Control Device and Working Machine
US-2017121944-A1 · May 4, 2017 · US
Work machine with lifting magnet
US10604382B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10604382-B2 |
| Application number | US-201715588881-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 8, 2017 |
| Priority date | Nov 10, 2014 |
| Publication date | Mar 31, 2020 |
| Grant date | Mar 31, 2020 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A work machine provided with a lifting magnet includes the lifting magnet, an arm that supports the lifting magnet, a boom that supports the arm, an upper turning body that supports the boom, an engine, a selective catalytic reduction system, and a controller that controls attraction and release by the lifting magnet.
First claim
Opening claim text (preview).
What is claimed is: 1. A work machine provided with a lifting magnet, the work machine comprising: the lifting magnet; an arm that supports the lifting magnet; a boom that supports the arm; an upper turning body that supports the boom; an engine; a selective catalytic reduction system; and a controller that controls attraction and release by the lifting magnet, wherein the controller controls the lifting magnet depending on a state of a residual amount of urea water used in the selective catalytic reduction system and the attraction and release by the lifting magnet. 2. The work machine provided with the lifting magnet according to claim 1 , wherein, after the residual amount of the urea water used in the selective catalytic reduction system becomes less than a predetermined amount, upon determining that the lifting magnet is in an attraction state, the controller causes the attraction state of the lifting magnet to be continued. 3. The work machine provided with the lifting magnet according to claim 1 , wherein, after the residual amount of the urea water used in the selective catalytic reduction system becomes less than a predetermined amount, upon determining that the lifting magnet is in a release state, the controller disallows the lifting magnet to be magnetized. 4. The work machine provided with the lifting magnet according to claim 1 , wherein, after the residual amount of the urea water used in the selective catalytic reduction system becomes less than a predetermined amount, the controller causes a revolution number of the engine to be a revolution number at which attraction force of the lifting magnet is maintained. 5. The work machine provided with the lifting magnet according to claim 1 , wherein, after the residual amount of the urea water used in the selective catalytic reduction system becomes less than a predetermined amount, upon determining that the lifting magnet is in an attraction state, the controller causes the attraction state of the lifting magnet to be continued, and then, upon determining that the lifting magnet is in a release state, the controller causes a revolution number of the engine to be an idling revolution number. 6. The work machine provided with the lifting magnet according to claim 1 , wherein, upon determining that the residual amount of the urea water used in the selective catalytic reduction system becomes less than a predetermined amount and that the lifting magnet is in a release state, the controller disallows the lifting magnet to be magnetized. 7. The work machine provided with the lifting magnet according to claim 1 , wherein the controller controls the lifting magnet depending on whether, upon detecting that the residual amount of the urea water used in the selective catalytic reduction system becomes less than a predetermined amount, the lifting magnet is in an attraction state or in a release state. 8. The work machine provided with the lifting magnet according to claim 1 , wherein the controller controls a revolution number of the engine depending on a state of the residual amount of the urea water used in the selective catalytic reduction system. 9. The work machine provided with the lifting magnet according to claim 1 , wherein the controller controls a revolution number of the engine depending on whether, upon detecting that the residual amount of the urea water used in the selective catalytic reduction system becomes less than a predetermined amount, the lifting magnet is in an attraction state or in a release state.
Assignees
Inventors
Classifications
- B66C1/08Primary
Circuits therefor (for electromagnets in general H01F7/18) · CPC title
Electric or electro-mechanical or mechanical control devices of vehicle sub-units (for vehicles in general B60W) · CPC title
- F01N3/2066Primary
Selective catalytic reduction [SCR] · CPC title
the substance being ammonia or urea · CPC title
Monitoring or diagnostic devices for exhaust-gas treatment apparatus · CPC title
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Frequently asked questions
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- What does patent US10604382B2 cover?
- A work machine provided with a lifting magnet includes the lifting magnet, an arm that supports the lifting magnet, a boom that supports the arm, an upper turning body that supports the boom, an engine, a selective catalytic reduction system, and a controller that controls attraction and release by the lifting magnet.
- Who is the assignee on this patent?
- Sumitomo Shi Constr Mach Co
- What technology area does this patent fall under?
- Primary CPC classification B66C1/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 2020 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).