Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 12,351

Document Document Title
WO/2018/012420A1
An ECU (motor control device) (101) is provided with multiple motor drive circuits (701, 702) and with multiple microcomputers (401, 402). The microcomputers (401, 402) operate on a microcomputer power supply generated by a power supply ...  
WO/2018/012419A1
After microcomputers (401, 402) are started, a ready signal transmission unit (622) of a second microcomputer (402) that is a "synchronization signal reception side microcomputer" transmits a ready signal indicating the completion of syn...  
WO/2018/012592A1
A rotary electric machine device equipped with a rotary electric machine (10) and full-bridge inverters (30, 40). The full-bridge inverters are equipped with first high-side switches (SUp - SWp), first low-side switches (SUn - SWn), seco...  
WO/2018/012417A1
A synchronization signal generating unit (411) of a transmission-side microcontroller (401) generates a synchronization signal which is synchronized with the drive timing of the local microcomputer and which allows synchronizing the driv...  
WO/2018/007818A2
An electric motor may comprise a rotor and a stator comprising rotor and stator teeth, respectively. A non-uniform angular spacing or grouping of rotor teeth may facilitate desired rotational speeds of the rotor.  
WO/2018/008057A1
Provided is a pole-number-changing rotary electric machine which has excellent torque-current characteristics both when a large number of poles are driven and when a small number of poles are driven, without using a winding changeover me...  
WO/2018/009275A1
Described is a vector control system for a vapor compression circuit. The vector control system may monitor the vapor compression circuit and adjust the speed of one or more motors to increase efficiency by taking into account the torque...  
WO/2018/003462A1
There is provided a drive control device of an electric motor with which it is possible to reduce the number of terminals and the number of wires. The present invention is provided with: a drive circuit 3 having an inverter circuit 5 and...  
WO/2018/004037A2
The present invention relates to the control of an operation of a voice coil motor (hereinafter referred to as "VCM") for moving a lens of a camera module and, particularly, to a method for controlling an operation of a VCM, which can re...  
WO/2018/005822A1
Embodiments of the subject invention are directed to a homopolar motor and its mechanical coupling with a flywheel rotor. The homopolar motor includes a rotor and no additional bearings, shafts, gears, pulleys, etc., are required to coup...  
WO/2018/003075A1
A motor control device 1 is provided with: a substrate 10; a substrate 20, which has an electronic component 116 including a switching element 117 for power conversion, and which is disposed along a surface P1 intersecting the substrate ...  
WO/2017/220885A1
The invention relates to a motor vehicle starter (10) comprising: a movable pinion which can move along an axis X1 between a rest position and an active position; an electric motor (30) which can rotate the pinion about axis X1; a lever ...  
WO/2017/220234A1
The present invention provides control for synchronous machines in order to achieve an approximately constant torque irrespective of the load angle. The induced voltage of the synchronous machine rotating with a zero-current of the stato...  
WO/2017/216523A1
Apparatus and methods of operating an electric motor are provided, comprising energising a plurality of stator coils in sequence to rotate a rotor. Each said coil is energised with a repeating pulse sequence comprising at least a first p...  
WO/2017/216259A1
A method for controlling an electric power system and an electric power system.The electric power system comprises a prime mover operated at least at a minimum and at a maximum rotational speed, a three phase (L1, L2, L3) AC generator (5...  
WO/2017/216524A1
Apparatus and methods are provided for operating an electric motor, comprising selectively energising the coils of a stator having a plurality of stator teeth, each stator tooth having a said coil mounted thereon. The stator coils of a s...  
WO/2017/216959A1
A motor system (101) relating to the present invention is equipped with: a motor wherein a first wire-wound section (6) and a second wire-wound section (7) are provided, and the number of the wire winding turns of the second wire-wound s...  
WO/2017/217102A1
The SR motor control system 10 which performs driving control of an SR motor 1 has power modules 11, 12, a switch unit 31, and a boost capacitor 38. The switch unit 31 is disposed on a power supply line 30, and comprises FETs 32, 33 for ...  
WO/2017/211838A1
Brushless starter generator (1) comprising a main electrical machine (10) winding and an exciter (20) comprising a stator (21) that comprises a stator winding with a direct current (DC) and a stator winding with an alternating current (A...  
WO/2017/213073A1
This power output device is provided with: a field winding; a motor having a plurality of star-connected motor windings which are composed of three or more phases; a capacitor; an inverter circuit which is configured to perform power con...  
WO/2017/212911A1
[Problem] To provide a motor control device, an electric power steering device equipped with same and a vehicle, the motor control device being capable of size and cost reduction when the driving of a motor having two-system windings is ...  
WO/2017/210435A1
A bridge converter for a multi-phase electrical machine has a number of bridge cells connected in series. Each bridge cell has a controller. The bridge converter includes a sensor operative to provide a commutation signal to at least one...  
WO/2017/205342A1
Improved apparatuses and methods of returning magnetic energy of a motor to the motor system. Improved battery systems and configurations are disclosed to enhance recovery of magnetic energy of a motor, to enhance motor efficiency. A pow...  
WO/2017/203858A1
Controllability of a linear motor or a compressor is improved. Provided is a linear motor system in which an armature having a magnetic pole and a winding wire and a mover having a permanent magnet are relatively movable, the linear moto...  
WO/2017/204099A1
Provided is an electric linear motion actuator that enables space saving and at the same time, enables simplification of a support structure against a thrust force, and enables a reduction in cost. This electric linear motion actuator (1...  
WO/2017/202530A1
The invention relates to a method for improving a starting process of an internal combustion engine (300) by means of a belt-driven starter generator (100), which has a stator winding (11) and a rotor winding (12), wherein the starter ge...  
WO/2017/199304A1
Provided is a motor drive device that comprises: an inverter unit which outputs AC power to a motor and which has a plurality of inverter modules 25-1 to 25-3, each of the plurality of inverter modules 25-1 to 25-3 having a plurality of ...  
WO/2017/191298A1
A generator or motor system for converting mechanical power into electrical power or vice versa, comprising: a switched reluctance machine having a rotor and a stator with a number of phase windings (A, B, C), the phase windings being pa...  
WO/2017/191445A1
A method and a device for engendering rotation of a rotor relative to a stator. Stator teeth may comprise a mutually coupled coil winding pair, and a driver circuit may drive current through a first coil winding of the mutually coupled c...  
WO/2017/186319A1
The invention relates to a method for switching off a polyphase electrical machine (110) in a motor vehicle, wherein the polyphase electrical machine (110) has a rotor with a rotor winding (101) and a stator with a polyphase stator windi...  
WO/2017/187536A1
An electric motor drive device according to the present invention is an electric motor drive device that is used for driving an electric motor, said electric motor being used in a compressor that compresses a coolant, wherein the electri...  
WO/2017/187542A1
The present invention is provided with: the same number of inverter modules 6-8 as the number of phases of an electric motor; and an inverter control unit 4 which generates pulse width modulation (PWM) signals for driving the inverter mo...  
WO/2017/187576A1
This motor drive device is provided with: the same number of inverter modules as the number of phases of a motor 15; and a control unit 5 which generates pulse width modulation (PWM) signals for driving the inverter modules 2, 3, 4 by wa...  
WO/2017/187578A1
This motor drive device, which converts AC power into DC power and drives a motor, is provided with a printed circuit board 52 provided with: a first board surface 52a and a second board surface 52b; inverter modules 5, 6 which are provi...  
WO/2017/186392A1
Electric machine (100) comprising at least one first winding (110), a first inverter (120) connected to said at least one first winding (110), a second winding (160), and a second inverter (170) connected to the second winding (160). An ...  
WO/2017/183735A1
A switched reluctance motor device using constant current control with which circuit loss of power is reduced and efficiency is improved, and regeneration (power generation) until stopping of the rotation of the rotor is possible. This m...  
WO/2017/179156A1
A controller 23 outputs a reset signal for resetting a relay 62. Upon receiving a reset command from the controller 23, the relay 62 opens power supply lines 67a, 67b. As a result, the supply of power to a linear scale 34 is interrupted,...  
WO/2017/180850A1
A motor/generator/transmission system includes: an axle; a stator ring having a plurality of stator coils disposed around the periphery of the stator ring, wherein each phase of the plurality of stator coils includes a respective set of ...  
WO/2017/174957A3
Methods and control apparatus for operating a three-phase electric motor are described, in which the motor windings are switched between Star and Delta connections depending on torque requirements, and in which the motor windings are swi...  
WO/2017/175328A1
This motor drive device is provided with: a converter circuit which boosts an alternating-current voltage between a first terminal and a second terminal of an alternating-current power supply and outputs the alternating-current voltage t...  
WO/2017/175567A1
This motor control device is provided with: a speed control unit for calculating a current command via an integration operation using an integral value with respect to the difference between the moving speed of a target object that is mo...  
WO/2017/174957A2
Methods and control apparatus for operating a three-phase electric motor are described, in which the motor windings are switched between Star and Delta connections depending on torque requirements, and in which the motor windings are swi...  
WO/2017/168139A1
An electrical sub-assembly comprises a stator having a plurality of coils and a cooling means attached to the stator. The electrical sub-assembly further comprises a plurality of pairs of diodes attached to the cooling means, each pair o...  
WO/2017/171816A1
Various embodiments of the present disclosure are directed towards free-piston combustion engines. As described herein, a method and system are provided for displacing a free-piston assembly to achieve a desired engine performance by rep...  
WO/2017/163304A1
An electric motor (100) has: a rotor (1); a stator (3) having a winding wire (2); a driving unit (4); a signal line (10); a control unit (51); and a storage unit (52). Through the signal line (10), a first signal is transmitted to the co...  
WO/2017/158861A1
This electronic control device is provided with first and second system inverter circuits which drive a multi-phase motor having first and second winding pairs by upper arm switching elements and lower arm switching elements that are sel...  
WO/2017/159210A1
The non-contact power supply device (60) is equipped with: a first inverter circuit (63); a linear coil (65) for sending alternating-current power output by a first inverter circuit (63) to a drive device (50) in a non-contact manner; a ...  
WO/2017/159160A1
The present invention makes it possible to detect an abnormality between redundant systems involving a short circuit between the motors of redundant systems. This motor actuator is provided with: a first inverter circuit that controls th...  
WO/2017/159277A1
A control system according to the present invention is provided with a plurality of control devices (11, 21). Each of the plurality of control devices (11, 21) is provided with an initial checking unit that performs initial checking befo...  
WO/2017/159091A1
Provided is a motor control apparatus. In this motor control apparatus, a first switching circuit group (41) and a second switching circuit (42) respectively provided between first and second microcomputers (21 and 22) and first and seco...  

Matches 1 - 50 out of 12,351