Hybrid power system, method, device, equipment and medium based on energy distribution

Abstract

The present application relates to a hybrid power system, method, device, equipment and medium based on energy distribution, wherein the system includes an engine, a gearbox, a first drive module, a second drive module, a PTO shaft and a CVT module; the engine and the first drive module are used to transmit power to the gearbox respectively; the gearbox is used to transmit power to the CVT module; the second drive module is used to transmit power to the CVT module when the vehicle is in a uniform speed operation stage, the power output of the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases; the second drive module is also used to recover the excess power of the CVT module when the vehicle is in a uniform speed operation stage, the power output of the engine remains fixed, and the load on the agricultural implement end carried by the vehicle decreases. The present application can compensate or recover the power of the CVT module when the agricultural implement connected to the agricultural implement end produces a load change, so that the tractor can work more stably.

Description

Technical Field

[0001] The present application relates to the technical field of hybrid power systems, and in particular to a hybrid power system, method, device, equipment and medium based on energy distribution. Background Art

[0002] The transmission system is a key device that connects the engine (or power source) with the drive wheels (or actuators) of vehicles or mechanical equipment. Its core function is to transmit power or torque and achieve changes in speed, torque and driving direction. This system is crucial to ensure the stable operation of various types of transportation, industrial and agricultural machinery. In the field of agricultural machinery, especially in the complex operating environment of equipment such as tractors, advanced shifting technology has become an important factor in ensuring its stable operation.

[0003] Tractors drive agricultural implements through the power output shaft (PTO) to perform field operations. During this process, the resistance between the agricultural implements and the land is affected by many factors, including the contact area between the tire and the soil, soil conditions, operating depth, and the working state of the agricultural implements. These factors cause the resistance to show complex nonlinear dynamic changes, which not only fluctuates over time, but also changes significantly with changes in the operating environment, and this change gradually intensifies over time.

[0004] During the operation of the tractor, the load changes at the PTO end are particularly complex and large, which poses a severe challenge to the tractor's power system. In the existing technology, the research on the energy utilization of hybrid tractors is still insufficient, especially in how to ensure that the tractor can operate smoothly under different load conditions. There is an obvious gap, and a technical solution that can ensure the smooth operation of the tractor is urgently needed. Summary of the invention

[0005] In order to ensure the smooth operation of the tractor, the present application provides a hybrid power system, method, device, equipment and medium based on energy distribution.

[0006] In a first aspect, the present application provides a hybrid power system based on energy distribution, including an engine, a gearbox, a first drive module, a second drive module, a PTO shaft and a CVT module;

[0007] The engine and the first drive module are used to transmit power to the gearbox respectively; the gearbox is used to transmit power to the CVT module; the engine is also used to transmit power to the PTO shaft;

[0008] The second driving module is used to transmit power to the CVT module when the vehicle is in a constant speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases;

[0009] The second driving module is further used to recover excess power of the CVT module when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle is reduced.

[0010] The beneficial effects of the present application are as follows: when the load of the agricultural implement connected to the agricultural implement end changes, the second drive module can compensate or recover the power of the CVT module, so that the output of the CVT module can be adjusted according to the actual load change, achieving the effect of peak shaving and valley filling, and maintaining the output of the CVT module at a stable value. The energy redistribution is completed by the second drive module, so that the power output of the CVT module can be more stable, and the tractor can also work more stably.

[0011] Further, the system further comprises a control module, the first drive module comprises a first clutch, a first motor, a first power battery and a second motor;

[0012] The control module is used to control the engagement of the first clutch when the remaining power of the first power battery is lower than a first power threshold; the first motor is used to generate electricity based on the power output of the engine; the first power battery is used to store the electric energy generated by the first motor and supply power to the second motor; the second motor is used to transmit power to the gearbox.

[0013] The beneficial effect of adopting the above further scheme is: adopting control based on the power monitoring of the first power battery can effectively avoid excessive charging and discharging of the first power battery, which is beneficial to maintaining the health of the first power battery; in addition, according to the capacity monitoring of the first power battery, real-time control of the connection between the engine and the first motor can avoid the waste of engine kinetic energy to a certain extent, thereby driving the tractor more reasonably.

[0014] Furthermore, the second drive module includes a third motor, a second power battery and a fourth motor; the third motor is used to generate electricity based on the power output by the engine; the second power battery is used to store the electric energy generated by the second motor;

[0015] The control module is further used to control the fourth motor to switch to a driving mode when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases; the second power battery is further used to transmit power to the fourth motor, and the fourth motor is used to transmit power to the CVT module;

[0016] The control module is further used to control the fourth motor to switch to a power generation mode when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural machinery end carried by the vehicle is reduced; the fourth motor is also used to generate electricity based on excess power of the CVT module, and the second power battery is also used to store electrical energy generated by the fourth motor.

[0017] The beneficial effect of adopting the above further scheme is that through the coordinated control of the engine, the third motor and the fourth motor, the oil-electric coordinated operation of the hybrid power system is achieved, ensuring the smooth operation of the tractor.

[0018] Further, the output shaft of the engine is connected to a second clutch, the second clutch is connected to a power shaft, and the power shaft is used to transmit power to the gearbox and the PTO shaft respectively;

[0019] The control module is also used to control the second clutch to be disconnected and control the first drive module to transmit power to the gearbox when the vehicle is in a cold start or idle stage; the control module is also used to control the second clutch to be engaged and the engine and the first drive module to jointly transmit power to the gearbox when the vehicle is in a uniform speed running stage.

[0020] The beneficial effect of adopting the above further scheme is: the control method is improved accordingly for different operating conditions such as cold start or idling stage, uniform speed operation stage, etc., the reliability of the hybrid power continuously variable transmission system is improved under all operating conditions, and the economy of the tractor is improved.

[0021] In a second aspect, the present application provides a control method for a hybrid power system based on energy distribution, using a hybrid power system based on energy distribution as described in the first aspect, comprising:

[0022] If the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement carried by the vehicle increases, the second drive module is controlled to transmit power to the CVT module;

[0023] If the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement carried by the vehicle is reduced, then the second driving module is controlled to recover the excess power of the CVT module.

[0024] Furthermore, the method further comprises:

[0025] If the vehicle is in a cold start or idle stage, the engine is controlled not to transmit power to the gearbox and the PTO shaft, and the first drive module is controlled to transmit power to the gearbox, wherein the gearbox is used to transmit power to the CVT module;

[0026] If the vehicle is in a uniform speed operation stage, the engine is controlled to transmit power to the gearbox and the PTO shaft, and the first drive module is controlled to transmit power to the gearbox.

[0027] Furthermore, the first drive module includes a first clutch, a first motor, a first power battery and a second motor; the method further includes:

[0028] If the remaining power of the first power battery is lower than a first power threshold, controlling the first clutch to engage, controlling the first motor to generate electricity based on the power output of the engine, and controlling the first power battery to store the electric energy generated by the first motor;

[0029] If the remaining power of the first power battery is higher than a second power threshold, the first clutch is controlled to be disconnected, and the first motor is controlled not to generate power.

[0030] In a third aspect, the present application provides a control device for a hybrid power system based on energy distribution, comprising:

[0031] A power supplement module, used for controlling the second drive module to transmit power to the CVT module when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases;

[0032] The power recovery module is used to control the second drive module to recover the excess power of the CVT module when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle is reduced.

[0033] In a fourth aspect, the present application provides an electronic device, comprising a processor and a memory, wherein the processor is coupled to the memory;

[0034] The processor is used to execute the computer program stored in the memory so that the electronic device performs the method as described in any one of the second aspects.

[0035] In a fifth aspect, the present application provides a computer-readable storage medium, comprising a computer program or instructions, which, when executed on a computer, enables the computer to execute the method as described in any one of the second aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a structural block diagram of a hybrid power system based on energy distribution according to an embodiment of the present application;

[0037] Figure 2A schematic flow chart of a control method of a hybrid power system based on energy distribution according to an embodiment of the present application;

[0038] Figure 3 This is a structural block diagram of a control device for a hybrid power system based on energy distribution according to an embodiment of the present application;

[0039] Figure 4 This is a structural block diagram of an electronic device according to an embodiment of the present application.

[0040] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0041] 1. First clutch; 2. First motor; 3. First power battery; 4. Second motor; 5. Second clutch; 6. Third motor; 7. Second power battery; 8. Fourth motor; 9. Third clutch. DETAILED DESCRIPTION

[0042] The present application is further described in detail below in conjunction with the accompanying drawings.

[0043] like Figure 1 As shown, an embodiment of the present application provides a hybrid power system based on energy distribution, including an engine, a gearbox, a first drive module, a second drive module, a PTO shaft and a CVT module, the PTO shaft is used to drive the agricultural machinery carried by the vehicle, and the CVT module is used to drive the vehicle to move.

[0044] The engine and the first drive module are used to transmit power to the gearbox respectively; the gearbox is used to transmit power to the CVT module; the engine is also used to transmit power to the PTO shaft. In this embodiment, the vehicle can be a tractor, and the gearbox can be a planetary gearbox.

[0045] The second driving module is used to transmit power to the CVT module when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases.

[0046] The second driving module is further used to recover excess power of the CVT module when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle is reduced.

[0047] In the actual working process of the vehicle, the load on the agricultural implement carried by the vehicle may undergo complex and large changes over time. The first correspondence between the torque at the engine output, the torque transmitted by the engine to the CVT module and the load on the agricultural implement carried by the vehicle can be expressed as:

[0048]

[0049] in, It can represent the torque at the engine output. It can represent the torque transmitted by the engine to the CVT module. It can indicate the load on the implement end of the tractor.

[0050] The power output of the engine can refer to the torque at the engine output end. When the tractor is in the uniform speed operation stage, that is, it works at a certain speed at a constant speed, in order to maintain the high engine performance of the tractor, it is usually a fixed value (that is, the engine's operating point is at the best position of universal characteristics at this time). When the load on the implement increases, the torque transmitted from the engine to the CVT module decreases. At this time, in order to maintain the tractor's constant speed, the second drive module provides additional power to the input end of the CVT module; on the contrary, when the load on the implement increases, the second drive module provides additional power to the input end of the CVT module. When it is reduced, the torque transmitted from the engine to the input end of the CVT module becomes larger. At this time, the excess kinetic energy of the CVT module is recovered by converting the second drive module into the power generation mode, thereby achieving energy redistribution.

[0051] The load generated by the agricultural implement connected to the agricultural implement end When the load changes, the second drive module can compensate or recover the power of the CVT module, so that the output of the CVT module can be adjusted according to the actual load change, achieving the effect of peak shaving and valley filling, and maintaining the output of the CVT module at a stable value. The energy redistribution is completed by the second drive module, making the power output of the CVT module more stable, and thus the tractor can work more stably.

[0052] In this embodiment, the system also includes a control module, and the first drive module includes a first clutch 1, a first motor 2, a first power battery 3 and a second motor 4; the control module is used to control the first clutch 1 to engage when the remaining power of the first power battery 3 is lower than a first power threshold; the first motor 2 is used to generate electricity based on the power output of the engine; the first power battery 3 is used to store the electric energy generated by the first motor 2 and to supply power to the second motor 4; the second motor 4 is used to transmit power to the gearbox.

[0053] The control module may include a controller, which is electrically connected to the first clutch 1 and may be used to control the clutch state of the first clutch 1. The controller may also be electrically connected to the first power battery 3 and may be used to monitor the remaining power of the first power battery 3 in real time.

[0054] The output shaft of the engine is connected to the first clutch 1 through a gear pair, and the first clutch 1 is connected to the first motor 2, which can be a generator. The first motor 2 is connected to the first power battery 3, and the first power battery 3 is connected to the second motor 4. When the remaining power of the first power battery 3 is lower than the first power threshold, the control module controls the first clutch 1 to engage, and the engine transmits power to the first motor 2 through the first clutch 1. The first motor 2 generates electricity according to the power output of the engine, and stores the generated electricity in the first power battery 3. The first power battery 3 supplies power to the second motor 4, and the second motor 4 transmits power to the gearbox. When the remaining power of the first power battery 3 is higher than the second power threshold, the control module controls the first clutch 1 to disconnect so that the first motor 2 does not generate electricity. It is easy to understand that the second power threshold is greater than the first power threshold.

[0055] In this embodiment, the reasonable range of charge and discharge corresponding to the first power battery 3 can be , the first power threshold is the range The lower limit of the second power threshold is the range upper limit.

[0056] When the remaining power of the first power battery 3 is higher than the second power threshold, the hybrid system enters a high battery power working mode. In order to prevent overcharging from damaging the health of the first power battery 3, the first clutch 1 between the output end of the engine and the first motor 2 is disconnected, and the engine no longer charges the first power battery 3. The first power battery 3 directly powers the second motor 4, so that the second motor 4 drives the gearbox to work.

[0057] When the remaining power of the first power battery 3 is lower than the first power threshold, the hybrid power system enters a low battery power working mode. In order to prevent the first power battery 3 from being over-discharged due to low power, the first clutch 1 between the output end of the engine and the first motor 2 is engaged. The engine charges the first power battery 3 while driving the gearbox, so that the second motor 4 drives the gearbox to work.

[0058] The hydraulic oil pump responsible for changing the transmission ratio in the traditional continuously variable transmission system is replaced by the second motor 4. Compared with the traditional hydraulic mechanical control, the control using the second motor 4 has higher transmission efficiency and response speed, and is more reliable.

[0059] The use of control based on power monitoring of the first power battery 3 can effectively avoid overcharging and discharging of the first power battery 3, which is beneficial to maintaining the health of the first power battery 3; in addition, according to the capacity monitoring of the first power battery 3, real-time control of the connection between the engine and the first motor 2 can avoid the waste of engine kinetic energy to a certain extent, thereby driving the tractor more reasonably.

[0060] In this embodiment, the second drive module includes a third motor 6, a second power battery 7 and a fourth motor 8; the third motor 6 is used to generate electricity based on the power output by the engine; the second power battery 7 is used to store the electric energy generated by the second motor 4.

[0061] The output shaft of the engine can transmit power to the third motor 6 through a gear pair. The third motor 6 can be a generator. The third motor 6 is connected to the second power battery 7. The engine transmits power to the second motor 4. The second motor 4 generates electricity according to the power output by the engine, and stores the generated electricity in the second power battery 7.

[0062] The second power battery 7 is connected to the fourth motor 8, and the fourth motor 8 is connected to the CVT module. The fourth motor 8 can include two operating modes: driving mode and power generation mode. The load condition of the agricultural implement end and the torque of the engine output end can be monitored in real time by the sensor. The control module can also be electrically connected to the fourth motor to switch the operating mode of the fourth motor according to the load condition and the torque of the engine output end.

[0063] The control module is further used to control the fourth motor 8 to switch to a driving mode when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases; the second power battery 7 is further used to transmit power to the fourth motor 8, and the fourth motor 8 is used to transmit power to the CVT module;

[0064] The control module is also used to control the fourth motor 8 to switch to a power generation mode when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural machinery end carried by the vehicle is reduced; the fourth motor 8 is also used to generate electricity based on the excess power of the CVT module, and the second power battery 7 is also used to store the electric energy generated by the fourth motor 8.

[0065] When the load on the agricultural machinery end increases, the torque transmitted from the engine to the input end of the CVT module becomes smaller. At this time, in order to maintain the uniform speed of the tractor, the control module controls the fourth motor 8 to provide additional power to the input end of the CVT module. On the contrary, when the load on the agricultural machinery end decreases, the input torque transmitted from the engine to the input end of the CVT module becomes larger. At this time, the control module converts the fourth motor 8 into a power generation mode, which can recover the excess kinetic energy of the CVT module and store it in the second power battery 7 for subsequent use, thereby realizing energy redistribution.

[0066] As an optional implementation in this embodiment, the control module stores a second correspondence between the load change value of the agricultural implement end and the power difference required to maintain the uniform speed of the vehicle. When the load on the agricultural implement end increases, the control module calculates the current change value based on the real-time monitored load on the agricultural implement end and the torque at the engine output end, and can obtain the power difference required to maintain the uniform speed of the vehicle based on the current change value and the second correspondence. Based on the calculated power difference, the control module automatically adjusts the working parameters of the fourth motor 8 so that the fourth motor 8 can output corresponding additional power to the CVT module. The working parameters may include speed and torque, etc.

[0067] The oil-electricity coordinated operation of the hybrid power system is achieved through the coordinated control of the engine, the first motor 2, the second motor 4, the third motor 6 and the fourth motor 8.

[0068] In this embodiment, the output shaft of the engine is connected to a second clutch 5, and the second clutch 5 is connected to a power shaft, and the power shaft is used to transmit power to the gearbox and the PTO shaft respectively. The second clutch 5 is also electrically connected to the control module, and the control module can control the clutch state of the second clutch 5.

[0069] The control module is also used to control the second clutch 5 to be disconnected when the vehicle is in a cold start or idling stage, and the first drive module to transmit power to the gearbox; the control module is also used to control the second clutch 5 to be engaged when the vehicle is in a uniform speed running stage, and the engine and the first drive module jointly transmit power to the gearbox.

[0070] The cold start phase refers to the process of starting the engine from a completely cooled state after it has not been running for a long time (for example, after the vehicle has been parked overnight). The idle phase refers to the state in which the engine runs at the lowest stable speed without any external load (such as driving the vehicle forward).

[0071] The power shaft can be connected to the input end of the gearbox through a gear pair, and the power shaft is also connected to the third clutch 9, and the third clutch 9 is connected to the PTO shaft through a gear pair. The hybrid system based on energy distribution also includes a fixing device for limiting the freedom of the gearbox, through which the normal operation of the gearbox can be achieved when the second motor 4 alone provides power to the gearbox.

[0072] When the vehicle is in the cold start or idling stage, the control module controls the second clutch 5 to be disconnected, and the engine cannot directly provide power to the gearbox and the PTO shaft. Through the above-mentioned fixing device, the second motor 4 alone provides power to the gearbox.

[0073] During the cold start or idle stage of the tractor, the engine is affected by the atomization of the fuel injection and combustion, and its economy, power and emission performance may deteriorate. The second motor 4 as a starting power source has the advantages of fast starting speed and low energy consumption. Therefore, the system can determine whether the engine is in a cold start or idle state through the engine speed sensor, and introduce the second motor 4 to assist in starting. In this embodiment, the engine speed threshold corresponding to the cold start or idle stage can be recorded as .

[0074] During the cold start or idling stage, the performance of the engine is relatively poor. If the PTO shaft is driven again, the economy and emissions may be further deteriorated. Therefore, in this embodiment, the PTO shaft is not driven during the cold start or idling stage.

[0075] The third clutch 9 can also be electrically connected to the control module, and the control module can control the clutch state of the third clutch 9. Considering the actual working environment of the tractor, when the engine speed exceeds the speed threshold corresponding to the cold start or idling stage If the tractor's driving speed tends to be stable over a period of time, it can be considered that the tractor has entered the uniform speed operation stage, and the control module controls the second clutch 5 and the third clutch 9 to engage, and the engine and the second motor 4 can jointly transmit power to the gearbox, and the engine can also transmit power to the PTO shaft.

[0076] In this embodiment, the control method is improved accordingly for different operating conditions such as cold start or idling stage, uniform speed operation stage and load change, thereby improving the reliability of the hybrid power continuously variable transmission system under all operating conditions and enhancing the economy of the tractor.

[0077] When the vehicle is in a cold start or idling stage, the remaining power of the first power battery 3 is lower than the first power threshold, the control module controls the first clutch 1 to engage and controls the second clutch 5 to disconnect, the first motor 2 generates electricity to replenish power for the first power battery 3, and the first power battery 3 also provides power for the second motor 4; when the vehicle is in a cold start or idling stage, the remaining power of the first power battery 3 is higher than the second power threshold, the control module controls the first clutch 1 and the second clutch 5 to disconnect, the first motor 2 does not generate electricity, and the first power battery 3 directly provides power for the second motor 4.

[0078] When the vehicle is in a uniform speed running stage, the remaining power of the first power battery 3 is lower than the first power threshold, the control module controls the first clutch 1 and the second clutch 5 to engage, the first motor 2 generates electricity to supplement the first power battery 3, and the first power battery 3 also provides electricity to the second motor 4; when the vehicle is in a uniform speed running stage, the remaining power of the first power battery 3 is higher than the second power threshold, the first clutch 1 is controlled to be disconnected, the control module controls the second clutch 5 to engage, the first motor 2 does not generate electricity, and the first power battery 3 directly provides electricity to the second motor 4.

[0079] Based on the same technical concept, the embodiment of the present application also provides a control method for a hybrid power system based on energy distribution. The method can be executed by a device, which can be a server or a terminal device, wherein the server can be an independent physical server, a server cluster or a distributed system composed of multiple physical servers, or a cloud server providing cloud computing services. The terminal device can be a tablet computer, a desktop computer, etc., but is not limited thereto.

[0080] like Figure 2 As shown, a control method of a hybrid power system based on energy distribution is performed by an electronic device. The main process of the method is described as follows (steps S101 to S102):

[0081] Step S101: if the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement carried by the vehicle increases, then the second drive module is controlled to transmit power to the CVT module;

[0082] Step S102: If the vehicle is in a uniform speed operation stage, the power output by the engine remains fixed, and the load on the agricultural implement carried by the vehicle is reduced, then the second drive module is controlled to recover the excess power of the CVT module.

[0083] In this embodiment, the method further includes:

[0084] If the vehicle is in a cold start or idle stage, the engine is controlled not to transmit power to the gearbox and the PTO shaft, and the first drive module is controlled to transmit power to the gearbox, wherein the gearbox is used to transmit power to the CVT module;

[0085] If the vehicle is in a uniform speed operation stage, the engine is controlled to transmit power to the gearbox and the PTO shaft, and the first drive module is controlled to transmit power to the gearbox.

[0086] In this embodiment, the first driving module includes a first clutch, a first motor, a first power battery and a second motor; the method further includes:

[0087] If the remaining power of the first power battery is lower than a first power threshold, controlling the first clutch to engage, controlling the first motor to generate electricity based on the power output of the engine, and controlling the first power battery to store the electric energy generated by the first motor;

[0088] If the remaining power of the first power battery is higher than a second power threshold, the first clutch is controlled to be disconnected, and the first motor is controlled not to generate power.

[0089] Based on the same technical concept, the present application also provides a control device for a hybrid power system based on energy distribution, such as Figure 3 As shown, the control device 200 of the hybrid power system based on energy distribution mainly includes:

[0090] The power supplement module 201 is used to control the second drive module to transmit power to the CVT module when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases;

[0091] The power recovery module 202 is used to control the second drive module to recover the excess power of the CVT module when the vehicle is in a constant speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle is reduced.

[0092] Optionally, the device further comprises:

[0093] a first control power transmission module, used for controlling the engine not to transmit power to the gearbox and the PTO shaft when the vehicle is in a cold start or idle stage, and controlling the first drive module to transmit power to the gearbox, wherein the gearbox is used to transmit power to the CVT module;

[0094] The second control power transmission module is used to control the engine to transmit power to the gearbox and the PTO shaft, and control the first drive module to transmit power to the gearbox when the vehicle is in a uniform speed operation stage.

[0095] Optionally, the first drive module includes a first clutch, a first motor, a first power battery and a second motor; the device also includes:

[0096] a third power transmission control module, configured to control the first clutch to engage when the remaining power of the first power battery is lower than a first power threshold, control the first motor to generate electricity based on the power output of the engine, and control the first power battery to store the electric energy generated by the first motor;

[0097] The fourth power transmission control module is used to control the first clutch to be disconnected and the first motor to stop generating electricity when the remaining power of the first power battery is higher than a second power threshold.

[0098] In one example, the module in any of the above devices can be one or more integrated circuits configured to implement the above methods, such as: one or more application specific integrated circuits (ASICs), or, one or more digital signal processors (DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0099] For another example, when the modules in the device can be implemented in the form of a processing element scheduling program, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0100] Various objects such as various messages / information / equipment / network elements / systems / devices / actions / operations / processes / concepts that may appear in this application are named. It can be understood that these specific names do not constitute a limitation on the relevant objects. The names assigned may change with factors such as scenarios, contexts or usage habits. The understanding of the technical meaning of the technical terms in this application should be mainly determined from the functions and technical effects embodied / executed in the technical scheme.

[0101] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and modules described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0102] Those of ordinary skill in the art will appreciate that the modules and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0103] Based on the same technical concept, the present application also provides an electronic device, such as Figure 4 As shown, the electronic device 300 includes a processor 301 and a memory 302 , and may further include an information input / information output (I / O) interface 303 , one or more of a communication component 304 , and a communication bus 305 .

[0104] The processor 301 is used to control the overall operation of the electronic device 300 to complete all or part of the steps in the control method of the hybrid power system based on energy distribution; the memory 302 is used to store various types of data to support the operation of the electronic device 300, and these data may include instructions for any application or method used to operate on the electronic device 300, and data related to the application. The memory 302 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), programmable read-only memory (Programmable Read-Only Memory, PROM), read-only memory (Read-Only Memory, ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0105] The I / O interface 303 provides an interface between the processor 301 and other interface modules, and the above-mentioned other interface modules can be keyboards, mice, buttons, etc. These buttons can be virtual buttons or physical buttons. The communication component 304 is used to test the wired or wireless communication between the electronic device 300 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding communication component 304 can include: Wi-Fi components, Bluetooth components, NFC components.

[0106] The communication bus 305 may include a path to transmit information between the above components. The communication bus 305 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The communication bus 305 may be divided into an address bus, a data bus, a control bus, etc.

[0107] The electronic device 300 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the control method of the hybrid power system based on energy distribution given in the above embodiment.

[0108] The electronic device 300 may include, but is not limited to, a mobile terminal such as a digital broadcast receiver, a PDA (Personal Digital Assistant), a PMP (Portable Multimedia Player), etc., and a fixed terminal such as a digital TV, a desktop computer, etc., and may also be a server, etc.

[0109] Based on the same technical concept, the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the control method of the hybrid power system based on energy distribution are implemented.

[0110] The computer-readable storage medium may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0111] The terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0112] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0113] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0114] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A hybrid power system based on energy distribution, characterized in that: It includes an engine, a gearbox, a first drive module, a second drive module, a PTO shaft, a CVT module and a control module; The engine and the first drive module are used to transmit power to the gearbox respectively; the gearbox is used to transmit power to the CVT module; the engine is also used to transmit power to the PTO shaft; The second driving module is used to transmit power to the CVT module when the vehicle is in a constant speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases; The second driving module is further used to recover the excess power of the CVT module when the vehicle is in a constant speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle is reduced; The first driving module includes a first clutch, a first motor, a first power battery and a second motor; the control module is used to control the first clutch to engage when the remaining power of the first power battery is lower than a first power threshold; The first motor is used to generate electricity based on the power output by the engine; the first power battery is used to store the electric energy generated by the first motor and to supply power to the second motor; the second motor is used to transmit power to the gearbox; The second drive module includes a third motor, a second power battery and a fourth motor; the third motor is used to generate electricity based on the power output by the engine; the second power battery is used to store the electric energy generated by the second motor; The control module is further used to control the fourth motor to switch to a driving mode when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases; the second power battery is further used to transmit power to the fourth motor, and the fourth motor is used to transmit power to the CVT module; The control module is further used to control the fourth motor to switch to a power generation mode when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural machinery end carried by the vehicle is reduced; the fourth motor is also used to generate electricity based on excess power of the CVT module, and the second power battery is also used to store electrical energy generated by the fourth motor.

2. A hybrid power system based on energy distribution according to claim 1, characterized in that: The output shaft of the engine is connected to a second clutch, and the second clutch is connected to a power shaft, and the power shaft is used to transmit power to the gearbox and the PTO shaft respectively; The control module is also used to control the second clutch to be disconnected and control the first drive module to transmit power to the gearbox when the vehicle is in a cold start or idle stage; the control module is also used to control the second clutch to be engaged and the engine and the first drive module to jointly transmit power to the gearbox when the vehicle is in a uniform speed running stage.

3. A control method for a hybrid power system based on energy distribution, characterized in that: A hybrid power system based on energy distribution as claimed in claim 1, comprising: If the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement carried by the vehicle increases, the second drive module is controlled to transmit power to the CVT module; If the vehicle is in a constant speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement carried by the vehicle is reduced, the second drive module is controlled to recover the excess power of the CVT module; If the vehicle is in a cold start or idle stage, the engine is controlled not to transmit power to the gearbox and the PTO shaft, and the first drive module is controlled to transmit power to the gearbox, wherein the gearbox is used to transmit power to the CVT module; If the vehicle is in a uniform speed running stage, the engine is controlled to transmit power to the gearbox and the PTO shaft, and the first drive module is controlled to transmit power to the gearbox; The first drive module includes a first clutch, a first motor, a first power battery and a second motor; the second motor is used to transmit power to the gearbox; the method further includes: If the remaining power of the first power battery is lower than a first power threshold, controlling the first clutch to engage, controlling the first motor to generate electricity based on the power output of the engine, and controlling the first power battery to store the electric energy generated by the first motor; If the remaining power of the first power battery is higher than a second power threshold, the first clutch is controlled to be disconnected, and the first motor is controlled not to generate power; The second drive module includes a third motor, a second power battery and a fourth motor; when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases, the fourth motor is controlled to switch to a driving mode; the second power battery is used to store the electric energy generated by the second motor and transmit power to the fourth motor; the third motor is used to generate electricity based on the power output by the engine; the fourth motor is used to transmit power to the CVT module; When the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural machinery end carried by the vehicle is reduced, the fourth motor is controlled to switch to a power generation mode; the fourth motor is also used to generate electricity based on excess power of the CVT module; and the second power battery is also used to store electrical energy generated by the fourth motor.

4. A control device for a hybrid power system based on energy distribution, characterized in that: include: A power supplement module, used for controlling the second drive module to transmit power to the CVT module when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases; A power recovery module, used for controlling the second drive module to recover excess power of the CVT module when the vehicle is in a constant speed running stage, the power output of the engine remains fixed, and the load on the agricultural implement end carried by the vehicle is reduced; a first control power transmission module, used for controlling the engine not to transmit power to the gearbox and the PTO shaft when the vehicle is in a cold start or idle stage, and controlling the first drive module to transmit power to the gearbox, wherein the gearbox is used to transmit power to the CVT module; a second control power transmission module, used for controlling the engine to transmit power to the gearbox and the PTO shaft, and controlling the first drive module to transmit power to the gearbox when the vehicle is in a uniform speed operation stage; The first drive module includes a first clutch, a first motor, a first power battery and a second motor; the second motor is used to transmit power to the gearbox; the device also includes: a third power transmission control module, configured to control the first clutch to engage when the remaining power of the first power battery is lower than a first power threshold, control the first motor to generate electricity based on the power output of the engine, and control the first power battery to store the electric energy generated by the first motor; a fourth power transmission control module, configured to control the first clutch to be disconnected and the first motor to not generate electricity when the remaining power of the first power battery is higher than a second power threshold; The second drive module includes a third motor, a second power battery and a fourth motor; when the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural implement end carried by the vehicle increases, the fourth motor is controlled to switch to a driving mode; the second power battery is used to store the electric energy generated by the second motor and transmit power to the fourth motor; the third motor is used to generate electricity based on the power output by the engine; the fourth motor is used to transmit power to the CVT module; When the vehicle is in a uniform speed running stage, the power output by the engine remains fixed, and the load on the agricultural machinery end carried by the vehicle is reduced, the fourth motor is controlled to switch to a power generation mode; the fourth motor is also used to generate electricity based on excess power of the CVT module; and the second power battery is also used to store electrical energy generated by the fourth motor.

5. An electronic device, characterized in that: comprising a processor and a memory, wherein the processor is coupled to the memory; The processor is configured to execute the computer program stored in the memory, so that the electronic device executes the method according to claim 3.

6. A computer-readable storage medium, characterized in that: The method comprises a computer program or an instruction, which, when being executed on a computer, causes the computer to execute the method as claimed in claim 3.

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