Market leaders build networks from our NOS components
The top 30 Tier 1 companies are supplying 40 ECUs to 5 leading OEMs

Our mission is to be the industry leader in providing real-time and embedded communications and diagnostics software products to the automotive industry worldwide. Our NOS Components are being used by the top 30 Tier 1 Companies across the globe to reduce overheads on network diagnostics and management.

The credibility of these NOS components is showcased by the fact that 5 leading automotive OEMs are using 40 ECUs that have been developed using these components.

The NOS components consists of:

• Communication Component (COM)
• Network Management Component (NM)
• Software Download Layer (SWDL)
• Diagnostic Kernel Component (DK)

EuCD Product Line

Vehicle Network Architecture

Communication Component (COM)

The COM component follows a predefined, layered communication architecture that maximizes the CAN bus utilization in a scenario where multiple number of nodes exist in a network.
The COM layer contains the following functional modules:

• Signal Interaction Layer (SIL)
• Gateway (GW)
• Data Link Layer (DLL)
• CAN and LIN Driver

Key Features

• Signal parser tool generates a signal database that can be separately flashed during vehicle integration independent of COM and application software
• Supports both standard and extended CAN identifiers
• Supports only UUDT messages
• Signal level interface to application and frame level for diagnostics
• Supports periodic, event periodic, sporadic and immediate frames
• Supports variable/fixed DLC

Network Management Component (NM)

The Network Management Layer ensures the security of the CAN communication in the network and allows only authorized nodes to participate in communication. The NM component supports node monitoring by dedicated NM messages.

Key Features

• Facilitates start-up and shutdown of communication on the network
• Handles communication failures (transmission and reception errors)
• Coordination of global operation modes (network sleep/wakeup)
• Dedicated NM messages using token ring principle
• Two variants - single instance and dual instances
• Network frame configuration procedure

Software Download Layer (SWDL)

The Bootloader software flashes new versions of application software into an ECU either in assembly or service. The Bootloader software resides within the ECU and interacts with a PC-based flash tool to support downloading and uploading of application software. KPIT CUMMINS' Bootloader™ is based on ISO 14229 specifications with ISO 15765 - 2.4 Network Layer services.

Key Features

• Consists of PBL in protected flash and SBL in RAM
• Flash algorithms in SBL only so that accidental re-flashing during application execution can be avoided
• Workarounds in SBL possible in case of errors in PBL
• Independent component with minimal interaction with application
• Uses only reset and COP (watchdog) interrupts
• Supports download to sub-nodes (optional)
• Minimal diagnostic services

Diagnostic Kernel Component (DK)

The Diagnostics Kernel software is used to transfer information from an ECU to an off-board tester and vice-versa. The information transferred consists of ECU fault information, parameter reporting, calibration values and many other types of data. The data can be used in performing ECU diagnostics. These are not associated with normal node-to-node communication. The component is based on ISO 14229 and ISO 15765 Diag-on- CAN standards.

Key Features

• Composed of network and diagnostic layers
• Dynamic changes in flow control parameters
• Scalability of services
• Scalability within the service
• Tool to support DK configuration
• DK includes fault handler
• 11 bit diagnostic gateway

Eu CD Product Line

No.	Eu CD NOS Component
1	COM Layer in compliance to the Specification Application Programmers Interface for EUCD Network Software Component – COM - Volvo Document No. 31812548 Issue 003, Dated November 5, 2004 in short called "COM".
2	NM Layer in compliance to the Specification as per chapter 4 - Software Requirement Specification for CAN Network Management Component - Volvo Document No. 31812308 Issue 006, Dated October 27, 2004, in short called "NM4". The KPIT NM. It does not include Chapter 5 and Chapter 6 of the Volvo NM specification (document 31812308/006)
3	NM Layer in compliance to the Specification as per chapter 5 - Software Requirement Specification for CAN Network Management Component - Volvo Document No. 31812308 Issue 006, Dated October 27, 2004, in short called "NM5". The KPIT NM. It does not include Chapter 4 and Chapter 6 of the Volvo NM specification (document 31812308/006)
4	NM Layer (Single instance) – in compliance to the Specification Document No. 31803659 Issue 004-01 dated: 2004-10-29 in short called P1 NM
5	DK Layer in compliance to the Specification Generic Global Diagnostic Specification (Part 1) - Ford Document No.31810161 Issue 002, Dated May 21, 2003, in short called “DK002”.
6	DK Layer in compliance to the Specification Generic Global Diagnostic Specification (Part 1) - Ford Document No.31810161 Issue 003, Dated August 17, 2004, in short called “DK003”.
7	SWDL Layer in compliance to the Specification Software Download Specification (ISO 14229-1 based) Ford Document No.31808456 Issue 003, Dated June 8, 2004, excluding gateway function, in short called “SWDL003”.
8	SWDL Layer in compliance to the Specification Software Download Specification (ISO 14229-1 based) Ford Document No.31808456 Issue 004, Dated April 15, 2005, excluding gateway function, in short called “SWDL004”.

Support

KPIT CUMMINS provides comprehensive support to NOS users:

• Telephonic and email support for NOS integration
• On-site and off-shore integration support
• Training

For any assistance, kindly contact nos@KPITCummins.com