Open Conference Systems, SMAT 2019

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Basic Subsystems Reliability Influence Study on the Main Characteristics of Automotive
Radu Iulian Negrila, Sorin Vlad Igret

Last modified: 2020-01-02

Abstract


The reliability general theory is thus defined as it combines different specific chapters of reliability theory that consistently reflect all stages of vehicle construction and use. In the design and manufacturing stage, the properties that determine the reliability of the vehicles are consistently formulated and achieved in the production process. These properties are also called specific potential objectives. The notion of reliability also includes the level of potential reliability, after the introduction of prophylactic and restoration work in the use process.

In process of assessing the potential properties of motor vehicles, three groups are distinguished:
  1. Group of potential properties that depend on worsening of working functions and permissible level of failure-free operation, within the set time or mileage.

  2. Group of potential properties required to achieve the high level of performance and reduce the cost of manufacturing.

  3. Group of potential properties required to maintain the high level of reliability during operation, such as improving the quality of diagnoses, technical maintenance and repairing; reducing all types of expenses and increasing the productivity of motor vehicles.

Operating reliability is the result of special achievement of the potential reliability of components, manufactured under identical or different operating conditions and at different times and ways.

In the case of the “automotive” subsystem, reliability can also be appreciated by making certain characteristics and indicators for its use, which, in practice, indirectly can ultimately characterize its working qualities. In this context, dynamic traction and braking characteristics are of main interest.

 


Keywords


automotive; reliability