Disclosed is a motor control method for an electric-powered vehicle (1), which is designed to switch an output characteristic of an electric motor (5) for rotatably driving a driving wheel (16) of the vehicle (1), between a low-speed mode adaptable to a relatively low rotation speed operation region and a high-speed mode adaptable to a relatively high rotation speed operation region, on the basis of a given switching rotation speed (Nt) as a threshold. The motor control method comprises a vehicle-turning information acquisition step (S1, S2) of acquiring information about a turning movement of the vehicle (1), a vehicle-turning determination step (S5, S9, S14, S18) of determining whether the vehicle (1) is in a non-straight-ahead traveling state, based on the information acquired in the vchicle-turning information acquisition step, and a shift step (S6, S10, S15, S19) of, if the determination in the vehicle-turning determination step is made that the vehicle is in the non-straight-ahead traveling state, shifting the switching rotation speed (Nt) to a value different from that in a straight-ahead traveling state of the vehicle. The motor control method of the present invention can prevent a behavior of the vehicle (1) from becoming unstable when the output characteristic of the electric motor (5) for rotatably driving the driving wheel (16) is switched between the low-speed mode and the high-speed mode.
Motor control method for electric-powered vehicle and driving apparatus for electric-powered vehicle
Motorsteuerung für ein elektrisch angetriebenes Fahrzeug und Antriebsvorrichtung für ein elektrisch angetriebenes Fahrzeug
Procédé de commande de moteur pour véhicule électrique et appareil de commande pour véhicule électrique
13.12.2017
Patent
Elektronische Ressource
Englisch
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F16H Getriebe , GEARING |
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