WO2011018335A2 - Ladegerät für einen energiespeicher und verfahren zum betreiben eines solchen ladegeräts - Google Patents
Ladegerät für einen energiespeicher und verfahren zum betreiben eines solchen ladegeräts Download PDFInfo
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- WO2011018335A2 WO2011018335A2 PCT/EP2010/060939 EP2010060939W WO2011018335A2 WO 2011018335 A2 WO2011018335 A2 WO 2011018335A2 EP 2010060939 W EP2010060939 W EP 2010060939W WO 2011018335 A2 WO2011018335 A2 WO 2011018335A2
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- WIPO (PCT)
- Prior art keywords
- charger
- energy
- charging
- energy storage
- state
- Prior art date
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Classifications
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- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- 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]
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- 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
- H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
-
- 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
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/40—Problem solutions or means not otherwise provided for related to technical updates when adding new parts or software
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- 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
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- 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
- 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
- Y02T90/14—Plug-in electric vehicles
Definitions
- the invention relates to a charger for an electrochemical and / or electrostatic energy store, a method for operating such a charger and an electric vehicle with such a charger with the features of the preambles of the independent claims.
- Modern electric vehicles such as exclusively powered by electric energy vehicles, but also hybrid vehicles, which have combinations with internal combustion engines or fuel cells are equipped with one or more electrochemical and optionally additional electrostatic energy storage.
- electric vehicle both electric vehicles and hybrid vehicles.
- Electrochemical energy stores may e.g. Lead-acid batteries, nickel-metal hydride batteries, nickel-zinc batteries, lithium-ion batteries or even combinations of these batteries. It is also possible to use combinations with double-layer capacitors.
- a charger To charge such energy storage with energy charging a charger is necessary.
- a charger may be a stationary charger or a charger integrated in the electric vehicle, a so-called on-board charger.
- Each energy storage device is subject to an aging process, depending on its mechanical and chemical structure.
- the speed This aging process may depend on various factors, in particular a state of charge, a temperature, charging and discharging currents, as well as charging and discharging during operation of the energy store.
- the strength of the influence of these factors on the aging process of an energy store depends on an operating state of the energy store.
- the operating state of driving (cyclic aging) and of parking (calendar aging) are to be considered separately.
- a power supply network is here and hereinafter generally referred to a power system through which provide electricity suppliers electrical energy.
- this can be a home network, but in particular also a special high-performance network which is suitable for particularly high power consumptions, such as may occur during charging of an energy store in an electric vehicle.
- the charger is therefore intended to reduce the operating costs in the use of energy storage and thereby allow the highest possible ease of use, with the longest possible life of the battery.
- an extended life of the energy storage also takes into account environmental protection requirements.
- the charger should be able to help facilitate the use of renewable energy, which already from various electricity providers are fed into the electricity grids.
- Modern chargers often include programmable arithmetic units that can be used to program, for example, charge on or off intervals, such as to facilitate the use of low-cost night-time power.
- the programming is usually done manually or via a PC, which is often very cumbersome or even impossible if no PC is available. The same applies to programmable devices connected to the energy store.
- the present invention is therefore based on the object to propose a charger, which solves the problems mentioned or at least reduced.
- the state of charge of an energy store should be controllable in a way that is as user-friendly as possible, so that the aging process of the energy store is slowed down as much as possible.
- the greatest possible temporal flexibility with regard to the retrievable power or amount of energy should advantageously be realized, whereby as far as possible factors should be considered.
- the operability of the charger should be simplified in terms of the most cost-effective and environmentally friendly energy consumption.
- the charger should also be easy to operate in terms of its programming, especially with regard to updating the firmware of the charger.
- a particularly long life of the energy storage can be achieved by a charger for an energy storage, for example, for an electrochemical and / or electrostatic energy storage, in particular for a lithium-ion battery in an electric vehicle, wherein the charger includes a circuit for adjusting the charger in a full charge mode or a parking charge mode, wherein the charger is configured in full charge mode to make a full charge of the energy storage and in the park charge mode to produce a park state of the energy storage, the parking state corresponds to a reduced state of charge of the E nergie notess.
- the circuit may comprise electrotechnical and / or programmable components.
- the reduced state of charge of the circuit may comprise electrotechnical and / or programmable components.
- Energy storage is defined as a state of charge of the energy storage, in which in the energy storage a reduced amount of energy is stored.
- the reduced amount of energy is less than a maximum amount stored in the energy store. chaeable amount of energy.
- the full charge of the energy storage is defined as a state of charge, in which the maximum amount of energy stored in the energy storage is stored.
- the parking state which corresponds to the reduced state of charge, is chosen so that the life of the energy storage is as long as possible, but at the same time a minimum amount of stored energy is not exceeded, for example, in the case of an electric vehicle to guarantee a minimum range.
- the reduced amount of energy in the reduced state of charge for example, about 60% of the maximum storable amount of energy of the energy storage (in its full state of charge) amount. If a momentary state of charge of the energy store is measured above the reduced state of charge (parking state) as measured by the amount of energy currently stored, then the parking state of the energy store can be adjusted by the corresponding energy removal from the energy store by the charger connected to the parking charge mode.
- a further development of the invention provides that the full charging mode is activated by default and the charger has a parking key for activating the parking charging mode.
- Such a charger is thus characterized by a particularly simple operability.
- an on-board charger In the case of an on-board
- the charger is set up in the park charge mode for forwarding an energy stored in the energy store to the energy consumer and / or the charger comprises a module for feeding back the energy removed from the energy store a power supply network.
- This module is advantageously a component approved for the power supply network of power suppliers, which as a rule is designed as an inverter module and is set up to convert a voltage absorbed by the energy store into an AC voltage synchronized with an AC voltage of the power supply network. In this way, the charger is in the park loading mode for a particularly efficient utilization of energy removed from the energy storage and is therefore particularly environmentally friendly and cost-effective.
- a development of the charger provides that the charger has an interface for receiving and evaluating a sent to the charger activation signal for establishing the full state of charge or the ParkladeCloudes the energy storage, in particular via an Internet connection, via an SMS or via radio.
- a charger has the ability to adjust the state of charge after a remote-controlled activation of the charger. For example, a battery in an electric vehicle, which is in a park state with a reduced amount of stored energy, can be timely set to send a text message to the charger in a full charge state with a maximum amount of stored energy, in order to start the journey on a maximum range of the vehicle.
- the charger includes a computing unit for calculating a start time of the charging process and the Zielladeschreibs, ie the energy stored in this Zielladeschreib in the energy storage, based on a current charging state of the energy storage, an available charging power of a power grid, the target time and a planned energy consumption, the charger further having an input interface for entering the target time and the planned energy consumption.
- the input interface can be located directly on the charger and configured as a signal receiver or input keyboard. In the case of an on-board charger of an electric vehicle, however, this input keyboard can also advantageously be arranged in the driver's cab.
- Such a programmable charger has the advantage that the state of charge can be optimized particularly user-friendly and flexible.
- the destination time for example, a planned departure time
- the planned energy consumption can be specified, for example, particularly simply in the form of a route in kilometers.
- the start time of the automatically executable charging process is determined in such a way that the state of charge adapted to the planned energy consumption is achieved, taking into account the available charging power, shortly before the target time. In this way, the energy storage can remain as long as possible in the gentle park state and will on the other hand have a state of charge with a sufficient amount of stored energy at the desired time.
- Particularly advantageous is a transmission of the target time and the planned energy consumption via Internet, SMS or radio.
- the charger has a computing unit and an interface for receiving temperature information, in particular via an Internet connection, a power supply network, radio and / or GPS, wherein the charger is adapted to calculate a temporal charging power curve based on a charging strategy implemented in the computing unit, taking into account the temperature information and for automatically performing a corresponding charging operation.
- the temperature can be a significant factor for the aging of the energy storage.
- the temperature during the charging process plays an important role. For example, if the temperatures in lithium cells are too low, so-called lithium plating may occur if charging currents are too high.
- temperature information is obtained via sensors on the charger or the battery.
- the proposed invention has the advantage that temperature information about appropriate service providers are not only up-to-date, but also available over a longer period. This allows the calculation of a particularly good because predictive charging strategy, taking into account the received temperature information for a future period to adjust the state of charge of the battery within this period.
- the charger has a computing unit and an interface for receiving information about at least one electricity supplier, in particular with respect to electricity costs, a network utilization and / or energy generation types, in particular via an Internet connection, a power supply network, radio and / or GPS, the charger tet is for calculating a temporal charging power curve and / or for selecting the power supplier based on a charging strategy implemented in the arithmetic unit taking into account the received information, wherein the charger is further configured to automatically perform a corresponding charging operation.
- the arithmetic unit has in particular the functionality of a so-called least-cost router, with which always, advantageously also during the charging process, the cheapest electricity supplier can be determined and set.
- a charging device implemented in the arithmetic unit of the charger has such a charger via known chargers, which can take advantage of a timer setting a low night tariff, the advantage of greater flexibility and automation, since at any time automatically the cheapest electricity tariff different electricity supplier selectable is.
- this is also configured to process over the interface received switching commands of the electricity supplier, which signal the utilization of the power grid or a change to a cheaper tariff.
- such a charger advantageously has an operator interface via which a corresponding charging strategy can be set or selected, for example by selecting a particularly cost-effective or environmentally friendly preprogrammed strategy.
- a setting of a charging strategy insofar as it is not already firmly implemented, is advantageously also feasible via an internet connection, radio or another wireless or wired interface.
- the charger contains a computing unit that is set up to perform a load analysis of a power supply network, in particular based on an analysis of a grid voltage and a grid frequency in the electricity supplier network, and to calculate a temporal charging power curve based on a programmed charging strategy taking into account the utilization analysis, and is also set up for automatically performing a corresponding charging process.
- a load analysis of a power supply network in particular based on an analysis of a grid voltage and a grid frequency in the electricity supplier network
- a temporal charging power curve based on a programmed charging strategy taking into account the utilization analysis
- Such an internal load analysis can, for example, be performed on a Fast Fourier
- FFT Fast Fourier Transformation
- electricity costs can also be saved with the aid of a further advantageous embodiment of the charger.
- ren which provides that the charger is set up for sending an identification code to a power supplier and / or manufacturer, in particular via a power supply network, radio or Internet.
- an electric car can be identified as such for a power provider, so that a reduced electricity tariff can be achieved in this way, if appropriate.
- This is particularly advantageous if a more favorable taxation can be achieved in this way.
- the sending of the identification code is also suitable for the identification of the charger and, where appropriate, connected to the charger energy storage or connected to the charger electric vehicle and devices contained in such an electric vehicle or other
- the charger has a computing unit and an interface for receiving and automated processing of a program code for changing or updating a programming of the computing unit, in particular via an Internet connection or a power supply network.
- a firmware of the charger can be changed or updated via the Internet connection or the power supply network, without further data carriers, drives or computers are needed.
- the arithmetic unit is set up so that such a process either completely automated or by an activation of a user, such as an update button or a menu guide on an input interface, is feasible.
- new firmware for example, transmitted via the power supply to the charger.
- the charger then updates its programming and restarts at a convenient time. This results in particular for the manufacturer, the ability to provide a large number of such chargers a series or product batch with current firmware centrally, for example, via a power grid, and thereby provide the latest features or updates to the customer.
- the charger includes a computing unit with an interface for data exchange with the energy storage, in particular for a transmission of a program code to the energy storage for changing or updating a programming of the energy storage and / or for receiving data from the energy storage, in particular error messages , Maintenance and / or repair requirements, the charger also has a
- This embodiment of the charger has on the one hand the suitability via the Internet, the power supply network and / or over radio received data, in particular program codes for changing or updating a programming of the energy storage to forward to this.
- This allows in particular updating firmware of the energy store by the manufacturer with all the advantages described above in connection with corresponding programming of the charger.
- the charger exchanges the corresponding data between the manufacturer and the energy storage, for example via the supply network.
- an appropriately configured battery can perform an update and a subsequent restart.
- This data exchange between the energy storage device and the manufacturer via the charger also gives the manufacturer the option of supplying a large number of energy storage devices in a series or product batch with up-to-date firmware centrally via a power supply network, thereby making the most up-to-date functions or updates available to the customer. Furthermore, there is the possibility of data transmission from the energy storage device to the charger for transferring the charging parameters to the charger and / or from this, for example, to the manufacturer, for example via the power supply network. In this way, for example, error codes or a request for the exchange of the energy store can be processed centrally by a manufacturer or a service facility. Thus, it is possible, for example, to offer the user of the energy storage a timely replacement of the energy storage, if this has reported on the charger an impending failure.
- a further advantage of such a bidirectional data exchange between charger and energy store is the possibility of receiving a start signal from the energy store by the charger, whereby, in particular, correspond to the description above, a charging by the charger is triggered.
- charging parameters may include technical characteristics of the energy storage, such as a charging capacity or lower and upper limits for allowable charging power or charging currents.
- the charger includes an arithmetic unit with an interface for data exchange with a device connected to the charger, in particular an electric vehicle, in particular for transmitting a program code for changing or updating a programming of the device and / or for receiving data from the device, in particular error messages, operating information, maintenance and / or repair requirements, wherein the charger further comprises an interface for a data exchange via the Internet, a power supply network and / or by radio, in particular with a manufacturer, a workshop and / or a Electricity supplier.
- the exchanged data in particular in the case where the device is an electric vehicle, may include a recall of the vehicle to a workshop, which can be transferred from the manufacturer or a factory seat to the vehicle via the charger, or also a Application of products or services.
- information such as routes, failures, etc., can be forwarded from the vehicle to the manufacturer or a factory seat.
- the programming of an on-board navigator of the vehicle can be updated in this way be, or that of another control unit of the vehicle, which in turn give rise to the above-mentioned advantages of such programming via the charger.
- Said interface for the exchange of data with the device connected to the charger can in particular also include the energy store, ie that means that the device is connected to the charger via the energy store for data exchange.
- said interface can also be realized by a direct connection between the charger and the device concerned, for example by additional connections and cables or by a wireless interface.
- the invention provides a method for
- a charger for an energy storage for example for an electrochemical and / or electrostatic energy storage, in particular for a lithium-ion battery in an electric vehicle, wherein the charger is switched to a full charge mode or a parking charge mode, wherein in the fully charged mode by the charger a Fully charged state and in the parking charging mode a parking state of the energy storage is made, the parking state corresponds to a reduced state of charge of the energy storage, as described above.
- the charger is operated by default in the full load mode and by pressing a parking key (eg when parking at an airport for a long time) in the parking loading mode.
- a parking key eg when parking at an airport for a long time
- the charging process is carried out with a charger of the type proposed here.
- the invention provides an electric vehicle before with a charger proposed here type, the charger is either integrated in the electric vehicle as a so-called on-board charger or configured as a stationary charger.
- Such an electric vehicle has the advantage that a contained in such an electric vehicle electrochemical and / or electrostatic energy storage is particularly easy to put into a park state, so that the life of this energy storage is particularly effectively extended in this way. This leads to an improved performance of the electric vehicle and to a significant reduction of costs by significantly extended replacement intervals of the energy storage.
- Fig. 1 is a schematically illustrated charger with a parking key
- Fig. 2 is a schematic representation of an electric vehicle equipped with a charger.
- a charger is shown here proposed type.
- the charger 1 is connected to an energy storage 2.
- the energy storage 2 is in this embodiment, a lithium-ion battery, but it could be as good as the energy storage, for example, a lead-acid battery or a nickel-metal hydride battery.
- the charger 1 has a circuit 3 with which the charger 1 can be set to a full charge mode or a parking charge mode.
- the charger is set up to produce a full charge state of the energy storage device 1 in full charge mode.
- the parking charging mode the charger 1 is set up to produce a parking state of the energy accumulator 1, wherein the parking state is characterized by a reduced stored amount of energy in the energy storage (compared to a maximum amount of energy storable in the energy storage).
- the charger shown is set to Full Charge mode by default.
- the charger 1 has a
- the charger 1 is further configured to forward an energy taken from the energy store 2.
- the charger 1 comprises a module 5 for feeding back the energy stored in the energy storage in a power grid 6.
- the module which is configured as an inverter module, a voltage absorbed by the energy storage in one with an AC voltage of the Power supplier network synchronized AC voltage converted.
- the charger 1 For charging the energy storage 2, the charger 1 is first connected to the energy storage 2 and the power supply network 6. By default, the energy storage device 2 is fully charged in this way up to a maximum amount of energy storable in the energy store. By pressing the parking key 4, the charger is switched from full load mode to the park load mode. In the parking loading mode, the energy storage 2 is in the parked state with the reduced stored energy amount offset.
- the reduced amount of energy corresponds in this example about 60% of the maximum storable amount of energy. Such a reduced state of charge is particularly suitable for extending the life of lithium-ion batteries.
- the energy storage device 2 is in a current state of charge with a currently stored amount of energy that is greater than the amount of energy associated with the parking state and the charger is in the park charge mode, the energy storage is removed by the charger a corresponding amount of energy until the park state of the energy storage device is reached is.
- the extracted energy is fed back into the power supply network 6 via the module 5.
- FIG. 2 schematically shows an electric vehicle 7 with a charger 1 of a type proposed here and an energy store 2.
- the charger is connected to a power supply network 6 for charging the energy store 2.
- this charger 1 also includes a parking key 4 with which the charger can be put into a parking charging mode via the circuit 3.
- the parking key 4 is advantageously arranged in the driver's compartment of the electric vehicle 7.
- the charger is set up to produce a full charge state of the energy store 2 in a full charge mode and to produce a park charge state of the energy store 2 in the charge-load mode with a reduced amount of stored energy.
- the charger 1 is set by default in VoIl- load mode and is switched by pressing the parking key 4 in the Park Charge mode.
- the charger 1 is in the parking charging mode and the energy storage 2 is in a current state of charge with a stored amount of energy greater than the reduced energy amount associated with the parking state, so much energy is taken by the charger 1 after activation of the charger until the Parkladezu- stand of the energy storage 2 is set, ie until the reduced amount of energy is reached.
- the vehicle is parked, as shown in FIG. 2, and the charger 1 is connected to the power supply network 6, the extracted energy is fed back into the power supply network 6 via a module 5.
- this energy taken from the energy storage 2 can also be passed on to consumers, which are connected to the energy stores (not shown here). This is particularly advantageous when the vehicle is not connected to a power grid 6, ie in particular during a journey.
- the charger 1 has a first interface 8 for receiving and evaluating a sent to the charger activation signal for establishing the full state of charge or the parking state of the energy storage 2. So if the energy storage 2 in the parked electric vehicle 7 in a park state and is a If the corresponding activation signal is sent by a user and received by the charger 1 via the first interface 8, then the charger 2 automatically sets the full charge state of the energy store 2. In this way, the energy storage is largely spared during parking of the electric vehicle 7 by the parking state and fully charged in good time before a planned drive the energy storage 2 (full charge state is set), in this way to achieve a maximum range of the electric vehicle 7.
- This activation signal is transmitted in the example shown here via an SMS from a mobile phone to the charger 2.
- 8 can be added via the first interface 8.
- the charger is further configured to perform a charging process with a target time and a target charge state, the charger 1 having a computing unit 9 for calculating a start time of the charging process and the target charge state based on a current charge state of the energy storage 2, an available charging power of the power supply network 6, the target time point and a planned energy consumption, wherein the charger 1 further comprises an input interface 10 for inputting the target time and the planned energy consumption. If a journey with the electric vehicle 7 is planned at a future point in time, the destination point in time, then the destination time point can be input via the input interface 10.
- this is done in a format with a time and a date. Furthermore, a planned journey length in kilometers is entered via this interface.
- the arithmetic unit is programmed so that from these inputs, the starting time of the charging process and the Zieliellginss be calculated using the current state of charge of the energy storage device 2 and the available charging power of the power supply network 6. In the time until the start time of this charging process, the energy storage device 2 is automatically placed in the park state to extend the life of the energy storage device 2 as possible.
- the energy storage device 2 Only at the start time of the vehicle is the energy storage device 2 more displaced by the charger into a charge state with a charge state corresponding to the target charge state, this amount of energy being calculated to be sufficient for the travel of the entered path length, the start time of the charge being determined on the basis of the Specifications for the Travel distance, available charging power, etc. has been calculated.
- the destination time and the planned energy consumption can also be entered via SMS or via the Internet by means of the first interface 8.
- the charger 1 is further configured to receive temperature information via the first interface 8 from a dedicated weather and temperature information service provider.
- the reception could just as easily be realized via another interface, which is set up to receive weather and temperature information.
- this information could also be received via a second interface 8 ', which is connected to the power supply network, if this information is offered via the power supply network.
- the charger 2 has temperature sensors 10 for measuring an ambient temperature.
- the energy store 2 has temperature sensors 11 for measuring a temperature of the energy store 2.
- the temperature information measured with the temperature sensor 11 is transmitted from the energy store 2 by means of a cable 12 to the charger 1. Alternatively, this transmission can also be done wirelessly by means of a corresponding transmitter in the energy storage device 2 and a receiver in the charger 1.
- the arithmetic unit 9 is set up to process this temperature information from the temperature sensor 11 in the energy store 2, the temperature information of the temperature sensor 10 in the charger 1 as well as the temperature and weather information received via the first interface 8.
- the temperature information received by the service provider can also be received from the utility network 6 or via radio or GPS via special weather services. This received temperature information can be updated daily or for a longer period in the form of a weather forecast available.
- the arithmetic unit is arranged to extract the temperature information from the weather information. On the basis of a future temperature profile created in this way, the arithmetic unit adjusts a charging flow in time so that a temperature-induced aging is minimized as far as possible. Thus, particularly at low temperatures, lithium plating and thus the reduction of the battery life and at high temperatures rapid aging can be prevented.
- the arithmetic unit 9 is further configured to process information about at least one electricity supplier, in particular with regard to electricity costs, a network utilization
- Electricity supplier on the basis of a charging strategy implemented in the arithmetic unit 9, taking into account the received information.
- the information about the supply network 6 is received via the second interface 8 '.
- they could also be received via the interface 8 via radio, the Internet and / or GPS.
- the user If the user is interested, for example, in a reduction of energy costs, he adjusts a charging strategy by means of which the temporal charge performance curve is optimized in such a way that the largest possible amount of energy is obtained from an electricity supplier with the lowest possible electricity tariff.
- the arithmetic unit thus assumes the function of a least-cost router in which tariff information of various electricity providers is compared and the cheapest one is selected.
- Such tariff information with associated switching times of the electricity providers are updated daily via the power supply network.
- the arithmetic unit is programmed in such a way that even during a charging process it becomes a cost-effective electricity provider with automatic scher registration with this can be changed.
- the user is interested in using environmentally friendly generated energy, he chooses a charging strategy by means of the arithmetic unit so that the largest possible amount of energy is obtained from renewable energy sources, the corresponding information can also be received daily updated.
- information about the network utilization of the electricity providers is also evaluated. In this way, a balancing of network utilization can be achieved especially at peak load times, so that the electric vehicle can be used as a peak load buffer for power plants, and the cost of charging the energy storage 2 are reduced (night-time charging).
- the arithmetic unit is set up based on an evaluation of a grid voltage and a grid frequency in the power grid 6 by an internal analysis (eg based on a fast Fourier transform, short FFT) to determine the grid load itself and such a load analysis for to use the calculation of an optimal charging power curve.
- an internal analysis eg based on a fast Fourier transform, short FFT
- the Fourier transform of the mains voltage is calculated.
- the network utilization is measured. In this way, portions of the mains voltage measured by a nominal frequency of the mains voltage by more than a predetermined maximum
- the threshold value deviates, a charging process is interrupted or postponed to a later date. In this way, a charging power curve is adapted to the load of the power grid and reduced peak loads.
- the maximum threshold value in this embodiment is 10 Hz fixed. But equally well, a larger or smaller threshold can be given.
- a device is integrated in the charger for sending an identification code to a power supplier and a manufacturer via the second interface 8 'and the power supply network 6.
- a corresponding identification code is sent in this way, so that an electric provider as the electric vehicle such an identified and possibly calculated a reduced electricity tariff. Furthermore, such identification is necessary in order to achieve more favorable taxation for electric vehicles.
- the arithmetic unit 9 is set up to execute a
- a corresponding reception of such a program code via the power supply network 6 and the second interface 8 is either activated by the user 6 via a user interface 10 or done automatically by the charger , After the automated sending of an identification code via the power supply network, the arithmetic unit receives new firmware data via the power supply network, carries out an update and restarts at a suitable time.
- the firmware update may be manually initiated by a user via the user interface 10 via an update button or menu navigation.
- Such an update is also possible by means of an external computer, which is connected, for example via a radio link via the first interface 8 or wired to the charger 1.
- the arithmetic unit 9 is also set up for data exchange with the energy store 2 via the connection 12.
- program codes are transferred to the energy storage 2 in order, for example, to update the firmware of the energy store 2.
- 12 data from the energy storage, in particular error messages, maintenance and / or repair requests are received via this connection.
- a wireless connection between the energy storage 2 and the charger 1 is possible, about about
- the data received by the energy storage device 2 are then forwarded via the interface 8 'via the power supply network to a manufacturer of the energy storage device 2.
- a start signal for a charging process which a user has sent to the energy store, is forwarded from the energy store to the charger, whereby a charging process of the energy store is triggered by the charging device.
- charging parameters are transferred from the energy store to the charger, which configures the charger.
- These charging parameters include technical characteristics of the energy storage, such as a charging capacity or lower and upper limits for permissible charging power or charging currents. In this way, the charger is tuned exactly at any time on the energy storage.
- charger 1 is connected to the arithmetic unit 9 via the first interface 8 by radio for data exchange with a control unit 13, which also has a corresponding interface 14.
- this connection uses program codes to modify or update one Programming of the control unit 13 is transmitted, so that updates of a firmware of the control unit 13 can be performed.
- data are sent from the control unit 13 and the charger 1 via this connection, in particular error messages, operating information, maintenance and / or
- these data are sent via the power supply network 6 to a manufacturer of the control unit 13 or a workshop.
- other control devices or other energy consumers in the electric vehicle 7 can be connected to the charger wirelessly or wired for such a data exchange.
- an updating of software of an on-board navigation system can be carried out in this way.
- a start signal for a charge which has been transferred to this controller, forwarded by the controller to the charger, whereby a charging process of the energy storage is triggered by the charger.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080035567.2A CN102470774B (zh) | 2009-08-11 | 2010-07-28 | 蓄能器的充电设备和用于使这种充电设备工作的方法 |
US13/390,178 US9296302B2 (en) | 2009-08-11 | 2010-07-28 | Charging device for an energy store and method for operating such a charging device |
KR1020127006356A KR101703722B1 (ko) | 2009-08-11 | 2010-07-28 | 에너지 저장부를 위한 충전 디바이스 및 이러한 충전 디바이스를 작동하기 위한 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009036943A DE102009036943A1 (de) | 2009-08-11 | 2009-08-11 | Ladegerät für einen Energiespeicher und Verfahren zum Betreiben eines solchen Ladegeräts |
DE102009036943.0 | 2009-08-11 |
Publications (2)
Publication Number | Publication Date |
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WO2011018335A2 true WO2011018335A2 (de) | 2011-02-17 |
WO2011018335A3 WO2011018335A3 (de) | 2011-05-19 |
Family
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Application Number | Title | Priority Date | Filing Date |
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PCT/EP2010/060939 WO2011018335A2 (de) | 2009-08-11 | 2010-07-28 | Ladegerät für einen energiespeicher und verfahren zum betreiben eines solchen ladegeräts |
Country Status (5)
Country | Link |
---|---|
US (1) | US9296302B2 (de) |
KR (1) | KR101703722B1 (de) |
CN (1) | CN102470774B (de) |
DE (1) | DE102009036943A1 (de) |
WO (1) | WO2011018335A2 (de) |
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DE102018210524A1 (de) | 2018-06-27 | 2020-01-02 | Robert Bosch Gmbh | Verfahren zum Aufladen von Akkupacks für Elektrowerkzeugmaschinen sowie Ladegerät zur Durchführung des Verfahrens |
FR3099428A1 (fr) * | 2019-08-01 | 2021-02-05 | Renault S.A.S | Procédé de charge d’une batterie de véhicule sur une borne de charge |
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- 2010-07-28 KR KR1020127006356A patent/KR101703722B1/ko active IP Right Grant
- 2010-07-28 CN CN201080035567.2A patent/CN102470774B/zh active Active
- 2010-07-28 US US13/390,178 patent/US9296302B2/en active Active
- 2010-07-28 WO PCT/EP2010/060939 patent/WO2011018335A2/de active Application Filing
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9296302B2 (en) | 2009-08-11 | 2016-03-29 | Continental Automotive Gmbh | Charging device for an energy store and method for operating such a charging device |
DE102018210524A1 (de) | 2018-06-27 | 2020-01-02 | Robert Bosch Gmbh | Verfahren zum Aufladen von Akkupacks für Elektrowerkzeugmaschinen sowie Ladegerät zur Durchführung des Verfahrens |
WO2020001907A1 (de) | 2018-06-27 | 2020-01-02 | Robert Bosch Gmbh | Verfahren zum aufladen von akkupacks für elektrowerkzeugmaschinen sowie ladegerät zur durchführung des verfahrens |
FR3099428A1 (fr) * | 2019-08-01 | 2021-02-05 | Renault S.A.S | Procédé de charge d’une batterie de véhicule sur une borne de charge |
Also Published As
Publication number | Publication date |
---|---|
US9296302B2 (en) | 2016-03-29 |
WO2011018335A3 (de) | 2011-05-19 |
CN102470774B (zh) | 2015-07-08 |
CN102470774A (zh) | 2012-05-23 |
KR101703722B1 (ko) | 2017-02-22 |
DE102009036943A8 (de) | 2011-06-01 |
KR20120055655A (ko) | 2012-05-31 |
US20120242288A1 (en) | 2012-09-27 |
DE102009036943A1 (de) | 2011-03-03 |
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