CN217514956U - Hybrid power system and working machine - Google Patents

Hybrid power system and working machine Download PDF

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Publication number
CN217514956U
CN217514956U CN202221998059.0U CN202221998059U CN217514956U CN 217514956 U CN217514956 U CN 217514956U CN 202221998059 U CN202221998059 U CN 202221998059U CN 217514956 U CN217514956 U CN 217514956U
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China
Prior art keywords
motor
engine
input shaft
gearbox
power system
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CN202221998059.0U
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Chinese (zh)
Inventor
李载霄
何华强
沈元科
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Sany Heavy Equipment Co Ltd
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Sany Heavy Equipment Co Ltd
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Priority to CN202221998059.0U priority Critical patent/CN217514956U/en
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Publication of CN217514956U publication Critical patent/CN217514956U/en
Priority to PCT/CN2023/077900 priority patent/WO2024027139A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The utility model relates to a power equipment technical field provides a hybrid power system and operation machinery, and wherein, hybrid power system includes: the motor comprises an engine, a clutch, a first motor, a second motor, a motor shell and a gearbox; the gearbox is provided with a first input shaft and a second input shaft; the engine, the first motor and the second motor are coaxially arranged, the engine is connected with the first input shaft through the clutch, the first motor is connected with the first input shaft, and the second motor is connected with the second input shaft; first motor and second motor all set up in the motor housing. The utility model provides a hybrid power system and operation machinery can provide great moment of torsion, compensate engine power and moment of torsion not enough, satisfy the big moment of torsion demand, avoid or reduce the operational mode that the engine works in the low efficiency district; energy recovery can be carried out, a better braking effect is realized, and the oil saving rate is improved; the occupied space is reduced, the installation is convenient, the operation machine is easy to apply to the existing operation machine, and the modification difficulty and the modification cost are reduced.

Description

Hybrid power system and working machine
Technical Field
The utility model relates to a power equipment technical field especially relates to a hybrid power system and operation machinery.
Background
Since the work machine (for example, a crane, an excavator, a pile machine, a mining dump truck, a mixer truck, or the like) has a large weight, the work environment is complicated, and operations such as construction work and heavy object transportation are required, which requires a high power system.
Taking a mining dump truck as an example, the mining dump truck is mainly used for short-distance back-and-forth transportation of materials from a loading point to a discharging point, a transportation line is fixed, and the operation working condition of the mining dump truck has the following characteristics: the road condition is complex, the road condition is poor and the gradient is large. Moreover, the working conditions of all mines are different, some are heavy-load uphill and no-load downhill, and some are heavy-load downhill and no-load uphill. The slopes of the mining areas are different, and the altitude is also different. The mining dump truck has short carrying distance, high load-weight ratio and high operation cost (wherein the fuel cost accounts for more than 50 percent of the operation cost of the mining dump truck). Along with the large-scale development of mine transportation equipment, the slope of a mine transportation road is large, and the requirement on the power of a power system is large. Meanwhile, the slope of the mine is large, so that a large power is needed when the vehicle ascends the slope in the running process, and when the vehicle descends the slope, a brake is needed to limit the speed of the vehicle in order to avoid overspeed, so that the acceleration loss of the friction plate is caused, and the power is lost when the vehicle descends the slope.
In part prior art, through increasing the motor, mix motor and engine to increase driving system's output, but current thoughtlessly move the system and receive motor and engine arrangement structure's restriction, when applying to current operation machinery, need carry out great adjustment to operation machinery's original structure, installation cost is high, and difficult realization.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hybrid power system and operation machinery for solve the problem in the current operation machinery of hybrid power system not convenient to use among the prior art.
The utility model provides a hybrid power system, include: the motor comprises an engine, a clutch, a first motor, a second motor, a motor shell and a gearbox;
the gearbox is provided with a first input shaft and a second input shaft;
the engine, the first motor and the second motor are coaxially arranged, the engine is connected with the first input shaft through the clutch, the first motor is connected with the first input shaft, and the second motor is connected with the second input shaft;
the first motor and the second motor are both arranged in the motor shell.
According to the utility model provides a pair of hybrid power system, first motor with the second motor corresponds respectively and is provided with machine controller.
According to the utility model provides a pair of hybrid power system still includes the outrigger, the outrigger connects respectively motor casing with the suspension point of gearbox.
According to the utility model provides a pair of hybrid power system still includes water cooling system, water cooling system is including setting up first water-cooling channel in the motor casing, the extension route of first water-cooling channel passes through respectively on the motor casing with first motor with the position that the second motor corresponds.
According to the utility model provides a pair of hybrid power system, water cooling system still includes second water-cooling channel, second water-cooling channel sets up on the box of gearbox.
According to the utility model provides a pair of hybrid power system, first motor with the machine controller of second motor concatenates on the water cooling system.
According to the utility model provides a pair of hybrid power system, water cooling system still includes the water cooling unit, the water cooling unit is arranged in the rear side of vehicle cab, and is located the lower part of packing box brim of a hat.
According to the utility model provides a pair of hybrid power system still includes the oil cooling equipment, the oil cooling equipment pass through the pipeline intercommunication extremely the inside of gearbox.
According to the utility model provides a pair of hybrid power system, the rear end of gearbox is provided with the interface of getting power.
The utility model also provides an operation machine, including the automobile body and as above hybrid power system, the automobile body by hybrid power system provides the power of traveling and operation power.
The utility model provides a hybrid power system, engine, first motor and second motor can carry out the thoughtlessly to first motor and second motor both sides are put before the gearbox, can provide great moment of torsion, compensate engine power and the not enough of moment of torsion, satisfy the big moment of torsion demand of operation machinery; meanwhile, the first motor and the second motor have the function of adjusting the working point of the engine, and the operation modes of the engine in low-efficiency areas, such as high-speed and low-speed crawling, are avoided or reduced, so that the oil consumption is reduced. And, can carry out energy recuperation through first motor and second motor, during energy recuperation, the energy of rear axle all passes through the gearbox and transmits in the middle of first motor and the second motor, satisfies the ability characteristic of motor, realizes better braking effect, improves the oil-saving rate. In addition, the engine, the first motor and the second motor are coaxially arranged, and the first motor and the second motor are arranged in the motor shell simultaneously, so that the occupied space can be reduced, the installation is convenient, the motor is easy to apply to the existing operation machinery, the refitting difficulty and the refitting cost are reduced, and the assembling and sealing failure risks of the first motor and the second motor are reduced.
Further, the present invention provides a working machine having the above-described hybrid system, and therefore having the advantages described above.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an overall structure of a hybrid power system provided by the present invention;
fig. 2 is a schematic structural diagram of a motor casing of a hybrid power system provided by the present invention;
fig. 3 is a schematic connection diagram of a water cooling system of a hybrid power system provided by the present invention;
FIG. 4 is a schematic structural diagram of a hybrid power system showing the installation position of a water chiller unit;
fig. 5 is a schematic structural diagram of a hybrid power system showing a suspension point position provided by the present invention;
reference numerals: 1. an engine; 2. a clutch; 3. a first motor; 4. a second motor; 5. a first input shaft; 6. a second input shaft; 7. a gearbox; 8. a drive shaft; 9. an axle; 10. a motor housing; 11. a liquid inlet; 12. a liquid outlet; 13. a suspension point; 14. a water pump; 15. an expansion tank; 16. a heat sink; 17. a motor controller; 18. an oil cooling device; 19. a high voltage box; 20. a power supply battery; 21. an electric air conditioner; 22. a water cooling unit; 23. a container brim; 24. a power takeoff.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood as specific cases to those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
A hybrid system according to an embodiment of the present invention is described below with reference to fig. 1 to 5, including: the engine 1, the clutch 2, the first electric machine 3, the second electric machine 4, the motor housing 10 and the gearbox 7. The gearbox 7 is provided with a first input shaft 5 and a second input shaft 6, and the second input shaft 6 is sleeved outside the first input shaft 5; the engine 1, the first motor 3 and the second motor 4 are coaxially arranged, the engine 1 is connected with the first input shaft 5 through the clutch 2, the first motor 3 is connected with the first input shaft 5, and the second motor 4 is connected with the second input shaft 6; the first motor 3 and the second motor 4 are both disposed within the motor housing 10.
According to the utility model discloses hybrid power system mixes engine 1, first motor 3 and second motor 4 and moves, can improve hybrid power system's power, satisfies different work condition's operation demand to can also reduce oil consumption. Because the first motor 3 and the second motor 4 are arranged at the input end of the gearbox 7, when the first motor 3 and the second motor 4 operate, the torque can be increased through the speed reduction of the gearbox 7, and the operation requirement can be met; when energy recovery is carried out, the energy of the rear axle is transmitted to the first motor 3 and the second motor 4 through the gearbox 7, the capacity characteristic of the motors can be met, a good braking effect is achieved, and the oil saving rate is improved. In addition, when the trailer is in neutral gear, the gearbox 7 is in neutral gear, namely, the mechanical connection between the power system and the rear axle can be disconnected, and the transmission shaft 8 does not need to be disconnected.
According to the utility model discloses hybrid power system because engine 1, first motor 3 and the coaxial setting of second motor 4, and first motor 3 and second motor 4 set up simultaneously in motor casing 10, can reduce its space that occupies, need not to make too much adjustment to the overall arrangement of whole car and can realize the installation, can effectively reduce repacking cost, improves the suitability. The first motor 3 and the second motor 4 are mounted in the same casting (motor housing 10), and the risk of assembly and seal failure of the first motor 3 and the second motor 4 can also be reduced.
The embodiment of the utility model provides an in, gearbox 7 adopts the gearbox 7 of dual input axle, and first motor 3 and second motor 4 correspond respectively and are connected to odd number shelves and even number shelves, can realize the autonomous working and collaborative work. The gearbox 7 with double input shafts has no power interruption during gear shifting, and has small arrangement space.
Optionally, the rear end of the gearbox 7 is provided with a power take-off interface, and it can be understood that, since the first motor 3 and the second motor 4 are both arranged at the input end (front end) of the gearbox 7, the power take-off interface can be arranged at the rear end of the gearbox 7, so as to meet the use requirement of the working machine.
The utility model discloses some embodiments, first motor 3 and second motor 4 correspond respectively and are provided with machine controller 17 (MCU), form independent high-pressure return circuit, each other do not influence. When one motor does not work, the work of the other motor is not influenced. Optionally, the two motor controllers 17 are both arranged on the driving platform of the whole vehicle, so that the vibration caused by the chassis can be reduced, and the inspection, debugging and maintenance are convenient.
Optionally, the clutch 2 is correspondingly provided with a clutch control motor and a Clutch Controller (CCU) electrically connected with the clutch control motor, and the clutch controller can control the operation of the clutch control motor so as to control the engagement and the disengagement of the clutch 2. When the clutch 2 needs to work, the motor controller 17 adjusts the corresponding revolution of the first motor 3 or the second motor 4 according to the revolution of the engine 1, and when the same revolution section is met, the clutch controller executes the engaging operation of the clutch 2, so that the sliding abrasion is reduced as much as possible, and the service life of a friction plate is prolonged.
Optionally, the transmission 7 is connected to a Transmission Controller (TCU), and the transmission controller is electrically connected to a motor that controls gear shifting and power take-off of the transmission 7, so as to realize automatic control of the transmission 7.
Further, an Engine Controller (ECU), a clutch controller, a gearbox controller and a motor controller 17 are all connected with a Vehicle Control Unit (VCU) through a CAN bus, and the vehicle control unit coordinates the cooperative work of all control units to switch different hybrid modes so as to meet different working condition requirements of the working machine.
According to the utility model discloses hybrid power system still includes water cooling system, and water cooling system is including setting up the first water-cooling passageway in motor casing 10, and the extension route of first water-cooling passageway passes through the position that corresponds with first motor 3 and second motor 4 on the motor casing 10 respectively. For example, the second motor 4 is disposed at the front side of the first motor 3, the liquid inlet 11 of the first water-cooling channel is disposed at the rear of the first motor 3, and the liquid outlet 12 is disposed at the front of the first motor 3. Therefore, the water cooling requirements of the first motor 3 and the second motor 4 can be met simultaneously, and the structure of the water cooling system is simplified.
The utility model discloses some embodiments, water cooling system still includes second water-cooling channel, and second water-cooling channel sets up on the box of gearbox 7, and the partial heat of gearbox 7 can be taken away to water cooling system's coolant liquid when second water-cooling channel, realizes gearbox 7's water-cooling. In some optional modes, the second water-cooling channel is connected with the first water-cooling channel in series through a water pipe, the arrangement mode can be better suitable for the arrangement mode of the first motor 3, the second motor 4 and the gearbox 7, and the installation is more convenient.
It can be understood that, in the embodiment of the present invention, the first water-cooling channel and the second water-cooling channel may adopt a channel structure extending linearly, and may also adopt a channel structure extending non-linearly in a shape such as a spiral shape. And the first water-cooling channel and the second water-cooling channel can be tubular structures welded and fixed on the shell, and can also be cavities arranged in the shell. The liquid inlet 11 and the liquid outlet 12 of the first water cooling channel and the second water cooling channel are respectively provided with a sealing joint so as to be convenient for installing a pipeline.
Optionally, the motor controllers 17 of the first motor 3 and the second motor 4 are connected in series to the water cooling system, so as to cool the motor controllers 17 of the first motor 3 and the second motor 4.
Further, the power supply batteries 20 of the first motor 3 and the second motor 4 are connected in series on a water cooling system, so as to realize cooling through the water cooling system.
As shown in fig. 3, according to the utility model discloses hybrid power system, water cooling system still includes water chiller 22, water chiller 22 includes circulating water pump 14, radiator 16 and expansion tank 15, circulating water pump 14 and expansion tank 15, radiator 16, first water-cooling passageway and second water-cooling passageway series connection set up, can drive the cooling water circulation in the expansion tank 15 when circulating water pump 14 moves, carry the heat in equipment such as first motor 3, second motor 4, gearbox 7, machine controller 17 to radiator 16 effluvium.
As shown in fig. 4, the water cooling unit 22 is disposed at the rear side of the cab of the vehicle and located at the lower portion of the cargo box visor 23, so that the maintenance and the adjustment can be facilitated, and the collision damage caused by foreign objects can be avoided.
It is understood that in some embodiments, the power supply batteries 20 of the first and second electric motors 3 and 4, the high voltage box 19, and the electric air conditioner 21 may be disposed at the rear side of the cab of the vehicle and at the lower portion of the cargo box visor 23.
According to the utility model discloses hybrid power system still includes oil cooling equipment 18, and oil cooling equipment 18 adopts the oil cooler, communicates to the inside of gearbox 7 through the pipeline, can with water cooling system combined action, realizes the water-cooling of gearbox 7, the cold dual cooling of oil, keeps gearbox 7's normal work. In some alternatives, the oil cooling device 18 is connected in series with a water cooling system, and the oil cooling device 18 may be cooled by the water cooling system.
As shown in fig. 5, in some embodiments of the present invention, the hybrid power system further includes a suspension bracket (not shown in the figure), the suspension bracket connects the suspension points 13 of the motor housing 10 and the transmission case 7, and the suspension bracket supports the first motor 3, the second motor 4 and the transmission case 7, which is beneficial to simplifying the overall structure of the hybrid power system, and is more convenient to install. Furthermore, the suspension bracket is connected with the frame through a shock insulation pad, so that the requirement that the motor and the gearbox 7 are subjected to same-frequency vibration is met.
The embodiment of the utility model provides a still provide an operation machine, including the automobile body and as above hybrid power system, the automobile body provides power and the operation power of traveling by hybrid power system. Specifically, the output end of a gearbox 7 in the hybrid power system is connected with an axle 9 of the vehicle body through a transmission shaft 8 so as to be suitable for providing running power for the vehicle body; the power take-off interface of the gearbox 7 can be connected with a power take-off 24, and the power take-off 24 is used for providing power for working equipment such as an oil pump.
In the embodiment of the present invention, the type of the working machine is not limited, and for example, the working machine may be a crane, an excavator, a pile driver, a mining dump truck, a mixer truck, or the like. In other words, the hybrid system of the present invention may be used as long as the working machine can use the hybrid system.
The utility model discloses operation machinery, owing to used the utility model discloses hybrid power system can switch to different mode according to operating condition, including pure electric starting mode, pure engine 1 drive mode, hybrid drive mode, regenerative braking mode, parking electricity generation mode and parking mode, introduces respectively to each mode below:
pure electric starting mode: when starting, before a preset speed (for example, 15 km/h), the first motor 3 and the second motor 4 are used for driving, the engine 1 idles, and the clutch 2 is disengaged;
engine only 1 drive mode: when the engine 1 is in a high-efficiency area or a high-voltage system of the first motor 3 and the second motor 4 is in failure, the clutch 2 is connected, the first motor 3 and the second motor 4 do not work, and the engine 1 drives the whole vehicle to run through the gearbox 7.
The hybrid driving mode includes: 1: the engine 1, the first motor 3 and the second motor 4 are driven simultaneously; 2: either one of the first motor 3 and the second motor 4 works together with the engine 1, and the other does not work; 3: either one of the first motor 3 and the second motor 4 works together with the engine 1, and the other generates electricity;
regenerative braking mode: the clutch 2 is separated, the first motor 3 and the second motor 4 generate electricity at the same time, and the electric quantity is recycled to the power supply battery 20;
parking power generation mode: the clutch 2 is combined, the engine 1 drives the first motor 3 to generate electricity, the second motor 4 does not work, and the gearbox 7 is in a neutral gear;
the parking operation mode includes: 1: the engine 1 idles, the clutch 2 is separated, and the first motor 3 or the second motor 4 drives the power takeoff 24; 2: the first motor 3 and the second motor 4 are not operated, the clutch 2 is engaged, and the engine 1 drives the power take-off 24.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A hybrid powertrain system, comprising: the motor comprises an engine, a clutch, a first motor, a second motor, a motor shell and a gearbox;
the gearbox is provided with a first input shaft and a second input shaft;
the engine, the first motor and the second motor are coaxially arranged, the engine is connected with the first input shaft through the clutch, the first motor is connected with the first input shaft, and the second motor is connected with the second input shaft;
the first motor and the second motor are both arranged in the motor shell.
2. The hybrid system according to claim 1, wherein a motor controller is provided for each of the first electric motor and the second electric motor.
3. The hybrid system of claim 1, further comprising suspension brackets connecting suspension points of the motor housing and the gearbox, respectively.
4. The hybrid system of claim 2, further comprising a water cooling system including a first water cooling channel disposed within the motor housing, the first water cooling channel extending through positions on the motor housing corresponding to the first and second motors, respectively.
5. The hybrid system of claim 4, further comprising a second water cooling channel disposed on a case of the transmission.
6. The hybrid system of claim 4, wherein the motor controllers of the first and second electric machines are connected in series to the water cooling system.
7. The hybrid system according to any one of claims 4 to 6, wherein the water cooling system further comprises a water cooling unit disposed at a rear side of the vehicle cab and located at a lower portion of a cargo box visor.
8. The hybrid system of claim 1, further comprising an oil cooling device communicated to an interior of the transmission through a conduit.
9. The hybrid powertrain system of claim 1, wherein a rear end of the gearbox is provided with a power take-off interface.
10. A working machine comprising a vehicle body and a hybrid system according to any one of claims 1 to 9, the vehicle body being provided with travel power and working power by the hybrid system.
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CN217514956U (en) * 2022-08-01 2022-09-30 三一重型装备有限公司 Hybrid power system and working machine

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