EV/HEV Powertrain Integration engineer (Functional)

Position description:  The EV/HEV Powertrain integration engineer owns the functional layer of the EV/HEV powertrain: decompose vehicle-level powertrain functions into a coherent functional architecture, allocate functions to controllers, develop the control algorithms that govern torque path, power flow and energy management and drive their deployment into the embedded software of the VCU/HCU and other powertrain ECUs. The role bridges powertrain system engineering and embedded software. This tole is accountable for the functional behaviour, safety monitoring and calibration quality of the powertrain in the vehicle and ensures proper scalability and modularity across platforms.

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 (Functional)

Section: R&D - EV Sys D&D

Location: Hosur

Education Qualification: B.E. / B.Tech / M.E. / M.Tech in Electrical, Electronics, Mechatronics or Control Systems / Automotive Electronics preferred.

Required Experience: 6 - 10 years in powertrain control functional development and integration, with demonstrated ownership of powertrain functions from concept and functional decomposition to embedded deployment to vehicle-level calibration.

Role Description

·      "Accountability: Powertrain Functional Architecture and Functional Decomposition

 

Tasks:

- Decompose vehicle-level powertrain functions (propulsion, regeneration, charging, thermal, limp-home, derating) into functional blocks with defined inputs, outputs and responsibilities.

- Define the functional architecture and allocate functions to controllers (VCU/HCU, motor controller, BMS, DC-DC, Charger), including the signals and interface definition between them.

- Own the powertrain operating mode and state machine definition, transitions, arbitration priorities and fault-reaction behaviour.

- Maintain functional specifications and traceability from system requirements to functions, models and test cases."                                                                           

"Accountability: Powertrain Control Algorithms Development

 

Tasks:

- Develop and own the torque management path: driver torque interpretation, torque arbitration and coordination, torque limiting, ramping and shaping for drivability.

- Develop and own power flow and energy management functions: power split and budgeting between battery, motor controller, charging and auxiliaries.

- Develop derating and protection functions based on thermal, electrical and state-of-charge limits, coordinated across all powertrain components.

- Develop regeneration, hill-hold, reverse and drive-mode functions and tune them for consistent and predictable vehicle behaviour without losing focus on scalability and modularity.

- Create functional flows in SysML (MBSE)."                                                                            

"Accountability: Embedded Integration and Deployment into Controllers

 

Tasks:

- Create and maintain models for code generation (MATLAB / Simulink).

- Work with the embedded software team and suppliers to integrate generated code into the ECU software baseline: resolve integration, scheduling and runtime issues on target if required.

- Define and maintain the interface between the functional layer and the basic software: signals, calibration parameters, NVM data and diagnostic interfaces.

- Verify that the deployed behaviour on target matches the model behaviour (back-to-back testing) and close deviations."                                                                       

"Accountability: Interface, Issue and Configuration Management

 

Tasks:

- Coordinate with component owners (motor controller, VCU/HCU, BMS, charger) and the embedded software team on signal, timing and behaviour agreements.

- Manage supplier technical interactions on functional content, model exchange, calibration deliveries and joint debugging.

- Maintain model, calibration and documentation baselines.

- Contribute to modelling guidelines, reusable function libraries and competence development within the controls team."                                                                   

"Accountability: Functional Safety Concept and Monitoring Architecture

 

Tasks:

- Derive the functional and safety concept for the powertrain functions from the HARA and cascade safety requirements to controllers and components.

- Design and implement the torque and power monitoring architecture: plausibility checks, monitoring functions, safe states and fault reactions.

- Define diagnostics, DTCs set/reset conditions, debounce strategies and the failure reaction matrix across the powertrain.

- Support safety analyses (FMEA, FTA, dependent failure analysis) and the associated verification evidence."                                                                        

"Accountability: MIL / SIL / HIL Verification, Calibration and Vehicle Drivability

 

Tasks:

- Build test schemes and execute MIL and SIL verification with defined coverage of requirements, decisions and boundary conditions.

- Support HIL team to create plant models for closed-loop function verification, fault injection and regression testing of each release.

- Own the calibration data set for the powertrain functions and perform vehicle and dyno calibration.

- Lead vehicle-level drivability tuning and functional issue resolution: reproduce, diagnose and close field and test-fleet observations."