About 56 results
https://drivepatents.com/patents/953412 · 17 Feb 2016
A method is described for the diagnosis of the offset of the resolver of an electric machine, comprising acquiring a predetermined offset of a resolver associated with the electric machine; in a first transient, supplying an excitation current to the phase...
https://drivepatents.com/patents/946366 · 10 Feb 2016
The movement speed v of a moving body having driving wheels driven by a motor, the rotational speed É of the drive wheels of the moving body, and the actual torque value Tm generated by the motor are acquired. Subsequently, a slip rate estimation part (74...
https://drivepatents.com/patents/946350 · 10 Feb 2016
The movement speed v of a moving body having driving wheels driven by a motor, the rotational speed ω of the drive wheels of the moving body, and the actual torque value Tm generated by the motor are acquired. Subsequently, a limiting part (741) calculate...
https://drivepatents.com/patents/954542 · 6 Jan 2016
A motor control device is provided with: current command value calculating means which, based on a torque command value input from the outside and the rotation speed of a motor, calculates a basic current command value; first compensation means which compe...
https://drivepatents.com/patents/954536 · 6 Jan 2016
An inverter device for controlling a permanent magnet motor includes: a voltage vector calculation unit that outputs a voltage command; a stabilizing compensation calculation unit that calculates a correction amount for reducing a current control gain at a...
https://drivepatents.com/patents/948102 · 2 Dec 2015
An induction motor control apparatus controls an induction motor connected to drive wheels by setting a motor torque command value on the basis of vehicle information. The induction motor control apparatus calculates a first torque current command value an...
https://drivepatents.com/patents/956039 · 4 Nov 2015
In a motor control apparatus that calculates a command value of an AC voltage outputted from an inverter on the basis of a target motor torque of the AC induction motor and controls the inverter on the basis of the AC voltage, the target motor torque of th...
https://drivepatents.com/patents/949053 · 9 Sep 2015
A motor control device includes a motor drive circuit and a microcomputer that controls the drive circuit. The microcomputer generates a control signal on the basis of duty command values Du, Dv, and Dw to control the drive circuit. The microcomputer inclu...
https://drivepatents.com/patents/959427 · 1 Jul 2015
A control method for a synchronous generator system (100) is disclosed including performing a first parametric optimization (206) to determine a desired stator current angle (±) assuming fixed stator current magnitude (|i s |) and fixed field current magn...
https://drivepatents.com/patents/960998 · 6 May 2015
An electronic control device (10) includes a map that defines the relationship of a battery voltage (Vb), a motor rotation speed (Ée), and a torque value (T) of a motor (1) with each of the d-axis current command value (Id*) and q-axis current command val...