CN206217612U - A kind of optimization integrated system of motor and automatic transmission - Google Patents
A kind of optimization integrated system of motor and automatic transmission Download PDFInfo
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- CN206217612U CN206217612U CN201620658947.6U CN201620658947U CN206217612U CN 206217612 U CN206217612 U CN 206217612U CN 201620658947 U CN201620658947 U CN 201620658947U CN 206217612 U CN206217612 U CN 206217612U
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Abstract
The utility model provides the optimization integrated system of a kind of motor and automatic transmission, including motor, input shaft, torsion vibration absorber, automatic transmission, power transmission shaft, main reducing gear and integrated control unit；With one end of torsion vibration absorber by spline connection, the other end of the torsion vibration absorber passes through spline connection to the output shaft of the motor with the input shaft of automatic transmission；The output shaft of the automatic transmission is connected by universal joint with one end of power transmission shaft, and the other end of the power transmission shaft is connected by universal joint with main reducing gear；The utility model motor is directly connected by torsion vibration absorber with automatic gear-box, is alleviated the impact produced in shift process and is brought damage to motor axle, while reducing because of the gearshift mortality that shift shock brings.The utility model shortens shift time, eliminates power electuary and the not smooth phenomenon of gearshift, reduces the abrasion of equipment, improves electric powered motor, economy and ride comfort.
Description
Technical field
The utility model belongs to Mobile Power Transmission research field, and in particular to the optimization of motor and automatic transmission
Integrated system.
Background technology
Current country's electric vehicle powertrain system is more by the way of motor direct drive, and much listing is pure electronic
Bus employs the direct driving motor of high-power big torque.Although reduced using this type of drive and dynamical system matching is set
The difficulty of meter, but the input for motor is but greatly improved, there is volume in the motor of this applications
Greatly, weight is heavy, utilization ratio is low, the low a variety of drawbacks of drive control device available capacity utilization rate, wastes the energy and has a strong impact on
The popularization and application of electric vehicle.Furthermore existing driving system for electric vehicles analysis and application show, in configuration AMT transmission systems
Electric automobile on, if continued using with using the similar schedule of engine-driven vehicle, drive system is typically deposited
In the bad phenomenon that gearshift has some setbacks, synchronizer rapid wear, dynamic impact are larger.
From the point of view of the direction of international research and development, limit by vehicle space and use environment is constrained, automotive needs motor drive
Dynamic system has performance higher, and volume weight specific density is higher, bearable environment temperature scope (coolant inlet temperature higher>105
DEG C), vibration and the cost for being amenable to high intensity are more low.It is the requirement of strict or even harshness more than meeting, automobile motor drives
The development trend of dynamic systems technology can be summarized as permanent magnetism, digitize and integrated.
Permagnetic synchronous motor PMSM plus mechanical automatic gearbox AMT compositions are employed in pure electric coach transmission system
Allinone Driving System, not only reduces the labour intensity of driver, while optimizing drive system power utilization efficiency so that dynamic
Force system matching is more reasonable, particularly high speed, and climbing property is improved, so that vehicle efficiency utilization rate is improved, accelerates
Time shortens.Using PMSM+AMT integration type of drive compared with using traditional direct drive mode, drive system for
The situation of motor overall efficiency utilization rate, is configured with the structure of Allinone Driving System, for the drive characteristic of electric system
Form the advantage of continuous high-efficient area application.
Although Induction Motor System also has more application, driving system of permanent magnet motor on new energy vehicle at home
Ratio it is very high, from the point of view of calendar year statistics data, the proportion of Induction Motor-Driven system have decreased to 25% from 59%, and
The ratio of magneto be from 37% steady-state growth of 2011 by 2013 74% (PMSM drive systems are even more from 11%
Rise to 49%), its growth trend is obvious.Abroad in drive system of electric automobile, driving system of permanent magnet motor occupies definitely
Advantage, ratio is up to and reaches 87%.As can be seen here, driving system of permanent magnet motor is the main of electric automobile motor drive system
Development becomes.
The universe efficiency optimization and dynamic response of PMSM drive systems are the key issues for influenceing Development of Electric Vehicles, are mesh
The hot fields of preceding foreign study, magneto has the advantages that efficiency high, specific power are big, using the frequency control of vector controlled
System, can make it have the speed adjustable range of broadness.In recent years, all big enterprises on PMSM driving system structures except being goed deep into
Outside research, it has been also carried out for the control research of PMSM drive systems used for electric vehicle widely studied.But PMSM+AMT is ground
Study carefully almost blank.
Demand at present both at home and abroad for PMSM+AMT integrated motor-driven systems is very big, but independently knows due to lacking
Know the key technology of property right, the PMSM+AMT overall-in-one control schema technologies of efficient high dynamic response have become Development of EV
Bottleneck.
Because PMSM drive systems possess low speed permanent torque, the characteristic of high speed invariable power, and motor torque and power are bent
Line is parabolic with the change of rotating speed, so match somebody with somebody with AMT in PMSM drive systems closing, it is necessary to further study motor
Drive system and the schedule and process for gear of AMT speed changers, play PMSM advantages, shorten shift time, eliminate power punching
Hit and shift gears not smooth phenomenon, reduce synchronizer abrasion condition.
Utility model content
It is integrated with the optimization of automatic transmission that the purpose of this utility model is directed to a kind of above mentioned problem motor of offer
System.
The technical solution of the utility model is：A kind of optimization integrated system of motor and automatic transmission, including drive
Dynamic motor, input shaft, torsion vibration absorber, automatic transmission, power transmission shaft, main reducing gear and integrated control unit；
The output shaft of the motor and one end of torsion vibration absorber by spline connection, the torsion vibration absorber it is another
One end passes through spline connection with the input shaft of automatic transmission；The output shaft of the automatic transmission passes through universal joint and power transmission shaft
One end connection, the other end of the power transmission shaft is connected by universal joint with main reducing gear；
The integrated control unit includes entire car controller VCU, integrated dynamic control system IDCU, motor control
Device MCU and gearbox controller TCU；
The entire car controller VCU judges the driving performance of vehicle for the energy elements and vehicle-state of comprehensive vehicle,
Entire car controller VCU is electrically connected with accelerator pedal, brake pedal, automobile gears and power-supply system respectively, and vehicle is travelled into shape
State, speed, target requirement driving force, brake force and guard mode information, are broadcasted by CAN or directive sending is to one
Change power control system IDCU；
The integrated dynamic control system IDCU respectively with entire car controller VCU, drive motor controller MCU and speed change
Device controller TCU is electrically connected, and entire car controller VCU, gearbox controller TCU and drive motor controller are come from for comprehensive
The information of MCU, and work to drive motor controller MCU and gearbox controller TCU coordinates control；
The drive motor controller MCU is electrically connected with motor, the work for controlling motor；
The gearbox controller TCU is electrically connected with automatic transmission, the work for controlling automatic transmission.
In such scheme, the automatic transmission include input shaft, output shaft, the first power shift gear, the second power shift gear,
3rd power shift gear, one grade of engaging sleeve, two third gear engaging sleeves, a shelves gear jackshaft, intermediate gear jackshaft and third gear
Jackshaft；
3rd power shift gear is fixedly connected with input shaft, first power shift gear, the second power shift gear and the 3rd
Power shift gear is enclosed within the output shaft by bearing fit；Nibbled with a shelves gear jackshaft lower section of first power shift gear
Close, the shelves gear jackshaft, intermediate gear jackshaft, third gear jackshaft are fixedly and coaxially connected, second gearshift
Gear is engaged with intermediate gear jackshaft, and the 3rd power shift gear is engaged with third gear jackshaft；
One grade of engaging sleeve is arranged between first power shift gear and the second power shift gear, and one grade of engaging sleeve passes through
Spline is connected with output shaft prismatic pair, the two third gear engaging sleeve be arranged on second power shift gear and the 3rd power shift gear it
Between, two third gear engaging sleeves are connected by spline with output shaft prismatic pair.
In such scheme, the motor is permagnetic synchronous motor.
The beneficial effects of the utility model are：Compared with prior art, the utility model motor is by reversing damping
Device reduces driving motor output shaft being directly connected to self-changing gearbox input shaft, buffering directly with automatic gear-box connection
The error produced in production process or assembling process, it is to avoid allow motor rotating shaft to be produced with self-changing gearbox input shaft straight
Connect hardness link, so as to protect motor axle with self-changing gearbox input shaft, alleviate motor rotating shaft with it is automatic
The coaxiality error that transmission input shaft assembling process is produced, the reason for cause automatic gear-box noise big, while alleviate changing
The impact produced during gear brings damage to motor axle, while reducing because of the gearshift mortality that shift shock brings.This
Utility model uses integrated design, coordinates permagnetic synchronous motor precise rotation method for controlling torque and advanced vehicle control
System strategy, realizes domestic PMSM+AMT integrations type of drive the most advanced, and compared with prior art, the utility model is high
Effect high dynamic response, shortens shift time, eliminates power electuary and the not smooth phenomenon of gearshift, reduces the abrasion of equipment, improves
Electric powered motor, economy and ride comfort.
Brief description of the drawings
Fig. 1 shows for motor described in the implementation method of the utility model one with the optimization integrated system structure of automatic transmission
It is intended to；
Fig. 2 is the optimization integrated system entirety frame of motor described in the implementation method of the utility model one and automatic transmission
Frame schematic diagram；
Fig. 3 plucks gear pattern control framework schematic diagram for no-load described in the implementation method of the utility model one；
Fig. 4 is actively to follow synchronous mode control framework schematic diagram described in the implementation method of the utility model one；
Fig. 5 puts into gear Schema control block schematic illustration for no-load described in the implementation method of the utility model one；
Fig. 6 is that driving force described in the implementation method of the utility model one recovers loading mode control framework schematic diagram；
Each shelves acceleration --- speed curves under a hundred per cent throttle that Fig. 7 draws out for an embodiment of the present invention
Figure；
Fig. 8 is the corresponding speed relation of different gears under the electric efficiency characteristic and same rotational speed of an embodiment of the present invention
Figure.
In figure：1st, motor；2nd, motor output shaft；3rd, torsion vibration absorber；4th, automatic transmission；5th, power transmission shaft；6；It is main
Decelerator；7th, wheel；8th, input shaft；9th, output shaft；10th, the first power shift gear；11st, the second power shift gear；12nd, the 3rd gearshift tooth
Wheel；13rd, one grade of engaging sleeve；14th, two third gear engaging sleeve；15th, a shelves gear jackshaft；16th, intermediate gear jackshaft；17th, third gear
Gear jackshaft.
Specific embodiment
In order to the technical characteristic to utility model, purpose and effect are more clearly understood from, now control illustrates this
The specific embodiment of utility model, in the various figures identical label represent same or analogous part.Accompanying drawing is merely to illustrate
The utility model, practical structures of the present utility model and actual proportions are not represented.
Fig. 1 show a kind of embodiment party of motor described in the utility model and the optimization integrated system of automatic transmission
Formula, the optimization integrated system of the motor and automatic transmission, including motor 1, input shaft 2, torsion vibration absorber 3,
Automatic transmission 4, power transmission shaft 5, main reducing gear 6 and integrated control unit.
With one end of torsion vibration absorber 3 by spline connection, the torsion subtracts the motor output shaft 2 of the motor 1
The input shaft 8 of the other end and automatic transmission 4 that shake device 3 passes through spline connection；The output shaft 9 of the automatic transmission 4 passes through
Universal joint is connected with one end of power transmission shaft 5, and the other end of the power transmission shaft 5 is connected by universal joint with main reducing gear 6, automatic to become
The rotating speed of fast device 4 transmits power to main reducing gear 6 by power transmission shaft 5, and be assigned to for power on two wheels 7 by main reducing gear 6.
In the present embodiment, the automatic transmission 4 is third gear case, and the automatic transmission 4 includes input shaft 8, output shaft
9th, the first power shift gear 10, the second power shift gear 11,12, one grade of engaging sleeve 13 of the 3rd power shift gear, two third gear engaging sleeves 14,
Shelves gear jackshaft 15, intermediate gear jackshaft 16 and third gear jackshaft 17.
3rd power shift gear 12 is fixedly connected with input shaft 8, first power shift gear 10, the second power shift gear 11
It is enclosed within the output shaft 9 by bearing fit with the 3rd power shift gear 12；The lower section of first power shift gear 10 with one grade
Gear jackshaft 15 is engaged, and the shelves gear jackshaft 15, intermediate gear jackshaft 16, third gear jackshaft 17 are coaxially solid
Fixed connection, second power shift gear 11 is engaged with intermediate gear jackshaft 16, the 3rd power shift gear 12 and third gear
Jackshaft 17 is engaged.One grade of engaging sleeve 13 is arranged between the power shift gear 11 of first power shift gear 10 and second, and one
Shelves engaging sleeve 13 is connected by spline with the prismatic pair of output shaft 9, and the two third gear engaging sleeve 14 is arranged on the described second gearshift tooth
Between the power shift gear 12 of wheel 11 and the 3rd, two third gear engaging sleeves 14 are connected by spline with the prismatic pair of output shaft 9.
The utility model motor 1 is directly connected by torsion vibration absorber 3 with automatic gear-box 4, reduces motor 1
Output shaft is directly connected to the input shaft of automatic gear-box 4, has buffered the error produced in production process or assembling process, keeps away
Exempt to allow motor rotating shaft to produce directly hardness to link with the input shaft of automatic gear-box 4, so as to protect motor axle
With the input shaft of automatic gear-box 4, the axiality that motor rotating shaft is produced with self-changing gearbox input shaft assembling process is alleviated
Error, the reason for cause automatic gear-box noise big, while the impact produced in alleviating shift process is to motor axle band
To damage, while reducing because of the gearshift mortality that shift shock brings.
Fig. 2 show the optimization integrated system general frame schematic diagram of the motor and automatic transmission, the collection
Include entire car controller VCU, integrated dynamic control system IDCU, drive motor controller MCU and speed changer into control unit
Controller TCU.The entire car controller VCU judges the travelling of vehicle for the energy elements and vehicle-state of comprehensive vehicle
Can, entire car controller VCU is electrically connected with accelerator pedal, brake pedal, automobile gears and power-supply system respectively, including power-supply system
The energy that can supply and vehicle running state is advanced, retreat or parking, speed, target requirement driving force, brake force and
Guard mode etc., is broadcasted by CAN or directive sending gives integrated dynamic control system IDCU.The integrated dynamic
Control system IDCU is electrically connected with entire car controller VCU, drive motor controller MCU and gearbox controller TCU respectively, is used for
The comprehensive information from entire car controller VCU, gearbox controller TCU and drive motor controller MCU, and to motor control
The work of device MCU processed and gearbox controller TCU coordinates control.The drive motor controller MCU and the electricity of motor 1
Connection, the direction according to setting, speed, angle and response time for controlling motor 1 are operated.The speed changer
Controller TCU is electrically connected with automatic transmission 4, the work for controlling automatic transmission 4.
T in Fig. 2fIt is the driving force or brake force of the PMSM determined by accelerator pedal or brake pedal by VCU；
It is the active synchronization rotating speed of target of MCU system；It is the rotating speed of target under the control of PMSM rotating speeds；It is motor torque control
Target torque under system；Be unloading target torque andIt is loaded targets torque；It is given by PMSM rotational speed regulations
Target torque；neIt is current PMSM rotating speeds；TeIt is current PMSM torques；MeIt is other job informations of PMSM, includes PMSM systems
The information such as operating temperature, the malfunction of system；MT and AT respectively specify that the work of positive mechanical formula and the self shifter Working mould of AMT
Formula；igIt is current shift；It is target gear；ifIt is by the revised final goal gears of IDCU；It is to be determined by AMT system
Determine motor working condition order.
The shift control method of the optimization integrated system of the motor and automatic transmission, including pluck gear preparation mould
Formula, no-load pluck gear pattern, actively follow put into gear pattern and driving force of synchronous mode, no-load to recover loading mode.It is described to pluck
The process for keeping off ready mode is mainly by the realization of integrated dynamic control system IDCU systems；When prepare gearshift end-of-job it
Afterwards, integrated system carries out the no-load and plucks gear pattern, and the action that the no-load plucks gear pattern is in integrated dynamic control
Under system identifier CU and entire car controller VCU coordinative commands, specifically held by drive motor controller MCU and gearbox controller TCU
OK；Plucking after gear process is completed carries out actively following synchronous mode, described actively to follow synchronous mode to enter motor PMSM
Row rotating speed of target is adjusted so that the meshing gear rotating speed of new gear shift position can as early as possible reach synchronous regime；The no-load is put into gear
Pattern be used for the inertia mode instruction of output motor zero and motor target torque, gear shifting actuating mechanism put into gear pattern gating command and；
Enter the driving force after being completed when putting into gear and recover loading mode, the driving force recovers loading mode to be turned by PMSM
The control of square is completed.
From figure 2 it can be seen that for different work requirements, the work of subsystems is different, it is necessary to according to
Specific mode of operation is bound to dynamical system, the especially mode of operation of PMSM systems, and PMSM- can be just better achieved
The comprehensive function of AMT system.
The gear ready mode of plucking is specially：
Because the State- output of MCU is influenceed by different control units, in general its working condition is by VCU controls
, but because AMT to be coordinated is acted in shift process, its working condition is necessarily depended upon again in these courses of work
AMT system, if PMSM directly responds the instruction of the two systems, certainly will carry out the multi-party of logic in PMSM control strategies
Judge, thus increased herein an integrated dynamic control system IDCU come integrated management coordination so that MCU directly in response to
The instruction of IDCU.Because during gear is plucked, the torque of motor will decline according to the torque curve of setting, so that can not
Cause vehicle drive force with avoiding less than resistance so that car speed declines, if so pluck the gear time continue it is long, it will
Cause the serious reduction of car speed, so as to influence the driving performance of vehicle.Therefore before the driver for vehicle for needing plucks gear
Carry out plucking the process that gear prepares, the process for plucking gear ready mode is mainly by integrated dynamic control system IDCU realities
Existing, integrated dynamic control system IDCU inputs are driver pedal signal, hand-wheel signal, the speed of entire car controller VCU
Signal and SOC signals etc., the gearshift ready signal of gearbox controller TCU, current shift signal, target gear signal and gearshift
Operator signals, the motor speed signal and motor temperature signal of drive motor controller MCU, by the remittance of these information
Always, to enter row information preset for integrated dynamic control system IDCU and entire car controller VCU, for gearshift provides condition for validity preparation,
While the no-load torque instruction value that integrated dynamic control system IDCU is driven electric machine controller MCU is calculated and deposited
Storage, by gearbox controller TCU pluck gear order carry out it is preset.
The no-load is plucked gear pattern and is specially：
As shown in figure 3, integrated dynamic control system IDCU will pluck gear information while being sent to entire car controller VCU, make
Entire car controller VCU knows current drive pattern to pluck gear pattern, and drive motor controller MCU will be dynamic directly in response to integration
The regulating command of Force control system IDCU；The drive motor controller MCU that integrated dynamic control system IDCU will be calculated in advance
No-load target torque is sent to drive motor controller MCU so that drive motor controller MCU is immediately to zero inertia torque mesh
Mark is approached；Gear shifting actuating mechanism is plucked gear pattern instruction prepositioned instruction and is sent to speed changer control by integrated dynamic control system IDCU
Device TCU processed, waits the motor inertia simulation torque of drive motor controller MCU to be adjusted in place.
Drive motor controller MCU system receive integrated dynamic control system IDCU transmission unloading torque instruction it
Afterwards, the adjustment of torque is carried out according to predetermined control algolithm.Especially be specifically contemplated that the actual rotary inertias of PMSM will send by
It is huge to small saltus step, how to maintain the stabilization of control algolithm, it is ensured that output inertia simulation balancing moment disclosure satisfy that
The moment of inertia that balance motor rotor declines with speed, and can be according to corresponding speed, motor speed and current shift
Real-time adjustment is carried out as adjusting parameter, just to be can ensure that and reach no load state between speed changer meshing gear such that it is able to be real
Now smoothly pluck the key that gear is this pattern.If MCU controlled output torques simply are set into zero, then PMSM is in vehicle inertia
Because the inertia of itself can produce the torque in direction to be applied on meshing gear under the drive of operation, so as to come numb to pluck flap
It is tired, so must set inertia torque according to the corresponding inertia of the travel speed of vehicle and motor to eliminate inertia torque
Influence；But if the balancing moment for setting is excessive, will also result in the excessive problem of the contact force of meshing gear acting surface so that
Vehicle is still within driving condition, not only results in and plucks gear difficulty, and the scuffing of gear field of conjugate is likely to result in when serious.Therefore
Suitable PMSM balancing moments are selected, can just be allowed to carry out and be substantially at no load state when plucking gear between meshing gear.Make
System meets these performance requirements, it is important to ensure the quick of motor torque response, stabilization and the performance such as accurate.Simultaneously
During gear is plucked, with the output torque of indexing servo motor as feedback quantity, further optimization balance turns for the output of balancing moment
The numerical value of square, to ensure the stressless generation of gear.
It is described actively to follow synchronous mode to be specially：
As shown in figure 4, after plucking the completion of gear process, PMSM output torques no longer act on electric vehicle, and vehicle will be at it
Moved under effect of inertia, in order to reply vehicle drive force as early as possible, reduce shift shock, enhancing vehicle ride performance, it is necessary to MCU
System is combined with AMT system as early as possible, it is therefore necessary to carry out rotating speed of target regulation to PMSM immediately so that the engaging tooth of new gear shift position
Wheel speed can as early as possible reach synchronous regime.In order to comparatively fast realize the synchronous operation of power shift gear, it is necessary to by motor
Control mode be adjusted to speed closed loop control, with shift gears rotating speed of target for adjustment aim parameter enter Mobile state adjust, in rotating speed
Accurate adjustment is carried out to transmission input shaft rotating speed under conditions of closed loop, has both ensured that synchronous rotational speed error is small, mitigate synchronizer
Abrasion, shortening is put into gear the time, and torque can balance each other with no-load torque when ensureing to put into gear again, will not produce shock problem.In order to
Overshoot is small and the small requirement of error, it is necessary to rotating speed response meets to realize such target, and to consider that vehicle environment and gearshift are dynamic
The influence of state process；Switching between close-loop control mode simultaneously needs to meet the requirement of stability and dynamic property.
The gearshift speed ratio of next step is obtained from gearbox controller TCU first, is driven so as to provide drive motor controller MCU
The rotating speed of target of dynamic motor PMSM, the speed and speed now that integrated dynamic control system IDCU passes through previous step calculates car
Transport condition, the rotating speed of target calculated according to gearbox controller TCU, target gear combination motor PMSM systems are moved
Power output characteristics is modified to target gear and obtains final gear output, so that the target for correcting motor PMSM turns
Speed, and the rotating speed of target that final gear is sent to gearbox controller TCU, PMSM is sent to drive motor controller MCU,
Drive motor controller MCU is entered with the rotating speed of target that gearbox controller TCU gives having been shifted to rotating speed control before this
Row adjustment, after obtaining the rotating speed of target of integrated dynamic control system IDCU, be further modified with reference to speed feedback from
And it is rapidly reached preferable synchronous rotational speed condition.The torque mode of operation for actively following synchronous mode requirement MCU is to rotating speed
Working mode change will be smoothed rapidly, and rotational speed regulation response is fast and static error is small, and can in real time according to the variation of speed
And be controlled.
The no-load pattern of putting into gear is specially：
As shown in figure 5, no-load is put into gear, pattern plucks that gear pattern is similar with the no-load, and no-load is put into gear the input of pattern
It is current shift, temperature sensor signal, motor speed sensor signal, gear shifting actuating mechanism position signalling, is output as motor
Zero inertia mode instruction and motor target torque, gear shifting actuating mechanism put into gear pattern gating command and.When integrated dynamic control
When the tachometer value regulation error that system identifier CU detects PMSM reaches preset range, the preset no-load according to back is put down first
Weighing apparatus torque carries out torque adjustment to PMSM, and triggers pattern switching command, makes motor by speed closed loop pattern switching to zero
Inertia torque closed loop control mode；Motor is received after instruction, is switched to torque closed loop mode control model, it is desirable to cut
System can keep stabilization during changing, and after finishing switching, motor still keeps the tachometer value at the end of speed governing；With
This simultaneously, motor system is finely adjusted according to speed, the feedback of current shift to inertia torque, and TCU receives IDCU's
After shifting commands, require selected topic indexing servo motor and open corresponding gear relay according to gearshift to be shifted gears, while
Position to executing agency of putting into gear is monitored, and holding pattern is entered into behind target location to be achieved.
The driving force is recovered loading mode and is specially：
As shown in fig. 6, due to the sliding wear without clutch, after being completed when putting into gear, the recovery loading procedure of driving force
It is to be completed by the control to PMSM torques.If with comfortableness as unique objects, it is required that torque recovers relatively to delay, when
Between it is relatively long, but can so cause the power loss of shift process to increase, cause the obvious stall of vehicle；If with dynamic property
It is unique objects, then requires that the time that torque recovers is more short better, but this easily causes larger shift shock, influences vehicle
Ride comfort.Therefore carrying out when motor torque is controlled, it is necessary to find equalization point therebetween, ensureing that vehicle ride is comfortable
Property under conditions of, as early as possible recover vehicle power.Equally, in order to meet these requirements, it is necessary to ensure motor torque response simultaneously
Rapidity and stability.
Integrated dynamic control system IDCU sets according to the reference output torque of current vehicle speed and entire car controller VCU requirements
Fixed final torque output value, while the speed ratio and motor output torque according to current automatic transmission AMT determine the output of PMSM
The recovery curve of torque, and MCU system is sent to, PMSM is received after target torque instruction and loading rate of change, original
No-load torque on the basis of loaded, reach VCU specify output torque after, the output of MCU just transits directly to vehicle row
Pattern is sailed, TCU systems hold mode is constant in the meantime.
The motor also includes to best power source with the shift control method of the optimization integrated system of automatic transmission
The calculating of property schedule and Best Economy shift schedule.
Best power performance schedule：
Under conventional situation, to embody maximum power output, typically with adjacent two grades under identical throttle of activation force profile
The corresponding speed of intersection point is used as power gears-shifting point, but this method is calculated under vehicle limit, automobile plus
Quick change shelves are a dynamic processes, it is necessary to consider the change of acceleration resistance.
Optimal power performance under dynamical state to be ensured, it should with the corresponding speed of adjacent two grades of accelerating curve intersection points
As power gears-shifting point, that is, need to meet：
In formula, u- electric automobile max. speed, t- electric automobile acceleration time；
According to running car equation, have at n grades：
Simultaneous formula 1) and formula 2) just can try to achieve best power performance shift points ua。
Wherein, δn- transmission system rotating mass inertia factor, the gross mass (kg) of m- electric automobiles, Tq- engines are special
Property, io- speed ratio of main reducer, ign- speed changer n grades of gearratio, ηT- transmission system efficiency, the rolling radius (m) of r- wheels,
G- acceleration of gravity (m/s2), CD- coefficient of air resistance, f- coefficients of rolling resistance, A- front face areas (m2), ua- best power performance
Shift points；
Fig. 7 is according to formula 2) each shelves acceleration --- speed curves under a hundred per cent throttle for drawing out, 1 grade with 2 grades
Accelerating curve intersection point A correspondence speeds are the best power performance shift-up point that lower 1 grade of the throttle changes 2 grades, and 2 grades are handed over 3 grades of curves
Point B correspondences speed to be 2 grades change 3 grades of best power performance shift-up point.According to appeal method, each shelves obtained under different throttles accelerate
Write music the intersection point of line, each intersection point is connected the corresponding best power performance upshift curve of different throttles that obtain.
Best Economy schedule：
All energy of pure electric automobile both from electrokinetic cell, by motor convert electrical energy into mechanical energy with
Drive vehicle.From the consumption angle analysis of energy, the energy of battery is mainly used to eliminate the traveling of automobile in vehicle traveling process
The dissipation of resistance and heat, if total energy of battery storage is W, has：
W·ηb·ηe·ηT=∑ FL 3)
In formula, ∑ F --- all external resistance sums being subject in vehicle traveling process；
The continual mileage of L --- electric automobile；
ηb--- the efficiency of power battery pack；
ηe--- the efficiency of motor and its controller；
ηT--- transmission system efficiency.
From formula 3) as can be seen that in the case where electrokinetic cell and transmission system have determined, its respective efficiency is basic
Constant, uniquely influence distance travelled is exactly the efficiency (lower abbreviation electric efficiency) of motor and its controller.Pure electronic vapour
The formulation of the economy shift schedule of car is the transmission efficiency with motor as foundation, it is ensured that motor always works in possible highest
Effect area.Electric efficiency with adjacent two grades under a certain throttle is principle to the maximum, if the electric efficiency of i.e. current gear is less than down
The efficiency of one gear, then now speed is exactly Best Economy shift points, its design principle is as shown in Figure 8.
The top half of Fig. 8 is electric efficiency performance plot, and the latter half is the corresponding speed of difference gear under same rotational speed
Relation.By taking a certain accelerator open degree as an example, the motor operating point of 1 grade of correspondence is C under certain speed1, 2 grades of operating point is D1, by C1、
D1Project and obtain C on the corresponding motor operation torque curve of electric efficiency performance plot above2、D2, contrast C2、D2Electric efficiency,
If C2Point efficiency is less than the D after gear shift2Point, and as the increase efficiency of motor speed will continue to reduce, so now should be by
1 grade changes to 2 grades；If conversely, C2 point efficiencies are higher than the D after gear shift2Point, is illustrated to be continued to run with the gear and be still in optimal warp
The state of Ji property is, it is necessary to maintain current gear.Therefore, C is made2Point efficiency is higher than D2The critical point of point is economy shift points.Root
The Best Economy shift schedule of pure electric vehicle can be obtained according to above-mentioned principle.
It should be understood that, although this specification is described according to each embodiment, but not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art will should say
Used as an entirety, technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can be with for bright book
The other embodiment of understanding.
The a series of detailed description of those listed above is only for the specific of possible embodiments of the present utility model
Illustrate, they are simultaneously not used to limit protection domain of the present utility model, it is all without departing from the utility model skill spirit made etc.
Effect embodiment or change should be included within protection domain of the present utility model.
Claims (3)
1. the optimization integrated system of a kind of motor and automatic transmission, it is characterised in that including motor (1), motor
Output shaft (2), torsion vibration absorber (3), automatic transmission (4), power transmission shaft (5), main reducing gear (6) and integrated control unit；
The motor output shaft (2) of the motor (1) is with one end of torsion vibration absorber (3) by spline connection, the torsion
The other end of damper (3) is with the input shaft (8) of automatic transmission (4) by spline connection；The automatic transmission (4) it is defeated
Shaft (9) is connected by universal joint with one end of power transmission shaft (5), and the other end of the power transmission shaft (5) is subtracted by universal joint with master
Fast device (6) connection；
The integrated control unit includes entire car controller VCU, integrated dynamic control system IDCU, drive motor controller
MCU and gearbox controller TCU；
The entire car controller VCU judges the driving performance of vehicle, vehicle for the energy elements and vehicle-state of comprehensive vehicle
Controller VCU is electrically connected with accelerator pedal, brake pedal, automobile gears and power-supply system respectively, and by vehicle running state, car
Speed, target requirement driving force, brake force and guard mode information, are broadcasted by CAN or directive sending is dynamic to integration
Force control system IDCU；
The integrated dynamic control system IDCU respectively with entire car controller VCU, drive motor controller MCU and speed changer control
Device TCU electrical connections processed, for synthesis from entire car controller VCU, gearbox controller TCU and drive motor controller MCU
Information, and work to drive motor controller MCU and gearbox controller TCU coordinates control；
The drive motor controller MCU is electrically connected with motor (1), the work for controlling motor (1)；
The gearbox controller TCU is electrically connected with automatic transmission (4), the work for controlling automatic transmission (4).
2. a kind of optimization integrated system of motor according to claim 1 and automatic transmission, it is characterised in that institute
Stating automatic transmission (4) includes input shaft (8), output shaft (9), the first power shift gear (10), the second power shift gear (11), the 3rd
Power shift gear (12), one grade of engaging sleeve (13), two third gear engaging sleeves (14), a shelves gear jackshaft (15), in the middle of intermediate gear
Axle (16) and third gear jackshaft (17)；
3rd power shift gear (12) is fixedly connected with input shaft (8), first power shift gear (10), the second power shift gear
(11) it is enclosed within the output shaft (9) by bearing fit with the 3rd power shift gear (12)；First power shift gear (10)
Lower section is engaged with a shelves gear jackshaft (15), the shelves gear jackshaft (15), intermediate gear jackshaft (16), third gear tooth
Wheel jackshaft (17) is fixedly and coaxially connected, and second power shift gear (11) is engaged with intermediate gear jackshaft (16), and described the
Three power shift gears (12) are engaged with third gear jackshaft (17)；
Between first power shift gear (10) and the second power shift gear (11), one grade is nibbled one grade of engaging sleeve (13)
Trap (13) is connected by spline with output shaft (9) prismatic pair, and the two third gear engaging sleeve (14) is installed in the described second gearshift
Between gear (11) and the 3rd power shift gear (12), two third gear engaging sleeves (14) are connected by spline with output shaft (9) prismatic pair.
3. the optimization integrated system of motor according to claim 1 and automatic transmission, it is characterised in that the drive
Dynamic motor (1) is permagnetic synchronous motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620658947.6U CN206217612U (en) | 2016-06-28 | 2016-06-28 | A kind of optimization integrated system of motor and automatic transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620658947.6U CN206217612U (en) | 2016-06-28 | 2016-06-28 | A kind of optimization integrated system of motor and automatic transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080155A (en) * | 2016-06-28 | 2016-11-09 | 泰州市海博汽车科技有限公司 | A kind of optimization integrated system driving motor and automatic transmission and shift control method |
| CN112525524A (en) * | 2020-11-30 | 2021-03-19 | 奇瑞汽车股份有限公司 | Automatic gear shifting device and automatic gear shifting method of manual transmission |
-
2016
- 2016-06-28 CN CN201620658947.6U patent/CN206217612U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080155A (en) * | 2016-06-28 | 2016-11-09 | 泰州市海博汽车科技有限公司 | A kind of optimization integrated system driving motor and automatic transmission and shift control method |
| CN112525524A (en) * | 2020-11-30 | 2021-03-19 | 奇瑞汽车股份有限公司 | Automatic gear shifting device and automatic gear shifting method of manual transmission |
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