Location: Chennai
Firm: Raptee.HV
As a {Hardware} Engineer, you’ll personal the schematic design, MCU choice, management evaluation, and debugging of our PMSM motor controllers. From deriving PI positive factors mathematically, to designing circuits, to validating MTPA and field-weakening methods on dyno, your work will instantly form the effectivity, drivability, and reliability of our bikes.
This function provides a singular likelihood to bridge principle and follow — combining superior management arithmetic, {hardware} design, and real-world validation — together with your designs powering autos on the street.
Key Obligations
- Energy Electronics & Excessive-Voltage {Hardware}
- Design inverter phases, gate driver circuits, safety circuits, and sensing {hardware} for PMSM controllers.
- Choose and validate semiconductors (MOSFETs, IGBTs, drivers, sensors) with consideration to thermal and EMI/EMC constraints.
- Assist EMI/EMC compliance and reliability engineering.
- Low-Voltage & Schematic-Degree Design
- Create schematics for microcontroller circuits, decoupling, RC filters, and sign conditioning.
- Outline greatest practices for analog vs digital floor separation, noise mitigation, and mixed-signal design.
- Present clear schematic packages for PCB design engineers and assessment their implementation.
- Management Techniques & Plant Modeling
- Develop mathematical plant fashions of inverter–motor techniques utilizing Laplace transforms and switch capabilities.
- Carry out stability evaluation and analytically calculate PI/PID positive factors earlier than dyno validation.
- Simulate and validate management loops in MATLAB/Simulink.
- Superior PMSM Management Methods
- Apply superior PMSM/IPM management strategies akin to MTPA, MTPV/subject weakening, and deep subject weakening.
- Perceive variations in technique between floor PMSM and inside PMSM.
- Implement and validate clean transitions between torque management, MTPA, and flux-weakening areas.
- Optimise methods for effectivity, drivability, and thermal limits.
- {Hardware} Debugging & Validation
- Carry up new boards, validate alerts, and debug {hardware} points throughout energy and low-voltage domains.
- Diagnose noise, grounding, or sign integrity issues and suggest corrective design modifications.
- Validate torque output, effectivity, and stability on dyno setups.
- System Structure & MCU Choice
- Collaborate with software program and firmware engineers to pick acceptable microcontrollers.
- Outline necessities akin to clock velocity, reminiscence dimension, ADC decision, PWM frequency, and peripheral availability.
- Determine pin mapping, communication interfaces (CAN, SPI, I2C, UART), and security options to help system wants.
- Guarantee {hardware} decisions align with control-loop timing and software program necessities.
- Car-Degree Perspective
- Perceive how motor controller design impacts regen methods, drive-cycle power use, and general automobile vary.
- Use vehicle-level simulations to align {hardware} and management decisions with effectivity and drivability objectives.
- Collaboration & Documentation
- Work carefully with firmware/software program engineers for built-in growth.
- Doc schematics, element justifications, management evaluation, debugging outcomes, and validation procedures.
What We’re Wanting For:
- B.E./B.Tech or M.E./M.Tech in Electrical, Electronics, Energy Electronics, or Management Techniques Engineering.
- Robust information of PMSM/IPM motor controller {hardware} (inverters, gate drivers, sensing, safety).
- Deep understanding of management principle: Laplace transforms, switch capabilities, Bode/Nyquist stability, PI/PID tuning.
- Sensible experience in superior PMSM management methods (MTPA, MTPV, flux weakening, deep subject weakening).
- Expertise in schematic-level design of each energy and low-voltage circuits.
- Palms-on expertise in {hardware} debugging and board bring-up.
- Familiarity with MATLAB/Simulink for plant modeling, management simulation, and vehicle-level evaluation.
- Expertise validating controllers on dyno setups.
- Means to collaborate on microcontroller choice and necessities definition with software program groups.
Good-to-Have
- Expertise with automotive requirements (ISO 26262, EMI/EMC).
- Publicity to state-space or observer-based management strategies.
- Information of thermal design and reliability evaluation.
- Expertise with HIL testing or fast prototyping.
