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Shortening waiting times and reducing the probability of a long wait are always the most critical problems for group control elevators. Hitachi has been striving for the development of control algorithms to solve these problems.
Efficient braking power and swift response is required in the braking systems of ultra high-speed, large-capacity traction machines.
The further the distance that elevators are required to travel, the more warping that occurs on the guide rails that are installed to ensure smooth operations and the more lateral vibration that appears in the elevator cars at high speeds.