Job Description

Manager - Drivetrain Integration

Date:

26 Nov 2025

Location:

Bangalore, Banglore CO, IN

Company:

Mahindra Last Mile Mobility Limited

Role Summary:

Lead the design, analysis, and validation of e-transmissions (single-speed and multi-speed) optimized for 3-wheeler cargo, LCV, and passenger EV applications. Main focus on architecture development, load case derivation based on real-world duty cycles, microgeometry optimization, durability/NVH compliance, and seamless integration with high-speed PMSM/ Induction motors.

Core Responsibilities:

Define gearbox architecture (parallel axis, coaxial, dual-stage reduction gearbox, synchronizer or dog clutch shifting concepts) based on vehicle performance targets.

Gear design using Romax/Kisssoft: Macro & micro geometry optimization as per Loaded tooth contact analysis (LTCA), Gear whine & sideband noise evaluation, Profile/lead modification for NVH & efficiency

Derive duty cycles from VDS or Road load data, customer-usage data, and regulatory drive cycles (MIDC) for torque, speed, and thermal load cases

Bearing and shaft system durability analysis including tilt stiffness evaluation, bearing preload strategies, and service life estimation per ISO/ARB standards

Drivetrain torsional vibration modeling and resonance avoidance through system-level eigenvalue analysis

Thermal & lubrication network development: oil jet targeting, churning losses, lubrication flow paths, and thermal soak considerations

Electro-mechanical integration analysis for high-speed e-drives

Rotor dynamic influence on gearbox NVH, Coupling stiffness & misalignment tolerance

Housing FE validation: gear mesh induced vibro-acoustics, stiffness enhancement for NVH, casting/forging manufacturability

Drive control collaboration: MATLAB/Simulink model interfacing for shift strategy calibration, efficiency mapping, and torque handover tuning

CFT activities: Cross- functional Collaboration Support for complete design, development & validation product lifecycle with different internal & external stakeholders like Program, Development, VI, Manufacturing, Validation for DVP&R, DFMEA, Rig & vehicle level validation technical inputs, durability test correlation, and failure mode root-cause analysis and resolution

Vendor and manufacturing support: DFM feasibility check with heat treatment specification, gear finishing process selection (honing/shaving/ grinding), GD&T release with full PPAP documentation and technical signoff

Skills & Technical Competencies:

Expert-level proficiency in: Romax, Kisssoft, Catia V5/V6, MATLAB/Simulink, Ansys

Strong grounding in: Gear, bearing, Spline design & selection as per AGMA, DIN, ISO

Transmission NVH metrics/ Behaviour optimisation (PPTE, STE, meshing excitation)

Surface engineering & tribology for high torque density EV gears

Thermal-efficiency trade-offs: churning losses, bearing, and gear mesh losses

Experience designing for: 48V-300V e-axle systems, High rpm motors up to 12000+ rpm

Commercial duty cycles: high load factor, Fatigue & overload durability

Job Segment:

Engineer, Mechanical Engineer, Automotive, Engineering