#H02P21/18

Rotary machine control apparatus

A control apparatus includes: a current detection unit detecting rotary machine current flowing to a rotary machine; a position estimation unit calculating an estimate value of a rotor position based …

DRIVE·Jun 9·1 min read

H02P21/18 MITSUBISHI ELECTRIC CORPORATION

METHODS AND SYSTEM FOR ELECTRIC MACHINE POSITION OFFSET ESTIMATION

Systems and methods for operating an electric drive system for an electric or hybrid vehicle is described. In one example, an angle error between an electric machine rotor reference position and an el…

DRIVE·Jul 17·1 min read

H02P21/18 Ford Global Technologies, LLC

POWER CONVERTER AND DRIVE CONTROLLER

A power conversion device includes a power converter to convert power generated by a power generator into power to be supplied to a load, a target torque calculator to calculate a target torque of the…

DRIVE·Nov 30·1 min read

H02P21/18 Mitsubishi Electric Corporation

SYSTEM AND METHOD FOR CONTROLLING ELECTRIC MOTORS TO FUNCTION AS A VIRTUAL ELECTRONIC LOCKING DIFFERENTIAL

A system includes a reference speed module and a motor control module. The reference speed module is configured to determine a reference speed range based on a speed of a left wheel of a pair of front…

DRIVE·Feb 23·1 min read

H02P21/18 GM Global Technology Operations LLC

MOTOR APPARATUS AND VEHICLE

A motor apparatus is provided. The motor apparatus includes a motor having a rotor and a stator, an inverter used to covert an input voltage into a three-phase alternating current (AC) voltage and pro…

DRIVE·Oct 13·1 min read

H02P21/18 NIDEC ELESYS CORPORATION

METHODS AND SYSTEMS FOR DETECTING A ROTOR POSITION AND ROTOR SPEED OF AN ALTERNATING CURRENT ELECTRICAL MACHINE

A method for determining rotor characteristic of an alternating current (AC) electrical machine includes obtaining a reference voltage signal, one or more phase currents, and rotor data. The method in…

DRIVE·Oct 28·1 min read

H02P21/18 BorgWarner Inc.

METHOD AND DEVICE FOR DETERMINING THE POSITION AND THE ROTATIONAL SPEED OF A ROTOR OF AN ELECTRIC MACHINE

The invention relates to a method for determining the position (O) and the rotational speed (n) of a rotor of an electrical machine during an active short circuit and a rotor-state determining device …

DRIVE·Aug 19·2 min read

H02P21/18 Robert Bosch GmbH

SENSORLESS POSITION DETECTION FOR ELECTRIC MOTOR

An apparatus includes an electric motor including a stator and a translator; a three-phase inverter electrically coupled to the electric motor; a power source electrically coupled to the three-phase i…

DRIVE·Jul 15·1 min read

H02P21/18 DRiV Automotive Inc.