Patent ID: 11971314
Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method for controlling an electric drive unit, the drive unit having a first temperature detection region with a first temperature and a second temperature detection region with a second temperature, the method comprising:
calculating a first temperature value of the first temperature detection region in a manner linearly dependent upon a first input value,
calculating a second temperature value of the second temperature detection region in a manner linearly dependent upon a second input value,
calculating a first coupling value in a manner non-linearly dependent upon at least the first temperature value,
according to the first and second input values and the first coupling value, calculating a first estimated temperature at the first temperature detection region and a second estimated temperature at the second temperature detection region,
then adjusting the first estimated temperature based on a deviation between the first temperature value and a first temperature measurement at the first temperature detection region; and
then controlling the electric drive unit based on the first and second estimated temperatures.