WO2010076608A1 - Système et procédé de commande des cycles de charge et de décharge d'un ensemble batterie - Google Patents

Système et procédé de commande des cycles de charge et de décharge d'un ensemble batterie Download PDF

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Publication number
WO2010076608A1
WO2010076608A1 PCT/IB2008/055695 IB2008055695W WO2010076608A1 WO 2010076608 A1 WO2010076608 A1 WO 2010076608A1 IB 2008055695 W IB2008055695 W IB 2008055695W WO 2010076608 A1 WO2010076608 A1 WO 2010076608A1
Authority
WO
WIPO (PCT)
Prior art keywords
charge
battery
battery set
pulse
discharge
Prior art date
Application number
PCT/IB2008/055695
Other languages
English (en)
Inventor
Michael Millet
Richard Valayer
Original Assignee
Renault Trucks
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 Renault Trucks filed Critical Renault Trucks
Priority to PCT/IB2008/055695 priority Critical patent/WO2010076608A1/fr
Publication of WO2010076608A1 publication Critical patent/WO2010076608A1/fr

Links

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
    • H02J7/1423—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 with multiple batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/13—Maintaining the SoC within a determined range
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
    • 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
    • H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
    • 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
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • 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

Definitions

  • the invention relates to the management of charging and discharging cycles of battery sets and in a preferred but not limitative application, to the management of the charging and discharging of battery sets on electric or hybrid vehicles.
  • an object of the invention is a method for managing the charging and the discharging of a battery set comprising at least one battery being connected to an electrical system. According to the invention, the method comprises the steps of:
  • the invention allows a reduction of the non interrupted variation window of the state of charge between two pulses.
  • the invention allows a size reduction of the battery sets, whereas for a same size the invention allows a lifetime enhancement for an equivalent energy capacity.
  • electricity is provided by auxiliary means to the electrical system whereas during each discharging pulse, electricity is taken from the electrical system by auxiliary means.
  • Another object of the invention is a system for controlling the charge and discharge cycles of a battery set connected to an electrical system.
  • the control system comprises:
  • - shifting means interposed between the electrical system and the battery set and adapted to : - when the battery is in a charge sequence, interrupt the charge sequence with at least one discharge pulse;
  • the control system achieves a lifetime enhancement of the battery set to which it is associated.
  • the managing control system may be a stand alone device interconnected between an electrical system and a battery set.
  • the control system according to the invention can also be embedded either with the electrical system or the battery set.
  • the charge, respectively discharge, sequence is repeatedly interrupt with discharge, respectively charge, pulses. Therefore each charge, respectively discharge, sequence comprises charge, respectively discharge, periods alternating with discharge, respectively charge, pulses.
  • charge and discharge pulses may be designated as reversing pulses whereas the discharge and charge periods may designated as forward periods.
  • the wording pulse implies that the reversing pulses are much shorter than the forward periods.
  • Each reversing pulse may have for example duration inferior to two second preferably inferior or equal to one second.
  • the parameters of the reversing pulses are determined depending on the variation of the state of charge of the battery.
  • the speed of the variation of the state of charge can for example be estimated by monitoring the intensity of the current circulating in the battery set and the reversing pulses parameters may be adjusted according to the forward current value during the forward periods.
  • the duration of the reversing pulse may be a function of the forward current value such as a linear function.
  • each reversing pulse can for example be chosen so that during the reversing pulse the state of charge of the battery set varies in the range of 0,01 % and 1 % of the total state of charge.
  • duration of the forward periods i.e. the time interval between two consecutive reverse pulses, may be chosen according to the variation of the state of charge of the battery set.
  • the time interval between two consecutive reverse pulses may be chosen according to the current value.
  • the duration of each forward period between two reverse pulses can be chosen so that, during this continuous forward period, the state of charge of the battery set varies in the range of 1 % and 10 % of the total state of charge.
  • the shifting means of the control system comprise: - auxiliary discharge means for discharging the battery set during each discharging pulse;
  • the auxiliary discharge means may be formed by any appropriate electrical system or device.
  • the auxiliary discharge means may comprise a dedicated resistive device to which the battery set is connected during the discharging pulse.
  • the auxiliary discharge means may also comprise a circuit electrical to which electrical consumers are connected.
  • the auxiliary electrical energy providing means may also be of any appropriate kind and comprise for example: an electric generator or an electricity storage system.
  • the auxiliary discharging means comprises an electricity storage system, which will accumulate the energy from the battery set during the discharging pulse in order to reduce as much as possible the energy wasted during the discharging pulse.
  • the energy from the battery set during the discharging pulse will be therefore at least partly reusable.
  • the auxiliary electrical energy providing means are the same electricity storage system as the one forming the auxiliary discharge system.
  • the auxiliary discharge means and the auxiliary electrical energy providing means comprise capacitors and/or ultra capacitors.
  • the use of such device allows a high rate of energy recovering with a small sized and light system.
  • the same set of capacitor and or ultra capacitor is used as auxiliary discharge means and auxiliary electrical energy providing means.
  • the auxiliary discharge means are adapted to absorb the electricity provided by the electrical system during the discharge mean whereas the auxiliary electrical energy providing means are adapted to provide electricity to the electrical system during the charging pulse.
  • the control systems comprise a step-up converter for charging the capacitor and/or ultra-capacitor in order to reach the voltage high enough for charging the battery set during the charging pulses.
  • control system further comprises filtering means on the electrical system side and on the battery set side. These electrical filtering means are adapted to filter at least the electrical disturbances generated by the switching means.
  • the filtering means may comprise any appropriate electrical components or electrical system either active or passive.
  • the filtering means comprise passive components such as capacitors and inductive coils.
  • Another object of the invention is a vehicle comprising an electric drive system including an electric driving motor connected to a driving battery set by a driving circuit further comprising a control system according to the invention
  • Such electric vehicle can be either a full electric vehicle or a hybrid vehicle comprising an internal combustion engine and/or a fuel electric cell.
  • the figure 1 is a schematic view of a hybrid vehicle implementing a control system for controlling the charge and discharge cycles of the driving battery set according to the invention.
  • FIG. 2 illustrates the state of charge evolution of the driving battery set over the time with the implementation of the control method according to the invention.
  • the hybrid vehicle 1 comprises a drive system which includes an internal combustion engine unit 2 powering a mechanical dhveline 3.
  • the internal combustion engine unit 2 is associated with an engine electronic control unit 4 providing at least a state of the engine unit 2 to a vehicle control unit VCU.
  • the drive system comprises also an electric drive motor system 5 which is as well operatively connected to the driveline 3.
  • the electric drive motor system 5 is associated with a motor electronic control unit 6 connected to the vehicle control unit VCU.
  • the mechanical driveline or the drive system can be of different types such as of a parallel or series type or implement a planetary gear system.
  • the electric drive motor system 5 may comprise a single electric motor or a plurality of electric motors combined with a single electric generator or a plurality of electric generators in order to recover energy during slowing down phases of the hybrid vehicle.
  • the electric motor and the electric generator may be mutually separate, they also can be combined as a single motor/generator which selectively functions as an electric motor or an electric generator.
  • the hybrid vehicle 1 comprises a driving circuit 7 which provides electricity at least to the electric drive motor system 5 and which comprises a driving battery set 8 comprising at least one driving battery not shown.
  • the driving battery set 8 may of course comprise a plurality of driving batteries either connected in series or in parallel depending on capacity or the nominal voltage of the driving battery set.
  • the driving battery set 8 is preferably of a medium or a high nominal voltage, for example being in the range of 120 V to 1000 V. Furthermore, each driving battery is preferably a battery with a low internal resistance optimized for efficient low duration high current output, for example a lithium-ion battery.
  • the hybrid vehicle 1 comprises also a service circuit 10 which provides electricity at least to the engine unit 2 but also to other electrical consumers 12 schematically depicted as a light bulb and a ventilator on the figure.
  • the service circuit 10 comprises a service battery set 13 which comprises at least one service battery not individually shown on the figures.
  • the service battery set 13 is of a low nominal voltage, for example being in the range of 12 V to 72 V.
  • Each service battery is preferably a battery optimized for deep cyclic uses and for total energy capacity but can also be of a dual type being a compromise between an energy battery and a power battery.
  • the service circuit 10 further comprises an electric generator operatively connected to the engine unit 2 and therefore driven by internal combustion engine unit 2.
  • the service circuit 10 is also connected to the driving circuit 7 through a driving converter 15, the driving converter 15 mainly works as a step-down converter lowering the voltage of the driving circuit 10 in order to provide electricity to the service circuit 7 and more particularly in order to charge the service battery set 8.
  • the driving converter 15 can also be of a step-up/step-down type in order to reciprocally derive power from the service circuit 10 for providing electricity to the driving circuit 7.
  • the system S is interposed between the driving battery set 8 and the rest of the driving circuit 7, which may be designated as a whole as the electrical system ES.
  • the system S therefore controls the charge and discharge cycles of the driving battery set 8.
  • the control system S comprises a super-capacitor set 16 connected to a main internal circuit 17 by two internal branches 18, 19.
  • the main internal circuit 17 is also connected on the one hand to the driving circuit 7 and on the other hand to the driving battery set 8.
  • the main internal circuit 17 comprises also electronically control switching means 22 situated between the connecting points of the internal branches 18, 19.
  • Each of two internal branches 18, 19 comprises also electronically controlled switching means, respectively 23, 24, interposed between the super-capacitor set 16 and the main internal circuit 17.
  • the electronically controlled switching means 22, 23 and 24 may be formed in any appropriate manner.
  • each electronically controlled switching means may comprise an assembly of transistors or thyhstors.
  • the switching means 22, 23, 24 are controlled by an electronic controlled unit ECU.
  • the assembly of the switching means 22, 23 and 24, and the ECU forms what may be called the shifting means of the system S as the ECU is adapted to induced pulses during which the chemical process within the battery set is reversed with respect to the chemical process occurring during the period preceding the pulse according to the working state of the electrical system ES during this preceding period.
  • the driving battery set 8 is providing electricity to driving motor 5.
  • Information concerning this traction sequence may be provided to the ECU by VCU or deducted by ECU from the voltage of the driving circuit 7.
  • This traction sequence corresponds to a discharge sequence DS of the driving battery set 8.
  • the ECU will control the switching means 22 to 24, in order to induce at least one and according to the shown example two reversing pulses, here charging pulses CP by deriving energy from the super-cap set 16.
  • the chemical reactions within the driving battery set 8 will be reversed by comparison to the chemical reaction taking place just before the charging pulse i.e. during what might be called a forward period.
  • the ECU pilots the opening of the switching means 22 and the closing of the switching means 23 and 24.
  • the super-capacitor set 16 will be thus connected both to the driving circuit 7 and to the battery set 8 and will induce a charging pulse CP in the battery set, whereas it provides energy to the driving motor so that the driving system will not be affected by the charging pulse CP.
  • ECU pilots the closing of switching means 22 and the opening of the switching means 23, 24 so that the battery set 8 resumes the discharging sequence.
  • the energy of the super-capacitor set 16 used during the charging pulses CP might have been stored during a previous braking phase of the vehicle.
  • the super-capacitor set 16 may also have been charge during the discharge period preceding the charging pulse.
  • the control system S preferably comprises a step-up converter 28 controlled by the electronic control unit ECU.
  • the step-up converter 28 will charge the super-capacitor set 16 with energy derived from a driving battery set 8 during the discharge sequence.
  • the step-up converter 28 pre- charges the super-capacitor set 16 for the next charging pulse CP during each discharge period.
  • the ECU repeats the charging pulses CP during the discharging sequence DS at various moments of this charging sequence DS, preferably on a regular basis.
  • Each charging pulse has for example a duration shorter than two seconds, such as a few milliseconds or a few tens of milliseconds.
  • the electric drive system When the vehicle is in a slowing or braking sequence, the electric drive system is designed to recover electrical energy from the braking or slowing, in order to charge the driving battery set 8. Therefore such a braking or slowing sequence can be considered when viewed from the battery set has a charging sequence CS.
  • the ECU of the control system S will interrupt this charging sequence CS with at least one and preferably several reversing pulses, here discharging pulses DP.
  • the ECU will open the switch 22 and close the switches 23 and 24, the electricity provided by the driving circuit 7 will be used for charging the super-capacitor set 16 and the driving battery 8 will also charge the super-capacitor set 16 so that energy losses are very low during the discharging pulse DP.
  • the implementation of these charging pulse during the discharging sequence DS and discharging pulse DP during the charging sequence CS will allow dividing the cycling percentage by the number of interruptions leading to less impact on the driving battery set 8 aging due to cycling. It should be noted that electricity accumulated in the super-capacitor 16 during the discharging pulses can be recovered using the step up converter 28 in order to be provided to the circuit for charging the driving battery set 8.
  • control system may also be provided with filters 30, 31 , one on the driving circuit side and the other on the driving battery set side.
  • filters 30, 31 are preferably of a passive type comprising capacitors and inductive coils. These filters will dampen the effects of the switching and guarantee a smooth running of the driving system and during driving sequences corresponding to discharge sequences as viewed from the driving battery set side.
  • the parameters for the reversing pulses and the forward periods are preset fixed parameters of the ECU but according to the invention these parameters can be dynamically determined by the ECU according to the working conditions of the battery set 8. For example, the ECU can monitor the forward current value circulating through the battery set 8 during the forward period and adjust the duration and/or intensity of the reserving pulses and the forward periods i.e. the reversing pulses' repetitiveness according to the forward current value.
  • each reversing pulse CP, DP can be chosen so that the variation dSoC of the state of charge during said reversing pulse in the range of 0,01 % and 1 % of the total state of charge.
  • each forward period FP can be chosen so that the variation ⁇ SoC of the state of charge during said forward period FP in the range of 1 % and 10% of the total state of charge.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention porte sur un système de commande des cycles de charge et de décharge d'un ensemble batterie connecté à un système électrique, comprenant : un moyen (ECU) pour évaluer la séquence effective de la batterie, charge ou décharge, selon le comportement du système électrique ; et un moyen de changement intercalé entre le système électrique et l'ensemble batterie et conçu pour : lorsque la batterie est dans une séquence de charge (CS), interrompre la séquence de charge par au moins une impulsion de décharge (DP) ; lorsque la batterie est dans une séquence de décharge (DS), interrompre la séquence de décharge par au moins une impulsion de charge (CP).
PCT/IB2008/055695 2008-12-29 2008-12-29 Système et procédé de commande des cycles de charge et de décharge d'un ensemble batterie WO2010076608A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2008/055695 WO2010076608A1 (fr) 2008-12-29 2008-12-29 Système et procédé de commande des cycles de charge et de décharge d'un ensemble batterie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2008/055695 WO2010076608A1 (fr) 2008-12-29 2008-12-29 Système et procédé de commande des cycles de charge et de décharge d'un ensemble batterie

Publications (1)

Publication Number Publication Date
WO2010076608A1 true WO2010076608A1 (fr) 2010-07-08

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PCT/IB2008/055695 WO2010076608A1 (fr) 2008-12-29 2008-12-29 Système et procédé de commande des cycles de charge et de décharge d'un ensemble batterie

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130229153A1 (en) * 2010-09-21 2013-09-05 Proterra Inc Systems and methods for equivalent rapid charging with different energy storage configurations
WO2016150770A1 (fr) * 2015-03-23 2016-09-29 Siemens Aktiengesellschaft Procédé et dispositif pour charger ou décharger un accumulateur d'énergie
GB2540839A (en) * 2015-04-24 2017-02-01 Manodya Ltd A power supply system
US10110023B2 (en) 2015-04-24 2018-10-23 Manodya Limited Power supply system
US10594150B2 (en) 2015-04-24 2020-03-17 Manodya Limited Pulse discharge system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829225A (en) * 1985-10-23 1989-05-09 Electronic Power Devices, Corp. Rapid battery charger, discharger and conditioner
US5654622A (en) * 1995-02-16 1997-08-05 Sanyo Electric Co., Ltd. Secondary battery charging method and apparatus which controls protecting voltage level of battery protecting circuit
WO1998021804A1 (fr) * 1996-11-08 1998-05-22 Lajos Koltai Procede et circuit electrique pour accroitre la duree de vie de batteries d'accumulateurs
US20060175904A1 (en) * 2005-02-04 2006-08-10 Liebert Corporation Ups having a dual-use boost converter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829225A (en) * 1985-10-23 1989-05-09 Electronic Power Devices, Corp. Rapid battery charger, discharger and conditioner
US5654622A (en) * 1995-02-16 1997-08-05 Sanyo Electric Co., Ltd. Secondary battery charging method and apparatus which controls protecting voltage level of battery protecting circuit
WO1998021804A1 (fr) * 1996-11-08 1998-05-22 Lajos Koltai Procede et circuit electrique pour accroitre la duree de vie de batteries d'accumulateurs
US20060175904A1 (en) * 2005-02-04 2006-08-10 Liebert Corporation Ups having a dual-use boost converter

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130229153A1 (en) * 2010-09-21 2013-09-05 Proterra Inc Systems and methods for equivalent rapid charging with different energy storage configurations
US9496735B2 (en) * 2010-09-21 2016-11-15 Proterra Inc. Methods for electric bus charging to increase battery life
WO2016150770A1 (fr) * 2015-03-23 2016-09-29 Siemens Aktiengesellschaft Procédé et dispositif pour charger ou décharger un accumulateur d'énergie
CN107408831A (zh) * 2015-03-23 2017-11-28 西门子公司 用于对储能器进行充电或放电的方法和装置
US20180076645A1 (en) * 2015-03-23 2018-03-15 Siemens Aktiengesellschaft Method and apparatus for charging or discharging an energy store
US10931131B2 (en) 2015-03-23 2021-02-23 Siemens Aktiengesellschaft Method and apparatus for charging or discharging an energy store
CN107408831B (zh) * 2015-03-23 2021-06-01 西门子公司 用于对储能器进行充电或放电的方法和装置
GB2540839A (en) * 2015-04-24 2017-02-01 Manodya Ltd A power supply system
GB2540839B (en) * 2015-04-24 2018-08-29 Manodya Ltd A power supply system
US10110023B2 (en) 2015-04-24 2018-10-23 Manodya Limited Power supply system
US10594150B2 (en) 2015-04-24 2020-03-17 Manodya Limited Pulse discharge system

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