While, from time (t3) when a battery state-of-charge (SOC) has become less than or equal to a setting value (SOCs), the duration time of this state (SOC < SOCs) is being measured, regeneration limit torque (Tm_Lim) is gradually decreased to zero until a running-out-of-electricity determination time (t6) when a predetermined time (TMs) elapses and regenerative braking torque (Tm) is restricted so as not to exceed the regeneration limit torque (Tm_Lim) during the period from the time (t3) to the time (t6), thereby gradually reducing the regenerative braking torque (Tm) to zero. By gradually reducing the regenerative braking torque (Tm) to zero during the period from the time (t3) to the time (t6), the regenerative braking torque (Tm) does not abruptly disappear at the moment of time (t6) when a battery is brought into the state of running out of electricity, so that it is possible to avoid a speed decreasing change causing a sense of discomfort due to the abrupt disappearance of the regenerative braking torque (Tm). The amount of the gradual decreasing of the regenerative braking torque (Tm) is covered by frictional braking torque (Tb), thereby keeping the combined braking torque (Tm + Tb) cons
VEHICLE REGENERATIVE BRAKING CONTROL DEVICE
STEUERUNGSVORRICHTUNG FÜR REGENERATIVE FAHRZEUGBREMSE
DISPOSITIF DE COMMANDE DE FREINAGE PAR RÉCUPÉRATION DE VÉHICULE
19.09.2018
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 |