Shiyu Liu
***** **** **** ****• Lake Forest, CA *2630• 304-***-****• adbywe@r.postjobfree.com
SKILL SUMMARY
Ph.D. Degree in Mechanical Engineering
Six years’ experience in Automotive Industry
Excellent in data analysis, project execution
Experience in negotiation
Skilled in mentoring peer engineer and training technicians
Proven ability to lead technical team to improve data quality, reduce running cost, and delivery results on time
Willing to learn new skills and good at continuous improvement
Expert in Python, VBA on Excel
Trained in Design for Six Sigma
Selected Experience
Karma Automotive 2019.02- Present
Emissions Test and Development Engineer
Perform OBD demonstration on plug-in hybrid electric vehicle (PHEV) for emissions certification
Oxygen Sensor fault insert through IAV Primero
Unified diagnostic service (UDS) demo for best performance unacceptable (BPU) and worst performance acceptable (WPA)
Execute emissions test on plug-in hybrid electric vehicle (PHEV)
Chassis dyno emissions test for FTP75, HWFET, cold FTP75
Emissions results analysis for engine control module and hybrid control unit development
Stationary new European driving cycle testing on PHEV for PM emissions evaluation Optimal CAE (Assigned at Fiat Chrysler Automotive) 2016.06-2018.09 Senior Research Engineer
Perform After-treatment simulation to meet emissions regulations
Develop three-way catalyst (TWC) model to simulate emissions at real-world off-cycle
Validate GT-Power engine/emission model
Develop O2 perturbation strategy to increase TWC conversion rate
Develop catalyst cooling down model for electrified vehicles
Build catalyst model(standalone) in GT-POWER and correlate model with test data
Predicate catalyst temperature through engine shut down with validated model
Provide catalyst temperature map to electrified vehicles control to meet emission regulations and achieve best BSFC
Perform 1D engine simulation for new engine development projects
Develop 1D engine simulation models in GT-POWER with completed intake and exhaust system
Evaluate new engine technologies and predict performance and efficiency
Support engine control algorithm evaluation and/or development
Enhance current standard analytical practices to improve model accuracy and/or increase execution speed
Cooperatively work with design release engineers/test engineers
Provide component - level and/or system-level design recommendations based on interpretation of analysis results
Austin Tri-Hawk Automotive 2016.01-2016.06
Engineer
Specially assigned to take responsibility of Subaru of Indiana Automotive
Provide engineering support, convey customer requirement to production team, collect customer approval drawings and coordinate technical reviews
Support new model launch and maintain current mode
Order/ship trial pars for customer events, write procedure for order/ship process
Develop quotas for events parts, mass production parts, and service parts
Design containers for new model packaging
Issue PO for the tooling investment
Monitor sales volume and analyze trends
Develop annual sales quotas and reduce selling price per customer request Cummins 2013.03-2015.12
Emissions Engineer
Lead emissions measurement function for Cummins high horse power engine development and assure technical center comply with EPA and ISO regulations
Select, design, develop, purchase, commission, and troubleshoot emissions measurement equipment, methods, and software specific for HHP engines
Initiate continuous improvement of emissions measurement equipment
Reduce emission sampling time by three times, which led to reduction of running cost
Optimize flow rate meter calibration to close to engine running condition and to reduce technician working load
Develop checking procedure for bench compliance with EPA certificate test
Extend FTIR measurement on new constituents (NH3, CH4, N2O)
$50,000 reduced on emissions measurement equipment re-purchasing through capability analysis Supervise and coach technicians for emissions equipment calibration/maintenance
Write emissions bench calibration & checks procedures for technicians
Technical support for solving bench malfunction within 8hrs Lead 6S project: Create a calibration method for accurate measurement of compositions of blending fuels with Gas Chromatography (GC)
Innovate calibration method with measurement accuracy (raw total) with -/+1% (allowable within -/+5%)
Cover blending ratio from 0 to 100 with minimum calibration cost (6 bottles)
First GC in Cummins achieve this capability
Education
Doctor of Philosophy in Mechanical Engineering 2013 West Virginia University, U.S.A
Master of Science in Mechanical Engineering 2008
Tianjin University, China
Bachelor of Science in Mechanical Engineering 2005 Shandong University, China