Electric vehicle control device
CA 2594124 C · Owner: Mitsubishi Electric Corporation · Inventors: Maruyama, Takafumi; Negoro, Hideto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An object of the present invention is to provide an electric vehicle control device which is capable of detecting even a state in which only one phase of one induction motor is disconnected in a system where a plurality of induction motors are connected in parallel with each other and driven by one vector-controlled inverter device. The electric vehicle control device according to the present invention includes a torque calculation unit (5) for calculating the torque of the induction motor on the basis of a q-axis current I1q, a d-axis current I1d, a q-axis voltage command E1qr a d-axis , voltage command E1dr, and an inverter angular frequency .omega.inv which , are obtained by a …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 1, 2005 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 1, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.