Alfa Romeo 147 GTA owners manual page 137

text version of content this owner's manual page from owners manual to the vehicle Alfa Romeo 147 GTA, year of production 2000 - 2010:

VDC SYSTEM WARNING HOW THE VDC SYSTEM WORKS (Vehicle Dynamics Control) The performance of the system, in terms of activeThe VDC system is engaged automatical- The VDC is an electronic system that con-safety should not induce the driverly when the car is started and cannot be trols vehicle stability, intervening on the dri-to take pointless and unnecessaryswitched off. ving torque and braking the wheels in a dif-risks. The style of driving must inThe basic components of the VDC system any case always be adapted to theare: ferentiated manner, in the lack of grip, it conditions of the road surface, vis- helps to bring the car back to the correct – an electronic control unit that process- direction. ibility and traffic. The responsibil-es the signals received from the various sen- ity for road safety is always and When travelling the car is subjected to lat-in any case the driver’s.sors and brings about the most appropriate eral and longitudinal forces which can be strategy; controlled by the driver as long as the tyres – a sensor that detects the position of the GETTING TO KNOW YOUR CARoffer adequate roadholding; when this fallssteering wheel; The VDC system helps the driver to keep below the minimum level, the car begins to divert from the course required by the dri-the car under control in the event of a loss– four sensors that detect the turning ver. of tyre grip. speed of each wheel; The forced induced by the VDC system to– a sensor that detects rotation of the car Especially when travelling on an uneven around its vertical axis; surface (such as paving, or due to the pres-control the loss of vehicle stability always ence of water, ice or soil), changes in speeddepend on the grip between the tyre and the road surface. – a sensor that detects lateral acceleration (acceleration or braking) and/or course (centrifugal force). (bends or the need to avoid obstacles) may cause the tyres to lose grip. The heart of the VDC system is the VDC When the sensors detect the conditions control unit, which with the data supplied that would lead to skidding, the VDC system by the sensors installed on the car calculates intervenes on the engine and on the brakes the centrifugal forces generated when the producing a stabilising torque. car is cornering. The yawing sensor, which y, de-originates from the aeronautical industr tects the rotations of the car around its own vertical axis. The centrifugal forces gener- ated when the car is cornering are detect- ed by a highly sensitive lateral acceleration 136 sensor.

owners manual Alfa Romeo 147 GTA

owners manual Alfa Romeo 147 GTA - year of production: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 - Alfa Romeo 147 GTA owners manual EN