Electric booster for autonomous vehicle having dual actuator
US-2021354677-A1 · Nov 18, 2021 · US
Method for operating an electromechanical service brake of a vehicle
US2025091555A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025091555-A1 |
| Application number | US-202418884564-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 13, 2024 |
| Priority date | Sep 15, 2023 |
| Publication date | Mar 20, 2025 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
In a method for operating a electromechanical service brake of a vehicle, wherein the electromechanical service brake comprises a servomotor, which moves a component of the service brake in order to generate a braking force, and a motor-position sensor, which registers a displacement-specific position of the servomotor, a failure of the motor-position sensor is registered, and a feedback control of the servomotor by a motor-position signal from the motor-position sensor is replaced by triggering the servomotor on the basis of at least one servomotor-specific or vehicle-dynamics-specific parameter that is independent of the motor-position sensor.
First claim
Opening claim text (preview).
1 . A method for operating an electromechanical service brake of a vehicle, wherein the electromechanical service brake includes a servomotor, which moves a component of the service brake in order to generate a braking force, and a motor-position sensor, which registers a displacement-specific position of the servomotor, with the method comprising the following steps: registering a failure of the motor-position sensor and replacing a feedback control of the servomotor by a motor-position signal from the motor-position sensor by a triggering of the servomotor on the basis of at least one servomotor-specific or vehicle-dynamics-specific parameter that is independent of the motor-position sensor. 2 . The method according to claim 1 , wherein the servomotor-specific parameter is a motor current of the servomotor. 3 . The method according to claim 1 , wherein the at least one vehicle-dynamics-specific parameter is an actual vehicle deceleration, an actual vehicle speed, an actual wheel-slip of a wheel of the vehicle, and/or an actual yaw-rate of the vehicle. 4 . The method according to claim 1 , wherein the triggering is an open-loop control of the servomotor on the basis of the at least one servomotor-specific or vehicle-dynamics-specific parameter. 5 . The method according to claim 1 , wherein the triggering is a feedback control of the servomotor on the basis of the at least one servomotor-specific or vehicle-dynamics-specific parameter. 6 . The method according to claim 1 , wherein the at least one servomotor-specific or vehicle-dynamics-specific parameter is processed to create a replacement signal which is passed to the servomotor. 7 . The method according to claim 6 , wherein the electromechanical service brake comprises a request unit which receives an actuation signal and which generates from the actuation signal a request signal which is forwarded to the servomotor for the purpose of triggering. 8 . The method according to claim 7 , wherein the request signal is modified by the replacement signal. 9 . The method according to claim 6 , wherein the electromechanical service brake includes a driver unit which is connected to at least one sensor in the vehicle and receives from this sensor a sensor signal relating to the at least one servomotor-specific or vehicle-dynamics-specific parameter, the sensor signal entering into the generation of the replacement signal. 10 . The method according to claim 7 , wherein the processing of the at least one servomotor-specific or vehicle-dynamics-specific parameter to create the replacement signal takes place in the request unit or in the driver unit of the electromechanical service brake. 11 . The method according to claim 2 , wherein the at least one vehicle-dynamics-specific parameter is an actual vehicle deceleration, an actual vehicle speed, an actual wheel-slip of a wheel of the vehicle, and/or an actual yaw-rate of the vehicle. 12 . The method according to claim 8 , wherein the electromechanical service brake includes a driver unit which is connected to at least one sensor in the vehicle and receives from this sensor a sensor signal relating to the at least one servomotor-specific or vehicle-dynamics-specific parameter, the sensor signal entering into the generation of the replacement signal. 13 . The method according to claim 12 , wherein the processing of the at least one servomotor-specific or vehicle-dynamics-specific parameter to create the replacement signal takes place in the request unit or in the driver unit of the electromechanical service brake.
Assignees
Inventors
Classifications
automatically taking corrective action · CPC title
using electrical circuitry · CPC title
- B60T8/171Primary
Detecting parameters used in the regulation; Measuring values used in the regulation · CPC title
Back-up · CPC title
Vehicle reference speed; Vehicle body speed · CPC title
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Frequently asked questions
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- What does patent US2025091555A1 cover?
- In a method for operating a electromechanical service brake of a vehicle, wherein the electromechanical service brake comprises a servomotor, which moves a component of the service brake in order to generate a braking force, and a motor-position sensor, which registers a displacement-specific position of the servomotor, a failure of the motor-position sensor is registered, and a feedback contro…
- Who is the assignee on this patent?
- Zf Active Safety Gmbh
- What technology area does this patent fall under?
- Primary CPC classification B60T8/171. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Mar 20 2025 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).