CN103255801B - A kind of energy storage device energy control method of hybrid power machinery - Google Patents

A kind of energy storage device energy control method of hybrid power machinery Download PDF

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Publication number
CN103255801B
CN103255801B CN201310202567.2A CN201310202567A CN103255801B CN 103255801 B CN103255801 B CN 103255801B CN 201310202567 A CN201310202567 A CN 201310202567A CN 103255801 B CN103255801 B CN 103255801B
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motor
hybrid power
soc value
storage device
control method
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CN103255801A (en
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杨国勋
董希文
刘华胜
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Shanghai Huaxing Digital Technology Co Ltd
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Shanghai Huaxing Digital Technology Co Ltd
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Priority to PCT/CN2014/076831 priority patent/WO2014190842A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0061—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electrical machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
    • E02F9/2091—Control of energy storage means for electrical energy, e.g. battery or capacitors
    • 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
    • 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
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • 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
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Control Of Eletrric Generators (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

The invention discloses a kind of energy storage device energy control method of hybrid power machinery, be located at Mechanical course field, comprise: calculate the bearing power of hybrid power machinery and the SOC value of super capacitor; When SOC value is low, when bearing power is large, dynamoelectric machine is in neither electronic also not generating state; Bearing power hour, dynamoelectric machine is in generating state; When in SOC value, when bearing power is large, dynamoelectric machine is in motoring condition; Bearing power hour, dynamoelectric machine is in generating state; When SOC value is high, bearing power large or hour, dynamoelectric machine is in motoring condition; Controller controls the duty of generator/motor according to above-mentioned judgement.Technical scheme of the present invention judges the duty of generator/motor with the combination of SOC value and bearing power, prevents engine overload, improves complete machine rate of economizing gasoline.

Description

A kind of energy storage device energy control method of hybrid power machinery
Technical field
The invention belongs to mechanical control method, particularly relate to a kind of energy control method being applicable to the energy storage device of hybrid construction machine.
Background technology
At present, due to the characteristic of super capacitor itself, in hybrid power machinery, multiselect is energy-storage units with it, and the application technology relative maturity of super capacitor.And for machine system, safety and rate of economizing gasoline most important, therefore particularly crucial to the cooperation control of the energy of super capacitor and the energy match of SOC (state of charge) and SOC state and bearing power.
Have in prior art directly using the SOC value of super capacitor as control object, improve control accuracy, avoid the systematic jitters that algorithm changeover brings, reliability is high, and applicability is wide.
But there are the following problems in prior art:
1, control objectives is for being only SOC value, and does not consider condition of loading, cause occurring sometimes motor and main pump simultaneously for engine loading to such an extent as to motor owing to transshipping flame-out situation;
2, the undue control accuracy pursuing SOC value have ignored the object of final fuel-economizing.
Summary of the invention
In view of this, the present invention proposes a kind of energy storage device energy control method of hybrid power machinery, by carrying out SOC value controlling in real time to carry out dynamic calculation to bearing power simultaneously, judge the duty of generator/motor with the combination of SOC value and bearing power, prevent engine overload from improving complete machine rate of economizing gasoline.
For achieving the above object, concrete technical scheme is as follows:
A kind of energy storage device energy control method of hybrid power machinery, described hybrid power machinery comprises motor connected successively, generator/motor and executing agency, and by super capacitor that controller is connected with generator/motor, described controller controls the duty of described generator/motor, described duty comprises motoring condition, generating state and neither electronic also not generating state, and described method comprises:
Step 1, calculates the described bearing power of hybrid power machinery and the SOC value of super capacitor;
Step 2, is divided into basic, normal, high by the SOC value of described super capacitor; Described bearing power is divided into large and small;
Step 3, judges by the match condition of described SOC value and bearing power the duty determining described generator/motor: when SOC value is low, when bearing power is large, and described dynamoelectric machine is in neither electronic also not generating state; Bearing power hour, described dynamoelectric machine is in generating state; When in SOC value, when bearing power is large, described dynamoelectric machine is in motoring condition; Bearing power hour, described dynamoelectric machine is in generating state; When SOC value is high, bearing power large or hour, described dynamoelectric machine is in motoring condition;
Step 4, described controller controls the duty of described generator/motor according to the judgement of step 3.
Preferably, when the SOC value in described step 2 is in 0 ~ 30%, 30% ~ 60%, 60% ~ 1, be divided into basic, normal, high respectively.
Preferably, in described hybrid power machinery, be also provided with data pick-up, by data computational load power that described data pick-up gathers in described step 1.
Preferably, described data pick-up comprises voltage sensor, current sensor and pressure sensor.
Preferably, described controller is for driving inverter.
Preferably, described step 4 middle controller is by controlling the duty of generator/motor described in rotating speed or direct torque.
Preferably, described generator/motor is induction machine or synchronous motor.
Preferably, described hybrid power machinery also comprises the revolution inverter, turning motor and the slew gear that are connected successively, and described revolution inverter is connected with described super capacitor.
Preferably, described executing agency comprises hydraulic pump, the equipment be connected with hydraulic pump and running gear, and described hydraulic pump is connected with described generator/motor.
Preferably, described equipment comprises swing arm, dipper, scraper bowl.
Relative to prior art, the present invention has following advantage:
(1) by directly controlling SOC value, and using load information as auxiliary control, effectively prevent engine overload, improving precision and security of system;
(2) directly the running status of motor is controlled, do not need DC/DC, reduce costs, improve the reliability of system;
(3) adaptive engine governor control characteristics, improves system versatility.
Accompanying drawing explanation
The accompanying drawing forming 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, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the hybrid excavator of embodiments of the invention;
Fig. 2 is the schematic flow sheet of embodiments of the invention.
Wherein, 101 be motor, 102 be generator/motor, 103 be hydraulic pump, 104 for drive inverter, 105 for revolution inverter, 106 be turning motor, 107 be slew gear, 108 be super capacitor, 109 be voltage sensor, 110 be proportioning valve current sensor, 111 for pressure sensor, 112 is equipment and running gear.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to accompanying drawing, concrete explaination is done to the present invention.
The energy storage device energy control method of a kind of hybrid power machinery of embodiments of the invention, as shown in fig. 1, for hybrid excavator, comprise: motor 101, generator/motor 102, hydraulic pump 103, drive inverter 104, revolution inverter 105, turning motor 106, slew gear 107, super capacitor 108, voltage sensor 109, proportioning valve current sensor 110, pressure sensor 111, equipment (swing arm, dipper, scraper bowl) and running gear (left lateral is walked, right lateral walk) 112.
Motor 101, generator/motor 202, hydraulic pump 103 coaxially connect, and turning motor 106 and slew gear 107 are mechanically connected.
Hydraulic pump 103 is connected with each equipment and running gear respectively by pipe arrangement, for equipment and running gear work provide hydraulic power.
Inverter 104 is driven to provide control instruction for drive motors 102 works; Revolution inverter 105 provides control instruction for turning motor 106 works.Turning motor 106 drives slew gear 107 to rotate, thus hydraulic crawler excavator upper brace is rotated.
Super capacitor 108 provides energy for driving inverter 104, generator/motor 102 and revolution inverter 105, turning motor 106, makes it electronic work; Meanwhile, the electric energy that generator/motor 102, turning motor 106 send is put aside.
In an embodiment of the present invention, drive inverter 104 to control the duty of generator/motor 102, duty comprises motoring condition, generating state and neither electronic also not generating state, and embodiments of the invention method comprises:
Step 1, by each sensor image data, the bearing power of estimation hybrid power machinery, and estimate the SOC value of super capacitor;
Step 2, is divided into basic, normal, high by the SOC value of super capacitor, when preferred SOC value is in 0 ~ 30%, 30% ~ 60%, 60% ~ 1, is divided into basic, normal, high respectively; Bearing power is divided into large and small;
Step 3, judges by the match condition of SOC value and bearing power the duty determining generator/motor 102:
When SOC value is low, when bearing power is large, dynamoelectric machine 102 is in neither electronic also not generating state, and now bearing power is all provided by motor 101; Bearing power hour, dynamoelectric machine 102 is in generating state, and now SOC value increases, and motor 101 rotating speed is steady;
When in SOC value, the permanent rotating speed of dynamoelectric machine 102 runs, and when bearing power is large, dynamoelectric machine 102 is in motoring condition; Bearing power hour, dynamoelectric machine 102 is in generating state;
When SOC value is high, no matter bearing power large or hour, dynamoelectric machine 102 is in motoring condition;
Step 4, drives inverter 104 to control the duty of generator/motor 102 according to the judgement of step 3.
Idiographic flow is according to shown in Fig. 2:
(1) the busbar voltage even load information of hybrid power machinery is gathered;
(2) SOC value estimation, bearing power is estimated;
(3) judge that SOC value is low, be, judge bearing power, if generator/motor 102 is in neither electronic also not generating state when bearing power is large, if bearing power is little or for time large, generator/motor 102 is in generating state;
(4) judging in SOC value, is that then the permanent rotating speed of generator/motor 102 runs;
(5) judge that SOC value is high, be, generator/motor 102 is in motoring condition;
(6) control instruction generates;
(7) carry out generator/motor 102 by controller to drive;
(8) as found, hybrid power machine work is abnormal, then carry out abnormality processing.
Can divide according to service condition the division of SOC value in technical scheme of the present invention, simultaneously to the control mode of generator/motor be also change, the rotating speed used except embodiments of the invention controls to adopt direct torque mode, and the selection of generator/motor is also not only only induction machine and can chooses synchronous motor equally.
To sum up, embodiments of the invention carry out dynamic calculation to bearing power while carrying out SOC value controlling in real time, the duty of generator/motor is judged with the combination of SOC value and bearing power, prevent engine overload from improving complete machine rate of economizing gasoline, adaptive engine governor control characteristics simultaneously, improves system versatility.
Be described in detail specific embodiments of the invention above, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and substituting also all among category of the present invention.Therefore, equalization conversion done without departing from the spirit and scope of the invention and amendment, all should contain within the scope of the invention.

Claims (10)

1. the energy storage device energy control method of a hybrid power machinery, described hybrid power machinery comprises motor (101) connected successively, generator/motor (102) and executing agency, and by super capacitor (108) that controller is connected with generator/motor (102), described controller controls the duty of described generator/motor (102), described duty comprises motoring condition, generating state and neither electronic also not generating state, it is characterized in that, described method comprises:
Step 1, calculates the described bearing power of hybrid power machinery and the SOC value of super capacitor;
Step 2, is divided into basic, normal, high by the SOC value of described super capacitor (108); Described bearing power is divided into large and small;
Step 3, the duty determining described generator/motor (102) is judged: when SOC value is low by the match condition of described SOC value and bearing power, when bearing power is large, described dynamoelectric machine (102) is in neither electronic also not generating state; Bearing power hour, described dynamoelectric machine (102) is in generating state; When in SOC value, when bearing power is large, described dynamoelectric machine (102) is in motoring condition; Bearing power hour, described dynamoelectric machine (102) is in generating state; When SOC value is high, bearing power large or hour, described dynamoelectric machine (102) is in motoring condition;
Step 4, described controller controls the duty of described generator/motor (102) according to the judgement of step 3.
2. the energy storage device energy control method of hybrid power machinery as claimed in claim 1, is characterized in that, when the SOC value in described step 2 is in 0 ~ 30%, 30% ~ 60%, 60% ~ 1, be divided into basic, normal, high respectively.
3. the energy storage device energy control method of hybrid power machinery as claimed in claim 1, is characterized in that, be also provided with data pick-up in described hybrid power machinery, by data computational load power that described data pick-up gathers in described step 1.
4. the energy storage device energy control method of hybrid power machinery as claimed in claim 3, it is characterized in that, described data pick-up comprises voltage sensor (109), current sensor (110) and pressure sensor (111).
5. the energy storage device energy control method of hybrid power machinery as claimed in claim 1, is characterized in that, described controller is for driving inverter (104).
6. the energy storage device energy control method of hybrid power machinery as claimed in claim 5, is characterized in that, described step 4 middle controller is by controlling the duty of generator/motor (102) described in rotating speed or direct torque.
7. the energy storage device energy control method of hybrid power machinery as claimed in claim 1, it is characterized in that, described generator/motor (102) is induction machine or synchronous motor.
8. the energy storage device energy control method of hybrid power machinery as claimed in claim 1, it is characterized in that, described hybrid power machinery also comprises the revolution inverter (105), turning motor (106) and the slew gear (107) that are connected successively, and described revolution inverter (105) is connected with described super capacitor (108).
9. the energy storage device energy control method of hybrid power machinery as claimed in claim 1, it is characterized in that, described executing agency comprises hydraulic pump (103), the equipment be connected with hydraulic pump (103) and running gear (112), and described hydraulic pump (103) is connected with described generator/motor (102).
10. the energy storage device energy control method of hybrid power machinery as claimed in claim 9, it is characterized in that, described equipment comprises swing arm, dipper, scraper bowl.
CN201310202567.2A 2013-05-27 2013-05-27 A kind of energy storage device energy control method of hybrid power machinery Active CN103255801B (en)

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CN201310202567.2A CN103255801B (en) 2013-05-27 2013-05-27 A kind of energy storage device energy control method of hybrid power machinery
PCT/CN2014/076831 WO2014190842A1 (en) 2013-05-27 2014-05-06 Hybrid power machine, hybrid power system and energy control method therefor

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CN103255801B (en) * 2013-05-27 2015-08-26 上海华兴数字科技有限公司 A kind of energy storage device energy control method of hybrid power machinery
CN103790205B (en) * 2014-02-14 2016-11-02 上海华兴数字科技有限公司 Hybrid construction machine and energy-saving control method thereof
DE202015008403U1 (en) * 2015-09-18 2016-12-20 Liebherr-Components Biberach Gmbh Electrically powered work machine with reverse power storage
US10479348B2 (en) * 2016-02-16 2019-11-19 Ford Global Technologies, Llc Hybrid vehicle and method of reducing engine lugging
CN112977154B (en) * 2019-12-17 2023-02-21 联合汽车电子有限公司 Electric energy management method and system based on driver operation behavior prediction and automobile
CN111945803A (en) * 2020-08-25 2020-11-17 中国铁建重工集团股份有限公司 Shovel loader

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