Active Stabilizer Suspension System

By altering stabilizer bar stiffness, this system acts to reduce body tilt during cornering, keeping the vehicle more level during turns and improving handling, as opposed to the natural tendency of a vehicle to roll due to the lateral forces experienced during high-speed maneuvering.

[3] These sensors are tied to an electronic control unit (ECU), which in turn connects with actuators consisting of 46V DC brushless motors and reduction mechanisms.

[4] The system is activated when the vehicle enters a high-speed turn, and the sensors register vertical, longitudinal, and transverse forces which contribute to body lean and additional movements.

The reduction mechanism gears activate to adjust suspension rigidity, torquing the stabilizer bars and thus increasing sway resistance and reducing body roll movements.

[5] Developed jointly with Aisin, APSSS engineers found that compared with prior hydraulically actuated active suspension systems, which rely on hydraulic servomechanisms, the electric APSSS offered a faster response time (within 20 milliseconds)[6] and reduced energy consumption characteristics.