Braking force control system for vehicle
US-9789861-B2 · Oct 17, 2017 · US
Vehicle brake control device
US9751509B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9751509-B2 |
| Application number | US-201314654732-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 25, 2013 |
| Priority date | Dec 25, 2012 |
| Publication date | Sep 5, 2017 |
| Grant date | Sep 5, 2017 |
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Abstract
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A vehicle brake control device performs select-low anti-lock brake control. In the select-low anti-lock brake control, in a decrease period, in which braking force on a first wheel that is one of left and right wheels that has a lower wheel speed is decreased, braking force on a second wheel that is one of the left and right wheels that has a higher wheel speed is also decreased. In an increase period, in which the braking force on the first wheel is increased, the braking force on the second wheel is also increased. The vehicle brake control device is configured such that, when performing the anti-lock brake control, the vehicle brake device sets the braking force on the second wheel to be greater when the tendency for instability in the vehicle behavior is small than when such tendency is large.
First claim
Opening claim text (preview).
The invention claimed is: 1. A vehicle brake control device that performs select-low anti-lock brake control, in which in a decrease period, in which braking force on a first wheel that is one of right and left wheels that has a lower wheel speed is decreased, braking force on a second wheel that is one of the right and left wheels that has a higher wheel speed is also decreased, and in an increase period, in which the braking force on the first wheel increased, the braking force on the second wheel is also increased wherein the vehicle brake control device is configured such that, when performing the anti-lock brake control, the vehicle brake control device sets the braking force on the second wheel to be greater when a tendency for instability in the behavior of the vehicle is small than when such tendency is large. 2. The vehicle brake control device according to claim 1 , wherein a decrease amount of the braking force on the second wheel in the decrease period is set to be smaller when the tendency for instability in the vehicle behavior is small than when such tendency is large. 3. The vehicle brake control device according to claim 2 , wherein the decrease amount of the braking force on the second wheel in the decrease period is set by multiplying a preset basic decrease amount by a decrease correction coefficient, and the decrease correction coefficient is set to be smaller when the tendency for instability in the vehicle behavior is small than when such tendency is large. 4. The vehicle brake control device according to claim 1 , wherein an increase amount of the braking force on the second wheel in the increase period is set to be greater when the tendency for instability in the vehicle behavior is small than when such tendency is large. 5. The vehicle brake control device according to claim 4 , wherein the increase amount of the braking force on the second wheel in the increase period is set by multiplying a preset basic increase amount by an increase correction coefficient, and the increase correction coefficient is set to be greater when a tendency for instability in the vehicle behavior is small than when the tendency for instability in the vehicle behavior is large. 6. The vehicle brake control device according to claim 1 , wherein the tendency for instability in the vehicle behavior is determined such that the smaller a difference between a target yaw rate, which is set according to a condition of vehicle operation, and a yaw rate of the vehicle, the smaller the tendency for instability in the vehicle behavior becomes.
Assignees
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Classifications
determining control parameters related to vehicle stability used in the regulation, e.g. by calculations involving measured or detected parameters · CPC title
- B60T8/1764Primary
Regulation during travel on surface with different coefficients of friction, e.g. between left and right sides, mu-split {or between front and rear} · CPC title
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- What does patent US9751509B2 cover?
- A vehicle brake control device performs select-low anti-lock brake control. In the select-low anti-lock brake control, in a decrease period, in which braking force on a first wheel that is one of left and right wheels that has a lower wheel speed is decreased, braking force on a second wheel that is one of the left and right wheels that has a higher wheel speed is also decreased. In an increase…
- Who is the assignee on this patent?
- Advics Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60T8/1764. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 05 2017 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).