Control device for vehicle
US-2017028990-A1 · Feb 2, 2017 · US
Control device for vehicle and control method of the same
US10612656B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10612656-B2 |
| Application number | US-201716070736-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 16, 2017 |
| Priority date | Jan 19, 2016 |
| Publication date | Apr 7, 2020 |
| Grant date | Apr 7, 2020 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A control device of controlling a vehicle that includes an automatic transmission is provided with a control unit. The automatic transmission includes a power transmission mechanism with an engaging element, and a variator connected in series to the power transmission mechanism. The control unit of this device completes engagement of the engaging element after downshifting of the variator is completed when at least an accelerator pedal opening becomes not smaller than a predetermined opening, during neutral running control which brings the power transmission mechanism into a power shut-off state during running of the vehicle.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control device of controlling a vehicle that includes an automatic transmission having: a power transmission mechanism having an engaging element; a variator connected in series to the power transmission mechanism; and an electric oil pump, the control device comprising: a control unit configured to complete engagement of the engaging element after downshifting of the variator is completed when at least an accelerator pedal opening becomes not smaller than a predetermined opening, during neutral running control which brings the power transmission mechanism into a power shut-off state during running of the vehicle, wherein the control unit makes a rotation speed of the electric oil pump higher upon cancelling the neutral running control when engagement of the engaging element is completed after downshifting of the variator is completed, compared to a case where the downshifting of the variator is completed after the engagement of the engaging element is completed. 2. The control device according to claim 1 , wherein the vehicle includes a driving source; the automatic transmission includes a mechanical oil pump driven by the driving source, and the control unit: stops the driving source during the neutral running control; and starts engagement of the engaging element after starting the driving source when cancelling the neutral running control. 3. The control device according to claim 1 , wherein the control unit completes downshifting of the variator after engagement of the engaging element is completed when cancelling the neutral running control under the condition that the accelerator pedal opening is less than the predetermined opening. 4. The control device according to claim 1 , wherein the control unit completes downshifting of the variator after engagement of the engaging element is completed when a brake pedal is depressed during the neutral running control. 5. The control device according to claim 1 , wherein the control unit completes downshifting of the variator after engagement of the engaging element is completed when a vehicle speed becomes less than a predetermined vehicle speed during the neutral running control. 6. A control device of controlling a vehicle that includes an automatic transmission having: a power transmission mechanism having an engaging element; and a variator connected in series to the power transmission mechanism, the control device comprising: a control unit configured to complete engagement of the engaging element after downshifting of the variator is completed when at least an accelerator pedal opening becomes not smaller than a predetermined opening, during neutral running control which brings the power transmission mechanism into a power shut-off state during running of the vehicle, wherein the control unit completes downshifting of the variator after engagement of the engaging element is completed when cancelling the neutral running control under the condition that the accelerator pedal opening is less than the predetermined opening. 7. A control method of controlling a vehicle that includes an automatic transmission having: a power transmission mechanism having an engaging element; a variator connected in series to the power transmission mechanism; and an electric oil pump, the control method comprising: completing engagement of the engaging element after downshifting of the variator is completed when at least an accelerator pedal opening becomes not smaller than a predetermined opening, during neutral running control which brings the power transmission mechanism into a power shut-off state during running of the vehicle, wherein a rotation speed of the electric oil pump is made higher upon cancelling the neutral running control when engagement of the engaging element is completed after downshifting of the variator is completed, compared to a case where the downshifting of the variator is completed after the engagement of the engaging element is completed. 8. A control method of controlling a vehicle that includes an automatic transmission having: a power transmission mechanism having an engaging element; and a variator connected in series to the power transmission mechanism, the control method comprising: completing engagement of the engaging element after downshifting of the variator is completed when at least an accelerator pedal opening becomes not smaller than a predetermined opening, during neutral running control which brings the power transmission mechanism into a power shut-off state during running of the vehicle; and completing downshifting of the variator after engagement of the engaging element is completed when cancelling the neutral running control under the condition that the accelerator pedal opening is less than the predetermined opening. 9. A control device of controlling a vehicle that includes an automatic transmission having: a power transmission mechanism having an engaging element; a variator connected in series to the power transmission mechanism; and an electric oil pump, the control device comprising: means for controlling the power transmission mechanism so that engagement of the engaging element is completed after downshifting of the variator is completed when at least an accelerator pedal opening becomes not smaller than a predetermined opening, during neutral running control which brings the power transmission mechanism into a power shut-off state during running of the vehicle; and means for controlling the electric oil pump so that a rotation speed of the electric oil pump is made higher upon cancelling the neutral running control when engagement of the engaging element is completed after downshifting of the variator is completed, compared to a case where the downshifting of the variator is completed after the engagement of the engaging element is completed. 10. A control device of controlling a vehicle that includes an automatic transmission having: a power transmission mechanism having an engaging element; and a variator connected in series to the power transmission mechanism, the control device comprising: means for controlling the power transmission mechanism so that engagement of the engaging element is completed after downshifting of the variator is completed when at least an accelerator pedal opening becomes not smaller than a predetermined opening, during neutral running control which brings the power transmission mechanism into a power shut-off state during running of the vehicle; and means for controlling the variator so that downshifting of the variator is completed after engagement of the engaging element is completed when cancelling the neutral running control under the condition that the accelerator pedal opening is less than the predetermined opening.
Assignees
Inventors
Classifications
characterised by the signals used · CPC title
characterised by initiating reverse gearshift · CPC title
characterised by the method for generating shift signals · CPC title
- F16H63/46Primary
Signals to a clutch outside the gearbox · CPC title
Accelerator pedal position · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10612656B2 cover?
- A control device of controlling a vehicle that includes an automatic transmission is provided with a control unit. The automatic transmission includes a power transmission mechanism with an engaging element, and a variator connected in series to the power transmission mechanism. The control unit of this device completes engagement of the engaging element after downshifting of the variator is co…
- Who is the assignee on this patent?
- Jatco Ltd, Nissan Motor
- What technology area does this patent fall under?
- Primary CPC classification F16H63/46. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 07 2020 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).