Electrically driven working vehicle

US9366012B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9366012-B2
Application numberUS-201314377566-A
CountryUS
Kind codeB2
Filing dateFeb 13, 2013
Priority dateFeb 17, 2012
Publication dateJun 14, 2016
Grant dateJun 14, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An electrically driven working vehicle that requiring reduced power assistance from an electrical storage device is provided. The vehicle has an engine, a generator motor connected to the engine, a generator inverter for controlling the amount of power generated by the generator motor, a traveling motor for driving the vehicle, an electrical storage device connected to the generator inverter and the traveling motor, and a forward/reverse switching device for switching the traveling direction of the vehicle. The vehicle further includes a control device for outputting to the generator inverter an instruction to increase the amount of power generated by the generator motor when the voltage of the electrical storage device is equal to or lower than a maximum voltage level and a speed signal of the traveling motor given upon switching of the forward/reverse switching device is equal to or lower than a predetermined speed.

First claim

Opening claim text (preview).

The invention claimed is: 1. An electrically driven working vehicle having an engine, a generator motor connected mechanically to the engine, a generator inverter for controlling the amount of power generated by the generator motor, a traveling motor for driving a vehicle body, an electrical storage device connected electrically to the generator inverter and to the traveling motor, and a forward/reverse switch for switching the traveling direction of the vehicle body, the electrica…

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Frequently asked questions

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What does patent US9366012B2 cover?
An electrically driven working vehicle that requiring reduced power assistance from an electrical storage device is provided. The vehicle has an engine, a generator motor connected to the engine, a generator inverter for controlling the amount of power generated by the generator motor, a traveling motor for driving the vehicle, an electrical storage device connected to the generator inverter an…
Who is the assignee on this patent?
Hitachi Construction Machinery
What technology area does this patent fall under?
Primary CPC classification E02F9/2075. Mapped technology areas include Fixed Constructions.
When was this patent published?
Publication date Tue Jun 14 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).