Abstract:
A method for recognizing the breakdown of an energy reserve device of at least two energy reserve devices of a device for protecting the occupants of a vehicle. The method includes: charging the at least two energy reserve devices to a test voltage level; ascertaining an ambient temperature of the at least two energy reserve devices; acquiring the (overall) capacitance of the at least two energy reserve devices; recognizing the breakdown of an energy reserve device as a function of a floating mean value, which is a function of the ascertained ambient temperature, for the (overall) capacitance and of the acquired (overall) capacitance; updating a floating mean value as a function of the ascertained ambient temperature and the acquired overall capacitance.
Abstract:
A control unit for activating a personal protection device of a vehicle. The control unit includes a compute module, which is in one-piece and which includes a first area including a permanently wired processing structure and a second area including a programmable processing structure, the compute module being designed to carry out a processing instruction for activating the personal protection device in at least the second area.
Abstract:
A control device for a vehicle and a reset method for such a control device. The control device includes a voltage supply and system components including a processing unit which, with the other system components, carries out at least one device function, and selectively switches off or resets assigned individual system components depending on the function and/or depending on the state via at least one selectively generated controller reset signal, the system components being supplied by at least two different internal system voltages. At least one monitoring function monitors the at least two internal system voltages. Different voltage-related reset signals are assigned to the monitored internal system voltages. As soon as the assigned monitored internal system voltage is recognized to be erroneous, the monitoring function selectively generates and outputs a voltage-related reset signal to at least one system component which is supplied with the internal system voltage recognized as erroneous.
Abstract:
An integrated regulator, in particular a voltage regulator, for a personal protection arrangement in a vehicle, includes a regulating element that converts an input signal into an output signal having a defined value, and a control application circuit that applies control to the regulating element to generate the output signal having the defined value. The control application circuit outputs the output signal via the regulating element with at least two different selectable values as a function of a specifying signal, such that for selection of the value of the output signal, a configuration circuit receives at least one configuration signal and, as a function of a configuration ascertained in the context of evaluation, selects one of at least two different specifying signals and applies it to the control application circuit to output the output signal having the selected value.
Abstract:
In a method for testing a supply circuit for an ignition circuit having at least one energy accumulator, a first conversion circuit that raises a supply voltage to a specified voltage level and charges the at least one energy accumulator, a controllable discharging circuit that discharges the at least one energy accumulator as needed, the energy accumulator is connected via a first coupling diode to the ignition circuit, and the supply voltage is applied via a second coupling diode to the at least one ignition circuit. Following the system start-up, a state of charge of the at least one energy accumulator is ascertained and compared to the at least one specified threshold value, and as a function of the comparison, a faultless supply circuit or at least one fault is recognized.
Abstract:
An energy supply unit for supplying a consumer, includes an energy store to supply electric when the consumer is decoupled from an energy supply network. The energy supply unit includes an energy supply controller having an input coupled to the energy store, via a diode, for receiving electric energy and an output for delivering electric energy, and a monitoring unit for outputting a monitoring signal, configured to set the monitoring signal to an active state when an output voltage between the output and a reference potential is lower/greater than a predefined activation threshold value, the monitoring unit configured, when an excessively low input voltage is identified between the input and reference potential of the controller, especially paired with an excessively low output voltage, the monitoring signal is switched to the inactive state when the input voltage is above a reset threshold and the output voltage is within the monitoring band.