Volvo Lastvagnar Ab

Peter Lingman

Anders Eriksson

Mats Sabelström

Jan-Inge Svensson

Bengt Erlano Terborn

Sören Bystedt

Jens Samsioe

Andreas Johnsson

A system and a method are provided for controlling a foundation brake of a vehicle having at least one foundation brake device, wherein the usability of the foundation brake is limited to a predetermined total application-time of the foundation brake within a predetermined time interval.

System and method for controlling a foundation brake

A system for controlling a foundation brake of a vehicle. The system includes an adaptive cruise control (ACC) device, an arrangement to detect or predict excessive use of the foundation brake and an arrangement to disengage the ACC device on detection of excessive use of the foundation brake of the vehicle.

System for controlling a foundation brake of a vehicle

The invention relates to a method for measuring and estimating a brake factor in a vehicle brake system, said vehicle including a towing vehicle and a trailer having a plurality of wheel axles, wherein said method includes: initiating a controlled braking manoeuvre involving at least a first wheel axle and a second wheel axle; and obtaining values representing said brake factor for said wheel first wheel axle and said second wheel axle by a control unit which is provided with a brake adaptation function to obtain a brake balance between said towing vehicle and said trailer. The method furthermore includes: braking, in a forced manner, said first wheel axle when retardation of said vehicle is requested; estimating the brake factor for said first wheel axle by determining the brake pressure and braking torque for said first wheel axle; providing a transition phase after which said second wheel axle is braked, in a forced manner, and estimating the brake factor for said second wheel axle by determining the brake pressure and braking torque for said second wheel axle. An arrangement for measuring and estimating the brake factor in a vehicle brake system is also disclosed.

Method and arrangement for measuring and estimating a brake factor in a vehicle brake system

Motor vehicle with an internal combustion engine, a transmission and at least a first and a second brake device. The first brake device acts directly on at least some of the wheels of the vehicle and the second brake device acts on the driving wheels of the vehicle via the transmission and is arranged before the clutch device of the transmission. The first brake device is activated when the second brake device is in an activated state and a shifting operation is started.

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Hindås, Sweden

Peter Lingman