Machine electric drive system
US-2015368874-A1 · Dec 24, 2015 · US
Hydraulic system and method for a hybrid vehicle
US9108499B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9108499-B2 |
| Application number | US-201313736347-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 8, 2013 |
| Priority date | Feb 17, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
Official abstract text for this publication.
A hydraulic system for a hybrid module which is located between an engine and a transmission includes a parallel arrangement of a mechanical pump and an electric pump. Each pump is constructed and arranged to deliver oil to other portions of the hydraulic system depending on the operational mode. Three operational modes are described including an electric mode, a transition mode, and a cruise mode. Various monitoring and control features are incorporated into the hydraulic system.
First claim
Opening claim text (preview).
The invention claimed is: 1. A hydraulic system for a hybrid electric vehicle comprising: a sump containing hydraulic fluid; a main regulator valve; a main regulator by-pass valve, which is in direct fluid communication with said main regulator valve; a mechanical pump constructed and arranged in fluid communication with said sump and in direct fluid communication with said main regulator valve for delivering hydraulic fluid directly from said sump to said main regulator val…
Assignees
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Classifications
- B60K6/20Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Mechanical Engineering · mapped topic
Operations & Transport · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US9108499B2 cover?
- A hydraulic system for a hybrid module which is located between an engine and a transmission includes a parallel arrangement of a mechanical pump and an electric pump. Each pump is constructed and arranged to deliver oil to other portions of the hydraulic system depending on the operational mode. Three operational modes are described including an electric mode, a transition mode, and a cruise m…
- Who is the assignee on this patent?
- Allison Transm Inc, Allison Transmisssion Inc
- What technology area does this patent fall under?
- Primary CPC classification B60K6/20. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 18 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).