Method and device for operating a drive system for a motor vehicle

A device for operating a drive system having at least one drive engine for a motor vehicle, comprising:

• a monitoring arrangement configured to perform the following:
• monitoring, via a processor and a sensor system, an acceleration of the motor vehicle;
• performing, via the processor, an alternative monitoring of another vehicle parameter by changing over to the alternative monitoring when the monitoring of the acceleration can no longer be performed reliably;]
• ascertaining, via the processor, [a maximum permissible rotational speed as a function of a rotational speed specification specified by a driver's request;
• and
• limiting, in the alternative monitoring, an engine rotational speed to the maximum permissible engine rotational speed;
• wherein a real driving acceleration is compared to a rotational acceleration, which is determined from measured rotational speeds, and
• wherein monitoring of the acceleration cannot be performed reliably when there is an error in the sensor system or acceleration is outside an operating range in which the acceleration cannot be reliably monitored.

A drive system, comprising:

• at least one drive engine;
• and
• a device for operating the drive system having the at least one drive engine, including:
• a monitoring arrangement configured to perform the following:
• monitoring, via a processor and a sensor system, an acceleration of the motor vehicle;
• performing, via the processor, an alternative monitoring of another vehicle parameter by changing over to the alternative monitoring when the monitoring of the acceleration can no longer be performed reliably;]
• ascertaining, via the processor, [a maximum permissible rotational speed as a function of a rotational speed specification specified by a driver's request;
• and
• limiting, in the alternative monitoring, an engine rotational speed to the maximum permissible engine rotational speed;
• wherein a real driving acceleration is compared to a rotational acceleration, which is determined from measured rotational speeds, and
• wherein monitoring of the acceleration cannot be performed reliably when there is an error in the sensor system or acceleration is outside an operating range in which the acceleration cannot be reliably monitored.

A non-transitory machine-readable storage medium having a computer program, which is executable by a processor, comprising:

• a program code arrangement having program code for operating a drive system having at least one drive engine for a motor vehicle, by performing the following:
• monitoring, via the processor and a sensor system, an acceleration of the motor vehicle;
• performing, via the processor, an alternative monitoring of another vehicle parameter by changing over to the alternative monitoring when the monitoring of the acceleration can no longer be performed reliably;]
• ascertaining, via the processor, [a maximum permissible rotational speed as a function of a rotational speed specification specified by a driver's request;
• and
• limiting, in the alternative monitoring, an engine rotational speed to the maximum permissible engine rotational speed;
• wherein a real driving acceleration is compared to a rotational acceleration, which is determined from measured rotational speeds, and
• wherein monitoring of the acceleration cannot be performed reliably when there is an error in the sensor system or acceleration is outside an operating range in which the acceleration cannot be reliably monitored.