Robert Boschgmbh

Joerg Kieser

Alexander Maass

Matthias Kuentzle

Alexander Roesch

Albert Bardoll

Danny Mueller

The invention relates to a method for regulating a hybrid drive of a hybrid electric motor vehicle which has an electric energy store (HV), said method having the following steps: determining (S) criteria for engaging the electric drive (EM; EM, EM) and/or the internal combustion engine (VM) using an adjustable drive mode, wherein a part of a battery capacity of the electric energy store (HV) is reserved using a variable setting; and regulating (S) the engagement of the electric drive (EM; EM, EM) and/or the internal combustion engine (VM) of the hybrid electric motor vehicle using the determined criteria and the variable setting.

Method and regulating device for regulating a hybrid drive of a hybrid electric motor vehicle

A method for verifying a drive torque applied by an electric machine in a hybrid drive of a motor vehicle, the motor vehicle being propelled by the electric machine and/or an internal combustion engine, and it being checked if the drive torque applied by the electric machine is determined accurately. In order to ensure that the operating strategy is correctly implemented and a shift in load level in the power train functions reliably during operation of the motor vehicle, the drive torque applied by the electric machine is evaluated with regard to its accuracy, using a drag torque generated by the combustion engine during an overrun fuel cut off.

Method and device for verifying a drive torque applied by an electric machine in a hybrid drive of a motor vehicle

In a method for diagnosing an operating status of a drive device in a drive system of a motor vehicle having at least two drive devices configured as an electric machine and an internal combustion engine, and having at least one separating clutch which couples the drive devices in an adjustable way, setpoint rotational speeds of the drive devices are set to predetermined values and the operating status is determined from the resulting actual rotational speed of the one drive device.

Method for diagnosing an operating status of a drive device, and diagnostic device and drive system

A device and a method are provided for diagnosing a technical apparatus which is particularly developed as an internal combustion engine. When specified states of the technical apparatus are present, the means of diagnosis are activated, and when at least one of the specified technical states is no longer present, the means of diagnosis are deactivated. Upon the deactivation, information is stored that identifies which technical state is no longer present.

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Bietigheim-Bissingen, Germany

Joerg Kieser