An ECU 40 calculates the thermal margins Mg_1, Mg_2, Mg_3, Mg_4 of in-wheel motors 20_1, 20_2, 20_3, 20_4 on the basis of the thermal capacities C_1, C_2, C_3, C_4 of the in-wheel motors 20_1, 20_2, 20_3, 20_4, the allowable limit temperatures Tmp_max_1 - Tmp_max_4, and the motor temperatures Tmp_1, Tmp_2, Tmp_3, and Tmp_4 (steps S11 - S12). Next, the ECU 40 distributes the total requested torque T_total between the requested torques T_1 - T_4 for each wheel using the percentages of the thermal margins Mg_1 - Mg_4 (S13). The ECU 40 controls the operation of an inverter 25 such that the in-wheel motors 20_1 - 20_4 generate the requested torques T_1 - T_4 for the wheels. Thus, the four in-wheel motors 20 generate uniform amounts of heat.


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    Title :

    VEHICLE BRAKING/DRIVING FORCE CONTROL DEVICE


    Additional title:

    BREMS-/ANTRIEBSKRAFTSTEUERVORRICHTUNG FÜR EIN FAHRZEUG
    DISPOSITIF DE COMMANDE DE FORCE DE FREINAGE/PROPULSION DE VÉHICULE


    Contributors:

    Publication date :

    2015-09-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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 / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / 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



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