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Analysis of the Application of 8D Method in Solving the Vibration
of H7 Model Cab
ZHU Hui
2022, 47(5):
144-148.
DOI: 10.16638/j.cnki.1671-7988.2022.005.031
The bumpy driving problem of heavy-duty vehicles plagues original equipment
manufacture, mainly due to poor vehicle vibration isolation and poor road adaptability. How to
accurately and effectively find the root cause of the problem, and how to really play the role of
team-oriented problem solving (8 Disciplines, 8D) in quality research. The article combines a
company's new H7 model for a comprehensive and in-depth exchange of experience. The H7 model
was put into the market in small batches, and the cab was bumpy and the driving comfort was poor,
which caused customers to complain. The research team scientifically applied 8D, and through tree
map sorting and cause investigation, it was determined that the key factor was the poor front
suspension damping effect led to driving. The room is bumpy, and the standard implementation of 8D
completely solves this problem and realizes the double return of technology and management. The article gives a detailed introduction to the 8D method in all directions, multiple angles and key points,
especially summarizes the importance and role of the two stages of 8D formalization, D0 and D8, and
innovatively proposes the necessity of setting quality goals, to provide new concepts and ideas for the
correct application of 8D in automotive products. At the same time, it analyzes the causes of vehicle
bumps, and proposes a shock isolation design idea, which provides direction and reference for the
establishment of key factors for vehicle bumpiness.
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