -by -wire actuating mechanism , transaxle and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206141297U true CN206141297U (en) | 2017-05-03 |
Family
ID=58620767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621117961.1U Active CN206141297U (en) | 2016-10-11 | 2016-10-11 | Vehicle drive -by -wire actuating mechanism , transaxle and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206141297U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107599828A (en) * | 2017-09-13 | 2018-01-19 | 浙江硕智工贸有限公司 | For three-wheel or the rear-guard assembly of carriage rear wheel drive and bi-directional braking integration |
| CN109677209A (en) * | 2017-10-18 | 2019-04-26 | 郑州宇通客车股份有限公司 | A kind of drive axle disconnecting semiaxis and its control method |
| CN114056124A (en) * | 2021-12-16 | 2022-02-18 | 东风德纳车桥有限公司 | Electric drive axle control method and system of electric automobile and electric automobile |
-
2016
- 2016-10-11 CN CN201621117961.1U patent/CN206141297U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107599828A (en) * | 2017-09-13 | 2018-01-19 | 浙江硕智工贸有限公司 | For three-wheel or the rear-guard assembly of carriage rear wheel drive and bi-directional braking integration |
| CN109677209A (en) * | 2017-10-18 | 2019-04-26 | 郑州宇通客车股份有限公司 | A kind of drive axle disconnecting semiaxis and its control method |
| CN109677209B (en) * | 2017-10-18 | 2021-05-14 | 郑州宇通客车股份有限公司 | Control method of drive axle capable of disconnecting half shaft |
| CN114056124A (en) * | 2021-12-16 | 2022-02-18 | 东风德纳车桥有限公司 | Electric drive axle control method and system of electric automobile and electric automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206141298U (en) | Vehicle drive -by -wire actuating mechanism , transaxle and electric automobile | |
| CN101519040B (en) | Double-motor skidproof differential drive axle of electric automobile | |
| CN106347112B (en) | A kind of double planet row-type electric drive assembly and its driving method | |
| CN201800514U (en) | Dual-motor driving assembly for electric vehicle | |
| TWI618879B (en) | Driving system having epicycle gear sets with dual output ends equipped with individually-controlled multiple speed-ratio device | |
| CN102133856A (en) | Dual-motor rotating speed coupling drive assembly | |
| CN202690954U (en) | Differential mechanism with motor auxiliary drive fork type slip-limiting differential lock | |
| CN206589652U (en) | Bi-motor pure electric drive system and the electric automobile using the system | |
| CN206141297U (en) | Vehicle drive -by -wire actuating mechanism , transaxle and electric automobile | |
| EP2556990B1 (en) | A wheel drive architecture for electric vehicles | |
| CN207825938U (en) | A kind of driving mechanism and automobile | |
| CN105172570A (en) | Dual-mode hybrid power transmission device | |
| CN110203059A (en) | A kind of electric car bi-motor distribution drive system | |
| CN113415107A (en) | Two-mode electric drive axle capable of carrying out torque parallel connection and torque directional distribution | |
| CN206141296U (en) | Vehicle drive -by -wire actuating mechanism , transaxle and electric automobile | |
| JP6228369B2 (en) | Differential system | |
| CN104626978B (en) | Vehicle active-type differential gearing vehicle bridge | |
| CN208134055U (en) | A kind of pure electric vehicle motor driven systems and electric vehicle | |
| CN108327496B (en) | Dual-motor pure electric driving system and electric automobile using same | |
| US11674579B2 (en) | Planetary gear train automatic limited slip differential | |
| CN209257869U (en) | Wheel undercarriage and unmanned platform truck | |
| CN102889353B (en) | Brake drum differential transfer case | |
| JP2010528240A (en) | Torque transmission device and system | |
| CN209650025U (en) | Emergency is got rid of poverty wheel undercarriage and unmanned platform truck | |
| CN209581148U (en) | A kind of novel hybrid powertrain system applied in wheel excavator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |