CN2925948Y - Multi-bridge driving system of mixed-dynamic vehicle - Google Patents
Multi-bridge driving system of mixed-dynamic vehicle Download PDFInfo
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- CN2925948Y CN2925948Y CN 200620055320 CN200620055320U CN2925948Y CN 2925948 Y CN2925948 Y CN 2925948Y CN 200620055320 CN200620055320 CN 200620055320 CN 200620055320 U CN200620055320 U CN 200620055320U CN 2925948 Y CN2925948 Y CN 2925948Y
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Abstract
The utility model relates to a double or multi-axle hybrid power automobile drive system with fuel and electric power as the energy resource, consisting of at least a mechanical driving axle subassembly, at least an electric driving axle subassembly, a power supply subassembly, a master controller and a monitoring communication network system. An engine and a multifunctional double-rotor motor respectively directly drive different axles. The double-rotor motor is composed by the matching of an out rotor wound with a winding, and an inner rotor, the out rotor is connected with the boss at one side through the reducing (reversing) mechanism at one side and the universal transmission mechanism, and the inner rotor is connected with the boss at the other side through the reversing reducing mechanism and the universal transmission mechanism in order. Not only the system integrates a variety of technologies and functions such as completely hybrid power, all-axle or double-axle driving, differential gear and speed-slowing device between wheels and axles, but also the whole automobile has the advantages of convenience for realizing the lowering of the fabrication cost, and convenience for reducing the non-suspended mass to improve the driving smoothness and stability, etc.
Description
Technical field
The utility model relates to a kind of automobile driving system, specifically is to be two or many bridges (axle) mixed power automobile driving system of the energy with fuel oil and electric energy.
Background technology
Present various battery-driven car and hybrid vehicle development are rapidly, and very swift and violent for the increase in demand of car, cross-country car and the SUV (sport utility vehicle) of four wheel drive in recent years, attention is also more and more received in the research of the hybrid powerization of two or many bridges (axle) four-wheel drive car.Existing mixed power automobile driving system mainly contains:
(1) based on the conflux partition type (the THS system of Toyota Company) of mechanism of two degrees of freedom planet branch, be to drive and design-calculated at driving of front axle list bridge or rear axle list bridge, this is comparatively representative type representative, but characteristic because of its planetary mechanism " speed-variation square ", if do not take ameliorative measure will be difficult to realize the variation of transmitting ratio in a big way, only be suitable for working load and change little light-duty hybrid power car.
(2) application number is that 02205008.6 Chinese utility model patent adopts the mechanical type switch mode of operation that is similar to speed-changing gear box, this is to increase dynamical element such as electrical motor to form on the driving system basis of original orthodox car, but it is quick that it is difficult between multiple mode of operation, smooth-going and frequent switching, only be fit to adopt the given typical condition of corresponding minority to carry out the elementary control policy that simple mode switches, thereby be unfavorable on dynamic assembly, adopting advanced Optimal Control Strategy to realize minimum discharge, improve vehicle performance optimization aim such as fuel economy and dynamic property.
(3) patent No. is the Chinese utility model patent employing independent suspension motor-driven vehicle bridge modular construction of 02266310.X, though this pattern can reasonablely be implemented in the optimization aim under the various complicated operating conditions, but complex structure has also increased non-spring and carries the amplitude of impact load that (non-suspension) quality makes that suspension is subjected in the driving process, body vibrations and wheel and jump out of ground-surface probability and increase to some extent, has reduced travelling comfort and stability.
And traditional moving structure of mixing is seldom developed separately at four-wheel drive car, and some is to adopt existing mixing to move structure and part-time case is installed, and some is exactly that transmission shaft of motor independent drive is installed on the basis of the intrinsic diff of orthodox car.Such design not only can better not brought into play the energy-conservation potentiality of hybrid power Technological Economy, and is difficult to avoid the drawback of traditional differential structure.
The utility model content
The purpose of this utility model is to overcome the defective of prior art, a kind of efficient, simple drive system scheme that is suitable for various two or many bridges (axle) four-wheel driven hybrid power cars is provided, not only solved the driving efficiency problem of traditional satellite differential, realize energy-conserving and environment-protective, and have both functions such as driving, differential, braking energy regeneration.
The utility model is achieved through the following technical solutions:
A kind of multiple axle driving system of hybrid vehicle comprises at least one Mechanical Driven bridge branch unit, at least one electric drive axle branch unit, power supply branch unit, master controller and monitoring communication network system;
Described Mechanical Driven bridge is made up of mechanical components such as driving engine, change-speed box, transmission shaft, main reduction gear, diff, semiaxis, wheel hub, drgs and is turned to or the non-conventional vehicle bridge of type that turns to;
Described electric drive axle branch unit is by the double-rotor machine direct drive, electric drive axle comprises double-rotor machine, controller, about slow down and the mechanism of commutation, left and right sides universal transmission mechanism, semiaxis, wheel hub, drg, adopt the broken bridge of car structure of independent suspension, described double-rotor machine is made of outer rotor and the internal rotor cooperation that winding twines, outer rotor is connected with a side wheel hub with universal transmission mechanism by the speed reduction gearing of a side, internal rotor is connected with the opposite side wheel hub with universal transmission mechanism by communtation deceleration mechanism successively, about slow down and drg is installed in the both sides of the output shaft of direction reverser, winding on the described outer rotor also is connected with the double-rotor machine controller by collector-shoe gear and lead, and the double-rotor machine controller also is connected with vehicle power by power bus;
Described power supply branch unit mainly is made up of vehicle power and the administration module of monitoring mode of operations such as its charging and discharging currents, voltage and temperature, and administration module is connected with battery pack;
Described master controller and monitoring communication network system are made of the master controller that contains telltale, communication bus and interface circuit and the various sensors and the electronic control unit that are distributed in each branch unit parts; Master controller and telltale are microcomputers that control policy and algorithm software are housed, communication network adopts CAN bus or point-to-point direct communication system, and the various sensors that are distributed in each branch unit parts are connected with the overhead control phase with communication bus by interface circuit with electronic control unit.Sensor wheel speed sensors, brake-pressure sensor, steering wheel angle sensor, yaw-rate sensor, lateral acceleration sensor, double-rotor machine torque and accelerator pedal position sensor, the reflection driver of described master controller and monitoring communication network system is to driving or the electric current and the voltage sensor of the throttle of the demand of braking gross horsepower and brake pedal jaw opening sensor, power supply the electric current of rotating speed of motor sensor, electric machine controller, voltage, temperature sensor on the wheel.
Mechanical Driven bridge branch unit and electric drive axle branch unit be the front axle and the rear axle of powered vehicle respectively, and be perhaps opposite; The whole system operation state is by master controller and monitoring communication network system control operation.
Above-mentioned Mechanical Driven bridge can also comprise motor, and motor and driving engine constitute integrated starter motor/electrical generator (ISA/ISG), and motor also is connected with electric machine controller, and described electric machine controller also is connected with vehicle power by dc bus (DC-bus).Can constitute the hybrid power system of a series parallel type with driving engine bonded assembly motor and double-rotor machine, structure also allows to constitute a drive system in parallel by electric drive axle and conventional engine Mechanical Driven bridge (not having motor 1), double-rotor machine both can be used as the driving differential integral type system of pure electric automobile, hybrid vehicle, also can be used as the driven bridge that retarder is applied to orthodox car.Motor can be selected disc type electric machine for use for the convenience of arranging, when machine operation at generating state, when double-rotor machine was operated in motoring condition, native system was with series system work; When they were operated in electronic or generating state simultaneously, native system was with parallel way work.(commutation) speed reduction gearing of double-rotor machine both sides can be selected planetary mechanism for use, also can select direct gear reduction or other speed reduction gearing for use.Motor can be selected integrated actuator alternating current generator/dynamo generator for use, and (integrated starter alternator/generator, form ISA/ISG) also can be selected torque synthetic form such as forms such as gear mesh or belt-driving for use.Described double-rotor machine is made of the inside and outside rotor cooperation with winding or permanent magnet, can be AC induction motor, ac synchronous motor, DC machine, permanent magnet DC motor or permanent magnet AC motor.
The sensor of described master controller and monitoring communication network system comprises that wheel speed sensors, brake-pressure sensor, steering wheel angle sensor, yaw-rate sensor, lateral acceleration sensor, double-rotor machine torque and accelerator pedal position sensor, reflection driver are to driving or the electric current and the voltage sensor of the throttle of the demand of braking gross horsepower and brake pedal jaw opening sensor, power supply the electric current of rotating speed of motor sensor, electric machine controller, voltage, temperature sensor on the wheel.
The principle of work of the utility model bridge-drive is as follows:
As illustrated in fig. 1 and 2, introduce the winding 23 on the outer rotor 24 and constitute C/LOOP through lead and carbon brush, collector-shoe gear and slip ring 21 by the electric current of electric machine controller 7 outputs.Based on the same mechanism of common squirrel-cage AC induction motor, the alternating current that flows into this machine winding 23 produces rotating field, causes the interior induced potential that produces of sliver of internal rotor 22 windings.Because of sliver current hysteresis after-potential, the mutual action of winding and 22 generations of internal rotor constitutes electromagnetic torque, and carries out transformation of energy.Because when the air-gap field of transmission electromagnetic power constituted electromagnetic force to internal rotor, coil assembly also bore counter-force simultaneously, so the electromagnetic torque that the electromagnetic force of this a pair of action and reaction constitutes is equivalent oppositely directed two torques.And the mechanical mechanism of this motor has two mechanism freedoms, turns round simultaneously along reciprocal direction so act on inside and outside two rotors that equivalent oppositely directed two electromagnetic torques are formed internal rotor 22 and winding respectively on internal rotor 22 and the winding respectively.When two rotor speed differences surpass setting value, the drg 27,31 that is installed on the planet row of the very fast side of rotating speed will move, the speed discrepancy of control both sides.From conservation of angular momentum principle, the electromagnetic torque that the internal rotor 22 of double-rotor machine and outer rotor 24 are exported respectively also must be oppositely equivalent.
Electromagnetic torque for the non-salient pole alternating current dynamo is:
In the formula: T
mBe electromagnetic torque; P is a number of pole-pairs; W
mBe that the interior magnetic of air gap altogether can; θ
STBe the angle between excitation winding magnetic potential axis and internal rotor rotor magnetic potential axis.
Can draw:
In common electric machine, with the corresponding antagonistic force of electromagnetic force that drives the internal rotor running, the counter-force that the base frame by equipment produces is offset and is not done work, and the double-rotor machine in the native system then utilizes the drive wheels running of doing work jointly of application force and antagonistic force.Rotating field kinematic velocity-electromagnetism rotation speed n
s, be to be the definite amount of numerical value of frame of reference with respect to winding.Can see that the same frame of reference greatly of the winding of this double-rotor machine relatively rotates.For common AC asynchronous motor, slip n refers to the electromagnetism rotation speed n
sPoor with internal rotor rotor speed n:
Δn＝n
s-n
According to the relativism of motion, when the direction vector of the winding of double-rotor machine and rotating field rotation was opposite, the internal rotor rotating speed of motor was n
d=n-n
jWhen winding maintained static, the internal rotor rotating speed of motor was n
d=n; And when the direction vector of winding and rotating field rotation identical, the internal rotor rotating speed of motor then is n
d=n+n
jThe winding of common electric machine belongs to stator component, so n
j=0, so common electric machine is a kind of extraordinary circumstances of double-rotor machine when winding is fixed.
In native system, two former moving assemblies have been made up to changeing the traction double-rotor machine, so under the conventional state of general normal traction load, the rotating speed that this motor rotation constitutes is characterized as: n=n
d+ n
j
In fact rotation speed n is exactly internal rotor with the winding of motion is the rotating speed of frame of reference, and when winding rotating speed when being zero, rotation speed n is exactly the rotating speed of internal rotor in common electric machine.To changeing in the traction double-rotor machine, rotation speed n is called relative rotation speed.In operational process, technical parameters such as the electric current of motor, electromagnetic torque are not subjected to n
d, n
jThe influence that changes, but arbitrary subtle change of relative rotation speed n have then all constituted technical parameters such as the electric current of motor and electromagnetic torque and have changed.Therefore, the variation of a series of technical parameters such as electric current of double-rotor machine is all only set up corresponding relation by the variation of this motor relative rotation speed one by one.The actual speed of two rotors of this motor then be with its sum or the algebraic value form and the relative rotation speed of difference set up reciprocity variation relation.The principle of the diff that uses on this and the conventional truck is very similar.
Two rotor output characteristic of double-rotor machine have:
T
md+T
mj＝2T
m n＝n
d+n
j
When double-rotor machine turns round, on two rotors of electrical motor, produce onesize and moment that direction is opposite, so two rotors of motor turn round in the opposite direction.The effect of communtation deceleration planet row by being installed in the outer any side of two rotors of motor, finally the both sides semiaxis that drives respectively by two rotors of motor to same direction with identical moment of torsion horsepower output.
Motion analysis:
If ω
WlAngular velocity omega for left side wheel
WrCireular frequency for right side wheels
T
lOutput torque T for left side wheel
rOutput torque for right side wheels
ω
AlThe angular velocity omega of left side constant-velocity universal joint
ArThe cireular frequency of right side constant-velocity universal joint
ω
dThe angular velocity omega of internal rotor
zThe wound rotor cireular frequency
T
dThe output torque T of internal rotor
zExcitation winding rotor output torque
ω
GlLeft side gear ring angular velocity omega
TlLeft side sun wheel angular velocity omega
JlLeft side pinion carrier cireular frequency
ω
GrRight side gear ring angular velocity omega
TrRight side sun wheel angular velocity omega
JrRight side pinion carrier cireular frequency
k
lLeft side planet row k value k
rRight side planet row k value
In the time of the vehicle straight-line travelling, left side wheel equates with the rotating speed of right side wheels.And this moment, the inside and outside rotor constant speed of double-rotor machine antiport.By annexation as can be known: ω
Wl=ω
Jl=ω
Alω
Tl=ω
zω
Wr=ω
Gr=ω
Arω
d=ω
TrAlso have single planet to rafting moving sexual intercourse:
ω
t+k×ω
q＝(1+k)×ω
j
Want both sides vehicle constant speed then:
Then have: 1+k
l=k
r
The identical torque of wheel output that will keep both sides in the time of running car, and by aforementioned, the moment of two rotor outputs of double-rotor machine also equates have:
T
d＝T
z，T
r＝T
l
T
l＝(1+k
l)T
d，
1+k
l＝k
r
So in design both sides planet row mechanism, will satisfy following formula.
In order to improve the carrying capacity of automobile on bad road surface, when touching mire or ice and snow road as a drive wheel of automobile, trackslip in the wheel original place on muddy road surface, and in good ground-surface wheel transfixion.This is because very little at wheel on the muddy road surface and the adhesive ability between the road surface, the road surface can only be very little to the semiaxis effect the moment of reaction, though another wheel and good ground-surface adhesive ability are very big, but because two characteristics that the rotor output torque is identical in the motor, the torque that the torque that makes wheel on good road surface be assigned to can only obtain with the drive wheel that generation is trackslipped equates, cause total tractive force to be not enough to overcome resistance to motion, automobile can not move.In order to address the above problem, utilize the drg 27,31 on two rotor of output shaft axle of double-rotor machine, (the drive wheel wheel speed of the maximum that calculates about the turn radius 5m according to general automobile is poor greater than 40% when the difference of the absolute rotating speed of electrical motor two output shafts, the different model vehicle parameter is set different) time, drg 27,31 will be worked, with rotating speed faster output shaft embrace, increasing its moment of reaction, improve the output torque of the slower output shaft of rotating speed.This anti-skid device can also be united use with vehicle-mounted original brake system, has both utilized vehicle-mounted original ABS system to add control policy and has finished working of brakes.
Along with developing of automobile industry, the road-holding property of automobile receives publicity day by day.Four-wheel steering technology (4WS) is meant four technology that wheel all can turn in automobile front and back.During the four-wheel steering automobile low cruise, front and back wheel is carried out phase reversal and is turned to, and can reduce turn radius, improves the maneuverability of automobile; During high-speed cruising, front and back wheel is carried out same-phase and is turned to, and makes automobile reach steady state response very soon, the road-holding property of automobile when having improved high speed owing to travel direction changes the yaw velocity and the lateral acceleration that produce.But present four-wheel steering technology all is to adopt multi-connecting-rod mechanism or hydraulic actuating cylinder etc. that four vehicle angles are carried out working control, and the steering swivel system that will develop a cover mechanism complexity so separately not only cost increases but also is difficult to control.
The master controller of the utility model hybrid four-wheel drive system and monitoring communication network subsystem are passed through wheel speed sensors, brake-pressure sensor, the steering wheel angle sensor, yaw-rate sensor, the lateral acceleration sensor, double-rotor machine actual torque and accelerator pedal position sensor are to the signal by gearbox output, the motion state signal of wheel hub and gear ratio signal etc. are collected, the car load master controller carries out filtering to these signals then, and the estimation friction coefficient, side velocity, the value of supplementary variables such as the actual sideslip angle of wheel and vehicle and tire force.This module also will detect situations such as whether there being the inconsistent and sharply turning of left and right wheels adhesion value.Issue instructions to controller then and comprise that double-rotor machine controller and drg wait and adjust the left and right wheels rotating speed, arrive a kind of effect that changes turn radius.The change of this turn radius is not the real inclined to one side give part of a turn when turning of four wheels all around, but reaches change turn radius effect by the speed discrepancy of controlling two trailing wheels on the basis of traditional front-wheel steering.At a high speed and can increase and reduce the turn radius of automobile low-tach the time respectively, its principle is shown in Fig. 3 A, 3B and 3C, Fig. 3 A has only two front-wheels to participate in the scheme drawing that turns to, Fig. 3 B is the scheme drawing that increases turn radius when running at high speed, and reduces the scheme drawing of turn radius during Fig. 3 C low speed driving.O ' is not for carrying out the center of gyration of active steering control among the figure, and O is the center of gyration that carries out active steering control, V
FlBe the near front wheel rotating speed, V
FrBe off front wheel rotating speed, V
RlBe left rear wheel rotating speed, V
RrBe the off hind wheel rotating speed.As shown in Figure 3A, O ' is the turning center of vehicle, and four wheels are around the turning center rotation of vehicle, this moment by turning center to the distance of outer wheel flutter and ground contact point turn radius.In high speed steering, make automobile reach steady state response very soon, the road-holding property of automobile in the time of could improving high speed like this owing to travel direction changes the yaw velocity and the lateral acceleration that produce as far as possible.When control system is judged automobile and carried out high speed steering, narrate the output parameter of regulating double-rotor machine and drg after the instruction that actuating unit as can be known receives controller by fwd.Specifically be that double-rotor machine controller 7 improves two output rotors 22 of double-rotor machine, in the time of 24 relative output speed, the drg of Vehicular turn inboard (may 27 or 31 in one) is carried out suitable braking, increase the rotating speed of the outer side drive wheel of bend and reduce the rotating speed of curve inner side drive wheel, know by Fig. 3 B, the trailing wheel triangle of velocity vectors of this moment is because the change of two rear drive sprocket wheel speeds, the triangle hypotenuse is to the direction run-off the straight away from front-wheel, thereby cause the car load turning center to direction skew, thereby reach the purpose that increases turn radius away from the vehicle barycenter.Know by Fig. 3 C, judge automobile when controller and will carry out low speed when changeing the sharp turn, double-rotor machine controller 7 improves two output rotors 22 of double-rotor machine, in the time of 24 relative output speed, brake by drg (may 27 or 31 in) thereby to the motor in the bend outside and to cause the trailing wheel triangle of velocity vectors because the change of two rear drive sprocket wheel speeds, the triangle hypotenuse is to the direction run-off the straight near front-wheel, thereby cause the car load turning center to direction skew, thereby reach the purpose that reduces turn radius near the vehicle barycenter.
Compared with prior art, the utility model proposes a kind of adapt to light, in, heavy all types of twin shafts (bridge) four-wheel driven hybrid power automotive use requires, be convenient to frequently to switch fast between multiple mode of operation, be suitable for adopting the series parallel type dynamic assembly of advanced person's Optimal Control Strategy.Be convenient to mixed power electric car according to the actual vehicle driving cycle, take parallel connection, series connection, series-parallel mode of operation also is easy to monitor and adopts advanced control policy to improve car load fuel economy and reduction pollutant emission.The double-rotor machine that adopts not only can provide propulsive effort but also can produce differential effect, and function unites two into one, and has saved traditional transmission shaft, main reduction gear, diff etc., thereby has shortened whole power transfer path greatly, has improved the efficient of car load.
Description of drawings
Fig. 1 is the utility model assembly structure scheme drawing.
Fig. 2 is the structural representation of the electric drive axle of the utility model double-rotor machine driving.
Fig. 3 A has only two front-wheels to participate in the scheme drawing that turns to.
Fig. 3 B is the scheme drawing that increases turn radius when running at high speed.
Fig. 3 C reduces the scheme drawing of turn radius when being low speed driving.
Fig. 4 is the dynamic assembly scheme drawing that is used for rear-mounted engine full-sized car (motorcoach).
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1
As shown in Figure 1, a kind of multiple axle driving system of hybrid vehicle comprises at least one Mechanical Driven bridge branch unit, at least one electric drive axle branch unit, power supply branch unit, master controller and monitoring communication network system.Wherein,
Mechanical Driven bridge branch unit comprises Mechanical Driven bridge and dynamic assembly.The Mechanical Driven bridge is made up of mechanical components such as driving engine 2 (containing fuel tank, electricity-controlling throttle etc.), change-speed box 17, transmission shaft, main reduction gear, diff 16, semiaxis 3,18, wheel hub 4,19, drgs and is turned to or the non-conventional vehicle bridge of type that turns to, in order to realize press at any time specified torque of control policy and rotating speed export distribute the function of power.Change-speed box 17 can adopt the automatic transmission with hydraulic torque converter of hydraulic automatic speed variator (AT), electric-controlled mechanical automatic speed transmission (AMT) or mechanical stepless automatic speed changer types such as (CVT); Driving engine 2 can connect and compose with the driving engine hybrid power assembly of the ISA/ISG form that is the major impetus source with motor 1 subsystem.Driving engine 2 can be spark ignition engine, diesel engine or other hot machine.Adopt the disc type electric machine form as motor 1, then the flywheel of driving engine is replaced by the outer rotor of motor 1.Motor 1 can be finished multiple functions such as electronic, generating, fire an engine according to the instruction control of driver in the requirement of monitoring strategies and the actual travel.Motor 1 participates in work such as driving, generating, energy recovery and undertakes driving engine and shut down starting to work of starting at any time at any time.The composition of this branch unit and annexation and parallel type hybrid dynamic automobile power assembly are similar, but electricity-controlling throttle is not subjected to directly controlling of driver, and determine oil feed rate by the horsepower output that master controller is distributed to driving engine according to control policy.
As shown in Figure 1, 2, the electric drive axle branch unit comprise double-rotor machine, double-rotor machine controller 7, about slow down mechanism 14,8, left and right sides universal transmission mechanism 12,9, semiaxis, wheel hub 10,13, the drg 27,31 of (commutation), adopt the broken bridge of car structure of independent suspension, collection driving, differential, braking energy regeneration, change turn radius are one.Members such as transmission shaft, main reduction gear and diff corresponding to the conventional mechanical drive axle are replaced by double-rotor machine and controller thereof, but other members such as semiaxis, wheel hub, drg have been kept, also set up (planet) gear mechanism that is used to slow down with communtation deceleration in the left and right sides of double-rotor machine respectively, thereby made electric drive axle have differential function.Described double-rotor machine is that the squirrel-cage alternating current asynchronous is to changeing double-rotor machine, the outer rotor 24 and internal rotor 22 cooperations of being twined by winding 23 constitute, outer rotor 24 is connected with single wheel 13 with universal transmission mechanism 12 by the speed reduction gearing 14 of a side, and internal rotor is connected with opposite side wheel 10 with universal transmission mechanism 9 by communtation deceleration mechanism 8 successively; Also can be that the inner and outer rotors exchange connects.The communtation deceleration mechanism of one side comprises sun wheel 32, pinion carrier 20, gear ring 30, satellite gear 29, drg 31, and gear ring 30 connects firmly with casing 11; Opposite side communtation deceleration mechanism comprises sun wheel 25, pinion carrier 28, gear ring 26, drg 27, and pinion carrier 28 connects firmly with casing 11.Meshing with the pinion carrier 28 that is fixed on frame behind sun wheel 25 and the double-rotor machine one side output shaft fixed connection, gear ring 26 is connected with the output universal transmission mechanism as output, and by the drg 27 that is installed on the gear ring necessary control of braking is carried out in its output.Winding 23 on the outer rotor 24 is connected with double-rotor machine controller 7 by collector-shoe gear and lead 21, and double-rotor machine controller 7 also is connected with vehicle power 6.Electric machine controller 7 comprises realizes two-way DC-DC (DC/DC) or the power electric device of DC-AC (DC/AC) conversion and the electronic control unit (ECU) of electric machine speed regulation etc.About the slow down both sides installation drg of output shaft of (commutation) mechanism, prevent skidding of single wheel and cause the whole axle drive shaft can't output drive strength.Drg and electric machine controller are used the effect that can also output increases and reduce turn radius.Generally speaking, the internal rotor of motor rotates to two different directions with unofficial biography, and outer rotor drives constant-velocity universal joint and rotates behind reduction planetary row, and internal rotor is connected with constant-velocity universal joint after connecting communtation deceleration planet row again.The communtation deceleration planet queues the effect of the direction of the torque that changes internal rotor output, makes two wheels that identical sense of motion be arranged.In the motor-driven vehicle, power bus is powered to motor, and when braking energy reclaimed, motor sent to power bus conversely.
The power supply branch unit mainly is made up of vehicle power 6 and administration module thereof, and its radical function is the electric energy that provides and accept the motor feedback to motor, and to other current consumer power supplies.Vehicle power 6 is that accumulators such as battery and/or super capacitor are formed, administration module is connected with vehicle power, and the mode of operations such as charging and discharging currents, voltage and battery pack temperature by accumulators such as various sensor monitoring battery groups, realize the electric weight equilibrium etc. between each monomer of battery pack.The power supply branch unit also can comprise to other low-voltage electrical appliances of vehicle supplies galvanic additional device 15 formations such as grade, and additional device 15 is connected in parallel on the dc bus (DC-bus).
Master controller and monitoring communication network system are the brain and the nervous centralis of whole assembly, mainly by master controller 33 (and show) device, communication bus and interface circuit and be distributed in various sensors in each branch unit parts and formations such as electronic control unit ECU.Master controller and telltale come down to a microcomputer that control policy and algorithm software are housed, constantly gather the signal of each sensor and each parts ECU by network system, calculate mode of operation and the power output of determining each parts and also shown, send the instruction of co-ordination by control policy to each parts ECU; Each ECU makes corresponding actr action according to instruction that receives from network and information, the running state of function unit, provides the power of requirement, and the current state signal of associated components is returned to master controller through network.Here communication network can adopt the fieldbus and the interface circuit of CAN bus type; Comprised in the various sensors that the reflection driver is to driving on the wheel or the throttle of the demand of braking gross horsepower and brake pedal jaw opening sensor etc.The control policy of native system is formulated according to actual vehicle design parameters and operating needs, in the electric machine controller 7 according to control policy input native system, controller produces the kinematic parameter of corresponding action control double-rotor machine to control signal by gross vehicle controller and communication network 33.
Described four principal assembly co-ordinations are in a hybrid vehicle, Mechanical Driven bridge branch unit and electric drive axle branch unit be the front axle and the rear axle of powered vehicle respectively, energy as required can two-way flow between drive axle and vehicle power, and the whole system operation state is by master controller and monitoring communication network system control operation.Specifically be that master controller sends control signal according to control policy and driver command, signal is sent to control signal receiving terminals such as electric machine controller, double-rotor machine controller and driving engine line traffic control throttle by network, these signal receiving ends have been analyzed control signal instruction back controlled object have separately been controlled, and energy flows between each controlled object and vehicle power thereupon.
The various real work patterns of present embodiment are as follows:
1, electricity starts drive pattern
When common level road vehicle start, according to the Das Gaspedal state, master controller starts double-rotor machine, and cut-off clutch and change-speed box change neutral, by electric drive axle with the electric-only mode powered vehicle.When vehicle reaches certain speed of a motor vehicle, drag the driving engine quick operated start by motor, again in conjunction with power-transfer clutch, enter the combination drive pattern.Above state has been avoided the shortcoming of the high oil consumption of engine idle, maximum discharge.
2, pure motorized motions pattern
Vehicle ' is when being higher than certain setting value or driving engine and major failure occurs to battery in the extra high area of emission request (as the scenic spot, the highly dense district of population), the car, vehicle promptly changes pure motorized motions pattern over to.Under this pattern, driving engine is not worked, and according to the effect horse power demand, drives automobile by electric drive axle.
3, pure engine drive pattern
Only when major failure or human intervention appearred in motor or battery, vehicle changed pure engine drive pattern over to.Under this pattern, master controller sends instruction, stops double-rotor machine 11 and motor 1, and vehicle is that the Mechanical Driven bridge of propulsion source drives and to travel by driving engine fully.
4, hybrid power series-parallel connection task driven pattern
In general vehicle condition, master controller is controlled the output gross horsepower and the power division of dynamic assembly according to the optimization aim of control policy, actual vehicle condition power demand and battery pack state-of-charge.Driving engine, motor, electric drive axle constantly switch between parallel connection and series-parallel connection (connection in series-parallel) mode of operation.
5, hybrid power tandem working drive pattern
Can't satisfy under the lower situation of emission request and battery pack state-of-charge or during the change-speed box et out of order, vehicle changes the tandem working drive pattern in the work of series-parallel connection pattern.The driving engine stable operation is an anti-emission carburetor operation point drive motor generating, and the electric energy that sends and the electric energy of battery storage are united to the double-rotor machine power supply, by the electric drive axle powered vehicle.
6, energy feeding braking drive pattern
Under the above-mentioned any mode of operation except that pure engine drive pattern, and when vehicle needs braking deceleration or descending speed limit, master controller is according to the brake pedal signal, cut-off clutch, simultaneously send the given signal of negative moment to electric drive axle, make it be in the anti-generating state that drags, to the battery pack feedback electric energy.When the brake pedal signal continues to increase, original mechanical braking sytem is also started working, at first to guarantee to satisfy the needs of braking safety.
Use the multiple axle driving system of the utility model hybrid vehicle, be convenient between multiple mode of operation, frequently switch fast, be suitable for adopting the series parallel type dynamic assembly of advanced Optimal Control Strategy; Also being convenient to monitor adopts advanced control policy to improve car load fuel economy and reduction pollutant emission.The double-rotor machine that adopts not only can provide propulsive effort but also can produce differential effect, and function unites two into one, and has saved traditional transmission shaft, main reduction gear, diff etc., thereby has shortened whole power transfer path greatly, has improved the efficient of car load.By rotating speed control to electronic bridge double-rotor machine, can carry out assisted diversion control to turn inside diameter under the different speed of a motor vehicle, realize to increase or reduce the function of turn radius, the turning alerting ability when improving road-holding property that the vehicle tempo turn travels and low speed driving.
Embodiment 2:
Fig. 4 be the utility model at as vehicle exploitation such as rear-engined motorcoach, be a kind of embodiment that derives of native system, front axle is that electric drive axle drives among the figure, rear axle is driven by the Mechanical Driven bridge that driving engine and motor constitute, other is with embodiment 1.
Embodiment 3:
For three shaft drying multi-wheelers, can constitute by a Mechanical Driven bridge and two electric drive axles, other is with embodiment 1.
As mentioned above, can better implement the utility model.
Claims (8)
1, a kind of multiple axle driving system of hybrid vehicle comprises at least one Mechanical Driven bridge branch unit; Described Mechanical Driven bridge is made up of mechanical components such as driving engine, change-speed box, transmission shaft, main reduction gear, diff, semiaxis, wheel hub, drgs and is turned to or the non-conventional vehicle bridge of type that turns to; It is characterized in that described multiple axle driving system also comprises at least one electric drive axle branch unit, power supply branch unit, master controller and monitoring communication network system;
Described electric drive axle branch unit is by the double-rotor machine direct drive, electric drive axle comprises double-rotor machine, controller, about slow down and the mechanism of commutation, left and right sides universal transmission mechanism, semiaxis, wheel hub, drg, adopt the broken bridge of car structure of independent suspension, described double-rotor machine is made of outer rotor and the internal rotor cooperation that winding twines, outer rotor is connected with a side wheel hub with universal transmission mechanism by the speed reduction gearing of a side, internal rotor is connected with the opposite side wheel hub with universal transmission mechanism by communtation deceleration mechanism successively, about slow down and drg is installed in the both sides of the output shaft of direction reverser, winding on the described outer rotor also is connected with the double-rotor machine controller by collector-shoe gear and lead, and the double-rotor machine controller also is connected with vehicle power by power bus;
Described power supply branch unit mainly is made up of vehicle power and the administration module of monitoring mode of operations such as its charging and discharging currents, voltage and temperature, and administration module cooperates with vehicle power;
Described master controller and monitoring communication network system are made of the master controller that contains telltale, communication bus and interface circuit and the various sensors and the electronic control unit that are distributed in each branch unit parts; Master controller and telltale are microcomputers that control policy and algorithm software are housed, communication network adopts CAN bus or point-to-point direct communication system, and the various sensors that are distributed in each branch unit parts are connected with the overhead control phase with communication bus by interface circuit with electronic control unit;
Mechanical Driven bridge branch unit and electric drive axle branch unit be the front axle and the rear axle of powered vehicle respectively, and be perhaps opposite; The whole system operation state is by master controller and monitoring communication network system control operation.
2, according to the multiple axle driving system of the described hybrid vehicle of claim 1, it is characterized in that described Mechanical Driven bridge also comprises motor, motor and driving engine constitute integrated starter motor/electrical generator, motor also is connected with electric machine controller, and described electric machine controller is connected with vehicle power by dc bus.
3, according to the multiple axle driving system of the described hybrid vehicle of claim 1, it is characterized in that described electric drive axle branch unit about slow down and the mechanism of commutation is a planetary mechanism.
4, multiple axle driving system according to the described hybrid vehicle of claim 1, the sensor wheel speed sensors that it is characterized in that described master controller and monitoring communication network system, brake-pressure sensor, the steering wheel angle sensor, yaw-rate sensor, the lateral acceleration sensor, double-rotor machine torque and accelerator pedal position sensor, the reflection driver is to driving or brake the throttle and the brake pedal jaw opening sensor of the demand of gross horsepower on the wheel, the electric current of power supply and voltage sensor, the rotating speed of motor sensor, the electric current of electric machine controller, voltage, temperature sensor.
5, according to the multiple axle driving system of the described hybrid vehicle of claim 1, it is characterized in that described electric drive axle drives front axle, rear axle is driven by the Mechanical Driven bridge that driving engine and motor constitute.
6,, it is characterized in that described multiple axle driving system comprises a Mechanical Driven bridge and two electric drive axles according to the multiple axle driving system of the described hybrid vehicle of claim 1.
7,, it is characterized in that described double-rotor machine is made of the inside and outside rotor cooperation with winding or permanent magnet according to the multiple axle driving system of the described hybrid vehicle of claim 1.
8,, it is characterized in that described double-rotor machine can be AC induction motor, ac synchronous motor, DC machine, permanent magnet DC motor or permanent magnet AC motor according to the multiple axle driving system of the described hybrid vehicle of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200620055320 CN2925948Y (en) | 2006-02-27 | 2006-02-27 | Multi-bridge driving system of mixed-dynamic vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200620055320 CN2925948Y (en) | 2006-02-27 | 2006-02-27 | Multi-bridge driving system of mixed-dynamic vehicle |
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| CN2925948Y true CN2925948Y (en) | 2007-07-25 |
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| CN 200620055320 Expired - Lifetime CN2925948Y (en) | 2006-02-27 | 2006-02-27 | Multi-bridge driving system of mixed-dynamic vehicle |
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| CN100391768C (en) * | 2006-02-27 | 2008-06-04 | 华南理工大学 | Multiple axle driving system for oil-electricity mixed power automobile |
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| CN103204083A (en) * | 2013-04-08 | 2013-07-17 | 浙江吉利汽车研究院有限公司杭州分公司 | Electric car and power drive system thereof |
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| CN106740017A (en) * | 2016-12-09 | 2017-05-31 | 苏州海格新能源汽车电控系统科技有限公司 | A kind of double-rotor machine drive system of the integrated electrical annex for electric automobile |
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| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080604 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |