Nagarani Ravula

MY ROLE:

• Gained an understanding of the electronic power steering (EPS) features and behaviors.
• Performed and analyzed the application lifecycle management (ALM) action on impact analysis and documented the changes and conclusions on whether safety analysis is required.
• Understood the requirements to analyze the change, which helped complete the analysis.
• Grasped the ZF internal expanded polystyrene (EPS) process and the execution of safety analysis methods, including the FMEA and FTA and Intelligence Quotient for Risk Management (IQRM) tool.
• Performed peer reviews of safety analysis.
• Reviewed the safety requirements
• Handled functional safety requirements (FSC) and technical safety concept (TSC) requirements linking.

Executed confirmation reviews of functional safety work products as per the ISO 26262 standard.

MY ROLE:
• Gained an understanding of the ISO 26262 process and product requirements for the concept, system, software, and hardware lifecycle phases.
• Understood the product development process and ISO 26262 interpretation on the client side.
• Performed confirmation review activities on safety work products to identify potential deviations from ISO 26262 requirements. Provided recommendations to improve the overall safety case for different product lines, such as steering and braking.
• Assisted the customer's safety assessors in consolidating the potential gaps in safety cases and also finalizing the release recommendation of the product.
• Worked on product traceability and consistency.
• Coordinated with product safety managers from different product lines to resolve the identified gaps and achieve compliance for the system under consideration.

Led the team that engineered an electronic steering column lock.

MY ROLE:
• Gained an understanding of the system block diagram and source code of the steering column lock functionality.
• Calculated the failure rate of each global variable and each routine and assigned the severity.
• Prepared the software design failure mode effect analysis (DFMEA) and system-level failure modes and effects (analysis) FMEA reports.
• Involved in preparing fault tree analysis (FTA) for electrical steering column locks (ESCL).
• Prepared the safety case report.
• Handled reviews.

An EV charger is an electric vehicle charging system based on the non-contact charging system (NCCS). NCCS is the fastest charging system and an inductive type of charging system.

MY ROLE:
• Involved in giving the design requirements and various certification procedures for NCCS.
• Studied electromagnetic compatibility (EMC) requirements that are useful for electromagnetic interference or EMI/EMC testing.
• Studied international standards like EN, ETSI, CENLEC, CISPR, and IEEE.
• Prepared the technical documentation for the EV charger.

An electronic park brake that replaces the traditional manual park brake with an electronic switch to hold/park the vehicle on slopes. The brake supports multiple functions like anti-lock braking systems (ABS), driver attention alert (DAA), hill hold, and rear wheel unlocker (RWU).

MY ROLE
• Prepared software DFMEA.
• Identified critical software variables, assigned with a severity ranking from 8-10.
• Identified existing protection mechanisms for the software critical variables.
• Provided recommendations to mitigate/avoid software failures.
• Constructed the software fault tree by taking hazard as the top event.
• Derived single-point and dual-point software failures leading to the hazard.
• Used the free-trade agreement (FTA) and the decomposition of automotive safety integrity level (ASIL) to the software elements, including functions and variables.
• Provided recommendations to mitigate and avoid software failures.
• Reviewed software design failure mode and effect analysis (DFMEA) and FTA.