Vehicle transmission with tie-up monitoring logic
US-9222531-B2 · Dec 29, 2015 · US
Vehicle controller
US9518654B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9518654-B2 |
| Application number | US-201114236258-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 10, 2011 |
| Priority date | Aug 10, 2011 |
| Publication date | Dec 13, 2016 |
| Grant date | Dec 13, 2016 |
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- Title
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- Abstract
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- Assignees and inventors
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Abstract
Official abstract text for this publication.
A vehicle controller includes a lock-up clutch disposed to a power transmission path between an engine and a driving wheel, and a clutch configured to connect and disconnect the power transmission path, wherein at the time of switching driven traveling for causing a vehicle to travel by connecting the power transmission path and inertia traveling for causing the vehicle to travel by disconnecting the power transmission path, the lock-up clutch and the clutch are switched at switching start timings different from each other.
First claim
Opening claim text (preview).
The invention claimed is: 1. A vehicle controller comprising: a lock-up clutch disposed to a power transmission path between an engine and a driving wheel; and a clutch configured to connect and disconnect the power transmission path, wherein a release start timing of the lock-up clutch is prior to a release start timing of the clutch at a time of switching from driven traveling for causing a vehicle to travel by connecting the power transmission path to inertia traveling for causing the vehicle to travel by disconnecting the power transmission path, and an engagement start timing of the clutch is made different from an engagement start timing of the lock-up clutch at a time of switching from the inertia traveling to the driven traveling is carried out, wherein the inertia traveling is carried out when an accelerator opening degree of an accelerator pedal is set to a predetermined opening degree or less, wherein in the inertia traveling, engine speed is reduced to an idle rotation number. 2. The vehicle controller according to claim 1 , wherein at the time of switching from the inertia traveling to the driven traveling, the engagement start timing of the clutch is prior to the engagement start timing of the lock-up clutch. 3. The vehicle controller according to claim 1 , wherein at the time of switching between the driven traveling and the inertia traveling, an auxiliary machine load of the engine is reduced. 4. The vehicle controller according to claim 3 , wherein at the time of switching from the inertia traveling to the driven traveling, the engagement start timing of the clutch is prior to the engagement start timing of the lock-up clutch. 5. A vehicle controller comprising: a lock-up clutch disposed to a power transmission path between an engine and a driving wheel; and a clutch configured to connect and disconnect the power transmission path, wherein at least any one of that a release start timing of the lock-up clutch is made different from a release start timing of the clutch at a time of switching from driven traveling for causing a vehicle to travel by connecting the power transmission path to inertia traveling for causing the vehicle to travel by disconnecting the power transmission path, and an engagement start timing of the clutch is made different from an engagement start timing of the lock-up clutch at a time of switching from the inertia traveling to the driven traveling is carried out and wherein at the time of switching between the driven traveling and the inertia traveling, an auxiliary machine load of the engine is reduced. 6. A vehicle controller comprising: a lock-up clutch disposed to a power transmission path between an engine and a driving wheel; and a clutch configured to connect and disconnect the power transmission path, wherein a release start timing of the lock-up clutch is prior to a release start timing of the clutch at a time of switching from driven traveling for causing a vehicle to travel by connecting the power transmission path to inertia traveling for causing the vehicle to travel by disconnecting the power transmission path, and an engagement start timing of the clutch is made different from an engagement start timing of the lock-up clutch at a time of switching from the inertia traveling to the driven traveling is carried out, wherein the inertia traveling is carried out when an accelerator opening degree is set to a predetermined opening degree or less, wherein at the time of switching between the driven traveling and the inertia traveling, an auxiliary machine load of the engine is reduced. 7. The vehicle controller according to claim 6 , wherein at the time of switching from the inertia traveling to the driven traveling, the engagement start timing of the clutch is prior to the engagement start timing of the lock-up clutch.
Assignees
Inventors
Classifications
- F16H61/14Primary
Control of torque converter lock-up clutches · CPC title
- F16H61/143Primary
using electric control means · CPC title
Signals to a clutch outside the gearbox · CPC title
without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral · CPC title
for smoothing gear shift shock · CPC title
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- What does patent US9518654B2 cover?
- A vehicle controller includes a lock-up clutch disposed to a power transmission path between an engine and a driving wheel, and a clutch configured to connect and disconnect the power transmission path, wherein at the time of switching driven traveling for causing a vehicle to travel by connecting the power transmission path and inertia traveling for causing the vehicle to travel by disconnecti…
- Who is the assignee on this patent?
- Mitsuyasu Masaki, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16H61/14. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 13 2016 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).