US 12,325,397 B2
Braking system with pedal feedback
Günther Hertlein, Kirchberg (DE); Michael Kurz, Pliezhausen (DE); and Bernhard Schweizer, Eutingen-Rohrdorf (DE)
Assigned to Dr. Ing. h.c. F. Porsche Aktiengesellschaft, (DE)
Filed by Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Stuttgart (DE)
Filed on Apr. 21, 2023, as Appl. No. 18/137,507.
Claims priority of application No. 10 2022 112 186.0 (DE), filed on May 16, 2022.
Prior Publication US 2023/0365105 A1, Nov. 16, 2023
Int. Cl. B60T 7/04 (2006.01); B60T 8/176 (2006.01); G05G 5/03 (2008.04)
CPC B60T 7/042 (2013.01) [B60T 8/176 (2013.01); G05G 5/03 (2013.01); B60T 2270/82 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A brake system for a motor vehicle, said brake system comprising:
a brake pedal configured to receive a braking request from a driver driving the motor vehicle and to forward the braking request to a braking apparatus, wherein the braking apparatus is configured to translate the braking request into a corresponding brake pressure and to transmit the brake pressure to brake actuators,
wherein the brake pedal is mechanically and/or hydraulically decoupled from the braking apparatus, and wherein the brake system has at least one mechanical actuator in the form of an unbalance motor and/or a magnetic plunger, and
wherein the at least one mechanical actuator is in communication with the brake pedal and is configured to induce the brake pedal to vibrate in the event of an anti-lock braking,
wherein the at least one mechanical actuator is configured to apply the vibrations in successive vibration packets, which successive vibration packets are separated by pauses, wherein the successive vibration packets each comprises a plurality of successive pulses in the form of a continuous sinusoidal wave pattern, and wherein a frequency of the successive pulses for each vibration packet is greater than a frequency of the successive vibration packets,
wherein a time duration of each pause between two successive vibration packets is a function of a strength of the anti-lock braking during the anti-lock braking event.