About 31 results
https://drivepatents.com/patents/972616 · 16 Jul 2014
An over temperature protection device for electric motors applicable to a railway vehicle driving system that operates a plurality of electric motors in parallel using one or a plurality of inverter devices includes a control device 14 configured to contro...
https://drivepatents.com/patents/975454 · 30 Apr 2014
The component (12) has a guide device provided with a cooling medium for cooling a portion of the component by a phase transition part. A pipe line arrangement conducts the cooling medium from a cooling medium storage to the portion of the component. An in...
https://drivepatents.com/patents/976294 · 9 Apr 2014
The electrical energy storage device of wheelchair or other small vehicle is rechargeable with the manual movement or due to the downhill automatic movement of the vehicle via the protection circuit (10) by the induced voltage (U-Mot) of the motor (13). Th...
https://drivepatents.com/patents/979580 · 15 Jan 2014
An electric machine connectable to a driven device of a vehicle, the electric machine including a stator and a housing (24) containing the stator. The housing (24) has at least one cooling channel (36) around at least a portion of an internal circumference...
https://drivepatents.com/patents/982912 · 23 Oct 2013
The converter (1) has a first control logic device (14) attached to a request line (31) and a sensor conductor (29). A second control logic device (15) is attached to a request line (32) for a request signal (R) and another sensor conductor (30) for sensor...
https://drivepatents.com/patents/989768 · 12 Jun 2013
An electronic power converter comprises an AC-to-DC converter stage (105) between an alternating voltage terminal and a direct polarity intermediate circuit (104), and at least two DC-to-DC converter stages (106, 107) connected to the intermediate circuit....
https://drivepatents.com/patents/994106 · 9 Jan 2013
Disclosed is an electric vehicle (10) which receives power from a road surface (104) by means of a wireless connection, in which an optimal configuration of a repeater (66) (which is a resonator) and a receiving coil (81) relative to the vehicle body (16) ...
https://drivepatents.com/patents/1000761 · 4 Jul 2012
Under a condition that rotor rotation speeds (Ées are equal, winding wire currents Id, Iq are equal, and winding wire inductances Ld, Lq are equal in first and second electric motors 1, 2, a magnet temperature anomaly detector 30 provided in a microcomput...
https://drivepatents.com/patents/1001870 · 30 May 2012
An electric motor includes a frame, a stator disposed in the frame, a rotor disposed in the frame, and a cooling unit configured to perform a cooling operation by supplying a cooling fluid into the frame. Under this configuration, a cooling function may be...
https://drivepatents.com/patents/1002309 · 16 May 2012
A permanent magnet rotor (101) for an axial flux electrical machine of a mobile working machine comprises a shaft (102), a body (103) made of electrically non-conductive material and connected to the shaft, and permanent magnet pole-modules (104) attached ...