CN116691316A - Multi-gear hybrid power transmission system and method - Google Patents

Abstract

The application discloses a multi-gear hybrid power transmission system and a method. Wherein, this system includes: a plurality of brakes, a first end of which is fixed on the housing; a plurality of clutches, a first end of the clutch being connected to a wheel end of the vehicle via an output shaft; the planetary gear row group, the first end of planetary gear row group is connected with the output of motor, and the second end of planetary gear row group is connected with the second end of stopper, and the third end of planetary gear row group is connected with the second end of clutch for through combining different stoppers and different clutches, the different power transmission that will motor output is to the wheel end. The application solves the technical problem of higher requirements on motor performance in the related technology.

Description

Multi-gear hybrid power transmission system and method

Technical Field

The application relates to the field of vehicle control, in particular to a multi-gear hybrid power transmission system and method.

Background

Along with the continuous improvement of people's energy saving and emission reduction consciousness, conventional power automobile is difficult to satisfy people's demand by the restriction of structure, and hybrid electric vehicle is as a novel car power type, and drive arrangement has taken extremely important position.

However, the current hybrid transmission is limited by structure, has single structure, and the speed and the load capacity are regulated by the motor, so that the problem of higher requirement on the motor level occurs.

In view of the above problems, no effective solution has been proposed at present.

Disclosure of Invention

The embodiment of the application provides a multi-gear hybrid power transmission system and a method, which are used for at least solving the technical problem of high requirements on motor performance in the related technology.

According to an aspect of an embodiment of the present application, there is provided a multi-gear hybrid transmission system including: a plurality of brakes, a first end of which is fixed on the housing; a plurality of clutches, a first end of the clutch being connected to a wheel end of the vehicle via an output shaft; the planetary gear row group, the first end of planetary gear row group is connected with the output of motor, and the second end of planetary gear row group is connected with the second end of stopper, and the third end of planetary gear row group is connected with the second end of clutch for through combining different stoppers and different clutches, the different power transmission that will motor output is to the wheel end.

Further, the plurality of brakes includes at least a first brake and a second brake, the plurality of clutches includes at least a first clutch and a second clutch, and the planetary gear set includes: the first planet row comprises a first sun gear, a first planet carrier, a first outer planet gear, a first inner planet gear and a first outer gear ring, wherein the first end of the first planet carrier is connected with the second end of the second brake, the second end of the first planet carrier is connected with the second end of the second clutch through a first intermediate shaft, the first sun gear is connected with the second end of the first clutch through a second intermediate shaft, and the first outer gear ring is fixedly connected with the output end of the motor; the second planet row comprises a second sun gear, a second planet carrier, a second planet gear and a second outer gear ring, wherein the first end of the second planet carrier is connected with the second end of the second brake, the second end of the second planet carrier is connected with the second end of the second clutch through a first intermediate shaft, the second sun gear is connected with the second end of the first brake through a third intermediate shaft, and the second outer gear ring is fixedly connected with the output end of the motor.

Further, the system further comprises: the power generation planetary gear set comprises a power generation planetary gear set, wherein a first end of the power generation planetary gear set is connected with an engine through an input shaft and a coupler, and a second end of the power generation planetary gear set is connected with an input end of a motor and used for transmitting power output by the engine to the motor.

Further, the power generation planetary row comprises a third sun gear, a third planet carrier, a third planet gear and a third outer gear ring, wherein the third outer gear ring is connected with the input end of the motor through a one-way clutch, the third sun gear is fixed on the shell, and the third planet carrier is connected with the engine through an input shaft and a coupler.

According to another aspect of the embodiment of the present application, there is also provided a multi-gear hybrid transmission method including: responding to the received driving instruction, controlling the engine to work, and determining a target gear corresponding to the driving instruction; determining an operating state of a brake and an operating state of a clutch based on a target gear; the brake is controlled based on an operating state of the brake, and the clutch is controlled based on an operating state of the clutch.

According to a third aspect of the embodiment of the present application, there is also provided a multi-gear hybrid transmission apparatus including: the receiving module is used for responding to the received driving instruction, controlling the engine to work and determining a target gear corresponding to the driving instruction; the determining module is used for determining the working state of the brake and the working state of the clutch based on the target gear; and the control module is used for controlling the brake based on the working state of the brake and controlling the clutch based on the working state of the clutch.

According to a fourth aspect of the embodiments of the present application, there is also provided a non-volatile storage medium including a stored program, wherein the above-described multi-gear hybrid transmission method is executed in a processor of a device in which the program is controlled to run.

According to a fifth aspect of an embodiment of the present application, there is also provided a vehicle including: one or more processors; a storage means for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors are caused to perform the multi-gear hybrid transmission method described above.

In an embodiment of the present application, there is provided a multi-gear hybrid transmission system including: a plurality of brakes, a first end of which is fixed on the housing; a plurality of clutches, a first end of the clutch being connected to a wheel end of the vehicle via an output shaft; the planetary gear row group, the first end of planetary gear row group is connected with the output of motor, and the second end of planetary gear row group is connected with the second end of stopper, and the third end of planetary gear row group is connected with the second end of clutch for through combining different stoppers and different clutches, the different power transmission that will motor output is to the wheel end. It is easy to notice that through carrying out different combinations to the operating condition of a plurality of brakes and a plurality of clutches to control planetary gear row group according to different combination results, realized carrying out the purpose of multispeed control to the motor, reached and carried out the technological effect that reduces the high demand to the motor performance in the gear control to the motor, and then solved the higher technical problem of the requirement to the motor performance in the correlation technique.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic diagram of the overall architecture of a multi-speed hybrid transmission system according to an embodiment of the present application;

FIG. 2 is a schematic structural view of an alternative multi-speed hybrid transmission system according to an embodiment of the present application;

FIG. 3 is a flow chart of a multi-gear hybrid transmission method according to an embodiment of the present application;

FIG. 4 is a schematic illustration of an alternative first gear configuration according to an embodiment of the present application;

FIG. 5 is a schematic illustration of an alternative second gear configuration according to an embodiment of the present application;

FIG. 6 is a schematic illustration of an alternative third gear configuration according to an embodiment of the present application;

FIG. 7 is a schematic illustration of an alternative fourth gear configuration in accordance with an embodiment of the application;

FIG. 8 is a schematic illustration of an alternative gear according to an embodiment of the present application;

FIG. 9 is a schematic illustration of an alternative park power generation mode configuration in accordance with an embodiment of the present application;

fig. 10 is a schematic view of a multi-gear hybrid transmission device according to an embodiment of the application.

Detailed Description

Currently, in the field, a main stream structure is a double-motor and planetary-gear-train coupling structure, and a multi-gear function is realized through an actuator mechanism such as a clutch and a brake, and the following problems still exist:

1. one of the double motors is a driving motor, the other is a power generation motor, and the double motors have redundancy to a certain extent in the aspects of structure, cost, volume, energy conservation and the like, and cannot realize high integration, high compactness and the like;

2. in order to realize multiple gears, the majority of the currently mainstream mixing devices use a Ravigna planetary row structure, so that certain difficulty exists in production and manufacturing;

3. in the field of single-motor hybrid devices, certain hybrid power devices have the working condition that a driving motor reversely drags an engine, so that the service life of the engine is shortened to a certain extent, and certain energy loss is caused at the same time.

In order to solve the technical problems, the application provides a single-motor planetary gear type multi-gear hybrid power driving device, and provides a single-motor driven hybrid power vehicle driving device based on a planetary gear row. The three planetary rows can be divided into two groups of power output planetary rows, one group of power generation planetary rows, and the two power output planetary row gear trains can be independently designed with transmission ratio, and the planetary row has the characteristics of simple structure, higher transmission efficiency, low component rotation speed and large transmission ratio.

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

According to an embodiment of the present application, an embodiment of a multi-gear hybrid transmission system is provided. FIG. 1 is a schematic diagram of the overall architecture of a multi-speed hybrid transmission system, according to an embodiment of the application, as shown in FIG. 1, comprising:

a plurality of brakes, a first end of which is fixed on the housing;

specifically, the brake is provided inside the hybrid power transmission system, and a first end of the brake is fixed to the housing for performing a braking process on the vehicle.

A plurality of clutches, a first end of the clutch being connected to a wheel end of the vehicle via an output shaft;

specifically, the clutch is disposed inside the hybrid power transmission system, and a first end of the clutch is connected to a wheel end of the vehicle through an output shaft, and is used for transmitting power to the wheel end of the vehicle.

The planetary gear row group, the first end of planetary gear row group is connected with the output of motor, and the second end of planetary gear row group is connected with the second end of stopper, and the third end of planetary gear row group is connected with the second end of clutch for through combining different stoppers and different clutches, the different power transmission that will motor output is to the wheel end.

Specifically, the planetary gear row set is disposed inside the hybrid power transmission system, a first end of the planetary gear row set is connected with an output end of the motor and is used for receiving power output by the motor, a second end of the planetary gear row set is connected with a second end of the brake and is used for driving the brake, and a third end of the planetary gear row set is connected with a second end of the clutch and is used for driving the clutch. By different combinations of the engaged state and the disengaged state of the different brakes and the different clutches, different power output by the motor can be transmitted to the wheel end through the output shaft O.

Optionally, the plurality of brakes includes at least a first brake and a second brake, the plurality of clutches includes at least a first clutch and a second clutch, and the planetary gear set includes: the first planet row comprises a first sun gear, a first planet carrier, a first outer planet gear, a first inner planet gear and a first outer gear ring, wherein the first end of the first planet carrier is connected with the second end of the second brake, the second end of the first planet carrier is connected with the second end of the second clutch through a first intermediate shaft, the first sun gear is connected with the second end of the first clutch through a second intermediate shaft, and the first outer gear ring is fixedly connected with the output end of the motor; the second planet row comprises a second sun gear, a second planet carrier, a second planet gear and a second outer gear ring, wherein the first end of the second planet carrier is connected with the second end of the second brake, the second end of the second planet carrier is connected with the second end of the second clutch through a first intermediate shaft, the second sun gear is connected with the second end of the first brake through a third intermediate shaft, and the second outer gear ring is fixedly connected with the output end of the motor.

Specifically, the planetary gear set includes a first planetary gear set and a second planetary gear set, where the first planetary gear set and the second planetary gear set are disposed at an output port of the motor, and the first planetary gear set is connected to a second end of the clutch through a first intermediate shaft L, and the second planetary gear set is connected to a second end of the brake through a third intermediate shaft N.

FIG. 2 is a schematic structural diagram of an alternative multi-speed hybrid transmission system according to an embodiment of the present application. As shown in fig. 2, the first planetary gear row includes a first sun gear S1, a first carrier H1, a first outer planetary gear P1A, a first inner planetary gear P1B, and a first outer ring gear R1, wherein a first end of the first carrier H1 is connected to a second end of the second brake B2, a second end of the first carrier H1 is connected to a second end of the second clutch E through a first intermediate shaft L, the first sun gear S1 is connected to a second end of the first clutch D through a second intermediate shaft M, and the first outer ring gear is fixedly connected to an output end of the motor EM1.

As shown in fig. 2, the second planetary gear set includes a second sun gear S2, a second planet carrier H2, a second planetary gear P2, and a second external ring gear R2, where a first end of the second planet carrier H2 is connected to a second end of the second brake B2, a second end of the second planet carrier H2 is connected to a second end of the second clutch E through the first intermediate shaft L, the second sun gear S2 is connected to a second end of the first brake B1 through the third intermediate shaft N, and the second external ring gear R2 is fixedly connected to an output end of the motor EM1.

Optionally, the system further comprises: the power generation planetary gear set comprises a power generation planetary gear set, wherein a first end of the power generation planetary gear set is connected with an engine through an input shaft and a coupler, and a second end of the power generation planetary gear set is connected with an input end of a motor and used for transmitting power output by the engine to the motor.

Specifically, the power generation planetary row is provided inside the hybrid power transmission system and is fixedly connected to the input end of the motor EM1. The first end of the power generation planetary row is connected with the engine through an input shaft S and a coupler, and the second end of the power generation planetary row is connected with the input end of the motor EM1 through a one-way clutch OWC and used for transmitting power output by the engine to the motor EM1.

Meanwhile, the output end of the input shaft S is connected with the rotor of the motor EM1 through the power generation planetary gear, and the first end of the rotor of the motor EM1 is fixedly connected with the first external gear ring R1 and the second external gear ring R2.

Optionally, the power generation planetary row comprises a third sun gear, a third planet carrier, a third planet gear and a third outer gear ring, wherein the third outer gear ring is connected with the input end of the motor through a one-way clutch, the third sun gear is fixed on the shell, and the third planet carrier is connected with the engine through an input shaft and a coupler.

Specifically, as shown in fig. 2, the above-mentioned power generation planetary row includes a third sun gear S3, a third carrier H3, a third planetary gear P3, and a third external ring gear R3, wherein the third external ring gear R3 is connected to an input end of the motor EM1 through a one-way clutch OWC, the third sun gear is fixed to the housing, and the third carrier H3 is connected to the engine through an input shaft S and a coupler.

In summary, by providing a multi-gear hybrid transmission system comprising: a plurality of brakes, a first end of which is fixed on the housing; a plurality of clutches, a first end of the clutch being connected to a wheel end of the vehicle via an output shaft; the planetary gear row group, the first end of planetary gear row group is connected with the output of motor, and the second end of planetary gear row group is connected with the second end of stopper, and the third end of planetary gear row group is connected with the second end of clutch for through combining different stoppers and different clutches, the different power transmission that will motor output is to the wheel end. It is easy to notice that through carrying out different combinations to the operating condition of a plurality of brakes and a plurality of clutches to control planetary gear row group according to different combination results, realized carrying out the purpose of multispeed control to the motor, reached the technological effect that reduces the high demand to the motor performance in carrying out the gear control to the motor, thereby solved the higher technical problem of the requirement to the motor performance in the correlation technique.

Example 2

According to an embodiment of the present application, there is provided an embodiment of a multi-gear hybrid transmission method that is applied to a multi-gear hybrid transmission system provided in embodiment 1 described above, it being noted that the steps shown in the flowchart of the drawings may be performed in a computer system such as a set of computer-executable instructions, and that, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in an order different from that herein.

Fig. 3 is a flowchart of a multi-gear hybrid transmission method according to an embodiment of the present application, as shown in fig. 3, including the steps of:

step S302, responding to the received driving instruction, controlling the engine to work, and determining a target gear corresponding to the driving instruction;

specifically, the drive command may be used to indicate a command for driving the vehicle, which is transmitted from the main controller of the vehicle.

The target gear may be a control gear for driving the vehicle, and may be a first gear, a second gear, a third gear, or the like, and the target gear is not particularly limited herein.

The working states of the brake and the clutch corresponding to different target gears are different, and the target gears are consistent with the driving instructions. For example, in response to a drive command characterized as drive control of a first gear of the vehicle, the corresponding target gear is characterized as the first gear or the like.

In an alternative embodiment, after receiving a driving command of the vehicle, the engine is controlled to work, and meanwhile, the power of the engine is transmitted to the wheel end of the vehicle through the multi-gear hybrid power transmission system to drive the vehicle in a target gear.

Step S304, determining the working state of a brake and the working state of a clutch based on the target gear;

specifically, the above-described operating state may be used to indicate the operating state of the brake and the operating state of the clutch, and may be the engaged state or the disengaged state, and the operating state is not particularly limited herein. The target gear is different, and the corresponding working state of the brake and the working state of the clutch are different.

In an alternative embodiment, after the target gear is determined, the operating state of the brake and the operating state of the clutch need to be determined according to the target gear. For example, in response to the target gear being the first gear, the operating state of the corresponding first brake B1 is the engaged state, the operating state of the second clutch E is the engaged state, and vice versa, the operating states of the second brake B2 and the first clutch D are the disengaged state. The above is merely an exemplary illustration, and the target gear and the operating states of the corresponding brake and clutch are not limited thereto.

Step S306 controls the brake based on the operation state of the brake, and controls the clutch based on the operation state of the clutch.

Specifically, after determining the operation state of the brake and the operation state of the clutch, it is necessary to control the brake by the operation state of the brake and to control the clutch by the operation state of the clutch. For example, in response to the operating state of the first brake B1 being the engaged state, the first brake B1 is controlled to be engaged, in response to the operating state of the second clutch E being the engaged state, the second clutch E is controlled to be engaged, in response to the operating state of the second brake B2 and the first clutch D being the disengaged state, the second brake B2 and the first clutch D are controlled to be disengaged, and so on.

In summary, the engine is controlled to work by responding to the received driving instruction, and the target gear corresponding to the driving instruction is determined; determining an operating state of a brake and an operating state of a clutch based on a target gear; the brake is controlled based on an operating state of the brake, and the clutch is controlled based on an operating state of the clutch. It is easy to note that after the target gear corresponding to the driving instruction is determined, the working states of the brake and the clutch corresponding to the target gear can be obtained, and then the brake and the clutch are controlled according to the working states of the brake and the clutch, so that the purpose of multi-gear control of the vehicle is achieved.

In addition, by disposing OWC (One Way Clutch) between the motor EM1 and the engine, when the engine speed is higher than the motor speed, the One Way Clutch OWC is engaged, so that the engine power can be transmitted to the motor direction; when the motor speed is higher than the engine speed, the one-way clutch OWC is separated, and the motor cannot drag the engine reversely, so that energy loss is caused.

Optionally, the plurality of brakes includes at least a first brake and a second brake, the plurality of clutches includes at least a first clutch and a second clutch, determining an operating state of the brake and an operating state of the clutch based on the target gear includes: determining that the operating states of the first brake and the second clutch are the engaged state and the operating states of the second brake and the first clutch are the disengaged state in response to the target gear being the first gear; determining that the operating states of the first clutch and the second clutch are the engaged state and the operating states of the first brake and the second brake are the disengaged state in response to the target gear being the second gear; determining that the operating states of the first brake and the first clutch are the engaged state and the operating states of the second brake and the second clutch are the disengaged state in response to the target gear being the third gear; in response to the target gear being the fourth gear, the operating states of the second brake and the first clutch are determined to be the engaged state, and the operating states of the first brake and the second clutch are determined to be the disengaged state.

Specifically, the first gear may be used to indicate a gear in which the operating states of the first brake and the second clutch are corresponding to the engaged state.

The second gear may be used to indicate that the working states of the first clutch and the second clutch are gears corresponding to the engaged state.

The third gear may be used to indicate a gear in which the operating states of the first brake and the first clutch are corresponding to the engaged state.

The fourth gear may be used to indicate a gear in which the operating states of the second brake and the first clutch are corresponding to the engaged state.

In an alternative embodiment, FIG. 4 is a schematic illustration of an alternative first gear configuration in accordance with an embodiment of the present application. As shown in fig. 4, in response to the target gear being the first gear, it is determined that the operating states of the first brake and the second clutch are the engaged state, and the operating states of the second brake and the first clutch are the disengaged state, that is, the first brake B1 and the second clutch E are engaged. The first brake B1 is combined, the second sun gear S2 is braked, the power of the motor EM1 is output to the second external gear ring R2 through a rotor to drive the second planet carrier H2 to rotate, the power is output to the second clutch E through the first intermediate shaft L, the second clutch E is combined, and the power is transmitted to a wheel end through the output shaft O.

In another alternative embodiment, FIG. 5 is a schematic illustration of an alternative second gear configuration in accordance with an embodiment of the present application. As shown in fig. 5, in response to the target gear being the second gear, it is determined that the operating states of the first clutch and the second clutch are the engaged state, and the operating states of the first brake and the second brake are the disengaged state, that is, the first clutch D and the second clutch E are engaged. The first clutch D and the second clutch E are combined, the first planet carrier H1 and the first sun gear S1 rotate at the same speed, the power of the motor EM1 is input by the first outer gear ring R1, the first planet row integrally operates, the power is transmitted to the output shaft 0 through the first clutch D and the second clutch E, and finally the power is output to the wheel end.

In a third alternative embodiment, FIG. 6 is a schematic illustration of an alternative third gear configuration in accordance with an embodiment of the present application. As shown in fig. 6, in response to the target gear being the third gear, it is determined that the operating states of the first brake and the first clutch are the engaged state, and the operating states of the second brake and the second clutch are the disengaged state, that is, the first brake B1, the first clutch D are engaged. The first brake B1 is combined, the second sun gear S2 is braked, the power of the motor EM1 is input through the second external gear ring R2, the second planet carrier H2 outputs fixed rotating speed and torque to the first planet carrier H1, meanwhile, the power of the motor EM1 is input through the first external gear ring R1 and is coupled with the power of the first planet carrier H1, the first sun gear S1 rotates uniquely, the first clutch D is combined, the first sun gear S1 is connected with the output shaft O, and the power is transmitted to the wheel end.

In a fourth alternative embodiment, FIG. 7 is a schematic illustration of an alternative fourth gear configuration in accordance with an embodiment of the present application. As shown in fig. 7, in response to the target gear being the fourth gear, it is determined that the operating states of the second brake and the first clutch are the engaged state, and the operating states of the first brake and the second clutch are the disengaged state, that is, the second brake B2 and the first clutch D are engaged. The second brake B2 is combined, the first planet carrier is braked, the power of the motor EM1 is input through the first outer gear ring R1 and acts on the first planet row, the first sun gear S1 is enabled to rotate uniquely, the first clutch D is combined, the first sun gear S1 is connected with the output shaft O, and the power is transmitted to the wheel end.

Fig. 8 is a schematic diagram of an alternative gear according to an embodiment of the application. As shown in fig. 8, different target gear positions correspond to different operating states of the first brake B1, the second brake B2, the first clutch D and the second clutch E, wherein a black solid circle represents that the corresponding brake or clutch is in an engaged state, and vice versa.

Optionally, the method further comprises: controlling the engine to work in response to receiving the parallel operation instruction; the power output by the engine is transmitted to the motor through the power generation planetary gear set.

Specifically, the parallel operation command may be used to indicate a command for parallel driving of the engine and the motor of the vehicle.

In an alternative embodiment, in response to receiving a parallel operation instruction of the engine and the motor of the vehicle, engine power can act on a third planet carrier H3 in the power generation planet row through an input shaft S, the third sun gear S3 is fixed, and the power is output to the motor EM1 by the third external gear R3 through a one-way clutch OWC, so as to participate in driving.

Optionally, the method further comprises: in response to receiving the braking command, energizing the motor by the motor controller; and transmitting the current output by the motor to a battery.

Specifically, the brake command described above may be used to indicate a command for controlling braking of the vehicle.

In an alternative embodiment, in response to receiving a braking command, when a driver depresses a brake pedal, the system detects the driving deceleration intention of the driver, adjusts the working state of the motor in each mode through the motor controller, changes the working state from a power output state to a reverse dragging moment state, thereby providing a load, converts magnetic energy into electric energy, and current flows from the motor to the battery to form an energy recovery mode during traveling.

Optionally, the method further comprises: controlling the engine to work in response to receiving the power generation instruction; the power output by the engine is transmitted to the motor through the power generation planetary rows so as to control the motor to generate power; and transmitting the current output by the motor to a battery.

Specifically, the above-described power generation instruction may be used to indicate an instruction to charge the battery of the vehicle when the vehicle is stopped or the engine is idling.

In an alternative embodiment, when the vehicle is stopped and the engine is idling, power is transmitted from the engine to the third planet carrier H3 through the input shaft S to drive the third planet gear P3, and because the third sun gear S3 is fixedly connected to the transmission housing, the third external gear R3 operates in a unique manner, the power is transmitted from the third external gear R3 to the motor EM1 to generate electricity, and current flows from the motor to the battery.

In summary, the application uses a single motor to be coupled with a planetary gear structure, realizes a multi-gear power device through different combinations of a brake and a clutch, reduces the overhigh requirement on the motor performance, and simultaneously has the following beneficial effects:

1. according to the application, only through one motor structure, not only can an electric automobile driving mode be realized, but also the energy recovery and parking power generation capacity can be realized;

2. the application uses two simple planetary rows at the driving end, avoids using a Ravigna structure, and has the advantages of simplicity and cost in production and manufacture;

3. according to the application, by arranging the OWC between the motor and the engine, not only can the power output from the engine to the motor and the driving end be realized, but also the working condition of the motor reversely dragging the engine can be avoided, the efficiency of the system is improved, and the use loss of the engine is reduced.

Example 3

According to the embodiment of the present application, there is further provided a multi-gear hybrid power transmission device, which can execute a multi-gear hybrid power transmission method provided in the foregoing embodiment 2, and the specific implementation manner and the preferred application scenario are the same as those of the foregoing embodiment 2, and are not described herein in detail.

Fig. 10 is a schematic view of a multi-gear hybrid transmission apparatus according to an embodiment of the application, as shown in fig. 10, including:

the receiving module 1002 is configured to control an engine to operate in response to receiving the driving instruction, and determine a target gear corresponding to the driving instruction;

a determining module 1004, configured to determine an operating state of the brake and an operating state of the clutch based on the target gear;

the control module 1006 is configured to control the brake based on an operating state of the brake and to control the clutch based on an operating state of the clutch.

Optionally, the determining module 1004 includes: the first determining module is used for determining that the working states of the first brake and the second clutch are combined and the working states of the second brake and the first clutch are disconnected in response to the target gear being the first gear; the second determining module is used for determining that the working states of the first clutch and the second clutch are combined states and the working states of the first brake and the second brake are disconnected states in response to the target gear being a second gear; the third determining module is used for determining that the working states of the first brake and the first clutch are combined and the working states of the second brake and the second clutch are disconnected in response to the target gear being a third gear; and the fourth determining module is used for determining that the working states of the second brake and the first clutch are combined and the working states of the first brake and the second clutch are disconnected in response to the target gear being the fourth gear.

Optionally, the apparatus further comprises: the first control module is used for controlling the engine to work in response to receiving the parallel operation instruction; and the first transmission module is used for transmitting the power output by the engine to the motor through the power generation planetary gear set.

Optionally, the apparatus further comprises: an applying module for applying excitation to the motor through the motor controller in response to receiving the braking command; and the first transmission module is used for transmitting the current output by the motor to the battery.

Optionally, the apparatus further comprises: the second control module is used for controlling the engine to work in response to receiving the power generation instruction; the second transmission module is used for transmitting the power output by the engine to the motor through the power generation planetary rows so as to control the motor to generate power; and the second transmission module is used for transmitting the current output by the motor to the battery.

Example 4

According to an embodiment of the present application, there is also provided a non-volatile storage medium including a stored program, wherein the above-described multi-gear hybrid transmission method is executed in a processor of a device in which the program is controlled to run.

Example 5

According to an embodiment of the present application, there is also provided a vehicle including: one or more processors; a storage means for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors are caused to perform the multi-gear hybrid transmission method described above.

The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims (10)

1. A multi-gear hybrid transmission system, characterized by comprising:

a plurality of brakes, a first end of which is fixed on the housing;

a plurality of clutches, a first end of which is connected with a wheel end of the vehicle through an output shaft;

the planetary gear row group, planetary gear row group's first end is connected with the output of motor, planetary gear row group's second end with the second end of stopper is connected, planetary gear row group's third end with the second end of clutch is connected for through the difference the stopper with the difference the clutch is combined, will the different power transmission of motor output extremely the wheel end.

2. The multi-speed hybrid transmission system of claim 1, wherein the plurality of brakes includes at least a first brake and a second brake, the plurality of clutches includes at least a first clutch and a second clutch, and the planetary gear row group includes:

the first planet row comprises a first sun gear, a first planet carrier, a first outer planet gear, a first inner planet gear and a first outer gear ring, wherein the first end of the first planet carrier is connected with the second end of the second brake, the second end of the first planet carrier is connected with the second end of the second clutch through a first intermediate shaft, the first sun gear is connected with the second end of the first clutch through a second intermediate shaft, and the first outer gear ring is fixedly connected with the output end of the motor;

the second planet row comprises a second sun gear, a second planet carrier, a second planet gear and a second outer gear ring, wherein the first end of the second planet carrier is connected with the second end of the second brake, the second end of the second planet carrier is connected with the second end of the second clutch through the first intermediate shaft, the second sun gear is connected with the second end of the first brake through the third intermediate shaft, and the second outer gear ring is fixedly connected with the output end of the motor.

3. The multi-speed hybrid transmission system according to claim 1, further comprising:

the power generation planetary gear set comprises a power generation planetary gear set, wherein a first end of the power generation planetary gear set is connected with an engine through an input shaft and a coupler, and a second end of the power generation planetary gear set is connected with an input end of a motor and used for transmitting power output by the engine to the motor.

4. The multi-speed hybrid transmission system according to claim 3, wherein the power generation planetary row includes a third sun gear, a third carrier, a third planetary gear, and a third ring gear, wherein the third ring gear is connected to an input of the electric machine through a one-way clutch, the third sun gear is fixed to the housing, and the third carrier is connected to the engine through the input shaft and the coupler.

5. A multi-shift hybrid transmission method, characterized in that the multi-shift hybrid transmission method is applied to the multi-shift hybrid transmission system according to any one of claims 1 to 4, the multi-shift hybrid transmission method comprising:

responding to a received driving instruction, controlling the engine to work, and determining a target gear corresponding to the driving instruction;

determining an operating state of the brake and an operating state of the clutch based on the target gear;

the brake is controlled based on an operating state of the brake, and the clutch is controlled based on an operating state of the clutch.

6. The multi-gear hybrid transmission method according to claim 5, wherein the plurality of brakes includes at least a first brake and a second brake, the plurality of clutches includes at least a first clutch and a second clutch, determining an operating state of the brake and an operating state of the clutch based on the target gear includes:

determining that the working states of the first brake and the second clutch are combined and the working states of the second brake and the first clutch are disconnected in response to the target gear being a first gear;

determining that the working states of the first clutch and the second clutch are combined states and the working states of the first brake and the second brake are disconnected states in response to the target gear being a second gear;

determining that the working states of the first brake and the first clutch are combined and the working states of the second brake and the second clutch are disconnected in response to the target gear being a third gear;

and in response to the target gear being a fourth gear, determining that the working states of the second brake and the first clutch are combined, and determining that the working states of the first brake and the second clutch are disconnected.

7. The multi-gear hybrid transmission method according to claim 5, characterized by further comprising:

controlling the engine to operate in response to receiving the parallel operation instruction;

and transmitting the power output by the engine to the motor through the power generation planetary gear set.

8. The multi-gear hybrid transmission method according to claim 5, characterized by further comprising:

in response to receiving the braking command, energizing the motor by the motor controller;

and transmitting the current output by the motor to a battery.

9. The multi-gear hybrid transmission method according to claim 5, characterized by further comprising:

controlling the engine to operate in response to receiving a power generation instruction;

transmitting the power output by the engine to a motor through a power generation planetary gear set so as to control the motor to generate power;

and transmitting the current output by the motor to a battery.

10. A vehicle, characterized by comprising: the multi-range hybrid transmission system according to any one of claims 1 to 4.