Dynamic control system for regulating pressure applied to motor vehicle brakes
The hydraulic braking control device includes a system for regulating the pressure applied to the brakes w.r.t. values which are both measured and evaluated from the pressure in the brake cylinders (PS) and reference values. This is determined with the aid of an inverse hydraulic model which allows...
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Zusammenfassung: | The hydraulic braking control device includes a system for regulating the pressure applied to the brakes w.r.t. values which are both measured and evaluated from the pressure in the brake cylinders (PS) and reference values. This is determined with the aid of an inverse hydraulic model which allows determination of the time at which input and outlet valves should be opened. The braking pressure is applied in cycles, using a pump which applied a constant flow. The pressure is determined according to a specific mathematical formula, based on the measured pressure values in previous cycles and the valve operating times.
a) Système de régulation de la dynamique du freinage d'un véhicule, b) caractérisé en ce que, pour créer la pression de circuit de frein, on a une pompe mise en œuvre pour la montée en pression demandée et qui fournit alors un débit constant et la pression du circuit de frein (PK) de chaque circuit de frein est évaluée pour chaque circuit de frein selon les relations suivantes: (CF DESSIN DANS BOPI) relation vraie pour au moins l'un des deux freins de roue lors de la demande de montée en pression, et on a PKk + 1 = a4 x PKk + a5 + Pp r é d relation vraie par ailleurs. |
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