Research on Fault Diagnosis and Maintenance Strategy Based on Automobile Engine Electric Control System

With the wide application of automobile engine electric control system, in order to solve the adverse effects of system faults on vehicle performance, this paper takes the automobile engine electric control system as an example for in-depth study. Through the analysis of common faults, the diagnosis and maintenance strategy is proposed, including fault code analysis, circuit detection, software update, and component replacement and adjustment. These strategies are expected to improve the accuracy and repair efficiency of fault location, providing practical guidelines for relevant practitioners. The research aims to promote the development of technology in the field of automotive electronic control system and improve the level of maintenance, in order to provide beneficial reference and guidance for automotive engineers and maintenance personnel

Developing multi-species brain-strain-based scaling law using finite element analysis

To better understand traumatic brain injury (TBI), various laboratory animal experiments have been developed. However, there lacks an effective scaling to connect animal TBI models with human brain injuries. With the help of the finite element (FE) model, brain mechanical responses such as strains can be predicted, and hence can serve as a parameter to facilitate animal to human scaling, as these tissue-level strains directly link to neuronal damage. In this thesis, first, a comprehensive comparison of brain strains between animal TBI models and human TBI cases was conducted. Then, a brain-strain-based scaling law between mouse and human was developed, which could serve as a guideline for closed head neurotrauma model design. Lastly, a novel and high mesh quality marmoset brain FE model was developed, which was used to enrich scaling law to non-human primates. In summary, the comparison method, scaling law, and new marmoset FE model, all together could help better represent human real-world TBI using laboratory mouse and marmoset TBI models, hence improving prevention, diagnostics, and therapeutics