CN102303517B - Extended range hybrid electric vehicle power system with modes switched by synchronizer - Google Patents

Extended range hybrid electric vehicle power system with modes switched by synchronizer Download PDF

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Publication number
CN102303517B
CN102303517B CN201110170803.8A CN201110170803A CN102303517B CN 102303517 B CN102303517 B CN 102303517B CN 201110170803 A CN201110170803 A CN 201110170803A CN 102303517 B CN102303517 B CN 102303517B
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China
Prior art keywords
synchronizer
motor
gear
generator
pattern
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CN201110170803.8A
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Chinese (zh)
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CN102303517A (en
Inventor
米春亭
张毅
郭进端
秦大同
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苏州安远新能源动力有限公司
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles
    • Y02T10/6213Hybrid vehicles using ICE and electric energy storage, i.e. battery, capacitor
    • Y02T10/623Hybrid vehicles using ICE and electric energy storage, i.e. battery, capacitor of the series-parallel type
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles
    • Y02T10/6213Hybrid vehicles using ICE and electric energy storage, i.e. battery, capacitor
    • Y02T10/623Hybrid vehicles using ICE and electric energy storage, i.e. battery, capacitor of the series-parallel type
    • Y02T10/6243Electrical distribution type

Abstract

The invention aims to provide an extended range hybrid electric vehicle power system with modes switched by a synchronizer. The system comprises a first motor and a second motor, an engine, a planetary gear train, the synchronizer, a fixed canine tooth ring which is fixedly connected with a box, a shaft gear canine tooth ring which is fixedly connected with a gear of an output shaft of the first motor, and a battery and an inverter; the engine is connected with a planet carrier of the planetary gear train; the second motor is connected with a sun gear of the planetary gear train through a sleeve; annular internal gears of the planetary gear train can be fixed on the box through the synchronizer and can also be connected with the output shaft of the first motor through the synchronizer, and the output shaft of the first motor is connected with a main change gear; the synchronizer is positioned between the fixed canine tooth ring and the shaft gear canine tooth ring; the annular internal gears of the planetary gear train are connected with a shaft sleeve spline of the synchronizer; the extended range hybrid electric vehicle power system can run in a pure motor-driven way to realize zero oil consumption and emission, and if the extended range hybrid electric vehicle power system needs to run for a long distance, the extended range hybrid electric vehicle system can run in an extended range mode, and the motor controls the position of the synchronizer to realize mode switching.

Description

The range-extending type hybrid electric vehicle switched using synchronizer implementation pattern

Technical field

The present invention relates to a kind of automobile dynamic system, more particularly to a kind of range-extending type hybrid electric vehicle of use synchronizer implementation pattern switching.

Background technology

Hybrid vehicle has the advantages that fuel-economizing and low emission, but still provides power by fuel oil.Pure electric automobile is then without fuel oil, but under current battery technical conditions, and the mileage that once charges is limited.Stroke lengthening hybrid power automobile can comprehensive electric automobile and orthodox car advantage, in necessarily design mileage, it can realize zero oil consumption and zero-emission with pure motor driving.If necessary to travel over long distances, then it can be run in the case where increasing journey pattern.The hybrid power system used at present in auto industry circle(Including increasing journey design)Usually serial hybrid system either parallel hybrid system, its pattern switching realized by electromagnetic clutch, complex structure, and manufacturing cost is expensive, and operational mode is limited.

The content of the invention

It is an object of the invention to provide a kind of range-extending type hybrid electric vehicle of use synchronizer implementation pattern switching, it can be by pure motor driving, realize zero oil consumption and zero-emission, if necessary to travel over long distances, it can then be run in the case where increasing journey pattern, its pattern switching is realized by motor control synchronizer position.

A kind of range-extending type hybrid electric vehicle of use synchronizer implementation pattern switching, it includes:First motor/generator and the second motor/generator, engine, planet circular system, synchronizer, the fixation canine tooth ring being fixedly connected with casing, the shaft gear canine tooth ring being fixedly connected with the gear of the first motor/generator output shaft, battery and inverter, engine is connected with the planet carrier of planet circular system, second motor/generator is connected by covering axle with the sun gear of planet circular system, the ring internal gear of planet circular system can be fixed on casing by synchronizer, it can also be connected by synchronizer with the first motor/generator output shaft, first motor/generator output shaft is connected with main change gear;The synchronizer is located between fixed canine tooth ring and shaft gear the canine tooth ring, the ring internal gear of planet circular system and the axle sleeve spline connection of synchronizer.When synchronizer is located at neutral gear position, first motor/generator is separated with ring internal gear, when synchronizer is located at right end position, the clutch collar of its synchronizer is engaged with shaft gear canine tooth ring, first motor/generator is connected with ring internal gear, when synchronizer is located at left position, the clutch collar of the synchronizer is engaged with fixed canine tooth ring, and ring internal gear is fixed on casing;In the casing comprising planet circular system and synchronizer, the dynamical system, which is also set up, includes a tongue axle that rotation is driven by pattern switching controlled motor, and its axis is parallel with the axis of synchronizer;There is a gearshift groove on the tongue axle, the shift fork contact for being inserted with synchronizer shifting fork bar is may move in the gearshift groove, the shifting fork bar is connected with synchronizer and allows synchronizer to rotate to it, the gearshift groove has the first stopper, the second stopper corresponding to synchronizer left position and the neutral corner portion between first stopper and the second stopper corresponding to the synchronizer right end position, when the shift fork contact is located at the first stopper of the gearshift groove, the synchronizer is connected with shaft gear canine tooth ring;When the shift fork contact is located at the second stopper of the gearshift groove, the synchronizer is connected with fixed canine tooth ring;When the shift fork contact is located at the neutral corner portion of the gearshift groove, the shift fork contact is held in the circumferencial direction around the axis of tongue axle so that synchronizer is located at neutral gear position;

The present invention has three operational modes:It is pure electronic, series hybrid-power, parallel hybrid power;

Pure electric operation pattern:Automobile is in this mode operation, and synchronizer is located at neutral gear position, and engine and the second motor/generator are all closed, automobile is driven by the first motor/generator, all driving forces are provided by battery, and according to design needs, this pattern can ensure that automobile is pure electronic in certain voyage;

Series hybrid mode:Automobile is in this mode operation, and synchronizer is located at left position(That is second gear position), the ring internal gear of planet circular system is fixed on casing, when entering this pattern, engine is started by the second motor/generator first, then the generating of the second motor/generator is supplied power to by planet circular system, in such a mode, automobile is still driven by the first motor/generator, this pattern is actually series operation pattern, that is, the motor/generator of engine driving second generates electricity, the electric energy sent is supplied to the first motor/generator to drive automobile, unnecessary electric energy can also be charged the battery by inverter, this pattern be adapted in low-power requirements operating mode when to increase journey mode operation;

Parallel hybrid mode:Automobile is in this mode operation, and synchronizer is located at right end position(That is first gear position), ring internal gear is connected with the first motor/generator output shaft, and this pattern is adapted to automobile high power requirements operating mode, and this pattern is actually a kind of electronic CVT mode, is run mainly as journey pattern is increased in high power operating mode.

Preferably, engine is connected with the planet carrier of planet circular system, second motor/generator is connected with the sun gear of planet circular system, and the ring internal gear of planet circular system can be connected by synchronizer and casing, can also be connected by synchronizer with the first motor/generator output shaft.

Preferably, it has three operational modes, i.e. electric-only mode, series hybrid mode and parallel hybrid mode, because with this three patterns, the vehicle for equipping this system can be in certain mileage by pure electric operation, when needing long distance running, extended-range pattern can be used(Series hybrid-power or parallel hybrid mode)Operation.

Preferably, its operational mode switching is realized that the position of synchronizer is first gear position, and the tongue axle that neutral gear position and second gear position are driven by single controlled motor is controlled by synchronizer.

Preferably, gearshift groove is machined with the tongue axle, the first stopper of the gearshift groove includes first gear position and the first gear slope between the first gear position and the neutral corner portion, the first corner of first gear slope correspondence gearshift groove.

Preferably, the second stopper of the gearshift groove includes second gear position and the second gear slope between the second gear position and the neutral corner portion, the second corner of second gear slope correspondence gearshift groove.

Preferably, the automatic gear shift apparatus has in the neutral corner portion between the first stopper and the second stopper so that synchronizer is in neutral gear position in shift process, speed regulating control is carried out to pattern switching controlled motor, it is synchronous steady with implementation pattern switching, so as to optimize gearshift agility and stationarity, and synchronizer abrasion is greatly lowered, the life-span of synchronizer is greatly improved.

The dynamical system of the stroke lengthening hybrid power automobile of use synchronizer implementation pattern switching proposed by the present invention is designed using planetary gear, its pattern switching is realized by motor control synchronizer position, it is simple in construction, possess pure electronic, series hybrid-power, three kinds of operational modes of parallel hybrid power, are a kind of extended-range hybrid power systems of Almightiness type.The present invention has low cost than the hybrid vehicle and pure electric automobile that presently, there are, and mileage length waits technological merit with simple in construction.

Brief description of the drawings

Accompanying drawing 1 is the structural representation of the present invention.

Accompanying drawing 2 is the nodel line expanded view of the gearshift groove of the present invention.

Accompanying drawing 3 is the electric-only mode operation principle schematic diagram of the present invention.

Accompanying drawing 4 is the series hybrid mode operation principle schematic diagram of the present invention.

Accompanying drawing 5 is the parallel hybrid mode operation principle schematic diagram of the present invention.

In accompanying drawing:1st, the first motor/generator;2nd, the second motor/generator;3rd, planet carrier;4th, the second stopper;41 second gear positions;42nd, second gear slope;43 second corners;5 first stoppers;51 first gear positions;52 first gear slopes;53rd, the first corner;6th, engine;7th, battery;8th, sun gear;9th, ring internal gear;10th, inverter;11st, axle is covered;12nd, the first motor/generator output shaft;13rd, main change gear;14th, synchronizer;15th, fixed canine tooth ring;16th, shaft gear canine tooth ring;17th, tongue axle;18th, gear shift groove;19th, fork bar;20th, fork contact;21st, neutral corner portion;211st, neutral corner;22nd, casing.

Embodiment

Presently preferred embodiments of the present invention is described in detail 1-5 below in conjunction with the accompanying drawings, so that advantages and features of the invention can be easier to be understood by the person skilled in the art, and apparent is clearly defined so as to be made to protection scope of the present invention.

A kind of range-extending type hybrid electric vehicle structure of use synchronizer implementation pattern switching proposed by the invention is as shown in Figure 1.This system includes an engine 6, the first motor/generator 1 and the second motor/generator 2, a planet circular system, synchronizer 14, fixed canine tooth ring 15, shaft gear canine tooth ring 16, a Battery pack 7 and drive electronic system(That is inverter 10).Engine 6 is connected with the planet carrier 3 of planet circular system, second motor/generator 2 is connected with the sun gear 8 of planet circular system by covering axle 11, the ring internal gear 9 of planet circular system can be connected by synchronizer 14 and casing 22, can also be connected by synchronizer 14 with the first motor/generator output shaft 12.The shaft gear canine tooth ring 16 is placed on the first motor/generator output shaft 12, and the first motor/generator output shaft 12 is connected with the driving wheel of automobile main change gear 13.The synchronizer 14 is located between the shaft gear canine tooth ring 16 on the fixed canine tooth ring 15 and the first motor/generator output shaft 12, the ring internal gear 9 of planet circular system is connected with the axle sleeve spline of synchronizer 14, when synchronizer 14 is located at neutral gear position, first motor/generator 1 is separated with ring internal gear 9, when synchronizer 14 is located at right end position(That is first gear position)When, its clutch collar is engaged with shaft gear canine tooth ring 16, and the first motor/generator 1 is connected with ring internal gear 9, when synchronizer 14 is located at right end position(That is second gear position), the clutch collar of the synchronizer 14 is engaged with fixed canine tooth ring 15, and ring internal gear 9 is fixed on casing 22.In the casing 22 comprising planet circular system and synchronizer 14, the tongue axle 17 of pattern switching controlled motor driving rotation is provided with, the axis of the tongue axle 17 is parallel with the axis of synchronizer 14.There is a gearshift groove 18 on the tongue axle 17, its nodel line expanded view is as shown in Figure 2, the shift fork contact 20 of shifting fork bar 19 is movably inserted with the gearshift groove 18, the shifting fork bar 19 is connected with synchronizer 14 and allows synchronizer 14 to rotate to it, the gearshift groove 18 has the first stopper 5 corresponding to the right end position of synchronizer 14, the second stopper 4 corresponding to the left position of synchronizer 14 and the neutral corner portion 21 between first stopper 5 and second stopper 4, when the gear of the first stopper 5 one that the shift fork contact 20 is located at the gearshift groove 18 puts 51, the synchronizer 14 is connected with shaft gear canine tooth ring 16;When the gear of the second stopper 4 two that the shift fork contact 20 is located at the gearshift groove 18 puts 41, the synchronizer 14 is connected with fixed canine tooth ring 9;When the shift fork contact 20 is located at the neutral corner portion 21 of the gearshift groove 18, the shift fork contact 20 is held in the circumferencial direction around the axis of tongue axle 17 so that synchronizer 14 is located at neutral gear position.

The dynamical system of stroke lengthening hybrid power automobile of the present invention has three operational modes, pure electronic, series hybrid-power, with parallel hybrid power.Because with this three patterns, equip this system vehicle can in certain mileage by pure electric operation, it is necessary to which during long distance running, extended-range pattern can be used(Series hybrid-power or parallel hybrid mode)Operation.Its pattern switching is realized by motor control synchronizer position.The System Working Principle invented is as described below:

Electric-only mode:

In such a mode, engine 6 is closed with the second motor/generator 2.Synchronizer 14 is in neutral gear position, and the first motor/generator output shaft 12 departs from ring internal gear 9, this mode adaptive vehicle starting, reversing, low cruise and cruising condition.It is adapted to -30 kilometers/hour to 60 kilometers/hour of speed, 0 to 30 kilowatt of power demand scope.This mode power is all provided by battery 7, and its power transmission line is as shown in Figure 3.

As the final ratio after the first motor/generator output shaft 12 is, then the relation between driving wheel and the first motor/generator 1 between torque and rotating speed be:

Herein,WithFor the rotating speed and torque of the first motor/generator 1,WithFor the rotating speed and torque of driving wheel.

Series hybrid mode:

In such a mode, synchronizer 14 is in left position(That is second gear position), the first motor/generator output shaft 12 departs from ring internal gear, and the ring internal gear 9 of planet circular system is fixed on casing 22.When automobile enters this operational mode, engine 6 is started by the second motor/generator 2 first.Then engine 6 drives the second motor/generator 2 to generate electricity by planet circular system.The electric power sent can directly drive the first motor/generator 1 and drive or be charged to battery 7.It is about 0 ~ 60 kilometer/hour that this pattern, which is adapted to velocity interval, and power bracket is about 30 ~ 50Kw.

The power transmission line of this pattern is as shown in Figure 4.

There are following rotating speed and moment conditions between motor under this pattern, engine, driving wheel:

Herein, ,WithRespectively wheel, engine 6 and the rotating speed of planet carrier 3,,WithRespectively the second motor/generator 2, engine 6 and wheel torque,For planetary gear parameter, it is equal to the number of teeth divided by the number of teeth of sun gear 8 of ring internal gear 9.

Parallel connection mixing mixed mode:

In such a mode, synchronizer is in right end position(That is first gear position), the first motor/generator output shaft 12 is connected with ring internal gear 9.This pattern is adapted to high power requirements operating mode, and the suitable velocity interval of institute is more than 50 kilometers/hour, and power demand scope is more than 50 kilowatts.Power transmission line is as shown in Figure 5 under this pattern.

In such a mode, there is following rotating speed and torque relationship between engine 6, the first motor/generator 1 and the second motor/generator 2, driving wheel:

Operational mode switches:

For convenience of description, electric-only mode is now defined as pattern one, series hybrid mode is defined as pattern two, and hybrid mode arranged side by side is defined as pattern three.

According to different operating modes and the charge volume of battery 7, automobile switches between three patterns.Switch between Three models as described below.

One → pattern of pattern two:Automobile is when pattern one is run, engine 6, the second motor/generator 2, and planet circular system is static.Because planetary gear has two frees degree, the clutch collar of synchronizer 14 can smoothly engage fixed canine tooth ring 15 easily, so that after ring internal gear 15 is fixed, the second motor/generator 2 first starts engine 6, is run subsequently into pattern two.

Two → pattern of pattern three:When slave pattern two switches to pattern three, synchronizer 14 departs from fixed canine tooth ring 15, then by control the rotating speed of the second motor/generator 2 make the rotating speed of ring internal gear 9 and the rotating speed of the first motor/generator output shaft 12 reach it is synchronous after, again by the clutch collar shaft gear canine tooth ring 16 of synchronizer 14, thus can efficiently it be switched with the steady of implementation pattern two to pattern three.

One → pattern of pattern three:Under vehicle control unit controls, automobile elder generation slave pattern one is switched to pattern two, and then slave pattern two is switched to pattern three again.

Two → pattern of pattern one:It the clutch collar of synchronizer 14 is departed from fixed canine tooth ring 15 and be placed in neutral gear position, engine 6 stops working, the power-off of the second motor/generator 2.

Three → pattern of pattern one:The shaft gear canine tooth ring 16 that the clutch collar of synchronizer 14 need to only departed from the first motor/generator output shaft 12 is placed in neutral gear position, and engine 6 stops working, the power-off of the second motor/generator 2.

Three → pattern of pattern two:The shaft gear canine tooth ring 16 for making synchronizer 14 depart from the first motor/generator output shaft 12 first is placed in neutral gear position, then make the rotating speed of the ring internal gear 9 of planet circular system be zero by controlling the rotating speed of the second motor/generator 2, the clutch collar of synchronizer 14 is smoothly combined fixed canine tooth ring 15 without impact.

Various patterns as described above are selected according to vehicle behavior and the charge volume of battery 7, to reach dynamic property, comfortableness, low energy consumption, the optimum results of low emission.Because electric-only mode can reach the stroke of 100 kms according to design requirement, the dynamical system of such a stroke lengthening hybrid power automobile can ensure pure electric operation in most circumstances, and extended-range is run if necessary, so as to realize convenience to the full extent, low energy consumption, zero-emission(Or minimum discharge).

The position control of synchronizer 14:The operational mode switching of dynamical system is realized that the position of synchronizer 14 is first gear position 51, and the tongue axle 17 that neutral gear position and second gear position 41 are driven by single controlled motor is controlled by synchronizer 14.Gearshift groove 18 is machined with the tongue axle 17, first stopper 5 of the gearshift groove 18 includes first gear position 51 and the first gear slope 52 between the first gear position 51 and the neutral corner portion 21, the first corner 53 of the first gear slope 52 correspondence gearshift groove 18.Second stopper 4 of the gearshift groove 18 includes second gear position 41 and the second gear slope 42 between the second gear position 41 and the neutral corner portion 21, the second corner 43 of the second gear slope 42 correspondence gearshift groove 18.

The tongue axle 18 has in the neutral corner portion 21 between the first stopper 5 and the second stopper 4 so that synchronizer 14 is in neutral gear position in shift process, speed regulating control is carried out to pattern switching controlled motor, it is synchronous steady with implementation pattern switching, so as to optimize gearshift agility and stationarity, and the abrasion of synchronizer 14 is greatly lowered, the life-span of synchronizer 14 is greatly improved.

The extended-range hybrid vehicle dynamical system pattern switching invented with description exemplified by the control process of two → pattern of pattern three of one → pattern two is controlled in mode below.

Automobile is when pattern one is run, shift fork contact 20 is in neutral gear position 21, first motor/generator output shaft 12 departs from ring internal gear 9, automobile is driven by the first motor/generator, receive after the switching instruction of one → pattern of pattern two, gearshift controlled motor drives tongue axle 17 to rotate, and shift fork contact 20 is in into the bottom of second gear slope 42 at 0.2 second or so.Subsequently into second gear slope 42, gearshift controlled motor drives tongue axle 17 to continue to rotate the second corner 43, so that the fixed canine tooth ring 15 of the clutch collar of synchronizer 14 engagement, so as to complete the switching that pattern one arrives pattern two.

Automobile is when pattern two is run, shift fork contact 20 is in second gear position 41, the clutch collar of synchronizer 14 is engaged with planet canine tooth ring 15, receive after the switching instruction of two → pattern of pattern three, shift motor drives tongue axle 17 to rotate, and shift fork contact 20 is in the bottom on second gear slope 42 at 0.2 second or so, the clutch collar of synchronizer 14 is departed from fixed canine tooth ring 15, now synchronizer 14 is in neutral, while shift motor drives tongue axle 17 to continue to rotate.Because provided with neutral corner portion 21, shift fork contact 20 keeps its axial location, it is still within neutral gear position, turned in gearshift tongue axle 17 in the time of neutral corner 211, make the rotating speed of ring internal gear 9 consistent with the rotating speed of the first motor/generator by being subject to voltage control to the second motor/generator 2, then shift fork contact 20 reaches first gear position 51 under controlled motor drive along first gear slope 52, the clutch collar of synchronizer 14 is set to be engaged with shaft gear canine tooth ring 16, so as to complete pattern two to the switching of pattern three.A little speed discrepancy in handoff procedure is synchronous by synchronizer 14 in first corner 53 on first gear slope 52.

Other handoff procedure principles are similar to the handoff procedure in foregoing description.

The dynamical system of the stroke lengthening hybrid power automobile of the implementation pattern of use synchronizer 14 switching proposed by the present invention uses the design of planetary gear, its pattern switching is realized by the position of motor control synchronizer 14, it is simple in construction, possess pure electronic, series hybrid-power, three kinds of operational modes of parallel hybrid power, are a kind of extended-range hybrid power systems of Almightiness type.The present invention has low cost than the hybrid vehicle and pure electric automobile that presently, there are, and mileage length waits technological merit with simple in construction.

Detailed technology elaboration has been carried out to the power system architecture and principle and embodiment of stroke lengthening hybrid power automobile proposed by the present invention above.It is obvious that on the basis of without departing from scope and spirit of the present invention, can be to existing invention(Including technical matters)Modify.In the technical field of the invention, a GPRS technical minimum, it is possible in the range of the technology main idea of the present invention carries out various changes.

Claims (5)

1. a kind of range-extending type hybrid electric vehicle of use synchronizer implementation pattern switching, it is characterised in that:It includes:First motor/generator and the second motor/generator, engine, planet circular system, synchronizer, the fixation canine tooth ring being fixedly connected with casing, the shaft gear canine tooth ring being fixedly connected with the gear of the first motor/generator output shaft, battery and inverter, engine is connected with the planet carrier of planet circular system, second motor/generator is connected by covering axle with the sun gear of planet circular system, the ring internal gear of planet circular system can be fixed on casing by synchronizer, it can also be connected by synchronizer with the first motor/generator output shaft, first motor/generator output shaft is connected with main change gear;The synchronizer is located between fixed canine tooth ring and shaft gear the canine tooth ring, the ring internal gear of planet circular system and the axle sleeve spline connection of synchronizer;When synchronizer is located at neutral gear position, first motor/generator is separated with ring internal gear, when synchronizer is located at right end position, the clutch collar of the synchronizer is engaged with shaft gear canine tooth ring, first motor/generator is connected with ring internal gear, when synchronizer is located at left position, the clutch collar of the synchronizer is engaged with fixed canine tooth ring, and ring internal gear is fixed on casing;In the casing comprising planet circular system and synchronizer, the dynamical system also includes a tongue axle that rotation is driven by pattern switching controlled motor, and its axis is parallel with the axis of synchronizer;There is a gearshift groove on the tongue axle, the shift fork contact for being inserted with synchronizer shifting fork bar is may move in the gearshift groove, the shifting fork bar is connected with synchronizer and allows synchronizer to rotate to it, the gearshift groove has the first stopper, the second stopper corresponding to synchronizer left position and the neutral corner portion between first stopper and the second stopper corresponding to the synchronizer right end position, when the shift fork contact is located at the first stopper of the gearshift groove, the synchronizer is connected with shaft gear canine tooth ring;When the shift fork contact is located at the second stopper of the gearshift groove, the synchronizer is connected with fixed canine tooth ring;When the shift fork contact is located at the neutral corner portion of the gearshift groove, the shift fork contact is held in the circumferencial direction around the axis of tongue axle so that synchronizer is located at neutral gear position;
It has three operational modes:It is pure electronic, series hybrid-power, parallel hybrid power;
Electric-only mode:Automobile is in this mode operation, and synchronizer is located at neutral gear position, and engine and the second motor/generator are all closed, automobile is driven by the first motor/generator, all driving forces are provided by battery, and according to design needs, this pattern can ensure that automobile is pure electronic in certain voyage;
Series hybrid mode:Automobile is in this mode operation, synchronizer is located at left position, the ring internal gear of planet circular system is fixed on casing, when entering this pattern, engine is started by the second motor/generator first, then the generating of the second motor/generator is supplied power to by planet circular system, in such a mode, automobile is still driven by the first motor/generator, this pattern is actually series operation pattern, that is, the motor/generator of engine driving second generates electricity, the electric energy sent is supplied to the first motor/generator to drive automobile, unnecessary electric energy can also be charged the battery by inverter, this pattern be adapted in low-power requirements operating mode when to increase journey mode operation;
Parallel hybrid mode:Automobile is in this mode operation, synchronizer is located at right end position, and ring internal gear is connected with the first motor/generator output shaft, and this pattern is adapted to automobile high power requirements operating mode, this pattern is actually a kind of electronic CVT mode, is run mainly as journey pattern is increased in high power operating mode.
2. range-extending type hybrid electric vehicle according to claim 1, it is characterised in that:The switching of its operational mode is realized that the tongue axle that the position of synchronizer is driven by pattern switching controlled motor is controlled by synchronizer.
3. range-extending type hybrid electric vehicle according to claim 1, it is characterised in that:Gearshift groove is machined with the tongue axle, the first stopper of the gearshift groove includes first gear position and the first gear slope between the first gear position and the neutral corner portion, the first corner of first gear slope correspondence gearshift groove.
4. range-extending type hybrid electric vehicle according to claim 1, it is characterised in that:Second stopper of the gearshift groove includes second gear position and the second gear slope between the second gear position and the neutral corner portion, the second corner of second gear slope correspondence gearshift groove.
5. range-extending type hybrid electric vehicle according to claim 1, it is characterised in that:The gearshift groove has in the neutral corner portion between the first stopper and the second stopper so that synchronizer is in neutral gear position in shift process, speed regulating control is carried out to the first motor/generator, the second motor/generator, it is synchronous steady with implementation pattern switching, so as to optimize gearshift agility and stationarity, and synchronizer abrasion is greatly lowered, the life-span of synchronizer is greatly improved.
CN201110170803.8A 2011-06-23 2011-06-23 Extended range hybrid electric vehicle power system with modes switched by synchronizer CN102303517B (en)

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