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I have a compact city-oriented car that I want to convert into a true hybrid: an internal-combustion engine takes care of propulsion while fuel is available, and the on-board battery pack must take over seamlessly as soon as the tank runs low. The switchover has to be fully automatic—no toggles, keys, or apps to press. To make that possible I need a complete control strategy, hardware layout, and integration guide that ties together: • an automatic IC-to-battery change-over controller • fuel-level, battery-charge, and engine-temperature sensors feeding the logic • clear wiring and CAN/OBD interfaces so the existing dash can display status City driving means frequent stops, so regenerative charging during engine use is important; when the motor is running I want the alternator (or a dedicated generator) topping up the pack efficiently without over-charging. Deliverables I must see before sign-off: 1. Block diagram and schematic for the hybrid powertrain, showing sensor placement and controller I/O. 2. Control algorithm flowchart or code (Arduino, STM32, or similar MCU) with threshold values for automatic switching. 3. Bill of materials with commercially available components easy to source in small quantities. 4. Step-by-step integration notes so a competent mechanic/electrician can replicate the build. Provide the package in PDF plus original editable files (CAD, Eagle/KiCad, or code) so I can iterate later.
Project ID: 40524872
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10 freelancers are bidding on average ₹29,593 INR for this job

As an automotive engineer and electronics expert with years of experience in Arduino, Embedded Systems, and PCB Layouts, I bring a unique skill set to your project that aligns perfectly with what you need. With knowledge on control strategy and sensors, I can design an automatic IC-to-battery change-over controller for a seamless switchover experience. Best regards, Sakshi masih
₹13,434 INR in 1 day
5.1
5.1

Dear Client, At Vutuk Design and Media, we bridge the gap between complex automotive hardware engineering, advanced structural simulation, and elite technical asset visualization. Supported by a 15-year background spanning precision machine design, an active multi-printer rapid prototyping laboratory, and expert non-linear Finite Element Analysis (FEA) using tools like Abaqus, our integrated studio floor is uniquely positioned to handle your Automatic Hybrid Car System Design project with absolute technical precision. To help us scope your hybrid automotive development and media requirements precisely, we would like to ask: Do you require structural Finite Element Analysis (FEA) safety factor or dynamic vibration resonance reports within Ansys to validate the mounting architecture under peak engine and motor torque? Are you building physical proof-of-concept models, and should we concurrently optimize the custom gear selectors, housing shells, or mounting blocks for multi-material FDM/SLA 3D printing in our lab? Would you like a high-end 3D animated promotional video from our media studio showcasing a cinematic exploded view of the hybrid drivetrain assembly, internal energy routing paths, and custom project branding? We invite you to visit our profile and explore our complete mechatronic infrastructure engineering, advanced simulation, and commercial media portfolio. Sincerely,
₹25,000 INR in 7 days
4.6
4.6

Your hybrid conversion isn't "add a battery and a relay." A city vehicle demands sub-200ms switchover, intelligent regenerative braking, and CAN integration without phantom fault codes. I've built this before. My 8 years span CNC automation, 13-DOF robotic arms with real-time embedded control, and 3 years as QC Manager where seamless switchover is safety-critical, not a feature.
₹12,500 INR in 7 days
0.0
0.0

Hello, We are Mevonics Technologies Pvt Ltd, Chennai, India, specializing in Embedded Systems, Electronics Design, IoT Solutions, PCB Development, and Product Engineering. We reviewed your hybrid vehicle conversion requirements and can assist in developing a complete control architecture and integration package for the proposed system. Our deliverables will include: • Hybrid powertrain control strategy and system architecture • Automatic IC-engine to battery changeover logic • Sensor integration for fuel level, battery status, and engine temperature monitoring • Controller selection and I/O mapping (Arduino, ESP32, or STM32) • CAN/OBD interface recommendations for dashboard integration • Block diagrams and schematic design • Control flowcharts and switching algorithms • Bill of Materials (BOM) with readily available components • Step-by-step integration and implementation documentation • Editable design files and technical documentation Our team has experience in embedded control systems, electronics design, firmware development, sensor integration, and automation projects. We emphasize practical, scalable designs that can be implemented and tested efficiently. We are available to begin immediately and would be happy to discuss your vehicle specifications and project objectives in more detail. Best Regards, Mevonics Technologies Pvt Ltd Chennai, Tamil Nadu, India Embedded Systems | Electronics Design | IoT Solutions | Product Development
₹35,000 INR in 7 days
0.0
0.0

With my 6+ years of hands-on experience as a Mechanical Engineer, including expertise in Mechanical Design, Product Development, and Design for Manufacturing (DFM), I believe I am the right fit for your Automatic Hybrid Car System Design project. I specialize in transforming ideas into practical, manufacturable designs optimized for real-world production processes, which is exactly what you need for your compact hybrid car. My in-depth knowledge in alternative energy storage and management systems will enable me to design a reliable and efficient automatic IC-to-battery change-over controller that seamlessly switches between internal combustion and battery power. Additionally, my skills in system integration and creating clear wiring interfaces would ensure easy monitoring of fuel level, battery charge, engine temperature on your existing dash. I take great care in producing comprehensive deliverables that are not only complete but easy to understand. You can expect detailed block diagrams, schematics, control algorithms, BOMs (with commercially available components), and step-by-step integration notes a competent mechanic/electrician could easily replicate. I'll provide you with editable files (CAD or code) apart from the regular PDF for future iterations. Choose me for a design solution that ticks all the boxes - production-ready efficiency, cost-effectiveness and replicability. Let's get started!
₹25,000 INR in 7 days
0.0
0.0

With a unique blend of mechatronics and systems design skills, I am the perfect candidate for your Automatic Hybrid Car project. Having completed both my bachelor's and master's degrees in mechatronics, I have developed extensive knowledge in areas including Robotics, AI, and systems design, which perfectly aligns with the multifaceted nature of your project. My commitment to detail and precision will ensure a seamlessly integrated and efficient hybrid car system. I have comprehensive experience working with embedded systems that will prove invaluable in designing, developing, and implementing the automatic IC-to-battery change-over controller you require. My familiarity with Arduino, STM32, and similar MCUs will enable me to create a control algorithm that effectively manages threshold values for automatic switching. Furthermore, I understand the importance of regenerative charging during frequent stops in city driving and can therefore guarantee optimal performance from the alternator or dedicated generator. Additionally, my fluency with design software such as CAD and Eagle/KiCad means you can rely on both editable originals and seamlessly exported PDF files for all your project needs. Choose me to convert your compact car into an efficient hybrid - I promise to deliver beyond what words can express!
₹25,000 INR in 14 days
0.0
0.0

Hi As the co-head of Propulsion for DTU’s solar vehicle team, I handle powertrain architecture and system logic regularly. This city-car hybrid retrofit is right up my alley. Here is what I will deliver for your project: System Logic & Flowcharts: I will map out the entire automatic state-machine transition (ICE to battery) using highly detailed logic flowcharts based on your sensor thresholds. Hardware & KiCad Schematics: You'll get clean wiring diagrams and a Bill of Materials (BOM) utilizing easily sourceable, off-the-shelf automotive components. Accessible MCU Code: I will provide a functional, well-commented Arduino script to manage the relays and sensors. I write code with a focus on simplicity and readability, making it incredibly easy for you (or any mechanic) to read, tweak, and iterate on later. You will receive all editable KiCad files, flowcharts, and code files. What is the make/model of the car, and what battery voltage (e.g., 48V) are you planning to use?
₹60,000 INR in 30 days
0.0
0.0

Kochi, India
Member since Jun 19, 2026
₹12500-37500 INR
₹12500-37500 INR
₹12500-37500 INR
₹12500-37500 INR
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₹12500-37500 INR
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