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Chassis Development Engineer

Location:
Hudsonville, MI, 49426
Posted:
May 19, 2016

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Resume:

Yuzhu Wu

*** ****** ***** *****, ***. H**, Greenville, SC 29615

864-***-****

acuu42@r.postjobfree.com

Objective

To obtain the Chassis Development Engineer position which utilizes my chassis system development, steering and chassis system controls, data acquisition and processing, GD&T, 2D & 3D drawings, vehicle dynamics, Hardware-in-Loop Simulation, vehicle diagnostics, and vehicle NVH & testing experiences. Education

Master of Engineering in Automotive Engineering, Clemson University Clemson, SC GPA: 3.69/4.0 August 2016

Bachelor of Engineering in Automotive Engineering, Jilin University (JLU) Changchun, China GPA: 3.67/4.0 July 2013

Patents

Patent A Damper Piston Component with Flow Compensation. Patent No. 201*********.X, May 2013.

Patent A Damper Piston with Adjustable-stiffness Valve System. Patent No. 201310177437.8, May 2013. Work Experiences

Clemson University, Clemson, SC January 2016 – Present Internship - Development of Prototype of an Autonomous Golf Cart

Tested performance of the stepper motor as steering actuator, and communication with dSPACE based on CANopen.

Developed active front steering control strategies.

Study trajectory guidance module that computes the optimal future vehicle trajectory. Clemson University, Clemson, SC August 2015 – December 2015 Graduate Teaching Assistant

Description: Assisted professor on Autonomous Control System course of 28 students with grading, curriculum planning, instructing, and lab demonstration. Instructed students in their distinct team projects about applications of modern control system to engines and transmissions to optimize fuel use, emissions and performance and drive-ability. Idle Speed Controller for SI Engine

Built nonlinear mean-value model for the main subsystems of a SI engine including air and torque generation subsystem.

Implemented PI controller to track the idle speed of the engine around the reference speed.

Developed and tuned Observer-Based Feedback plus Integral Control using SIMULINK, and compared the performance with PI controller.

Throttle Body Control Lab

Built a closed-loop position control system using SIMULINK to manage the air intake through a throttle body.

Made hardware connections and connected the position control system to the dSPACE interface.

Demonstrated to students how MATLAB/SIMULINK based position control systems are deployed with dSPACE. KH Automotive Technologies (Changchun) Co., Ltd, China August 2013 – July 2014 Design Engineer – Chassis System

Development of Coupled Hydro-pneumatic Suspension System for Off-road Vehicle

Designed and optimized orifice and shims of stack on piston, as well as the volume and pressure of gas reserved in tube using MATLAB.

Created 3D models and 2D assembly drawing of designed hydro-pneumatic spring, and interfaced with other engineering teams to insure performance, manufacturing, assembly and service feasibility of components.

Realized a fixed way of coupling in coupled hydro-pneumatic suspension system that are aligned with expected handling and comfort product profiles.

Built and tuned the suspension system using MATLAB/SIMULINK to deliver would-class ride comfort and performance.

Developed a test plan and verified improvement of vehicle dynamics performance using SIMULINK-CarSim co-simulation.

Optimized concepts and designs within the vehicle package space of Mengshi.

Completed and released system, sub-system and detail designs to manufacture.

Assisted in manufacturing trials, assembling, vehicle testing and quality assessments. Development of a Semi-Active Damper with MR-Valve

Collaborated with 2 engineers and cross functional team on design, development and evaluation of new product.

Established MR-valve FEA model using FEMM to analyze magnetic properties.

Conducted sensitivity analysis, and optimized current, number of turns, and clearance through MATLAB-FEMM co-simulation.

Built MR-valve dynamics model based on Bingham model.

Calculated the structure parameters of MR-valve damper. KH Automotive Technologies (Changchun) Co., Ltd, China December 2012 – July 2013 Chassis Development Intern

Designed two kind of piston components, with flow compensation and adjustable-stiffness valve system separately, for semi- active dampers.

Generated 2D drawing using AutoCAD, and 3D layouts using CATIA.

Finalized all engineering documentation, and wrote patents. Related Projects

Clemson University, Clemson, SC December 2015 – January 2016 Model-based Fault Diagnosis for a Vehicle Chassis System

Created functional and structural block diagrams of the chassis system, and conducted Preliminary Hazard Analysis (PHA), Fault Mode and Effect Analysis (FMEA) and Fault Tree Analysis (FTA).

Built 3-DOF nonlinear and linearized vehicle dynamics model on MATLAB/SIMULINK.

Developed fault identification algorithm using observer based residual generation technique to identify fault on the steering angle command and yaw rate sensor.

Designed adaptive thresholds to provide sufficient robustness in the decision-making stage of FDI. Clemson University, Clemson, SC August 2015 – December 2015 Dune Buggy Road Load Data Acquisition and Vehicle Dynamics Testing

Created test plan and determined required test instrumentation.

Instrumented the dune buggy test vehicle with MEMS angular rate sensor, string potentiometers, accelerometers and strain gages, and calibrated all equipment.

Installed the dune buggy on the 4-post road simulator, and collected time history data of two maneuvers.

Drove the dune buggy on a predefined off road course, and acquired data using SoMat EDAQ.

Processed and analyzed data in MATLAB and nCode to study fatigue and durability of the suspension system, and vehicle dynamics (steering, handling, ride) performance.

Documented results of test, drew conclusions and provided recommendations by means of a formal engineering report. Clemson University, Clemson, SC January 2015 – May 2015 Active Steering Systems for Vehicle Dynamics Control

Led a team of 3 on development of active front as well as four wheel steering systems.

Developed a PID controller for active front wheel steering system, and a model matching controller with LQR for active four wheel steering (4WS) system.

Tuned the controllers to deliver desired handling and stability performance using SIMULINK-CarSim co-simulation

Created test plan and successfully verified the control strategies by implementing on steady-state circle and double lane change maneuvers.

Evaluated the vehicle dynamics performance improvement on maneuverability and agility at lower speed, as well as vehicle handling and stability at higher speed.

Clemson University, Clemson, SC January 2015 – May 2015 Vehicle Acoustic and Ride Comfort Testing

Instrumented Mazda CX-7 with A-weighted microphones to measure interior sound pressure, as well as accelerometers to measure vibrations on spindles, steering column, and seat track.

Operated Mazda CX-7 at idle, smooth road, brick road, rumble strips and typical road, and recorded data.

Analyzed the characteristics of noise and vibration signals, and studied transmissibility ratio, isolation and resonances.

Evaluated test results and finalized technical report. Professional Skills

MATLAB/SIMULINK

FEA

C-code programming

dSPACE

CATIA V5

CarSim

GT-Power

nCode

AutoCAD

ADAMS

UC X-Modal analysis

SoMat EDAQ



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