US 12,344,206 B2
Hydraulic braking system, including a control system, and method for controlling said braking system
Elmar Hoffmann, Meinborn (DE); Jonas Lahnstein, Dornburg (DE); Boris Koeth, Weitersburg (DE); Frank Schmidt, Brodenbach (DE); and Harald Thelen, Niederfell (DE)
Assigned to ZF Active Safety GmbH, Koblenz (DE)
Filed by ZF Active Safety GmbH, Koblenz (DE)
Filed on Apr. 14, 2022, as Appl. No. 17/720,407.
Claims priority of application No. 102021110233.2 (DE), filed on Apr. 22, 2021.
Prior Publication US 2022/0340116 A1, Oct. 27, 2022
Int. Cl. B60T 13/58 (2006.01); B60L 7/26 (2006.01); B60T 13/14 (2006.01)
CPC B60T 13/586 (2013.01) [B60L 7/26 (2013.01); B60T 13/148 (2013.01); B60T 2270/604 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for operating a hydraulic braking system in a motor vehicle having a regenerative braking function first and second wheel brakes, wherein with respect to the at least second wheel brake carrying out a hydraulic free travel release to open an opening device of the at least second wheel brake such that, with respect to the at least second wheel brake, a hydraulic passage to an accumulator is released, thereby storing therein at least a volume fraction of a hydraulic fluid in the event of a displacement of the hydraulic fluid, and closing an isolation valve such that the at least one other wheel brake is hydraulically isolated when a generative braking force of an electrical machine is present or about to occur.