The invention relates to a propulsion system (102, 202) for a heavy-duty vehicle (100, 200), such as a truck, a bus or a construction equipment vehicle. The propulsion system comprises electric machines (EMs), such as electric motors and generators, and a control arrangement (126, 226) comprising a processor (128, 228) and a memory (130, 230). Each of the EMs are either in an EM electrically connected state, in which power is transferred between a power source and the wheels, and an EM torque is applied to the vehicle's wheels, or in an EM electrically disconnected state, in which no power is transferred between the power source and the wheels. Further, each of the EMs is associated with EM power loss characteristics for the EM electrically connected state and the EM electrically disconnected state, respectively. The EM power loss characteristics for the EM electrically disconnected state is related to inertia and/or friction losses caused by the EM when no power is supplied thereto from the power source. The control arrangement is arranged to define a cost function which depends on EM states for the EMs, wherein each of the EM states comprises the EM electronically connected state or the EM electronically disconnected state, wherein the cost function further comprises a motion request associated with desired values of global forces, to minimize the cost function over a search space comprising the EM states such that minimizing EM states are determined, and to control the EMs in accordance with the minimizing EM states.
A PROPULSION SYSTEM FOR A HEAVY-DUTY VEHICLE, A HEAVY-DUTY VEHICLE AND A METHOD FOR CONTROLLING A PROPULSION SYSTEM
ANTRIEBSSYSTEM FÜR EIN SCHWERLASTFAHRZEUG, SCHWERLASTFAHRZEUG UND VERFAHREN ZUR STEUERUNG EINES ANTRIEBSSYSTEMS
SYSTÈME DE PROPULSION POUR UN VÉHICULE UTILITAIRE LOURD, VÉHICULE UTILITAIRE LOURD ET PROCÉDÉ DE COMMANDE D'UN SYSTÈME DE PROPULSION
2025-07-02
Patent
Electronic Resource
English
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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