About 134 results
https://drivepatents.com/patents/974727 · 21 May 2014
A vehicle (100) converts DC power from a power storage device (110) into AC power by an inverter (130) to run by driving a three-phase motor generator (140). A switching unit (170) is provided at a path electrically connecting the motor generator (140) and...
https://drivepatents.com/patents/974951 · 14 May 2014
In one embodiment, system for driving an electromagnetic appliance (2, 58) includes an electromagnetic appliance, a main-drive unit (5M, 6M) and a sub-drive unit (5S, 6S). The electromagnetic appliance includes coils (4, 59) for n number of phases, the coi...
https://drivepatents.com/patents/975263 · 7 May 2014
A power source system (5) includes a direct current power source (10), a direct current power source (20), and a power converter (50) having a plurality of switching elements (S1-S4) and reactors (L1, L2). The power converter (50) performs a direct current...
https://drivepatents.com/patents/976954 · 26 Mar 2014
Disclosed is an electric-bicycle driving apparatus. The electric-bicycle driving apparatus includes a speed-change mode operator to output a low-speed or high-speed mode signal, a controller to receive the low-speed or high-speed mode signal from the speed...
https://drivepatents.com/patents/976921 · 26 Mar 2014
Disclosed is an electric-bicycle drying apparatus. The apparatus includes a speed-change mode operator to output a low-speed or high-speed mode signal, a controller to output a first or second control signal corresponding to the low-speed or high-speed mod...
https://drivepatents.com/patents/977245 · 19 Mar 2014
Various systems 100 and method for generating electrical power in a rail vehicle are provided. In one embodiment, a vehicle system 100 includes an electrical power generation unit 114 operatively coupled with a drive shaft of an engine 106. The electrical ...
https://drivepatents.com/patents/978099 · 26 Feb 2014
Provided is a semiconductor device including: a first MOS-FET (21) joined to a first base plate (11) via solder; a second MOS-FET (22) joined to a second base plate (12) via solder; a first lead (31) joining the first base plate (11) and the second MOS-FET...
https://drivepatents.com/patents/978055 · 26 Feb 2014
A metal plate (14) is buried in a gasket (12) of a case (10) for accommodating an electric device such as an inverter. The metal plate (14) is connected to a control board (400) in the case (10), and the voltage of the metal plate (14) is determined. A ref...
https://drivepatents.com/patents/978588 · 12 Feb 2014
A PI calculation unit (230) of a rectangular-wave voltage control unit (200) calculates a control deviation by performing a PI calculation on a torque deviation (”Trq) relative to a torque command value (Trqcom), and outputs a voltage phase (Æv) of a re...
https://drivepatents.com/patents/981042 · 11 Dec 2013
A system corresponding to a plurality of different power sources (overhead contact line, power generator driven by engine, and fuel cells) is proposed as a method of using an optimum power supply in an electrified route and a non-electrified route. However...