CN207790291U - Pure electric automobile and its wheel edge system - Google Patents
Pure electric automobile and its wheel edge system Download PDFInfo
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- CN207790291U CN207790291U CN201721709207.1U CN201721709207U CN207790291U CN 207790291 U CN207790291 U CN 207790291U CN 201721709207 U CN201721709207 U CN 201721709207U CN 207790291 U CN207790291 U CN 207790291U
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Abstract
The utility model is related to pure electric automobile and its wheel edge systems, it includes first motor, the second motor, planet row and wheel to take turns edge system, first motor connects the third end of planet row, the third end connects shell by the first lock-up clutch, second motor connects the first end of planet row, the first end connects shell by the second lock-up clutch, and the second end of planet row is directly connected to corresponding wheel by transmission shaft.The operating mode for taking turns edge system is more, can flexibly select suitable operating mode as needed, so that vehicle is run under suitable operating mode, reduces vehicle energy consumption.Importantly, by bi-motor and planet row drive system speed ratio can be reduced, and then reduce vehicle noise, and multiple-working mode realized by the reasonable operating status of bi-motor, reach energy consumption stabilization finally realize it is optimal.
Description
Technical field
The utility model is related to pure electric automobile and its wheel edge systems, belong to pure electric automobile wheel edge system technical field.
Background technology
With the getting worse of earth energy anxiety and atmosphere polluting problem, new-energy automobile especially pure electric automobile at
For the direction that each depot actively researches and develops, Direct wheel drives as a kind of type of drive of pure electric vehicle structure there is power to transmit circuit
Various advantages such as short, flexible arrangement, interior space are big, floor is low.
In current existing Direct wheel drives electric vehicle configuration scheme, wheel motor passes through the side that gearbox is connected with semiaxis
Case is most commonly seen.Power pass order is：Wheel motor slows down by gearbox passes to power in the semiaxis driving vehicle of rear axle
Traveling.As shown in Figure 1, power is passed to wheel 100 by gearbox 300 of the motor 200 through excessively high reduction ratio.This structure
Reduction ratio is generally relatively high, 1:10-1:Between 20, bring noise big, energy consumption cannot continue to keep under different speed operating modes
The problem of most having.The speed of the gearbox of high reduction ratio is relatively high, and the problem that the energy consumption that efficiency is brought is unstable and its noise is big is
Influence the principal element of NVH and vehicle economy.
Authorization Notice No. is that the Chinese utility model patent file of CN205022369U discloses a kind of electric wheel side electricity
Machine drive system, including a driving motor, planet row and wheel, driving motor connects wheel by planet row, although sharp
Deceleration torque can be realized with planet arrangement mechanism, still, the operating mode of this drive system is relatively simple, otherwise driving motor
The braking energy that wheel is run or recycled with motor car wheel, can not flexibly select suitable operating mode as needed, certainly,
The energy consumption of vehicle just will increase under unsuitable operating mode, cannot achieve optimal energy consumption.
Utility model content
The purpose of this utility model is to provide a kind of pure electric automobile wheel edge system, to solve existing wheel edge system without
Method selects the problem of suitable operating mode as needed.The utility model provides a kind of pure electric automobile simultaneously.
To achieve the above object, the utility model includes following technical scheme.
System schema one：This programme provides a kind of pure electric automobile wheel edge system, including Direct wheel drives system and with this
The corresponding wheel of Direct wheel drives system, the Direct wheel drives system include first motor and planet row, in the planet row too
There are one being first end in sun wheel, planet carrier and gear ring, one is second end, and one is third end, further includes the second motor, institute
It states first motor and connects the third end, the third end connects shell by the first lock-up clutch, and second motor connects
The first end is connect, the first end connects shell, the second end output connection transmission shaft, institute by the second lock-up clutch
State wheel described in transmission axis connection.
The pure electric automobile wheel edge system that this programme provides includes two motors, first motor and the second motor, this two
A motor is attached with the corresponding end of planet row respectively, also, planet row is also connected with wheel.So, first motor can be single
Vehicle can be operated alone in solely driving vehicle, the second motor, and first motor and the second motor drive vehicle simultaneously, and therefore, this is
The operating mode of system is more, can flexibly select suitable operating mode as needed, makes vehicle under suitable operating mode
Operation, reduces vehicle energy consumption.Moreover, vehicle in Brake energy recovery, also can select phase according to corresponding operating mode
The motor answered carries out energy regenerating.Moreover, when the torque needed for the system is smaller, a motor driving vehicle can be controlled, when being
When torque needed for system is larger, controls two motors and drive vehicle simultaneously, meet needed for the power of system.If in addition, first motor
It is different with the power of the second motor, in the case where vehicle is operated alone in a motor, also there are two types of different power outputs, into
One step ensures that drive system can have different power outputs, can be selected according to actual needs.Importantly, passing through
Bi-motor and planet row can reduce drive system speed ratio, and then reduce vehicle noise, and the reasonable operation shape for passing through bi-motor
State realize multiple-working mode, reach energy consumption stabilization finally realize it is optimal.
System schema two：On the basis of system schema one, the first end is sun gear, and the second end is planet
Frame, the third end are gear ring.
System schema three：On the basis of system schema one or two, the solid shafting of the first motor and the third end
It connects, first end described in the hollow axis connection of second motor, and second lock-up clutch setting is in second electricity
In the hollow shaft of machine, the transmission shaft passes through the hollow shaft of second motor to be arranged.Transmission shaft passes through the hollow of the second motor
Axis is arranged, and can reduce the axial length of system, and then can shorten the length of system, realizes system compact and integrated.
System schema four：On the basis of system schema one or two, the Direct wheel drives system includes power battery and double
Electric machine controller, the power battery are electrically connected the first motor and the second motor by Double Motor Control device.
System schema five：On the basis of system schema two, the Direct wheel drives system includes following operational mode：
Pattern is operated alone in first motor, wherein the first lock-up clutch discharges, the second lock-up clutch locking, transmission
The rotating speed of axis is the rotating speed n of corresponding wheelc, calculation formula is：
The torque of transmission shaft is the torque T of corresponding wheelc, calculation formula is：
Wherein, nrFor the rotating speed of first motor, TrFor the torque of first motor, k is the ratio of the gear ring number of teeth and the sun gear number of teeth
Value；
Pattern is operated alone in second motor, wherein the first lock-up clutch locking, the release of the second lock-up clutch, transmission
The rotating speed of axis is the rotating speed n of corresponding wheelc, calculation formula is：
The torque of transmission shaft is the torque T of corresponding wheelc, calculation formula is：
Tc=(1+k) Ts
Wherein, nsFor the rotating speed of the second motor, TsFor the torque of the second motor；
Dual-motors Driving pattern, wherein the first lock-up clutch discharges, and the second lock-up clutch release, transmission shaft turns
Speed is the rotating speed n of corresponding wheelc, calculation formula is：
The torque of transmission shaft is the torque T of corresponding wheelc, calculation formula is：
Tc=Tr+Ts。
Automobile scheme one：This programme provides a kind of pure electric automobile, including a kind of wheel edge system, the wheel edge system include
Direct wheel drives system and wheel corresponding with the Direct wheel drives system, the Direct wheel drives system includes first motor and planet
It arranges, there are one being first end in the sun gear, planet carrier and gear ring in the planet row, one is second end, and one is third
End, further includes the second motor, and the first motor connects the third end, and the third end is connected by the first lock-up clutch
Shell, second motor connect the first end, and the first end connects shell by the second lock-up clutch, and described second
End, which exports, connects transmission shaft, wheel described in the transmission axis connection.
Automobile scheme two：On the basis of automobile scheme one, the first end is sun gear, and the second end is planet
Frame, the third end are gear ring.
Automobile scheme three：On the basis of automobile scheme one or two, the solid shafting of the first motor and the third end
It connects, first end described in the hollow axis connection of second motor, and second lock-up clutch setting is in second electricity
In the hollow shaft of machine, the transmission shaft passes through the hollow shaft of second motor to be arranged.
Automobile scheme four：On the basis of automobile scheme one or two, the Direct wheel drives system includes power battery and double
Electric machine controller, the power battery are electrically connected the first motor and the second motor by Double Motor Control device.
Automobile scheme five：On the basis of automobile scheme two, the Direct wheel drives system includes following operational mode：
Pattern is operated alone in first motor, wherein the first lock-up clutch discharges, the second lock-up clutch locking, transmission
The rotating speed of axis is the rotating speed n of corresponding wheelc, calculation formula is：
The torque of transmission shaft is the torque T of corresponding wheelc, calculation formula is：
Wherein, nrFor the rotating speed of first motor, TrFor the torque of first motor, k is the ratio of the gear ring number of teeth and the sun gear number of teeth
Value；
Pattern is operated alone in second motor, wherein the first lock-up clutch locking, the release of the second lock-up clutch, transmission
The rotating speed of axis is the rotating speed n of corresponding wheelc, calculation formula is：
The torque of transmission shaft is the torque T of corresponding wheelc, calculation formula is：
Tc=(1+k) Ts
Wherein, nsFor the rotating speed of the second motor, TsFor the torque of the second motor；
Dual-motors Driving pattern, wherein the first lock-up clutch discharges, and the second lock-up clutch release, transmission shaft turns
Speed is the rotating speed n of corresponding wheelc, calculation formula is：
The torque of transmission shaft is the torque T of corresponding wheelc, calculation formula is：
Tc=Tr+Ts。
Description of the drawings
Fig. 1 is the structural schematic diagram of existing Direct wheel drives single-wheel；
Fig. 2 is the structural schematic diagram of pure electric automobile wheel edge system.
Specific implementation mode
Pure electric automobile embodiment
The present embodiment provides a kind of pure electric automobiles, including wheel edge system and other component parts, due to others
Component part is not the utility model point of the utility model, and the present embodiment just no longer illustrates, and stresses wheel side system below
System.
It includes Direct wheel drives system and wheel 11 to take turns edge system, and Direct wheel drives system includes first motor 1, the second motor 2
And planet row, wherein first motor 1 and can both have been used as generator with the second motor 2, can also be used as motor makes
With.
Planet row includes three ends, is referred to as first end, second end and third end, due to three end difference of planet row
Sun gear, planet carrier and gear ring, therefore, first end, second end and third end respectively in sun gear, planet carrier and gear ring
It is one of to correspond.First motor 1 connects third end, and third end connects shell, the second electricity by the first lock-up clutch 3
Machine 2 connects first end, and first end connects shell, second end output connection transmission shaft 12, due to this by the second lock-up clutch 4
Embodiment provides Direct wheel drives system, then, it is generally the case that transmission shaft 12 no longer by other deceleration mechanisms, but
It is directly connected to corresponding wheel, i.e. wheel 11, moreover, the drive system only drives wheel 11, other wheels are connected when different,
Wheel 11 and the longitudinally connected line of other wheels in Fig. 2 only represent vehicle frame, do not represent transmission shaft 12 and are also sequentially connected it
His wheel.Lock-up clutch is also known as lockable mechanism, can carry out locking or release.
First end, second end and third end and the correspondence of sun gear, planet carrier and gear ring be not unique, in principle always
Six kinds of correspondences are shared, different correspondences represents machine driving no-load voltage ratio difference, therefore, in the premise for meeting service requirement
Under, it can be set according to actual needs specific corresponding to relationship, in the present embodiment, provide one kind specific corresponding to relationship：
First end is sun gear 5, and second end is planet carrier 8, and third end is gear ring 7.Under normal conditions, the planetary gear and row in planet row
Carrier illustrates as a mechanism, certainly, sometimes, can also illustrate the two respectively, such as shown in Fig. 2, planet
There are planetary gear 6 and planet carrier 8 in row, in spite of illustrating respectively, the two generally refers to a mechanism.So, as shown in Fig. 2,
First motor 1 connects gear ring 7, and gear ring 7 connects shell by the first lock-up clutch 3, and the second motor 2 connects sun gear 5, the sun
Wheel 5 connects shell, the output connection transmission shaft 12 of planet carrier 8 by the second lock-up clutch 4, and transmission shaft 12 is directly connected to wheel
11, power is passed to wheel 11 by planet carrier 8 by transmission shaft 12.Sun gear 5, planetary gear 6 and gear ring 7 are nibbled by tooth
It closes, realizes machine driving.Moreover, there is first motor 1 solid shafting, the second motor 2 to have hollow shaft, then, first motor 1
Solid shafting is connect with gear ring 7, the hollow axis connection sun gear 5 of the second motor 2, and the setting of the second lock-up clutch 4 is in the second electricity
In the hollow shaft of machine 2, the transmission shaft 12 being connect with planet carrier 8 passes through the hollow shaft of the second motor 2 to be arranged.Also, such as Fig. 2 institutes
Show, planet row is located between first motor 1 and the second motor 2.
Double Motor Control device 9 controls the electronic and power generation of first motor 1 and the second motor 2.Power battery 10 gives bi-motor
Controller 9 provides driving energy；When vehicle feedback energy, Double Motor Control device 9 charges to power battery 10.
Direct wheel drives system, that is, taking turns edge system can realize that multiple drive modes, details are as follows：
Pattern is operated alone in first motor 1：
First lock-up clutch 3 discharges, 4 locking of the second lock-up clutch, and the rotating speed of transmission shaft 12 is turning for wheel 11
Fast nc, calculation formula is：
The torque of transmission shaft 12 is the torque T of wheel 11c, calculation formula is：
Wherein, TcOr the torque on planet carrier 8；TrFor the torque on gear ring 7, i.e. torsion on 1 solid shafting of first motor
Square, nrFor the rotating speed of first motor 1；K is characterized parameter, is the ratio of 7 number of teeth of gear ring and 5 number of teeth of sun gear.
When (the 25 kilometers or less) advances of vehicle low speed, 1 forward drive of first motor；When needing feedback energy, the first electricity
The positive power generation of machine 1 is charged by Double Motor Control device 9 to power battery 10.
When vehicle needs reversing, 1 reverse drive of first motor.
Pattern is operated alone in second motor 2：
First lock-up clutch, 3 locking, the release of the second lock-up clutch 4, the rotating speed of transmission shaft 12 are the rotating speed of wheel 11
nc, calculation formula is：
The torque of transmission shaft 12 is the torque T of wheel 11c, calculation formula is：
Tc=(1+k) Ts
Wherein, TsFor the torque on sun gear 5, i.e. torque in 2 hollow shaft of the second motor；nsFor turning for the second motor 2
Speed.
When vehicle needs (50-70 kilometers) of high speed to advance, 2 forward drive of the second motor.When vehicle needs high speed feedback
When energy, the positive power generation of the second motor 2 is charged by Double Motor Control device 9 to power battery 10；When climbing, the second motor 2 is just
To driving.
So vehicle is in low speed or when running at high speed, the torque needed is smaller, and system only needs a motor driving whole
Vehicle.
Dual-motors Driving pattern：
First lock-up clutch 3 discharges, the release of the second lock-up clutch 4, and the rotating speed of transmission shaft is the rotating speed of corresponding wheel
nc, calculation formula is：
The torque of transmission shaft is the torque T of corresponding wheelc, calculation formula is：
Tc=Tr+Ts
When vehicle needs (25-50 kilometers) of middling speed to advance, 1 forward drive of first motor, 2 forward drive of the second motor.
When vehicle needs middling speed feedback energy, the positive power generation of first motor 1, the positive power generation of the second motor 2, first motor 1 and second
Motor 2 is charged by Double Motor Control device 9 to power battery 10.
When system becomes high speed from low speed, need to give it the gun, then, vehicle is indicating vehicle when middling speed is advanced
Accelerate, at this time, it may be necessary to which two motors are driven simultaneously to export larger torque, ensures the power for accelerating to need.
The advantage of wheel edge system provided in this embodiment has：The speed ratio of gearbox reduces, and can reduce vehicle operation noise；
More operational modes of bi-motor are stablized vehicle energy consumption and are realized optimal.
Specific embodiment is presented above, but the utility model is not limited to described embodiment.This practicality
Novel basic ideas are the hardware configuration of above-mentioned wheel edge system, it is not limited to take turns the drive mode of edge system, not piping
Which kind of drive mode system operates in, within the protection scope of the present utility model.
Pure electric automobile wheel edge system embodiment
The present embodiment provides a kind of pure electric automobile wheel edge systems, since the wheel edge system is implemented in above-mentioned pure electric automobile
It has given and has described in detail in example, the present embodiment just repeats no more.
Claims (8)
1. a kind of pure electric automobile wheel edge system, including Direct wheel drives system and wheel corresponding with the Direct wheel drives system,
The Direct wheel drives system includes first motor and planet row, has one in the sun gear, planet carrier and gear ring in the planet row
A is first end, and one is second end, and one is third end, which is characterized in that further includes the second motor, the first motor connects
The third end is connect, the third end connects shell by the first lock-up clutch, and second motor connects the first end,
The first end connects shell, the second end output connection transmission shaft, the transmission axis connection by the second lock-up clutch
The wheel.
2. pure electric automobile wheel edge system according to claim 1, which is characterized in that the first end is sun gear, institute
It is planet carrier to state second end, and the third end is gear ring.
3. pure electric automobile wheel edge system according to claim 1 or 2, which is characterized in that the first motor it is solid
Axis is connect with the third end, first end described in the hollow axis connection of second motor, and second lock-up clutch is set
It sets in the hollow shaft of second motor, the transmission shaft passes through the hollow shaft of second motor to be arranged.
4. pure electric automobile wheel edge system according to claim 1 or 2, which is characterized in that the Direct wheel drives system packet
Power battery and Double Motor Control device are included, the power battery is electrically connected the first motor and second by Double Motor Control device
Motor.
5. a kind of pure electric automobile, including a kind of wheel edge system, the wheel edge system include Direct wheel drives system and with the wheel
The corresponding wheel of side drive system, the Direct wheel drives system include first motor and planet row, the sun in the planet row
There are one being first end in wheel, planet carrier and gear ring, one is second end, and one is third end, which is characterized in that further includes the
Two motors, the first motor connect the third end, and the third end connects shell by the first lock-up clutch, and described the
Two motors connect the first end, and the first end connects shell, the second end output connection by the second lock-up clutch
Transmission shaft, wheel described in the transmission axis connection.
6. pure electric automobile according to claim 5, which is characterized in that the first end is sun gear, the second end
For planet carrier, the third end is gear ring.
7. pure electric automobile according to claim 5 or 6, which is characterized in that the solid shafting of the first motor with it is described
Third end connects, first end described in the hollow axis connection of second motor, and second lock-up clutch is arranged described
In the hollow shaft of second motor, the transmission shaft passes through the hollow shaft of second motor to be arranged.
8. pure electric automobile according to claim 5 or 6, which is characterized in that the Direct wheel drives system includes power electric
Pond and Double Motor Control device, the power battery are electrically connected the first motor and the second motor by Double Motor Control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721709207.1U CN207790291U (en) | 2017-12-11 | 2017-12-11 | Pure electric automobile and its wheel edge system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721709207.1U CN207790291U (en) | 2017-12-11 | 2017-12-11 | Pure electric automobile and its wheel edge system |
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| Publication Number | Publication Date |
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| CN207790291U true CN207790291U (en) | 2018-08-31 |
Family
ID=63283556
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| CN201721709207.1U Active CN207790291U (en) | 2017-12-11 | 2017-12-11 | Pure electric automobile and its wheel edge system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895611A (en) * | 2017-12-11 | 2019-06-18 | 郑州宇通客车股份有限公司 | A kind of pure electric automobile and its wheel edge system |
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- 2017-12-11 CN CN201721709207.1U patent/CN207790291U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895611A (en) * | 2017-12-11 | 2019-06-18 | 郑州宇通客车股份有限公司 | A kind of pure electric automobile and its wheel edge system |
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| CP03 | Change of name, title or address |
Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |