Disney Tigger robot single leg squat 7 seconds

Scientists at Disney's labs have been doing some amazing work, but they don't always understand what they want to do. Recently, this lab has produced new products. This time it is a single-legged jumping robot that does not need external power supply. Some foreign media joked that Disney's ultimate goal is probably to make a "jumping tiger."

The Tigger Robot is only 30cm tall and weighs about 2kg. It is very light. It currently can only jump 19 times, to maintain a balance of 7 seconds. But researchers believe that after upgrading their computing power, it can jump longer.

Most hop robots are hydraulically powered, which means they need to be connected to a motor. The scientists at Disney Labs used a new type of drive, relying solely on battery power. This new energy supply mechanism is called LEAP (Linear Elastic Actuator in Parallel), which makes the Tigger robot's driver use two compression springs efficiently.

As shown in the figure below, the red cylindrical part in the middle of the LEAP system is called the VoiceCoil Actuator. The voice coil is a coil that passes the audio current and is an important part of the electrodynamic speaker vibration system. That's right, the voice coil driver uses almost the same technology as a normal speaker. In addition, the robot's torso is equipped with encoders, sensors, etc. to help it adjust the leg's angle during each jump to maintain balance.