Electromagnetic actuator assembly, pressure control module, and vehicle braking system having an electromagnetic actuator assembly

Patent metadata

Field	Value
Publication number	US-12594922-B2
Application number	US-202218715859-A
Country	US
Kind code	B2
Filing date	Dec 14, 2022
Priority date	Dec 15, 2021
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

An electromagnetic-actuator (EA) assembly includes a first EA having a first coil-arrangement (CA) with a first coil-core (CC) and a first coil and having a first movable-magnetic-armature-body (MMAB) which is movable by a magnetic-field generated by the first CA from a first into a second position in which the first AB is attracted towards a first-surface, which is different from the first CC and arranged opposite the first AB, and contacts the first CC, and a second EA having a second CA with a second CC and a second coil and having a MMAB having a damping-device mounted on the second AB and which is movable by a magnetic-field generated by the second CA from a first into a second position in which the second AB is attracted towards a second-surface and abuts against the second-surface by the damping-device. The first and second surfaces are identical in construction.

First claim

The invention claimed is:

1 . An electromagnetic actuator assembly, comprising:
at least one first electromagnetic actuator having a first coil arrangement with at least one first coil core and a first coil which is arranged circumferentially about the first coil core, and having a moveable first armature body as a moveable actuator element, which is moveable by a magnetic field, which is generated by the first coil arrangement, from a first position to a second position, in which the moveable first armature body is magnetically attracted in a direction of a first surface and contacts a surface of the first coil core directly, the first surface being different from the surface of the first coil core and being on a separate part relative to the first coil core, and wherein the first surface is arranged opposite the moveable first armature body, and contacts the first coil core; and at least one second electromagnetic actuator, having a second coil arrangement with at least one second coil core and a second coil which is arranged circumferentially about the second coil core, and having a moveable second armature body as a moveable actuator element, which includes a second damping device which is mounted on the moveable second armature body and which is moveable by a magnetic field which is generated by the second coil arrangement from a first position to a second position, in which the moveable second armature body is magnetically attracted in a direction of a second surface and engages with the second surface via the second damping device; wherein the first surface and the second surface are configured with a mutually structurally identical configuration.

2 . The electromagnetic actuator assembly of claim 1 , wherein the first surface is configured on a first component of the first electromagnetic actuator and the second surface is configured on a second component of the second electromagnetic actuator, and wherein the first component and the second component are configured with a mutually structurally identical configuration.

3 . The electromagnetic actuator assembly of claim 2 , wherein the first component forms at least part of the first coil arrangement, and the second component forms at least part of the second coil arrangement.

4 . The electromagnetic actuator assembly of claim 2 , wherein the first component includes the first coil and the second component includes the second coil.

5 . The electromagnetic actuator assembly of claim 2 , wherein the first component includes the first coil core and the second component includes the second coil core.

6 . The electromagnetic actuator assembly of claim 1 , wherein the moveable first armature body is mounted by a first bearing assembly and the moveable second armature body is mounted by a second bearing assembly, which is configured in a structurally identical manner to the first bearing assembly.

7 . The electromagnetic actuator assembly of claim 1 , wherein the moveable first and the second armature bodies include plate-type armatures.

8 . The electromagnetic actuator assembly of claim 1 , wherein the first electromagnetic actuator includes a zero-current open actuator, which is a zero-current open valve element, and the second electromagnetic actuator is configured as a zero-current closed actuator, which is a zero-current closed valve element.

9 . The electromagnetic actuator assembly of claim 1 , wherein the first and second electromagnetic actuators are configured as an electromagnetic valve device having the first or second armature body as a respective valve element and which includes a respective magnetic valve.

10 . The electromagnetic actuator assembly of claim 1 , wherein the first and second electromagnetic actuators are respectively configured as a tilting armature valve.

11 . The electromagnetic actuator assembly of claim 1 , wherein the first and second electromagnetic actuators are respectively configured as a magnetic valve for a pressure control module of a vehicle.

12 . The electromagnetic actuator assembly of claim 1 , further comprising:
at least one third electromagnetic actuator having a third coil arrangement with at least one third coil core and a third coil which is arranged circumferentially about the third coil core; a moveable third armature body as a moveable actuator element, which includes a third damping device which is mounted on the moveable third armature body and which is moveable by a magnetic field, which is generated by the third coil arrangement, from a first position to a second position, in which the moveable third armature body is attracted in the direction of a third surface and engages with at least the third surface by the third damping device, at a coil body of the third coil arrangement; wherein the third surface is configured in a structurally identical manner to the first and second surface.

13 . The electromagnetic actuator assembly of claim 12 , wherein the electromagnetic actuator assembly is configured for a pressure control module of a vehicle braking system, and wherein the second electromagnetic actuator is configured as an inlet valve, the third electromagnetic actuator as an outlet valve, and the first electromagnetic actuator as a back-up valve.

14 . The electromagnetic actuator assembly of claim 13 , further comprising:
a control device, which is connectable to the first to third electromagnetic actuators for the respective actuation, energization and de-energization thereof; wherein the control device is configured such that the first electromagnetic actuator is energized at the start of a braking operation of the vehicle and is de-energized at the end of the braking operation of the vehicle, and the second and third electromagnetic actuators are respectively and repeatedly energized and de-energized between the start and end of braking, for the purposes of pressure modification during the braking of the vehicle.

15 . A pressure control module for a vehicle braking system, comprising:
an electromagnetic actuator assembly, including:
at least one first electromagnetic actuator having a first coil arrangement with at least one first coil core and a first coil which is arranged circumferentially about the first coil core, and having a moveable first armature body as a moveable actuator element, which is moveable by a magnetic field which is generated by the first coil arrangement from a first position to a second position, in which the moveable first armature body is magnetically attracted in a direction of a first surface and contacts a surface of the first coil core directly, the first surface being different from the surface of the first coil core and being on a separate part relative to the first coil core; and wherein the first surface is arranged opposite the moveable first armature body, and contacts the first coil core; and
at least one second electromagnetic actuator, having a second coil arrangement with at least one second coil core and a second coil which is arranged circumferentially about the second coil core, and having a moveable second armature body as a moveable actuator element, which includes a second damping device which is mounted on the second armature body and which is moveable by a magnetic field which is generated by the second coil arrangement from a first position to a second position, in which the second armature body is magnetically attracted in a direction of a second surface and engages with the second surface via the second damping device;
wherein the first surface and the second surface are configured with a mutually structurally identical configurati

Assignees

• Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Inventors

• Roether Friedbert
• Woerner Ralf
• Jensen Benjamin

Classifications

• H01F7/1607

  Armatures entering the winding · CPC title

• H01F7/081

  Magnetic constructions · CPC title

• F16K31/0675

  Electromagnet aspects, e.g. electric supply therefor · CPC title

• F16K31/0603

  Multiple-way valves · CPC title

• F16K31/0696

  Shock absorbing, e.g. using a dash-pot · CPC title