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ACE - Active Cornering Enhancement
A feature first found on Land Rover vehicles, the Active Cornering Enhancement (ACE) is a system that reduces body roll during cornering. A pair of accelerometers are used to detect the angle of body lean and to instruct the ACE computer to counteract these movements by applying pressure to the vehicle's torsion bars via actuators which are hydraulically controlled.
On the Land Rover Discovery, the ACE system can counteract up 1 g of lateral acceleration in less than a tenth of a second, thus helping the vehicle become more stable and responsive during hard cornering.