CN215793204U - Range-extending running and parallel operation power system suitable for engineering machinery - Google Patents
Range-extending running and parallel operation power system suitable for engineering machinery Download PDFInfo
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- CN215793204U CN215793204U CN202121944865.5U CN202121944865U CN215793204U CN 215793204 U CN215793204 U CN 215793204U CN 202121944865 U CN202121944865 U CN 202121944865U CN 215793204 U CN215793204 U CN 215793204U
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- 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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- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model provides a range-extending running and parallel operation power system suitable for engineering machinery, which comprises an upper-mounted operating system and a running system, wherein the upper-mounted operating system comprises an engine, a first clutch, an upper-mounted motor, a hydraulic pump and an operating device, and a second clutch is integrated in the upper-mounted motor; the driving system comprises a power battery, a first motor controller, a driving motor, a gearbox and an axle which are connected in sequence; the motor of the upper loading operation system is connected to the power battery through the second motor controller, and the motor of the traveling system is connected to the power battery through the first motor controller; the loading operation system has a parallel operation mode and a single operation mode; the travel system has a range-extended travel mode. The utility model reduces the oil consumption of the engineering vehicle, reduces the exhaust emission post-treatment cost of the engine and reduces the system volume.
Description
Technical Field
The utility model belongs to the technical field of engineering vehicles, and particularly relates to a range-extending running and parallel operation power system suitable for engineering machinery.
Background
Two sets of power sources are needed for running and operation of a traditional engineering mechanical vehicle, and two engines are usually adopted for realizing running of a chassis and loading operation of the traditional engineering mechanical vehicle. Two engines are adopted, so that the oil consumption of the engineering machinery is large, and the oil saving requirement of a user is very strong; meanwhile, the exhaust emission post-treatment cost of the engine is high, the volume of a post-treatment system is increased, and the arrangement is difficult.
And if the pure electric scheme is adopted for running and operation, more batteries must be carried, so that the problems that the cost of the batteries is high, the power of an operation motor is high, the self-carried batteries cannot meet the requirement of long-time operation, an external power supply is easily limited and the like exist, and the electric vehicle is not suitable for the use scene of engineering machinery.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a power system for extended-range running and parallel operation of engineering machinery to solve the problems.
The utility model provides the following technical scheme:
a power system suitable for extended-range running and parallel operation of engineering machinery comprises an upper operating system and a running system;
the upper-mounted operation system comprises an engine, a first clutch, an upper-mounted motor, a hydraulic pump and an operation device which are sequentially connected, wherein a second clutch is integrated in the upper-mounted motor;
the driving system comprises a power battery, a first motor controller, a driving motor, a gearbox and an axle which are connected in sequence;
the upper motor of the upper operation system is connected to the power battery through the second motor controller, and the running motor of the running system is connected to the power battery through the first motor controller;
the upper mounted working system has a parallel working mode in which the engine and the upper mounted motor drive the hydraulic pump in parallel, and a single working mode in which the engine or the upper mounted motor drives the hydraulic pump alone; the upper motor is also provided with a power generation mode, and the power generation mode is as follows: the engine drives the upper motor to generate power, so that the upper motor supplies power for the power battery;
the travel system is provided with a range-extending travel mode, wherein the range-extending travel mode comprises the following steps: the engine is connected with the upper motor to form a range extender, and then is sequentially connected with the second motor controller to generate power for the running motor.
Preferably, the traveling system further comprises a charger, the charger is connected with the power battery in parallel after being connected by a power supply network, and the charger can supply power to the power battery and/or the upper motor.
Preferably, the upper mounting system further comprises a third clutch, and the third clutch is installed between the upper mounting motor and the hydraulic pump.
The utility model has the beneficial effects that:
the driving system of the utility model cancels the engine and adopts the motor for driving, thereby reducing the oil consumption, reducing the exhaust emission post-treatment cost of the engine and reducing the volume of the system.
The upper-mounted operation system is coupled with an upper-mounted motor through an engine, when the engineering vehicle runs, the engine and the motor form a range extender to supply power to a running motor of the running system to drive the vehicle to run; when the engineering vehicle works, the engine and the motor form a parallel hybrid system to drive the hydraulic pump to act on the working device, so that the engineering work is realized. The system replaces a pure electric scheme for driving and operating, the number of the carried batteries is small, long-time operation can be met, the system is not limited by a power grid easily, and the system is suitable for use scenes of engineering machinery.
The driving system comprises a power battery, and a first motor controller, a driving motor, a gearbox and an axle which are sequentially connected. The upper operating system engine, the upper motor and the second motor controller form a range extender which is connected with the power battery. When the vehicle is in extended-range running, the range extender generates power according to parameters such as the SOC state of the power battery and the like and the power request of the whole vehicle, so that the running requirement is met.
The upper-mounted operation system comprises an engine, a first clutch, an upper-mounted motor, a hydraulic pump and an operation device which are sequentially connected, wherein a second clutch is integrated in the upper-mounted motor. The upper-mounted operation system has a parallel operation mode and a single operation mode.
The third clutch is engaged in the parallel operating mode and the single operating mode.
In the parallel operation mode, the first clutch and the second clutch are both in an engaged state, and the engine and the upper motor drive the hydraulic pump together. In another case, the upper motor is in a power generation mode, part of the power of the engine is used for driving the hydraulic pump, and the other part of the power drives the upper motor to generate power, so as to charge the power battery.
In one single working mode, the first clutch and the second clutch are respectively in a separation state and an engagement state, the engine is stopped, the upper motor is powered by the power battery and is in an electric mode, and the upper motor is used for driving the hydraulic pump independently; in another case, the first clutch and the second clutch are respectively in an engaged state and a disengaged state, the upper electric motor does not work, and the upper electric motor drives the hydraulic pump independently.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
labeled as: 1. an engine; 2. a first clutch; 3. installing a motor; 4. a third clutch; 5. a hydraulic pump; 6. a working device; 7. a second clutch; 8. a power battery; 9. a first motor controller; 10. a travel motor; 11. a gearbox; 12. an axle; 13. a second motor controller; 14. provided is a charger.
Detailed Description
As shown in fig. 1, a range-extended driving and parallel operation power system suitable for engineering machinery comprises an upper-mounted operation system and a driving system. The system is characterized in that an engine 1 is coupled with an upper motor 3, and when an engineering vehicle runs, the engine 1 and the upper motor 3 form a range extender to supply power to a running motor of a running system to drive the vehicle to run; when the engineering vehicle works, the engine 1 and the upper motor 3 form a parallel hybrid system, and the hydraulic pump 5 is driven to act on the working device, so that the engineering work is realized.
Specifically, the upper-mounted operation system comprises an engine 1, a first clutch 2, an upper-mounted motor 3, a third clutch 4, a hydraulic pump 5 and an operation device 6 which are sequentially connected, and a second clutch 7 is integrated in the upper-mounted motor 3.
The driving system comprises a power battery 8, a first motor controller 9, a driving motor 10, a gearbox 11 and an axle 12 which are connected in sequence.
The traveling system further comprises a charger 14, the power supply network is connected with the charger 14, the charger 14 is connected with the power battery 8 in parallel, and the charger 14 can supply power for the power battery 8 and/or the upper motor 3.
The upper-mounted operation system has a parallel operation mode in which the engine 1 and the upper-mounted motor 3 drive the hydraulic pump in parallel, and a single operation mode in which the engine 1 or the upper-mounted motor 3 drives the hydraulic pump alone; the upper motor 3 also has a parallel power generation mode, which is: the engine 1 simultaneously drives the hydraulic pump 5 and the upper electric motor 3 to generate electricity, so that the upper electric motor 3 charges the power battery 8;
the travel system has a range-extended travel mode, and the range-extended travel mode is as follows: the engine 1 is connected with the upper motor 3 to form a range extender, and then is connected with the second motor controller 13 to generate power for the running motor 10.
Switching between the modes in the present embodiment is performed by controlling the states of the first clutch 2, the second clutch 7, and the third clutch 4, and controlling the operating modes of the first motor controller 9 and the second motor controller 13.
The upper mounting operation system determines whether to configure the second clutch 7 according to the no-load loss of the upper mounting motor 3, and if the no-load loss of the upper mounting motor 3 is smaller, the second clutch 7 can be cancelled. The upper-mounted working system determines whether to configure the third clutch 4 according to the idle loss of the hydraulic pump 5, and if the idle loss of the hydraulic pump 5 is small, the third clutch 4 can be eliminated.
The working principle of the system is described below.
1. Under the driving working condition:
the first clutch 2 and the second clutch 7 are both in an engaged state, and the third clutch 4 is in a disengaged state. The engine 1 and the upper-mounted motor 3 form a range extender, the range extender is connected to the running motor 10 through the second motor controller 13 and the first motor controller 9 in sequence, and the running motor 10 is driven to run so as to drive the vehicle to run. The range extender generates power according to the power request of the whole vehicle according to parameters such as the SOC state of the power battery and the like, and the driving requirement is met.
2. Under the working condition:
the third clutch 4 is always engaged;
2.1 when no external supply network can be connected
a) The first clutch 2 and the second clutch 7 are both in a joint state, the upper electric motor 3 is in an electric mode, the engine 1 and the upper electric motor 3 jointly drive the hydraulic pump 5, and the electric power of the upper electric motor 3 is derived from the power battery 8;
b) the first clutch 2 and the second clutch 7 are both in an engaged state, the upper electric motor 3 is in a power generation mode, part of power of the engine 1 is used for driving the hydraulic pump 5, and the other part of power drives the upper electric motor 3 to generate power so as to charge the power battery 8;
c) the first clutch 2 is in a separation state, the second clutch 7 is in an engagement state, the engine 1 is stopped, the upper electric motor 3 is in an electric mode, the upper electric motor 3 drives the hydraulic pump 5 independently, and the electric power of the upper electric motor 3 is derived from the power battery 8;
d) the first clutch 2 is in an engaged state, the second clutch 7 is in a disengaged state, the upper electric machine 3 does not work, and the engine 1 drives the hydraulic pump 5 alone.
2.2 when an external supply network can be connected
a) The first clutch 2 and the second clutch 7 are both in an engaged state, the upper-mounted motor 3 is in an electric mode, the engine 1 and the upper-mounted motor 3 jointly drive the hydraulic pump 5, and the electric power of the upper-mounted motor 3 is sourced from an external power supply network;
b) the first clutch 2 is in a separation state, the second clutch 7 is in an engagement state, the engine 1 is stopped, the upper electric motor 3 is in an electric mode, the upper electric motor 3 drives the hydraulic pump 5 independently, and the electric power of the upper electric motor 3 is sourced from an external power supply network;
c) the first clutch 2 is in a separation state, the second clutch 7 is in an engagement state, the engine 1 is stopped, the upper-mounted motor 3 is in an electric mode, the upper-mounted motor 3 drives the hydraulic pump 5 independently, the electric power of the upper-mounted motor 3 preferentially uses a charger (namely, the electric power is from an external power supply network), and the insufficient part is supplemented by the power battery 8;
d) the first clutch 2 is in a separated state, the second clutch 7 is in an engaged state, the engine 1 is stopped, the upper electric motor 3 is in an electric mode, the upper electric motor 3 drives the hydraulic pump 5 independently, the electric power of the upper electric motor 3 is sourced from a charger 14 (namely, from an external power supply network), and meanwhile, an external power grid charges the power battery through the charger 14.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A power system for extended-range running and parallel operation of engineering machinery comprises an upper-mounted operating system and a running system, and is characterized in that,
the upper-mounted operation system comprises an engine, a first clutch, an upper-mounted motor, a hydraulic pump and an operation device which are sequentially connected, wherein a second clutch is integrated in the upper-mounted motor;
the driving system comprises a power battery, a first motor controller, a driving motor, a gearbox and an axle which are connected in sequence;
the upper motor of the upper operation system is connected to the power battery through the second motor controller, and the running motor of the running system is connected to the power battery through the first motor controller;
the upper mounted working system has a parallel working mode in which the engine and the upper mounted motor drive the hydraulic pump in parallel, and a single working mode in which the engine or the upper mounted motor drives the hydraulic pump alone; the upper motor is also provided with a power generation mode, and the power generation mode is as follows: the engine drives the upper motor to generate power, so that the upper motor supplies power for the power battery;
the travel system is provided with a range-extending travel mode, wherein the range-extending travel mode comprises the following steps: and the engine is connected with the upper motor and the second motor controller to form a range extender and then generates power for the traveling system.
2. The system of claim 1, further comprising a charger connected to a power supply network and connected to the power battery in parallel, wherein the charger can supply power to the power battery and/or the top-mounted motor.
3. The range-extended driving and parallel operation power system for engineering machinery as claimed in claim 1, wherein the upper system further comprises a third clutch, and the third clutch is installed between the upper electric motor and the hydraulic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121944865.5U CN215793204U (en) | 2021-08-18 | 2021-08-18 | Range-extending running and parallel operation power system suitable for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121944865.5U CN215793204U (en) | 2021-08-18 | 2021-08-18 | Range-extending running and parallel operation power system suitable for engineering machinery |
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| Publication Number | Publication Date |
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| CN215793204U true CN215793204U (en) | 2022-02-11 |
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| CN202121944865.5U Active CN215793204U (en) | 2021-08-18 | 2021-08-18 | Range-extending running and parallel operation power system suitable for engineering machinery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115179750A (en) * | 2022-07-27 | 2022-10-14 | 徐州重型机械有限公司 | Range-extending type hybrid power system, control method and crane |
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2021
- 2021-08-18 CN CN202121944865.5U patent/CN215793204U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115179750A (en) * | 2022-07-27 | 2022-10-14 | 徐州重型机械有限公司 | Range-extending type hybrid power system, control method and crane |
| WO2024021460A1 (en) * | 2022-07-27 | 2024-02-01 | 徐州重型机械有限公司 | Extended-range hybrid power system and control method therefor, and crane |
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