Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Application No. | Application Title | Issue Date |
| 20100066292 | Retarding energy calculator for an electric drive machine A cooling system for a retarding system of an electric drive machine (100) includes a direct current (DC) link having first and second rails. A first resistor grid (214) is selectively placed in circuit between the rails by an automatic switch (216)... | 03/18/2010 |
| 20080315805 | CHOPPER CIRCUIT TOPOLOGIES FOR ADAPTING AN ELECTRICAL BRAKING SYSTEM IN A TRACTION VEHICLE An adaptable electrical braking system for an electrical propulsion system of a traction vehicle is provided. The electrical braking system is configured to dissipate electrical energy in a plurality of resistor grids. The braking system includes a braking system assemb... | 12/25/2008 |
| 20080218105 | Method for Operating a Fuel Pump In a method for operating a fuel pump of a motor vehicle, the fuel pump is driven by an EC electric motor for conveying fuel in a direction of an internal combustion engine. Accordingly, when no more fuel is required, the EC electric motor of the fuel pump is switched o... | 09/11/2008 |
| 20080150458 | Adjustable brake device The invention relates to an adjustable brake device that can be used in conjunction with a hinge mechanism of a folding electronic device, e.g. a clamshell mobile phone. The adjustable brake device comprises a brake actuator that is able to generate a braking force resp... | 06/26/2008 |
| 20080129232 | Method and Apparatus for Controlling Stopping of Vibration Generating Stepping Motor A method for controlling stopping of a vibration generating stepping motor is a method for controlling the stopping of an vibration generating stepping motor by a control unit, characterized in that the method includes: stopping a supply of a driving pulse to the vibrat... | 06/05/2008 |
| 20080129234 | ACTIVATION CURRENT FOR DC MOTOR HAVING BRAKE AND EMERGENCY OPERATION SUPPLY UNIT The present invention relates to an activation circuit and a method for operating such an activation circuit for a DC motor (04) having electrically actuated stopping brake (07), in particular for adjusting a rotor blade of a wind or water power facility. ... | 06/05/2008 |
| 20080048595 | Active brake for spindle motor A reverse torque, forward commutation motor driver system for a phased motor rapidly decelerates or “brakes” the motor by exciting, in sequence, a complementary excitation signal in each normal commutation state of the forward state machine, thereby providing an act... | 02/28/2008 |
| 20070216328 | Inverter Apparatus and Method of Reducing Speed of Alternating Current Motor There is provided an inverter capable of reducing a speed in a short period of time without generating an overcurrent even in a case of an alternating current motor which is easy to be saturated magnetically. A frequency of driving a motor is calculated by using a detec... | 09/20/2007 |
| 20070205732 | Methods and systems for emulating an induction motor utilizing an electronically commutated motor A method for emulating induction motor operation using an electronically commutated motor (ECM) is described herein. The method includes receiving, at the ECM, a desired operating torque, accessing induction motor operating characteristics stored within the ECM, and cal... | 09/06/2007 |
| 20070205731 | Methods and systems for dynamically braking an electronically commutated motor A method for applying braking to an electronically commutated motor that includes a switching circuit electrically coupled to one or more windings is described. The method comprises operating the switching circuit to remove power from the windings of the electronically ... | 09/06/2007 |
| 20070200523 | Motor drive apparatus and method and electrically driven brake apparatus In such a product that torque of a motor is continuously generated when a rotation number of the motor is nearly equal to zero, since an output voltage is kept at a constant value in accordance with a rotation position of the motor, such a condition that currents are co... | 08/30/2007 |
| 20070164698 | Method and device for controlling motors An electronic device is provided for controlling a motor having three phases driven by a motor driver. In one implementation, the electronic device includes a detection means and a control circuit. The detection means includes three high-gain differential amplifiers and... | 07/19/2007 |
| 20070145937 | BRAKING SYSTEM FOR ELECTRIC STEP MOTORS The present invention concerns a braking system for electric step motors, which step motors operate in conjunction with a light assembly comprising a moving head for pan or tilt of the light assembly or operating in the lamp for moving internal optical components, which... | 06/28/2007 |
| 20070040522 | Mechanical braking system for use on a vehicle having an electric propulsion system and automatic retard speed regulation A mechanical braking system is provided for a vehicle having an electric propulsion system which is utilized for retard speed regulation. While the retard speed regulation is normally performed via electric braking, in some conditions the electric braking is not able to... | 02/22/2007 |
| 20060284581 | ELECTRICAL MACHINE AND METHOD OF CONTROLLING THE SAME An electrical machine having a stator and a rotor. The stator includes a core and a plurality of windings disposed on the core in a multiple-phase arrangement. The rotor is disposed adjacent to the stator to interact with the stator. A method of operating the motor incl... | 12/21/2006 |
| 20060250098 | Brake system and method for a DC brush motor without a hall sensor A brake system and method for a direct current brushed motor without a Hall sensor are provided. After the system is activated, the motor is pre-braked in order to detect and record the stationary armature current while the motor is in a stationary state. As the motor i... | 11/09/2006 |
| 20060238040 | Rotating electric machine and method and device for positioning rotational position sensor for the machine The rotating electric machine has a stator coil wound around a stator, a magnetic pole and a signal rotor fixed to a rotor, and a detection stator, disposed opposite to the signal rotor, for detecting the rotational position of the rotor, characterized by further compri... | 10/26/2006 |
| 20060043921 | Control apparatus and method for linear synchronous motor The start timing of the pole position inference process of the linear motor installed vertically is delayed by a predetermined time after instruction of brake release. For example, from (1) increasing of the thrust instruction value of an ASR control system up to a pred... | 03/02/2006 |
| 20060028160 | Method and system for electronic braking of an electric motor having no permanent magnets System for braking either linear or rotary electric motor having no permanent magnets comprising at least one servo amplifier and an electronic circuit for generating a pulsed control signal for controlling the braking of the motor. The electronic circuit of the present... | 02/09/2006 |
| 20050231149 | Method and device for synchronously controlling multiple printing presses or multiple units in printing press A method and a device for synchronously controlling multiple printing presses or multiple units in a printing press can reduce power consumption and improve durability of motors and motor bearings. A synchronous control device for multiple printing presses includes mach... | 10/20/2005 |
| 20050082999 | Electro-mechanical actuator braking apparatus and method using motor commutation sensor output to derive piston displacement A braking system is disclosed that includes a brake (22), a ram (20) shiftable in a linear direction relative to the brake (22) for actuating the brake (22), and a stop (24) for limiting movement of the ram (20). The system furt... | 04/21/2005 |
