Charging system for energy storage device of hybrid construction machinery
US-2015368877-A1 · Dec 24, 2015 · US
Hybrid construction machine
US9217239B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9217239-B2 |
| Application number | US-201414464841-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 21, 2014 |
| Priority date | Sep 24, 2013 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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Abstract
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Provided is a hybrid construction machine capable of preventing overcharge, comprising: an engine; a generator-motor; a hydraulic pump; a hydraulic actuator to be operated by the hydraulic pump as a hydraulic pressure source; an actuator regeneration section to make a regenerative action of generating actuator regenerated-electric-power through return fluid from the hydraulic actuator; an electric storage device; a charging-rate detector; and a control section. The control section performs: causing the electric storage device to be charged with electric power generated by the generator-motor and the actuator regenerated-electric-power; causing the generator-motor to make a motor action through electric power stored in the electric storage device to assist the engine; and a regeneration control including stopping the generator action and restricting the actuator regenerated-electric-power, when a detected charging rate of the electric storage device is not smaller than a preset charging-rate limitation value.
First claim
Opening claim text (preview).
What is claimed is: 1. A hybrid construction machine comprising: an engine; a generator-motor configured to make a generator action and a motor action; a hydraulic pump configured to be driven by the engine; a hydraulic actuator configured to be operated by the hydraulic pump as a hydraulic pressure source; an actuator regeneration section configured to make a regenerative action of generating actuator regenerated-electric-power through return fluid from the hydraulic actu…
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Operations & Transport · mapped topic
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US9217239B2 cover?
- Provided is a hybrid construction machine capable of preventing overcharge, comprising: an engine; a generator-motor; a hydraulic pump; a hydraulic actuator to be operated by the hydraulic pump as a hydraulic pressure source; an actuator regeneration section to make a regenerative action of generating actuator regenerated-electric-power through return fluid from the hydraulic actuator; an elect…
- Who is the assignee on this patent?
- Kobelco Constr Mach Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification E02F9/2091. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Dec 22 2015 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).