CN207449625U - Double electric machine double row planetary gear electric driver - Google Patents
Double electric machine double row planetary gear electric driver Download PDFInfo
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- CN207449625U CN207449625U CN201720753170.6U CN201720753170U CN207449625U CN 207449625 U CN207449625 U CN 207449625U CN 201720753170 U CN201720753170 U CN 201720753170U CN 207449625 U CN207449625 U CN 207449625U
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Abstract
The utility model is related to a kind of double electric machine double row planetary gear electric driver, including 3, No. two motors 7 of No.1 motor, front-seat planetary wheeling mechanism 5, heel row planetary wheeling mechanism 9, the first brake 1, second brake 4 and clutch 14；The utility model No.1 electric machine main shaft uses hollow shaft, greatly alleviates the weight of system and simplifies the structure of system, so that the layout of the utility model device is compacter, drive efficiency higher；According to the demand of vehicle in varied situations, just vehicle can be made to be switched to different operating modes by the state for controlling Clutch and brake, meet dynamic property of the vehicle under different operating modes, and drastically increase the efficiency of motor.
Description
Technical field：
The utility model is related to a kind of electricity suitable for the car of various pure electric vehicles, car and other types of vehicle to drive
Dynamic device, particularly a kind of double electric machine double row planetary gear electric driver.
Background technology：
The pure electric vehicle power system of mainstream is carried out mainly using single motor, main reducing gear scheme by motor at present
Stepless time adjustment.This dynamical system mechanism is simple, be easy to general layout, control is easier, and manufacture cost is relatively low.But
It is so that drive-train efficiency is relatively low using single motor and simple retarder.
The Chinese patent of Application No. 201210024534.9 discloses a kind of bi-motor coupling speed change gear, by two electricity
Machine, one group of simple planetary arrangement, one group of fixed axis gear mechanism, two clutches and a lock device composition.The device can
To realize the work of bi-motor torque coupling and motor rotating speed coupling operational and fixed no-load voltage ratio work Three models, vehicle can be met
Different driving requirements and motor utilization rate is also higher.But switching needs same time control between each operating mode of the device
Rotating speed coupled clutch processed, torque coupling Clutch and brake two elements therein, linkage control device and manipulation are multiple
It is miscellaneous.In addition, deficiency of its device there is also complicated in mechanical structure.
The Chinese patent of Application No. 201410584883.5 discloses a kind of double electric machine double row planetary gear power coupling driving
Device, by two motors, three lock devices, two groups of planet rows, two retarder compositions.The device can realize single motor list
Solely multiple operating modes such as driving, the driving of bi-motor torque coupling and motor rotating speed coupling driving, and using retarder
Torque during device increase single motor driving starting, solves the problems, such as to be short of power during single motor driving.And each work
Switching between operation mode only needs to control one in three lock devices, compensates for linkage control device and manipulation is complicated not
Foot.But the apparatus structure is excessively complicated, and between No.1 gear ring and No. two gear rings set shaft coupling this just make the device
Structure is more complicated, and there are energy transmission loss and noises.In addition, the No.1 motor of the device, No. two motors are adopted
Arrange that this makes the stability of the device inadequate with simultaneously axis.
The content of the invention：
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of double electric machine double row planetary gear electricity and drive
Dynamic device, the double electric machine double row planetary gear electric driver can make vehicle while a variety of driving cycles are met, electricity
Machine can also always work at high efficient area, take into account dynamic property and economy.
The utility model double electric machine double row planetary gear electric driver, it is characterised in that：Including 3, No. two motors of No.1 motor
7th, front-seat planetary wheeling mechanism 5, heel row planetary wheeling mechanism 9, the first brake 1, second brake 4 and clutch 14；It is wherein front-seat
Planetary gear mechanism 5 is by front-seat sun gear 16, front-seat planetary gear set 6, double planet wheel rows of mixing planet carrier 8 and the front row being connected in housing 2
Gear ring forms, and heel row planetary gear mechanism 9 is by heel row sun gear 12, heel row planetary gear set 11, double planet wheel rows of mixing planet carrier 8 and heel row
Gear ring 10 forms；Wherein the rotor of No.1 motor is connected through hollow shaft 15 with front-seat sun gear 16, and No. two rotors are through the sun
Wheel main shaft 13 is connected with heel row sun gear 12, is carried out on the left of heel row sun gear main shaft by the first brake 1 being fixed on housing
Braking, No.1 motor 3 and No. two 7 same axiss of rotation of motor are arranged in the arranged on left and right sides of front-seat planetary gear mechanism 5, and
No. two motors are located between front-seat planetary gear mechanism 5 and heel row planetary gear mechanism 9, are set between No.1 motor and No. two motors
Have a clutch 14, and clutch is arranged in front-seat 5 right side of planetary gear machine, respectively with front-seat sun gear and heel row sun gear main shaft
It is connected, double planet wheel rows of mixing planet carrier 8 is connected respectively with forward and backward seniority among brothers and sisters star-wheel group, and rear ring gear 10 is connected with power output shaft 17, moves
Power output shaft imparts power to drive axle 18.
Further, above-mentioned No.1 electric machine main shaft uses hollow shaft.
Further, the kinematical equation of above-mentioned front-seat planetary gear mechanism is expressed as：ns1+k1nr1-(1+ k1)nc1=0,
Wherein, ns1、nr1And nc1The rotating speed of sun gear, gear ring and planet carrier in respectively front-seat planetary gear mechanism, k1It is preceding seniority among brothers and sisters
The characteristic parameter of star gear mechanism, for the gear ratio of front-seat gear ring and front-seat sun gear, i.e. k1=Zr1/Zs1, it is assumed that k1=2, heel row
The kinematical equation of planetary gear mechanism is expressed as：ns2+k2nr2-(1+ k2)nc2=0, wherein, ns2、nr2And nc2Respectively heel row
The rotating speed of sun gear, gear ring and planet carrier in planetary gear mechanism, k2It is the characteristic parameter of heel row planetary gear mechanism, after being
The gear ratio of toothrow circle and heel row sun gear, i.e. k2=Zr2/Zs2, it is assumed that k2=1.5。
The method of work of the utility model double electric machine double row planetary gear electric driver,
Single electrical machine working mode, single electrical machine working mode are divided into single motor drive mode and single electricity
Mechanism energy regeneration mode, power interruption under the single motor braking energy regeneration pattern pass through the inertia that vehicle travels
Carry out passing power；Under single motor drive mode, the first brake locking, second brake release, clutch separation；It should
Gearratio i under pattern1=ns1/nr2=(1+k1)k2/(1+k2)=1.8, which is suitble to vehicle low speed traveling in, at this
Under pattern, driving force is through No.1 motor, front-seat planetary gear set, double planet wheel rows of mixing planet carrier, heel row planetary gear set, rear ring gear, dynamic
Power output shaft finally transfers power to drive axle；Under single motor braking energy regeneration pattern, No.1 motor terminates dynamic
Power exports, and the state of brakes and clutches is identical with single motor drive mode, power transmission line and single motor
For drive pattern on the contrary, No.1 motor becomes generator at this time, it is vehicle that generated AC energy is converted into direct current through inverter
Supplying cell charges.
Further, single No. two electrical machine working modes, single No. two electrical machine working modes are divided into single No. two motor drive modes
With single No. two motor braking regeneratings, power interruption under single No. two motor braking regeneratings is travelled by vehicle
Inertia carry out passing power, under single No. two motor drive modes, second brake locking, the release of the first brake, clutch
It separates, the gearratio i under the pattern2=ns2/nr2=-k2=-1.5, wherein "-" represent ns2、nr2Direction of rotation on the contrary, can pass through
The steering for turning to control power output shaft of No. two motors of control, which is suitble to vehicle to be travelled with medium speed, in the mould
Under formula, through No. two motors, heel row sun gear, heel row planetary gear set, rear ring gear, power output shaft, most power passes driving force at last
It is delivered to drive axle；Under single No. two motor braking energy regeneration patterns, No. two motors terminate power output, brakes and clutches
State and single No. two motor drive modes it is identical, power transmission line is with single No. two motor drive modes on the contrary, No. two at this time
Motor becomes generator, and generated AC energy is converted into direct current through inverter charges for vehicle supplying cell.
Further, bi-motor torque coupling operating mode, bi-motor torque coupling operating mode are divided into bi-motor torque
Coupling driving pattern and bi-motor torque coupling braking energy regeneration pattern, the bi-motor torque coupling braking energy regeneration pattern
Lower power interruption, the inertia travelled by vehicle is come passing power；Under bi-motor torque coupling drive pattern, the first brake
Release, second brake release, clutch combine, and No.1 motor is worked at the same time with No. two motors at this time and rotating speed is equal, the mould
Gearratio i under formula3=ns1(ns2)/nr2=-(1+k1)k2/(k1-k2)=- 9, wherein "-" represent ns1(ns2)、nr2Direction of rotation
On the contrary, the steering of power output shaft can be controlled by controlling the steering of motor, which is suitble to vehicle start or low speed
Climbing traveling or load-carrying travel, and No.1 motor driving force is divided into two-way transmission in this mode, and transfer route is respectively：No.1 electricity
Machine, front-seat sun gear, front-seat planetary gear set, double planet wheel rows of mixing planet carrier, rear planetary gear set, rear ring gear, power output shaft, driving
Bridge；No.1 motor, clutch, heel row sun gear main shaft, heel row sun gear, heel row planetary gear set, rear ring gear, power output
Axis, drive axle；No. two motor driving forces are also classified into two-way transmission in this mode, and transfer route is respectively：No. two motors, heel row
Sun gear main shaft, clutch, front-seat sun gear, front-seat planetary gear set, double planet wheel rows of mixing planet carrier, heel row planetary gear set, rear toothrow
Circle, power output shaft, drive axle；No. two motors, heel row sun gear main shaft, heel row sun gear, heel row planetary gear set, rear toothrow
Circle, power output shaft, drive axle；Under bi-motor torque coupling braking energy regeneration pattern, No.1 motor, No. two motors terminate
Power output, the state of brakes and clutches is identical with bi-motor torque coupling drive pattern, power transmission line and double electricity
Machine torque coupling drive pattern is on the contrary, No.1 motor, No. two motors become generator at this time, by generated AC energy through inverse
Become device and be converted into direct current as the charging of vehicle supplying cell.
Further, motor rotating speed coupling work mode, motor rotating speed coupling work mode are divided into motor rotating speed
Coupling driving pattern and motor rotating speed coupling braking energy regeneration pattern, motor rotating speed coupling braking energy regeneration pattern
Lower power interruption, the inertia travelled by vehicle is come passing power, under motor rotating speed coupling driving pattern, the first brake
Release, second brake discharge, clutch separation, and No.1 motor is worked at the same time with No. two motors at this time, the input under the pattern
Relation between rotating speed and output speed is：nr2=5/9ns1-2/3ns2, wherein "-" expression ns2Direction of rotation and ns1It on the contrary, can
To realize the addition of input motor speed by controlling the steering of No. two motors, which represents to couple in motor rotating speed
The 5/9 of No.1 motor speed is added with the 2/3 of No. two motor speeds as output speed under drive pattern, which is suitble to vehicle
It runs at high speed, the power transmission line of No.1 motor is in this mode：No.1 motor, front-seat sun gear, front-seat planetary gear set,
Double planet wheel rows of mixing planet carrier, heel row planetary gear set, rear ring gear, power output shaft, drive axle；No. two motors is dynamic in this mode
Power transfer route is：No. two motors, heel row sun gear, heel row planetary gear set, rear ring gear, power output shaft, drive axle；Double
Under motor speed coupling braking energy regeneration pattern, No.1 motor, No. two motors terminate power output, brakes and clutches
State is identical with motor rotating speed coupling driving pattern, power transmission line and bi-motor torque coupling drive pattern on the contrary, this
When No.1 motor, No. two motors become generator, generated AC energy is converted into direct current through inverter powers for vehicle
Battery charges.
The utility model No.1 electric machine main shaft uses hollow shaft, greatly alleviates the weight of system and simplifies system
Structure, so that the layout of the utility model device is compacter, drive efficiency higher；According to the need of vehicle in varied situations
It asks, just vehicle can be made to be switched to different operating modes by the state for controlling Clutch and brake, meet vehicle and exist
Dynamic property under different operating modes, and drastically increase the efficiency of motor；Using handling ease, double planet wheel rows of mixing simple in structure
Planet carrier reduces production cost, and improves the stability of system；No. two motors are arranged in pre-planetary gear mechanism with after
Between planetary gear mechanism, system space utilization rate is improved, the structure for making system is compacter, and this layout greatly contracts
Short the distance between motor and coupled sun gear further reduce the loss of power transmission.
Description of the drawings：
Fig. 1 is the principle organigram of the utility model；
Fig. 2 is the principle organigram of the utility model single electrical machine working mode；
Fig. 3 is the principle organigram of No. two electrical machine working modes of the utility model list；
Fig. 4 is the principle organigram of the utility model bi-motor torque coupling operating mode；
Fig. 5 is the principle organigram of the utility model motor rotating speed coupling work mode.
Specific embodiment：
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
The utility model double electric machine double row planetary gear electric driver includes 3, No. two motors 7 of No.1 motor, front-seat planetary gear
Mechanism 5, heel row planetary wheeling mechanism 9, the first brake 1, second brake 4 and clutch 14；Wherein front-seat planetary gear mechanism 5
It is made of front-seat sun gear 16, front-seat planetary gear set 6, double planet wheel rows of mixing planet carrier 8 and the front-seat gear ring that is connected in housing 2, heel row
Planetary gear mechanism 9 is made of heel row sun gear 12, heel row planetary gear set 11, double planet wheel rows of mixing planet carrier 8 and rear ring gear 10；Its
The rotor of middle No.1 motor is connected through hollow shaft 15 with front-seat sun gear 16, and No. two rotors are through sun gear main shaft 13 and heel row
Sun gear 12 is connected, and is braked on the left of heel row sun gear main shaft by the first brake 1 being fixed on housing, No.1 motor 3
With No. two 7 same axiss of rotation of motor, the arranged on left and right sides of front-seat planetary gear mechanism 5 is arranged in, and before No. two motors are located at
Between rows of planetary gear mechanism 5 and heel row planetary gear mechanism 9, clutch 14 is equipped between No.1 motor and No. two motors, and
Clutch is arranged in front-seat 5 right side of planetary gear machine, is connected respectively with front-seat sun gear and heel row sun gear main shaft, double planet wheel rows of mixing
Planet carrier 8 is connected respectively with forward and backward seniority among brothers and sisters star-wheel group, and rear ring gear 10 is connected with power output shaft 17, and power output shaft will be dynamic
Power passes to drive axle 18.
Further, above-mentioned No.1 electric machine main shaft uses hollow shaft.
Further, the kinematical equation of above-mentioned front-seat planetary gear mechanism is expressed as：ns1+k1nr1-(1+ k1)nc1=0,
Wherein, ns1、nr1And nc1The rotating speed of sun gear, gear ring and planet carrier in respectively front-seat planetary gear mechanism, k1It is preceding seniority among brothers and sisters
The characteristic parameter of star gear mechanism, for the gear ratio of front-seat gear ring and front-seat sun gear, i.e. k1=Zr1/Zs1, it is assumed that k1=2, heel row
The kinematical equation of planetary gear mechanism is expressed as：ns2+k2nr2-(1+ k2)nc2=0, wherein, ns2、nr2And nc2Respectively heel row
The rotating speed of sun gear, gear ring and planet carrier in planetary gear mechanism, k2It is the characteristic parameter of heel row planetary gear mechanism, after being
The gear ratio of toothrow circle and heel row sun gear, i.e. k2=Zr2/Zs2, it is assumed that k2=1.5。
The method of work of the utility model double electric machine double row planetary gear electric driver,
（1）Single electrical machine working mode, single electrical machine working mode are divided into single motor drive mode and single
Number motor braking energy regeneration pattern（Power interruption under the pattern, the inertia travelled by vehicle is come passing power）.Single
Under number motor drive mode, the first brake locking, second brake release, clutch separation.According to planetary gear mechanism
Kinematical equation, through deriving, the gearratio i under the pattern1=ns1/nr2=(1+k1)k2/(1+k2)=1.8, the pattern are suitble to vehicle
The low speed traveling in.In this mode, driving force is through No.1 motor, front-seat planetary gear set, double planet wheel rows of mixing planet carrier, heel row
Planetary gear set, rear ring gear, power output shaft, finally transfer power to drive axle.The state of brakes and clutches and
Power transmission line is as shown in Figure 2.Under single motor braking energy regeneration pattern, No.1 motor terminates power output, system
Dynamic device is identical with single motor drive mode with the state of clutch, power transmission line and single motor drive mode phase
Instead.No.1 motor becomes generator at this time, and generated AC energy is converted into direct current for vehicle supplying cell through inverter
It charges.
（2）Single No. two electrical machine working modes, single No. two electrical machine working modes are divided into single No. two motor drive modes and single two
Number motor braking regenerating（Power interruption under the pattern, the inertia travelled by vehicle is come passing power）.No. two single
Under motor drive mode, second brake locking, the release of the first brake, clutch separation.According to the fortune of planetary gear mechanism
It is dynamic to learn equation, through deriving, the gearratio i under the pattern2=ns2/nr2=-k2=-1.5（"-" represents ns2、nr2Direction of rotation on the contrary,
The steering of power output shaft can be controlled by controlling the steering of No. two motors）, which is suitble to vehicle with medium speed row
It sails.In this mode, driving force through No. two motors, heel row sun gear, heel row planetary gear set, rear ring gear, power output shaft most
Drive axle is transferred power to eventually.The state and power transmission line of brakes and clutches are as shown in Figure 3.In single No. two electricity
Under mechanism energy regeneration mode, No. two motors terminate power output, and the state of brakes and clutches is driven with single No. two motors
Dynamic model formula is identical, and power transmission line is opposite with single No. two motor drive modes.No. two motors become generator at this time, will be produced
Raw AC energy is converted into direct current through inverter and charges for vehicle supplying cell.
（3）Bi-motor torque coupling operating mode, bi-motor torque coupling operating mode are divided into the drive of bi-motor torque coupling
Dynamic model formula and bi-motor torque coupling braking energy regeneration pattern（Power interruption under the pattern, by vehicle travel inertia come
Passing power）.Under bi-motor torque coupling drive pattern, the release of the first brake, second brake release, clutch knot
It closes.No.1 motor is worked at the same time with No. two motors at this time and rotating speed is equal.According to the equation of motion of planetary gear mechanism, through pushing away
, the gearratio i under the pattern3=ns1(ns2)/nr2=-(1+k1)k2/(k1-k2)=-9（"-" represents ns1(ns2)、nr2Rotation side
To on the contrary, the steering of power output shaft can be controlled by controlling the steering of motor）, which is suitble to vehicle start or low
Speed climbing traveling or load-carrying traveling.No.1 motor driving force is divided into two-way transmission in this mode, and transfer route is respectively：No.1
Motor, front-seat sun gear, front-seat planetary gear set, double planet wheel rows of mixing planet carrier, rear planetary gear set, rear ring gear, power output shaft, drive
Dynamic bridge；No.1 motor, clutch, heel row sun gear main shaft, heel row sun gear, heel row planetary gear set, rear ring gear, power output
Axis, drive axle.No. two motor driving forces are also classified into two-way transmission in this mode, and transfer route is respectively：No. two motors, heel row
Sun gear main shaft, clutch, front-seat sun gear, front-seat planetary gear set, double planet wheel rows of mixing planet carrier, heel row planetary gear set, rear toothrow
Circle, power output shaft, drive axle；No. two motors, heel row sun gear main shaft, heel row sun gear, heel row planetary gear set, rear toothrow
Circle, power output shaft, drive axle.The state and power transmission line of brakes and clutches are as shown in Figure 4.Turn in bi-motor
Under square coupling braking energy regeneration pattern, No.1 motor, No. two motors terminate power outputs, the state of brakes and clutches with
Bi-motor torque coupling drive pattern is identical, and power transmission line is opposite with bi-motor torque coupling drive pattern.No.1 at this time
Motor, No. two motors become generator, and generated AC energy is converted into direct current through inverter fills for vehicle supplying cell
Electricity.
（4）Motor rotating speed coupling work mode, motor rotating speed coupling work mode are divided into motor rotating speed coupling and drive
Dynamic model formula and motor rotating speed coupling braking energy regeneration pattern（Power interruption under the pattern, by vehicle travel inertia come
Passing power）.Under motor rotating speed coupling driving pattern, the release of the first brake, second brake release, clutch point
From.No.1 motor is worked at the same time with No. two motors at this time, according to the equation of motion of planetary gear mechanism, through pushing over, under the pattern
Input speed and output speed between relation be：nr2=5/9ns1-2/3ns2("-" represents ns2Direction of rotation and ns1On the contrary,
The addition of input motor speed can be realized by controlling the steering of No. two motors), which represents in motor rotating speed
The 5/9 of No.1 motor speed is added with the 2/3 of No. two motor speeds as output speed under coupling driving pattern, which is suitble to
High vehicle speeds.The power transmission line of No.1 motor is in this mode：No.1 motor, front-seat sun gear, preceding rows of planetary
Wheel group, double planet wheel rows of mixing planet carrier, heel row planetary gear set, rear ring gear, power output shaft, drive axle.No. two electricity in this mode
The power transmission line of machine is：No. two motors, heel row sun gear, heel row planetary gear set, rear ring gear, power output shaft, driving
Bridge.The state and power transmission line of brakes and clutches are as shown in Figure 5.Braking energy regeneration is coupled in motor rotating speed
Under pattern, No.1 motor, No. two motors terminate power output, state and the motor rotating speed coupling driving of brakes and clutches
Pattern is identical, and power transmission line is opposite with bi-motor torque coupling drive pattern.No.1 motor, No. two motors become to send out at this time
Generated AC energy is converted into direct current through inverter and charged for vehicle supplying cell by motor.
The utility model No.1 electric machine main shaft uses hollow shaft, greatly alleviates the weight of system and simplifies system
Structure, so that the layout of the utility model device is compacter, drive efficiency higher；According to the need of vehicle in varied situations
It asks, just vehicle can be made to be switched to different operating modes by the state for controlling Clutch and brake, meet vehicle and exist
Dynamic property under different operating modes, and drastically increase the efficiency of motor；Using handling ease, double planet wheel rows of mixing simple in structure
Planet carrier reduces production cost, and improves the stability of system；No. two motors are arranged in pre-planetary gear mechanism with after
Between planetary gear mechanism, system space utilization rate is improved, the structure for making system is compacter, and this layout greatly contracts
Short the distance between motor and coupled sun gear further reduce the loss of power transmission.
The above is only the preferred embodiment of the present invention, it is all done according to present utility model application the scope of the claims it is equal
It Deng variation and modifies, should all belong to the covering scope of the utility model.
Claims (3)
1. a kind of double electric machine double row planetary gear electric driver, it is characterised in that：Including No.1 motor (3), No. two motors (7), preceding
Rows of planetary gear mechanism (5), heel row planetary gear mechanism (9), the first brake (1), second brake (4) and clutch
(14)；Wherein front-seat planetary gear mechanism (5) is by front-seat sun gear (16), front-seat planetary gear set (6), double planet wheel rows of mixing planet carrier
(8) and be connected in housing (2) front-seat gear ring composition, heel row planetary gear mechanism (9) is by heel row sun gear (12), rear rows of planetary
Wheel group (11), double planet wheel rows of mixing planet carrier (8) and rear ring gear (10) composition；Wherein the rotor of No.1 motor through hollow shaft (15) with
Front-seat sun gear (16) is connected, and No. two rotors are connected through sun gear main shaft (13) with heel row sun gear (12), the heel row sun
It is braked on the left of wheel main shaft by the first brake (1) being fixed on housing, No.1 motor (3) and No. two motors (7) are the same as returning
Shaft axis are arranged in the arranged on left and right sides of front-seat planetary gear mechanism (5), and No. two motors are located at front-seat planetary gear machine
Between structure (5) and heel row planetary gear mechanism (9), clutch (14), and clutch are equipped between No.1 motor and No. two motors
It is arranged on the right side of front-seat planetary gear mechanism (5), is connected respectively with front-seat sun gear and heel row sun gear main shaft, double-planet seniority among brothers and sisters
Carrier (8) is connected respectively with forward and backward seniority among brothers and sisters star-wheel group, and rear ring gear (10) is connected with power output shaft (17), power output shaft
Impart power to drive axle (18).
2. double electric machine double row planetary gear electric driver according to claim 1, it is characterised in that：The No.1 electric machine main shaft
Using hollow shaft.
3. double electric machine double row planetary gear electric driver according to claim 1, it is characterised in that：The front row planetary gear
The kinematical equation of mechanism is expressed as：ns1+k1nr1-(1+ k1)nc1=0, wherein, ns1、nr1And nc1Respectively front-seat planetary gear
The rotating speed of sun gear, gear ring and planet carrier in mechanism, k1The characteristic parameter of front-seat planetary gear mechanism, for front-seat gear ring with
The gear ratio of front-seat sun gear, i.e. k1=Zr1/Zs1, it is assumed that k1=2, the kinematical equation of heel row planetary gear mechanism is expressed as：ns2+
k2nr2-(1+ k2)nc2=0, wherein, ns2、nr2And nc2Sun gear, gear ring and planet carrier respectively in heel row planetary gear mechanism
Rotating speed, k2It is the characteristic parameter of heel row planetary gear mechanism, for the gear ratio of rear ring gear and heel row sun gear, i.e. k2=Zr2/
Zs2, it is assumed that k2=1.5。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720753170.6U CN207449625U (en) | 2017-06-27 | 2017-06-27 | Double electric machine double row planetary gear electric driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720753170.6U CN207449625U (en) | 2017-06-27 | 2017-06-27 | Double electric machine double row planetary gear electric driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207449625U true CN207449625U (en) | 2018-06-05 |
Family
ID=62246575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720753170.6U Active CN207449625U (en) | 2017-06-27 | 2017-06-27 | Double electric machine double row planetary gear electric driver |
Country Status (1)
| Country | Link |
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| CN (1) | CN207449625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113085519A (en) * | 2021-05-06 | 2021-07-09 | 华中科技大学 | Dual-motor electric automobile driving system |
| US11827091B2 (en) | 2018-07-04 | 2023-11-28 | Byd Company Limited | Vehicle transmission apparatus and vehicle |
-
2017
- 2017-06-27 CN CN201720753170.6U patent/CN207449625U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11827091B2 (en) | 2018-07-04 | 2023-11-28 | Byd Company Limited | Vehicle transmission apparatus and vehicle |
| CN113085519A (en) * | 2021-05-06 | 2021-07-09 | 华中科技大学 | Dual-motor electric automobile driving system |
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