Double disc
Automotive Dictionary

Double disc

Double disc

It is a power steering system developed by Fiat, equipped with two control logic circuits and is able to operate with the power generated by a small electric motor instead of the power generated by a hydraulic pump driven directly from the engine.

It adjusts the steering response to match the vehicle speed, for example, as the speed increases, the power amplifier decreases proportionally and the steering effort increases, resulting in more precise driving at high speeds. The system becomes lighter at low speeds. steering that requires the driver to reduce effort while driving in town and parking maneuvers.

In addition, the driver can select two operating modes of the system simply by pressing a button on the dashboard (CITY mode), which can further increase assistance power, but which is excluded at speeds above 70 km / h for safety reasons.

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