US 11,897,439 B2
Actuation device for a hydraulic actuation system, in particular a motor vehicle brake or an electrified clutch actuator, optionally with gear actuator
Heinz Leiber, Oberriexingen (DE); Thomas Leiber, Rogoznica (HR); and Carsten Hecker, Munich (DE)
Assigned to IPGATE AG, Pfaffikon (CH)
Filed by IPGATE AG, Pfäffikon (CH)
Filed on Dec. 2, 2022, as Appl. No. 18/074,192.
Application 18/074,192 is a continuation of application No. 17/153,186, filed on Jan. 20, 2021, granted, now 11,554,765.
Application 17/153,186 is a continuation of application No. 16/086,896, granted, now 10,933,853, previously published as PCT/EP2017/056567, filed on Mar. 20, 2017.
Claims priority of application No. 10 2016 105 232.9 (DE), filed on Mar. 21, 2016.
Prior Publication US 2023/0094770 A1, Mar. 30, 2023
Int. Cl. B60T 8/36 (2006.01); B60T 13/14 (2006.01); B60T 17/02 (2006.01); F16D 121/04 (2012.01); F16D 121/24 (2012.01)
CPC B60T 13/142 (2013.01) [B60T 8/368 (2013.01); B60T 17/02 (2013.01); F16D 2121/04 (2013.01); F16D 2121/24 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An activation device for a hydraulic activation system of a vehicle, the activation device including:
a connection for an actuation device in the form of a brake pedal or a clutch activation device,
a pressure supply device, driven by an electric motor drive in the form of a double-stroke piston pump, wherein the electric motor drive adjusts the double-stroke piston pump directly or via a transmission gear unit,
a piston-cylinder unit enabled to be activated by the activation device and hydraulically connected to a pressure medium reservoir vessel, and
an electronic control unit,
wherein the electric motor drive is arranged underneath a longitudinal axis of the piston-cylinder unit,
wherein both the piston-cylinder unit and the pressure supply device are arranged in a first housing produced in a continuous casting process, and
wherein the transmission gear unit comprises an epicyclic ball transmission in the form of a spindle drive.