CN206968384U - Single electric machine mixed power transmission device - Google Patents

Single electric machine mixed power transmission device Download PDF

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Publication number
CN206968384U
CN206968384U CN201720784065.9U CN201720784065U CN206968384U CN 206968384 U CN206968384 U CN 206968384U CN 201720784065 U CN201720784065 U CN 201720784065U CN 206968384 U CN206968384 U CN 206968384U
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China
Prior art keywords
connecting shaft
clutch
gear
transmission device
power transmission
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CN201720784065.9U
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Chinese (zh)
Inventor
李萌
高彬
李隆
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Shanghai Automobile Gear Works
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Shanghai Automobile Gear Works
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Abstract

A kind of single electric machine mixed power transmission device, including:Reducing gear, differential mechanism, housing, the motor being arranged in housing, central shaft, the second brake being set in turn on central shaft, compound planetary row mechanism, the first brake, second clutch, the 3rd clutch and first clutch, the first connecting shaft, the second connecting shaft and the 3rd connecting shaft being connected with compound planetary row mechanism, wherein:The stator of motor is fixedly connected with the casing, and rotor is arranged mechanism with compound planetary by the first connecting shaft and is connected;Compound planetary row mechanism, the second connecting shaft, reducing gear and differential mechanism are sequentially connected;First clutch is between central shaft and the first connecting shaft, and second clutch is located between central shaft and compound planetary row mechanism, and the 3rd clutch is located between compound planetary row mechanism and the first connecting shaft;First brake and second brake are fixedly connected with the casing and are connected respectively with the first connecting shaft and the 3rd connecting shaft;The utility model can have a wide range of application, vdiverse in function and have low-cost advantage.

Description

Single electric machine mixed power transmission device
Technical field
The utility model relates to a kind of technology in vehicle drive-train field, specifically a kind of single electric machine mixed power Transmission device.
Background technology
Environmental pollution and problems of energy consumption make major motor corporation all in actively research and development energy-saving and environment-friendly automobile, main to concentrate Improvement, the exploitation of new energy dynamical system in internal-combustion engine system.Technically the hybrid power system of comparative maturity turns into existing rank Section solves the possible technique scheme of automobile energy consumption and environmental pollution, and hybrid power dedicated transmission is a to be directed to hybrid power The gearbox of system work characteristics design, has feature-rich, low cost and other advantages, turns into the important of hybrid power production development Direction.
Utility model content
The utility model is excessively complicated for prior art geared rotor system and only has two kinds of work under combination drive pattern The defects of pattern, a kind of single electric machine mixed power transmission device is proposed, mechanism and brake, clutch structure are arranged by compound planetary Into shifting element coordinate, realize the pure electric Drive Mode and five kinds of hybrid power drive patterns of two gears, hybrid power Drive pattern uses the paralleling model and dynamic branch pattern of fixed speed ratio, realizes high pulling torque output and hybrid power drive pattern Starting function, the transmission device as hardware and software platform can be used for deep hybrid power system and plug-in hybrid power system.
The utility model is achieved through the following technical solutions:
The utility model includes:Reducing gear, differential mechanism, housing, the motor being arranged in housing, it is set in turn in center Second brake on axle, compound planetary row mechanism, the first brake, second clutch, the 3rd clutch and first clutch, The first connecting shaft, the second connecting shaft and the 3rd connecting shaft being connected with compound planetary row mechanism, wherein:The stator of motor is fixed with housing to be connected Connect, the rotor of motor is arranged mechanism with compound planetary by the first connecting shaft and is connected;Compound planetary row mechanism, the second connecting shaft, reductor Structure and differential mechanism are sequentially connected;First clutch between central shaft and the first connecting shaft, second clutch be located at central shaft with Between compound planetary row mechanism, the 3rd clutch is located between compound planetary row mechanism and the first connecting shaft;First brake and shell Body is fixedly connected and is connected with the first connecting shaft, and second brake is fixedly connected with the casing and is connected with the 3rd connecting shaft.
Described central shaft is connected by flywheel vibration absorber with engine.
Described compound planetary row mechanism includes:Planet carrier, sun gear, the first planetary gear, the second planetary gear, the first external tooth Circle and the second external toothing, wherein:First planetary gear and the second planetary gear are arranged on planet carrier, and are engaged respectively with sun gear; First planetary gear engages with the first external toothing, and the first planetary gear, the second planetary gear and the second external toothing engage successively.
The first described external toothing is arranged on the first connecting shaft.
The second described external toothing is arranged on the second connecting shaft.
Described second clutch is between central shaft and planet carrier.
The 3rd described clutch is between the first connecting shaft and planet carrier.
Described reducing gear includes:Reduction gearing, big retarding gear, small reduction gearing and gear connecting shaft, wherein:Subtract greatly Fast gear and small reduction gearing are arranged on gear connecting shaft, and big retarding gear engages with reduction gearing.
Described differential mechanism is provided with differential mechanism final gear, and differential mechanism final gear engages with small reduction gearing.
Described differential mechanism passes through the axis connection wheel of vehicle half.
Described first clutch, second clutch, the 3rd clutch and the first brake is using multi-sheet wet-type friction member Part.
One-way clutch structure of the described second brake using multi-disc friction element or with bidirectional locking function.
Technique effect
Compared with prior art, the utility model can realize the pure electric Drive Mode of two gears, meet low-speed big and The requirement of high speed, be particularly suitable for use in plug-in hybrid power system, moreover it is possible to is reduced to pure electric gear shift(ing) and uses;Four solid Determine the hybrid mode and dynamic branch pattern of gear, enable the engine to more gear operations, realized by dynamic branch mixed The starting function of dynamic mode is closed, avoids passing through clutch starting, reduces the design difficulty of related elements.
Brief description of the drawings
Fig. 1 is the utility model schematic diagram;
In figure:1 central shaft, 2 second connecting shafts, 3 the 3rd connecting shafts, 4 first connecting shafts, 5 planet carriers, 6 sun gears, 7 first planets Wheel, 8 second planetary gears, 9 second external toothings, 10 first external toothings, 11 reduction gearing, 12 big retarding gears, 13 small reduction gearing, 14 differential mechanism final gears, 15 gear connecting shafts, 16 wheels, 17 differential mechanisms, 18 vehicle semiaxis, 19 rotors, 20 stators, 21 shells Body, the brakes of B1 first, B2 second brakes, C1 first clutches, C2 second clutches, the clutches of C3 the 3rd, EM motors, FW Flywheel vibration absorber, ICE engines.
Embodiment
As shown in figure 1, the present embodiment includes:Reducing gear, differential mechanism 17, housing 21, the motor being arranged in housing 21 EM, central shaft 1, the second brake B2 being set in turn on central shaft 1, compound planetary row mechanism, the first brake B1, second Clutch C2, the 3rd clutch C3 and first clutch C1, the first connecting shaft 4, the second connecting shaft 2 being connected with compound planetary row mechanism With the 3rd connecting shaft 3, wherein:The stator 20 of motor is fixedly connected with housing 21, the rotor 19 of motor by the first connecting shaft 4 with it is compound Planet arrangement mechanism is connected;Compound planetary row mechanism, the second connecting shaft 2, reducing gear and differential mechanism 17 are sequentially connected;First clutch C1 is located between the connecting shaft 4 of central shaft 1 and first, and second clutch C2 is located between central shaft 1 and compound planetary row mechanism, and the 3rd Clutch C3 is located between compound planetary row mechanism and the first connecting shaft 4;First brake B1 is fixedly connected with housing 21 and with One connecting shaft 4 is connected, and second brake B2 is fixedly connected with housing 21 and is connected with the 3rd connecting shaft 3.
Described compound planetary row mechanism includes:Planet carrier 5, sun gear 6, the first planetary gear 7, the second planetary gear 8, first The external toothing 9 of external toothing 10 and second, wherein:First planetary gear 7 and the second planetary gear 8 are arranged on planet carrier 5, and respectively with too The engagement of sun wheel 6;First planetary gear 7 engages with the first external toothing 10, the first planetary gear 7, the second planetary gear 8 and the second external toothing 9 Engage successively.
Described second clutch C2 is between central shaft 1 and planet carrier 5.
The 3rd described clutch C3 is between the first connecting shaft 4 and planet carrier 5.
The first described external toothing 10 is arranged on the first connecting shaft 4.
The second described external toothing 9 is arranged on the second connecting shaft 2.
The effect of the 3rd described clutch C3 is any two element of locking compound planetary row mechanism, makes compound planetary Arrange mechanism unitary rotation.
Described reducing gear includes:Reduction gearing 11, big retarding gear 12, small reduction gearing 13 and gear connecting shaft 15, Wherein:Big retarding gear 12 and small reduction gearing 13 are arranged on gear connecting shaft 15, and big retarding gear 12 is nibbled with reduction gearing 11 Close.
Described differential mechanism 17 is provided with differential mechanism final gear 14, differential mechanism final gear 14 and small reduction gearing 13 engagements.
Described differential mechanism 17 connects wheel 16 by vehicle semiaxis 18, and the power of input is driven by vehicle semiaxis 18 Wheel 16 travels.
Described reduction gearing 11 engages with big retarding gear 12, forms the first order and slows down;Small reduction gearing 13 and differential Device final gear 14 engages, and forms the second level and slows down.
Described first clutch C1, second clutch C2, the 3rd clutch C3 and the first brake B1 is wet using multi-disc Formula friction element.
One-way clutch structures of the described second brake B2 using multi-disc friction element or with bidirectional locking function.
Described compound planetary row mechanism and the first connecting shaft 4, the second connecting shaft 2 and the 3rd connecting shaft 3 form four-axis system, pass through Cooperation as the brake and clutch of shifting element realizes that vehicle multi-gear position drives.
The present embodiment can realize two gears (EV-1~EV-2) of electric-only mode, mixed dynamic starting gear (E-CVT) and The gear (HEV-1~HEV-4) of the hybrid mode of four fixed speed ratios.
The first gear (EV-1) of described electric-only mode is that second brake B2 is individually closed, now using motor EM Driving can obtain high torque output;Second gear (EV-2) is that the 3rd clutch C3 is individually closed, and now speed increase, is straight Gear pattern is connect, each element unitary rotation of compound planetary row mechanism, motor EM rotating speeds are too high when avoiding high speed.
Described starting gear (E-CVT) is that second clutch C2 is individually closed, and realizes dynamic branch, now motor EM is defeated Go out the moment of torsion that negative torque is used for balanced engine ICE, engine ICE output shaft can work under extremely low rotating speed, realize mixed Close the starting function of dynamic mode.
Described E-CVT is relatively adapted to some extreme operating conditions, as battery be in feed condition can not pure electronic starting operating mode.
First fixation gear (HEV-1) of described hybrid mode is that first clutch C1 and second brake B2 is closed Close, now second brake B2 provides the compound planetary row moment of torsion fulcrum of mechanism, and engine ICE drives car with larger gearratio , motor EM power-assisted can be run with paralleling model simultaneously;Second fixes gear (HEV-2) as the systems of second clutch C2 and second Dynamic device B2 is closed, and now motor EM power-assisted can be run with engine ICE with paralleling model simultaneously;3rd fixes gear (HEV- 3) closed for first clutch C1 and second clutch C2, now compound planetary row mechanism unitary rotation, without phase between each element To rotating, direct gear function is realized;4th fixes gear (HEV-4) closes for second clutch C2 and the first brake B1, this When the first brake B1 the compound planetary row moment of torsion fulcrum of mechanism is provided, motor EM is lockable and is not involved in work, engine ICE Rotating speed be less than output shaft rotating speed and run with overgear, suitable for high speed operating mode.
The present embodiment realizes engine ICE and motor EM power coupling using compound planetary row mechanism.The actual row of vehicle During sailing, each power source is applied in combination from shifting element produces a variety of different mode of operations, each mode of operation and gearshift member Control logic between part is as shown in table 1.
Each mode of operation of the transmission device of table 1
Mode of operation B1 B2 C1 C2 C3
EV-1
EV-2
HEV-1
HEV-2
HEV-3
HEV-4
E-CVT
Note:〇 is open mode;● it is closure state.
Using electric-only mode the first gear (EV-1) when, second brake B2 is individually closed, now motor EM to take turns The gearratio i on sideEV1For:Wherein:i1For single planetary bevel gear planet row (sun gear 6, One planetary gear 7 and the first external toothing 10) gearratio, i2For dual planetary gear planet row (sun gear 6, the first planetary gear 7, the second row The external toothing 9 of star-wheel 8 and second) gearratio, iFDFor reduction gearing total reduction ratio, i.e. the second connecting shaft 2 to the speed reducing ratio between wheel side.
Described single planetary bevel gear planet row gearratio i1For negative value, the numerically equal to number of teeth of the first external toothing 10 divided by the sun Take turns 6 numbers of teeth;Described dual planetary gear planet row gearratio i2For on the occasion of the numerically equal to number of teeth of the second external toothing 9 divided by the sun Take turns 6 numbers of teeth.
When speed increase, to prevent motor EM rotating speeds too high, second brake B2 is opened in control, closes the 3rd clutch C3, now compound planetary row mechanism each element unitary rotation, compound planetary row mechanism is reduced without relatively rotating between each element The mechanical loss of operation, motor EM to the gearratio i for taking turns sideEV2For:iEV2=1*iFD
During using hybrid mode, individually close second clutch C2 and realize mixed dynamic starting gear (E-CVT), it is now electric Running resistance three balance on machine EM negative torques, engine ICE torque and the second connecting shaft 2, what now motor EM need to be provided puts down Weigh moment of torsion iEM_ECVTWith wheel side obtained by driving torque iwheel_ECVTFor: Wherein:TICEFor engine ICE torque.
Use hybrid mode first fix gear (HEV-1) when motor EM to take turns side gearratio for:
Use hybrid mode second fix gear (HEV-2) when motor EM to take turns side gearratio for:
Use hybrid mode the 3rd fix gear (HEV-3) when motor EM to take turns side gearratio for:iHEV3 =1*iFD
Use hybrid mode the 4th fix gear (HEV-4) when motor EM to take turns side gearratio for:
The present embodiment can be used for deep hybrid power system and plug-in hybrid power system, vdiverse in function and to have low cost excellent Gesture.
Above-mentioned specific implementation can by those skilled in the art on the premise of without departing substantially from the utility model principle and objective with Different modes carries out local directed complete set to it, and the scope of protection of the utility model is defined by claims and not by above-mentioned specific Implementation is limited, and each implementation in the range of it is by the constraint of the utility model.

Claims (10)

  1. A kind of 1. single electric machine mixed power transmission device, it is characterised in that including:Reducing gear, differential mechanism, housing, it is arranged at Motor, central shaft in housing, the second brake being set in turn on central shaft, compound planetary row mechanism, the first brake, Second clutch, the 3rd clutch and first clutch, the first connecting shaft, the second connecting shaft and the being connected with compound planetary row mechanism Three connecting shafts, wherein:The stator of motor is fixedly connected with the casing, and the rotor of motor arranges mechanism phase by the first connecting shaft and compound planetary Even;Compound planetary row mechanism, the second connecting shaft, reducing gear and differential mechanism are sequentially connected;First clutch is located at central shaft and Between one connecting shaft, second clutch is located between central shaft and compound planetary row mechanism, and the 3rd clutch is located at compound planetary row Between mechanism and the first connecting shaft;First brake is fixedly connected with the casing and is connected with the first connecting shaft, second brake and housing It is fixedly connected and is connected with the 3rd connecting shaft.
  2. 2. single electric machine mixed power transmission device according to claim 1, it is characterized in that, described central shaft passes through flywheel Shock absorber is connected with engine.
  3. 3. single electric machine mixed power transmission device according to claim 1, it is characterized in that, described compound planetary row mechanism Including:Planet carrier, sun gear, the first planetary gear, the second planetary gear, the first external toothing and the second external toothing, wherein:First planet Wheel and the second planetary gear are arranged on planet carrier, and are engaged respectively with sun gear;First planetary gear engages with the first external toothing, the One planetary gear, the second planetary gear and the second external toothing engage successively.
  4. 4. single electric machine mixed power transmission device according to claim 3, it is characterized in that, the first described external toothing is set In on the first connecting shaft.
  5. 5. single electric machine mixed power transmission device according to claim 3, it is characterized in that, the second described external toothing is set In on the second connecting shaft.
  6. 6. single electric machine mixed power transmission device according to claim 3, it is characterized in that, described second clutch is located at Between central shaft and planet carrier.
  7. 7. single electric machine mixed power transmission device according to claim 3, it is characterized in that, the 3rd described clutch is set Between planet carrier and the first connecting shaft.
  8. 8. single electric machine mixed power transmission device according to claim 1, it is characterized in that, described reducing gear includes: Reduction gearing, big retarding gear, small reduction gearing and gear connecting shaft, wherein:Big retarding gear and small reduction gearing are arranged at tooth Take turns on connecting shaft, big retarding gear engages with reduction gearing.
  9. 9. single electric machine mixed power transmission device according to claim 8, it is characterized in that, it is poor that described differential mechanism is provided with Fast device final gear, differential mechanism final gear engage with small reduction gearing.
  10. 10. single electric machine mixed power transmission device according to claim 1, it is characterized in that, described first clutch, Two clutches, the 3rd clutch and the first brake use multi-sheet wet-type friction element;Described second brake uses multi-disc Friction element or the one-way clutch structure with bidirectional locking function.
CN201720784065.9U 2017-06-30 2017-06-30 Single electric machine mixed power transmission device Active CN206968384U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720784065.9U CN206968384U (en) 2017-06-30 2017-06-30 Single electric machine mixed power transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720784065.9U CN206968384U (en) 2017-06-30 2017-06-30 Single electric machine mixed power transmission device

Publications (1)

Publication Number Publication Date
CN206968384U true CN206968384U (en) 2018-02-06

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Application Number Title Priority Date Filing Date
CN201720784065.9U Active CN206968384U (en) 2017-06-30 2017-06-30 Single electric machine mixed power transmission device

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108859729A (en) * 2018-06-28 2018-11-23 重庆大学 A kind of single motor hybrid automobile power Multiple modes coupling power drive system
CN108909432A (en) * 2018-06-28 2018-11-30 重庆大学 Single motor hybrid automobile power Multiple modes coupling power-driven system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108859729A (en) * 2018-06-28 2018-11-23 重庆大学 A kind of single motor hybrid automobile power Multiple modes coupling power drive system
CN108909432A (en) * 2018-06-28 2018-11-30 重庆大学 Single motor hybrid automobile power Multiple modes coupling power-driven system
CN108909432B (en) * 2018-06-28 2021-03-16 重庆大学 Multimode coupling power driving system of single-motor hybrid electric vehicle
CN108859729B (en) * 2018-06-28 2021-04-06 重庆大学 Multimode coupling power transmission system of single-motor hybrid electric vehicle

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