CN102031800B - Hybrid power regeneration control method and device for excavator - Google Patents
Hybrid power regeneration control method and device for excavator Download PDFInfo
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- CN102031800B CN102031800B CN2010105573552A CN201010557355A CN102031800B CN 102031800 B CN102031800 B CN 102031800B CN 2010105573552 A CN2010105573552 A CN 2010105573552A CN 201010557355 A CN201010557355 A CN 201010557355A CN 102031800 B CN102031800 B CN 102031800B
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Abstract
The invention discloses a hybrid power regeneration control method for an excavator. The method is characterized by comprising the following steps that: when an engine of the excavator runs at an idle speed, a hydraulic load drives a generator to generate power and electric energy generated by the generator is stored in an energy accumulating device; when the engine runs under a low load, the hydraulic load drives the generator to charge the energy accumulating device, the exhaust temperature of the engine is lower than an automatic regeneration temperature and the energy accumulating device drives a heat emitting device to run so as to raise the exhaust temperature and realize regeneration; and when the engine runs under a high load, the exhaust temperature of the engine is higher than the automatic regeneration temperature so as to realize automatic regeneration. A hybrid power regeneration control device for the excavator comprises the engine and a particulate filter and is characterized in that: a heating device is arranged between the engine and the particulate filter; the engine is also connected with a hydraulic load; the hydraulic load is connected with the energy accumulating device through the generator; and the output end of the energy accumulating device is connected with the heating device. By the method and the device, regeneration efficiency is improved and oil consumption is reduced.
Description
Technical field
The present invention relates to a kind of power-control method, be specifically related to a kind of hybrid power regeneration control method and device of excavator.
Background technology
At present; In engineering fields such as building, water conservancies, all kinds of construction machineries begin to be used widely, such as excavator, crane, bulldozer or the like; The construction machinery that this type is used for engineering construction is referred to as engineering machinery, and is wherein especially more general with the use of excavator.Excavator mainly is made up of running gear, slewing equipment, driver's cabin, equipment and power set; Its power set generally are to adopt the Diesel engine machine as power set; Diesel engine is the internal combustion engine that adopts diesel oil to act as a fuel; Chemical energy in the fuel oil is converted into the mechanical energy that drives the vehicle action through burning fuel oil pusher dynamic air cylinder inner carrier as back and forth movement; It has thermal efficiency height, the big and advantage of saving diesel oil of power ratio, thereby be applied in widely in the power set of excavator.
Excavator is in the use of reality; Its Diesel engine inevitably can give off a large amount of tail gas; It is bigger to the pollution of environment to contain particle matter (PM) in the tail gas; Along with people's is to the increase gradually of environmental protection consciousness, and the discharging of particle matter is a major issue that needs overcome in the control excavator diesel motor exhaust, is absolutely necessary so subdue the Diesel engine microparticle matter exhaust through the exhaust aftertreatment mode.Adopting particulate filter (DPF) is comparatively effectively one of means of control diesel motor exhaust particle matter, and particulate filter is installed in the exhaust system of diesel engine, when diesel engine is worked; This device filters out a large amount of particle matters that the heterogeneous body combustion process produces, and with cleaning of off-gas, satisfies emission request; Yet along with the increase of working time, can stop up a large amount of particle matters in this device, so that influence the operate as normal of device; Therefore this device need carry out regenerative operation, burns the particle matter of obstruction, just can work on; But need set delivery temperature during regeneration, during the diesel engine low load operation, delivery temperature can't reach the regeneration temperature of strainer; Thereby restricted the actual use of particulate filter greatly, owing to increased the particulate filter after-treatment device, oil consumption also improves thereupon simultaneously.
Summary of the invention
Hybrid power regeneration control method and device that the object of the invention provides a kind of excavator use this method, have improved regeneration efficiency, have practiced thrift oil consumption.
For achieving the above object, the technical scheme that the present invention adopts is: a kind of hybrid power regeneration control method of excavator, and when the engine idling operation of excavator, the hydraulic pressure load drives generator for electricity generation, and the power storage that generator produces is to energy storage equipment; When motor was in low load operation, it was the energy storage equipment charging that the hydraulic pressure load drives generator, and this moment, engine exhaust temperature was lower than the automatic regeneration temperature, and energy storage equipment drives electro-heat equipment work and improves delivery temperature, realizes regeneration; When motor was in high loaded process, engine exhaust temperature was realized automatic regeneration greater than the automatic regeneration temperature.
A kind of hybrid power regeneration control device of excavator; Comprise a motor and the particulate filter that is connected with engine exhaust port; Be connected with heater between said motor and the said particulate filter; Also be connected with the hydraulic pressure load with said motor, said hydraulic pressure load is connected with energy storage equipment through generator, and said energy storage equipment output is connected with said heater.
In the technique scheme; Said excavator is generally to use at present; Adopt Diesel engine; Said particulate filter (DPF) is installed in the exhaust end of motor, is used to filter out the particulate that engine emission goes out, and the control software of particulate filter is installed in the electronic control module of engine controller.Excavator in use, after engine idling operation surpasses certain hour, and energy storage equipment underfill this moment electricity, then to drive generator for electricity generation be the energy storage equipment charging to the hydraulic pressure load, idling finishes then the hydraulic pressure automatic removal of loading, generating stops; Time of engine low load operation, delivery temperature are low can't to reach DPF automatic regeneration temperature, and this moment is under the effect of hydraulic pressure load; Engine exhaust temperature raises, and in addition, it is the energy storage equipment charging that the hydraulic pressure load drives generator; Simultaneously, charging edge discharge in energy storage equipment limit is supplied power to heater; Improve delivery temperature, make delivery temperature reach the automatic regeneration temperature, realize automatic regeneration; When high engine load operation, delivery temperature is higher, reaches the automatic regeneration temperature, can carry out automatic regeneration, need not the action of hydraulic pressure load.
Because the technique scheme utilization, the present invention compared with prior art has advantage:
1. the present invention is through setting up a heater between motor and particulate filter, and the power source of heater is connected with energy storage equipment, and energy storage equipment is charged through generator drive by the hydraulic pressure load; When engine exhaust temperature is lower than the automatic regeneration temperature, the energy storage equipment discharge drives the heater heating, improves delivery temperature and reaches the automatic regeneration temperature; Realize regeneration; Improved delivery temperature as compared with the past faster, accelerated reproduction speed, thereby improved regeneration efficiency greatly;
2. the present invention drives generator action through the hydraulic pressure load; Be the energy storage equipment charging; By energy storage equipment is that heater provides power to improve delivery temperature, improves delivery temperature thereby need not motor improve power output, thus suitable reduction the oil consumption of motor;
3. the present invention is simple in structure, and is easy to use, and is easy to realize, is adapted at promoting the use of on the excavator.
Description of drawings
Fig. 1 is the schematic diagram of the embodiment of the invention one.
Wherein: 1, motor; 2, particulate filter; 3, heater; 4, hydraulic pressure load; 5, generator; 6, energy storage equipment.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Embodiment one: referring to shown in Figure 1, and a kind of hybrid power regeneration control method of excavator, when the engine idling operation of excavator, the hydraulic pressure load drives generator for electricity generation, and the power storage that generator produces is to energy storage equipment; When motor was in low load operation, it was the energy storage equipment charging that the hydraulic pressure load drives generator, and this moment, engine exhaust temperature was lower than the automatic regeneration temperature, and energy storage equipment drives electro-heat equipment work and improves delivery temperature, realizes regeneration; When motor was in high loaded process, engine exhaust temperature was realized automatic regeneration greater than the automatic regeneration temperature.
A kind of hybrid power regeneration control device of excavator; Comprise a motor 1 and the particulate filter 2 that is connected with engine exhaust port; Be connected with heater 3 between said motor 1 and the said particulate filter 2; Also be connected with hydraulic pressure load 4 with said motor 1, said hydraulic pressure load 4 is connected with energy storage equipment 6 through generator 5, and said energy storage equipment 6 outputs are connected with said heater 3.
In order to realize the fully generating rationally of this device, this system is set to three mode of operations according to the temperature value of discharging tail gas:
⑴ mode of operation one: engine idling operation
When being in idling, motor surpasses certain hour in the time of 3 seconds, and energy storage equipment underfill this moment electricity, then motor connects hydraulic load; Hydraulic load drives generator and generates electricity; Produce electric energy and store in the energy storage equipment, idling finishes, the automatic removal of hydraulic load; Generating stops, and the storage electric energy is that dpf regeneration is prepared in the energy storage equipment;
⑵ mode of operation two: time of engine low load operation
When motor during in underrun; The discharging exhaust temperature is lower, can't reach the temperature that burning DPF catches particle, and promptly regeneration temperature is 250 ℃; If carry out the regeneration of DPF this moment; Hydraulic load is connected on the motor, and externally under the acting in conjunction of load and hydraulic load load, engine exhaust temperature improves; In addition, hydraulic load drives generator for electricity generation, and the generating power storage is charged to energy storage equipment in energy storage equipment; Meanwhile, charging edge discharge in energy storage equipment limit to the heater power supply, promotes delivery temperature; Externally under the acting in conjunction of load, hydraulic load load and heater, make delivery temperature reach setting value T, realize regeneration; After regeneration was accomplished, the circuit of heater cut off automatically, stopped heating; The automatic removal of hydraulic load stops application of load simultaneously, and generator stops generating;
⑶ mode of operation three: high engine load operation
When generator during in heavy-duty service, generator discharging exhaust temperature is higher, can reach the temperature that burning DPF catches particle fully; If motor carries out the regeneration of DPF at this moment; Then can be without the extra interpolation load of hydraulic load, therefore, the tail gas that DPF motor capable of using provides carries out self-regeneration.
In addition, when the hydraulic pressure load operation, should make it be operated in engine fuel best performance point,, reach energy-conservation purpose to guarantee the optimal working oil consumption.
Claims (2)
1. the hybrid power regeneration control method of an excavator; It is characterized in that: adopt the hybrid power regeneration control device of excavator to realize; The hybrid power regeneration control device of said excavator comprises a motor (1) and the particulate filter (2) that is connected with engine exhaust port; Be connected with heater (3) between said motor (1) and the said particulate filter (2); Also be connected with hydraulic pressure load (4) with said motor (1), said hydraulic pressure load (4) is connected with energy storage equipment (6) through generator (5), and said energy storage equipment (6) output is connected with said heater (3); When the engine idling operation of excavator, the hydraulic pressure load drives generator for electricity generation, and the power storage that generator produces is to energy storage equipment; When motor was in low load operation, it was the energy storage equipment charging that the hydraulic pressure load drives generator, and this moment, engine exhaust temperature was lower than the automatic regeneration temperature, and energy storage equipment drives electro-heat equipment work and improves delivery temperature, realizes regeneration; When motor was in high loaded process, engine exhaust temperature was realized automatic regeneration greater than the automatic regeneration temperature.
2. the hybrid power regeneration control device of an excavator; Comprise a motor (1) and the particulate filter (2) that is connected with engine exhaust port; It is characterized in that: be connected with heater (3) between said motor (1) and the said particulate filter (2); Also be connected with hydraulic pressure load (4) with said motor (1), said hydraulic pressure load (4) is connected with energy storage equipment (6) through generator (5), and said energy storage equipment (6) output is connected with said heater (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010105573552A CN102031800B (en) | 2010-11-24 | 2010-11-24 | Hybrid power regeneration control method and device for excavator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105573552A CN102031800B (en) | 2010-11-24 | 2010-11-24 | Hybrid power regeneration control method and device for excavator |
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| CN102031800A CN102031800A (en) | 2011-04-27 |
| CN102031800B true CN102031800B (en) | 2012-07-25 |
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| CN2010105573552A Expired - Fee Related CN102031800B (en) | 2010-11-24 | 2010-11-24 | Hybrid power regeneration control method and device for excavator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE542381C2 (en) * | 2012-04-23 | 2020-04-21 | Brokk Ab | Electrically powered demolition robot and its power supply system |
| CN103742233A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Regeneration method for particulate filter |
| KR20170087825A (en) * | 2016-01-20 | 2017-07-31 | 가부시키가이샤 고마쓰 세이사쿠쇼 | Control device for hybrid work machine, hybrid work machine, and method for controlling hybrid work machine |
| JP7087530B2 (en) * | 2018-03-23 | 2022-06-21 | コベルコ建機株式会社 | Exhaust gas abnormality detector |
| CN114013421B (en) * | 2020-07-17 | 2024-03-08 | 上海汽车集团股份有限公司 | Method and device for removing carbon deposit of particle catcher |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966943A (en) * | 2005-11-14 | 2007-05-23 | 中国科学院金属研究所 | Composite filtering-regeneration device for particulates in exhaust gas from diesel vehicle |
| CN101311506A (en) * | 2007-05-15 | 2008-11-26 | 通用汽车环球科技运作公司 | Electrically heated particulate filter regeneration methods and systems for hybrid vehicles |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6422001B1 (en) * | 2000-10-10 | 2002-07-23 | Bae Systems Controls Inc. | Regeneration control of particulate filter, particularly in a hybrid electric vehicle |
| US6421599B1 (en) * | 2001-08-09 | 2002-07-16 | Ford Global Technologies, Inc. | Control strategy for an internal combustion engine in a hybrid vehicle |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966943A (en) * | 2005-11-14 | 2007-05-23 | 中国科学院金属研究所 | Composite filtering-regeneration device for particulates in exhaust gas from diesel vehicle |
| CN101311506A (en) * | 2007-05-15 | 2008-11-26 | 通用汽车环球科技运作公司 | Electrically heated particulate filter regeneration methods and systems for hybrid vehicles |
Non-Patent Citations (1)
| Title |
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| 严降龙等.电加热柴油机再生排气微粒过滤器的研制与试验.《农机化研究》.2002,(第4期), * |
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