Emergency braking for autonomous vehicles
US-2020108808-A1 · Apr 9, 2020 · US
Driving assistance device
US2022032883A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022032883-A1 |
| Application number | US-202117376705-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 15, 2021 |
| Priority date | Aug 3, 2020 |
| Publication date | Feb 3, 2022 |
| Grant date | — |
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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.
There is provided a driving assistance device that executes deceleration assistance of a host vehicle when a relative situation between a deceleration object in front of the host vehicle and the host vehicle satisfies a preset deceleration assistance precondition and a driver of the host vehicle does not operate an accelerator and a brake, the driving assistance device including a first deceleration assistance execution unit configured to execute a first deceleration assistance when the deceleration assistance precondition is satisfied in a state in which the driver of the host vehicle does not operate the accelerator and the brake, and a second deceleration assistance execution unit configured to execute a second deceleration assistance when the driver releases the accelerator or the brake in a state in which the deceleration assistance precondition is satisfied.
First claim
Opening claim text (preview).
What is claimed is: 1 . A driving assistance device that executes deceleration assistance of a host vehicle when a relative situation between a deceleration object in front of the host vehicle and the host vehicle satisfies a preset deceleration assistance precondition and a driver of the host vehicle does not operate an accelerator and a brake, the driving assistance device comprising: a first deceleration assistance execution unit configured to execute a first deceleration assistance when the deceleration assistance precondition is satisfied in a state in which the driver of the host vehicle does not operate the accelerator and the brake; and a second deceleration assistance execution unit configured to execute a second deceleration assistance when the driver releases the accelerator or the brake in a state in which the deceleration assistance precondition is satisfied, wherein the first deceleration assistance and the second deceleration assistance are different in at least one of a deceleration upper limit value, a deceleration jerk upper limit value, or a deceleration assistance start timing. 2 . The driving assistance device according to claim 1 , wherein the second deceleration assistance execution unit is configured to execute a deceleration assistance for accelerator release as the second deceleration assistance when the driver releases the accelerator in a state in which the deceleration assistance precondition is satisfied, and the deceleration assistance for accelerator release is a deceleration assistance that has at least one of the deceleration upper limit value greater than the first deceleration assistance, the deceleration jerk upper limit value greater than the first deceleration assistance, or the deceleration assistance start timing later than the first deceleration assistance. 3 . The driving assistance device according to claim 1 , wherein the second deceleration assistance execution unit is configured to execute a deceleration assistance for brake release as the second deceleration assistance when the driver releases the brake in a state in which the deceleration assistance precondition is satisfied, and the deceleration assistance for brake release is a deceleration assistance that has at least one of the deceleration upper limit value smaller than the first deceleration assistance, the deceleration jerk upper limit value smaller than the first deceleration assistance, or the deceleration assistance start timing later than the first deceleration assistance. 4 . The driving assistance device according to claim 2 , wherein the second deceleration assistance execution unit is configured to execute a deceleration assistance for brake release as the second deceleration assistance when the driver releases the brake in a state in which the deceleration assistance precondition is satisfied, and the deceleration assistance for brake release is a deceleration assistance that has at least one of the deceleration upper limit value smaller than the first deceleration assistance, the deceleration jerk upper limit value smaller than the first deceleration assistance, or the deceleration assistance start timing later than the first deceleration assistance. 5 . The driving assistance device according to claim 1 , wherein the second deceleration assistance execution unit is configured to execute a deceleration assistance for accelerator release as the second deceleration assistance when the driver releases the accelerator in a state in which the deceleration assistance precondition is satisfied, and execute a deceleration assistance for brake release as the second deceleration assistance when the driver releases the brake in a state in which the deceleration assistance precondition is satisfied, and the deceleration assistance for accelerator release is a deceleration assistance that has at least one of the deceleration upper limit value greater than the deceleration assistance for brake release, the deceleration jerk upper limit value greater than the deceleration assistance for brake release, or the deceleration assistance start timing earlier than the deceleration assistance for brake release.
Assignees
Inventors
Classifications
Brake pedal position · CPC title
Braking system · CPC title
Relative longitudinal speed · CPC title
Combustion engines, Gas turbines · CPC title
- B60W10/06Primary
including control of combustion engines · CPC title
Patent family
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Frequently asked questions
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- What does patent US2022032883A1 cover?
- There is provided a driving assistance device that executes deceleration assistance of a host vehicle when a relative situation between a deceleration object in front of the host vehicle and the host vehicle satisfies a preset deceleration assistance precondition and a driver of the host vehicle does not operate an accelerator and a brake, the driving assistance device including a first deceler…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60W10/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Feb 03 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).