MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE USING SAME
MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE USING SAME
- New search for: IMAMURA YOUSUKE
- New search for: MAEDA MASAHIRO
- New search for: SHIMADA KENICHI
- New search for: IMAMURA YOUSUKE
- New search for: MAEDA MASAHIRO
- New search for: SHIMADA KENICHI
[Problem] An object of the present invention is to provide a motor controlling apparatus that comprises a single current sensor and obtains a maximal duty range that current becomes detectable with realizing size reduction, weight saving and cost reduction and an electric power steering apparatus using the same. [Means for solving the problem] A motor controlling apparatus that calculates each phase duty command value for controlling a motor current by means of control calculation, forms PWM waveforms corresponding to each phase duty command value and drives the motor based on the PWM waveforms by an inverter, comprising: a duty shift function that uniformly either increases or decreases each phase duty command value with keeping differences in each phase duty command value; and a PWM output position changing function that decides output positions of each phase PWM signal, and wherein a single current detector is connected to power supply input side or power supply output side of the inverter, timing that a PWM signal of only one phase becomes ON state or PWM signals of two phases become ON state simultaneously is generated at fixed positions of PWM periods, and the motor current is detected.
Document information
MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE USING SAME
MOTORSTEUERUNGSVORRICHTUNG UND ELEKTRISCHE SERVOLENKVORRICHTUNG DAMIT
DISPOSITIF DE COMMANDE DE MOTEUR ET DISPOSITIF ÉLECTRIQUE DE DIRECTION ASSISTÉE L'UTILISANT
2019-10-23
Patent
Electronic Resource
English
| IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / 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 |
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