Increasing the precision of advance evaluations by comparing tests with simulations
At Hitachi Construction Machinery, we have focused on the effectiveness of ALD since 3D/CAD was introduced in 1997 and have poured our energies into advance evaluations of designs using simulations. In October 2008, we launched the Experiment, Analysis & Evaluation Center, which brings together the core members responsible for various fields including analysis, evaluations, and tests at each in-house division. At the center, we have created an environment to make more effective use of ALD, including developing evaluation analysis tools and modeling technology necessary for the advance evaluation of construction machinery. On the other hand, after we complete a test product, we move forward with field tests in markets throughout the world. By repeatedly comparing and verifying simulation results against the test results of the actual machinery item and revising the analysis model, we improve the precision of advance evaluations based on simulation analysis.
Since introducing ALD, we have steadily reduced lead time and costs of product development. As the precision of and number of evaluation items of advance evaluations increase, ALD is becoming an indispensable method even when pursuing product performance and reliability.
We are introducing model-based development, which makes use of simulations in the development process, for not only hardware but also software embedded in electronic control systems, etc., and working to improve design quality, shorten development times, and reduce development costs. For example, model-based development was used when developing the embedded software for the body stability control system, which was included in recent rigid dump trucks with AC drive and has received high praise in the market.
At Hitachi Construction Machinery, we will continue to pursue more advanced development processes and construction machinery innovation by making effective use of the latest ICT.