About 51 results
https://drivepatents.com/patents/964252 · 7 Jan 2015
A control section (20) of a power supply device calculates a battery voltage on the basis of a capacitor voltage detected by a voltage sensor (17) during precharging that is performed with a main relay section (12) turned off and a precharge relay section ...
https://drivepatents.com/patents/965624 · 31 Dec 2014
Provided is a control device for an AC rotating machine, for controlling the AC rotating machine including a plurality of sets of windings. The control device includes: a plurality of inverters each including, in respective phases, switching elements for c...
https://drivepatents.com/patents/968994 · 8 Oct 2014
Battery system (1), comprising a plurality of cells (3), a load circuit (4) to which the voltage of the cells (3) is applied, a current sensor (5) which is configured to detect the current flowing in the load circuit (4), an electronic unit (6) which is co...
https://drivepatents.com/patents/972176 · 23 Jul 2014
If there is a possibility of a coolant of a cooler being frozen, switching elements are made to generate heat by feeding a current through the switching elements. Two kinds of sensors for measuring a temperature on the side of a heat receiving portion and ...
https://drivepatents.com/patents/974143 · 4 Jun 2014
A battery system includes a power supply device which supplies power, a battery device in which a plurality of substantially identical battery units are connected in parallel, wherein each battery unit includes a power conversion unit which converts the po...
https://drivepatents.com/patents/975981 · 23 Apr 2014
The maneuvering drive comprises a controller and multiple drive units (24), where each drive unit has an electric drive motor with a rotor. The controller and the drive unit are operated in a diagnostic mode, in which the rotor is oscillated around an init...
https://drivepatents.com/patents/980016 · 8 Jan 2014
An electric power converter which is provided with: a plurality of power conversion elements; a first control circuit which outputs a first control signal; an electricity storage circuit; a second control circuit which outputs a second control signal in ca...
https://drivepatents.com/patents/980475 · 25 Dec 2013
Disclosed is an inverter-charger combined device for electric vehicles configured to drive a 3-phase motor by charging a high voltage battery in case of charging mode, and switching a power of the high voltage battery in case of operation mode, the device ...
https://drivepatents.com/patents/980911 · 18 Dec 2013
An object is to determine a current limit level most suitable to a drive system for a hybrid automobile or an electric automobile so that a DC-side capacitor is prevented from being broken down when an inverter is stopped in an emergency during high-speed ...
https://drivepatents.com/patents/982048 · 13 Nov 2013
A charging and discharging device includes a switching circuit 44, an input of which is connected to a power supply, the switching circuit 44 adjusting an output current IB to a power storing unit 60 connected to an output of the switching circuit 44, and ...