In one aspect, a method comprises receiving first data pertaining to a battery pack of a vehicle, wherein the first data is received from sensors associated with the vehicle, and the first data pertains to a battery pack current, a cell voltage, a cell current, a cell temperature, or some combination thereof; receiving second data pertaining to simulation of the battery pack; receiving third data from a manufacturer; receiving historical data on a fleet of vehicles that use the battery pack; predicting a remaining useful life of the battery pack of the vehicle by using a hybrid model comprising a physics-based model that receives the based on the first, second, third, and historical data, and generates properties pertaining to the battery pack; a machine learning model that uses the properties to predict the remaining useful life of each cell of the battery pack; and transmitting the remaining useful life.

A vehicle includes a drive motor with electrically upstream electric converter, a drive controller generating converter control signals actuating the converter for driving and normal braking operation, and an immobilizer electrically connected between the converter and the drive controller preventing converter control signals which would produce a driving operation of the drive motor from being forwarded to the converter when the vehicle is stopped, in particular at a stop. An alternate regulating device and a monitoring device allow activation of a special braking mode in the presence of an emergency braking command and in the event of which the drive controller is deactivated or at least signal flows of converter control signals of the drive controller to the immobilizer are interrupted, the immobilizer is activated, and converter control signals producing braking operation of the drive motor are transmitted to the converter through the immobilizer by the alternate regulating device.

A battery system includes: a battery and a battery management system (BMS) for controlling charging of the battery depending on a normal mode using a first battery capacity between a first lower limit state of charge (SOC) and a first upper limit SOC or an eco-friendly mode using a second battery capacity between a second lower limit SOC and a second upper limit SOC, the first lower limit SOC is smaller than the second lower limit SOC, and the first upper limit SOC is greater than the second upper limit SOC.

A motor vehicle, in particular an at least partly electrically driven motor vehicle, has a battery device with at least one battery cell. The battery device is arranged in a floor region of the motor vehicle and has a protective device for protecting the battery device from mechanical action. The protective device has a protective plate, which is arranged in such a way that it covers the battery device at least in some regions, so that any mechanical actions are absorbed by the protective plate. The protective device also has an acoustic monitoring device, which monitors the protective plate acoustically and with which a signal can be output when a noise characteristic of a mechanical impairment of the protective plate is registered. Also disclosed is a method for monitoring the protective device.

A motor vehicle, in particular an at least partly electrically driven motor vehicle, has a battery device with at least one battery cell. The battery device is arranged in a floor region of the motor vehicle and has a protective device for protecting the battery device from mechanical action. The protective device has a protective plate, which is arranged in such a way that it covers the battery device at least in some regions, so that any mechanical actions are absorbed by the protective plate. The protective device also has an acoustic monitoring device, which monitors the protective plate acoustically and with which a signal can be output when a noise characteristic of a mechanical impairment of the protective plate is registered. Also disclosed is a method for monitoring the protective device.

When a use range of an SOC (State Of Charge) of a secondary battery is expanded, the use range of the SOC is expanded by increasing an upper limit value or decreasing a lower limit value of the use range of the SOC. The increasing the upper limit value or decreasing the lower limit value of the use range of the SOC is determined to a side causing a smaller increase in a degradation rate of the secondary battery, based on at least one of a cycle degradation characteristic that defines a cycle degradation rate in accordance with the use range of the SOC and a current rate of the secondary battery and a storage degradation characteristic that defines a storage degradation rate in accordance with the SOC and a temperature of the secondary battery, and a typical use condition of the secondary battery based on a use history of the secondary battery.

A battery information processing system comprises: an acquisition unit configured to acquire battery information including use histories of batteries; a classification unit configured to classify the batteries for each property on the basis of properties of the batteries and store the battery information in a plurality of databases classified for each property; a selection unit configured to select a database including high priority battery information from the plurality of classified databases; a determination unit configured to determine the selected database as a database for selecting a combination of a plurality of batteries in a case in which a property of an assembled battery calculated by combining a plurality of batteries satisfies a criterion; and a presentation unit configured to present combination information of the plurality of batteries selected in a descending order from the highest coincidence.

A vehicle includes a controller that, responsive to data indicating a voltage associated with an inrush current through a main contactor exceeds a first threshold, commands the main contactor to open and inhibits the vehicle from being driven, and responsive to data indicating the voltage exceeds a second threshold less than the first threshold, commands the main contactor to sequentially open and then close.

A vehicle includes a controller that, responsive to data indicating a voltage associated with an inrush current through a main contactor exceeds a first threshold, commands the main contactor to open and inhibits the vehicle from being driven, and responsive to data indicating the voltage exceeds a second threshold less than the first threshold, commands the main contactor to sequentially open and then close.

A battery control device includes a processor that is configured to estimate a full charge capacity of a battery based on an amount of current supplied to the battery from a start of charging to an end of charging and voltages of the battery at the start of charging and the end of charging when the battery is charged from a state where a voltage of the battery is below a predetermined start voltage threshold value to a state where the voltage exceeds a predetermined end voltage threshold value, and the battery satisfies a predetermined permission condition.