WO2015098259A1 - Dispositif de commande de charge et procédé de commande de charge - Google Patents

Dispositif de commande de charge et procédé de commande de charge Download PDF

Info

Publication number
WO2015098259A1
WO2015098259A1 PCT/JP2014/078075 JP2014078075W WO2015098259A1 WO 2015098259 A1 WO2015098259 A1 WO 2015098259A1 JP 2014078075 W JP2014078075 W JP 2014078075W WO 2015098259 A1 WO2015098259 A1 WO 2015098259A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
charging rate
power
converter
load
Prior art date
Application number
PCT/JP2014/078075
Other languages
English (en)
Japanese (ja)
Inventor
征志 城殿
慎司 広瀬
Original Assignee
株式会社豊田自動織機
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 株式会社豊田自動織機 filed Critical 株式会社豊田自動織機
Publication of WO2015098259A1 publication Critical patent/WO2015098259A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K25/00—Auxiliary drives
    • B60K25/02—Auxiliary drives directly from an engine shaft
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K25/00—Auxiliary drives
    • B60K25/02—Auxiliary drives directly from an engine shaft
    • B60K2025/022—Auxiliary drives directly from an engine shaft by a mechanical transmission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
    • F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric

Definitions

  • the present invention relates to a charge control device and a charge control method for controlling charging of a battery.
  • Charging the lithium-ion battery that supplies power to the electric supercharger used to assist the supercharger that supercharges the intake air of the internal combustion engine is applied to auxiliary equipment loads such as auxiliary equipment and systems installed in the vehicle. It is carried out from a lead battery that supplies power via a power converter such as a DC / DC converter.
  • a power converter such as a DC / DC converter.
  • the DC / DC converter when the DC / DC converter is activated, for example, the current from the lead battery to the input side circuit of the DC / DC converter due to the influence of the input side circuit having a capacitor or the like provided on the input side of the DC / DC converter. May flow and the voltage of the lead battery may decrease.
  • the present invention distributes the load on the battery that supplies power to the auxiliary system load by changing the timing at which the power converter can be activated, thereby suppressing deterioration of the battery and avoiding system down
  • An object is to provide a device and a charge control method.
  • the charge control apparatus which is one of the embodiments includes a first battery, a second battery, a first power converter, a second power converter, and a control unit.
  • the first battery supplies power to the first load of the auxiliary system.
  • the second battery supplies power to the second load.
  • the first power converter is used when charging from the first battery to the second battery.
  • the second power converter is used when supplying power to the second load.
  • the controller does not activate the first power converter when it is determined that the charging rate of the second battery is greater than a predetermined charging rate threshold, and the charging rate is determined to be equal to or lower than the charging rate threshold
  • the start determination control is performed to make the first power converter startable.
  • the present embodiment by changing the timing at which the power converter can be activated, the load on the battery that supplies power to the auxiliary system load is distributed, the deterioration of the battery is suppressed, and the system is down. It can be avoided.
  • FIG. 1 is a diagram showing an embodiment of an apparatus mounted on a vehicle having an electric supercharger.
  • FIG. 2 is a diagram for explaining the activation determination control.
  • FIG. 3 is a flowchart showing an embodiment of the operation of the control unit.
  • FIG. 1 is a diagram showing an embodiment of an apparatus mounted on a vehicle having an electric supercharger. 1 includes an internal combustion engine 2, a supercharger 3, an electric supercharger 4, a battery pack 5, a power supply unit 6, a control unit 7, and the like.
  • the internal combustion engine 2 includes an output shaft 8, and in this example, drive wheels 9 are connected to the output shaft 8.
  • the supercharger 3 is a device that forcibly sends air to the internal combustion engine 2, and makes the output of the internal combustion engine 2 larger.
  • the pipe 10 (shaded dot pattern portion) is a pipe used for supercharging.
  • the electric supercharger 4 has a compressor 11 and an electric motor 12 (second load), and is a device for forcibly sending air to the internal combustion engine 2 and assists the supercharger 3. Electric power to the electric motor 12 that drives the compressor 11 is supplied from an inverter 13 (second power converter).
  • the inverter 13 supplies power to the electric motor 12 based on an instruction from the control unit 7.
  • the battery pack 5 includes a second battery 14, a temperature detection unit 15, a current detection unit 16, a charge state calculation unit 17, and a storage unit 18, and supplies power to the electric supercharger 4.
  • the second battery 14 is an assembled battery having one or more secondary batteries, and is charged by the power supplied from the power supply unit 6.
  • the secondary battery used in the second battery 14 is preferably a secondary battery that can be charged and discharged in a short time, such as a lithium ion battery.
  • the secondary battery is not limited to a lithium ion battery, and a storage element such as a nickel-hydrogen rechargeable battery (Ni-MH), a lead battery, or a capacitor may be used.
  • the temperature detection unit 15 is a sensor or element that detects the temperature of the second battery 14 or the ambient temperature of the battery pack 5, and may be measured using, for example, a thermistor.
  • the current detection unit 16 is a sensor or element that detects the current flowing through the second battery 14, and may be measured using a shunt resistor or a current transformer.
  • the battery pack 5 includes the second battery 14, the temperature detection unit 15, the current detection unit 16, the charge state calculation unit 17, and the storage unit 18. ) Is not necessary.
  • the charge state calculation unit 17 may be, for example, a circuit using a CPU (Central Processing Unit), a multi-core CPU, a programmable device (FPGA (Field Programmable Gate Array) or PLD (Programmable Logic Device)), and the storage unit 18.
  • the CPU, multi-core CPU, or programmable device reads and executes a program that calculates a value representing a charging state such as a charging rate described later stored in the CPU.
  • the charging state calculation unit 17 uses the voltage of the second battery 14, the temperature detected by the temperature detection unit 15, the current detected by the current detection unit 16, etc.
  • the value (State of Charge (SOC)) indicating the ratio [%] of the current charge capacity [Ah] to the full charge capacity [Ah] of the battery 14 is obtained.
  • the voltage [V] of the second battery 14 and the charging rate of the second battery 14 are read from the storage unit 18 and the voltage of the second battery 14 is referred to by referring to the information.
  • the charging rate of the second battery 14 corresponding to [V] is acquired. Further, by calculating (current amount [Ah] obtained by integrating the current detected by the current detection unit 16 over time) / (full charge capacity [Ah] of the second battery 14) ⁇ 100 [%], The charging rate of the second battery 14 is obtained.
  • the full capacity of the second battery 14 may be the actual capacity or the nominal value of the product.
  • the storage unit 18 is a memory such as Read Only Memory (ROM) or Random Access Memory (RAM), and may store data such as parameter values and variable values, or may be used as a work area at the time of execution. Note that a storage unit provided in the charging state calculation unit 17 may be used instead of the storage unit 18. The storage unit 18 may be provided outside the battery pack 5.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the power supply unit 6 includes an alternator 19 (generator), a first battery 20, and a DC / DC converter 21 (first power converter).
  • An alternator 19 (generator) is connected to the output shaft 8 and generates electric power using rotational energy (power) of the output shaft 8, and the generated electric power is charged in the first battery 20 which is a secondary battery. . Further, the power generated by the alternator 19 includes power generated as brake regeneration. The electric power generated by the alternator 19 may be supplied to the second battery 14 of the battery pack 5 via the DC / DC converter 21.
  • the first battery 20 is a secondary battery for supplying electric power to an auxiliary machine or system (auxiliary machine / system 22: first load shown in FIG. 2) mounted on the vehicle, such as a lead battery. .
  • the first battery 20 is not limited to a lead battery.
  • the DC / DC converter 21 converts the voltage output from the first battery 20 into a voltage that can be charged in the second battery 14 of the battery pack 5, and charges the second battery 14 from the first battery 20. Let In this example, the DC / DC converter 21 has been described. However, any power converter that can charge the first battery 20 to the second battery 14 may be used.
  • the control unit 7 is a circuit using, for example, a CPU, a multi-core CPU, and a programmable device (FPGA, PLD, etc.), and reads and executes a program for controlling each unit stored in the storage unit of the control unit 7.
  • FPGA programmable device
  • the storage unit is a memory such as a ROM or a RAM, and may store data such as parameter values and variable values, or may be used as a work area during execution. Note that the storage unit may be provided separately from the control unit 7.
  • the control unit 7 controls the DC / DC converter 21 based on the voltage of the first battery 20, the charging rate of the second battery 14 obtained by the charge state calculation unit 17, and the battery pack from the first battery 20. 5 is supplied with electric power. Further, when receiving an instruction for driving the electric supercharger 4 from the outside, based on the charging rate of the second battery 14 acquired from the charging state calculation unit 17, information stored in the storage unit 18, and the like, The output of the inverter 13 is controlled.
  • FIG. 2 is a diagram for explaining the activation determination control.
  • auxiliary machine or system auxiliary machine / system 22 mounted on the vehicle
  • the first battery 20 and the second battery 14 are sufficiently charged, the voltage of the first battery 20 is lower than the overdischarge voltage even if the control unit 7 activates or enables the DC / DC converter 21. Therefore, there is no problem that the first battery 20 is deteriorated or the auxiliary machine or the system cannot be controlled due to the voltage drop of the first battery 20 (system down). Therefore, the DC / DC converter 21 is activated, and the inverter 13 using the power output from the first battery 20 via the DC / DC converter 21 and the power output from the second battery 14.
  • the electric motor 12 can be driven via
  • the first battery 20 is sufficiently charged when, for example, the voltage of the first battery 20 supplies power to the auxiliary machine or system at the same timing as when the DC / DC converter 21 is activated. This is also the case where the voltage does not go down (voltage threshold) or higher.
  • the charge rate of the second battery 14 corresponds to the power required to drive the motor 12 via the inverter 13 (charge rate). This is the case where the threshold value is larger.
  • the charging rate threshold value and the voltage threshold value are stored in the storage unit, for example.
  • startable indicates that the DC / DC converter 21 that has received the startable signal output from the control unit 7 is in a ready state. For example, when a startable signal is received when there is a smoothing capacitor for preventing an inrush current on the input side of the DC / DC converter 21, the capacitor is precharged. When the start signal is received, the DC / DC converter 21 is always turned on. It can be driven. The activation is, for example, causing the DC / DC converter 21 to start a switching operation or the like by driving the DC / DC converter 21 that has received the activation signal output from the control unit 7.
  • the control unit 7 activates the DC / DC converter 21 to The second battery 14 can be charged from the battery 20 via the DC / DC converter 21.
  • the timing at which the DC / DC converter 21 can be activated can be shifted. That is, by shifting the timing at which power is supplied from the first battery 20 to the DC / DC converter 21 (or the current 23 flows) and the timing at which power is supplied to the auxiliary machine or system (or the current 24 flows), The load on the first battery 20 can be distributed.
  • the voltage of the first battery 20 is determined when starting power supply to the auxiliary machine or system.
  • the control unit 7 drives the auxiliary machine or system at the timing for starting the DC / DC converter 21.
  • the DC / DC converter 21 is activated after reaching a sufficient voltage. Therefore, even if the voltage of the first battery 20 decreases, deterioration due to falling below the overdischarge voltage can be suppressed, and the voltage has reached a sufficient voltage to drive the auxiliary machine and system, so that system down is avoided. Can do.
  • the control unit 7 may control each unit of the power supply unit 6 so as to gradually charge the second battery 14. For example, based on the voltage of the first battery 20 and the charging rate of the second battery 14, the voltage of the first battery 20 is preferably equal to or higher than the voltage threshold and the charging rate of the second battery 14 is more than the charging rate threshold.
  • Charging may be performed by determining a charging current and a charging time so as to increase.
  • the charging current may be a constant current.
  • FIG. 3 is a flowchart showing an embodiment of the operation of the control unit.
  • step S1 when the power supply from the first battery 20 to the load such as the auxiliary machine / system 22 is started, the control unit 7 determines that the charging rate of the second battery 14 is equal to or less than a predetermined charging rate threshold value. If NO is determined and it is determined that the charging rate is equal to or lower than the charging rate threshold (Yes), the process proceeds to step S3. That is, since it is necessary to avoid that the second battery 14 cannot drive the electric motor 12 and the inverter 13 due to insufficient charging of the second battery 14, when the charging of the second battery 14 is insufficient Then, the control unit 7 proceeds to step S3 so that the DC / DC converter 21 can be activated. Moreover, when it determines with a charging rate being larger than a charging rate threshold value in step S1, it transfers to step S2.
  • the second battery 14 is started when power supply to the auxiliary machine or system is started. Since it is not necessary to charge the battery, the timing at which the DC / DC converter 21 can be activated can be shifted. That is, by shifting the timing at which power is supplied from the first battery 20 to the DC / DC converter 21 (or the current 23 flows) and the timing at which power is supplied to the auxiliary machine or system (or the current 24 flows), The load on the first battery 20 can be distributed.
  • step S2 the control unit 7 determines whether or not the voltage of the first battery 20 is equal to or higher than a predetermined voltage threshold value. If the voltage of the first battery 20 is determined to be equal to or higher than the voltage threshold value (Yes) ), The process proceeds to step S3. If it is determined that the voltage of the first battery 20 is lower than the voltage threshold (No), the process proceeds to step S1.
  • the voltage of the first battery 20 is activated by the DC / DC converter 21 when power supply to the auxiliary machine or system is started.
  • the control unit 7 determines the timing for starting the DC / DC converter 21 at the time of starting the DC / DC converter 21. After determining that the voltage is sufficient to drive the system, the DC / DC converter 21 is activated. Therefore, even if the voltage of the first battery 20 decreases, deterioration due to falling below the overdischarge voltage can be suppressed, and the voltage has reached a sufficient voltage to drive the auxiliary machine and system, so that system down is avoided. Can do.
  • step S3 the control unit 7 makes the DC / DC converter 21 startable.
  • step S2 when the DC / DC converter 21 is activated when the voltage of the first battery 20 is equal to or higher than the voltage threshold and the charging rate of the second battery 14 is larger than the charging rate threshold, the first The control unit 7 may control each unit of the power supply unit 6 so as to gradually charge the second battery 14 from the battery 20. For example, based on the voltage of the first battery 20 and the charging rate of the second battery 14, the voltage of the first battery 20 is preferably equal to or higher than the voltage threshold and the charging rate of the second battery 14 is more than the charging rate threshold.
  • Charging may be performed by determining a charging current and a charging time so as to increase.
  • the charging current may be a constant current.
  • the present embodiment by changing the timing at which the first power converter such as the DC / DC converter 21 can be activated, the load on the battery that supplies power to the auxiliary load is distributed, Deterioration of the battery can be suppressed and system down can be avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supercharger (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de commande de charge comportant : une première batterie (20) qui fournit de la puissance à une première charge d'un système de machine auxiliaire ; une deuxième batterie (14) qui fournit de la puissance à une deuxième charge ; un premier convertisseur de puissance (21) qui est utilisé quand la deuxième batterie (14) est chargée à partir de la première batterie (20) ; un deuxième convertisseur de puissance (13) qui est utilisé quand la puissance est fournie à la deuxième charge ; et une unité de commande (7) qui effectue une commande de détermination de démarrage avec laquelle le premier convertisseur de puissance (21) n'est pas démarré quand le taux de charge de la deuxième batterie (14) est déterminé comme étant supérieur à une valeur de seuil prédéterminée de taux de charge, et le premier convertisseur de puissance (21) est mis dans un état permettant d'être démarré quand le taux de charge est déterminé comme étant égal ou inférieur à la valeur de seuil de taux de charge.
PCT/JP2014/078075 2013-12-25 2014-10-22 Dispositif de commande de charge et procédé de commande de charge WO2015098259A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013266281A JP2015120463A (ja) 2013-12-25 2013-12-25 充電制御装置および充電制御方法
JP2013-266281 2013-12-25

Publications (1)

Publication Number Publication Date
WO2015098259A1 true WO2015098259A1 (fr) 2015-07-02

Family

ID=53478137

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/078075 WO2015098259A1 (fr) 2013-12-25 2014-10-22 Dispositif de commande de charge et procédé de commande de charge

Country Status (2)

Country Link
JP (1) JP2015120463A (fr)
WO (1) WO2015098259A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017115774A (ja) * 2015-12-25 2017-06-29 三菱自動車工業株式会社 電動式過給機付きエンジンの電源システム

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007189760A (ja) * 2006-01-11 2007-07-26 Fujitsu Ten Ltd 車両の電源制御装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007189760A (ja) * 2006-01-11 2007-07-26 Fujitsu Ten Ltd 車両の電源制御装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017115774A (ja) * 2015-12-25 2017-06-29 三菱自動車工業株式会社 電動式過給機付きエンジンの電源システム

Also Published As

Publication number Publication date
JP2015120463A (ja) 2015-07-02

Similar Documents

Publication Publication Date Title
JP6465907B2 (ja) 車両用電源システム
JP4327143B2 (ja) 二次電池用の制御装置及び二次電池の出力制御方法及び二次電池の出力制御実行プログラム
JP7294493B2 (ja) 蓄電素子の監視装置、蓄電装置および蓄電素子の監視方法
US20140176085A1 (en) Battery controller of vehicle
US9731619B2 (en) Vehicle and control method for vehicle
JP2006304393A (ja) 電源装置およびその制御方法並びに車両
JP2012228051A (ja) 車両用電源システム
WO2016021136A1 (fr) Système de stockage d'électricité embarqué dans un véhicule
JP2002325373A (ja) バッテリ容量制御装置
JP2019205316A (ja) バッテリ放電制御装置
US10498154B2 (en) Electric power system
JP6186248B2 (ja) インバータの異常判定装置
JP2004166350A (ja) 電池制御装置
JP7373113B2 (ja) 車両用電源制御装置
JP5450238B2 (ja) 電動車両
WO2015098259A1 (fr) Dispositif de commande de charge et procédé de commande de charge
JP2017192272A (ja) 電源制御装置
JP2014011826A (ja) 車両のバッテリ充電状態制御装置
JP2000217206A (ja) 電気自動車の充電制御装置
JP2006180665A (ja) ハイブリッド車両の充電装置
JP7114026B2 (ja) 車両の電源制御装置
CN108988715B (zh) 发电控制装置
JP2015156337A (ja) 充電制御装置および充電制御方法
JP5954188B2 (ja) 二次電池管理装置
JP2022034587A (ja) 車両用制御装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14875572

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14875572

Country of ref document: EP

Kind code of ref document: A1