Brake system and method for operating same

摘要

A brake system for motor vehicles of “brake-by-wire” type without a brake booster, having a hydraulic activation device which can be activated by means of a brake pedal and to which wheel brakes are connected, and a simulation device which can be activated hydraulically and has at least one elastic element which gives the driver of a vehicle a pleasant pedal sensation is intended to have a functional capacity which can be checked during the normal braking function and to give the driver a pedal sensation which is familiar from a conventional hydraulic brake system. For this purpose, the activation device is connected via a hydraulic connection to the simulation device, wherein the hydraulic connection is connected via an electrically controllable check valve to a pressure medium reservoir which is at atmospheric pressure.

主权项

1. A brake system of a brake-by-wire type for motor vehicles, comprising a hydraulic actuation device that can be actuated by means of a brake pedal, to which actuation device are connected a plurality of wheel brakes, and having a hydraulically actuated simulation device having at least an elastic element that conveys to the vehicle driver a comfortable pedal sensation, the actuation device connected by way of a hydraulic connection to the simulation device, wherein the hydraulic connection is connected by way of an electrically controllable shut-off valve to a pressure medium container that is subjected to atmospheric pressure wherein the simulation device is only connected with the brake pedal after the shut-off valve is closed.