A Higher Standard of Precision
Mitsubishi Electric’s approach to elevator and escalator design and manufacturing mandates that the highest levels of engineering precision go into every aspect of our products. Applying IT-based tools that aid in developing artificial intelligence technology, our company consistently plays a leading role in the invention of products with improved performances and increased user convenience. This approach has made it possible for Mitsubishi Electric to become a pioneer of innovation and an industry trend-setter, developing game-changing products:
- Spiral Escalators - Mitsubishi Electric is the only company in the world to develop and manufacture a commercial-grade spiral (curved) escalator, with our first US installation occurring more than 28 years ago and still running smoothly, quietly and safely.
- World's Fastest Elevators - Located in the 632-meter Shanghai Tower in China, boasts the world's fastest lifts with a speed of 1,230 meters per minute, or 20.5 meters per second.
- World's Tallest Elevator - Also located in the Shanghai Center, the world's tallest elevator has a rise of over 1,897 feet.
- World's Fastest Double-Deck Elevators - The third record holder in the Shanghai Center, our double-deck elevators travel at approximately 1,968 feet per minute.
Elevator Research Tower – SOLAE –
Imagine building a skyscraper solely for the purpose of testing new elevator products. Mitsubishi Electric didn’t just imagine it, we actually built it. With a height equivalent to a 40-story building, SOLAE's role in elevator development includes conducting safety, comfort, ride and sound tests that cannot be done by a computer to ensure our products’ quality. With the demand for more high-speed, high-capacity elevators rising exponentially, Mitsubishi Electric’s SOLAE testing tower contributes to the development of high-quality, reliable elevators that fulfill these demands. Data gathered at SOLAE is directly funneled into future elevator development ensuring that our company remains at the forefront of technological advancement.
Airflow Analysis Technology
The large volume of air pushed by an elevator traveling at high speed can create unpleasant noise inside the passenger car. Two high-speed elevators passing each other in a common hoistway creates forces that need to be fully understood before they can be harnessed into a quieter and more energy-efficient elevator installation. Mitsubishi Electric's analysis technology displays a visual demonstration of vector distribution of airflow and pressure on car surfaces, which helps answer questions about performance that ensures a higher quality installation.
Active Roller Guide
The amount of lateral vibration generated by high-speed elevator cars is tremendous. An innovation in the industry, Mitsubishi Electric's Active Roller Guide technology greatly reduces that vibration via an accelerometer that detects car vibration during operation, and actuators that cancel the vibration through a controlled electromagnetic force. Mitsubishi Electric Active Roller Guides ensure a more comfortable ride than elevators that use conventional roller guides.
AI Supervisory Control, Expert System and Fuzzy Logic
Mitsubishi Electric's application of breakthrough artificial intelligence technology to elevator control has resulted in improved operational efficiency and new functions that can be configured to suit a variety of building types. Pioneered by Mitsubishi, this technology has been around for over 30 years.
An intelligent "Expert System" comprises the brains behind AI Supervisory Control, so-named in that it incorporates the practical knowledge and experience of actual elevator group control experts to form a knowledge database stored inside the system's memory, thereby maximizing the operational effectiveness of each car by drawing from the knowledge database and applying decision rules to monitor and analyze traffic conditions.
Our elevator group control systems can make decisions using fragmentary and fuzzy logic intelligence concepts. Using its built-in "intelligence" and "common sense," the system can determine whether potential car assignments will result in longer waiting times for future calls or contribute to elevator congestion. This assessment results in improved performance and operational efficiency.
Destination Controls (DOAS)
The Destination Oriented Allocation System is a unique allocation system that provides passengers with the fastest and least crowded route to their destinations. When a passenger enters a destination floor number on a hall operating panel, the best car is automatically allocated to the passenger and the elevator number is displayed on the panel. The passenger goes to the assigned car, gets in and does not need to push any more buttons as the floor destination has already been programmed into the control program.
Motor Drive Mix
Mitsubishi Electric's Motor Drive Mix technology shortens waiting times during congested periods by increasing elevator acceleration between floors. The elevator's acceleration and deceleration rates are adjusted according to car load and traffic conditions to maximize driving system efficiency.
Mitsubishi Electric strives to be green in all of our business activities, including our elevator and escalator products. From regenerative drives to LED lighting, we are focused on reducing the carbon footprint of our products. An introduction to the environmental initiatives implemented throughout all our business activities, from product development to maintenance and modernization, is provided in our brochure: