US 12,454,253 B2
Electromechanical brake device
Johann Jungbecker, Badenheim (DE); Andreas Kircher, Darmstadt (DE); Andreas Schirling, Darmstadt (DE); Peter Schack, Seligenstadt (DE); Paul Linhoff, Neu-Anspach (DE); Marco Besier, Bad Schwalbach (DE); and Jürgen Böhm, Oberneisen (DE)
Assigned to Continental Automotive Technologies GmbH, Hannover (DE)
Appl. No. 18/005,498
Filed by Continental Automotive Technologies GmbH, Hannover (DE)
PCT Filed Jul. 8, 2021, PCT No. PCT/DE2021/200091
§ 371(c)(1), (2) Date Jan. 13, 2023,
PCT Pub. No. WO2022/012722, PCT Pub. Date Jan. 20, 2022.
Claims priority of application No. 10 2020 208 769.5 (DE), filed on Jul. 14, 2020.
Prior Publication US 2023/0271593 A1, Aug. 31, 2023
Int. Cl. F16D 55/30 (2006.01); B60T 7/10 (2006.01); B60T 13/66 (2006.01); B60T 13/74 (2006.01); B60T 17/22 (2006.01); F16D 65/18 (2006.01); B60T 7/12 (2006.01)
CPC B60T 7/107 (2013.01) [B60T 13/662 (2013.01); B60T 13/741 (2013.01); B60T 17/22 (2013.01); B60T 7/122 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An electromechanical brake device with a brake caliper comprising:
a pressure piston mounted in the brake caliper such that it can move in a clamping direction;
an electromechanical clamping device for the brake device, wherein the clamping device is supported, on one side, on the pressure piston and is designed to apply to the pressure piston a force acting in the clamping direction;
at least one hydraulically sealed, fluid-filled cavity of the brake device, wherein the clamping device is supported, on another side, indirectly on the brake caliper via the fluid-filled cavity; and
a pressure sensor hydraulically connected to the fluid-filled cavity and designed to calculate the fluid pressure inside the fluid-filled cavity;
wherein the clamping device has an electromotively driven threaded spindle and a spindle nut, wherein the spindle nut is supported on the pressure piston in the clamping direction and wherein the threaded spindle is supported on the brake caliper counter to the clamping direction via the fluid-filled cavity; and
wherein the threaded spindle has a first longitudinal section with a first diameter and a second longitudinal section adjoining the first longitudinal section, wherein an external thread with a diameter greater than the first diameter is formed in the second longitudinal section.