Method for providing haptic information to the driver of a motor vehicle

US9415758B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Stefan Drumm · Saulheim, DE
• Steffen Linkenbach · Eschborn, DE
• Marco Besier · Ramschied, DE
• Jürgen Böhm · Obertshausen, DE
• Georg Roll · Heusenstamm, DE

Key dates

• Filing date: Mar 20, 2013
• Grant date: Aug 16, 2016
• Expiry date: Mar 30, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G08B1/00
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a method for providing haptic information to the driver of a motor vehicle, equipped with a brake-by-wire brake system, about the operating state of the brake system, in which method the brake pedal characteristic is generated by a pedal travel simulator, in the form of a functional relationship between the brake pedal opposing force and the brake pedal travel, and is modified as a function of an operating state. In order to provide the driver with the haptic information channel via which electronically controlled information can be communicated to the driver during braking, without the impression of a defect arising, the invention proposes that a basic brake pedal characteristic is generated by a passive simulator spring which assigns pedal travel, on which pedal return travel transporting the haptic information is superimposed, to a given pedal force in an unchanging, constant relationship.