Electromagnetic Interference from Motorbike

Projects General Guidance
8

I have seen similar transient as shown on your scope when the contact points open on an ignition coil. This is also possible with some simple electronic controllers. I am assuming it is powered from the vehicle and it is in close proximity so that brings up both radiated and conducted EMI. Here is some reading that will take a bit of time but should help.
Valuable Resources for Automotive Electronics:

  1. STMicroelectronics Application Note AN2689:
    This application note provides guidelines on protecting automotive electronics from electrical hazards, focusing on design and component selection. Reading this will greatly enhance your understanding of automotive circuit protection.
    Read AN2689

  2. Analog Devices: Automotive Electronics Design:
    This article distills key insights into designing automotive electronics, offering practical advice for engineers.
    Read the article

  3. Diodes Incorporated: Transient Voltage Suppression in Automotive:
    Learn about techniques to protect automotive circuits from transient voltage, which is critical for ensuring reliable operation in harsh conditions.
    Read the article

  4. AEC-100 Standards Webinar:
    This webinar from Monolithic Power Systems provides a detailed overview of AEC standards, essential for understanding automotive electronics requirements.
    Watch the webinar

  5. Understanding Automotive Electronics, An Engineering Perspective by William B. Ribbens:
    This comprehensive book offers an in-depth look into automotive electronics from an engineering perspective, making it an invaluable resource.
    Access the book

  6. Check this for OBD ISO9141 Code Meaning & How To Fix OBD negotation initialization procedure https://cdn.standards.iteh.ai/samples/16738/20ff360c25c6462b811ebc0c9256eee0/ISO-9141-2-1994.pdf Then there is https://github.com/muki01/OBD2_K-line_Reader PID codes: OBD-II PIDs - Wikipedia

  7. Load Dump and Cranking Protection for Automotiv Backlight LED Power Suppl https://www.ti.com/lit/an/snva681a/snva681a.pd

  8. Quality requirements:

Client Challenge.

Looking at your photo you do not have any real shielding and lots of antennas.