Patent application number | Description | Published |
20090301435 | Method and device for ascertaining one or more starts of combustion in a cylinder of an internal combustion engine from a provided cylinder-pressure curve - A method for determining a point in time of a start of combustion in a cylinder of an internal combustion engine includes: providing a base compression pressure model which gives a curve of a compression pressure in the cylinder as a function of the operating point; adjusting the base compression pressure model using measured cylinder pressures of at least one operating state of the internal combustion engine at points in time at which no combustion is taking place in the cylinder, in order to obtain an adjusted compression pressure model; and determining a point in time of a start of combustion with the aid of a pressure curve determined by the adjusted compression pressure model. | 12-10-2009 |
20130162045 | BATTERY SYSTEM AND METHOD - A battery system comprising at least two battery modules, wherein each battery module consists of at least one battery and a controllable first switching apparatus, which is designed to connect the respective battery module into a current path of the battery system or to electrically bridge the respective battery module, comprising at least one controllable second switching apparatus, which is designed to electrically connect the at least two battery modules in parallel or in series and comprising a control device, which is designed to control the controllable first switching apparatuses and the controllable second switching apparatus as a function of the requested electrical power. In addition, the present invention discloses a method of operating a battery system. | 06-27-2013 |
20130221878 | METHOD FOR SETTING A DESIRED OUTPUT VOLTAGE OF A POWER SUPPLY BRANCH OF A CONTROLLABLE ENERGY STORE - A method for setting a desired output voltage of a power supply branch of a controllable energy store, for controlling and supplying electrical energy to an n-phase electric motor, where n≧1. The controllable energy store has n parallel power supply branches, which each have at least two serially connected energy storage modules including at least one electrical energy storage cell having an assigned, controllable coupling unit; are connected to a reference bus on one side; and are connected to phases, respectively, of the electric motor on the other side. At least one coupling unit is controlled by pulses so that the arithmetic mean of the output voltage of a power supply branch corresponds to the desired output voltage. The energy storage cells respectively assigned to the coupling unit are switched into the respective power supply branch for a pulse duration, and are bypassed during a pause time. | 08-29-2013 |
20130234647 | METHOD FOR TRANSFERRING ENERGY BETWEEN AT LEAST TWO ENERGY STORAGE CELLS IN A CONTROLLABLE ENERGY STORE - In a method for transferring energy between at least two energy storage cells in a controllable energy store that serves to control and to supply electrical energy to an n-phase electric machine, which energy store has n power supply arms which each have at least two series-connected energy storage modules which each include at least one electrical energy storage cell with an associated controllable coupling unit, and are connected to one respective phase of the electric machine, in a charging phase, all coupling units of those energy storage modules which are to be used as an energy source are controlled in such a way that the respectively associated energy storage cells are connected into the respective power supply arm. | 09-12-2013 |
20130241447 | Systems for charging an energy store, and method for operating the charging systems - A system for charging at least one energy reservoir cell in a controllable energy reservoir for controlling/supplying electrical energy to an n-phase electrical machine. The controllable energy reservoir has n parallel energy supply branches each having at least two series connected energy reservoir modules, each encompassing at least one electrical reservoir cell having an associated controllable coupling unit. The energy supply branches are connectable to a reference bus and a respective phase of the machine. As a function of control signals, the coupling units interrupt the respective energy supply branch or bypass the cells or switch the associated cells into the respective energy supply branch. To enable charging of at least one cell, at least two phases of the machine are connectable via at least one respective freewheeling diode to a positive pole of a charging device, and the reference bus is connectable to a negative pole of the device. | 09-19-2013 |
20130241472 | POWER SUPPLY SYSTEM AND METHOD FOR CHARGING AT LEAST ONE ENERGY STORAGE CELL SERVING AS AN ENERGY STORE FOR A DC LINK IN A POWER SUPPLY SYSTEM - A power supply system has an n-phase electric machine, where n≧1, and a controllable energy store serving to control and to supply electrical energy to the electric machine. The controllable energy store has n parallel power supply arms which each have at least two series-connected energy storage modules which each include at least one electrical energy storage cell with an associated controllable coupling unit, are connected on one side to a reference bus and are connected on the other side to one respective phase of the electric machine. In dependence on control signals, the coupling units either bridge the respectively associated energy storage cells or connect the respectively associated energy storage cells into the power supply arm. | 09-19-2013 |
20130249474 | System for Charging an Energy Store, and Method for Operating the Charging System - A system for charging at least one energy reservoir cell in a controllable energy reservoir serving to control/supply electrical energy to an n-phase electrical machine (n≧2). The controllable energy reservoir has n parallel energy supply branches each having at least two series connected energy reservoir modules, each encompassing at least one electrical energy reservoir cell having an associated controllable coupling unit, are connected to a reference bus, and are connected to a respective phase of the machine. As a function of control signals, the coupling units interrupt the respective energy supply branch or bypass the associated reservoir cells or switch the associated reservoir cells into the respective energy supply branch. To charge at least one cell, at least two phases of the machine are connectable via at least one respective free-wheeling diode to a negative pole of a charging device. The reference bus is connectable to the negative pole of the device. Those energy supply branches connected to those phases which are connectable to the negative pole of the device each have a contact point disposed between two energy reservoir modules and is connectable via at least one free-wheeling diode to a positive pole of the device. | 09-26-2013 |
20130257355 | SYSTEM FOR CHARGING AN ENERGY STORE, AND METHOD FOR OPERATING THE CHARGING SYSTEM - A system for charging at least one energy reservoir cell in a controllable energy reservoir which serves to control and supply electrical energy to an n-phase electrical machine where n≧1. The controllable energy reservoir has n parallel energy supply branches that each have at least two energy reservoir modules, connected in series, that each encompass at least one electrical energy reservoir cell having an associated controllable coupling unit. The energy supply branches are connected on the one hand to a reference bus and on the other hand to a respective phase of the electrical machine. As a function of control signals, the coupling units either interrupt the energy supply branch or bypass the respectively associated energy reservoir cells or switch the respectively associated energy reservoir cells into the energy supply branch. All energy supply branches are connectable via at least one inductance and one rectifier unit to an external energy supply network. The reference bus is furthermore connectable to the rectifier unit. | 10-03-2013 |
20130270905 | SYSTEM FOR CHARGING AN ENERGY STORE, AND METHOD FOR OPERATING THE CHARGING SYSTEM - A system for charging at least one energy reservoir cell in a controllable energy reservoir which serves to control and supply electrical energy to an n-phase electrical machine where n≧1. The controllable energy reservoir has n parallel energy supply branches that each have at least two energy reservoir modules, connected in series, that each encompass at least one electrical energy reservoir cell having an associated controllable coupling unit, and are connected to a reference bus and to a respective phase of the electrical machine. As a function of control signals, the coupling units interrupt the respective energy supply branch, bypass the respectively associated energy reservoir cells, or switch the respectively associated energy reservoir cells into the respective energy supply branch. | 10-17-2013 |
20130280588 | BATTERY MODULE HAVING REDUCED TOTAL INDUCTANCE - The invention relates to a battery module ( | 10-24-2013 |
20130280607 | BATTERY CELL HAVING REDUCED CELL INDUCTANCE - The invention relates to a battery cell ( | 10-24-2013 |
20130285456 | CONTROLLABLE ENERGY STORE AND METHOD FOR OPERATING A CONTROLLABLE ENERGY STORE - The invention relates to a controllable energy store ( | 10-31-2013 |
20130293165 | SYSTEM FOR COUPLING AT LEAST ONE DC SOURCE TO A CONTROLLABLE ENERGY STORE AND ASSOCIATED OPERATING METHOD - The invention relates to a system for coupling at least one DC source ( | 11-07-2013 |
20130307445 | SYSTEM FOR CHARGING AN ENERGY STORE, AND METHOD FOR OPERATING THE CHARGING SYSTEM - The invention relates to a system for charging at least one energy storing cell ( | 11-21-2013 |
20130314008 | ENERGY STORAGE DEVICE FOR A SEPARATELY EXCITED ELECTRICAL MACHINE - The invention relates to an energy storage device ( | 11-28-2013 |
20130314045 | CHARGING AN ENERGY STORE - The invention relates to a system for charging at least one energy storing cell ( | 11-28-2013 |
20130314046 | SYSTEM FOR CHARGING AN ENERGY STORE, AND METHOD FOR OPERATING THE CHARGING SYSTEM - The invention relates to a system for charging at least one energy storing cell ( | 11-28-2013 |
20130317661 | CONTROLLABLE ENERGY STORE AND METHOD FOR OPERATING A CONTROLLABLE ENERGY STORE - The invention relates to a controllable energy store ( | 11-28-2013 |
20130320888 | SYSTEM COMPRISING AN ELECTRICALLY EXCITED MACHINE - The invention relates to a system comprising an n-phase separately excited electrical machine ( | 12-05-2013 |
20130320912 | SYSTEM FOR CHARGING AN ENERGY STORE, AND METHOD FOR OPERATING THE CHARGING SYSTEM - The invention relates to a system for charging at least one energy storing cell ( | 12-05-2013 |
20140099523 | ENERGY STORAGE DEVICE WITH HEATING DEVICE AND METHOD FOR HEATING ENERGY CELLS OF AN ENERGY STORAGE DEVICE - The invention relates to an energy storage device ( | 04-10-2014 |
20140159661 | SYSTEM WITH BATTERY CHARGING DEVICE AND VEHICLE ELECTRICAL SYSTEM POWER SUPPLY STAGE - The invention relates to a system ( | 06-12-2014 |
20140167515 | ENERGY STORAGE DEVICE, SYSTEM WITH ENERGY STORAGE DEVICE AND METHOD FOR GENERATING A SUPPLY VOLTAGE OF AN ENEGRY STORAGE DEVICE - The invention relates to an energy storage device ( | 06-19-2014 |
20140340047 | SYSTEM AND METHOD FOR CONTROLLING AN ENERGY STORAGE DEVICE - The invention relates to a method for controlling an energy storage device that comprises n output connections, wherein n≧2, for producing a supply voltage at each of the output connections, and n energy supply branches, which are each coupled to one of the output connections, wherein each of the energy supply branches comprises a plurality of series-connected energy storage modules that each comprise an energy storage cell module comprising at least one energy storage cell, and a coupling device having coupling elements in a full bridge circuit that is designed to connect or bridge the energy storage cell module selectively in the respective energy supply branch. The method according to the invention comprises the following steps: for a number k of energy storage modules of at least one first energy supply branch, generating a first pulse width modulated control signal for controlling the coupling devices of the respective energy storage modules by comparing a first target value signal with a number 2k first periodic reference signals having a pulse period T, which signals each have a phase shift of T/2k relative to the adjacent first reference signals; and, for a number k of energy storage modules of at least one second energy supply branch, generating a second pulse width modulated control signal for controlling the coupling devices of the respective energy storage modules by comparing a second target value signal with a number 2k of second periodic reference signals having the pulse period T, which each have a phase shift of T/2k relative to the adjacent second reference signals. The second reference signals each have a phase shift of T/4k relative to the first reference signals. | 11-20-2014 |
20140340052 | SYSTEM AND METHOD FOR CHARGING THE ENERGY STORAGE CELLS OF AN ENERGY STORAGE DEVICE - The invention relates to a method for charging the energy storage cells of an energy storage device, which comprises: n first output connections, wherein n>1, for issuing a supply voltage at each of the output connections, a second output connection, wherein a charging device can be connected between the first output connections and the second output connection, and n parallel-connected energy supply branches, which are each coupled between a first output connection and the second output connection, wherein each of the energy supply branches comprises a plurality of series-connected energy storage modules, which each comprise an energy storage cell module comprising at least one energy storage cell, and a coupling device having coupling elements that are designed to selectively connect or bridge the energy storage cell module in the respective energy supply branch. The method according to the invention comprises the following steps: determining a maximum possible charging voltage of a charging apparatus, which provides a charging voltage for the energy storage device; determining the maximum number of the energy storage cell modules of an energy supply branch at which the sum of the output voltages of the energy storage cell modules, which is dependent on the instantaneous charge states of the energy storage cells of all the energy storage cell modules of an energy supply branch, is still lower than the maximum possible charging voltage; and selecting and controlling the coupling elements of energy storage modules of the energy supply branch, such that in each case only the maximum number of energy storage cell modules is coupled into the energy supply branch. | 11-20-2014 |