Device for actuating a frictional converter lock-up clutch of a hydrodynamic torque converter
US-9217499-B2 · Dec 22, 2015 · US
Control device for lockup clutch
US9108619B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9108619-B2 |
| Application number | US-201213985400-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 20, 2012 |
| Priority date | Mar 1, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
Official abstract text for this publication.
A control device for a lockup clutch is provided in which when control region determination device determines that a vehicle speed and an opening degree of an accelerator pedal are in the tight region of the lockup clutch, even if the water temperature of cooling water of the or the oil temperature of hydraulic oil of the transmission is less than a predetermined temperature, engagement permission device permits engagement of the lockup clutch. It is therefore possible to improve the fuel economy of the vehicle by increasing the frequency of engagement of the lockup clutch without affecting the function of the lockup clutch. The control device even functions when the lockup clutch is engaged at low temperatures, when the engagement responsiveness is low, because the oil temperature of the hydraulic oil is low and the viscosity is high.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control device for a lockup clutch comprising a lockup clutch of a torque converter disposed between an engine and a transmission, a first temperature sensor that detects a water temperature of the engine, a second temperature sensor that detects an oil temperature of the transmission, and engagement permission means that permits engagement of the lockup clutch in a first case where the water temperature of the engine detected by the first temp…
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
Operations & Transport · mapped topic
Mechanical Engineering · mapped topic
- F16H61/143Primary
Mechanical Engineering · mapped topic
- B60W10/026Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9108619B2 cover?
- A control device for a lockup clutch is provided in which when control region determination device determines that a vehicle speed and an opening degree of an accelerator pedal are in the tight region of the lockup clutch, even if the water temperature of cooling water of the or the oil temperature of hydraulic oil of the transmission is less than a predetermined temperature, engagement permiss…
- Who is the assignee on this patent?
- MARUYAMA Fumikazu, Yamanaka Hideyuki, Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16H61/143. Mapped technology areas include Mechanical Engineering.
- 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).