CN210390807U

CN210390807U - Range-extending driving system and vehicle with same

Info

Publication number: CN210390807U
Application number: CN201921198480.1U
Authority: CN
Inventors: 朱新明; 顾启凡; 刘翊琳; 刘少华
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-04-24
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses an increase journey actuating system and have its vehicle, increase journey actuating system and include: an engine; the input end of the speed increasing mechanism is in power coupling connection with the output end of the engine; the input end of the generator is in power coupling connection with the output end of the speed increasing mechanism; a drive motor; the input end of the planetary gear mechanism is in power coupling connection with the output end of the driving motor; the output end of the planetary gear mechanism is used for outputting power of the range-increasing driving system, wherein the speed increasing mechanism and the planetary gear mechanism are arranged in an overlapped mode in the axial direction and are spaced in the radial direction. According to the utility model discloses an increase journey actuating system, through acceleration mechanism, planetary gear mechanism's setting, make and increase journey actuating system's axial dimensions less, conveniently increase journey actuating system and arrange on the vehicle, and simple structure, compactness.

Description

Range-extending driving system and vehicle with same

Technical Field

The utility model belongs to the technical field of the vehicle manufacturing, particularly, relate to an increase journey actuating system and have its vehicle.

Background

In the related art, the axial size of a range extending system of a vehicle is large, the occupied space on the vehicle is large, the arrangement is inconvenient, a transmission chain is long, and the power transmission efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an extended range driving system, which has a small axial length and a compact structure, and is convenient to arrange on a vehicle.

According to the utility model discloses increase journey actuating system, include: an engine; the input end of the speed increasing mechanism is in power coupling connection with the output end of the engine; the input end of the generator is in power coupling connection with the output end of the speed increasing mechanism; a drive motor; the input end of the planetary gear mechanism is in power coupling connection with the output end of the driving motor; the output end of the planetary gear mechanism is used for outputting the power of the range-extended driving system, wherein the speed increasing mechanism and the planetary gear mechanism are arranged in an overlapping mode in the axial direction and are spaced in the radial direction.

According to the utility model discloses an increase journey actuating system, through acceleration mechanism, planetary gear mechanism's setting, make and increase journey actuating system's axial dimensions less, conveniently increase journey actuating system and arrange on the vehicle, and simple structure, compactness.

According to the utility model discloses a range drive system increases, the generator with driving motor parallel arrangement.

According to the utility model discloses a range drive system increases of embodiment, the generator with driving motor installs in same box.

According to the utility model discloses a range drive system increases, the engine is located one side of planetary gear mechanism, the generator with driving motor is located planetary gear mechanism's opposite side.

According to the utility model discloses a range drive system increases, planetary gear mechanism includes sun gear, planet carrier and ring gear, the sun gear with driving motor power coupling connects, the ring gear is used for being connected with differential mechanism's input power coupling, the planet carrier locking.

According to the utility model discloses a range drive system increases, the ring gear has the external tooth, the external tooth is used for meshing with final drive driven gear.

According to the utility model discloses a range drive system increases, speed increasing mechanism includes engine output gear, generator input gear, engine output gear with the output shaft of engine links to each other, generator input gear with the input shaft of generator links to each other, engine output gear with generator input gear power coupling is connected, just engine output gear's the number of teeth is greater than generator input gear's the number of teeth.

According to the utility model discloses a range extending driving system, speed increasing mechanism still includes the idler, the idler meshing is in engine output gear with between the generator input gear.

The utility model also provides a vehicle, include according to the utility model discloses an arbitrary embodiment increase journey actuating system.

The vehicle and the range-extended driving system have the same advantages compared with the prior art, and the detailed description is omitted.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a range-extended drive system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.

Reference numerals:

a vehicle 1000; a differential 200; a main reducer driven gear 201;

an engine 1; a generator 2; a drive motor 3;

a planetary gear mechanism 5; a sun gear 511; a planet carrier 512; a ring gear 513;

a speed increasing mechanism 6; an engine output gear 61, an idle gear 62, a generator input gear 63; and a box body 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

An extended range drive system according to an embodiment of the present invention is described below with reference to fig. 1.

According to the utility model discloses an increase journey actuating system includes: the device comprises an engine 1, a speed increasing mechanism 6, a generator 2, a driving motor 3 and a planetary gear mechanism 5.

The utility model discloses in, the equal parallel arrangement of output shaft of engine 1, the input shaft of generator 2 and driving motor 3's output shaft, if do not have the special explanation, "axial" in the utility model is the extending direction of the axis of rotation of engine 1's output shaft, generator 2's input shaft and driving motor 3's output shaft, "radial" is the radial of engine 1's output shaft, generator 2's input shaft and driving motor 3's output shaft.

The input end of the speed increasing mechanism 6 is in power coupling connection with the output end of the engine 1, the input end of the generator 2 is in power coupling connection with the output end of the speed increasing mechanism 6, the speed increasing mechanism 6 is used for increasing the rotating speed of the engine 1 and transmitting the rotating speed to the generator 2 so as to improve the generating efficiency, the generated power of the generator 2 can be transmitted to a power battery of the vehicle 1000, the driving battery is used for driving the driving motor 3 to rotate so that the vehicle 1000 runs, the input end of the planetary gear mechanism 5 is in power coupling connection with the output end of the driving motor 3, and the output end of the planetary gear mechanism 5 is used for outputting the power of the range-increasing driving system, wherein the speed increasing mechanism 6 and the planetary gear mechanism.

Therefore, in the running process of the vehicle 1000, when the electric quantity of the battery is consumed to a certain degree, the range-extended driving system is started, the engine 1 works, the speed-increasing mechanism 6 increases the speed of the power provided by the engine 1 and transmits the power to the generator 2, so that the generator 2 generates power to charge the power battery, the power battery drives the driving motor 3, and the driving motor 3 outputs the power through the speed reduction and torque increase of the planetary gear mechanism 5 to provide the driving of the whole vehicle.

Because all the gears in the planetary gear mechanism 5 are meshed with each other all the time, the friction and the abrasion are small, the service life is long, the structure of the planetary gear mechanism 5 is simple and compact, the load is distributed to a plurality of teeth, the strength is high, and therefore the range-extended driving system has corresponding advantages.

Among the correlation technique, the input of generator and the speed change mechanism of motor all arrange along the axial in order, and axial dimension is big, thereby lead to installing the generator, the box of motor is too big, be difficult for arranging in limited cabin space, and power transmission mechanism and speed change mechanism arrange too dispersion, be difficult for assembly and maintenance, the utility model discloses in, speed increasing mechanism 6 overlaps the setting with planetary gear mechanism 5 in the axial, and along radial spaced apart, make full use of is radial upward space, makes the overall dimension of increasing the journey actuating system less, and the axial length of increasing the journey actuating system is less, is convenient for increase the journey actuating system and arrange on the vehicle, and speed increasing mechanism 6 and planetary gear mechanism 5 arrange the position comparatively concentrated, thereby be convenient for the assembly and the later maintenance of this department's part.

According to the utility model discloses an increase journey actuating system, through the setting of speed increasing mechanism 6, planetary gear mechanism 5, make the axial dimensions who increases journey actuating system less, conveniently increase the arrangement of journey actuating system on vehicle 1000, and simple structure, compactness.

Some embodiments of an extended range drive system according to the present invention are described below with reference to fig. 1.

In some embodiments, as shown in fig. 1, the generator 2 is arranged in parallel with the drive motor 3, i.e., the axis of the engine 1 is arranged in parallel with and radially spaced from the axis of the drive motor 3, whereby the axial dimension of the extended range drive can be reduced.

In some embodiments, the generator 2 and the driving motor 3 are installed in the same box 7, so that the generator 2 and the driving motor 3 of the range-extended driving system can be integrated in the same box 7, the assembly of the motor and the generator 2 of the range-extended driving system is facilitated, and the structure of the range-extended driving system is more compact.

In some embodiments, as shown in fig. 1, the engine 1 is located on one side of the planetary gear mechanism 5, and the generator 2 and the driving motor 3 are located on the other side of the planetary gear mechanism 5, so that the engine 1 has a larger volume, and the engine 1 is separately arranged on one side, thereby facilitating the arrangement of the engine 1 and making the structure of the range-extended driving system more compact.

In some embodiments, as shown in fig. 1, the planetary gear mechanism 5 includes a sun gear 511, a planet carrier 512 and a ring gear 513, the sun gear 511 is in power coupling connection with the driving motor 3, the ring gear 513 is in power coupling connection with the input end of the differential 200, and the planet carrier 512 is locked, and in some examples, the planet carrier 512 may be fixedly connected with the case 7 of the range-extended driving system.

When the driving motor 3 drives the sun gear 511 of the planetary gear mechanism 5 to rotate, the sun gear 511 can drive the planetary gear to rotate, the planet carrier 512 connected with the planetary gear is fixed, the planetary gear rotates and drives the gear ring 513 to rotate, and the gear ring 513 reduces the speed and increases the torque of the power to drive the vehicle 1000 to run.

In some embodiments, as shown in fig. 1, the ring gear 513 has external teeth for meshing with the final drive driven gear 201, that is, both the inner peripheral wall and the outer peripheral wall of the ring gear 513 are toothed, the internal teeth of the inner peripheral wall of the ring gear 513 are for meshing with the planetary gears of the planetary gear mechanism 5, and the external teeth of the outer peripheral wall of the ring gear 513 are for meshing with the final drive driven gear 201, so that the ring gear 513 is used as an output member of the planetary gear mechanism 5 and also as a final drive gear for meshing with the final drive driven gear 201 to reduce and increase torque of the power of the drive motor 3 to the final drive, and the differential 200 drives the axle shafts, thereby rotating the wheels connected with the axle shafts to drive the vehicle 1000.

Due to this arrangement of the ring gear 513, the path of power transmission from the drive motor 3 to the differential 200 is made shorter, power transmission efficiency is enhanced, and the structure of the range-extended drive system thereat is made more compact, reducing the overall size of the range-extended drive system.

In some examples, the number of teeth of final drive driven gear 201 is greater than the number of teeth of outer teeth of ring gear 513, and thus, power is transmitted from ring gear 513 to final drive driven gear 201 for speed reduction transmission, so that power is transmitted from ring gear 513 to final drive driven gear 201 for secondary speed reduction after primary speed reduction of planetary gear mechanism 5 in the transmission path of power of drive motor 3, and thus vehicle 1000 is driven to travel, so that the transmission path is shorter, the power transmission efficiency of the range-extended drive system is increased, and the size of the range-extended drive system is reduced while secondary speed reduction is achieved.

In some embodiments, the speed increasing mechanism 6 includes an engine output gear 61, an idle gear 62, and a generator input gear 63, the engine output gear 61 is connected to an output shaft of the engine 1, and the generator input gear 63 is connected to an input shaft of the generator 2, wherein the number of teeth of the engine output gear 61 is greater than the number of teeth of the generator input gear 63. Thus, the transmission path of power from the engine 1 to the generator 2 is: in the power transmission process, the number of teeth of the engine output gear 61 is greater than that of the generator input gear 63, so that the power output of the engine 1 is transmitted to the generator 2 in an accelerated manner, the power generation efficiency of the generator 2 can be increased, the radial size of the speed increasing mechanism 6 can be increased due to the arrangement of the idle gear 62, the generator 2, the driving motor 3 and the generator 2 are conveniently arranged in parallel, and the arrangement of the generator 2, the driving motor 3 and the engine 1 is enabled not to interfere with each other.

In other embodiments, the speed increasing mechanism 6 may include an engine output sprocket connected to the output shaft of the engine 1, a chain, and a generator input sprocket connected to the input shaft of the generator 2, both the engine output sprocket and the generator input sprocket being engaged with the chain, wherein the diameter of the engine output sprocket is larger than the diameter of the generator input sprocket.

Thus, the transmission path of power from the engine 1 to the generator 2 is: in the power transmission process, the diameter of the engine output chain wheel is larger than that of the generator input chain wheel, so that the power output of the engine 1 is speeded up and transmitted to the generator 2, the power generation efficiency of the generator 2 can be increased, the length of the chain can be set according to the distance between the output end of the generator 2 and the input end of the engine 1, the parallel arrangement of the generator 2, the driving motor 3 and the generator 2 is facilitated, and the arrangement of the generator 2, the driving motor 3 and the engine 1 is not interfered with each other.

As shown in fig. 2, the present invention further provides a vehicle 1000, including the range-extended driving system according to any embodiment of the present invention.

According to the utility model discloses a vehicle 1000 is through setting up the basis the utility model discloses an increase journey actuating system to corresponding advantage has and is no longer repeated here.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An extended range drive system, comprising:

an engine;

the input end of the speed increasing mechanism is in power coupling connection with the output end of the engine;

the input end of the generator is in power coupling connection with the output end of the speed increasing mechanism;

a drive motor;

the input end of the planetary gear mechanism is in power coupling connection with the output end of the driving motor; the output end of the planetary gear mechanism is used for outputting the power of the range-extended driving system, wherein the speed increasing mechanism and the planetary gear mechanism are arranged in an overlapping mode in the axial direction and are spaced in the radial direction.

2. The extended range drive system of claim 1, wherein the generator is arranged in parallel with the drive motor.

3. The extended range drive system of claim 2, wherein the generator and the drive motor are mounted in the same housing.

4. The extended range drive system of claim 2, wherein the engine is located on one side of the planetary gear mechanism and the generator and the drive motor are located on the other side of the planetary gear mechanism.

5. The extended range drive system of claim 1, wherein the planetary gear mechanism comprises a sun gear, a planet carrier, and a ring gear, the sun gear being in power coupling connection with the drive motor, the ring gear being adapted for power coupling connection with an input of a differential, the planet carrier being locked.

6. The range drive system of claim 5, wherein the ring gear has external teeth for meshing with a final drive driven gear.

7. The range-extending drive system according to claim 1, wherein the speed-increasing mechanism includes an engine output gear and a generator input gear, the engine output gear is connected to an output shaft of the engine, the generator input gear is connected to an input shaft of the generator, the engine output gear is in power coupling connection with the generator input gear, and the number of teeth of the engine output gear is greater than that of the generator input gear.

8. The range drive system of claim 7, wherein the speed increasing mechanism further comprises an idler gear meshed between the engine output gear and the generator input gear.

9. A vehicle comprising the extended range drive system of any one of claims 1-8.