Granted Patent B2

US 12,351,144 · App. 17/997,529 · Granted Jul 8, 2025

Inventors: Friedbert Roether (Cleebronn, DE); Thilo Schmauder (Tamm, DE)

Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH

B60T17/088B60T17/081

Abstract

Claims (70)

1. A housing device for a brake device for a vehicle, comprising:

a piston chamber for accommodating a plunger, which is movable linearly in the piston chamber by an actuation by a driver; and

a sensor chamber, which is separated from the piston chamber, and which includes a sensor unit, which is configured to detect a position and/or a movement of the plunger in the piston chamber by detecting a magnetic field of a transmitter element of the plunger, to effect a braking operation of the vehicle;

wherein the transmitter element is arranged at an outer wall of a plunger piston section and includes at least one magnet for generating the magnetic field, and wherein the at least one magnet is arranged at the plunger piston section facing the sensor chamber,

wherein the piston chamber and the sensor chamber are fluidically separated from each other by a partition,

wherein the sensor chamber includes a cover, which forms an outer wall of the housing device and/or is formed to be removable, and

wherein the piston chamber includes a compressed air connection opening, which opens into a lateral wall of the piston chamber situated opposite the sensor chamber.

2. The housing device of claim 1 , wherein the sensor unit includes at least one Hall sensor and/or reed switch that is configured to sensor-identify a magnetic field emanating from the plunger, to detect the position and/or the movement of the plunger.

3. The housing device of claim 1 , wherein the piston chamber includes a plunger opening for accommodating a plunger piston section of the plunger, and wherein the sensor chamber is arranged at an end of the piston chamber facing the plunger opening.

4. The housing device of claim 1 , wherein the piston chamber and the sensor chamber are fluidically and/or hermetically separated from each other by a partition.

5. The housing device of claim 4 , wherein a wall thickness of the partition is smaller than a housing wall thickness of a housing section of the housing device adjacent to the partition, and/or wherein the partition includes a non-ferromagnetic material.

6. A plunger for a brake device, wherein a plunger is arranged or arrangeable in a piston chamber of a housing device, comprising:

a transmitter element for determining the position and/or movement of the plunger in the piston chamber;

wherein the housing device includes:

a piston chamber for accommodating the plunger, which is movable linearly in the piston chamber by an actuation by a driver; and

a sensor chamber, which is separated from the piston chamber, and which includes a sensor unit, which is configured to detect a position and/or a movement of the plunger in the piston chamber by detecting magnet of the transmitter element to effect a braking operation of the vehicle;

wherein the plunger includes a plunger piston section for actuation by the driver, a control piston section and/or a piston spring arranged between the plunger piston section and the control piston section, and

wherein the transmitter element is arranged at an outer wall of the plunger piston section and includes at least one magnet for generating the magnetic field, and wherein the at least one magnet is arranged at the plunger piston section facing the sensor chamber,

wherein the piston chamber and the sensor chamber are fluidically separated from each other by a partition,

wherein the sensor chamber includes a cover, which forms an outer wall of the housing device and/or is formed to be removable, and

wherein the piston chamber includes a compressed air connection opening, which opens into a lateral wall of the piston chamber situated opposite the sensor chamber.

7. A brake device, comprising:

a housing device, including:

a piston chamber for accommodating a plunger, which is movable linearly in a piston chamber by an actuation by a driver; and

a sensor chamber, which is separated from the piston chamber, and which includes a sensor unit, which is configured to detect a position and/or a movement of the plunger in the piston chamber by detecting a magnetic field of a transmitter element of

the plunger, to effect a braking operation of the vehicle; and

the plunger, which is arranged or arrangeable in the housing device, wherein the plunger includes:

a plunger piston section for actuation by the driver, a control piston section and/or a piston spring arranged between the plunger piston section and the control piston section;

wherein the transmitter element is arranged at an outer wall of the plunger piston section and includes at least one magnet for generating the magnetic field, and wherein the at least one magnet is arranged at the plunger piston section facing the sensor chamber,

wherein the piston chamber and the sensor chamber are fluidically separated from each other by a partition,

wherein the sensor chamber includes a cover, which forms an outer wall of the housing device and/or is formed to be removable,

wherein the piston chamber includes a compressed air connection opening, which opens into a lateral wall of the piston chamber situated opposite the sensor chamber.

8. A method for operating a brake device, the method comprising:

detecting a position or movement of a plunger in a piston chamber, wherein the brake device includes a housing device, including:

a piston chamber for accommodating the plunger, which is movable linearly in the piston chamber by an actuation by a driver; and

a sensor chamber, which is separated from the piston chamber, and which includes a sensor unit, which is configured to detect a position and/or a movement of the plunger in the piston chamber by detecting a magnetic field of a transmitter element of the plunger, to effect a braking operation of the vehicle; and

the plunger, which is arranged or arrangeable in the housing device, wherein the plunger includes:

a plunger piston section for actuation by the driver, a control piston section and/or a piston spring arranged between the plunger piston section and the control piston section; and

outputting a sensor signal by utilizing the position or movement detected in the step of detecting, wherein the sensor signal is configured to effect the braking operation of the vehicle;

wherein the transmitter element is arranged at an outer wall of the plunger piston section and includes at least one magnet for generating the magnetic field, and wherein the at least one magnet is arranged at the plunger piston section facing the sensor chamber,

wherein the piston chamber and the sensor chamber are fluidically separated from each other by a partition,

wherein the sensor chamber includes a cover, which forms an outer wall of the housing device and/or is formed to be removable,

wherein the piston chamber includes a compressed air connection opening, which opens into a lateral wall of the piston chamber situated opposite the sensor chamber.

9. An apparatus, comprising:

a device configured for operating a brake device, by performing the following:

detecting a position or movement of a plunger in a piston chamber, wherein the brake device includes:

a housing device, including:

the piston chamber for accommodating the plunger, which is movable linearly in the piston chamber by an actuation by a driver; and

a sensor chamber, which is separated from the piston chamber, and which includes a sensor unit, which is configured to detect a position and/or a movement of the plunger in the piston chamber by detecting a magnetic field of a transmitter element of the plunger, to effect a braking operation of the vehicle; and

the plunger, which is arranged or arrangeable in the housing device, wherein the plunger includes the transmitter element for determining the position and/or movement of the plunger in the piston chamber; and

a plunger piston section for actuation by the driver, a control piston section and/or a piston spring arranged between the plunger piston section and the control piston section; and

outputting a sensor signal by utilizing the position or movement detected in the step of detecting, wherein the sensor signal is configured to effect the braking operation of the vehicle;

wherein the transmitter element is arranged at an outer wall of the plunger piston section and includes at least one magnet for generating the magnetic field, and wherein the at least one magnet is arranged at the plunger piston section facing the sensor chamber,

wherein the piston chamber and the sensor chamber are fluidically separated from each other by a partition,

wherein the sensor chamber includes a cover, which forms an outer wall of the housing device and/or is formed to be removable, and

wherein the piston chamber includes a compressed air connection opening, which opens into a lateral wall of the piston chamber situated opposite the sensor chamber.

10. A non-transitory computer readable medium having a computer program, which is executable by a processor, comprising:

a program code arrangement having program code for operating a brake device, by performing the following:

detecting a position or movement of a plunger in a piston chamber, wherein the brake device includes a housing device, including:

the piston chamber for accommodating a plunger, which is movable linearly in the piston chamber by an actuation by a driver; and

a sensor chamber, which is separated from the piston chamber, and which includes a sensor unit, which is configured to detect a position and/or a movement of the plunger in the piston chamber by detecting a magnetic field of a transmitter element of the plunger, to effect a braking operation of the vehicle; and

the plunger, which is arranged or arrangeable in the housing device, wherein the plunger includes:

the transmitter element for the sensor unit for determining the position and/or movement of the plunger in the piston chamber; and

a plunger piston section for actuation by the driver, a control piston section and/or a piston spring arranged between the plunger piston section and the control piston section; and

outputting a sensor signal by utilizing the position or movement detected in the step of detecting, wherein the sensor signal is configured to effect the braking operation of the vehicle;

wherein the transmitter element is arranged at an outer wall of the plunger piston section and includes at least one magnet for generating the magnetic field, and wherein the at least one magnet is arranged at the plunger piston section facing the sensor chamber,

wherein the piston chamber and the sensor chamber are fluidically separated from each other by a partition,

wherein the sensor chamber includes a cover, which forms an outer wall of the housing device and/or is formed to be removable, and

wherein the piston chamber includes a compressed air connection opening, which opens into a lateral wall of the piston chamber situated opposite the sensor chamber.

11. The computer readable medium of claim 10 , wherein the sensor unit includes at least one Hall sensor and/or reed switch that is configured to sensor-identify the magnetic field emanating from the transmitter element of the plunger, to detect the position and/or the movement of the plunger.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (24)