Wabco Gmbh & Co Ohg

Benno Meyer

Gerhard Ruhnau

Thomas Lenz

Tobias Munko

Immanuel Henken

Marcel Schlottmann

An improved method and associated system for controlling the brake system of a vehicle train including a tractor vehicle and a trailer vehicle, wherein a control device disposed in the tractor vehicle is adapted to initiate automatic braking of the trailer vehicle, and wherein the conditions of the driving roadway, especially the coefficient of friction, are taken into account in braking of the trailer vehicle. The intensity of braking of the trailer vehicle is reduced by the control device when a coefficient of friction smaller than a predetermined minimum value is detected between the vehicle train or parts thereof and the driving roadway. One application of the invention is in load trains equipped with means for preventing rollover or overturning.

Method for controlling the brake system of a vehicle train

An improved braking method and system for a vehicle equipped with an anti-lock brake system (ABS), a traction control or anti-slip regulation system (ASR) and one or more additional systems capable of effecting automatic braking of the vehicle independently of driver control, e.g., an adaptive cruise control system (ACC) or a rollover stability control system (RSC). Automatic braking takes place by admission of brake pressure to the drive axle. To detect a simultaneous braking demand of the driver, the wheel speeds of the non-driven axle or axles are compared with the wheel speeds of the drive axle or axles. If the wheel speeds of the non-driven axle(s) are less than the wheel speeds of the drive axle(s), or less than a vehicle reference speed, the brake pressure injected in response to driver demand is also fed to the brake cylinders of the wheels of the drive axle(s).

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Lauenau, Germany

Benno Meyer