CN105034782B - A kind of electric vehicle multi-mode dynamical system - Google Patents
A kind of electric vehicle multi-mode dynamical system Download PDFInfo
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- CN105034782B CN105034782B CN201510573696.1A CN201510573696A CN105034782B CN 105034782 B CN105034782 B CN 105034782B CN 201510573696 A CN201510573696 A CN 201510573696A CN 105034782 B CN105034782 B CN 105034782B
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Abstract
The invention discloses a kind of electric vehicle multi-mode dynamical systems, including controller, main drive motor, stand-by motor, planetary gear train, first clutch and second clutch；The sun gear of the main shaft for driving motor and planetary gear train connects, and the planet carrier of planetary gear train is power output end, and the active part of clutch is connected to the gear ring of planetary gear train, and the secondary part of clutch is connected to the sun gear of planetary gear train；The shaft of stand-by motor is connected to the gear ring of planetary gear train, and rack gear brake is arranged on the gear ring.Electric vehicle multi-mode power system architecture of the present invention is simple, it can be achieved that torque coupling and rotating speed coupling driving pattern.
Description
Technical field
The present invention relates to electric vehicle fields, more particularly to a kind of electric vehicle multi-mode dynamical system.
Background technology
Different from conventional fuel oil automobile, the power system architecture schematic diagram of conventional centralized driving formula pure electric vehicle is as shown in Figure 1.
Driving motor acts on driving vehicle operation by the deceleration torque of speed changer or retarder, and it is different that electric machine controller controls motor
Rotating speed and torque meet vehicle road horsepower demand.Due to using single motor drive, motor should have wider speed adjustable range,
Low speed can be exported with large torque and high speed has certain margin of power, high efficiency and high reliability.Obviously, such high rotating speed
Motor manufacturing difficulty is too big, and motor can not under various operating modes can efficiency operation cause whole efficiency relatively low, and
And it is difficult to take into account the accelerating ability of vehicle and max. speed.For this purpose, the dynamic coupling system based on bi-motor be designed to it is another
Kind solution.
In prior art, Chinese patent CN101633305, which discloses a kind of bi-motor and passes through spline drived, realizes series connection
The power assembly system of structural formula controls 1 slowspeed machine and 1 high-speed electric expreess locomotive in difference respectively by 2 sets of electric machine controllers
It operates under speed operating mode, is operated to ensure that 2 motors are in high efficient area as possible；It is corresponding, patent
CN203739605U discloses a kind of parallel drive system of bi-motor, and every motor passes through fixed shaft type gear drive respectively
Output shaft is transferred power to, high-speed electric expreess locomotive and slowspeed machine is made to be operated under different speed operating modes to ensure that dynamical system is efficient
Operating；CN102490599 equally uses parallel way, the difference is that its design concept is to realize bi-motor using fixed shaft gear train
Torque coupling improves the grade climbing performance and accelerating ability of automobile；Patent ACN104015600 equally uses parallel way, but
Its design concept is each speed regulation using bi-motor to realize a kind of drive system of stepless shift function；Patent
CN201110257806 discloses a kind of bi-motor pure electric vehicle method for controlling integrated transmission system, is provided using bi-motor different
Power, and carry out comprehensive output by power coupler, wherein power coupler is by having the gear there are four different drive ratios
Liang Tao fluid drives executing agency AMT composition, by carrying out overall-in-one control schema to motor and automatic mechanical transmission (AMT)
To realize shift；CN104691319 realizes motor rotating speed coupling to reach 2 motors as far as possible using a set of planet arrangement mechanism
The purpose of high-efficiency operation.
Series connection is respectively adopted in patent CN101633305 and CN203739605U and paralleling model realizes high-speed electric expreess locomotive and low speed
Motor switches operating under different speeds, to improve dynamical system efficiency.However, there was only 1 when vehicle is run in 2 kinds of schemes
Platform motor participates in work, this requires 2 motors be provided with relatively high power to meet vehicle under different speeds and have it is good
Accelerating ability.
Patent CN102490599 realizes bi-motor torque coupling to improve the grade climbing performance of automobile and add using fixed shaft gear train
Fast performance, but cause speed governing that must synchronize progress since 2 motor speeds are proportional, it otherwise easily leads to cycle in power flow and drops
Low motivation package system effectiveness；And under high-speed mode, which, which cannot achieve rotating speed decoupling, causes efficiency drastically to decline.
Patent CN201110257806 uses bi-motor and double-mechanical formula automatic transmission (AMT) practical power coupling, so
And this structure is excessively complicated, and since to lead to that there are shift times long, shift shock is apparent, even meeting sometimes for control complexity
There is the problem of vehicle does not change gear in the process of moving.
Patent CN104691319 realizes that motor rotating speed coupling realizes that 2 motors are respectively high using a set of planet arrangement mechanism
Imitate the purpose of operating.But due to being not carried out torque coupling, 2 motor output torques can not couple that a whole set of system can not be improved
The accelerating ability and grade climbing performance of system.
CN103754099A discloses a kind of bi-motor multi-mode power coupling drive assembly, this multi-mode refers to turning
Speed coupling, low speed realize that single motor driving, the braking of single motor Brake energy recovery, motor rotating speed coupling driving, bi-motor turn
The multiple-working modes such as speed coupling Brake energy recovery, its essence still can only realize that rotating speed couples a kind of side on power coupling
Formula.In structure, planetary gear train cannot achieve the in the same direction same of three elements (gear ring, planet carrier, sun gear) due to lacking clutch
Rotating speed mass motion, so cannot achieve torque coupling at all.In addition, by there is setting lock device to brake the sun at sun gear
Wheel, to realize that pattern is operated alone in the motor being connect with gear ring, but due to lacking brake at gear ring to cannot achieve
The single motor of another motor drives.Once this also allows for the failure of the motor at gear ring, whole system is just paralysed, therefore
Barrier reply property is weaker.
To sum up to analyze, the prior art can not realize the coupling of the rotating speed between bi-motor and torque coupling function simultaneously, this
Or necessarily causing vehicle to improve dynamic property using torque coupling but sacrifices whole efficiency；It is realized and is turned using rotating speed coupling
Speed decoupling, which meets single motor high efficiency, but reduces power performance；Slowspeed machine and high-speed electric expreess locomotive is directly used to distinguish
Different speed operating modes are operated in, must all select heavy-duty motor to meet dynamic property need although improving the service efficiency of single motor
It asks.
Invention content
The technical problem to be solved in the present invention provides a kind of electric vehicle multi-mode dynamical system, existing double for solving
The problem of power performance can not be taken into account with whole efficiency in motor power system.
The invention is realized in this way：
A kind of electric vehicle multi-mode dynamical system, including controller, main drive motor, stand-by motor, planetary gear train, first
Clutch and second clutch；
The sun gear of the main shaft for driving motor and planetary gear train connects, and the planet carrier of planetary gear train is power output end, the
The active part of one clutch is connected to the gear ring of planetary gear train, and the secondary part of first clutch is connected to planetary gear train too
Sun wheel；
The shaft of stand-by motor is connected to the gear ring of planetary gear train, and second clutch is one-way clutch, one-way clutch
Outer ring fix, the inner ring of one-way clutch is connected to stand-by motor shaft, and shaft is provided in the shaft of the stand-by motor
Brake；
The controller respectively with main drive motor, stand-by motor, shaft brake, first clutch and second clutch
Connection, controller are configured as the double electricity of output rotating speed control according to the load parameter and multi-mode dynamical system of electric vehicle
Power plants work in torque coupling pattern or rotating speed coupled mode；
When the multi-mode dynamical system is in the slow-speed of revolution, high load condition, controller control first clutch is in
Bonding state, second clutch are in off working state, and main drive motor and stand-by motor is made to work in torque coupling drive mode；
When the multi-mode dynamical system is in high-speed state, controller controls first clutch and is in separation shape
State, second clutch are in off working state, and main drive motor and stand-by motor is made to work in rotating speed coupled mode.
Further, the planet carrier of planetary gear train is connect by transmission shaft with two driving wheels, is arranged on the transmission shaft
There is candan universal joint, differential mechanism is provided between two driving wheels.
Further, first clutch is electromagnetic clutch.
Further, first clutch is multi-disc wet clutch.
Further, main drive motor and stand-by motor are equipped with electric machine controller, electric machine controller and power battery pack electricity
Connection.
In order to solve the above technical problems, another technical solution provided by the invention is：
A kind of electric vehicle multi-mode dynamical system, including controller, main drive motor, stand-by motor, planetary gear train, first
Clutch and second clutch；
The sun gear of the main shaft for driving motor and planetary gear train connects, and the planet carrier of planetary gear train is power output end, the
The active part of one clutch is connected to the gear ring of planetary gear train, and the secondary part of first clutch is connected to planetary gear train too
Sun wheel；
The shaft of stand-by motor is connected to the gear ring of planetary gear train, and second clutch is one-way clutch, one-way clutch
Outer ring fix, the inner ring of one-way clutch is connected to stand-by motor shaft, and rack gear brake is arranged on the gear ring；
The controller respectively with main drive motor, stand-by motor, gear ring brake, first clutch and second clutch
Connection, controller are configured as the double electricity of output rotating speed control according to the load parameter and multi-mode dynamical system of electric vehicle
Power plants work in torque coupling pattern or rotating speed coupled mode；
When the multi-mode dynamical system is in the slow-speed of revolution, high load condition, controller control first clutch is in
Bonding state, second clutch are in off working state, and main drive motor and stand-by motor is made to work in torque coupling drive mode；
When the multi-mode dynamical system is in high-speed state, controller controls first clutch and is in separation shape
State, second clutch are in off working state, and main drive motor and stand-by motor is made to work in rotating speed coupled mode.
The invention has the advantages that：Electric vehicle multi-mode dynamical system of the present invention is provided with main drive motor, auxiliary electricity
Machine and planetary gear train, the sun gear of planetary gear train is with gear ring by clutch control clutch, and stand-by motor is connect with gear ring, this hair
Bright electric vehicle multi-mode power system architecture is simple, it can be achieved that torque coupling and rotating speed coupling driving pattern, pattern switching are held
Easily, high efficiency while the dynamic property and economy of pure electric vehicle being taken into account, also, need to only control in reversing main drives motor with
Brake need not control 2 motor work, improve whole efficiency simultaneously.The electric vehicle multi-mode dynamical system is same
The field of electric drive such as engineering machinery, machine tool, light textile can be preferably applied to.
Description of the drawings
Fig. 1 is the power system architecture schematic diagram of conventional centralized driving formula pure electric vehicle in the prior art；
Fig. 2 is the structural schematic diagram of embodiment of the present invention electric vehicle multi-mode dynamical system；
Fig. 3 is the power match figure of embodiment of the present invention electric vehicle multi-mode dynamical system.
Label declaration：
1, stand-by motor；2, second clutch；3, first clutch；
4, main drive motor；5, planetary gear train；6, candan universal joint；7, differential mechanism；
8, driving wheel；9, stand-by motor controller；10, power battery pack；
11, drive motor controller；20, shaft brake.
Specific implementation mode
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is coordinated to be explained in detail.
Referring to Fig. 2, embodiment of the present invention electric vehicle multi-mode dynamical system includes stand-by motor 1, shaft braking
Device 20, controller (non-figure goes out in Fig. 2), first clutch 3, second clutch 2, main drive motor 4, planetary gear train 5, cross universal
Section 6, differential mechanism 7, driving wheel 8 and power battery pack 10, the stand-by motor 1 include stand-by motor controller 9, main drive motor packet
Include drive motor controller 11.The planetary gear train 5 includes sun gear, planetary gear, gear ring and the planet for being connected to each planetary gear
Frame, wherein the sun gear number of teeth is Zs, the number of teeth of gear ring is characteristic parameter that Zr, k=Zr/Zs are planetary gear train.
Stand-by motor 1 is connect with the gear ring of planetary gear train 5；Main drive motor is connect with the sun gear of planetary gear train 5；Planetary gear
It is that 5 planet carrier transfers power to driving wheel by universal joint and differential mechanism.The shaft phase of shaft brake 2 and stand-by motor
Adaptation, for braking stand-by motor rotation.The active part of first clutch 3 is connect with stand-by motor shaft (i.e. gear ring), from
Dynamic part is connected with driving motor shaft (i.e. sun gear), and second clutch is one-way clutch, and the outer ring of one-way clutch is solid
Fixed, the inner ring of one-way clutch is connected to stand-by motor shaft.Drive motor controller 11 and stand-by motor controller 9 respectively with
Power battery pack 10 is electrically connected.
The controller respectively with main drive motor, stand-by motor, shaft brake, first clutch and second clutch
Connection.
Controller is configured as the output rotating speed control of load parameter and multi-mode dynamical system according to electric vehicle
Double-motor power device works in torque coupling pattern or rotating speed coupled mode；
When the multi-mode dynamical system is in the slow-speed of revolution, high load condition, controller control first clutch is in
Bonding state, second clutch are in off working state, and main drive motor and stand-by motor is made to work in torque coupling drive mode；
When the multi-mode dynamical system is in high-speed state, controller controls first clutch and is in separation shape
State, second clutch are in off working state, and main drive motor and stand-by motor is made to work in rotating speed coupled mode.
Wherein, described " slow-speed of revolution, high load condition " refers to that the output rotating speed of power plant is less than preset slow-speed of revolution threshold
Value, and load and be more than preset high load threshold, " high-speed state " refers to that the output rotating speed of power plant is set in advance
If high rotary speed threshold value, the slow-speed of revolution threshold value be less than the high rotary speed threshold value.
By taking the more excellent embodiment of Electric Transit automobile as an example, the slow-speed of revolution threshold value is 2000 revs/min, high load threshold
Value is 400 Newton meters, and high rotary speed threshold value is 4500 revs/min.In the slow-speed of revolution threshold value, high load threshold and high rotary speed threshold value
Under, the multi-mode dynamical system can not only utilize the dynamic property of torque coupling raising Electric Transit automobile, while also in high speed
The whole efficiency of bi-motor has been given full play to when state by rotating speed coupling.
In practical application or other embodiment, the slow-speed of revolution threshold value, high load threshold and high rotary speed threshold value can roots
The load equipped according to the design parameter and power plant of main drive motor and stand-by motor is changed accordingly.
It is different in addition to being switched according to operating statuses such as the output rotating speed of multi-mode dynamical system and load parameters in the present invention
Operating mode, the control that may also be combined with power plant operates to switch different operating modes, and the control operation is including supporting
Gear, braking or electric switch increase and decrease.
By taking Electric Transit automobile as an example, when in lower-speed state, (output rotating speed is 2000 revs/min less than slow-speed of revolution threshold value to vehicle
It is 400 Newton meters that clock, load, which are more than high load threshold) when driving, hybrid power system is controlled at this time is in torque coupling pattern；When
High vehicle speeds state, when which reaches the speed corresponding to rated speed when being operated alone higher than main drive motor, control
Hybrid power system is in rotating speed coupled mode；And when vehicle is in middle band transport condition, (the output rotating speed of power plant is 2000
Rev/min~4000 revs/min, vehicle may be in rotating speed couple state at this time), switch hybrid power system at this time in torque coupling
Syntype.
According to its installation space and the actual conditions of torque are transmitted on dilly, in dynamical system shown in Fig. 2
First clutch should preferentially select electromagnetic clutch, be readily achieved assembling and control；In large and medium-sized vehicle such as bus etc., in order to
Ensure that first clutch service life and transmitting large torque demand, the first clutch in dynamical system shown in Fig. 2 should be selected preferentially
Multi-disc wet clutch.
Bi-motor torque coupling and rotating speed coupling driving pattern can be achieved at the same time in this electric vehicle multi-mode dynamical system, i.e.,
Bi-motor Two-mode Coupling dynamical system：Vehicle dynamic property is improved using torque coupling pattern in vehicle low speed or climbing；In vehicle
Rotating speed coupled mode is used when high speed, stand-by motor rotating speed is adjusted by dynamic, makes the main speed for driving motor and vehicle speed
Degree decoupling is to which stable operation is in high efficiency range.Wherein, torque coupling refers to that the torque of 2 motors output can be folded linearly
Add, formula T can be used3=AT1+B·T2, explanation：The T1Refer to the torque that motor 1 exports；T2Refer to what motor 2 exported
Torque；T3Refer to the torque of system output；A and B is proportionality coefficient, and the value of A and B is 1 inside this power plant, i.e. T3
=T1+T2.This is because when clutch 3 combines, planetary gear train is handled because each element rotating speed unanimously can be used as an element, 2
The torque of motor is directly superimposed.At this point, the torque superposition coupling that the driving torque of power plant output is 2 motors obtains later
's.Rotating speed coupling refers to that the rotating speed of 2 motors output can use formula n with linear superposition3=Cn1+D·n2Explanation：n1
Refer to the rotating speed that motor 1 exports；n2Refer to the rotating speed that motor 2 exports；n3Refer to the rotating speed of system output；C and D be than
Example coefficient.At this point, the rotating speed of power plant output can be coupled to obtain by the rotating speed linear superposition of 2 motors.Meanwhile rotating speed couples
N under pattern1Value be not by n3It is individually determined, rotating speed decoupling function thus may be implemented：Work as n3Value variation when, can
With by matching n2Value reach n1Value do not change, n3Value will not lead to n1It must change.)
This electric vehicle multi-mode dynamical system is at least operable with following five kinds of operating modes：
(1) pattern is operated alone in main drive motor：First clutch 3 is in discrete state at this time, one-way clutch is in work
Make state (i.e. second clutch is in bonding state).It (is carried out before corresponding vehicle when the main shaft for driving motor 4 rotates clockwise
Sail) when, since one-way clutch forces gear ring that cannot rotate counterclockwise, the retarder that acts as of planetary gear train (is driven at this time
Than for 1+k), i.e., the main power for driving motor is transmitted to planet carrier from sun gear and drives vehicle operation.The pattern is flat suitable for vehicle
Ground is started to walk and low cruise operational mode, and the main power for driving motor is sufficient for the power demand of vehicle.In addition, the pattern is applicable in
Ensure that vehicle still can travel when stand-by motor is out of order, improves safety and repair convenience.
(2) pattern is operated alone in stand-by motor：First clutch 3 is in bonding state at this time, one-way clutch is in non-
Working condition (i.e. separated position).Due to the combination of clutch 3, sun gear is made to link together with gear ring, the two it is in the same direction same
Rotating speed operation causes planet carrier to be seized on both sides by the arms to run with rotating speed in the same direction, and (transmission ratio is the transmission shaft that acts as of planetary gear train at this time
1).When the shaft of stand-by motor 1 rotates clockwise (corresponding vehicle, which advances, to travel), power is transmitted to planet carrier from sun gear
Drive vehicle operation.Ensure that vehicle still can travel, and improve safety and dimension when the pattern is out of order suitable for active motor
Repair convenience.
(3) bi-motor torque coupling drive mode：First clutch 3 is in bonding state at this time, one-way clutch is in
Off working state.Due to the combination of clutch 3, sun gear is made to link together with gear ring, the same rotating speed operation in the same direction of the two is led
It causes planet carrier to be seized on both sides by the arms to run with rotating speed in the same direction, planetary gear train acts as transmission shaft (transmission ratio 1) at this time.At this point, main
The stackable output of power of motor and stand-by motor is driven, under same rotating speed, the two realizes torque coupling.In addition, using torque
Coupling driving pattern can be adapted dynamically to using the rotary speed property mechanism of planetary gear train required by 2 motor and controllers
Rotating speed synchronisation requirement, this is other patents realizes that insurmountable speed dynamic fluctuation is asked when torque coupling using fixed shaft gear train
Topic.Under the pattern, the dynamic property of the torque superposition raising vehicle of bi-motor can be efficiently used, is suitable for vehicle climbing and adds with anxious
Fast operating mode.
(4) motor rotating speed coupling driving pattern：First clutch 3 is in discrete state at this time, one-way clutch is in
Off working state.Using the differential principle (i.e. system has double freedom) of planetary gear train, can be realized by the speed governing of stand-by motor
(i.e. the change of speed will not directly result in the main torque for driving motor and change for the decoupling of the main rotating speed for driving motor and vehicle operating speed
Become), so that main drive motor operation is improved vehicle power system operation efficiency in high efficient district.It is public according to the rotary speed property of planetary gear train
Formula：ns+knr-(1+k)nc=0 (wherein：nsFor sun wheel speed；nrFor gear ring rotating speed；ncFor planet carrier rotating speed；K is planetary gear
The characteristic parameter of system), when main high efficient district of the stabilization of speed in motor for driving motor, as long as carrying out dynamic speed adjustment to stand-by motor
(i.e. to gear ring speed governing) can match corresponding planet carrier rotating speed under different speeds.(i.e. when speed changes corresponding ncValue
It, can be by matching stand-by motor n when variationrValue reach main drive motor nsValue do not change, main drive motor n at this timesTake
Value is in the efficient rotating speed area of motor.) pattern be suitable for vehicle high speed cruise driving mode.
(5) Brake Energy take-back model：First clutch 3 is in bonding state at this time, one-way clutch is in inoperative shape
State.Due to the driven shaft that acts as of planetary gear train, vehicle is counter to drag 2 motors, 2 motors of drive system that can simultaneously participate in again
Raw braking, farthest recycles braking energy.The pattern is used in skidding pattern.
(6) reversing mode：After shaft brake 20 works, the shaft braking (i.e. gear ring is braked) of stand-by motor, planetary gear
System acts as retarder, and the main Reverse Power for driving motor is directly transmitted to planet carrier output from sun gear, due to sun gear
With rotating in same direction for planet carrier, vehicle realizes reversing operating mode.
The invention also discloses another embodiment,
A kind of electric vehicle multi-mode dynamical system, including controller, main drive motor, stand-by motor, planetary gear train, first
Clutch and second clutch；
The sun gear of the main shaft for driving motor and planetary gear train connects, and the planet carrier of planetary gear train is power output end, the
The active part of one clutch is connected to the gear ring of planetary gear train, and the secondary part of first clutch is connected to planetary gear train too
Sun wheel；
The shaft of stand-by motor is connected to the gear ring of planetary gear train, and second clutch is one-way clutch, one-way clutch
Outer ring fix, the inner ring of one-way clutch is connected to stand-by motor shaft, and rack gear brake is arranged on the gear ring；
The controller respectively with main drive motor, stand-by motor, gear ring brake, first clutch and second clutch
Connection, controller are configured as the double electricity of output rotating speed control according to the load parameter and multi-mode dynamical system of electric vehicle
Power plants work in torque coupling pattern or rotating speed coupled mode；
When the multi-mode dynamical system is in the slow-speed of revolution, high load condition, controller control first clutch is in
Bonding state, second clutch are in off working state, and main drive motor and stand-by motor is made to work in torque coupling drive mode；
When the multi-mode dynamical system is in high-speed state, controller controls first clutch and is in separation shape
State, second clutch are in off working state, and main drive motor and stand-by motor is made to work in rotating speed coupled mode.
The operation principle of the embodiment and the operation principle of the above embodiment are just the same, just no longer burdensome here.
It to sum up analyzes, patent of the present invention can realize that different operating modes meets the different driving cycle of vehicle.It ties below
The power match figure under vehicle difference driving cycle shown in Fig. 3 is closed to analyze and formulate the various control mode switchs of dynamical system
Strategy.
Relative to certain power plants using one-way clutch and the double clutch bi-motor of main clutch, the present invention adopts
The function that the one-way clutch is replaced with brake need to only control main drive motor and brake in reversing, need not be simultaneously
2 motors and two clutch work are controlled, whole efficiency is improved.
From figure 3, it can be seen that when vehicle low speed flat pavement running, dynamical system uses main drive motor list drive mode
Meet vehicle power demand, and there is certain stand-by power to meet accelerating ability；When vehicle low speed climbing when driving, due to resistance
Power general power Pr' is more than main drive motor external characteristics driving power Pe2', and dynamical system uses bi-motor torque couple drive mode
Vehicle power demand can be met；When vehicle high speed is cruised when driving, dynamical system uses rotating speed coupled mode, makes main drive motor
Rotating speed is in high efficiency region, and the rotating speed that stand-by motor is adjusted by dynamic matches Vehicle Speed, and the power of 2 motors is folded
Add and ensure that vehicle still there are enough stand-by powers to meet the power demand overtaken other vehicles under the operating modes such as acceleration under high speed speed.
It can from power match analysis of above bi-motor Two-mode Coupling dynamical system under various driving operating modes
It arrives, when various pattern switchings, as long as the combination or separation of 1 clutch of control and 2 motor different capacity matching outputs
It can complete.Therefore, the dynamical system designed by this patent can real-time switching that is easier, being reliably completed each operating mode,
Meet the power demand of each operating mode of vehicle.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent shapes or Structural Transformation made by bright specification and accompanying drawing content are applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (6)
1. a kind of electric vehicle multi-mode dynamical system, which is characterized in that including controller, main drive motor, stand-by motor, planet
Train, first clutch and second clutch；
The sun gear of the main shaft for driving motor and planetary gear train connects, and the planet carrier of planetary gear train is power output end, first from
The active part of clutch is connected to the gear ring of planetary gear train, and the secondary part of first clutch is connected to the sun of planetary gear train
Wheel；
The shaft of stand-by motor is connected to the gear ring of planetary gear train, and second clutch is one-way clutch, one-way clutch it is outer
Circle is fixed, and the inner ring of one-way clutch is connected to stand-by motor shaft, and shaft braking is provided in the shaft of the stand-by motor
Device；
The controller connects with main drive motor, stand-by motor, shaft brake, first clutch and second clutch respectively
It connects, controller is configured as controlling bi-motor according to the load parameter of electric vehicle and the output rotating speed of multi-mode dynamical system
Power plant works in torque coupling pattern or rotating speed coupled mode；
When the multi-mode dynamical system is in the slow-speed of revolution, high load condition, wherein slow-speed of revolution threshold value is 2000 revs/min,
High load threshold is 400 Newton meters, and first clutch is in bonding state, second clutch is in inoperative shape for controller control
State makes main drive motor and stand-by motor work in torque coupling drive mode；
When the multi-mode dynamical system is in high-speed state, wherein high rotary speed threshold value is 4500 revs/min, controller
First clutch is in discrete state, second clutch is in off working state for control, and main drive motor and stand-by motor is made to work
In rotating speed coupled mode；
The controller is different in addition to being switched according to operating statuses such as the output rotating speed of multi-mode dynamical system and load parameters
Operating mode switches different operating modes herein in connection with the control operation of power plant, and the control operation includes low gear, system
The increase and decrease of dynamic or electric switch.
2. electric vehicle multi-mode dynamical system according to claim 1, which is characterized in that the planet carrier of planetary gear train is logical
It crosses transmission shaft to connect with two driving wheels, candan universal joint is provided on the transmission shaft, difference is provided between two driving wheels
Fast device.
3. electric vehicle multi-mode dynamical system according to claim 1, which is characterized in that first clutch be electromagnetism from
Clutch.
4. electric vehicle multi-mode dynamical system according to claim 1, which is characterized in that first clutch is that wet type is more
Slice clutch.
5. electric vehicle multi-mode dynamical system according to claim 1, which is characterized in that main drive motor and stand-by motor
It is equipped with electric machine controller, electric machine controller is electrically connected with power battery pack.
6. a kind of electric vehicle multi-mode dynamical system, which is characterized in that including controller, main drive motor, stand-by motor, planet
Train, first clutch and second clutch；
The sun gear of the main shaft for driving motor and planetary gear train connects, and the planet carrier of planetary gear train is power output end, first from
The active part of clutch is connected to the gear ring of planetary gear train, and the secondary part of first clutch is connected to the sun of planetary gear train
Wheel；
The shaft of stand-by motor is connected to the gear ring of planetary gear train, and second clutch is one-way clutch, one-way clutch it is outer
Circle is fixed, and the inner ring of one-way clutch is connected to stand-by motor shaft, and rack gear brake is arranged on the gear ring；
The controller connects with main drive motor, stand-by motor, gear ring brake, first clutch and second clutch respectively
It connects, controller is configured as controlling bi-motor according to the load parameter of electric vehicle and the output rotating speed of multi-mode dynamical system
Power plant works in torque coupling pattern or rotating speed coupled mode；
When the multi-mode dynamical system is in the slow-speed of revolution, high load condition, wherein slow-speed of revolution threshold value is 2000 revs/min,
High load threshold is 400 Newton meters, and first clutch is in bonding state, second clutch is in inoperative shape for controller control
State makes main drive motor and stand-by motor work in torque coupling drive mode；
When the multi-mode dynamical system is in high-speed state, wherein high rotary speed threshold value is 4500 revs/min, controller
First clutch is in discrete state, second clutch is in off working state for control, and main drive motor and stand-by motor is made to work
In rotating speed coupled mode；
The controller is different in addition to being switched according to operating statuses such as the output rotating speed of multi-mode dynamical system and load parameters
Operating mode switches different operating modes herein in connection with the control operation of power plant, and the control operation includes low gear, system
The increase and decrease of dynamic or electric switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573696.1A CN105034782B (en) | 2015-09-10 | 2015-09-10 | A kind of electric vehicle multi-mode dynamical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510573696.1A CN105034782B (en) | 2015-09-10 | 2015-09-10 | A kind of electric vehicle multi-mode dynamical system |
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| CN107719183A (en) * | 2016-08-10 | 2018-02-23 | 深圳市沃特玛电池有限公司 | A kind of pure electric automobile power assembly and its control method |
| CN106515407A (en) * | 2016-11-16 | 2017-03-22 | 陕西理工学院 | Electric vehicle drive axle driven by two motors for speed regulation |
| CN106427533A (en) * | 2016-11-16 | 2017-02-22 | 陕西理工学院 | Electric vehicle driving axle and driving and speed-regulating method thereof |
| CN106740021A (en) * | 2016-11-16 | 2017-05-31 | 陕西理工学院 | A kind of electric motor car driving bridge of dual-motor combination |
| CN108327496B (en) * | 2017-01-19 | 2023-08-18 | 宇通客车股份有限公司 | Dual-motor pure electric driving system and electric automobile using same |
| CN107082017A (en) * | 2017-05-16 | 2017-08-22 | 福建万润新能源科技有限公司 | A kind of single motor hybrid drive system based on power coupler |
| KR20200041369A (en) | 2017-08-24 | 2020-04-21 | 지잉 자오 | Method for transmission device, device including electric vehicle, and driving device |
| CN109515146A (en) * | 2017-09-18 | 2019-03-26 | 郑州宇通客车股份有限公司 | A kind of pure electric coach and its dynamical system |
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| CN108312896B (en) * | 2018-02-23 | 2024-03-22 | 北京理工大学 | Dual-motor self-adaptive pre-speed-regulation multi-gear power coupling device and control method thereof |
| CN108638849A (en) * | 2018-06-29 | 2018-10-12 | 北汽福田汽车股份有限公司 | The drive system of vehicle and vehicle with it |
| CN108790774B (en) * | 2018-07-12 | 2024-06-04 | 杭州休伦科技有限公司 | Multi-mode hybrid power system based on single planetary gear set and control method thereof |
| CN109050230B (en) * | 2018-08-28 | 2019-02-05 | 大连理工江苏研究院有限公司 | Farad capacitor cell electric bus system |
| CN113858436B (en) * | 2021-08-31 | 2023-03-14 | 深圳硅山技术有限公司 | Control method and system of concrete mixer truck and concrete mixer truck |
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| CN103754099A (en) * | 2014-01-13 | 2014-04-30 | 北京理工大学 | Double-motor multi-mode dynamic coupling driving assembly |
| CN203864412U (en) * | 2014-06-06 | 2014-10-08 | 中国汽车技术研究中心 | Dual-motor single-planet-row pure motor automobile driving device |
| CN204845500U (en) * | 2015-09-01 | 2015-12-09 | 福建万润新能源科技有限公司 | Electric automobile multi -mode power control system |
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