Ravi Prajapati

Dynamic Power Electronics Engineer with over 2 years of specialized experience in electric vehicle (EV) integration, currently serving as Deputy Manager – Vehicle Integration Engineer at Volvo Eicher Commercial Vehicles. Expertise encompasses battery systems, high-voltage architecture, and development of advanced power electronic systems including DC-DC converters and inverters, alongside energy management strategies. Proficient in translating customer requirements into innovative technical solutions while effectively overseeing electrical system development and facilitating critical trade-off decisions throughout vehicle program lifecycle. Committed to advancing EV technology and power electronics innovation through meticulous approaches and collaborative problem-solving in fast-paced engineering environments.

• Collaborated with a team of three in the development of EV projects and led the innovation team

12 m 900 FH EV Bus

2024-2025

• Designed a 12m intercity electric bus with 900 mm floor height, optimizing comfort and space. Led vehicle design, system integration, and development of sustainable EV architecture. Selected suitable battery type and defined high-voltage (HV) system architecture.
• Managed tasks independently and led cross-functional teams for smooth project execution. Aligned design objectives with customer requirements through effective collaboration,

12 m 300 LF EV Bus

2023-2024

• Supported build-up process and resolved DFA/DFS NCRs. Closed customer requirement points related to electrical and mechanical systems.
• Reviewed assembly quality, including HV components and battery packs. Resolved design issues in power electronics and battery integration. Verified design changes for converters, HV architecture, and safety compliance.
• Documented NCR closures and battery testing feedback.
• Inspected HV routing, grounding, and thermal setups.
• Coordinated between production, QA, and electrical teams for smooth EV integration.

Modelling and Analysis of a PFC Based Cuk-SEPIC Converter for Electrical Vehicles

2021-2023

• This project presented an isolated bridgeless (BL) Cuk-SEPIC converter for a mono-stage electric vehicles (EV) battery charger. The suggested charger's design ensures fundamental power factor correction ac mains in discontinuous conduction mode. When employed for positive and negative cycles, the suggested architecture performs more effectively while using less components than the BL Cuk converter design. The merging of the CUK and SEPIC converter throughout each individual half cycle is to responsible for this. In comparison to the SEPIC converter utilized for both cycles, the output current is also smoothed by the inclusion of an output inductor at the Cuk converter side.,

Four Quadrant Operation Motor Using Dual Converter, use for controlling speed and direction of DC motor

2020

• The project focuses on developing a four-quadrant control system for a DC motor, allowing operation in clockwise, counter-clockwise, forward braking, and reverse braking modes. This system is ideal for industrial applications requiring precise motor control, including immediate braking in both directions. Instantaneous braking is achieved by briefly applying reverse voltage to the motor. The system utilizes a 555 timer to generate the required pulses and employs switches interfaced with an H-bridge circuit to control motor operation effectively.

Smart Street Light

2019

• The project aims to optimize energy consumption on highways by detecting vehicle movement and managing streetlight operation. It activates only the block of streetlights ahead of an approaching vehicle while turning off or dimming trailing lights. When no vehicles are present, all lights remain off or at 10% intensity, depending on the mode. As a vehicle approaches, the lights ahead switch to full brightness (100%), and the trailing lights revert to 10% intensity after the vehicle passes. This system significantly reduces energy waste compared to traditional highway lighting, where all lights, remain fully on throughout the night.

• GATE qualified two times, 2020 and 2021

Power Electronic Interface And Drives For Electrical Vehicle

• Certified MNNIT Allahabad

• Electrically equipped rear parking brake system for commercial vehicle
• Enhancing commercial vehicle performance front parking brake system for superior gradient hold

• Modelling and analysis of a PFC-based EV battery charger using a Cuk-SEPIC converter