Magnetorheological Fluid Technology

265Haptic Applications for Vehicles

the force reection algorithm generates the desired torque or force for the

MR knob to track.

The virtual environment is established by LabVIEW under consideration of

various in-vehicle functions within a real passenger vehicle. Figure9.10 shows

the virtual environment, which has the data display windows for input and out-

put measurements, and four in-vehicle function menus: heater/air conditioner,

entertainment, window, and seat. Each function has several sub-events, which

can be expressed by a tree menu with three levels as shown in Figure9.11.

After selecting the event in the virtual environment, the corre ...