Alfa Romeo GT owners manual page 137

text version of content this owner's manual page from owners manual to the vehicle Alfa Romeo GT, year of production 2004 - 2010:

When the sensors detect the conditions VDC SYSTEM HOW THE VDC (Vehicle Dynamics Control)that would lead to skidding, the system in-SYSTEM WORKS (on request for versions/ tervenes on the engine and on the brakesSystem is engaged automatically when the markets where applicable) producing a stabilising torque. car is started and cannot be switched off. The basic components of the system are: The VDC is an electronic system that con- – an electronic control unit that process- trols car stability, intervening on the drivingThe performance of the torque and braking the wheels in a differ-system, in terms of activees the signals received from the various sen- sors and brings about the most appropriate entiated manner, in the lack of grip, it helpssafety should not induce to bring the car back to the cor rect direction. the driver to take pointless and un-strategy; necessary risks. The style of dri- When travelling the car is subjected to lat- – a sensor that detects the position of the ving must in any case always be eral and longitudinal forces which can be steering wheels; adapted to the conditions of the GETTING TO KNOW YOUR CARcontrolled by the driver as long as the tyresroad surface, visibility and traffic.– four sensors that detect the turning offer adequate roadholding; when this fallsThe responsibility for road safetyspeed of each wheel; below the minimum level, the car begins is always and in any case the dri-– a sensor that detects rotation of the car to divert from the course required by the dri-ver’s. around its vertical axis; ver. Especially when travelling on an uneven – a sensor that detects lateral acceleration surface (such as paving, or due to the pres-System helps the driver to keep the car un-(centrifugal force). ence of water, ice or soil), changes in speedder control in the event of a loss of tyre grip. The heart of the system is the control unit, (acceleration or braking) and/or course which with the data supplied by the sensors (bends or the need to avoid obstacles) mayThe forces induced by the system to con-installed on the car calculates the centrifugal cause the tyres to lose grip. trol the loss of car stability always dependforces generated when the car is cornering. on the grip between the tyre and the roadThe yawing sensor, which originates from the surface. aeronautical industry, detects the rotations of the car around its own vertical axis. The centrifugal forces generated when the car is cornering are detected by a highly sensi- tive lateral acceleration sensor. 136

owners manual Alfa Romeo GT

owners manual Alfa Romeo GT - year of production: 2004, 2005, 2006, 2007, 2008, 2009, 2010 - Alfa Romeo GT owners manual EN