CN107020935A - A kind of electric drive axle system and control method based on sliding sleeve manual transmission - Google Patents

A kind of electric drive axle system and control method based on sliding sleeve manual transmission Download PDF

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Publication number
CN107020935A
CN107020935A CN201710407481.1A CN201710407481A CN107020935A CN 107020935 A CN107020935 A CN 107020935A CN 201710407481 A CN201710407481 A CN 201710407481A CN 107020935 A CN107020935 A CN 107020935A
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CN
China
Prior art keywords
sliding sleeve
motor
differential
jackshaft
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710407481.1A
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Chinese (zh)
Inventor
雷雨龙
闫博
李兴忠
付尧
刚晓新
陈巍
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Jilin University
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Jilin University
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Filing date
Publication date
Application filed by Jilin University filed Critical Jilin University
Priority to CN201710407481.1A priority Critical patent/CN107020935A/en
Publication of CN107020935A publication Critical patent/CN107020935A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/04Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14Inputs being a function of torque or torque demand
    • F16H59/24Inputs being a function of torque or torque demand dependent on the throttle opening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26Generation or transmission of movements for final actuating mechanisms
    • F16H61/28Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32Electric motors actuators or related electrical control means therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • B60K2001/001Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26Generation or transmission of movements for final actuating mechanisms
    • F16H61/28Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32Electric motors actuators or related electrical control means therefor
    • F16H2061/326Actuators for range selection, i.e. actuators for controlling the range selector or the manual range valve in the transmission

Abstract

The invention discloses a kind of electric drive axle system based on sliding sleeve manual transmission, including:Case of transmission;Motor, it is arranged on side in the transmission case body, and including driving motor output shaft;Jackshaft, its one end is rotatably supported in the transmission case body, and reduction gearing is provided with the jackshaft;Sliding sleeve gearshift, it is arranged on the case of transmission opposite side, rotatable to be set on the jackshaft, can be slided along the jackshaft, and being capable of case of transmission described in selective binding or the reduction gearing;Planetary gear mechanism, it connects the motor axle and is fixed on middle part in the transmission case body, the planet carrier of the planetary gear mechanism connects the sliding sleeve gearshift, also discloses a kind of upshift and downshift control method of the electric drive axle system based on sliding sleeve manual transmission.

Description

A kind of electric drive axle system and control method based on sliding sleeve manual transmission
Technical field
The present invention relates to electric drive axle system, more particularly to a kind of electric drive axle system based on sliding sleeve manual transmission and A kind of electric drive control method based on sliding sleeve manual transmission.
Background technology
Electric automobile is new, energy-saving and environmental protection vehicle, especially under the serious overall situation of current air pollution, is had Huge development potentiality and wide application prospect.Electric automobile instead of the engine of orthodox car using motor, electronic Machine can start with carrying, and meet automobile use requirement by reasonably configuring, and this is the very big difference with engine.Electronic It is improper using multi-shifting speed variator on car, if but cancel variable speed drive, it is difficult to take into account automobile climbing and at a high speed row Sail etc. and to require, particularly small and medium-sized car, it is necessary to which the working characteristics for motor redesigns the dynamical system of electric automobile System.
Current electric drive axle system used for electric vehicle is increasingly favored by people, with traditional drive system phase Have the advantages that than, electric drive axle system used for electric vehicle very big, be especially embodied in in terms of environmental protection.Existing electric car two Parallel-axis type and planet row type are used the arrangement form of shift transmission more, using two shift transmissions of parallel-axis type arrangement form, Many switchings that gear is realized by synchronizer or clutch, realize that the switching of gear has following lack according to synchronizer etc. Point, it is necessary to separately installed gear shifting actuating mechanism, increases drive system volume, is not easy to the arrangement of vehicle, and shift process It is middle to there is a situation where power interruption;For two shift transmissions using planet row type arrangement form, be mostly by clutch or Brake combines to realize the switching of gear, but has as a drawback that:Executive component of shifting gears relatively disperses, speed changer and differential mechanism Size is big, causes drive system not compact enough, and there is a situation where that the rotating speed for exporting power can not be matched.
The content of the invention
The present invention has designed and developed a kind of electric drive axle system based on sliding sleeve manual transmission, and transmission portion is by planet Row, sliding sleeve gearshift composition, transmission system plays dragging effect, improves the organic efficiency of braking energy.
A further object of the invention is based on sliding sleeve manual transmission it is a still further object of the present invention to provide a kind of The upshift control method of electric drive axle system, by accurately controlling sliding sleeve and motor, realizes quick upshift process.
It is a still further object of the present invention to provide a kind of downshift controlling party of the electric drive axle system based on two shift transmissions Method, electric drive axle system realizes quick downshift process by Precise Control of Oil door pedal, motor and sliding sleeve.
The technical scheme that the present invention is provided is:
A kind of electric drive axle system based on sliding sleeve manual transmission, including:
Case of transmission;
Motor, it is arranged on side in the transmission case body, and including driving motor output shaft;
Jackshaft, its one end is rotatably supported in the transmission case body, and reduction gearing is provided with the jackshaft;
Sliding sleeve gearshift, it is arranged on the case of transmission opposite side, rotatable to be set on the jackshaft, energy It is enough to be slided along the jackshaft, and being capable of case of transmission described in selective binding or the reduction gearing;
Planetary gear mechanism, it connects the motor axle and is fixed on middle part, institute in the transmission case body The planet carrier for stating planetary gear mechanism connects the sliding sleeve gearshift.
Preferably, the planetary gear mechanism, including:
Planet carrier, its is rotatable to be set on the jackshaft;
Planetary gear shaft, it is supported on the pinion frame;
Preceding planet row sun gear, its is rotatable to be set in the jackshaft other end;
Preceding planet rows of planetary wheel, it is set in the planetary gear shaft, is engaged with the preceding planet row sun gear;
Planet sun gear afterwards, its fixation is set on the jackshaft;
Planet row planetary gear afterwards, it is set in the planetary gear shaft, is engaged with the rear planet sun gear, and can With the preceding planet rows of planetary wheel coaxial rotating.
Preferably, in addition to flexible disk, its one end connects the motor axle, and the other end connects the preceding planet row Sun gear.
Preferably, in addition to differential mechanism, it connects described jackshaft, including left half axle and right axle shaft, the differential mechanism Output power after speed change is exported by left half axle and right axle shaft, the differential mechanism includes:
Differential casing, it is connected with the jackshaft, for the power of planetary gear mechanism to be transmitted to differential In device;
Differential spider pinion shaft, it is arranged in the differential carrier body, and the differential spider pinion shaft is used for band Dynamic differential pinion gear rotation;
First differential bevel wheel, it engages with the differential pinion gear and is fixedly connected with left half axle, and described first Differential bevel wheel is used to drive left half axle to rotate;
Second differential bevel wheel, it engages with the differential pinion gear and is fixedly connected with right axle shaft, and described second Differential bevel wheel is used to drive right axle shaft to rotate.
Preferably, in addition to the reduction gearing connects the differential casing.
Preferably, the sliding sleeve gearshift includes:
Sliding sleeve, it is set on the jackshaft;
Shift motor, it connects the sliding sleeve upper end, for driving the sliding sleeve to be slided along the jackshaft.
A kind of upshift control method of the electric drive axle system based on sliding sleeve manual transmission, including:
First, shift motor is started, driving sliding sleeve gearshift is gradually moved to centre position;
When the rotating speed of motor declines, input speed diminishes, and planet carrier starts to rotate, under sliding sleeve slippage rotating speed is quick Drop, while motor torque reduces the first torque preset value;
After slippage rotating speed drops to preset value, into the slippage relative speed variation decline stage, sliding sleeve is gradually to right working position Mobile, slippage rotating speed is close to zero, and sliding sleeve is completely in right working position, completes upshift operation.
A kind of downshift control method of the electric drive axle system based on sliding sleeve manual transmission, including:
When gas pedal aperture is not less than the first aperture preset value, the first downshift process is performed;When gas pedal aperture is small In the first aperture preset value, judge whether motor torque is less than the second torque preset value;
When motor torque is not less than the second torque preset value, the first downshift process is performed;When motor torque is small In the second torque preset value, judge whether gas pedal aperture rate of change is less than the second aperture preset value;
When gas pedal aperture rate of change is not less than the second aperture preset value, the first downshift process is performed;Work as gas pedal Aperture rate of change is less than the second aperture preset value, performs the second downshift process.
Preferably, the first downshift process includes:
First, shift motor is started, driving sliding sleeve gearshift is gradually moved to centre position;
Motor rotating speed rapid increase, motor rotating speed rate of change rapid decrease, sliding sleeve is to left movement and same Step is rotated;Motor torque increases a preset value;
It is sliding into the rate of change rapid decrease of the rotating speed of motor axle after motor rotating speed increases to preset value Gradually station is moved set to the left, motor torque is promptly restored into the torque before gearshift, now sliding sleeve is completely in left work Position.
Preferably, the second downshift process includes:
First, shift motor is started, driving sliding sleeve gearshift is gradually moved to centre position;Sliding sleeve is gradually to middle displacement It is dynamic.
Judge whether rotating speed rises by the speed probe of motor axle.It is defeated when the rotating speed of motor declines Enter rotating speed to diminish, planet carrier starts to rotate, motor torque is increased a preset value by slippage rotating speed rapid decrease.Work as cunning Differential speed drops to after preset value, into the slippage relative speed variation decline stage, and gradually station is moved this stage sliding sleeve to the left, sliding Differential speed is close to zero, and sliding sleeve is completely in left station.
Beneficial effects of the present invention
1st, power drive system is by motor, sliding sleeve gearshift and differential mechanism composition, and number of parts is less, and structure is tight Gather, be easily installed, and meshed gears number is less in transmission process, effectively improves transmission efficiency.
2nd, motor can realize reversion, so being reversed gear by motor reversal to realize, eliminate the gearshift reversed gear and hold Row mechanism, structure is compacter, and control of reversing gear is simple, easily realizes.
3rd, there are two kinds of mode of operations of motor and generator in motor, when vehicle is in damped condition, driving electricity Machine is converted to generator mode, plays Brake energy recovery, improves the utilization rate of vehicle energy, reaches the effect for saving the energy.
4th, the output power of motor axle, the first output shaft and the second output shaft is subtracted using gear reducer mechanism Speed, realizes the advantage of matching rotating speed and transmission torque.
5th, the upshift control method of electric drive axle system can realize quick upshift process and quick downshift process.
Brief description of the drawings
Fig. 1 is the structural representation of the electric drive axle system of the present invention based on sliding sleeve manual transmission.
Fig. 2 is the upshift control strategy flow chart of the electric drive axle system of the present invention.
Fig. 3 is the downshift control strategy flow chart of the electric drive axle system of the present invention.
Fig. 4 is the Power-off downshift control strategy flow charts of the electric drive axle system of the present invention.
Fig. 5 is the Power-on downshift control strategy flow charts of the electric drive axle system of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text Word can be implemented according to this.
As shown in figure 1, the electric drive axle system based on sliding sleeve manual transmission that the present invention is provided, including:Motor part, Transmission portion, differential portion and half shaft portion composition, wherein transmission portion are by planet row, sliding sleeve gearshift composition.
Wherein, the motor part is arranged on side in case of transmission 140, including:It is motor axle 150, fixed Son 110 and rotor 120 are constituted, and wherein the stator 110 of motor is connected by interference fit with case of transmission 140, are driven When, motor is in electric motor mode, during braking, and motor is in generator mode.Jackshaft 210, its one end can revolve Turn to be supported in case of transmission 140, reduction gearing 240 is provided with jackshaft 210;Sliding sleeve gearshift is arranged on speed changer The opposite side of housing 140, it is rotatable to be set on jackshaft 210, it can be slided along jackshaft 210, and being capable of selective binding change Fast device housing 140 or reduction gearing 240;Planetary gear mechanism, it connects motor axle 150 and is fixed on transmission case Middle part in body 140, the connection sliding sleeve gearshift of planet carrier 310 of planetary gear mechanism.
Planetary gear mechanism, including:Preceding planet row and rear planet row, wherein preceding planet row, including:Preceding planet row is too Sun wheel 320, preceding planet rows of planetary wheel 330, planetary gear shaft 340, planet carrier 310, rear planet row, including:The planet row sun afterwards Wheel 350, rear planet row planetary gear 360, planetary gear shaft 340, and planet carrier 310, wherein, planet carrier 310, its is rotatable to be arranged On jackshaft 210;Planetary gear shaft 340, it is supported in planet carrier 310;Preceding planet row sun gear 320 is rotatable to be set in The other end of jackshaft 210;Preceding planet rows of planetary wheel 330 is set in planetary gear shaft 340, is nibbled with preceding planet row sun gear 320 Close;Planet sun gear 350 afterwards, its fixation is set on jackshaft 210;Planet row planetary gear 360 afterwards, it is set in planetary gear On axle 340, engaged with rear planet sun gear 360, and can be with the preceding coaxial rotating of planet rows of planetary wheel 360.
Sliding sleeve gearshift has the operating position of left, middle and right three, and sliding sleeve 220 is often nibbled with planet carrier 310 by spline Close.When sliding sleeve 220 is moved to the left, planet carrier 310 is combined with case of transmission 140, and planet row is fixed, and realizes bottom gear.When When sliding sleeve 220 moves right, planet carrier 310 is combined with jackshaft 210, realizes top gear.When sliding sleeve 220 is in an intermediate position When, it is unpowered to pass out, it is neutral, wherein sliding sleeve acute pyogenic infection of finger tip synchronizer.
Flexible disk 230, its one end connection motor axle 150, planet row sun gear 320, differential mechanism before other end connection Jackshaft 210, including left half axle 410 and right axle shaft 420 are connected, differential mechanism passes through left half axle 410 to the output power after speed change Exported with right axle shaft 420, differential mechanism includes:Differential casing 430, it is connected with jackshaft 210, for by Planetary Gear Transmission The power of mechanism is transmitted to differential mechanism;Differential spider pinion shaft 440, it is arranged in differential casing 430;Differential mechanism row Star gear shaft 440 is used to drive differential pinion gear 460 to rotate;First differential bevel wheel 450, itself and differential spider tooth Wheel 460 engages and is fixedly connected with left half axle 410, and the first differential bevel wheel 450 is used to drive left half axle 410 to rotate;Second is poor Fast device bevel gear 470, it engages with differential pinion gear 460 and is fixedly connected with right axle shaft 420, the second differential bevel wheel 470 are used to drive right axle shaft 420 to rotate, the connection reduction gearing 240 of differential casing 430.
Sliding sleeve gearshift includes:Sliding sleeve 220, it is set on jackshaft 210;Shift motor, it is connected on sliding sleeve 220 End, for driving sliding sleeve 220 to be slided along jackshaft 210.
The gear switching of electric drive axle system is realized by moving sliding sleeve 220.
During one gear, motor rotates forward and (realizes that the direction of motor rotation that vehicle advances is forward direction), 13 sliding sleeves 220 In left station, now planet carrier 310 is fixed, and power is delivered to flexible disk 230 through driving motor output shaft 150, then soft by 230 Property disk pass to before planet row sun gear 320, then premenstrual planet row planetary gear 330 is delivered to rear planet row planetary gear 360, then Planet row sun gear 350 is delivered to jackshaft 210 after, then is delivered to reduction gearing 240 through jackshaft 210, then through slowing down Device driven gear 370 is delivered to differential casing 430, and the differential casing 430 of rotation drives connected differential mechanism cone tooth Wheel shaft 440 is rotated, by differential spider bevel gear 460 of the needle bearing on differential bevel wheel axle 440 with differential Device bevel gear shaft 440 revolves round the sun, and rotation occurs for the rotating speed of following left half difference, plays differential effect, and differential spider Bevel gear 460 is transferred power on the first differential bevel wheel 450 and the second differential bevel wheel 470 engaged, the One differential bevel wheel 450 drives differential mechanism left half axle 140 to rotate and export power, and the second differential bevel wheel 470 is with moment Fast device right axle shaft 420 rotates and exports power, realizes that power is transmitted.
During two gears, motor is rotated forward, and sliding sleeve 220 is located at right working position, and now planet carrier 310 is combined with jackshaft 210, is turned Speed is identical, and power is delivered to flexible disk 230 through driving motor output shaft 150, then passes to preceding planet row sun gear by flexible disk 320, then premenstrual planet row planetary gear 330 is delivered to planetary gear shaft 340, is then delivered to jackshaft through planet carrier 310 210, then decelerator driving gear 240 is delivered to through jackshaft 210, then it is delivered to differential mechanism through retarder driven gearwheel 370 Housing 430, the differential casing 430 of rotation drives connected differential bevel wheel axle 440 to rotate, and is pacified by needle bearing Differential spider bevel gear 460 on differential bevel wheel axle 440 is revolved round the sun with differential bevel wheel axle 440, and with a left side Rotation occurs for right axle shaft rotating speed difference, plays differential effect, and differential spider bevel gear 460 transfers power to and nibbled with it On the first differential bevel wheel 450 and the second differential bevel wheel 470 closed, the first differential bevel wheel 450 drives differential mechanism Left half axle 410 rotates and exports power, and the second differential bevel wheel 470 drives differential mechanism right axle shaft 420 to rotate and export power, Realize that power is transmitted.
One gear rises two and keeps off a processes, realizes sliding sleeve 220 from left station to being moved to right working position, power by shift control unit Flexible disk 230 is delivered to through driving motor output shaft 150, then preceding planet row sun gear 320 is passed to by flexible disk 230, then is passed through Preceding planet rows of planetary gear 330 is delivered to planetary gear shaft 340, be then delivered to jackshaft 210 through planet carrier 310, then passes through Countershaft 210 is delivered to reducer gear 240, is then delivered to differential casing 430 through retarder driven gearwheel 370, rotation Differential casing 430 drives connected differential bevel wheel axle 440 to rotate, and being arranged on differential mechanism by needle bearing bores tooth Differential spider bevel gear 440 on wheel shaft 430 is revolved round the sun with differential bevel wheel axle 430, and the rotating speed of following left half is different Generation rotation, plays differential effect, and differential spider bevel gear 460 transfers power to the first differential mechanism engaged On the differential bevel wheel 470 of bevel gear 450 and second, the first differential bevel wheel 450 drives differential mechanism left half axle 410 to rotate simultaneously Power is exported, the second differential bevel wheel 470 drives differential mechanism right axle shaft 420 to rotate and export power, realize that power is transmitted.
Two gear drops one keep off process, realize sliding sleeve 220 from right working position to being moved to left station, power by shift control unit Flexible disk 230 is delivered to through driving motor output shaft 150, then preceding planet row sun gear 320 is passed to by flexible disk, then through moving ahead Star rows of planetary gear 330 is delivered to rear planet row planetary gear 360, then planet row sun gear 350 is delivered to jackshaft after 210, then decelerator driving gear 240 is delivered to through jackshaft 210, then it is delivered to differential mechanism through retarder driven gearwheel 370 Housing 430, the differential casing 430 of rotation drives connected 25 differential bevel wheel axle 440 to rotate, and passes through needle bearing Differential spider bevel gear 460 on differential bevel wheel axle 440 is revolved round the sun with differential bevel wheel axle 440, and with Rotation occurs for the rotating speed difference of left and right half, plays differential effect, and differential spider bevel gear 460 transfers power to and it On the first differential bevel wheel 450 and the second differential bevel wheel 470 of engagement, the first differential bevel wheel 450 drives differential Device left half axle 410 rotates and exports power, and the second differential bevel wheel 470 drives differential mechanism right axle shaft 420 to rotate and export dynamic Power, realizes that power is transmitted.
When reversing gear, motor reversion (opposite with forward direction), sliding sleeve 220 is located at left station, and now planet carrier is fixed, Power is delivered to flexible disk 230 through driving motor output shaft 150, then passes to preceding planet row sun gear 320 by flexible disk 230, Premenstrual planet row planetary gear 330 is delivered to rear planet row planetary gear 360 again, then planet row sun gear 350 is delivered to after Jackshaft 210, then reducer gear 240 is delivered to through jackshaft 210, then it is delivered to differential through retarder driven gearwheel 370 Device housing 430, the differential casing 430 of rotation drives connected differential bevel wheel axle 450 to rotate, and passes through needle bearing Differential spider bevel gear 460 on differential bevel wheel axle 440 is revolved round the sun with differential bevel wheel axle 440, and with Rotation occurs for the rotating speed difference of left and right half, plays differential effect, and differential spider bevel gear 460 transfers power to and it On the first differential bevel wheel 450 and the second differential bevel wheel 470 of engagement, the first differential bevel wheel 450 drives differential Device left half axle 410 rotates and exports power, and the second differential bevel wheel 470 drives differential mechanism right axle shaft 420 to rotate and export dynamic Power, realizes power transmission of reversing gear.
During neutral, sliding sleeve 220 is centrally located, input that jackshaft 210 is unpowered, has cut off power transmission.
When vehicle need to be braked with a gear traveling, motor is switched to generator mode by electric motor mode, to transmission System plays dragging effect, and the traveling kinetic energy of vehicle is converted into electric energy.
When vehicle need to be braked with two gear travelings, motor is switched to generator mode by electric motor mode, and sliding sleeve is moved Left station is moved, dragging effect is played to transmission system, the organic efficiency of braking energy is improved.
Flexible disk 230 causes whole drive system in transmission dynamic process, it is to avoid perfect rigidity connection, reduces and is The impact of system, improves the service life of parts.
The sliding sleeve gearshift of power drive system is operated according to table 1.
Table 1
"●" represents sliding sleeve position in table 1.
As shown in Fig. 2 a kind of upshift control method of the electric drive axle system based on sliding sleeve manual transmission, including:
One gear rises two gears and is divided into 5 stages:Shift motor starts, and sliding sleeve is moved to middle position, and slippage rotating speed control, slippage turns Fast slop control, sliding sleeve is located at right working position.
First, shift motor is started, shift motor, which works, causes sliding sleeve gradually to be moved to middle position, passes through motor axle Speed probe judges whether rotating speed declines, and when the rotating speed of motor declines, input speed diminishes, and planet carrier starts to turn It is dynamic, slippage rotating speed rapid decrease, wherein, the slippage rotating speed=motor rotating speed-gear gearratios of output rotating speed * 2,
Then, the request that torque is reduced is sent to motor by CAN communication, motor torque is reduced one in advance If value 50rpm, after slippage rotating speed drops to preset value 10rpm, into slippage relative speed variation decline stage, this stage sliding sleeve Gradually moved to right working position, slippage rotating speed is close to zero, and sliding sleeve is completely in right working position, i.e., combined with jackshaft, complete upshift behaviour Make.
As shown in figure 3, a kind of downshift control method of the electric drive axle system based on sliding sleeve manual transmission, including:
When gas pedal aperture is not less than the first aperture preset value 30%, the first downshift process is performed;When gas pedal is opened Degree is less than the first aperture preset value 30%, judges whether motor torque is less than the second torque preset value 100Nm;
When motor torque is not less than the second torque preset value 100Nm, the first downshift process (Power-on downshifts are performed Process);When motor torque is less than the second torque preset value 100Nm, judge gas pedal aperture rate of change whether less than the Two aperture preset values 15%;
When gas pedal aperture rate of change is not less than the second aperture preset value 15%, the first downshift process (Power- is performed On downshifts process);When gas pedal aperture rate of change is less than the second aperture preset value 15%, the second downshift process is performed (Power-off downshifts process).
As shown in figure 4, the first downshift process (Power-on downshifts process) includes:
Power-on downshift processes are divided into five stages:Shift motor startup stage, sliding sleeve is moved to middle position, motor In the rotating speed rapid increase stage, in the motor rotating speed rate of change rapid decrease stage, sliding sleeve is to left movement and synchronous.
First, shift motor starts, and shift motor, which works, causes sliding sleeve to be moved to middle position, and the load of motor reduces, So that motor rotating speed increases sharply;
Then, the request that torque is reduced is sent to motor by CAN communication, motor torque is increased by one in advance If value 50rpm, after motor rotating speed increases to preset value 50rpm, the rate of change into the rotating speed of motor axle is quick Decline, gradually station is moved sliding sleeve to the left, motor torque is promptly restored into the torque before gearshift, now sliding sleeve is located completely In left station, i.e., combined with case of transmission, complete downshift process.
As shown in figure 5, the second downshift process (Power-off downshifts process) includes:
Power-off downshift processes are divided into 5 stages:Shift motor starts, and sliding sleeve is moved to middle position, slippage rotating speed control System, slippage rotating speed slop control, sliding sleeve is located at left station.
Shift motor starts, and shift motor, which works, causes sliding sleeve gradually to be moved to middle position, passes through the rotating speed of motor axle Sensor judges whether rotating speed rises.When the rotating speed of motor declines, input speed diminishes, and planet carrier starts to rotate, sliding Differential speed rapid decrease, the slippage rotating speed motor rotating speed-gear gearratios of output rotating speed * 1
Then, the request that torque is reduced is sent to motor by CAN communication, motor torque is increased by one in advance If value 50rpm, after slippage rotating speed drops to preset value 10rpm, into slippage relative speed variation decline stage, this stage sliding sleeve Gradually station is moved to the left, and slippage rotating speed is close to zero.
Sliding sleeve is completely in left station, i.e., combined with case of transmission, completes downshift process.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited In specific details and shown here as the legend with description.

Claims (10)

1. a kind of electric drive axle system based on sliding sleeve manual transmission, it is characterised in that including:
Case of transmission;
Motor, it is arranged on side in the transmission case body, and including driving motor output shaft;
Jackshaft, its one end is rotatably supported in the transmission case body, and reduction gearing is provided with the jackshaft;
Sliding sleeve gearshift, it is arranged on the case of transmission opposite side, rotatable to be set on the jackshaft, Neng Gouyan The jackshaft is slided, and being capable of case of transmission described in selective binding or the reduction gearing;
Planetary gear mechanism, it connects the motor axle and is fixed on middle part, the row in the transmission case body The planet carrier of star gear drive connects the sliding sleeve gearshift.
2. the electric drive axle system according to claim 1 based on sliding sleeve manual transmission, it is characterised in that the planet Gear drive, including:
Planet carrier, its is rotatable to be set on the jackshaft;
Planetary gear shaft, it is supported on the planet carrier;
Preceding planet row sun gear, its is rotatable to be set in the jackshaft other end;
Preceding planet rows of planetary wheel, it is set in the planetary gear shaft, is engaged with the preceding planet row sun gear;
Planet sun gear afterwards, its fixation is set on the jackshaft;
Planet row planetary gear afterwards, it is set in the planetary gear shaft, is engaged with the rear planet sun gear, and can be with institute Planet rows of planetary wheel coaxial rotating before stating.
3. the electric drive axle system according to claim 1 or 2 based on sliding sleeve manual transmission, it is characterised in that also wrap Flexible disk is included, its one end connects the motor axle, and the other end connects the preceding planet row sun gear.
4. the electric drive axle system according to claim 1 based on sliding sleeve manual transmission, it is characterised in that also including difference Fast device, it connects the jackshaft, including left half axle and right axle shaft, and the differential mechanism passes through left half to the output power after speed change Axle and right axle shaft output, the differential mechanism include:
Differential casing, it is connected with the jackshaft, for the power of planetary gear mechanism to be transmitted to differential mechanism;
Differential spider pinion shaft, it is connected with the differential carrier, and the differential spider pinion shaft is used to drive differential mechanism Planetary gear is revolved round the sun and rotation;
First differential bevel wheel, it engages with the differential pinion gear and is fixedly connected with the first output shaft, and described first Differential bevel wheel is used to drive the first output shaft rotation;
Second differential bevel wheel, it engages with the differential pinion gear and is fixedly connected with the second output shaft, and described second Differential bevel wheel is used to drive the second output shaft rotation;
When differential mechanism bevel gear shaft drives differential pinion gear to be revolved round the sun, the first output shaft and the second output shaft carry out constant speed Output;When differential mechanism bevel gear shaft drive differential pinion gear revolved round the sun and rotation, the second output shaft and the second output shaft Carry out differential output.
5. the electric drive axle system according to claim 4 based on sliding sleeve manual transmission, it is characterised in that also including institute State reduction gearing and connect the differential casing.
6. the electric drive axle system based on sliding sleeve manual transmission according to claim 1 or 5, it is characterised in that described Sliding sleeve gearshift includes:
Sliding sleeve, it is set on the jackshaft;
Shift motor, it connects the sliding sleeve upper end, for driving the sliding sleeve to be slided along the jackshaft.
7. a kind of upshift control method of the electric drive axle system based on sliding sleeve manual transmission, it is characterised in that including:
First, shift motor is started, driving sliding sleeve gearshift is gradually moved to centre position;
When the rotating speed of motor declines, input speed diminishes, and planet carrier starts to rotate, sliding sleeve slippage rotating speed rapid decrease, Motor torque reduces the first torque preset value simultaneously;
After slippage rotating speed drops to preset value, into the slippage relative speed variation decline stage, sliding sleeve is gradually moved to right working position, Slippage rotating speed is close to zero, and sliding sleeve is completely in right working position, completes upshift operation.
8. a kind of downshift control method of the electric drive axle system based on sliding sleeve manual transmission, it is characterised in that including:
When gas pedal aperture is not less than the first aperture preset value, the first downshift process is performed;When gas pedal aperture is less than the One aperture preset value, judges whether motor torque is less than the second torque preset value;
When motor torque is not less than the second torque preset value, the first downshift process is performed;When motor torque is less than the Two torque preset values, judge whether gas pedal aperture rate of change is less than the second aperture preset value;
When gas pedal aperture rate of change is not less than the second aperture preset value, the first downshift process is performed;When gas pedal aperture Rate of change is less than the second aperture preset value, performs the second downshift process.
9. the downshift control method of the electric drive axle system according to claim 8 based on sliding sleeve manual transmission, it is special Levy and be, the first downshift process includes:
First, shift motor is started, driving sliding sleeve gearshift is gradually moved to centre position;
Motor rotating speed rapid increase, motor rotating speed rate of change rapid decrease, sliding sleeve is to left movement and synchronously turns It is dynamic;Motor torque increases a preset value;
After motor rotating speed increases to preset value, into the rate of change rapid decrease of the rotating speed of motor axle, sliding sleeve by Gradually station is moved to the left, and motor torque is promptly restored into the torque before gearshift, and now sliding sleeve is completely in left station.
10. the downshift control method of the electric drive axle system according to claim 8 based on sliding sleeve manual transmission, it is special Levy and be, the second downshift process includes:
First, shift motor is started, driving sliding sleeve gearshift is gradually moved to centre position;Sliding sleeve is gradually moved to middle position.
Judge whether rotating speed rises by the speed probe of motor axle.When the rotating speed of motor declines, input turns Speed diminishes, and planet carrier starts to rotate, and motor torque is increased a preset value by slippage rotating speed rapid decrease.When slippage turns Speed drops to after preset value, into the slippage relative speed variation decline stage, and gradually station is moved this stage sliding sleeve to the left, and slippage turns Speed is close to zero, and sliding sleeve is completely in left station.
CN201710407481.1A 2017-06-02 2017-06-02 A kind of electric drive axle system and control method based on sliding sleeve manual transmission Pending CN107020935A (en)

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CN201710407481.1A CN107020935A (en) 2017-06-02 2017-06-02 A kind of electric drive axle system and control method based on sliding sleeve manual transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710407481.1A CN107020935A (en) 2017-06-02 2017-06-02 A kind of electric drive axle system and control method based on sliding sleeve manual transmission

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110345222A (en) * 2019-07-10 2019-10-18 宁波上中下自动变速器有限公司 Vehicle automatic speed variator transmission system and vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110345222A (en) * 2019-07-10 2019-10-18 宁波上中下自动变速器有限公司 Vehicle automatic speed variator transmission system and vehicle

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Inventor after: Lei Yulong

Inventor after: Yan Bo

Inventor after: Li Xingzhong

Inventor after: Fu Yao

Inventor after: Gang Xiaoxin

Inventor after: Chen Wei

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