Siemens Aktiengesellschaft

Gerhard Fischer

Wojciech Cianciara

Thomas Haug

Stephan Bolz

Roger Rouphael

Mark Elliott

Markus Amtmann

Maarten Holland

Ralph Mader

Michael St&uuml;rtz

An energy management system for a transport device, in particular for a motor vehicle running on fuel and electricity, includes an energy source, an intermediate energy store and an electric energy consumer, in particular an electric drive. Control and/or regulation of the provision of energy, which is dependent on information relating to future energy requirements and supplied by means of at least one part of the transport device, can be carried out by the energy management system by means of the intermediate energy store and/or the energy requirements.

System and method for predictive management of energy supply to a transport device

After the start of an internal combustion engine, a check is made to see whether a positive change in a measurement signal is established. A positive change is established if the measurement signal lies below a predetermined threshold value when the internal combustion engine is started. A fault entry is made if, within a predetermined time period, the positive change in the measurement signal, expressed as the difference between the measurement signal when the internal combustion engine is started and a present value of the measurement signal when the time period has elapsed, does not reach an expected value.

Method for checking analog sensors

The total ignition angle ZW(z) of each cylinder z is composed of cylinder-selective values basic ignition angle GZ(z) &lcub;determined by engine speed n and load L&rcub;, knock adjustment angle KNK(z), in addition to a first adaptation value AD,(z) and a second adaptation value AD,common to all cylinders. AD,(z) is increased when KNK(z) is greater than a threshold DEC and is reduced when KNK(z) is lower than a threshold INC. The second adaptation value AD,is formed as a function of the average value {overscore (AD,+L )} of the adaptation values of all cylinders.

Method for the cylinder-selective knock control of an internal combustion engine

A method for monitoring the operation of sensors in an internal combustion engine includes providing reference values from output signals from a sensor. A sliding average (comparison value) is calculated from a relatively large number of reference values. The operation of the sensor is diagnosed as a function of the amplitude distribution of the reference values about the comparison value. If a malfunction is found, a fault message is transmitted to the driver and reversionary running of the internal combustion engine is started. An electric controller operating in accordance with the sensor is also provided.

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Erlangen, Germany

Gerhard Fischer