Variable-structure diagnostics approach achieving
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申请号：US1080764 5 申请日：2004 0323 公开号：US20050212523A1 公开日：20050929 专利附图：
摘要：The present invention provides a diagnostics methodology and embedded
electronic system that allows optimized low-frequency data sampling for EMA motoring subsystems in an operating vehicle. Each of the EMA motoring subsystems includes: an EMA; at least one motor for driving the EMA; and power controls for operating the motor, wherein the power controls includes a DSP controller for sampling and processing data at low-frequency sampling rates. The diagnostic methodology includes a method that has the steps of: determining an operational mode of the EMA motoring subsystem; selecting a sampling rate optimized for the determined operational mode; acquiring and processing data at the selected sampling rate; and analyzing the processed data to identify and classify a fault of the EMA motoring subsystem.
申请人：Jie Chang,Kirby Keller,Anhua Wang,Jiajia Zhang
地址：Park CA US,Chesterfield MO US,Thousand Oaks CA US,Los Angeles CA US
国籍：US,US,US,US
更多信息请下载全文后查看
专利内容由知识产权出版社提供
专利名称：Variable-structure diagnostics approach achieving optimized low-frequency data sampling for EMA motoring subsystem
发明人：Jie Chang,Kirby Keller,Anhua Wang,Jiajia Zhang
摘要：The present invention provides a diagnostics methodology and embedded
electronic system that allows optimized low-frequency data sampling for EMA motoring subsystems in an operating vehicle. Each of the EMA motoring subsystems includes: an EMA; at least one motor for driving the EMA; and power controls for operating the motor, wherein the power controls includes a DSP controller for sampling and processing data at low-frequency sampling rates. The diagnostic methodology includes a method that has the steps of: determining an operational mode of the EMA motoring subsystem; selecting a sampling rate optimized for the determined operational mode; acquiring and processing data at the selected sampling rate; and analyzing the processed data to identify and classify a fault of the EMA motoring subsystem.
申请人：Jie Chang,Kirby Keller,Anhua Wang,Jiajia Zhang
地址：Park CA US,Chesterfield MO US,Thousand Oaks CA US,Los Angeles CA US
国籍：US,US,US,US
更多信息请下载全文后查看
专利内容由知识产权出版社提供
专利名称：Variable-structure diagnostics approach achieving optimized low-frequency data sampling for EMA motoring subsystem
发明人：Jie Chang,Kirby Keller,Anhua Wang,Jiajia Zhang