CN109149738B - Energy management method and device and mobile charging vehicle - Google Patents

Energy management method and device and mobile charging vehicle Download PDF

Info

Publication number
CN109149738B
CN109149738B CN201811061652.0A CN201811061652A CN109149738B CN 109149738 B CN109149738 B CN 109149738B CN 201811061652 A CN201811061652 A CN 201811061652A CN 109149738 B CN109149738 B CN 109149738B
Authority
CN
China
Prior art keywords
power
output
unit
electric energy
power generation
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.)
Active
Application number
CN201811061652.0A
Other languages
Chinese (zh)
Other versions
CN109149738A (en
Inventor
谭卓辉
刘源
艾永夫
张书常
何旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIO Holding Co Ltd
Original Assignee
Weilai Holdings Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weilai Holdings Ltd filed Critical Weilai Holdings Ltd
Priority to CN201811061652.0A priority Critical patent/CN109149738B/en
Publication of CN109149738A publication Critical patent/CN109149738A/en
Application granted granted Critical
Publication of CN109149738B publication Critical patent/CN109149738B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H02J7/1469—Regulation of the charging current or voltage otherwise than by variation of field
    • H02J7/1492—Regulation of the charging current or voltage otherwise than by variation of field by means of controlling devices between the generator output and the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/52—Mobile units, e.g. for work sites
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to the technology of new energy automobiles, in particular to an electric energy amplitude limiting device and method for a mobile charging vehicle and the mobile charging vehicle comprising the electric energy amplitude limiting device. The electric energy limiting apparatus according to the present invention comprises: an input module configured to receive an operating state parameter associated with an engine; a processing module configured to determine an available power generation capacity (p.genpwrmax) or an optimized power generation capacity (p.genpwrpot) of the power take-off power generation unit depending on the operational status parameter, and to determine a range of output power (P11, P12) of the power output unit depending on the available power generation capacity (p.genpwrmax) or the optimized power generation capacity (p.genpwrpot) for different operation modes; and an output module configured to output the determined range of output power (P11, P12).

Description

Energy management method and device and mobile charging vehicle
Technical Field
The invention relates to the technology of new energy automobiles, in particular to an electric energy amplitude limiting device and method for a mobile charging vehicle and the mobile charging vehicle comprising the electric energy amplitude limiting device.
Background
In recent years, with the rapid development of the electric vehicle market, urban charging facilities are not constructed in place, and charging support of medium-long distance/special lines, large-scale activity logistics and the like is increasingly difficult, so that the mobile charging vehicle gradually becomes an important part of a charging support network.
According to the operation mode division, the mobile charging vehicle generally comprises a fuel vehicle type with an energy storage battery, an electric vehicle type with an energy storage battery, a pure power take-off power generation type, a power take-off power generation and energy storage battery type and other types. The mobile charging car based on the power take-off power generation and the energy storage battery well meets the requirements of endurance mileage, energy carrying capacity and high charging power, and is popular among users. However, this mode requires a high level of system control because of the need to consider both engine life and the satisfaction of the charging service.
Disclosure of Invention
An object of the present invention is to provide an electric energy limiting apparatus and method for a mobile charging vehicle, which can improve charging efficiency of the charging vehicle and robustness of a charging process.
The electric energy limiting apparatus for a mobile charging vehicle according to one or more embodiments of the present invention comprises:
an input module configured to receive an operating state parameter associated with an engine;
a processing module configured to determine an available power generation capacity (p.genpwrmax) or an optimized power generation capacity (p.genpwrpot) of the power take-off power generation unit depending on the operational status parameter, and to determine a range of output power (P11, P12) of the power output unit depending on the available power generation capacity (p.genpwrmax) or the optimized power generation capacity (p.genpwrpot) for different operation modes; and
an output module configured to output the determined range of output power (P11, P12).
Preferably, in the above electric power limiting apparatus, the operating state parameter is a rotational speed (ω) of the engine 0 ) Said processing module being configured to determine a rotational speed (ω) of said engine 0 ) To determine the available power generation capacity (p.genpwrmax) or the optimized power generation capacity (p.genpwrpot) of the generators in the power take-off power generating unit.
Preferably, in the above power limiting apparatus, the power limiting apparatus is configured to limit the output power of the generator in the power take-off unit according to a rotation speed (ω) of the generator 1 ) Determining the rotational speed (omega) of the engine, the gearbox gear and the transfer case shift position 0 )。
Preferably, in the above power limiting apparatus, the operating condition parameters are a transmission gear and a transfer case shift position, and the processing module is configured to determine an available power generation capacity (p.genpwrmax) or an optimized power generation capacity (p.genpwriopt) of the generator in the power take-off power generation unit according to the transmission gear and the transfer case shift position.
Preferably, in the above power limiter apparatus, the operation mode is a top speed mode in which a range of the output power of the power output unit is determined in accordance with the following manner (P11, P12):
an upper limit (P11) of the output electric power of the electric power output unit is determined according to an available power generation capacity (p.genpwrmax) of the power take-off power generation unit and a maximum value (v.batpwrmax) of the output electric power of the energy storage battery unit, and a minimum value of the output electric power of the electric power output unit is determined as a lower limit (P12) of the output electric power of the electric power output unit.
Preferably, in the above power limiter apparatus, the operation mode is a cruising mode in which a range of the output power of the power output unit is determined in accordance with the following manner (P11, P12):
determining an available power generation capacity (p.genpwrmax) of the power take-off power generation unit as an upper limit of output power of the power output unit (P11), and determining a minimum value of the output power of the power output unit as a lower limit of the output power of the power output unit (P12).
Preferably, in the above power limiting apparatus, the operation mode is an economy mode in which a range of the output power of the power output unit is determined (P11, P12) in accordance with:
an upper limit (P11) of the output power of the power output unit is determined according to the optimized power generation capability (p.genpwrpot) of the power take-off power generation unit and the maximum value (v.batpwrmax) of the output power of the energy storage battery unit, and a lower limit (P12) of the output power of the power output unit is determined according to the optimized power generation capability (p.genpwrpot) of the power take-off power generation unit and the minimum value (v.batpwrman) of the output power of the energy storage battery unit.
Preferably, in the above power limiter apparatus, the operation mode is a battery life mode in which a range of the output power of the power output unit is determined in accordance with the following manner (P11, P12):
performing a clipping operation on the optimized value (v.batpwrcmd0) of the output power of the energy storage battery unit to determine a set value (P31) of the output power of the energy storage battery unit, wherein an upper limit of the clipping operation is determined by a charging demand (P10) and a lower limit is determined by an opposite value of an available power generation capacity (p.genpwrmax) of the power take-off power generation unit;
an upper limit (P11) of the output electric power of the electric power output unit is determined according to the available power generation capacity (p.genpwrmax) of the power take-off power generation unit and a set value (P31) of the output electric power of the energy storage battery unit, and a minimum value of the output electric power of the electric power output unit is determined as a lower limit (P12) of the output electric power of the electric power output unit.
Preferably, in the above power limiting apparatus, the range of the output power of the power output unit is expressed in a power range or a current range.
An energy management method for a mobile charging cart according to one or more embodiments of the present invention includes:
receiving an operating condition parameter associated with an engine;
determining an available power generation capacity (P.GenPwrMax) or an optimized power generation capacity (P.GenPwrOpt) of the power take-off power generation unit from the operating condition parameters;
determining a range of output power of the power output unit (P11, P12) according to the available power generation capacity (P.GenPwrMax) or optimized power generation capacity (P.GenPwrOpt) for different operation modes; and
outputting the determined range of the output power (P11, P12).
Another object of the present invention is to provide a mobile charging cart that can improve the charging efficiency and robustness of the charging process.
According to one or more embodiments of the invention, the mobile charging vehicle comprises:
an engine;
an electric energy output unit;
a power take-off and generation unit coupled with the engine;
an energy storage battery unit;
an electric energy amplitude limiting device; and
a charging management unit coupled to the power output unit and the power limiting device and configured to control a charging process of the electric vehicle by the power output unit,
wherein the power take-off power generation unit and the energy storage battery unit are connected in parallel to the electric energy output unit,
wherein the power limiting apparatus includes:
an input module configured to receive an operating state parameter associated with the engine;
a processing module configured to determine an available power generation capacity (p.genpwrmax) or an optimized power generation capacity (p.genpwrpot) of the power take-off power generation unit depending on the operational status parameter, and to determine a range of output power (P11, P12) of the power output unit depending on the available power generation capacity (p.genpwrmax) or the optimized power generation capacity (p.genpwrpot) for different operation modes; and an output module configured to output the determined range of output power (P11, P12).
Preferably, in the mobile charging cart described above, the power output unit includes a DC/DC module; the power take-off power generation unit includes: a transfer case coupled to an engine, a generator coupled to the transfer case, and an AC/DC module coupled to the generator, the AC/DC module coupled to the DC/DC module of the electrical energy output unit via a common DC bus; the energy storage battery unit comprises an energy storage battery and a bidirectional DC/DC module coupled with the energy storage battery, and the bidirectional DC/DC module is coupled with the DC/DC module of the electric energy output unit through the common direct current bus.
Preferably, in the mobile charging cart described above, the power output unit includes an AC/DC module; the power take-off power generation unit includes: a transfer case coupled to an engine, a generator coupled to the transfer case and an AC/AC module coupled to the generator, the generator coupled to the AC/DC module of the electrical energy output unit via a common AC bus; the energy storage battery unit comprises an energy storage battery and a bidirectional DC/AC module coupled with the energy storage battery, and the bidirectional DC/AC module is coupled with the AC/DC module of the electric energy output unit through the public alternating current bus.
Preferably, in the mobile charging vehicle, the electric energy output unit is a dc or ac charging post.
Compared with the existing mobile charging vehicle, according to one or more embodiments of the invention, through static or dynamic adjustment of the amplitude limit of the electric energy output, the occurrence of events such as overload and flameout of an engine in the charging process can be reduced, the service life of the engine is prolonged, and the satisfaction degree of charging service is improved.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the following description of the various aspects taken in conjunction with the accompanying drawings, in which like or similar elements are designated with like reference numerals. The drawings comprise:
fig. 1 is a schematic block diagram of a mobile charging cart according to an embodiment of the present invention.
Fig. 2 is a schematic block diagram of a mobile charging cart according to another embodiment of the present invention.
Fig. 3 is a schematic block diagram of a power limiting apparatus according to another embodiment of the present invention, which can be applied to the embodiments shown in fig. 1 and 2.
Fig. 4 is a diagram illustrating a range of output power of the power output unit determined in the turbo mode (a).
Fig. 5 is a schematic diagram illustrating the determination of the output power range of the power output unit in the cruising mode (b).
Fig. 6 is a diagram illustrating a determination of an output power range of the power output unit in the economy mode (c).
Fig. 7 is a diagram illustrating the determination of the output power range of the power output unit in the battery life mode (d).
Fig. 8 is a flowchart of an energy management method for a mobile charging cart according to another embodiment of the present invention.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. The embodiments described above are intended to provide a full and complete disclosure of the present invention to more fully convey the scope of the invention to those skilled in the art.
In the present specification, words such as "comprise" and "comprises" mean that, in addition to elements and steps directly and unequivocally stated in the specification and claims, the technical solution of the present invention does not exclude other elements and steps not directly or unequivocally stated.
Terms such as "first" and "second" do not denote an order of the elements in time, space, size, etc., but rather are used to distinguish one element from another.
In the following description, the term "operating condition parameters associated with the engine" should be broadly construed to refer to various condition parameters of engine operation, including, for example and without limitation, one or more of the following: the engine speed (which may be measured directly or estimated based on generator state parameters), the transmission gear and transfer case shift position, etc.
Fig. 1 is a schematic block diagram of a mobile charging cart according to an embodiment of the present invention.
The mobile charging cart 10 shown in fig. 1 includes a power output unit 110, an engine 120, a power take-off unit 130, an energy storage battery unit 140, a power limiting device 150, a charge management unit 160, first, second, and third controllers 170A, 170B, and 170C, and an Electronic Control Unit (ECU) 180.
In the mobile charging cart 10 shown in fig. 1, the power output unit 110 illustratively includes a DC/DC module 111 that converts DC outputs from the power take-off and generation unit 120 and the energy storage battery unit 130 to a DC voltage range suitable for charging. Optionally, the power output unit 110 may also include a DC/AC module to provide AC charging.
As shown in FIG. 1, the power take-off unit 130 includes a transfer case 131 coupled to the engine 120, a generator 132 (e.g., a permanent magnet generator) coupled to the transfer case 131, and an AC/DC module 133 coupled to the generator 132, wherein the AC/DC module 133 is coupled to the DC/DC module 111 of the power output unit 110 via a common DC bus. On the other hand, the energy storage battery unit 140 comprises an energy storage battery 141 and a bidirectional DC/DC module 142 coupled to the energy storage battery 141, wherein the bidirectional DC/DC module 142 is also coupled to the DC/DC module 111 of the power output unit 110 via a common DC bus. Thereby, the power take-off unit 130 and the energy storage battery unit 140 are connected in parallel to the electric energy output unit 110.
It should be noted that the power output of the power take-off unit 130 and the energy storage battery unit 140 may also be in an alternating current form. In this case, the DC/DC module 111 of the power output unit 110 is replaced with an AC/DC module or an AC/AC module, the AC/DC module 133 of the power take-off generation unit 130 is replaced with an AC/AC module, the bidirectional DC/DC module 142 of the energy storage battery unit 140 is replaced with a bidirectional DC/AC module, and the AC/AC module of the power take-off generation unit 130 and the bidirectional DC/AC module of the energy storage battery unit 140 may be connected in parallel to the AC/DC module or the AC/AC module of the power output unit 110 via a common AC bus. In addition, the electrical energy output of the generator 132 may also be coupled directly to the common ac bus.
In the mobile charging cart 10 shown in fig. 1, the power-limiting device 150 is coupled to the ECU 180, which is configured to determine the available power generation capacity p.genpwrmax or the optimized power generation capacity p.genpwrpot of the power take-off power generation unit based on the operating state parameters associated with the engine, and to determine the range of the output power of the power output unit (e.g., the upper limit P11 and the lower limit P12) based on the available power generation capacity p.genpwrmax or the optimized power generation capacity p.genpwrpot for different operating modes. In the present embodiment, the range of the output power of the power output unit is expressed in a power range or a current range.
For example, the available power generation capacity may be an electric energy value of the maximum electric energy that the power take-off power generation unit can generate after deducting auxiliary power consumption, power link loss and the like; the optimized power generation capacity may be the power generated by the power take-off unit when the engine is operating within a particular optimized operating target region (which may be determined based on one or more of fuel consumption, emissions, and durability factors)Auxiliary power consumption, power link loss, etc. In the present embodiment, the operating state parameter is the rotational speed ω of the engine 120 0 Which may be provided by the ECU 180, for example. The electric energy amplitude limiting device 150 can be controlled by the rotating speed omega of the engine 0 To determine the available power generation capacity p.genpwrmax or the optimized power generation capacity p.genpwrpot of the generators in the power take-off power generating unit. Specifically, p.genpwrmax or p.genpwrpot can be determined in the following manner. Firstly, the maximum power generation capacity or rated optimized power generation capacity of a generator in the power take-off power generation unit is determined according to a predetermined engine speed-power curve or engine speed-torque curve, then the auxiliary power supply requirement V.AuxPwr (such as vehicle-mounted illumination and air conditioner power consumption) of the mobile charging vehicle is deducted, and the conversion efficiency eta of the transfer case is counted 1 Conversion efficiency η of AC/DC module 133 and DC/DC module 111 2 Etc., thereby obtaining p.genpwrmax or p.genpwrpopt.
Alternatively, in this embodiment, the operating condition parameters may also be the transmission gear and transfer case shift position (e.g., provided by the ECU 180). In this case, the power-limiting arrangement 150 is configured to determine the available power generation capacity (p.genpwrmax) or the optimized power generation capacity (p.genpwriopt) of the generators in the power take-off power generating unit depending on the gearbox gear and transfer case shift position.
As shown in fig. 1, the power limiting device 150 is coupled to the charging management unit 160 to receive the charging requirement P10 from the charging management unit 160 and indicate the determined range of the output power of the power output unit to the charging management unit 160 so that the charging management unit 160 controls the charging process of the electric vehicle 30 by the power output unit 110 via the third controller 170C.
Fig. 2 is a schematic block diagram of a mobile charging cart according to another embodiment of the present invention.
The mobile charging cart 20 shown in fig. 2 includes an electric energy output unit 210, an engine 220, a power take-off generating unit 230, an energy storage battery unit 240, an electric energy limiting device 250, a charging management unit 260, a first controller 270A, a second controller 270B, a third controller 270C, and a rotation speed conversion unit 280.
In the embodiment shown in FIG. 1By way of example, in the present embodiment, the electrical energy limiting device 250 is coupled to the speed scaling unit 280 to receive the engine speed ω from the speed scaling unit 280 0 Here engine speed ω 0 For the rotation speed conversion unit 280 according to the rotation speed omega of the generator 1 And the conversion value obtained by calculating the gear of the gearbox and the switching position of the transfer case. Likewise, the power-limiting device 150 may be configured to determine the available power generation capacity p.genpwrmax or the optimized power generation capacity p.genpwrpot of the power take-off power generation unit based on the operating state parameters associated with the engine, and to determine the range of the output power of the power output unit based on the available power generation capacity p.genpwrmax or the optimized power generation capacity p.genpwrpot for different operating modes, in the same or similar manner as the embodiment shown in fig. 1.
Fig. 3 is a schematic block diagram of a power limiting apparatus according to another embodiment of the present invention, which can be applied to the embodiments shown in fig. 1 and 2.
The power limiting apparatus 350 shown in fig. 3 includes an input module 351, a processing module 352, and an output module 353. In the electrical energy limiting device 350 shown in fig. 3, the input module 351 is configured to receive operating state parameters associated with the engine (e.g., the aforementioned engine speed and transfer case switch position) from the ECU 180 or the speed scaling unit 280. Further, the input module 351 may also be configured to receive the charging demand P10 from the charging management unit 160.
In the embodiment shown in fig. 3, the input module 351 is further configured to receive an operating mode command M, the features regarding the operating mode being further described below. The operating mode command M may be provided to the input module 351 by an operator via a human-machine interface, or generated and provided to the input module 351 by a mobile charging vehicle (e.g., a vehicle controller) based on the state of the mobile charging vehicle (e.g., energy storage battery operating condition, remaining capacity (SOC), power limits and life requirements, and optimization requirements for engine power and efficiency curves, etc.) and charging requirements.
As shown in fig. 3, the processing module 352 is coupled to an input module 351 that is configured to determine an available power generation capacity p.genpwrmax or an optimized power generation capacity p.genpwrpot of the power take-off power generation unit based on operating state parameters associated with the engine and to determine a range of output power of the power output unit based on the available power generation capacity p.genpwrmax or the optimized power generation capacity p.genpwrpot for different operating modes.
Referring to fig. 3, the output module 353 is coupled with the processing module 352, and is configured to output the range of the output power of the power output unit to the charge management unit 160.
In this embodiment, the operation modes may include the following modes:
(a) the top speed mode: the power taking and generating unit and the energy storage battery simultaneously supply power to the electric energy output unit;
(b) a endurance mode: the power taking and generating unit independently supplies power to the electric energy output unit;
(c) an economic mode: the power take-off power generation unit supplies power to the electric energy output unit and simultaneously charges or discharges the energy storage battery unit; and
(d) battery life mode: the power taking and generating unit supplies power to the electric energy output unit and simultaneously carries out charging or discharging of the energy storage battery in a specific mode.
Various modes of operation are described further below.
Fig. 4 is a diagram illustrating a range of output power of the power output unit in the turbo mode (a).
Referring to fig. 4, an upper limit P11 of the output power of the power output unit (e.g., P11 may be the sum of p.genpwrmax and v.batpwrmax) is determined according to the available power generation capacity p.genpwrmax of the power take-off power generation unit and the maximum value v.batpwrmax of the output power of the energy storage battery unit, and then the minimum value of the output power of the power output unit is determined as a lower limit P12 (e.g., 0) of the output power of the power output unit.
Fig. 5 is a schematic diagram illustrating the determination of the output power range of the power output unit in the cruising mode (b).
Referring to fig. 5, the available power generation capacity p.genpwrmax of the power take-off power generation unit is determined as an upper limit P11 of the output power of the power output unit, and the minimum value of the output power of the power output unit is determined as a lower limit P12 (e.g., 0) of the output power of the power output unit.
Fig. 6 is a diagram illustrating a determination of an output power range of the power output unit in the economy mode (c).
Referring to fig. 6, an upper limit P11 of the output power of the power output unit is determined according to the optimized power generation capability p.genpwrpot of the power take-off power generation unit and the maximum value v.batpwrmax of the output power of the energy storage battery unit (e.g., P11 may be the sum of both p.genpwrpot and v.batpwrmax), and a lower limit P12 of the output power of the power output unit is determined according to the optimized power generation capability p.genpwrpot of the power take-off power generation unit and the minimum value v.batpwrman of the output power of the energy storage battery unit (e.g., P12 may be the sum of both p.genpwrpot and v.batpwrman).
Fig. 7 is a diagram illustrating the determination of the output power range of the power output unit in the battery life mode (d).
Referring to fig. 7, a clipping operation is first performed on the optimized value v.batpwrcmd0 of the output power of the energy storage battery cell to determine the set value P31 of the output power of the energy storage battery cell, wherein the upper limit of the clipping operation is determined by the charge demand P10 and the lower limit is determined by the inverse value of the available power generation capacity p.genpwrmax of the power take-off power generation unit. Subsequently, an upper limit P11(P11 may be, for example, the sum of both p.genpwrmax and P31) of the output electric power of the electric power output unit is determined from the available electric power generation capacity p.genpwrmax of the power take-off electric power generation unit and the set value P31 of the output electric power of the energy storage battery unit, and a minimum value of the output electric power of the electric power output unit is determined as a lower limit P12 (for example, 0) of the output electric power of the electric power output unit.
Fig. 8 is a flowchart of an energy management method for a mobile charging cart according to another embodiment of the present invention. Illustratively, the power limiting apparatus shown in fig. 3 is used as a carrier for the method. It should be noted, however, that the present embodiment is not limited to the power limiting apparatus having the above-described features.
As shown in FIG. 8, the input module 351 receives operating state parameters associated with the engine at step 810.
Proceeding to step 820, the processing module 352 determines the available power generation capacity p.genpwrmax or the optimized power generation capacity p.genpwrpot of the power take-off power generation unit according to the operating state parameters, and determines the range of the output power of the power output unit according to the available power generation capacity p.genpwrmax or the optimized power generation capacity p.genpwrpot for different operating modes.
Then, in step 830, the output module 353 outputs the determined range of the output power.
The embodiments and examples set forth herein are presented to best explain the embodiments in accordance with the present technology and its particular application and to thereby enable those skilled in the art to make and utilize the invention. Those skilled in the art, however, will recognize that the foregoing description and examples have been presented for the purpose of illustration and example only. The description as set forth is not intended to cover all aspects of the invention or to limit the invention to the precise form disclosed.
In view of the foregoing, the scope of the present disclosure is to be determined by the following claims.

Claims (14)

1. An electric energy amplitude limiting device for a mobile charging vehicle, the mobile charging vehicle comprises an electric energy output unit, and a power taking and generating unit and an energy storage battery unit which are connected into the electric energy output unit in parallel, the electric energy amplitude limiting device comprises:
an input module configured to receive operating state parameters associated with an engine;
the processing module is configured to determine the available power generation capacity or the optimized power generation capacity of the power taking and generating unit according to the running state parameters, and determine the range of the output power of the power output unit according to the available power generation capacity or the optimized power generation capacity aiming at different working modes; and
an output module configured to output the determined range of output power.
2. The electrical energy limiting apparatus of claim 1, wherein the operating condition parameter is a rotational speed of an engine, and the processing module is configured to determine an available power generation capacity or an optimized power generation capacity of a generator in the power take-off unit based on the rotational speed of the engine.
3. The electrical energy limiting apparatus of claim 2, wherein the rotational speed of the engine is determined based on a rotational speed of a generator in the power take-off unit, a transmission gear, and a transfer case shift position.
4. The electrical energy limiting apparatus of claim 1 wherein the operating condition parameters are a transmission gear and transfer case shift position, and the processing module is configured to determine the available power generation capacity or the optimized power generation capacity of the generator in the power take-off unit based on the transmission gear and transfer case shift position.
5. The power limiting apparatus of any one of claims 1 to 3, wherein the operation mode is a very fast mode in which a range of the output power of the power output unit is determined in accordance with:
and determining the upper limit of the output electric energy of the electric energy output unit according to the available power generation capacity of the power taking and generating unit and the maximum value of the output electric energy of the energy storage battery unit, and determining the minimum value of the output electric energy of the electric energy output unit as the lower limit of the output electric energy of the electric energy output unit.
6. The power limiting apparatus according to any one of claims 1 to 3, wherein the operation mode is a cruising mode in which a range of the output power of the power output unit is determined in accordance with:
the available power generation capacity of the power take-off power generation unit is determined as an upper limit of the output power of the power output unit, and the minimum value of the output power of the power output unit is determined as a lower limit of the output power of the power output unit.
7. The power limiting apparatus according to any one of claims 1 to 3, wherein the operation mode is an economy mode in which a range of the output power of the power output unit is determined in accordance with:
and determining the upper limit of the output electric energy of the electric energy output unit according to the optimized power generation capacity of the power taking power generation unit and the maximum value of the output electric energy of the energy storage battery unit, and determining the lower limit of the output electric energy of the electric energy output unit according to the optimized power generation capacity of the power taking power generation unit and the minimum value of the output electric energy of the energy storage battery unit.
8. A power limiting arrangement as claimed in any of claims 1 to 3, wherein the operating mode is a battery life mode in which the range of output power of the power output unit is determined in accordance with:
performing a limiting operation on the optimized value of the output electric energy of the energy storage battery unit to determine a set value of the output electric energy of the energy storage battery unit, wherein the upper limit of the limiting operation is determined by the charging requirement, and the lower limit is determined by the opposite value of the available power generation capacity of the power take-off power generation unit;
and determining the upper limit of the output electric energy of the electric energy output unit according to the available power generation capacity of the power take-off power generation unit and the set value of the output electric energy of the energy storage battery unit, and determining the minimum value of the output electric energy of the electric energy output unit as the lower limit of the output electric energy of the electric energy output unit.
9. The power limiting apparatus as claimed in claim 1, wherein the range of the output power of the power output unit is expressed in a power range or a current range.
10. A mobile charging cart, comprising:
an engine;
an electric energy output unit;
a power take-off and generation unit coupled with the engine;
an energy storage battery unit;
an electric energy amplitude limiting device; and
a charging management unit coupled to the power output unit and the power limiting device, and configured to control a charging process of the power output unit to the electric vehicle,
wherein the power take-off power generation unit and the energy storage battery unit are connected in parallel to the electric energy output unit,
wherein the power limiting apparatus includes:
an input module configured to receive an operating state parameter associated with the engine;
the processing module is configured to determine the available power generation capacity or the optimized power generation capacity of the power taking and generating unit according to the running state parameters, and determine the range of the output power of the power output unit according to the available power generation capacity or the optimized power generation capacity aiming at different working modes; and
an output module configured to output the determined range of output power.
11. The mobile charging cart of claim 10, wherein the power output unit comprises a DC/DC module; the power take-off power generation unit includes: a transfer case coupled to an engine, a generator coupled to the transfer case, and an AC/DC module coupled to the generator, the AC/DC module coupled to the DC/DC module of the electrical energy output unit via a common DC bus; the energy storage battery unit comprises an energy storage battery and a bidirectional DC/DC module coupled with the energy storage battery, and the bidirectional DC/DC module is coupled with the DC/DC module of the electric energy output unit through the common direct current bus.
12. The mobile charging cart of claim 10, wherein the power output unit comprises an AC/DC module; the power take-off power generation unit includes: a transfer case coupled to an engine, a generator coupled to the transfer case and an AC/AC module coupled to the generator, the generator coupled to the AC/DC module of the electrical energy output unit via a common AC bus; the energy storage battery unit comprises an energy storage battery and a bidirectional DC/AC module coupled with the energy storage battery, and the bidirectional DC/AC module is coupled with the AC/DC module of the electric energy output unit through the public alternating current bus.
13. The mobile charging vehicle of any one of claims 10 to 12, wherein the power output unit is a dc or ac charging post.
14. An energy management method for a mobile charging vehicle, the mobile charging vehicle comprising a power output unit, and a power take-off unit and an energy storage battery unit connected in parallel to the power output unit, the method comprising:
receiving an operating condition parameter associated with an engine;
determining the available power generation capacity or the optimized power generation capacity of the power taking and generating unit according to the operating state parameters;
determining the range of the output electric energy of the electric energy output unit according to the available generating capacity or the optimized generating capacity aiming at different working modes; and
outputting the determined range of the output power.
CN201811061652.0A 2018-09-12 2018-09-12 Energy management method and device and mobile charging vehicle Active CN109149738B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811061652.0A CN109149738B (en) 2018-09-12 2018-09-12 Energy management method and device and mobile charging vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811061652.0A CN109149738B (en) 2018-09-12 2018-09-12 Energy management method and device and mobile charging vehicle

Publications (2)

Publication Number Publication Date
CN109149738A CN109149738A (en) 2019-01-04
CN109149738B true CN109149738B (en) 2022-09-27

Family

ID=64824884

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811061652.0A Active CN109149738B (en) 2018-09-12 2018-09-12 Energy management method and device and mobile charging vehicle

Country Status (1)

Country Link
CN (1) CN109149738B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111976517B (en) * 2020-07-24 2022-03-01 江铃汽车股份有限公司 Emergency charging system for electric automobile and charging vehicle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008172860A (en) * 2007-01-09 2008-07-24 Yamaha Motor Electronics Co Ltd Charger in vehicle
CN101327794A (en) * 2008-07-14 2008-12-24 北京理工大学 Power backward control method for crawler hybrid power vehicle
CN101918259A (en) * 2007-09-21 2010-12-15 桂林吉星电子等平衡动力有限公司 An economic operation method of an engine having servo control system
CN102593854A (en) * 2012-02-01 2012-07-18 中国电力科学研究院 Method for stabilizing wind power fluctuation under transient time constant of battery energy storage system
CN104659889A (en) * 2015-03-03 2015-05-27 国网电力科学研究院武汉南瑞有限责任公司 Vehicle-mounted electric vehicle rechargeable emergency rescue vehicle based on shaft power-take-off generator as well as working method of rechargeable vehicle
CN105680525A (en) * 2016-04-06 2016-06-15 国网电力科学研究院武汉南瑞有限责任公司 A charging vehicle power supply system based on mixed buses and a control method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209282904U (en) * 2018-09-12 2019-08-20 蔚来汽车有限公司 Electric energy amplitude limiter and movable charging vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008172860A (en) * 2007-01-09 2008-07-24 Yamaha Motor Electronics Co Ltd Charger in vehicle
CN101918259A (en) * 2007-09-21 2010-12-15 桂林吉星电子等平衡动力有限公司 An economic operation method of an engine having servo control system
CN101327794A (en) * 2008-07-14 2008-12-24 北京理工大学 Power backward control method for crawler hybrid power vehicle
CN102593854A (en) * 2012-02-01 2012-07-18 中国电力科学研究院 Method for stabilizing wind power fluctuation under transient time constant of battery energy storage system
CN104659889A (en) * 2015-03-03 2015-05-27 国网电力科学研究院武汉南瑞有限责任公司 Vehicle-mounted electric vehicle rechargeable emergency rescue vehicle based on shaft power-take-off generator as well as working method of rechargeable vehicle
CN105680525A (en) * 2016-04-06 2016-06-15 国网电力科学研究院武汉南瑞有限责任公司 A charging vehicle power supply system based on mixed buses and a control method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
移动救援充电车充电系统设计;姚翔宇等;《中国电力》;20180531;第51卷(第5期);全文 *

Also Published As

Publication number Publication date
CN109149738A (en) 2019-01-04

Similar Documents

Publication Publication Date Title
CN110040004B (en) Power following control method and system of range-extended pure electric vehicle
RU2389618C2 (en) Hybrid power plant (versions) and control method of hybrid power plant power (versions)
CN107757419B (en) Motor efficiency control method and device of electric automobile and vehicle
CN108016303B (en) Apparatus and method for controlling charging of battery of hybrid vehicle
CN108215813A (en) A kind of distance increasing unit control system and control method
CN102608461B (en) A kind of pilot system of distance increasing unit of electric automobile and test method
CN104477041A (en) Power following control method for range extender of pure electric vehicle
JP6744350B2 (en) vehicle
CN106100477A (en) Automobile current generator control method and device
CN103010204B (en) Hybrid vehicle and electric quantity balancing method, device
EP1209022A2 (en) Hybrid vehicle drive system and control method
JP7279421B2 (en) Battery charging method
CN104029606A (en) Control method of vehicle permanent magnet synchronous motor range extender
CN109263485A (en) A kind of control method and system of intelligent generator
CN106965684B (en) Control method and system applied to range extender
CN113734141A (en) Method and system for controlling idle speed power generation power of vehicle
CN109149738B (en) Energy management method and device and mobile charging vehicle
CN102468519A (en) Apparatus and method for extending battery life of plug-in hybrid vehicle
US8700248B2 (en) Charge and discharge control apparatus and method
JP4158615B2 (en) Vehicle power supply
CN211127216U (en) Energy device, charging vehicle, charging pile and extended-range electric vehicle
CN109066942B (en) Energy management method and device and mobile charging vehicle
CN111959293A (en) Motor torque limit value calculation method of double-motor planet row hybrid drive system
CN105270381A (en) Control method and device for hybrid electric vehicle
CN113635786B (en) Method for controlling power generation power of extended range electric vehicle

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
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20200810

Address after: Susong Road West and Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province

Applicant after: Weilai (Anhui) Holding Co.,Ltd.

Address before: 30 Floor of Yihe Building, No. 1 Kangle Plaza, Central, Hong Kong, China

Applicant before: NIO NEXTEV Ltd.

CB02 Change of applicant information
CB02 Change of applicant information

Address after: 230601 Susong Road West, Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province

Applicant after: Weilai Holdings Ltd.

Address before: 230601 Susong Road West, Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province

Applicant before: Weilai (Anhui) Holding Co.,Ltd.

GR01 Patent grant
GR01 Patent grant