Patent application number | Description | Published |
20090034159 | Method of Monitoring and/or Controlling or Automatically Controlling the Voltage of at Least One Group of Cells in a Compound of Cells of an Energy Storage Device - Thus, according to the invention, for monitoring and/or controlling or automatically controlling the voltage of at least one group of cells in a cell compound of an energy storage device, particularly an energy storage device in an onboard power supply system of a motor vehicle, a data communication is carried out between a central logic and a cell group logic by way of the rail line connecting the latter, in which case voltage levels exist between an idle level situated at or above a maximal voltage level, up to which the cell group logic exchanges energy with the rail line for charging or discharging the cell group, and a data level situated above the idle level. | 02-05-2009 |
20090132119 | ELECTRICAL SYSTEM OF A VEHICLE, PROVIDED FOR THE TOWING AWAY OF THE SAME - A suitable electrical system for a motor vehicle is provided, which system requires a voltage supply during a possible towing-away operation. A voltage-supply control device recognizes the provision of an external voltage supply, in particular by way of a towing vehicle for the motor vehicle, and controls the voltage supply in the motor vehicle in such a manner that only one or more subsystems of the entire electrical system of the motor vehicle are supplied with voltage. | 05-21-2009 |
20090207680 | Method for the allocation of addresses in the memory cells of a rechargeable energy accumulator - A method for placing addresses in the memory cells of a rechargeable energy storage device for use in a motor vehicle, each of which memory cells includes at least one sensor device and an individualizing device for storing an address. In order to optimize the placing of addresses in the memory cells of a rechargeable storage device, the functionality of the memory cells is checked using the sensor device in the vehicle, an individual address is assigned to each operable memory cell, and the individual address is used to individualize the sensor values made available from the sensor device. | 08-20-2009 |
20090208817 | Method for Extending the Useful Life of a Chargeable Energy Storage Unit - A method is provided for extending the useful life of a rechargeable energy storage unit for use in a motor vehicle, such as, in particular, a double layer capacitor, a lithium ion storage unit, a lithium ion capacitor or a NiMH storage unit, which exhibits a plurality of storage cells. In order to extend the useful life of the energy storage unit, it is proposed that the temperature and/or storage capacity of each of the storage cells be measured. If the temperature of a storage cell exceeds a reference value for the temperature of the storage cell on the storage cell is partially discharged, and, in this way, its voltage is reduced. | 08-20-2009 |
20100021809 | Energy Store with Guide Rod - An energy storage device is provided including multiple back-to-back-disposed storage cells, from the first end of which the plus pole is made to emerge and from the other end of which the minus pole is made to emerge, thereby creating a series circuit of the storage cells. In order to reduce fabrication costs, it is proposed that each of the storage cells have a continuous opening between the plus pole and the minus pole, through which opening a guide rod extends that secures the back-to-back-disposed storage cells in this position. | 01-28-2010 |
20100044130 | Method of Controlling an Overrun Operation of a Motor Vehicle, a Control Device for Implementing the Method, and a Corresponding Motor Vehicle - A method controls an overrun operation in a motor vehicle, wherein, in the presence of predetermined switch-off conditions, an overrun switch-off of the internal-combustion engine takes place by interrupting the fuel feed, and wherein, when a predetermined restoring speed is reached or fallen below, the fuel feed is resumed. Starting from an operating state with an activated overrun switch-off, the transmission line between the output of the engine and the input of the transmission device is monitored as to whether a torque difference is occurring which is greater than or equal to a predetermined limit torque. In such a case, the internal-combustion engine is driven by an electric machine coupled with the crankshaft of the internal-combustion engine such that a rotational speed of the internal-combustion engine is adjusted to be greater than or equal to the restoring speed. | 02-25-2010 |
20100121592 | Method for Determining the Actual Amount of Energy Available in an Energy Storage Module - The amount of energy actually available in an energy storage module having a plurality of individual storage elements connected in series is determined. An upper and/or a lower limit voltage for the energy storage module is determined dynamically. During a charging operation of the energy storage module, in the event that a maximally permissible upper cell voltage is reached on at least one storage cell, the upper limit voltage of the energy storage module is determined by summing all cell voltages of all storage elements existing at that point-in-time. During a discharging operation, if a minimally permissible lower cell voltage is reached on at least one storage element, the lower limit voltage is determined by summing all cell voltages existing at that point-in-time. The actually available amount of energy is computed as a function of the determined limit voltage or voltages and of the determined actual storage capacity. | 05-13-2010 |
20120161710 | Device for Balancing an Energy Accumulator - A device for balancing an energy accumulator, especially an energy accumulator in an on-board power supply system of a motor vehicle, is provided. The energy accumulator is formed by a cell assembly of a serial connection of a plurality of cell groups, respective balancing circuits being connected to voltage connections of respective cell groups and comprising a discharge resistor. The discharge resistor of a respective balancing circuit has a temperature-dependent resistance characteristic, and the discharge resistors of at least some of the balancing circuits are thermally intercoupled. | 06-28-2012 |
20120194129 | Energy Storage System for Supplying Electrical Energy to Consumers in a Vehicle - An energy storage system supplies electric energy to consuming devices in a vehicle, particularly in a motor vehicle. The system includes a first power grid having a first energy accumulator and a second power grid having a second energy accumulator, the first and second power grids being electrically coupled such that electric energy from the first power grid is feedable to the second power grid for regenerating the second energy accumulator. The energy storage system is operatively configured such that it is detected when a number of conditions has been met, the number of conditions including at least that an external charging device is connected to the first power grid for charging the first energy accumulator. In the event that the number of conditions has been met, regeneration of the second energy accumulator is carried out. | 08-02-2012 |
20120261982 | Multi-Voltage On-Board Power Supply System for a Motor Vehicle - In the case of a multi-voltage on-board power supply system for a motor vehicle having a hybrid or electric drive, comprising a dc-dc converter, by means of which a high voltage level having a higher direct-current voltage and at least a first energy storage device is connected to a low voltage level having a lower voltage and at least a second energy storage device, wherein the system comprises a charging interface for charging external devices, at least one converter phase of the dc-dc converter can be disconnected from the low voltage level and instead can be connected with the charging interface, and a third energy storage device can be connected to the charging interface in order to supply the third energy storage device with a lower voltage and permit a charging of the third energy storage device by the energy flow from the first energy storage device. | 10-18-2012 |
20130076501 | Method and Device for Operating a Motor Vehicle - At least one weighting value is determined in a manner that is influenced by a vehicle user. A maximum released power, which a predefined electrical consumer of the motor vehicle may consume, is determined as a function of the weighting value. The power consumption of the electrical consumer is controlled as a function of the maximum power that is released. | 03-28-2013 |
20140114498 | Control Unit for Operating a Motor Vehicle - A control unit for operating a motor vehicle includes a basic module and a function module, which is constructed in a secured run-time environment. The control unit includes predefined first and second interfaces, which each couple the basic module and the function module. The basic module is designed for determining one or more function input quantities, depending on at least one operating quantity, and for providing the function input quantities at the first interface. The basic module is further designed for determining control variables of the actuators, depending on one or more output quantities, which are provided at the second interface. The function module is designed for determining the one or more output quantities, depending on the function input quantities provided t the first interface and a predefined quantity of rules, which output quantities characterize an operating strategy from a quantity of predefined operating strategies, and for providing the output quantities at the second interface. | 04-24-2014 |
20140350740 | Method for Controlling an Electrical System - A method is provided for controlling an electrical system. A first characteristic value of the electrical system is determined. For the first characteristic value, a suitable first group of optimizing variables is determined. A first group of command variables suitable for the first group of optimizing variables is determined. For the first group of command variables, a first group of current boundary values is determined. For each boundary value of the first group of current boundary values, a prediction is made to obtain a first group of predicted boundary values. A probability is assigned to each predicted boundary value of the first group of predicted boundary values to obtain a first group of predicted, probability-related boundary values. All boundary values of the first group of current boundary values and of the first group of predicted, probability-related boundary values are prioritized in order to obtain prioritized boundary values. The prioritized boundary values are used to calculate at least one control value with which the system may be controlled. | 11-27-2014 |
20150019077 | Vehicle Having Electrical Consumers Integrated With a Physical Onboard Power Supply System - A vehicle with an internal combustion engine, with a physical onboard power supply system and with at least one electrical energy source, wherein electrical consumers are integrated in the physical onboard power supply system and the physical onboard power supply system comprises a switchable terminal 15, wherein, when the terminal 15 is actuated and the internal combustion engine is switched off or when the internal combustion engine is running at a low rotational speed, each of the electrical consumers is assignable by a control device to either a first group of electrical consumers or a second group of electrical consumers, an electrical consumer of the first group is at least partly able to be switched on and off by a user, an electrical consumer of the second group cannot be switched by the user, and an electrical consumer which is switched on at least partly can be supplied with electrical power from the at least one electrical energy source. | 01-15-2015 |