Abstract: A method for controlling a power brake system, for a motor vehicle engaged in piloted driving, which includes two electrically controllable actuator units. The first actuator unit includes a braking-intent detection device, and a first pressure generation unit for generating a brake pressure in a brake circuit. The second actuator unit includes a second pressure generation unit redundant to the first pressure generation unit. A first electronic control device acquires signals of the braking-intent detection device and controls the actuator unit based on the detected braking intent. In response to detected functional impairment, the first motor of the pressure generation unit ceases to be controlled, and the second motor of the pressure generation unit of the second actuator unit is controlled to generate brake pressure. Detection of a braking intent and wheel-specific modulation of the brake pressure, continue to be carried out, using devices of the first actuator unit.

Abstract: A method for operating a braking device of a vehicle, including a main braking system, and a backup braking system. The braking device includes a main braking system control unit, and a backup braking system control unit. The method includes detecting an error of a brake function of the braking system, locating the error inside the braking device, classifying the error with regard to the corresponding brake function and the braking system, and transferring a brake function detected as erroneous for the main braking system to the backup braking system in the event that the error concerns solely the main braking system, so that the brake function may still be carried out with the aid of the backup braking system.

Abstract: A method for operating a pump motor of a control device of a braking system. The control device has the pump motor, a valve device having at least one electrically operable switching valve, a first electric supply connection connectable electrically to the pump motor and a second electric supply connection connectable electrically to the valve device, an electric setpoint operating current being predetermined for the pump motor, and the pump motor being connected electrically to the first supply connection, so that the setpoint operating current is provided at least partially through the first supply connection. It is provided to connect the pump motor electrically to the second supply connection, so that the setpoint operating current is provided at least partially through the second supply connection.

Abstract: A method is provided for limiting a load current in a supply line that supplies a first load with electrical current. The method includes: defining a first time interval and a second time interval, the first time interval beginning after a time of connection of the first load to the supply line, and the second time interval beginning later than the first time interval; limiting the load current within the first and second time interval to a first value; limiting the load current, at least at the end of the second time interval, to a second value, the second value being smaller than the first value.

Abstract: A method for checking a capacity of at least one supply line for an electrically operated assembly that is coupled electrically via the at least one supply line to an electrical system of an at least partially automated mobile platform. The method includes: ensuring a non-critical operating state of the mobile platform; determining an off-load terminal voltage at an input connection of the assembly, with zero-current supply line; applying a defined current to the supply line of the electrically operated assembly; determining an on-load terminal voltage at the input connection of the assembly, in doing so, the defined voltage being applied to the supply line of the electrically operated assembly; determining a differential voltage between the off-load terminal voltage and the on-load terminal voltage; comparing the differential voltage to a differential-voltage limit value to determine whether the capacity of the electric supply line is sufficient to operate the assembly.

Abstract: A method for determining an electrical variable of a component of part of a vehicle electrical system including at least one external current and an electrical impedance unit. A measuring unit is configured to generate a plurality of current and voltage values for each of at least two different operating points of the impedance unit. The method includes: providing the current values of the impedance unit at a first operating point and at least one second operating point; providing the voltage values of the impedance unit at a first operating point and at least one second operating point; corresponding current and voltage values being associated with one another; determining the at least one electrical variable of the component based on a parameter estimation method and an electrical model of the part of the vehicle electrical system and at least part of the corresponding current and voltage values.

Abstract: A method for operating a braking device of a vehicle, including a main braking system, and a backup braking system. The braking device includes a main braking system control unit, and a backup braking system control unit. The method includes detecting an error of a brake function of the braking system, locating the error inside the braking device, classifying the error with regard to the corresponding brake function and the braking system, and transferring a brake function detected as erroneous for the main braking system to the backup braking system in the event that the error concerns solely the main braking system, so that the brake function may still be carried out with the aid of the backup braking system.

Abstract: A method is provided for limiting a load current in a supply line that supplies a first load with electrical current. The method includes: defining a first time interval and a second time interval, the first time interval beginning after a time of connection of the first load to the supply line, and the second time interval beginning later than the first time interval; limiting the load current within the first and second time interval to a first value; limiting the load current, at least at the end of the second time interval, to a second value, the second value being smaller than the first value.

Abstract: A method is described for operating an electrical system, in particular, of a motor vehicle, which includes at least one electrical consumer, at least one energy source for electrical energy, and at least one control unit, the consumer being test activated by the control unit for the purpose of initializing a start of the system and a voltage level of an electrical voltage in the system being monitored and compared to a predefinable minimum value, and the activation being interrupted if the voltage level falls below the minimum value, and the consumer being subsequently test reactivated. It is provided that the number of the interruptions is counted and the consumer is deactivated at least for a predefinable period of time upon reaching a predefinable maximum number.

Abstract: A method for determining an electrical resistance of an electrical supply lead of an electrical system. The system is connected to a first and a second electrically conductive supply lead, which are electrically conductively connected on the current-source side. The system is configured to electrically connect an electrical load of the system selectably to the first or to the second supply lead. The method includes: configuring an electrical connection between the first supply lead and the load; configuring an electrical interruption between the second supply lead and electrical loads of the system; impressing a current in the first supply lead; determining a first voltage at the input of the first supply lead; determining a second voltage at the input of the second supply lead; determining a first resistance value of the first supply lead using the first and the second voltage and the impressed current.

Abstract: A method for controlling a power brake system, for a motor vehicle engaged in piloted driving, which includes two electrically controllable actuator units. The first actuator unit includes a braking-intent detection device, and a first pressure generation unit for generating a brake pressure in a brake circuit. The second actuator unit includes a second pressure generation unit redundant to the first pressure generation unit. A first electronic control device acquires signals of the braking-intent detection device and controls the actuator unit based on the detected braking intent. In response to detected functional impairment, the first motor of the pressure generation unit ceases to be controlled, and the second motor of the pressure generation unit of the second actuator unit is controlled to generate brake pressure. Detection of a braking intent and wheel-specific modulation of the brake pressure, continue to be carried out, using devices of the first actuator unit.

Abstract: A method for operating a pump motor of a control device of a braking system. The control device has the pump motor, a valve device having at least one electrically operable switching valve, a first electric supply connection connectable electrically to the pump motor and a second electric supply connection connectable electrically to the valve device, an electric setpoint operating current being predetermined for the pump motor, and the pump motor being connected electrically to the first supply connection, so that the setpoint operating current is provided at least partially through the first supply connection. It is provided to connect the pump motor electrically to the second supply connection, so that the setpoint operating current is provided at least partially through the second supply connection.

Abstract: A method for determining an electrical variable of a component of part of a vehicle electrical system including at least one external current and an electrical impedance unit. A measuring unit is configured to generate a plurality of current and voltage values for each of at least two different operating points of the impedance unit. The method includes: providing the current values of the impedance unit at a first operating point and at least one second operating point; providing the voltage values of the impedance unit at a first operating point and at least one second operating point; corresponding current and voltage values being associated with one another; determining the at least one electrical variable of the component based on a parameter estimation method and an electrical model of the part of the vehicle electrical system and at least part of the corresponding current and voltage values.

Abstract: A method for checking a capacity of at least one supply line for an electrically operated assembly that is coupled electrically via the at least one supply line to an electrical system of an at least partially automated mobile platform. The method includes: ensuring a non-critical operating state of the mobile platform; determining an off-load terminal voltage at an input connection of the assembly, with zero-current supply line; applying a defined current to the supply line of the electrically operated assembly; determining an on-load terminal voltage at the input connection of the assembly, in doing so, the defined voltage being applied to the supply line of the electrically operated assembly; determining a differential voltage between the off-load terminal voltage and the on-load terminal voltage; comparing the differential voltage to a differential-voltage limit value to determine whether the capacity of the electric supply line is sufficient to operate the assembly.

Abstract: A method is described for operating an electrical system, in particular, of a motor vehicle, which includes at least one electrical consumer, at least one energy source for electrical energy, and at least one control unit, the consumer being test activated by the control unit for the purpose of initializing a start of the system and a voltage level of an electrical voltage in the system being monitored and compared to a predefinable minimum value, and the activation being interrupted if the voltage level falls below the minimum value, and the consumer being subsequently test reactivated. It is provided that the number of the interruptions is counted and the consumer is deactivated at least for a predefinable period of time upon reaching a predefinable maximum number.

Abstract: An improved power supply unit for a vehicle electrical system of a motor vehicle, which has an a.c. generator, that provides a phase signal, having an excitation coil, a field regulator assigned to the excitation coil and a rectifier having rectifier elements for the rectification of the generator voltage supplied by the a.c. generator. The field regulator has a voltage detection range for the evaluation of the phase signal having a minimum value and a maximum value, the maximum value being adjusted to the nominal voltage of a power supply unit of the motor vehicle.

Abstract: A method for assigning addresses in a system having a first generator unit and at least one further generator unit positioned in parallel to the first generator unit. Each of the generator units has a control-signal input and a control-signal output. The control-signal input of each further generator unit is connected in each instance to the control-signal output of another of the generator units. Each of the further generator units receives an identification signal output at the control-signal output of a generator unit upstream of it, and assigns itself an individual address as a function of the respective identification signal received, the address depending on the length of the identification signal received.

Abstract: A device for detecting a change in a generator output signal of a vehicle generator includes a window comparator for comparing a signal amplitude of the generator output signal to at least one threshold value which limits a signal amplitude range, a detector for detecting a change in the generator output signal based on an output signal of the window comparator, a detection unit for detecting a signal amplitude difference between a maximum signal amplitude and a minimum signal amplitude of the generator output signal, and an adaptation unit for adapting the signal amplitude range of the window comparator, based on the signal amplitude difference, when there is the change in the generator output signal.

Abstract: A generator device with a generator regulator and a generator unit having a generator and a rectifier arrangement. The generator regulator has an operating voltage connection and a phase voltage connection. Furthermore, if during a control intervention of the phase voltage the DC voltage applied to the operating voltage connection exceeds a predefined limit for a predefined period of time, the generator regulator deactivates the control intervention of the phase voltage.

Abstract: An improved power supply unit for a vehicle electrical system of a motor vehicle, which has an a.c. generator, that provides a phase signal, having an excitation coil, a field regulator assigned to the excitation coil and a rectifier having rectifier elements for the rectification of the generator voltage supplied by the a.c. generator. The field regulator has a voltage recording range for the evaluation of the phase signal having a minimum value and a maximum value, the maximum value being adjusted to the nominal voltage of a power supply unit of the motor vehicle.