US Patent No. 9,102,332

METHOD AND DEVICE FOR OPERATING A HYBRID DRIVE SYSTEM


Patent No. 9,102,332
Issue Date August 11, 2015
Title Method And Device For Operating A Hybrid Drive System
Inventorship Rocco Gonzalez Vaz, Stuttgart (DE)
Klaus Schwarze, Duderstadt (DE)
Assignee ROBERT BOSCH GMBH, Stuttgart (DE)

Claim of US Patent No. 9,102,332

1. A method for operating a hybrid drive system having multiple drive units, each drive unit having a drive motor and a motor
control unit, comprising:
activating at least one of the motor control units in order to request a partial drive torque from at least one of the drive
units according to a drive strategy;

executing by at least one of the motor control units an adaptation function when a predefined condition is present for the
adaptation function;

determining a frequency of an execution of the adaptation function; and
determining whether the determined frequency of the execution of the adaptation function falls below a predefined frequency
threshold value,

wherein the drive strategy is selected as a function of whether the frequency of the execution of the adaptation function
in the at least one motor control unit falls below the predefined frequency threshold value, and

wherein the drive strategy is selected as a function of the determined frequency of the execution of the adaptation function
in the at least one motor control unit.