The invention relates to a control method for a hybrid drive in a vehicle (200) comprising an internal combustion engine (2) and an electric motor (23) for determining a torque distribution between the internal combustion engine (2) and the electric motor (23). Operational state information (FW, SB), charge state information (SOC, SOCref) of a traction battery (21), and a difference (δ) between an emission upper limit (EMG) and a cumulated actual emission variable (EMK) are taken into consideration in a cost function (J), and the operating state of the internal combustion engine (2), and thus the internal combustion engine drive torque (MVKM), is influenced by means of a reference variable (x(t)) such that at least two actual emission variables (EM1, EM2) are set in such a manner that in an operating period with a combination of different arbitrary operating states of the hybrid drive, and thus of the internal combustion engine (2), set in a random order, the corresponding cumulated actual emission variables (EMK) do not exceed emission upper limits (EMG) for said operating period. The cost function (J) is minimized in that the reference variable (x(t)) is selected from Pareto-optimal alternatives using an indifference curve (I) determined from a differential function (δ(t)), and the internal combustion engine torque component (MVKM) can thus be optimized with respect to emission.
STEUERUNGSVERFAHREN FÜR EINEN HYBRIDANTRIEB, STEUERGERÄT UND HYBRIDANTRIEB
CONTROL METHOD FOR A HYBRID DRIVE, CONTROLLER, AND HYBRID DRIVE
PROCÉDÉ DE COMMANDE D'UN ENTRAÎNEMENT HYBRIDE, APPAREIL DE COMMANDE ET ENTRAÎNEMENT HYBRIDE
2022-10-26
Patent
Electronic Resource
German
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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