Stepless speed change hybrid transmission device and transmission method

Abstract

The invention belongs to the technical field of vehicle transmission devices, and particularly relates to an infinitely variable speed hybrid transmission device and a transmission method.The infinitely variable speed hybrid transmission device comprises a power control unit, a first motor, a second motor, an engine unit, a power distribution unit and a storage battery; the first motor, the second motor and the engine unit are movably connected with the power distribution unit. The power control unit is configured to control the operation state of the first motor and / or the second motor and / or the engine unit, so that the power distribution unit outputs corresponding power, or the storage battery is charged by the first motor and / or the second motor; the torque of the first motor, the torque of the second motor and the torque of the engine unit are flexibly distributed through the power control unit and the power distribution unit, continuous output of power is achieved without pause, the second motor can shunt the rotating speed and the torque of the engine unit while generating power, the engine unit works under the most economical working condition, and the effects of energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The present invention belongs to the general field of vehicle technology, and specifically relates to a vehicle transmission device, and more particularly to a continuously variable hybrid transmission device and a transmission method. Background Art

[0002] The existing hybrid power system is equipped with a motor power unit and an engine power unit. Only the motor power unit or the engine power unit can provide power to the vehicle alone. However, there are scenarios where the motor power unit and the engine power unit need to be switched frequently, resulting in unstable power output and energy waste.

[0003] Therefore, there is an urgent need to develop a new continuously variable hybrid transmission device and transmission method to solve the technical problems of unstable power output and energy waste caused by frequent switching when the motor power and engine power are separately set in use.

[0004] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0005] The embodiments of the present disclosure at least provide a continuously variable hybrid transmission device and a transmission method.

[0006] In a first aspect, an embodiment of the present disclosure provides a continuously variable hybrid transmission device, comprising: a power control unit, a first motor, a second motor, an engine group, a power distribution unit and a battery; wherein the first motor, the second motor and the engine group are electrically connected to the power control unit, respectively, the first motor, the second motor and the engine group are movably connected to the power distribution unit, respectively, and the first motor, the second motor and the engine group are electrically connected to the battery; the power control unit is configured to control the operating state of the first motor and / or the second motor and / or the engine group, so that the power distribution unit outputs corresponding power, or the first motor and / or the second motor charges the battery.

[0007] In an optional embodiment, the first motor is movably connected to the power distribution unit via a first gear and a transition gear in sequence; the first motor and the power distribution unit transmit power via the first gear and the transition gear in sequence.

[0008] In an optional embodiment, the engine group is movably connected to the power distribution unit via a clutch gear and a half-shaft gear in sequence; the engine group and the power distribution unit transmit power via a clutch gear and a half-shaft gear in sequence.

[0009] In an optional embodiment, the engine group includes: an engine and a clutch; the clutch is electrically connected to a power control unit, and the engine is movably connected to a clutch gear via the clutch; the power control unit is configured to control the engagement or disengagement of the clutch so that the engine is engaged or disengaged from the clutch gear.

[0010] In an optional embodiment, when the power control unit executes the pure electric mode, the power control unit is configured to control the first motor to start and the second motor to stop, so that the power distribution unit outputs power equal to the output power of the first motor.

[0011] In an optional embodiment, when the power control unit executes the hybrid mode, the power control unit is configured to control the start of the first motor, the start of the second motor and the engagement of the clutch until the second motor starts the engine, and the engine provides part of the output power to the first motor and the battery via the second motor, so that the power distribution unit outputs power that is the sum of the output power of the first motor and the engine minus the output power of the second motor.

[0012] In an optional embodiment, when the power control unit executes the hybrid mode, the power control unit is also configured to control the second motor to add power to the power distribution unit so that the power output of the power distribution unit is the sum of the output power of the first motor, the second motor and the engine.

[0013] In an optional embodiment, when the power control unit executes the direct drive mode, the power control unit is configured to control the start of the second motor and the engagement of the clutch until the second motor starts the engine, the reverse force of the engine and the second motor act together and the first motor remains idling, so that the power output of the power distribution unit is the difference between the output power of the engine and the second motor; when the power control unit executes the direct drive mode and the engine is started, the second motor is locked and the first motor remains idling, so that the power output of the power distribution unit is the output power of the engine.

[0014] In an optional embodiment, when the power control unit executes the local power generation mode, the power control unit is configured to control the first motor to be stationary, the clutch to be engaged, and the second motor to be started, so that the engine charges the battery through the second motor.

[0015] In a second aspect, the disclosed embodiment also provides a transmission method using a continuously variable hybrid transmission device, comprising: when the power control unit executes a pure electric mode, the power control unit controls the first motor to start and the second motor to stop, so that the power distribution unit outputs power that is the output power of the first motor; when the power control unit executes a hybrid mode, the power control unit controls the first motor to start, the second motor to start and the clutch to engage, until the second motor starts the engine, and the engine provides part of its output power to the first motor and the battery through the second motor, so that the power distribution unit outputs power that is the sum of the output power of the first motor and the engine minus the output power of the second motor; when the power control unit executes a hybrid mode, the power control unit controls the second motor to add power to the power distribution unit, so that the power distribution unit outputs power that is the sum of the output power of the first motor, the second motor and the engine.

[0016] The beneficial effect of the present invention is that the present invention flexibly distributes the torque of the first motor, the second motor and the engine group through the power control unit and the power distribution unit to achieve continuous power output without jerking, and the second motor can divert the speed and torque of the engine group while generating electricity, so that the engine group works under the most economical working conditions, thereby playing a role in energy conservation and emission reduction.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A principle block diagram of a continuously variable hybrid transmission device provided in an embodiment of the present disclosure; Figure 2 A flow chart of a continuously variable hybrid transmission device executing a pure electric mode provided by an embodiment of the present disclosure; Figure 3 A flow chart of a continuously variable hybrid transmission device executing a hybrid mode provided by an embodiment of the present disclosure; Figure 4 A flow chart of a continuously variable hybrid transmission device executing a direct drive mode provided by an embodiment of the present disclosure; Figure 5 A flow chart of a continuously variable hybrid transmission device executing an on-site power generation mode provided in an embodiment of the present disclosure.

[0021] In the figure: 1. Power control unit; 2. First motor; 21. First gear; 22. Transition gear; 3. Second motor; 4. Engine group; 41. Engine; 42. Clutch; 43. Clutch gear; 44. Axle gear; 5. Power distribution unit; 6. Battery. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limited. As used herein, the singular articles "one", "an" and "the" may also be intended to include plural forms, unless it is clearly indicated above that this is not the case. The terms "comprise", "include" and "have" are inclusive, and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0024] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0027] like Figures 1 to 5 As shown, at least one embodiment provides a continuously variable hybrid transmission device, which includes: a power control unit 1, a first motor 2, a second motor 3, an engine group 4, a power distribution unit 5 and a battery 6; wherein the first motor 2, the second motor 3, and the engine group 4 are electrically connected to the power control unit 1 respectively, and the first motor 2, the second motor 3, and the engine group 4 are movably connected to the power distribution unit 5 respectively, and the first motor 2, the second motor 3, and the engine group 4 are electrically connected to the battery 6; the power control unit 1 is configured to control the operating state of the first motor 2 and / or the second motor 3 and / or the engine group 4, so that the power distribution unit 5 outputs corresponding power, or the first motor 2 and / or the second motor 3 charges the battery 6.

[0028] Specifically, the power control unit 1 may adopt a vehicle-mounted controller.

[0029] Specifically, the power distribution unit 5 may adopt a central differential.

[0030] Specifically, the power distribution unit 5 can drive the wheels, the tractor PTO device and other mechanisms to achieve hybrid high-efficiency output.

[0031] Specifically, see Figure 1 , the solid lines in the figure are structural connection lines, and the dotted lines in the figure are control connection lines.

[0032] In at least one embodiment, the torque of the first motor 2, the second motor 3 and the engine group 4 is flexibly distributed through the power control unit 1 and the power distribution unit 5 to achieve continuous power output without jerks, and the second motor 3 can divert the speed and torque of the engine group 4 while generating electricity, so that the engine group 4 works under the most economical working condition, thereby achieving the effect of energy conservation and emission reduction.

[0033] In at least one embodiment, see Figure 1 The first motor 2 is movably connected to the power distribution unit 5 through the first gear 21 and the transition gear 22 in sequence; the first motor 2 and the power distribution unit 5 transmit power through the first gear 21 and the transition gear 22 in sequence.

[0034] Specifically, the speed ratio between the first motor 2 and the power distribution unit 5 is 2:1.

[0035] In at least one embodiment, see Figure 1 The engine group 4 is movably connected to the power distribution unit 5 through the clutch gear 43 and the half-shaft gear 44 in turn; the engine group 4 and the power distribution unit 5 transmit power through the clutch gear 43 and the half-shaft gear 44 in turn.

[0036] Specifically, the clutch gear 43 and the half-shaft gear 44 are speed gears, and the speed ratio is related to the rated speed of the second motor 3 and the engine 41 in the engine group 4, and the speed ratio is represented by R.

[0037] Specifically, the speed of the first motor 2 is n1, the torque is T1, and the power is P1.

[0038] Specifically, the speed of the second motor 3 is n2, the torque is T2, and the power is P2.

[0039] Specifically, the speed of the power distribution unit 5 is n3, the torque is T3, and the power is P3.

[0040] In at least one embodiment, see Figure 1 The engine group 4 includes: an engine 41 and a clutch 42; the clutch 42 is electrically connected to the power control unit 1, and the engine 41 is movably connected to the clutch gear 43 through the clutch 42; the power control unit 1 is configured to control the clutch 42 to engage or disengage so that the engine 41 is engaged or disengaged from the clutch gear 43.

[0041] Specifically, the speed of the engine 41 is n4, the torque is T4, and the power is P4.

[0042] Specifically, according to the characteristics of the power distribution unit 5, n1+Rn4=2n3, T1+T4 / R=2T3, and P1+P4=2P3.

[0043] In at least one embodiment, see Figure 2 When the power control unit 1 executes the pure electric mode, the power control unit 1 is configured to control the first motor 2 to start and the second motor 3 to stop, so that the power output of the power distribution unit 5 is the output power of the first motor 2.

[0044] Specifically, the first motor 2 directly drives the power distribution unit 5 to rotate to achieve power output. At this time, the power control unit 1 controls the second motor 3 to a stationary state. According to n1+Rn4=2n3, the clutch 42 idles at a speed of 2Rn1, and the rotation direction of the clutch 42 is opposite to that of the power distribution unit 5.

[0045] Specifically, when there is a demand for large torque output, the second motor 3 immediately rotates at a speed of n1, and the rotation direction of the second motor 3 is opposite to that of the first motor 2. At this time, the half-shaft gear 44 and the clutch 42 are in a stationary state, the clutch 42 is engaged, and the speed of the second motor 3 is increased again to start the engine 41 to achieve torque input.

[0046] Specifically, in the pure electric mode, the clutch 42 is disengaged and the engine 41 stops working.

[0047] Specifically, during deceleration, the first motor 2 acts as an engine 41 to charge the battery 6. At this time, the half-shaft gear 44 and the corresponding meshing parts contain part of the kinetic energy at high speed, and the second motor 3 also acts as a generator to realize kinetic energy recovery.

[0048] In at least one embodiment, see Figure 3 When the power control unit 1 executes the hybrid mode, the power control unit 1 is configured to control the start of the first motor 2, the start of the second motor 3 and the engagement of the clutch 42 until the second motor 3 starts the engine 41, and the engine 41 provides part of the output power to the first motor 2 and the battery 6 through the second motor 3, so that the power distribution unit 5 outputs power equal to the sum of the output power of the first motor 2 and the engine 41 minus the output power of the second motor 3.

[0049] Specifically, since the engine 41 converts part of the output power to the first motor 2 and the battery 6, the engine group 4 can operate under the most economical working condition, thereby achieving the effect of energy conservation and emission reduction.

[0050] Specifically, the clutch 42 is engaged, and the engine 41 is started by the second motor 3 to output power together with the first motor 2 .

[0051] Specifically, according to the economic speed and power range calibrated by the engine 41, the second motor 3 plays a "variable pitch role" to control the engine 41 to be in the high-efficiency working speed range.

[0052] Specifically, the surplus power of the engine 41 can be generated by the second motor 3 for charging the battery 6 and for use by the first motor 2, and at this time P3=P1+P4-P2.

[0053] In at least one embodiment, see Figure 3 When the power control unit 1 executes the hybrid mode, the power control unit 1 is also configured to control the second motor 3 to add power to the power distribution unit 5 so that the power output of the power distribution unit 5 is the sum of the output power of the first motor 2, the second motor 3 and the engine 41.

[0054] Specifically, when the battery 6 is sufficiently charged, the first motor 2, the second motor 3 and the engine 41 can work in parallel and output power at the same time. At this time, P3=P1+P4+P2, and the deceleration charging is the same as the pure electric mode.

[0055] In at least one embodiment, see Figure 4 When the power control unit 1 executes the direct drive mode, the power control unit 1 is configured to control the second motor 3 to start and the clutch 42 to engage until the second motor 3 starts the engine 41, the engine 41 and the reverse force of the second motor 3 work together and the first motor 2 remains idling, so that the power distribution unit 5 outputs power equal to the output power difference between the engine 41 and the second motor 3; when the power control unit 1 executes the direct drive mode and the engine 41 starts, the second motor 3 is locked and the first motor 2 remains idling, so that the power distribution unit 5 outputs power equal to the output power of the engine 41.

[0056] Specifically, the engine 41 is started by the second motor 3, and the engine 41 is running at a speed greater than Rn3 / 2, which works together with the reverse force of the second motor 3 during charging to achieve power output. At this time, the first motor 2 is in an idling state, and P3=P4-P2.

[0057] Specifically, a locking device is added to the second motor 3. When the engine 41 is started, the second motor 3 is locked, and the clutch 42 engages the motor to directly drive the power distribution unit 5 to rotate to achieve kinetic energy output. At this time, the first motor 2 is in an idling state, and P3=P4.

[0058] In at least one embodiment, see Figure 5 When the power control unit 1 executes the local power generation mode, the power control unit 1 is configured to control the first motor 2 to be stationary, the clutch 42 to be engaged, and the second motor 3 to be started, so that the engine 41 charges the battery 6 through the second motor 3.

[0059] Specifically, the mechanical structure locks the first motor 2 or the power distribution unit 5, engages the clutch 42, starts the engine 41, and the second motor 3 rotates in the opposite direction to the engine 41 to charge the battery 6, while P3=0.

[0060] Based on the same technical concept, at least one embodiment also provides a transmission method using the continuously variable hybrid transmission device as described above, which includes: when the power control unit 1 executes the pure electric mode, the power control unit 1 controls the first motor 2 to start and the second motor 3 to stop, so that the power distribution unit 5 outputs the output power of the first motor 2; when the power control unit 1 executes the hybrid mode, the power control unit 1 controls the first motor 2 to start, the second motor 3 to start and the clutch 42 to engage, until the second motor 3 starts the engine 41, and the engine 41 provides part of the output power to the first motor 2 and the battery 6 through the second motor 3, so that the power distribution unit 5 outputs the power of the sum of the output power of the first motor 2 and the engine 41 minus the output power of the second motor 3; when the power control unit 1 executes the hybrid mode, the power control unit 1 controls the second motor 3 to start the first motor 2 and the second motor 3 and the clutch 42 to engage, until the second motor 3 starts the engine 41, and the engine 41 provides part of the output power to the first motor 2 and the battery 6 through the second motor 3, so that the power distribution unit 5 outputs the power of the sum of the output power of the first motor 2 and the engine 41 minus the output power of the second motor 3. The power distribution unit 5 is superimposed on the power distribution unit 5 so that the power output of the power distribution unit 5 is the sum of the output powers of the first motor 2, the second motor 3 and the engine 41; when the power control unit 1 executes the direct drive mode, the power control unit 1 controls the second motor 3 to start and the clutch 42 to engage until the second motor 3 starts the engine 41, and the first motor 2 remains idling, so that the power output of the power distribution unit 5 is the difference between the output powers of the engine 41 and the second motor 3; when the power control unit 1 executes the direct drive mode and the engine 41 is started, the power control unit 1 controls the second motor 3 to be stationary, so that the power output of the power distribution unit 5 is the output power of the engine 41; when the power control unit 1 executes the in-situ power generation mode, the power control unit 1 controls the first motor 2 to be stationary, the clutch 42 to engage and the second motor 3 to start, so that the engine 41 charges the battery 6 through the second motor 3.

[0061] In summary, the present invention flexibly distributes the torque of the first motor, the second motor and the engine group through the power control unit and the power distribution unit to achieve continuous power output without setbacks. The second motor can divert the speed and torque of the engine group while generating electricity, so that the engine group works under the most economical working condition, thereby playing a role in energy conservation and emission reduction. The mechanical structure is simple and has few parts, which can save manufacturing costs and improve reliability. It can drive wheels, tractor PTO devices and other mechanisms to achieve hybrid high-efficiency output.

[0062] The disclosure and other solutions, examples, embodiments, modules and functional operations described in this document can be implemented in digital electronic circuits, or computer software, firmware or hardware, including the structures disclosed in this document and their structural equivalents, or a combination of one or more thereof. The disclosure and other embodiments can be implemented as one or more computer program products, i.e., one or more modules of computer program instructions encoded on a tangible and non-volatile computer-readable medium for execution by a data processing device or to control the operation of the data processing device. The computer-readable medium can be a machine-readable storage device, a machine-readable storage substrate, a storage device, a material composition that affects a machine-readable propagation signal, or a combination of one or more thereof. The term "data processing unit" or "data processing device" includes all devices, equipment and machines for processing data, including, for example, a programmable processor, a computer or a multiprocessor or a computer group. In addition to hardware, the device may also include code that creates an execution environment for a computer program, for example, code constituting processor firmware, a protocol stack, a database management system, an operating system, or a combination of one or more thereof. A propagated signal is an artificially generated signal, for example, a machine-generated electrical, optical or electromagnetic signal, which is generated to encode information for transmission to a suitable receiver device.

[0063] A computer program (also referred to as a program, software, software application, script, or code) may be written in any form of programming language (including compiled or interpreted languages) and may be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment. A computer program does not necessarily correspond to a file in a file system. A program may be stored in a portion of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to the program, or in multiple coordinated files (e.g., files that store one or more modules, subroutines, or portions of code). A computer program may be deployed for execution on one or more computers that are located at one site or distributed across multiple sites and interconnected by a communications network.

[0064] The processes and logic flows described in this document may be performed by one or more programmable processors executing one or more computer programs to perform functions by operating on input data and generating output. The processes and logic flows may also be performed by, and the apparatus may also be implemented as, special purpose logic circuits, such as an FPGA (field programmable gate array) or an ASIC (application specific integrated circuit).

[0065] For example, processors suitable for executing computer programs include general and special purpose microprocessors, and any one or more of any type of digital computer. Typically, the processor will receive instructions and data from a read-only memory or a random access memory or both. The basic components of a computer are a processor that executes instructions and one or more storage devices that store instructions and data. Typically, a computer will also include one or more mass storage devices for storing data, such as magnetic disks, magneto-optical disks, or optical disks, or operably coupled to receive data from a mass storage device or transfer data to a mass storage device, or both. However, a computer does not necessarily have such a device. Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media, and memory devices, including, for example, semiconductor memory devices, such as erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), and flash memory devices; magnetic disks, such as internal hard disks or removable disks; magneto-optical disks; and compact disk read-only memory (CD ROM) and digital versatile disk read-only memory (DVD-ROM) disks. The processor and memory can be supplemented by dedicated logic circuits, or incorporated in dedicated logic circuits.

[0066] Although this patent document contains many details, they should not be construed as limitations on the scope of any invention or the claims, but rather as descriptions of features of particular embodiments of particular inventions. Certain features described in this patent document in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various functions described in the context of a single embodiment may also be implemented separately in multiple embodiments, or in any suitable subcombination. In addition, although the above-mentioned features may be described as working in certain combinations, or even initially claimed to be so, in some cases, one or more features in the claim combination may be removed from the combination, and the claim combination may be directed to subcombinations or variations of subcombinations.

[0067] Likewise, although operations are described in a particular order in the drawings, this should not be understood as requiring that such operations be performed in the particular order or order shown, or that all illustrated operations be performed, in order to achieve the desired results. In addition, the separation of various system components in the embodiments of this patent document should not be understood as requiring such separation in all embodiments.

[0068] Only a few implementations and examples are described, and other implementations, enhancements, and variations can be made based on what is described and illustrated in this patent document.

[0069] A first component is directly coupled to a second component when there are no intermediate components other than a line, trace, or another medium between the first component and the second component. A first component is indirectly coupled to a second component when there are intermediate components other than a line, trace, or another medium between the first component and the second component. The term "coupled" and its variations include direct coupling and indirect coupling. Unless otherwise specified, the use of the term "about" is meant to include a range of 10% above and below the value.

[0070] Although several embodiments are provided in the present disclosure, it should be understood that the disclosed systems and methods may be embodied in many other specific forms without departing from the spirit or scope of the present disclosure. The present examples are considered to be illustrative rather than restrictive and are not limited to the details given. For example, various elements or components may be combined or integrated in another system, or certain features may be omitted or not implemented.

[0071] In several embodiments provided herein, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, program segment or a part of the code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0072] In addition, without departing from the scope of the present disclosure, the discrete or separate techniques, systems, subsystems, and methods described and illustrated in the various embodiments may be combined or integrated with other systems, modules, techniques, or methods. Other items shown or discussed as coupled may be directly connected, or may be indirectly coupled or communicated electrically, mechanically, or otherwise through some interface, device, or intermediate component. Other examples of changes, substitutions, and alterations may be determined by those skilled in the art without departing from the spirit and scope disclosed herein.

Claims

1. A continuously variable hybrid transmission device, characterized in that: include: A power control unit (1), a first motor (2), a second motor (3), an engine block (4), a power distribution unit (5) and a battery (6); wherein The first motor (2), the second motor (3), and the engine group (4) are electrically connected to the power control unit (1), respectively; the first motor (2), the second motor (3), and the engine group (4) are movably connected to the power distribution unit (5), respectively; and the first motor (2), the second motor (3), and the engine group (4) are electrically connected to the battery (6); The power control unit (1) is configured to control the operating state of the first motor (2) and / or the second motor (3) and / or the engine group (4) so ​​that the power distribution unit (5) outputs corresponding power, or the first motor (2) and / or the second motor (3) charges the battery (6).

2. The continuously variable hybrid transmission device according to claim 1, characterized in that: The first motor (2) is movably connected to the power distribution unit (5) via a first gear (21) and a transition gear (22) in sequence; The first motor (2) and the power distribution unit (5) transmit power in sequence through the first gear (21) and the transition gear (22).

3. The continuously variable hybrid transmission device according to claim 1, characterized in that: The engine group (4) is movably connected to the power distribution unit (5) via a clutch gear (43) and a half-shaft gear (44) in sequence; The engine group (4) and the power distribution unit (5) transmit power in sequence through the clutch gear (43) and the half-shaft gear (44).

4. The continuously variable hybrid transmission device according to claim 3, characterized in that: The engine unit (4) comprises: an engine (41) and a clutch (42); The clutch (42) is electrically connected to the power control unit (1), and the engine (41) is movably connected to the clutch gear (43) via the clutch (42); The power control unit (1) is configured to control the clutch (42) to engage or disengage so as to enable the engine (41) to engage with or disengage from the clutch gear (43).

5. The continuously variable hybrid transmission device according to claim 1, characterized in that: When the power control unit (1) executes a pure electric mode, the power control unit (1) is configured to control the first motor (2) to start and the second motor (3) to stop, so that the power distribution unit (5) outputs power equal to the output power of the first motor (2).

6. The continuously variable hybrid transmission device according to claim 4, characterized in that: When the power control unit (1) executes the hybrid mode, the power control unit (1) is configured to control the first motor (2) to start, the second motor (3) to start, and the clutch (42) to engage, until the second motor (3) starts the engine (41), and the engine (41) provides part of its output power to the first motor (2) and the battery (6) via the second motor (3), so that the power distribution unit (5) outputs power equal to the sum of the output powers of the first motor (2) and the engine (41) minus the output power of the second motor (3).

7. The continuously variable hybrid transmission device according to claim 6, characterized in that: When the power control unit (1) executes the hybrid mode, the power control unit (1) is further configured to control the second motor (3) to add power to the power distribution unit (5), so that the power output of the power distribution unit (5) is the sum of the output powers of the first motor (2), the second motor (3) and the engine (41).

8. The continuously variable hybrid transmission device according to claim 4, characterized in that: When the power control unit (1) executes the direct drive mode, the power control unit (1) is configured to control the second motor (3) to start and the clutch (42) to engage until the second motor (3) starts the engine (41), the reverse force of the engine (41) and the second motor (3) act together and the first motor (2) remains idle, so that the power distribution unit (5) outputs power equal to the output power difference between the engine (41) and the second motor (3); When the power control unit (1) executes the direct drive mode and the engine (41) is started, the second motor (3) is locked and the first motor (2) remains idling, so that the power output of the power distribution unit (5) is the output power of the engine (41).

9. The continuously variable hybrid transmission device according to claim 4, characterized in that: When the power control unit (1) executes the local power generation mode, the power control unit (1) is configured to control the first motor (2) to be stationary, the clutch (42) to be engaged, and the second motor (3) to be started, so that the engine (41) charges the battery (6) through the second motor (3).

10. A transmission method using a continuously variable hybrid transmission device, characterized in that: include: When the power control unit (1) executes the pure electric mode, the power control unit (1) controls the first motor (2) to start and the second motor (3) to stop, so that the power distribution unit (5) outputs power equal to the output power of the first motor (2); When the power control unit (1) executes the hybrid mode, the power control unit (1) controls the first motor (2) to start, the second motor (3) to start, and the clutch (42) to engage, until the second motor (3) starts the engine (41), and the engine (41) provides part of its output power to the first motor (2) and the battery (6) via the second motor (3), so that the power distribution unit (5) outputs power equal to the sum of the output powers of the first motor (2) and the engine (41) minus the output power of the second motor (3); When the power control unit (1) executes the hybrid mode, the power control unit (1) controls the second motor (3) to add power to the power distribution unit (5), so that the power output of the power distribution unit (5) is the sum of the output powers of the first motor (2), the second motor (3) and the engine (41).

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