CN113765202A - Automatic charging system of overhead working truck and control method thereof - Google Patents
Automatic charging system of overhead working truck and control method thereof Download PDFInfo
- Publication number
- CN113765202A CN113765202A CN202111067488.6A CN202111067488A CN113765202A CN 113765202 A CN113765202 A CN 113765202A CN 202111067488 A CN202111067488 A CN 202111067488A CN 113765202 A CN113765202 A CN 113765202A
- Authority
- CN
- China
- Prior art keywords
- charging system
- automatic charging
- control valve
- generator
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004146 energy storage Methods 0.000 claims abstract description 33
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 claims description 36
- 239000010720 hydraulic oil Substances 0.000 claims description 13
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000010705 motor oil Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 description 4
- 239000010729 system oil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1407—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle on vehicles not being driven by a motor, e.g. bicycles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
- B66F11/046—Working platforms suspended from booms of the telescoping type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
-
- 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
Abstract
The application relates to an automatic charging system of an overhead working truck and a control method thereof, wherein the automatic charging system of the overhead working truck comprises a power device, a control device, a generator and an energy storage device, wherein the power device comprises an engine, a hydraulic pump, a control valve component and a hydraulic motor; the engine, the hydraulic pump, the control valve assembly and the hydraulic motor are sequentially connected; the control device comprises a working bucket controller, a rotating speed sensor and an output voltage stabilizing device, wherein the working bucket controller is respectively connected with the control valve component, the rotating speed sensor, the output voltage stabilizing device and the unloading controller; the rotating speed sensor and the output voltage stabilizing device are respectively connected with the generator, and the generator is connected with the energy storage device. The application also comprises a control method of the automatic charging system of the aerial work platform, and when the electric quantity of the energy storage device is low, the automatic charging system of the aerial work platform charges the energy storage device until the charging is finished. The power utilization equipment on the high-altitude operation vehicle can continuously and normally use power, does not need to be shut down to replace batteries, and improves the working efficiency.
Description
Technical Field
The application relates to an automatic charging system of an overhead working truck and a control method thereof, which are mainly suitable for automatically charging the overhead working truck.
Background
At present, a high-altitude operation vehicle is generally provided with a plurality of electric equipment on a working bucket, such as a working bucket controller, a sensor, a display screen, an illuminating lamp and the like. In order to meet the electricity utilization requirement of the overhead working truck. In the prior art, a battery is usually arranged on the working bucket to supply power to the electric equipment, and the electric equipment on the working bucket is maintained to normally work by replacing a standby battery. However, the method for replacing the battery in the related art cannot meet the requirement of uninterrupted operation during the high-altitude operation, and the battery and the standby power consumption are easy to cause the situation that the operation cannot be continued, so that the normal operation of the high-altitude operation vehicle is influenced.
Disclosure of Invention
The technical problem solved by the application is to overcome the defects in the prior art, and provide the automatic charging system of the overhead working truck and the control method thereof, which have the advantages of simple structure and automation, so that the electric equipment on the overhead working truck can be normally powered on for a long time without interruption, the battery does not need to be stopped and replaced, and the working efficiency of the overhead working truck is improved.
The technical scheme adopted by the application for solving the technical problems comprises the following steps: an automatic charging system of an aerial work vehicle comprises a power device, a control device, a generator and an energy storage device, and is characterized in that the power device comprises an engine, a hydraulic pump, a control valve component and a hydraulic motor; the engine, the hydraulic pump, the control valve assembly and the hydraulic motor are sequentially connected; the control device comprises a working bucket controller, a rotating speed sensor and an output voltage stabilizing device, wherein the working bucket controller is respectively connected with the control valve component, the rotating speed sensor, the output voltage stabilizing device and the unloading controller; the rotating speed sensor and the output voltage stabilizing device are respectively connected with the generator, and the generator is connected with the energy storage device and charges.
The hydraulic circuit of the automatic charging system of the aerial work platform is a part of the hydraulic circuit of the aerial work platform, the hydraulic pump, the main oil circuit of the aerial work platform, the oil circuit of the automatic charging system, the control valve assembly, the hydraulic motor, the oil return circuit of the aerial work platform, the cooler of the aerial work platform and the hydraulic oil tank of the aerial work platform are sequentially communicated in a circulating mode, the structure is simple, the cost is low, the efficiency is high, other oil circuits of the aerial work platform are connected with the oil circuit of the automatic charging system in parallel, and the aerial work platform can be automatically charged when being positioned or operated.
The application engine, hydraulic pump all install on the high altitude construction car, and control valve subassembly, hydraulic motor, generator, energy memory, controlling means all install on the work fill.
The control valve assembly consists of a proportional reversing valve and an overflow valve, an oil way of the automatic charging system is connected with the proportional reversing valve and an inlet of the overflow valve, an outlet of the proportional reversing valve is connected with a hydraulic motor, an outlet of the overflow valve is connected with an overflow port of the proportional reversing valve and an oil return path of the overhead working truck, and a working bucket controller of the overflow valve is connected with a proportional reversing valve core, so that the valve core generates a corresponding opening and keeps the opening stable according to the magnitude of control current output by the working bucket controller. The overflow valve plays the role of protecting the system and stabilizing the pressure, and provides a stable pressure difference for the proportional directional valve through pressure limiting, so that the flow control is more accurate.
The application the energy storage device adopts a rechargeable battery.
The technical scheme that this application solved above-mentioned technical problem and adopted still includes: the control method of the automatic charging system of the overhead working truck is characterized by comprising the following steps of:
s1, if the working bucket controller detects that the electric quantity of the energy storage device is low, the working bucket controller sends a signal to a controller for getting off;
s2, the vehicle controller starts an engine, and hydraulic oil is conveyed from a hydraulic oil tank of the overhead working truck to a control valve component on a working bucket through a hydraulic pump, a main oil way of the overhead working truck and an oil way of an automatic charging system;
s3, when oil is fed from the lower vehicle to the working bucket, the working bucket controller energizes the control valve component, and the hydraulic motor drives the generator to rotate to charge the energy storage device; the working bucket controller detects the rotating speed of the generator through a rotating speed sensor and controls the generator to stably charge the energy storage device through an output voltage stabilizing device; when the abnormal rotating speed of the generator is detected, the speed is regulated by controlling the control valve component; when the work bucket controller detects that the energy storage device is full of electricity, the work bucket controller closes the control valve assembly to stop charging, and sends a signal to a controller of the vehicle.
Compared with the prior art, the automatic charging system has the advantages that the electric equipment on the overhead working truck can be normally powered on continuously for a long time, the battery does not need to be replaced by stopping, the working efficiency of the overhead working truck is improved, the oil way of the automatic charging system is connected with other oil ways of the overhead working truck in parallel, and hydraulic charging and other operations can be carried out simultaneously.
Drawings
Fig. 1 is a schematic block diagram of an automatic charging system of an aerial work platform according to an embodiment of the present application;
FIG. 2 is a hydraulic schematic diagram of an automatic charging system of an aerial lift truck according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an aerial cage according to an embodiment of the present application.
Description of reference numerals:
the system comprises a power device 10, an engine 11, a hydraulic pump 12, a control valve assembly 13, a proportional reversing valve 131, an overflow valve 132, a hydraulic motor 14, a generator 20, an energy storage device 30, a control device 40, a bucket controller 41, a rotating speed sensor 42, an output pressure stabilizing device 43, an overhead working truck cooler 16, an overhead working truck hydraulic oil tank 17, an overhead working truck main oil way 18, other oil ways 181 of the overhead working truck except for an automatic charging system oil way 19, an overhead working truck oil way 21, a bucket 50, a working arm 60 and a lower vehicle controller 70.
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings by way of examples, which are illustrative of the present application and are not limited to the following examples.
It should be noted that the automatic charging system in the present application is mainly applied to an aerial work vehicle, and the automatic charging system in the present application provides stable electric energy for the energy storage device 30 in the working bucket of the aerial work vehicle, so as to meet the power consumption requirement on the working bucket of the aerial work vehicle, and ensure that the power consumption equipment on the working bucket of the aerial work vehicle can maintain normal work for a long time.
Referring to fig. 1 and 2, the present application provides an automatic charging system for an aerial work vehicle, in an exemplary embodiment, a power plant 10 includes an engine 11, a hydraulic pump 12, a control valve assembly 13, and a hydraulic motor 14, the control valve assembly 13 being connected to the hydraulic pump 12 and the hydraulic motor 14, respectively, the engine 11 being connected to the hydraulic pump 12 for powering the hydraulic motor 14; the hydraulic motor 14 is connected with the generator 20, the generator 20 is connected with the energy storage device 30, the control device 40 comprises a bucket controller 41, a rotating speed sensor 42 and an output voltage stabilizer 43, the bucket controller 41 is respectively connected with the rotating speed sensor 42, the output voltage stabilizer 43 and the control valve assembly 13, the rotating speed sensor 42 is connected with the generator 20 and used for detecting the rotating speed of the generator 20, and the output voltage stabilizer 43 is connected with the generator 20 and used for controlling the output voltage of the generator 20. The hydraulic circuit of the automatic transmission system is a part of the hydraulic circuit of the aerial work platform (namely, the initial oil circuit of the automatic charging system is the main oil circuit 18 of the aerial work platform, and the return oil circuit of the automatic charging system is the return oil circuit 21 of the aerial work platform), the structure is simple, the cost is low, the efficiency is high, and the hydraulic pump 12, the main oil circuit 18 of the aerial work platform, the oil circuit 19 of the automatic charging system, the control valve component 13, the hydraulic motor 14, the return oil circuit 21 of the aerial work platform, the cooler 16 of the aerial work platform and the hydraulic oil tank 17 of the aerial work platform are sequentially communicated in a circulating mode.
The control valve assembly 13 is composed of a proportional reversing valve 131 and an overflow valve 132, the proportional reversing valve 131 is a PDVA-N series valve produced by Germany BMEG, and the proportional reversing valve 131 is a direct-acting plate-type installation open-loop control proportional valve. The proportional directional valve core is driven to move a corresponding distance by the driving current output by the working bucket controller 41, so that the valve core generates a corresponding opening and keeps the opening stable. The bucket controller 41 varies the magnitude of the control current, i.e., proportionally varies the size of the spool opening of the proportional directional valve 131 accordingly, thereby varying and controlling the flow through the spool. The overflow valve 132 acts to protect the system and stabilize the pressure, providing a stable pressure differential to the proportional directional valve by limiting pressure, thereby making the control flow more accurate.
In the above arrangement, the power hydraulic source is provided by the engine 11 and the hydraulic pump 12, the bucket controller 41 can detect the electric quantity of the energy storage device 30, when the electric quantity of the energy storage device 30 is detected to be lower than the set value, the bucket controller 41 controls the flow rate flowing to the hydraulic motor 14 through the control valve assembly 13, so as to control the rotating speed of the hydraulic motor 14 and the generator 20 connected with the hydraulic motor, and controls the output voltage and current through the output voltage stabilizing device 43, for charging the energy storage device 30, while the rotation speed sensor 42 is used for detecting the rotation speed of the generator 20, when the rotating speed of the generator 20 is too high or too low, the rotating speed and the output voltage and current of the generator 20 are correspondingly changed by adjusting the control valve assembly 13, so that the energy storage device 30 is ensured to have enough electric quantity reserve at all times, thereby meeting the power consumption requirement of the electric equipment connected with the energy storage device 30 on the working bucket of the high-altitude operation vehicle. The overhead working truck oil return 21 and the automatic charging system oil return are collected in the overhead working truck cooler 16 and return to the overhead working truck hydraulic oil tank 17 together. Other oil passages 181 of the aerial work platform are connected in parallel with the automatic charging system oil passage 19, and automatic charging can be performed while aerial work is performed.
Specifically, as shown in fig. 3, in the embodiment of the present application, a working bucket controller 41, a rotation speed sensor 42, a voltage stabilizer 43, a generator 20, a control valve 13, a hydraulic motor 14, and an energy storage device 30 (a rechargeable battery in a specific example) are disposed on a working bucket 50, an automatic charging system oil path 19 is disposed in a working arm 60 as a part of a hydraulic system of the aerial work vehicle, an aerial work vehicle cooler 16 is disposed near a hydraulic oil tank 17 of the aerial work vehicle, and a lower vehicle controller 70 is a main controller of the aerial work vehicle.
The control method of the automatic charging system of the overhead working truck comprises the following steps:
when the working bucket controller 41 on the working bucket 50 detects that the electric quantity of the energy storage device 30 is low, the working bucket controller 41 sends a signal to the lower vehicle controller 70, the lower vehicle controller 70 controls the hydraulic pump 12 to output hydraulic oil under the driving of the engine 11, the hydraulic oil is conveyed to the control valve component 13 on the working bucket 50 from the hydraulic oil tank 17 of the overhead working truck through the main oil way 18 of the overhead working truck and the oil way 19 of the automatic charging system to penetrate through the working arm 60, the working bucket controller 41 energizes the control valve component 13, and then the hydraulic motor 14 drives the generator 20 to rotate to send a voltage current signal to charge the energy storage device 30. In the charging process, the bucket controller 41 detects the rotation speed of the generator 20 through the rotation speed sensor 42, controls the voltage from the generator 20 to the energy storage device 30 to be stabilized within a certain range through the output voltage stabilizing device 43, controls the control valve 13 to regulate the speed when the rotation speed of the generator 20 is detected to be abnormal, so as to form closed-loop control, and controls the control valve assembly 13 to cut off the power supply and stop charging and send a signal to the next-vehicle controller 70 when the bucket controller 41 detects that the energy storage device 30 is fully charged.
To sum up, the automatic charging system of high altitude construction car that this application embodiment provided has following advantage:
1. the charging equipment is connected into the hydraulic system by combining the hydraulic system of the existing overhead working truck and the energy storage device of the working bucket, so that the existing resources are reasonably utilized.
2. The control device is used for detecting the electric quantity state of the energy storage device, the control valve assembly is used for enabling the charging device to work, and when the load changes, the control valve assembly can be used for adjusting the power of the charging device.
3. The control device monitors the voltage and current signals of the charging equipment in real time, has an overvoltage and overcurrent protection function, and can cut off the hydraulic source through the control valve assembly in emergency.
4. The whole system can maintain that the energy storage device of the working bucket part always has enough electric quantity for the electric equipment to use.
All simple variations and combinations of the technical features and technical solutions of the present application are considered to fall within the scope of the present application.
Claims (5)
1. The utility model provides an automatic charging system of high altitude construction car, includes power device, controlling means, generator, energy memory, characterized by: the power device comprises an engine, a hydraulic pump, a control valve assembly and a hydraulic motor; the engine, the hydraulic pump, the control valve assembly and the hydraulic motor are sequentially connected; the control device comprises a working bucket controller, a rotating speed sensor and an output voltage stabilizing device, wherein the working bucket controller is respectively connected with the control valve component, the rotating speed sensor, the output voltage stabilizing device and the unloading controller; the rotating speed sensor and the output voltage stabilizing device are respectively connected with the generator, and the generator is connected with the energy storage device.
2. The automatic charging system of the aerial lift truck as claimed in claim 1, wherein: the hydraulic circuit of the automatic charging system of the aerial work platform is a part of the hydraulic circuit of the aerial work platform, the hydraulic pump, the main oil circuit of the aerial work platform, the oil circuit of the automatic charging system, the control valve component, the hydraulic motor, the oil return circuit of the aerial work platform, the cooler of the aerial work platform and the hydraulic oil tank of the aerial work platform are sequentially communicated in a circulating manner, and other oil circuits of the aerial work platform are connected with the oil circuit of the automatic charging system in parallel.
3. The automatic charging system of the aerial lift truck as claimed in claim 2, wherein: the control valve assembly consists of a proportional reversing valve and an overflow valve, an oil way of the automatic charging system is connected with the proportional reversing valve and an inlet of the overflow valve, an outlet of the proportional reversing valve is connected with the hydraulic motor, an outlet of the overflow valve is connected with an overflow port of the proportional reversing valve and an oil return path of the overhead working truck, and an overflow valve working bucket controller is connected with a proportional reversing valve core.
4. The automatic charging system of the aerial lift truck as claimed in claim 1, wherein: the engine and the hydraulic pump are both installed on the overhead working truck, and the control valve assembly, the hydraulic motor, the generator, the energy storage device and the control device are all installed on the working bucket.
5. The control method of the automatic charging system of the aerial lift truck as claimed in any one of claims 1 to 4, characterized by comprising the steps of:
s1, if the working bucket controller detects that the electric quantity of the energy storage device is low, the working bucket controller sends a signal to a controller for getting off;
s2, the vehicle controller starts an engine, and hydraulic oil is conveyed from a hydraulic oil tank of the overhead working truck to a control valve component on a working bucket through a hydraulic pump, a main oil way of the overhead working truck and an oil way of an automatic charging system;
s3, when oil is fed from the lower vehicle to the working bucket, the working bucket controller energizes the control valve component, and the hydraulic motor drives the generator to rotate to charge the energy storage device; the working bucket controller detects the rotating speed of the generator through a rotating speed sensor and controls the generator to stably charge the energy storage device through an output voltage stabilizing device; when the abnormal rotating speed of the generator is detected, the speed is regulated by controlling the control valve component; when the work bucket controller detects that the energy storage device is full of electricity, the work bucket controller closes the control valve assembly to stop charging, and sends a signal to a controller of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111067488.6A CN113765202A (en) | 2021-09-13 | 2021-09-13 | Automatic charging system of overhead working truck and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111067488.6A CN113765202A (en) | 2021-09-13 | 2021-09-13 | Automatic charging system of overhead working truck and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113765202A true CN113765202A (en) | 2021-12-07 |
Family
ID=78795240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111067488.6A Pending CN113765202A (en) | 2021-09-13 | 2021-09-13 | Automatic charging system of overhead working truck and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113765202A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08103035A (en) * | 1994-09-29 | 1996-04-16 | Tadano Ltd | Failure alarm device for charging apparatus |
| JP2014027850A (en) * | 2012-07-30 | 2014-02-06 | Aichi Corp | Charger for working vehicle |
| CN205257933U (en) * | 2015-12-22 | 2016-05-25 | 杭州爱知工程车辆有限公司 | High altitude construction car hydraulic pressure is from power generation system |
| CN108321711A (en) * | 2018-03-30 | 2018-07-24 | 徐州徐工随车起重机有限公司 | A kind of aerial lift device with insulated arm automatic charging system |
| CN113294399A (en) * | 2021-07-27 | 2021-08-24 | 徐州海伦哲特种车辆有限公司 | Double-hydraulic-energy power generation device of insulating overhead working truck and control method |
| CN216038084U (en) * | 2021-09-13 | 2022-03-15 | 杭州爱知工程车辆有限公司 | Automatic charging system of overhead working truck |
-
2021
- 2021-09-13 CN CN202111067488.6A patent/CN113765202A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08103035A (en) * | 1994-09-29 | 1996-04-16 | Tadano Ltd | Failure alarm device for charging apparatus |
| JP2014027850A (en) * | 2012-07-30 | 2014-02-06 | Aichi Corp | Charger for working vehicle |
| CN205257933U (en) * | 2015-12-22 | 2016-05-25 | 杭州爱知工程车辆有限公司 | High altitude construction car hydraulic pressure is from power generation system |
| CN108321711A (en) * | 2018-03-30 | 2018-07-24 | 徐州徐工随车起重机有限公司 | A kind of aerial lift device with insulated arm automatic charging system |
| CN113294399A (en) * | 2021-07-27 | 2021-08-24 | 徐州海伦哲特种车辆有限公司 | Double-hydraulic-energy power generation device of insulating overhead working truck and control method |
| CN216038084U (en) * | 2021-09-13 | 2022-03-15 | 杭州爱知工程车辆有限公司 | Automatic charging system of overhead working truck |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108556644B (en) | A kind of hybrid vehicle distance increasing unit power follow-up control method and system | |
| EP2678895B1 (en) | Controlling pem fuel cell voltage during power transitions and idling | |
| CN102887200B (en) | Electric bicycle control system and method | |
| CN101711221B (en) | A full hydraulic AC electrical forklift | |
| JP2003086212A (en) | Fuel cell controlling system | |
| CN103231662A (en) | Control method of high reliability fuel cell car power system | |
| KR102249662B1 (en) | Marine integrated power control management system | |
| CN109435780A (en) | A kind of standby energy storage type Vehicular fuel cell hybrid power system and control method | |
| CN106602585A (en) | Power supply system and operation method of intelligent peak shifting and valley filling superimposed photovoltaic power generation | |
| CN105896976A (en) | Control method for DC-DC converter of fuel cell vehicle | |
| CN216038084U (en) | Automatic charging system of overhead working truck | |
| CN112677781A (en) | Hybrid power supply system based on fuel cell and energy storage battery and automobile | |
| CN105119297A (en) | Method used for adaptive reactive power compensation of photovoltaic inverter | |
| CN113765202A (en) | Automatic charging system of overhead working truck and control method thereof | |
| CN101572428B (en) | Method for controlling power supply system featuring complementation of solar energy and fuel energy | |
| CN110341504B (en) | Range-extending electric vehicle power system and control method thereof | |
| US20180171592A1 (en) | Control device and control method for construction machine | |
| CN204103525U (en) | Two lithium battery power supply power supplys of blood-collecting car and blood sampling mobile unit | |
| CN204828087U (en) | Down sealing -tape machine disc brake hydraulic control system | |
| CN113954773A (en) | Low-voltage power supply device for commercial vehicle | |
| CN101581945B (en) | Voltage regulating method, device and system | |
| CN113581007B (en) | Driving charging system of lithium battery pack standby power supply and control method | |
| CN219971531U (en) | Bypass emergency rescue control system for high-speed elevator | |
| CN114084043B (en) | Battery management system, battery management method, and electric vehicle | |
| CN115805966B (en) | New energy monorail crane vehicle power system and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |