Title
Comprehensive Fault Diagnosis and Fault-Tolerant Protection of In-Vehicle Intelligent Electric Power Supply Network
Abstract
For current power supply systems in internal combustion engine (ICE) vehicles, there exists a lack of comprehensive monitoring and sufficient management. There is no effective fault diagnosis and fault-tolerant protection either. With increasing number of devices applied in ICE vehicles, power supply system of vehicle is in desperate need of improvement. In this paper, a novel in-vehicle intelligent electric power supply network with comprehensive on-board fault diagnosis and real-time fault-tolerant protection is proposed. First, the architecture of in-vehicle intelligent electric power supply network is established, making the power supply process of all devices smarter. Then, a hybrid-signal-based method is presented for on-board detection of multifarious faults, and over-temperature failure of wiring harness is detected based on the proposed real-time temperature evaluation model of wiring harness. Furthermore, a multilevel fault-tolerant protection method is proposed based on redundant design, to achieve power supply security and avoid false protection. Finally, tests are performed on the vehicle as well as test bench to verify the feasibility and reliability of the proposed power supply network. The results reveal that each device's power supply process is appropriately monitored, online detection of faults is successfully achieved, and the fault-tolerant method is able to realize remediation and protection in real time.
Year
DOI
Venue
2019
10.1109/TVT.2019.2921784
IEEE Transactions on Vehicular Technology
Keywords
Field
DocType
Power supplies,Fault diagnosis,Relays,Fault tolerance,Fault tolerant systems,Real-time systems,Circuit faults
Supply (process),Internal combustion engine,Electric power,Supply network,Automotive engineering,Test bench,Computer science,Electronic engineering,Fault tolerance,Cable harness
Journal
Volume
Issue
ISSN
68
11
0018-9545
Citations 
PageRank 
References 
1
0.35
0
Authors
5
Name
Order
Citations
PageRank
Weiwei Kong1349.67
Yugong Luo2306.08
Zhaobo Qin310.35
Yunlong Qi410.35
Xiaomin Lian5132.41