Raptee·2 months ago
2 months ago
Motor Control Firmware Engineer
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About this role
Who are we:
Raptee Energy is a full- stack electric motorcycle startup with a very strong technical moat, founded in 2019 by four engineers from Chennai (Ex Tesla, Wipro), working on bringing a no-compromise upgrade motorcycle to an otherwise scooter- only EV market. Raptee is incubated at CIIC & ARAI.
Role Overview:
You will own the design, implementation, and validation of real-time motor control firmware for PMSM/IPMSM drives in EV power-train systems. Working across the full stack from control algorithm to hardware bring-up you will collaborate with controls, power electronics, and vehicle integration teams to deliver production-quality embedded software.
What You’ll Do:
- Develop and tune FOC algorithms: current regulation, MTPA, field weakening, and regenerative braking.
- Implement SVM, PWM generation, and voltage limiting logic in embedded C for ARM Cortex-M targets.
- Build and validate motor control models in MATLAB/Simulink; generate and verify production C code.
- Integrate ADC-based current sensing, handle phase reconstruction, and calibrate sensor offsets.
- Characterize and validate drive behavior across the full operating envelope on bench and motor Dyno.
- Collaborate with hardware teams on inverter bring-up, gate driver integration, and fault protection.
- Support vehicle-level integration: torque arbitration, state machine design, and diagnostics.
Who Can Apply?
- 3–5+ years of hands-on motor control firmware experience with PMSM or BLDC drives.
- Deep knowledge of FOC: Clarke/Park transforms, synchronous-frame PI control, and SVM.
- Strong embedded C skills on ARM Cortex-M; comfortable with interrupt-driven, real-time architectures.
- Experience with MATLAB/Simulink model-based design and embedded code generation.
- Familiarity with ADC current sensing, real-time filtering, and signal conditioning.
- Hands-on with oscilloscopes, runtime monitoring tools, and systematic firmware debugging.
- B.E. / B.Tech or higher in Electrical, Electronics, or a related engineering discipline.
Good to Haves:
- Experience with IPMSM saliency, reluctance torque exploitation, or MTPV operation.
- Prior work on field weakening or regenerative braking in a production or near-production context.
- Exposure to ISO 26262, MISRA-C, or automotive software quality processes.
- Knowledge of EV power-train architecture, HIL simulation, or AUTOSAR.
Company
Raptee
Chennai, India
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