This document discusses OBD II stack solutions and services, including: - An introduction to OBD II stacks which are pre-tested software that integrates with diagnostic applications for emissions monitoring. - Services for developing OBD II stacks, integrating them with automotive software and ECUs, and collecting vehicle data. - Advantages of using their pre-tested OBD II stack include supporting all physical layers and being platform independent. - A customer case study where their team designed diagnostic and fault code modules for an engine control unit OBD II stack.

1. OBD II Stack Solutions And Services
What is OBD II Stack? – An Introduction
OBD II (On-Board Diagnostics) stack, designed and developed by our expert automotive developers, is a set of embedded software services
implemented in compliance with ISO 15031 standards for automotive.
This pre-tested and pre-packaged stack can be readily integrated with your diagnostic application for emissions control and monitoring of
major engine components.
This stack is best suited for passenger cars and light commercial vehicles. We also have expertise and experience to support OBD/OBD II
implementation over various physical network layers.
OBD II stack design and development services:
Stack Development for automotive ECU and tooling applications
Implementation of physical layers (CAN, J1850. K-Line and more) as per the project requirement
Implementation of OBD modes and PID (Parameter IDs’) implementation
OBD II stack Integration with automotive ECU application software
Fault code memory implementation
Vehicle Data collection solutions
Consulting workshops to understand the vehicle data collection requirements
Complete design and functional audit of the existing/legacy system (if any)
OBD II stack design and development services for data collection from on-road vehicles
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2. OBD II Stack Solutions And Services
Solution design for after-market automotive products
OBD II stack integration, design and development services for after-market automotive products/solutions
Support for access to vehicle parameters, data collection and processing
Development, testing and maintenace support for Telematics, ADAS, Remote Vehicle Diagnostics, Driver Behavior Analysis
OBD II stack implementation on physical layers
Support for implementation on all automotive physical layers – CAN, K-Line, ISO9141, PWM and VPW (J1850)
Advantages of integrating the OBD II stack:
 OBD II stack supports all physical layers - CAN, K-Line, ISO9141, PWM and VPW (J1850)
 Pre-tested software stack: OBD II stack has been tested forintegration in both automotive control units and tooling applications
 This OBD II stack is designed to support all OBD modes
 Platform independent – OBD II stack can be integrated with Non-OS, RTOS, and Linux environments
 This automotive software stack has been pre-tested for integrations with multiple embedded platforms - Freescale, Renesas, PIC,
Fujitsu and more.
 This stack has been designed to ensure reduction in time to market and development costs for the customers
OBD II stack design implementation: hardware and software expertise
OBD module Hardware Software
OBD services NA ISO 15031
OBD over CAN CAN support in microcontrollerCAN
transceiver
ISO15765 (CAN TP layer)
OBD over J1850
(VPW/PWM)
PWM support in microcontrollerJ1850
transceiver
PWM driverVPW/PWM driver
based on J1850 standard
OBD over K-Line UART support in microcontrollerK-
Line/ISO9141 transceiver
UART driverK-Line driver (based
on ISO14230)
OBD over ISO9141-2 UART support in microcontrollerK-
Line/ISO9141 transceiver
UART driverISO9141-2 driver
.
Why partner with us for OBD/OBD II stack integration project:
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3. OBD II Stack Solutions And Services
 Leverage our automotive domain expertise and project experience in OBD II stack integration to reduce time-to-market and
application development costs
 We are a CMMi Level 3 and ISO 9001:2008 & ISO 27001:2013 certified organization
 Robust project management processes based on EmbiQ – an engagement model. This model is built on three critical pillars -
People, Process and Technology.
.
OBD II stack business impact: customer success story
Business Challenge: Design, development and testing of OBD II stack for Engine Control Unit
.
.
Our team of automotive embedded developers designed following OBD modules after the initial requirement gathering workshop with the
automotive customer:
 Diagnostic System Manager (DSM) with Fault Code Memory: DSM modules collects test results reported by the monitoring
functions. Current fault states and derived error memory entries are stored in standard form and is readily accessible to the
application software and Tester communication.
 OBD Diagnostics Services: This module provides external access to fault code memory and other emission relevant data. A
generic OBD scan tool can be connected to the ECU to read emission related data.
For more details about the OBD implementation and tools and technology deployed for this project, please refer to the entire case-
study here.
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