Method for adapting the control strategy of a slip-control system of a vehicle in a μ-split-situation

US10315634B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Henning Kerber · Darmstadt, DE
• Mario Roszyk · Usingen, DE
• Jochen Müller · Hersbruck, DE
• Arne Cornils · Frankfurt, DE
• Dieter Burkhard · Pirmasens, DE

Key dates

• Filing date: Feb 15, 2017
• Grant date: Jun 11, 2019
• Expiry date: Feb 15, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2210/124
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The disclosure relates to a method for adapting a control strategy of a slip-control system of a brake system of a vehicle in a μ-split situation, in which different wheel-specific brake pressures, are set at opposite wheels of a vehicle axle. The resulting brake pressure difference is limited. In some examples, to generate a brake pressure request, a maximum pressure difference value deviating from a reference pressure difference with a predefined tolerance value is determined on a wheel-specific basis for the wheels lying opposite one another. The reference pressure difference corresponds to the value of the current low-pass-filtered brake pressure difference, and the brake pressure request for each wheel is determined as a minimum of the wheel-specific brake pressure determined from the control strategy of the slip-control system, and from the sum of the average brake pressure of the wheel lying opposite and the wheel-specific maximum pressure difference value.