CN103790205A - Hybrid power building machine and energy-conservation control method of hybrid power building machine - Google Patents
Hybrid power building machine and energy-conservation control method of hybrid power building machine Download PDFInfo
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- CN103790205A CN103790205A CN201410052319.9A CN201410052319A CN103790205A CN 103790205 A CN103790205 A CN 103790205A CN 201410052319 A CN201410052319 A CN 201410052319A CN 103790205 A CN103790205 A CN 103790205A
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Abstract
The invention discloses an energy-conservation control method of a hybrid power building machine. The energy-conservation control method includes the following steps: collecting information of SOCs, loads and rotation inverters, judging the rotation state, reducing the rotation speed of an engine if the rotation state is true, recovering the rotation speed of the engine if the rotation state is false, executing a power-driven/electric generation state transition algorithm, and generating a control instruction to transmit the control instruction to a driving motor. The energy-conservation control method is suitable for all engine speed adjusting systems, and oil conservation can be achieved under the heavy loads.
Description
Technical field
The present invention relates to power-saving technology, relate in particular to a kind of hybrid construction machine and energy-saving control method thereof.
Background technology
So far, in the working truck of building machinery etc., multiple output modes are set on motor, the technology that user sets arbitrary output mode according to the size of the required output of operation is well known.For example, the all excavators of domestic market are all provided with various modes and multiple gear, and user is by manually arranging pattern and gear,, user judges that the operation that is about to carry out is that heavily loaded operation is used heavily loaded pattern, uses underloading pattern in contrast.It is flux matched that controller carries out different energy according to the set pattern of user, to reach the object of fuel-economizing.
In the prior art, above-mentioned control technology is made to further improvement, controller carries out online identification according to the operating mode of institute's operation at present, underloading operation or heavily loaded operation in order to distinguish, simultaneously, dynamically revise when engine speed is underloading and reduce engine speed, when heavy duty, improve engine speed, guarantee that like this motor output can realize low oil consumption.
But still there are the following problems:
1, adopt frame for movement governing system for Europe II motor, the physical arrangement of accelerator rod itself produces serious hysteresis to speed-regulating signal more, and the dynamic optimization that therefore carries out rotating speed can not be realized the fuel-economizing of motor;
2,, in the time carrying out heavily loaded operation, said method all must be guaranteed the output of full engine power and can not realize fuel-economizing.
Summary of the invention
The object of this invention is to provide a kind of hybrid construction machine and energy-saving control method thereof, engine speed is not regulated, and reach the object of fuel-economizing, the application life of simultaneously having improved engine governed speed system; And in the time of heavily loaded operation, still can reach the method for fuel-economizing.
The object of the invention is to be achieved through the following technical solutions:
On the one hand, a kind of energy-saving control method of hybrid construction machine is provided, described hybrid construction machine comprises motor, generator/motor, hydraulic pump, drive inverter, revolution inverter, turning motor, slew gear, super capacitor, current sensor, voltage sensor, pressure sensor and work and running gear, described motor, described generator/motor is connected successively with described hydraulic pump, described hydraulic pump connects described work and running gear, described generator/motor, described driving inverter, described revolution inverter, described turning motor is connected successively with described slew gear, described super capacitor and described driving inverter parallel, described current sensor, described pressure sensor connects respectively described hydraulic pump, described voltage sensor connects described super capacitor, wherein, described energy-saving control method comprises the following steps:
Gather SOC, load and revolution inverter information;
Judge turn state, if turn state is true, reduce engine speed, if turn state is false, recover engine speed;
Carry out electronic/generating state branching algorithm;
Generate control instruction to drive motors.
The energy-saving control method of above-mentioned hybrid construction machine, described electronic/generating state branching algorithm comprises: under motoring condition condition, SOC is high and load is large, and under generating state condition, SOC is low and load is little.
On the other hand, provide a kind of hybrid construction machine, wherein, adopt energy-saving control method as above.
Compared with the prior art, beneficial effect of the present invention is:
1) be suitable for all engine governed speed systems;
2) under heavy duty, also can realize fuel-economizing.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that the present invention adopts the hybrid construction machine of energy-saving control method;
Fig. 2 is the schematic flow sheet of hybrid construction machine energy-saving control method of the present invention;
Fig. 3 be hybrid construction machine energy-saving control method of the present invention electronic/schematic diagram of generating state branching algorithm.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the present invention can combine mutually.
Basic thought of the present invention is: design a kind of hybrid power building and energy-saving control method thereof, engine speed is not regulated, and reach the object of fuel-economizing, the application life of simultaneously having improved engine governed speed system; And in the time of heavily loaded operation, still can reach the method for fuel-economizing.
Below in conjunction with schematic diagram and concrete operations embodiment, the invention will be further described.
The energy-saving control method of a kind of hybrid construction machine of the embodiment of the present invention, hybrid construction machine comprises motor 101, generator/motor 102, hydraulic pump 103, drives inverter 104, revolution inverter 105, turning motor 106, slew gear 107, super capacitor 108, current sensor 110, voltage sensor 109, pressure sensor 111 and work and running gear 112, wherein works and running gear 112 comprises that swing arm, dipper, scraper bowl, left lateral walk with right lateral to walk etc.Motor 101, generator/motor 102 and hydraulic pump 103 are coaxially connected, hydraulic pump 103 connection work and running gear 112, generator/motor 102, driving inverter 104, revolution inverter 105, turning motor 106 are connected successively with slew gear 107, turning motor 106 and slew gear 107 mechanical connections, super capacitor 108 is in parallel with driving inverter 104, current sensor 110, pressure sensor 111 connecting fluid press pump 103 respectively, voltage sensor 109 connects super capacitor 108.
Shown in Fig. 2, energy-saving control method comprises the following steps:
Gather SOC, load and revolution inverter information;
Judge turn state, if turn state is true, reduce engine speed, if turn state is false, recover engine speed;
Carry out electronic/generating state branching algorithm;
Generate control instruction to drive motors.
Referring to Fig. 3, electronic/generating state branching algorithm comprises: under motoring condition condition, SOC is high and load is large, and under generating state condition, SOC is low and load is little, and next in halted state condition is other.
When concrete enforcement, while turning round operation, energy source is from super capacitor, engine operated load reduces, and carries out engine working point optimization, reduces engine speed in the time guaranteeing the demand of power output, guarantee that it is in the work of efficient district, fuel efficiency is high, realizes fuel-economizing; When load hour, now drive motors is according to SOC state, when load is light drive motors as generator as engine loading to prevent motor rotating speed when the underloading and raise and to depart from efficient district, optimize oil-gas ratin and reach fuel-economizing object to stablize engine working point; In the time that load is large, now drive motors, according to SOC state, is suitably operated in motoring condition or halted state, to help engine output, realizes fuel-economizing.
Through test, can realize fuel-economizing 10%-15% according to this programme.
Above specific embodiments of the invention be have been described in detail, but the present invention is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications and alternative also all among category of the present invention.Therefore, equalization conversion and the modification done without departing from the spirit and scope of the invention, all should contain within the scope of the invention.
Claims (3)
1. an energy-saving control method for hybrid construction machine, described hybrid construction machine comprises motor (101), generator/motor (102), hydraulic pump (103), drive inverter (104), revolution inverter (105), turning motor (106), slew gear (107), super capacitor (108), current sensor (110), voltage sensor (109), pressure sensor (111) and work and running gear (112), described motor (101), described generator/motor (102) is connected successively with described hydraulic pump (103), and described hydraulic pump (103) connects described work and running gear (112), described generator/motor (102), described driving inverter (104), described revolution inverter (105), described turning motor (106) is connected successively with described slew gear (107), and described super capacitor (108) is in parallel with described driving inverter (104), described current sensor (110), described pressure sensor (111) connects respectively described hydraulic pump (103), and described voltage sensor (109) connects described super capacitor (108), it is characterized in that, described energy-saving control method comprises the following steps:
Gather SOC, load and revolution inverter information;
Judge turn state, if turn state is true, reduce engine speed, if turn state is false, recover engine speed;
Carry out electronic/generating state branching algorithm;
Generate control instruction to drive motors.
2. the energy-saving control method of hybrid construction machine according to claim 1, described electronic/generating state branching algorithm comprises: under motoring condition condition, SOC is high and load is large, and under generating state condition, SOC is low and load is little.
3. a hybrid construction machine, is characterized in that, adopts energy-saving control method as claimed in claim 1 or 2.
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| CN201410052319.9A CN103790205B (en) | 2014-02-14 | 2014-02-14 | Hybrid construction machine and energy-saving control method thereof |
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| CN201410052319.9A CN103790205B (en) | 2014-02-14 | 2014-02-14 | Hybrid construction machine and energy-saving control method thereof |
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| CN103790205B CN103790205B (en) | 2016-11-02 |
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Citations (6)
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| EP1136311A2 (en) * | 2000-03-23 | 2001-09-26 | Toyota Jidosha Kabushiki Kaisha | Electric energy charging control apparatus and method for hybrid vehicle |
| CN101910524A (en) * | 2007-12-26 | 2010-12-08 | 住友重机械工业株式会社 | Hybrid construction machine and control method of hybrid construction machine |
| CN102076943A (en) * | 2008-06-27 | 2011-05-25 | 住友重机械工业株式会社 | Hybrid construction machine |
| JP2012007336A (en) * | 2010-06-23 | 2012-01-12 | Caterpillar Sarl | Control system for hybrid type construction machine |
| CN102459769A (en) * | 2009-06-09 | 2012-05-16 | 住友重机械工业株式会社 | Hybrid excavator and manufacturing method therefor |
| CN103255801A (en) * | 2013-05-27 | 2013-08-21 | 上海华兴数字科技有限公司 | Energy control method for energy storing device of hybrid power machinery |
-
2014
- 2014-02-14 CN CN201410052319.9A patent/CN103790205B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1136311A2 (en) * | 2000-03-23 | 2001-09-26 | Toyota Jidosha Kabushiki Kaisha | Electric energy charging control apparatus and method for hybrid vehicle |
| CN101910524A (en) * | 2007-12-26 | 2010-12-08 | 住友重机械工业株式会社 | Hybrid construction machine and control method of hybrid construction machine |
| CN102076943A (en) * | 2008-06-27 | 2011-05-25 | 住友重机械工业株式会社 | Hybrid construction machine |
| CN102459769A (en) * | 2009-06-09 | 2012-05-16 | 住友重机械工业株式会社 | Hybrid excavator and manufacturing method therefor |
| JP2012007336A (en) * | 2010-06-23 | 2012-01-12 | Caterpillar Sarl | Control system for hybrid type construction machine |
| CN103255801A (en) * | 2013-05-27 | 2013-08-21 | 上海华兴数字科技有限公司 | Energy control method for energy storing device of hybrid power machinery |
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