Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 13,676

Document Document Title
WO/2021/008754A1
The invention relates to a lift system (1), comprising: at least one lane (2VL, 2VR, 2H), at least one lift car (5), guide rails (22V, 22B, 22H) for guiding the lift car (5) along the lane; a drive pinion brake (9) which is designed to b...  
WO/2021/008727A2
The invention relates to a method and a system for operating a system comprising an energy storage device and a resistor. According to said method, in order to discharge the energy storage device, an electric power (P) which is constant ...  
WO/2020/249456A1
Provided is a swing door operator (110) for moving a door leaf (120) between a first position and a second position. The swing door operator (110) is arranged to operate in a powered and a powerless mode and comprises a permanent magnet ...  
WO/2020/251838A1
Apparatus and method for motor braking using selectively connectable resistance. The method includes controlling, using a motor controller of the power tool, a power switching network to drive a motor of the power tool in response to act...  
WO/2020/237341A1
The present invention relates to a method and system for identifying failure in a compressor (4) of a cooling system employing an implementation of at least a failure identification logic and a braking logic, based on monitoring of at le...  
WO/2020/204034A1
Provided is an overload protection device that can control overload of a motor by means of more accurate torque values. An overload protection device that comprises a current measurement means that sequentially measures the current flo...  
WO/2020/201113A1
An automatic door operator is disclosed, including a main control circuit, an actuating unit configured to output torque, and a transmission device. The main control circuit controls operation of the actuating unit to drive a movement of...  
WO/2020/201169A1
A description is given of a safe torque off device (15) for interrupting the generation of torque by a lift installation (1) drive machine (9) supplied by a power supply device (13), which may for example be part of an inverter device (1...  
WO/2020/204638A1
A motor control system comprises: a motor comprising motor windings; and electric control units connected with the motor, each of the electric control units comprising an inverter. One of the electric control units comprises: a direct cu...  
WO/2020/204636A1
A motor control system shorts motor windings of a motor by using junction gate field-effect transistors (JFETs) controlled bipolar junction transistors (BJTs), solid state relays (SSRs) controlled BJTs, and depletion mode metal-oxide-sem...  
WO/2020/191996A1
The present invention relates to the technical field of motor driving, and provides a motor driving circuit and system. The motor driving circuit comprises a forward rotation driving port, a reverse rotation driving port, and first to fo...  
WO/2020/195797A1
This control device is for controlling the operation of an electric motor configured so that a rotational shaft thereof can be rotated by an external force. The control device is characterized in that: when it is detected that a voltage ...  
WO/2020/187346A1
The invention relates to a power supply system for at least one system for transporting and/or machining workpieces (9), having a plurality of electric drive units (264, 297, 490). The supply grid (610, 620) of the drive units (264, 297,...  
WO/2020/182273A1
A trigger apparatus for a powered device, such as a power tool is disclosed. The powered device comprises a trigger operable by a user to move from a first position to at least one second position so as to control an operation of the pow...  
WO/2020/177823A1
A linear electric actuator system, preferably for patient lifters, comprising at least one linear electric actuator and a controller having a power limiting circuit for limiting the power to the at least one linear electric actuator. The...  
WO/2020/160841A1
The invention relates to a drive system comprising an inverter and electric motor and a method for operating a drive system, wherein the electric motor is supplied from the AC-voltage-side connection of the inverter, wherein a first seri...  
WO/2020/158434A1
A shift range control device (40) switches a shift range by controlling driving of a motor (10). An angle calculation unit (51) calculates a motor angle on the basis of a signal from a rotational angle sensor (13) that detects a rotation...  
WO/2020/158458A1
This shift range controller (40) switches the shift range by controlling driving of a motor (10) which comprises a rotor (105) that is rotated by energizing a motor winding (11). An angle calculation unit (51) calculates the motor angle ...  
WO/2020/151914A1
The invention relates to a drive system and method for operating a drive system, comprising an electromagnetically actuatable brake, an electric motor (M) and an electronic circuit, wherein the brake has a coil (L) that can be supplied w...  
WO/2020/147742A1
A linear motor drive chip braking method and apparatus, the method comprising: when the value of a first enabling signal is a first preset value and the time for which a counter-electromotive force is not over zero is shorter than or equ...  
WO/2020/092400A3
An auto-balance hill-hold apparatus and method for arresting unintentional roll after coming to a stop on a hill or slope in vehicles powered by magnetic synchronous motors by automatically determining and rapidly applying the appropriat...  
WO/2020/139791A1
A regenerative braking energy dissipater system which is adapted to dissipate energy from a regenerative brake in the case when the battery cannot accept further energy. The system may switch the energy flow from the battery to a dissipa...  
WO/2020/128029A1
The invention relates to a system (1) for controlling a voltage converter comprising a plurality of top side switches forming a top set and a plurality of bottom side switches forming a bottom set, the control system (1) comprising: - a ...  
WO/2020/131615A1
A self-powered motor braking mechanism (24) includes a dedicated power source (26) sized for braking the respective motor (14) and a dedicated braking circuitry (50) configured to provide hybrid braking of the motor to a targeted stop. T...  
WO/2020/126794A1
The invention relates to a method for operating switching elements (20,22,24,26,28,30) of an inverter (16,18) of a vehicle (10) driven by way of a three-phase synchronous machine (12,14), in which the inverter (16,18) has a series circui...  
WO/2020/119335A1
The present invention provides a wireless control motor start and stop system, comprising a motor, an alternating current contactor S3, a relay K1, a switch S1, a switch S2, a relay K2, a relay K3 and a control module, the control module...  
WO/2020/120233A1
The invention relates to a motor control device (3) for a motor unit (2) comprising: a control unit (4); a safety stage (S) for setting a safety state (STATE1, STATE2) of the motor unit (2); a driver stage (5); and a power bridge circuit...  
WO/2020/115630A1
DAHLANDER electromotor startup module automatically (after modifying the factors that cause the DAHLANDER electromotor to stop) used to launch and control the DAHLANDER electromotor in the field of industrial electricity. This module is ...  
WO/2020/110652A1
An electromagnetic brake control device which controls a non-excitation operation type electromagnetic brake comprising: an output terminal for connecting the electromagnetic brake; and, a brake control unit which outputs a brake control...  
WO/2020/098994A1
The invention relates to a motor control device (1) for a three-phase brushless DC motor (2). The motor control device (1) comprises a converter (3), which has an electric half-bridge (3.1, 3.2, 3.3) with two electronic switches (H1, H2,...  
WO/2020/092400A2
An auto-balance hill-hold apparatus and method for arresting unintentional roll after coming to a stop on a hill or slope in vehicles powered by magnetic synchronous motors by automatically determining and rapidly applying the appropriat...  
WO/2020/079132A1
The invention relates to a switching apparatus (10) for controlling the supply of power to an electrical load (40). In order to be able to ensure reliable switching behaviour even in the event of loss of supply voltage (UB) for the switc...  
WO/2020/080024A1
A power conversion device for converting electrical power from a DC power supply (30) and feeding the converted electrical power to a dynamo electrical machine (40), and driving the dynamo electrical machine, wherein the power conversion...  
WO/2020/078701A1
The invention relates to a brushed DC motor for driving a compressor, in particular compressed-air generation with a compressor and a brushed DC motor, preferably for a pneumatic spring system, a brake system or similar compressed-air co...  
WO/2020/074116A1
Method for monitoring the operation of an electric motor, and lifting mechanism, wherein the motor current is detected, wherein the electric motor has a, in particular electromagnetically operable, brake, in particular a holding brake, w...  
WO/2020/069737A1
The invention relates to a brake system (1) for a rail vehicle (40). The rail vehicle (40) comprises a plurality N of wheelsets (10), each wheelset (10) comprising a first wheel (11) and a second wheel (12) which are connected to a wheel...  
WO/2020/069766A1
The invention relates to a wheelset (1) for a standard-gauge railway vehicle, comprising a first wheel (1) and a second wheel (12) connected thereto by means of a wheelset shaft (13). According to the invention, at least one recuperative...  
WO/2020/064098A1
In order to achieve the energy efficiency class IE4 defined in the IEC standard 60034, it is necessary to operate permanently excited synchronous machines directly from the power supply system. Since this is not readily possible, soft st...  
WO/2020/064099A1
In order to achieve the energy efficiency class IE4 defined in IEC standard 60034, it is necessary to operate permanently excited synchronous machines directly from the mains. Since this is not readily possible, soft-starting devices com...  
WO/2020/064422A1
The invention relates to a belt conveyor device (1) and to a method for stopping a belt conveyor device (1) in a controlled manner. In particular for directly driven belt conveyor devices (1), an event (E) such as a power failure can lea...  
WO/2020/058445A1
The invention relates to a control device (2) for an inverter (1) which comprises three half-bridges (9u, 9v, 9w) each having a first power switching element (11u, 11v, 11w) connected to a first DC voltage potential (10) and having a sec...  
WO/2020/052851A1
The invention relates to a method for controlling the rotational speed or the torque of a motor for protecting a suppressor diode (13) in a control device of a vehicle, wherein the suppressor diode (13) converts recovered energy from the...  
WO/2020/049079A1
For controlling an electric motor to maintain a current motor position, a motor controller determines the current motor position of the electric motor and selects (S41 ) from a set of stable positions, defined by cogging torque of the el...  
WO/2020/045146A1
This shift range control device (40) controls the drive of a motor (10) having a motor winding (11), thereby switching a shift range and is provided with a drive circuit (41) and a control unit (50). The drive circuit (41) has switching ...  
WO/2020/044458A1
This electric motor drive device for ship propulsion of an embodiment has a power conversion unit and a control unit. The control unit operates an induction motor by controlling the power conversion unit on the basis of a first reference...  
WO/2020/025634A1
The invention mainly concerns an assembly for a motor vehicle, comprising: - a battery (24) comprising an internal resistance (r), and - at least one rotating electric machine (19) associated with a power inverter (21), the rotating elec...  
WO/2020/025164A1
The invention relates to a method for operating a drive system, and to a drive system, comprising a rectifier, at least one inverter having an electric motor, wherein the electric motor is connected to the AC-voltage side of the inverter...  
WO/2020/025611A1
The invention relates mainly to an assembly for a motor vehicle, comprising: a rotating electrical machine (19) that can operate in a motor mode and in a generator mode, particularly during a regenerative braking phase, said rotating ele...  
WO/2020/020719A1
Inverter-based apparatus (1) configured to control an electric motor (2), the inverter-based apparatus comprising: an input stage (4) configured to convert an alternating voltage AC to a rectified DC voltage; an electrolytic-capacitor-le...  
WO/2020/021005A1
Laundry treating machine (100) comprising: a casing (103), a laundry drum (104) mounted inside the casing (103) to rotate about a rotation axis, an electric motor (2) designed to rotate the laundry drum (104), an inverter-based apparatus...  

Matches 1 - 50 out of 13,676