2751647 - E7045 ELECTRIC STEERING - DESCRIPTION (Smart gearbox)

Description

The servo assistance is ensured by an electric motor located in the area of the dashboard which transfers the torque produced directly to a toothed wheel coaxial to the steering column.The input torque supplied by the driver is "read" by a mechanical sensor that is extremely sensitive and precise.The driver can chose between two driving programmes (City and Normal) that can be selected using the button in the dashboard. The first ensures maximum comfort during parking manoeuvres, with minimum effort on the steering wheel. The second provides an average peformance whilst parking but allows excellent progressiveness if steering wheel effort, even at low speeds, especially in poor road grip conditions. Both programmes provide assistance that is variable depending on the speed of the vehicle (gradual power assistance) without a compromise between peformance when parking and the quality of steering control whilst driving.The electronic control unit also contains different sets of City/Normal programmes in its memory which are automatically selected depending on the engine type (the information is communicated by the body computer). The servo assistance can be adapted to the weight of the vehicleThe power supply to the electric steering control unit is protected by specific fuses housed inside the engine compartment junction unit.