Venkatrao Desai
Stuttgart
Summary
Electrification enthusiast with solid professional experience of 8 years with specialization in the area of Li-ion Battery and BMS, Development of BMS algorithms (SOC, SOH, Resistance, Current & Power prediction etc.,) BMS Software development, System Engineering & Simulations, Li-ion Cell characterization, Modelling & Control, Requirement Engineering, Model Based Development, System & Software validation etc., Interaction with OEMs for project acquisition, evaluation of technical requirements and negotiation.
Overview
8
8
years of professional experience
Work History
Senior Engineer
Mercedes-Benz Research & Development India Pvt Ltd
03.2022 - 08.2024
- System simulations: Battery performance and efficiency.
- Effective & competent KPI set-up & evaluation for battery charging time for high power DC charging scenarios.
- Aging analysis under different loading conditions & Vehicle’s field data analysis.
- Thermal management : Chiller power optimization with various turn on/off temperature and effective charge current control.
- Simulation set-up optimization for enhanced results structure.
Senior Function Developer and System Engineer
Robert Bosch Engineering And Business Solutions
09.2016 - 03.2022
- 48V 8Ah and 16 Ah Li-ion Battery and Battery Management Systems for P0 and P1 mild hybrid passenger vehicles.
- SW Development for application functions like cell state detection (SOC, OCV, SOHC & SOHR, Resistance), Current and power limits prediction, Battery Data Recorder functions for warranty and Liability etc., Unit testing (TPT), Integration testing, SW Requirement elicitation from System requirements.
- Rapid Control Prototyping : BMS algorithm development, accuracy enhancement & validation on HCP cell set-up in closed loop HW environment.
- Cell Characterization, Equivalent model parameter optimization, Validation of SOC, Resistance, SOHR and accuracy improvement etc.,
- Robustness and sensitivity of BMS parameters and their effects on drive cycle & life cycle functions (e.g., effect of current and voltage sensor inaccuracies on SOC, SOHC & resistance estimation etc.,).
- Requirement engineering (Pack to BMS System & vice versa), Cell control algorithms such as power prediction, Lithium plating and RMS current limit calculation, operation limits calculation, thermal de- rating, SOC/voltage based de-rating were also modeled and calibrated.
- Development of system function concept for State of Health Monitoring for OBD2 (CARB, USA – IUMPR fulfillment of 33.6%). SOHR function enhancement especially at lower temperatures and lower SOC operation condition.
- Requirement engineering (Customer ➔ Pack and BMS System ➔ SW), System function concept development, calibration, and validation of Prediction of Power Availability with ASIL B integrity used in Highly Automated Driving (IV) conditions in case of emergency maneuver.
- System function concept development for Battery Limited Operation Mode: SOC calculation using ASIL C integrity used for number of crank cycles possible in battery limited operation mode (also Calibration and validation).
- System function concept development and calibration for current limits for MOSFET [ASIL C integrity] used as circuit breakers.
- System simulation to evaluate power and energy performance, thermal performance, and life-time evaluation.
- Filed data analysis & validation of SOHR and SOHC, vehicle level validation using BOL & EOL packs in test vehicles for accuracy. Improving algorithm calibration maturity using field data.
Education
Bachelor of Engineering - Electronics And Communication Engineering
BVB College of Engineering And Technology
Hubli, Karnataka India06.2016
Pre University Program in Science - Physics, Chemistry And Mathematics
Pre University Board
Karnataka06.2012
High School Matriculation -
Sri Gayatri High School
Shorapur, India04.2010
Skills
- System Engineering & Development, System Simulation, Requirement Engineering
- Matlab - Simulink, Model Based Development
- Software Development, C & Python Programming, SVN, GIT, TPT
- System & Software validation Unit and integration testing
- Li-ion Battery & BMS
Accomplishments
Patents:
1. State of Charge (SoC) estimation with ASIL C integrity.
2. Prediction of power availability with ASIL B Integrity.
a. Using SOC & Temperature look up table approach.
b. Using iterative voltage prediction model approach.
c. Using one step voltage prediction model approach.
3. High performance Li-ion cell capacity estimation for 48V mild hybrid applications.
Achievements and Co-curricular activities
1. Secured 8th place in India’s largest Solar Vehicle Championship and 4th place in SAE e-BAJA dynamic round.
2. Won 1st prize in SHRISTI Avishkar (state level engineering project exhibition) for solar car in Alternate energy stream.
Languages
English
Bilingual or Proficient (C2)
German
Elementary (A2)
Timeline
Senior Engineer
Mercedes-Benz Research & Development India Pvt Ltd
03.2022 - 08.2024
Senior Function Developer and System Engineer
Robert Bosch Engineering And Business Solutions
09.2016 - 03.2022
Bachelor of Engineering - Electronics And Communication Engineering
BVB College of Engineering And Technology
Pre University Program in Science - Physics, Chemistry And Mathematics
Pre University Board
High School Matriculation -
Sri Gayatri High School
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