Passive Haptics: Pulsive Damping Brake for Greater Impulse Perception

We developed a passive haptic technique, using the brake of a DC motor, to create a greater perception of impulse force. We found that when using the brake of a DC motor, delivering two short pulses immediately prior to the main brake significantly increases the operator’s perception of impulse force. This finding was verified during our empirical assessment. In the experiment, all five participants reported that a damping brake with pulsive resistances delivered a larger resistance than that caused by a brake without pulsive changes. Our technique is applicable to passive haptic interfaces, which are inherently safe and energy-efficient.