A Study on Vehicle Defect Characteristics Based on Domestic Recall Data

Based on the domestic vehicle recall data for ten years, the features such as recall data, defect reason, defect type, defect risk, risk cause and service life are analyzed. The five defect types which are design, manufacture, assembly, calibration and identification and three defect risks which are occupant injury, vehicle crash and firing are put forward to. The data show that the main three defect causes are design and manufacture and assembly. The most important defect types are structurally deficient, inadequate accuracy and fastening for above-mentioned three corresponding causes. The recall rate owning to the vehicle crash risk is more than the two other risks. The highest risk of occupant injury cause for recall times is airbag failure, and thus for recall numbers is door and window failure. The highest vehicle crash and firing corresponding risk causes are power losing and fuel leaking. The optimum time is within three years for service life and the range of producing years. The rate of recall times is similar linear decrease within three years.