Audi Ag

Volkswagen Ag

Alexander Barke

Christian Niemeier

Martin F Eberhard

Steven Diamond

Jessica Riley

Marc E Tarpenning

Rolf Naumann

Reinhard Hofmann

Steve Diamond

Manfred Ammler

An operating element of a motor vehicle provided with a contact surface. The contact surface is provided with an element, controllable via actuators, that responds to the sense of touch of an operator, through which a feedback is provided to the operator about the currently engaged gear of the transmission of the motor vehicle.

Operating element of a motor vehicle

Method for operating a motor vehicle having at least one sensor for detecting a user state and/or at least one parameter from which the user state can be deduced, wherein a function and/or a device of the motor vehicle is automatically controlled by a control device, depending on a detected user state and/or a detected change in the user state, a level of autonomy which specifies to what extent a function and/or a device of the motor vehicle is controlled automatically by a control device of the motor vehicle or is manually controlled by a user, changes at least one function and/or at least one device of the motor vehicle and the function and/or the device is controlled according to the level of autonomy.

Method for operating a motor vehicle and associated motor vehicle

A method and a device for determining the actual capacity of a battery uses a set of characteristic curves, wherein at the start of a discharge process the initial voltage of the battery, the magnitude of the discharge current and the temperature of the battery are determined. From this, by comparison with the data provided in the set of characteristic curves, a characteristic curve is selected and an initial state of the battery is determined. At the end of the discharge process, the final voltage of the battery is measured. The final voltage is compared, at the end of the discharge, with the voltage expected based on the selected characteristic curve and, in the event that the final voltage is smaller than the voltage expected based on the discharge process, it is determined that the actual capacity of the battery is smaller than the available capacity assumed at the start of the discharge process.

Method and device for determining the actual capacity of a battery

A method for balancing voltage for a multi-cell battery system, in which the battery system includes at least two parallel groups of cells connected in series and in which the parallel group of cells includes at least one battery cell, includes: charging the battery system by keeping the voltage of all parallel groups of cells less than or equal to a second threshold voltage value, while at least the voltage of one group of parallel cells is less than or equal to a first threshold voltage; and while at least the voltage of one group of parallel cells is less than or equal to a second threshold voltage; and while the charging current is above a predefined minimal current. The method further includes measuring the voltage of each parallel group of cells while electrical loads are shut off and dissipating energy in each of the parallel group of cells of the amount that is represented by the voltage difference between the individual parallel group of cells and the parallel group of cells with the lowest voltage.

Balancing voltage for a multi-cell battery system

Growing community of inventors

Ingolstadt, Germany

Alexander Barke