PROBLEM TO BE SOLVED: To provide a drive device and an automobile, sufficiently satisfying requirement for high motor controllability.SOLUTION: The control of an inverter is executed by switching between first PWM control, in which a plurality of switching elements are switched by generation of a first PWM signal for the plurality of switching elements by comparison of a voltage command of each phase based on a motor torque command with a carrier wave voltage, and second PWM control, in which the plurality of switching elements are switched by generation of a second PWM signal for the plurality of switching elements, on the basis of a voltage modulation rate and a voltage phase based on the torque command, and the number of pulses of a unit period of a motor electric angle, with the reduced number of switching times of the plurality of switching elements in comparison with the first PWM control. When high controllability of the motor is required, as the inverter control, the execution of the second PWM control is limited, in comparison with a case when high controllability is not required.SELECTED DRAWING: Figure 4

    【課題】モータの高制御性の要求をより十分に満たす駆動装置及び自動車を提供する。【解決手段】インバータの制御として、モータのトルク指令に基づく各相の電圧指令と搬送波電圧との比較によって複数のスイッチング素子の第1PWM信号を生成して複数のスイッチング素子のスイッチングを行なう第1PWM制御と、トルク指令に基づく電圧の変調率および電圧位相とモータの電気角の単位周期のパルス数とに基づいて複数のスイッチング素子の第2PWM信号を生成して複数のスイッチング素子のスイッチングを行なう制御であって、第1PWM制御に比して複数のスイッチング素子のスイッチング回数を少なくする第2PWM制御とを切り替えて実行する。そして、モータの高制御性が要求されているときには、高制御性が要求されていないときに比して、インバータの制御として第2PWM制御の実行を制限する。【選択図】図4


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    Title :

    DRIVE DEVICE AND AUTOMOBILE


    Additional title:

    駆動装置および自動車


    Contributors:

    Publication date :

    2018-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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