Barath Chand Jasti

Farmington Hills, Michigan • E: acx3cp@r.postjobfree.com • M: 906-***-****

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Experienced Graduate student having hands-on experience in Powertrain Calibration, Vehicle testing, Engine modelling & Dyno testing, HIL validation, Data Acquisition & Model based algorithm development looking for full-time positions.

EDUCATION

Michigan Technological University Aug 2015 to Dec 2016

MS Mechanical Engineering • CGPA: 3.8

Amrita Vishwa Vidyapeetham, India July 2009 to May 2013

BE Mechanical Engineering • CGPA: 3.75

TECHNICAL SKILLS

Matlab • Simulink • dSPACE • Amesim •GT-Power • Inventor • LabVIEW • Moto hawk • CANJ1979 • CANalyzer • Dyno testing • Control system design• PID Control • Model based design • Emission testing • Embedded C • C++ • Ansys • Pro-E • Solid works • Arena • AutoCAD •Deform • SAP • APQP • 7QC tools • GD&T• PEPS • TS16949 • ISO 9001

MTU - FSAE February 2016 – Present

Powertrain & Engine Department

Responsible for Engine calibration & testing, ECU tuning and Vehicle Assembly.

Yamaha Genesis 80FI Engine Dyno testing, Calibration and Development of spark and fuel maps

Engine teardown, diagnosis, Part sizing and Rebuild and Drive by wire control system mounted on throttle.

Smoothing of torque curve at 7000 rpm by altering fuel and spark maps.

Design of traction control system for F-260 Vehicle using Arduino and ECU mapping

MTU – Hybrid Electric Vehicle Enterprise (Controls team) Oct 2015- Jan 2016

Design of Battery Control Module for Custom 1949 Chevrolet truck – HEV Enterprise

Developed control logic for HV battery system using Simulink/Stateflow with CAN messages and also built AmeSim model of battery (A123), inverter (RMS PM100DX) and E-motor (for simulation purposes.

Assisted in development of control strategy, implemented in supervisory controller to control individual units like EU, inverter, BCM unit that receives command signal from Microautobox /dSpace to control charging/discharging.

ACADEMIC MTU PROJECTS:

Optimizing the Performance of a Hybrid Electric Vehicle (Malibu) using Simulink

Developed full HEV model using Matlab/Simulink & Assessment of new technologies to enhance fuel economy.

Tuned base parameters & performed sensitivity analysis which meet CAFÉ standards and Carbon emission regulations.

Implemented Linear torque blending algorithm for blending, start/stop technology, variability in transmission shifts.

Implemented Optimization based Energy management controls strategy to achieve 30% increase in combined FE

Optimization of Performance Parameters of Configurable HEV -Vehicle Development Process

Powertrain Modelling was done in AVL Cruise for simulating the model along with control logic & drive cycles.

Vehicle was tested on a Chassis dynamometer using Dynamax 2000 and data was collected with NI DAQ.

Optimized to obtain high FE, acceleration and top speed while keeping the cost low (RYG, VTS sheets).

Experience with OBD-II standard SAEJ1979/J1939 protocol vehicle CAN Networks analysis diagnosis, development, PIDs, DTCs, and data acquisition using Vector CAN tool

Control System Model of Configurable Hybrid Electric Vehicle for Powertrain Improvement

Developed & simulated control strategies for sensor, control, actuator module using state flow, Matlab & Simulink

Developed control logic for Torque split, Engine start/stop, Motor start stop, Stepper motor, Blend factor maps, Throttle control, Driving mode and regeneration braking.

Performed HIL simulation for entire model based embedded control system with input signals (sensors) in Moto Tron ECU and incorporated hysteresis loop to prevent chattering of engine

Electronic Throttle Control via CAN J1939 Communication using dSPACE Control Desk

Designed a feedback position control system for throttle position using discrete control system through CAN communication between two dSPACE real time hardware.

Throttle position sensor, Acceleration pedal position sensor, Hall-Effect sensor and actuators connected to first dSPACE hardware and the cruise control using discrete PID controller is implemented in another dSPACE hardware.

Each CAN message given unique ID & performed Message ID Filtering, Data Filtering, CAN interrupts etc.

Fuel Injection Control using dSPACE Control Desk

Developed a Fuel Injection Control model w.r.t Engine data using Hall-Effect sensor and altered start of Injection (SOI), Injection Duration using data of 500cc single cylinder 4 stroke diesel engine.

Validated and calibrated the control system for different engine speeds and temperatures.

Implemented a Temperature compensation by reading engine temperature using NTC Thermistor & adjusting SOI .

Modelling and Controller Design for Automotive Control Systems (Spark Ignition Engine)

Designed Transient fuel controller using smith predictor strategy to maintain AFR stoichoimetric developed a PI controller combining feedforward and closed feedback of Linear Exhaust Gas Oxygen sensor therefore investigated sensitivity of model errors

Designed an optimal Idle speed controller of a nonlinear model using LQR technique with considering effects of external disturbances. Performed linearization using perturbation theory and simulation results show better settling time & overshoot compared to PID and open-loop system.

Developed torque converter lockup clutch model to control the slip in transmission during gear shifting.

Modelling of Intelligent Cruise Control Design considering headway and vehicle speed controller

Effects of EGR Rates and Injection Pressures on Controller NOx and PM Emissions

Modelled a turbocharged 4-cylinder C.I engine with EGR subsystem in G.T Power.

Adjusted Injection timing and Injection pressures to compensate increase in PM emissions due to increased EGR rates.

Engine simulation is done for part load conditions and results for specific NOx and soot emissions are with in deviation range of +/- 5 %.

Testing and Combustion Analysis of a 2 Cylinder Kohler ECH740 SI Engine

Calibrated crank angle position relative to the encoder phasing using TDC sensor & PV diagram for motoring engine.

Data Acquisition done using DCAT combustion analyzer with PCB charge & AVL GH14D 5mm pressure transducers.

Analyzed the engine combustion at different operating points of speed, load and A/F ratio.

Investigated Combustion & Engine Load control on Yanmar CI Engine - AC Dyno Test Cell

Analyzed effects of combustion phasing on engine performance by varying SOI & injection duration using Moto Tune.

Developed a test plan to control engine at different loads (NMEP’s) and constant engine speed of 3500 rpm.

Analyzed relationships between various load parameters in MATLAB by importing combustion data using uDCAD

PROFESSIONAL EXPERIENCE

Assistant Manager - TVS Sundram Fasteners Limited June 2013 - May 2015

Worked for the Design & Development of Engine, Transmission & Driveline components in Metal Forming and Powder Metallurgy area.

Documentation work like PPAP (DFMEA, OPC, SCAR, PSW, Control Plan, Layout Inspection Report etc.).

Developed quality inspection test cell for Hyundai i20 synchronous hub gear & Honda Brio shift lever.

Developed process flow for sizing & secondary Machining operations to the batch production of shock absorbers, Injection pump, Turbine shaft (Chevrolet cruse) to achieve closer tolerance dimensions and surface finish.

Supervising TPM & TQM tools like Planned Maintenance, 5S, JIT, DHS to improve OEE & OPE.

Projects & Improvements:

New process design optimization through FEA simulation for Cummins genset crosshead valve (3086362).

Analyzed Tool punch failure (Six Sigma Application) for a Maruti gear resulted in 20% productivity as well as Cost Optimization up to 40%.

Performed Root-cause analysis (Why-why analysis & Fish-bone diagram) for the elimination of spot-face chattering in Transmission Hub (24230733) for General Motors cruse automatic resulting zero rejection.

Successfully implemented taper for Cam Timing pulley to reduce spring back crack rejection rate from 5% to 0.9%.

Implemented inventory management system using SAP for tracking batch at each stage to improve productivity.

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