| 摘要 |
The invention relates to a method for controlling an electric variable transmission, comprising the following steps: a first target value (Tit) and a second target value (Tot) are predefined for a first (Ti) and second torque (To); actual values for the angular speed of the rotor (omega1) and inter-rotor (omega2) are detected; at least one actual value of the temperature of the rotor or stator is detected; a loss-minimizing first (lambdaim) and second (lambdaom) target flux value is calculated from the target values for the first (Tit) and second torque (Tot), in addition to the actual values for the angular speed of the rotor (omega1) and inter-rotor (omega2) and the actual value(s) of the temperature; and the rotor current (Ir) and the stator current (Is) are calculated using a field-oriented current control method, the loss-minimizing first and second target flux values (lambdaim,lambdaim) being used for this purpose. A controller for controlling an electric variable transmission contains: inputs for torque target values (Tit), (Tot), angular speeds (omega1), (omega2) and at least one temperature actual value; a calculation block for calculating a minimum-loss first target flux (lambdaim) and second target flux (lambdaom) from the target values for the first (Tit) and second torque (Tot), in addition to the actual values for the angular speed of the rotor (omega1) and inter-rotor (omega2) and a temperature actual value; and a field-oriented current controller for calculating the rotor current (Ir) and the stator current (Is) from at least the minimum-loss first target flux (lambdaim) and the minimum-loss second target flux (lambdaom).
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