Brake system
US-2018354484-A1 · Dec 13, 2018 · US
Method for controlling a hydraulic braking system
US11077836B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11077836-B2 |
| Application number | US-201916382979-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 12, 2019 |
| Priority date | May 30, 2018 |
| Publication date | Aug 3, 2021 |
| Grant date | Aug 3, 2021 |
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- Title
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Abstract
Official abstract text for this publication.
In a method for controlling a hydraulic braking system, wherein the braking system includes a hydraulic pump that is driven by an electric motor so as to generate a volume of fluid flow for the hydraulic braking system. the electric motor is controlled in such a manner that fluid pulsation in the hydraulic braking system is counteracted by means of modulating a rotational speed of the electric motor. The modulation is generated by means of the control procedure. Furthermore, a device is designed and configured so as to perform the method.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for controlling a hydraulic braking system comprising: controlling an electric motor, which drives a hydraulic pump so as to generate a volume of flow in the hydraulic braking system, in such a manner that fluid pulsation in the hydraulic braking system is counteracted by modulating a rotational speed of the electric motor in a sinusoidal manner, said modulation being generated by a control procedure. 2. The method according to claim 1 , wherein the rotational speed of the electric motor is modulated during one rotation. 3. The method according to claim 1 , wherein the rotational speed of the electric motor is modulated in dependence upon a rotor position. 4. The method according to claim 1 , wherein the rotational speed of the electric motor is modulated by taking into consideration an approach using Fourier modes. 5. The method according to claim 1 , wherein the control procedure is configured as a control procedure of a brushless DC motor. 6. The method according to claim 1 , further comprising at least one of: determining a rotor position of the electric motor; determining a position of an outlet valve; defining a desired rotational speed of the electric motor so as to counteract fluid pulsation in the hydraulic braking system; and controlling the electric motor so as to set the desired rotational speed. 7. A control unit configured to execute program instructions stored in a non-transitory memory to: control an electric motor, which drives a hydraulic pump so as to generate a volume of flow in a hydraulic braking system, in such a manner that fluid pulsation in the hydraulic braking system is counteracted by modulating a rotational speed of the electric motor in a sinusoidal manner, said modulation being generated by a control procedure. 8. A hydraulic braking system comprising: an electric motor; a hydraulic pump driven by the electric motor so as to generate a volume of flow in the hydraulic braking system; and a control unit that is configured to control the electric motor in such a manner that fluid pulsation in the hydraulic braking system is counteracted by modulating a rotational speed of the electric motor in a sinusoidal manner, said modulation being generated by a control procedure, wherein the braking system does not comprise a hydraulic damping component configured to counteract fluid pulsation in the hydraulic braking system. 9. The hydraulic braking system of claim 8 , wherein the braking system does not include a hydraulic low-pass filter configured to counteract the fluid pulsation in the hydraulic braking system.
Assignees
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Classifications
in hydraulic systems or parts thereof · CPC title
characterised by specified functions of the control system components · CPC title
Part of the system directly actuated by booster pressure · CPC title
Arrangements for controlling torque ripple, e.g. providing reduced torque ripple · CPC title
- B60T17/22Primary
Devices for monitoring or checking brake systems; Signal devices · CPC title
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Frequently asked questions
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- What does patent US11077836B2 cover?
- In a method for controlling a hydraulic braking system, wherein the braking system includes a hydraulic pump that is driven by an electric motor so as to generate a volume of fluid flow for the hydraulic braking system. the electric motor is controlled in such a manner that fluid pulsation in the hydraulic braking system is counteracted by means of modulating a rotational speed of the electric …
- Who is the assignee on this patent?
- Bosch Gmbh Robert
- 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 Aug 03 2021 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).