Haptic feedback for decoupled brake system
US-10800389-B2 · Oct 13, 2020 · US
Method of optimizing meterability of brake force in ABS braking
US12304449B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12304449-B2 |
| Application number | US-202318223610-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 19, 2023 |
| Priority date | Sep 6, 2022 |
| Publication date | May 20, 2025 |
| Grant date | May 20, 2025 |
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Abstract
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A method for optimizing the meterability of brake force in an ABS braking with a brake-by-wire brake system. The method includes various steps. First, a driver brake request is sensed by a pedal force simulator. In addition, a trigger point (A) of an ABS braking is recognized. In the case of a recognized ABS braking, there is a correction of the sensed driver brake request such that, upon recognizing the trigger point (A) during a reduction of the sensed driver brake request, the corrected driver brake request is reduced to the extent that ABS braking is no longer present. The corrected driver brake request is subsequently implemented by building up a corresponding brake pressure in a brake device of the brake system.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for optimizing meterability of brake force in ABS braking with a brake-by-wire brake system, said method comprising the steps of: sensing a driver brake request by way of a pedal force simulator, identifying a trigger point (A) of the ABS braking, correcting the sensed driver brake request such that, upon identifying the trigger point (A) during a reduction of the sensed driver brake request, the corrected driver brake request is reduced to an extent that ABS braking is no longer present, and implementing the corrected driver brake request by building up a corresponding brake pressure in a brake device of the brake system. 2. The method according to claim 1 , wherein the correction of the sensed driver brake request is carried out such that, after identifying the trigger point (A), the corrected driver brake request is not increased via the sensed driver brake request at the trigger point (A). 3. The method according to claim 2 , wherein the correction of the sensed driver brake request is carried out such that, after sensing a certain limit pedal stroke, a difference between the corrected driver brake request and the sensed driver brake request decreases. 4. The method according to claim 2 , wherein the correction of the sensed driver brake request is carried out such that, after a certain difference between the sensed and corrected driver brake request, the corrected driver brake request is formed such that the difference between the corrected driver brake request and the sensed driver brake request is reduced. 5. The method according to claim 1 , wherein the reduction of the corrected driver brake request is carried out to a same extent as the reduction of the driver brake request, starting from the trigger point (A). 6. The method according to claim 1 , wherein, in a sensed maximum pedal stroke, the corrected driver brake request corresponds to the sensed driver brake request. 7. The method according to claim 1 , wherein, after identifying the trigger point (A), the brake pedal is vibrated by way of a dedicated mechanical actuator. 8. The method according to claim 1 , wherein, after identifying the trigger point (A), an optical and/or audible and/or haptic feedback is provided to a driver. 9. The method according to claim 1 , wherein the sensing of the driver brake request is carried out by measuring a pedal force and/or a pedal stroke and/or a pedal angle. 10. A computer-implemented method for optimizing meterability of brake force in ABS braking with a brake-by-wire brake system, comprising the method steps according to claim 1 .
Assignees
Inventors
Classifications
Brake-by-Wire, EHB · CPC title
ABS control systems · CPC title
Pedal travel sensor, stroke sensor; Sensing brake request · CPC title
- B60T17/22Primary
Devices for monitoring or checking brake systems; Signal devices · CPC title
- B60T8/4081Primary
Systems with stroke simulating devices for driver input (B60T8/4077 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US12304449B2 cover?
- A method for optimizing the meterability of brake force in an ABS braking with a brake-by-wire brake system. The method includes various steps. First, a driver brake request is sensed by a pedal force simulator. In addition, a trigger point (A) of an ABS braking is recognized. In the case of a recognized ABS braking, there is a correction of the sensed driver brake request such that, upon recog…
- Who is the assignee on this patent?
- Porsche Ag
- What technology area does this patent fall under?
- Primary CPC classification B60T17/22. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 20 2025 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).