US 12,325,391 B2
Device and method for controlling a braking system, braking system and vehicle
Thomas Toelge, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/928,001
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed May 21, 2021, PCT No. PCT/EP2021/063660
§ 371(c)(1), (2) Date Nov. 28, 2022,
PCT Pub. No. WO2021/239619, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 10 2020 114 568.3 (DE), filed on May 29, 2020.
Prior Publication US 2023/0211764 A1, Jul. 6, 2023
Int. Cl. B60T 13/66 (2006.01); B60T 7/04 (2006.01); B60T 8/172 (2006.01)
CPC B60T 13/662 (2013.01) [B60T 8/172 (2013.01); B60T 7/042 (2013.01); B60T 2201/03 (2013.01); B60T 2220/04 (2013.01); B60T 2270/82 (2013.01); B60T 2270/88 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for controlling a braking system of a vehicle, the braking system comprising
a master brake cylinder installation having at least one cylinder and at least one piston, the piston being movably mounted in the cylinder, wherein when activated by a brake pedal, the piston is configured for pressurizing fluid located in the cylinder;
one or more braking installations which are configured for impinging one or more wheels of the vehicle with a braking force; and
a brake assistant installation which is switchable between an activated state and a deactivated state, wherein in the activated state, the brake assistant installation increases the braking force of the braking installations in comparison to the deactivated state; and wherein
the device comprises:
a path sensor installation which is configured for detecting a position of the brake pedal and/or of the piston activated by the brake pedal at a plurality of points in time;
a pressure sensor installation which is configured for detecting a pressure in the fluid situated in the cylinder at a plurality of points in time; and
a control installation which is configured for setting the brake assistant installation to the activated state when a temporal variation of the detected position exceeds a predefined path gradient threshold value, wherein
the path gradient threshold value is predefined as a function of a variation of the detected pressure.