Control device for gearbox
US-2024263619-A1 · Aug 8, 2024 · US
Control device for gearbox
US12180944B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12180944-B2 |
| Application number | US-202218693222-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 29, 2022 |
| Priority date | Sep 23, 2021 |
| Publication date | Dec 31, 2024 |
| Grant date | Dec 31, 2024 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A control device for a gearbox which includes a mechanical pump and an electric pump, the mechanical pump having a first-stage displacement and a second-stage displacement, and the first-stage displacement being less than the second-stage displacement, the control device including a sensor module for detecting an oil pressure of a lubricating oil of the gearbox and a mechanical pump control module for, when the oil pressure is above an oil pressure threshold, controlling the mechanical pump to operate at the first-stage displacement, and when the oil pressure is below the oil pressure threshold, controlling the mechanical pump to operate at the second-stage displacement.
First claim
Opening claim text (preview).
What is claimed is: 1. A control device for a gearbox which comprises a mechanical pump and an electric pump, the mechanical pump having a first-stage displacement and a second-stage displacement, and the first-stage displacement being less than the second-stage displacement, the control device comprising: a sensor module for detecting an oil pressure of a lubricating oil of the gearbox; and a mechanical pump control module configured to, when the oil pressure is above an oil pressure threshold, control the mechanical pump to operate at the first-stage displacement, and when the oil pressure is below the oil pressure threshold, control the mechanical pump to operate at the second-stage displacement. 2. The control device of claim 1 , wherein the mechanical pump is a two-stage variable displacement pump. 3. The control device of claim 1 , wherein the mechanical pump is a continuously variable displacement pump.
Assignees
Inventors
Classifications
Controlled cooling or heating of lubricant; Temperature control therefor · CPC title
using auxiliary pumps, e.g. pump driven by a different power source than the engine · CPC title
using multiple pumps with different power sources or a single pump with different power sources, e.g. one and the same pump may selectively be driven by either the engine or an electric motor · CPC title
Pressure control for supplying lubricant; Circuits or valves therefor · CPC title
Pumps · CPC title
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- What does patent US12180944B2 cover?
- A control device for a gearbox which includes a mechanical pump and an electric pump, the mechanical pump having a first-stage displacement and a second-stage displacement, and the first-stage displacement being less than the second-stage displacement, the control device including a sensor module for detecting an oil pressure of a lubricating oil of the gearbox and a mechanical pump control mod…
- Who is the assignee on this patent?
- Zf Wind Power Tianjin Co Ltd, Zf Wind Power Antwerpen Nv
- What technology area does this patent fall under?
- Primary CPC classification F03D80/707. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 31 2024 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).