EV/HEV Powertrain Integration engineer (Performace)

Position description:
The EV/HEV Powertrain integration engineer owns the technical definition and integration of the EV powertrain as a system: dimension the motor, inverter, battery, transmission and thermal system needs against the vehicle targets, cascade and manage the powertrain needs down to each component, manage the interfaces between them and plan and execute the verification and validation that proves the integrated powertrain meets the performance, range, thermal, durability and regulatory targets. This role converts vehicle-level attribute targets into a consistent, traceable and verifiable powertrain specification and is accountable for the technical coherence, delivery and maturity of the powertrain system at every program gate.
About TVS / Who are we?
TVS Motor Company is a reputed two and three-wheeler manufacturer globally, championing progress through Sustainable Mobility with four state-of-the-art manufacturing facilities in Hosur, Mysuru and Nalagarh in India and Karawang in Indonesia. Rooted in our 100-year legacy of Trust, Value, and Passion for Customers and Exactness, we take pride in making internationally aspirational products of the highest quality through innovative and sustainable processes. We are the only two-wheeler company to have received the prestigious Deming Prize. Our products lead in their respective categories in the J.D. Power IQS and APEAL surveys. We have been ranked No. 1 Company in /the J.D. Power Customer Service Satisfaction Survey for consecutive four years. Our group company Norton Motorcycles, based in the United Kingdom, is one of the most emotive motorcycle brands in the world. Our subsidiaries in the personal e-mobility space, Swiss E-Mobility Group (SEMG) and EGO Movement have a leading position in the e-bike market in Switzerland. TVS Motor Company endeavours to deliver the most superior customer experience across 80 countries in which we operate.
For more information, please visit www.tvsmotor.com.
Job Title / Role: EV/HEV Powertrain Integration engineer (Performace)
Department: #*Business Unit*#
Section: R&D - EV Sys D&D
Location: Hosur
Education Qualification:
B.E. / B.Tech / M.E. / M.Tech in Mechanical, Automotive, Electrical or Mechatronics Engineering
Required Experience: 6 - 10 years in EV or HEV powertrain integration engineering, including hands-on responsibility for powertrain sizing, requirement cascade and system-level validation on at least one vehicle programme taken to production.
Role Description
"Accountability: Powertrain Sizing and Dimensioning
Tasks:
Translate vehicle attribute targets (top speed, acceleration, gradeability, range, payload, duty cycle) into motor, inverter, battery, transmission and thermal system specifications.
Build and maintain the powertrain sizing models: road load, tractive effort, motor and inverter operating envelopes, gear ratio selection and battery energy/power sizing.
Perform trade-off and sensitivity studies (efficiency vs cost vs weight vs packaging) and produce the technical basis for architecture and sourcing decisions.
Define, maintain and document the powertrain operating limits: continuous and peak power, current, voltage and temperature envelopes across ambient and state-of-charge conditions."
"Accountability: Powertrain delivery, System Requirements Engineering and Traceability
Tasks:
Coordinate across all component owners and stakeholders for the delivery of the powertrain with the expected maturity at each program gate (create system level documentation like DFMEA, FTA, QC stories and support component level deliverable).
Derive powertrain system requirements from vehicle, regulatory, safety and customer requirements and cascade them to component specifications.
Maintain the requirement baseline, versioning and bidirectional traceability in the requirements management tool.
Manage change impact analysis across components, suppliers and validation plans."
"Accountability: System Integration and Interface Management
Tasks:
Define and control the powertrain interfaces: mechanical mounting and cooling, HV and LV electrical packaging, diagnosis, etc.
Maintain interface control documents and resolve integration conflicts between motor, inverter, battery, charger, transmission, thermal system and vehicle.
Own the powertrain thermal integration concept: cooling architecture, flow and heat rejection budgets and thermal derating behaviour at system level.
Support packaging, weight and cost tracking of the powertrain together with vehicle integration and mechanical design.
Produce and maintain system specifications, architecture descriptions, integration reports and gate review packages.
Contribute to the ISO 26262 item definition, HARA and system-level safety concept for the powertrain and verify the derived safety requirements."
"Accountability: Vehicle and Powertrain Performance Analysis and Benchmarking
Tasks:
Build and correlate vehicle and powertrain simulation models (MATLAB-Simulink) for performance, energy consumption and range prediction. Coordinate with the advanced simulation team for more detailed simulations if required.
Create real-use drive cycles from field data and vehicle targets.
Predict and verify certification and real-world cycle performance (WMTC, IDC/MIDC, WLTC and customer duty cycles) and track the range/consumption budget through the programme.
Own the powertrain energy and loss budget: motor, inverter, battery, transmission, auxiliaries and thermal losses; drive efficiency improvement actions.
Correlate simulation against dyno and vehicle measurement and maintain model accuracy and confidence statements.
Benchmark competitor powertrains and technologies and feed the findings into target setting and architecture roadmaps."
"Accountability: Powertrain System DVP Planning and Execution and Homologation
Tasks:
Define and execute the powertrain DVP: analysis, bench, dyno, environmental, durability and vehicle-level tests with acceptance criteria linked to requirements.
Analyse test data, judge requirement compliance, document deviations and drive design or calibration countermeasures to closure.
Support homologation and certification activities with the required technical data, calculations and test evidence.
Capture lessons learned and maintain reusable sizing methods, calculation templates and design guidelines."

Work arrangement
Hybrid