Patent application number | Description | Published |
20130147434 | Method for Balancing States of Charge of a Battery having a Plurality of Battery Cells as well as a Corresponding Battery Management System and a Battery - A method for balancing states of charge of battery cells of a battery includes determining the individual cell capacities of the cells. A k-th cell having the smallest cell capacity, the individual states of charge, the depth of discharge, a target depth of discharge, and a target state of charge are determined. The deviation of the state of charge of a cell from the target state of charge (ΔSOC | 06-13-2013 |
20140097851 | Method for Transmitting Data Between a Control Device and at least one Measurement Device by means of a Bus System, and a Battery Management Unit - The disclosure provides a method for transmitting data between a control device and at least one measurement device via a bus system. The method includes recording first measurement data relating to at least one measurement variable with the at least one measurement device with a first measurement data resolution within a first measurement cycle, transmitting the recorded first measurement data to the bus system at a first measurement frequency within the first measurement cycle. The method further includes recording second measurement data relating to the at least one measurement variable with the at least one measurement device with a second measurement data resolution within a second measurement cycle. The second measurement data resolution is less than the first measurement data resolution. The method also includes transmitting the recorded second measurement data to the bus system at a second measurement frequency within the second measurement cycle. | 04-10-2014 |
20140180514 | Data Transmission Method for a Battery Management System - A method for compressing measurement data which is transmitted from sensor control units via a data bus to a primary control unit of a battery management system for vehicles, includes transmitting a rate of change/slope of the measurement data to the primary control unit at a start of measurements. The method further includes transmitting deviations/differences in the measurement data from a current slope, and reconstructing, without loss of information, correct measured values from the rates of change/slope and the received deviations/differences with the primary control unit. | 06-26-2014 |
20140302355 | Method for Ascertaining Operating Parameters of a Battery, Battery Management System, and Battery - The disclosure relates to a method for ascertaining permissible operating parameters of a battery. For this purpose, operating parameters of the battery are measured, and further relevant operating parameters of the battery are determined from the measured operating parameters. Furthermore, at least one of the determined operating parameters is compared with a predefined comparison range. If the at least one operating parameter lies within the predefined comparison range, the permissible operating range of the at least one operating parameter is determined using a mathematical model of the battery. However, if the at least one battery parameter lies outside the predefined comparison range, the permissible operating range of the at least one operating parameter is determined using previously stored battery data. | 10-09-2014 |
20140346982 | Method and Apparatuses for Authenticating Measurement Data for a Battery - A method for authenticating measurement data for a battery that comprises at least one battery module, having an associated module controller, and a central controller has the following steps: capture of measurement data from battery units by the module controller; ascertainment of at least one additional information carrier, which is set up to authenticate the measurement data, by the module controller; transmission of the measurement data and of the additional information carrier from the module controller to the central controller; and validation of the measurement data by the central controller using the additional information carrier. Furthermore, a data structure, a computer program and a battery management system are specified that are set up to perform the method, and also a battery and a motor vehicle, the drive system of which is connected to a battery of this kind. | 11-27-2014 |
20140349155 | Method and Devices for Making Available Information for the Purpose of Performing Maintenance and Servicing of a Battery Unit - A method for making available information for the purpose of performing maintenance and servicing of a battery unit includes detecting and quantizing useful data of a battery unit and forming histograms which have frequencies of the occurrence of specific values of the individual quantized useful data items or values derived therefrom. In this context there is provision that at least one current and at least one aggregated histogram are formed and stored in a non-volatile memory. Furthermore, a data structure, a computer program, and a battery management system are specified which are configured to execute the method, as well as a battery and a motor vehicle whose drive system is connected to a battery of this type. | 11-27-2014 |
20140349156 | Method and Apparatuses for Providing Information for Maintenance and Service Purposes for a Battery Unit - A method for providing information for maintenance and service purposes for a battery unit includes capturing and quantizing use data for a battery unit and forming a histogram that has frequency values for the occurrence of particular values of the individual quantized use data items or values derived therefrom. At least one additional information carrier is ascertained that is set up to reconstruct the histogram, and the histogram and the at least one additional information carrier are stored in a nonvolatile memory. Furthermore, a data structure, a computer program and a battery management system are specified that are set up to perform the method, and also a battery and a motor vehicle, the drive system of which is connected to such a battery. | 11-27-2014 |
20140350876 | Method and Devices for Making Available Information for the Purpose of Performing Maintenance and Servicing of a Battery - A method makes available information for the purpose of performing maintenance and servicing of a battery, which includes at least one battery module with an assigned module control device and a central control device, wherein at least one module control device has a non-volatile memory. The method comprises detecting and quantizing useful data of battery units, forming a histogram which has frequency values of the occurrence of specific values of the individual quantized useful data or values derived therefrom, transferring the histogram from the central control device to a module control device, and storing the histogram in the non-volatile memory of the module control device. Furthermore, a computer program and a battery management system are specified which are configured to execute the method, as well as a battery and a motor vehicle whose drive system is connected to a battery of this type. | 11-27-2014 |
20150058626 | Programming Method, Battery with an Arrangement for Carrying out the Programming Method and a Motor Vehicle Comprising said Type of Battery - A programming method includes programming of at least two second data processing modules using a first data processing module. The programming method further includes providing first authentication information messages to the first data processing module, wherein each of the first authentication information messages is generated from each of at least two second data processing modules. The programming method further includes generating second authentication information messages, wherein each of the second authentication information messages is generated from each of the first authentication information messages, wherein the second authentication information messages are transmitted jointly from the first data processing module using one-time sending to the at least two second data processing modules. | 02-26-2015 |