Method and Control Unit for Operating a Drive Train of a Vehicle
US-2024068563-A1 · Feb 29, 2024 · US
Method and system for automated control of transmission ratio change
US8965645B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8965645-B2 |
| Application number | US-49206609-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 25, 2009 |
| Priority date | Jun 25, 2009 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
Official abstract text for this publication.
The present invention relates to a method and system for automated control of transmission ratio change which balances the requirements for power with energy efficiency. A plurality of sensors detect environmental conditions of a vehicle. An environmental conditions analysis unit analyzes the environmental conditions to determine whether the detected environmental conditions indicate a likelihood of a transmission ratio increase. When the detected environmental conditions indicate the likelihood of the transmission ratio increase, an automatic transmission changes in operation from a normal state to a prepared state. However, after a predetermined amount of time, the automatic transmission changes from the prepared state back to the normal state when there is no user indication that the transmission ratio should be increased.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for automated control of transmission ratio change of a transmission for a first vehicle, the method comprising: detecting environmental conditions of the first vehicle; determining whether the detected environmental conditions indicate a likelihood of a transmission ratio increase based on whether a longitudinal acceleration of the first vehicle is sufficient to pass a second vehicle; maintaining the operation of the transmission in a normal st…
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Mechanical Engineering · mapped topic
- F16H61/0213Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8965645B2 cover?
- The present invention relates to a method and system for automated control of transmission ratio change which balances the requirements for power with energy efficiency. A plurality of sensors detect environmental conditions of a vehicle. An environmental conditions analysis unit analyzes the environmental conditions to determine whether the detected environmental conditions indicate a likeliho…
- Who is the assignee on this patent?
- Ahn Samuel S, Toyota Eng & Mfg North America
- What technology area does this patent fall under?
- Primary CPC classification F16H61/0213. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 24 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).