Hands On Detection

Project: November 2019 – now (ongoing)

Description

The HOD system is a capacitive measuring system to detect the drivers touch state at the steering wheel to give input to the car (e.g. for automated accelerating, braking and steering in traffic jams on highways). Its safety goal is not to send defectively a wrong touch state.
Support of the Software Team with the following tasks:

  • Software Architecture ASIL compliance
  • Software Design ASIL compliance
  • Software inspections
  • Software safety analysis
  • Development bootloader

Summary

Project Hands On Detection
Duration November 2019 – now (ongoing)
Customer confidential due to nondisclosure agreement
Industry Sector Automotive
Role / Responsibility Software Architectural Design, Software Inspections (acc. ISO 26262-2018)
Software / Tools / Methods Enterprise Architect (Sparx), Enterprise Architect VB Script, Python & C# (EA Win32 COM Interface), IAR Embedded Workbench for RL78, JIRA (Atlassian), DOORS (IBM)
Hardware Environment Renesas RL78/F14

Gateway Unit for Filter Fan Unit Systems

Project: September 2019 – October 2019 (2 months)

Description

The fan controllers are networked via RS-485 bus in a hierarchical, multi-level topology. A specific 9-bit protocol (with one wake-up bit) is used. A gateway unit connects the system to the control system via an RS-232 interface. Some systems have been in operation for more than 20 years. Replacement devices for the gateway units are no longer available. The aim of the project was to re-implement the used serial protocols on an evaluation board with a current (ARM-based) microcontroller.

Summary

Project Gateway Unit for Filter Fan Unit Systems
Duration September 2019 – October 2019 (2 months)
Customer confidential due to nondisclosure agreement
Industry Sector Clean Room Technology
Role / Responsibility Software Design, Implementation, Function Tests, Documentation, Order Processing
Software / Tools / Methods Keil uVision 5 (ARM-MDK), Enterprise Architect (Sparx), Git (Distributed Version Control System)
Hardware Environment STM32F072 (ARM Cortex-M0), Rigol Oscilloscope, Multimeter

Active Front Steering

Project: January 2018 – June 2019 (18 months)

Description

Active front steering project for an American automobile manufacturer. Support of the software team in Berlin with the following tasks:

  • Safety Check – Rework of Software Architecture, Gap Analysis, Software Requirements, Test Vectors and Review of Unit Test Cases
  • Rootcausing – Incident Analysis, Impact Analysis, Implementation and Documentation of Software Changes
  • Golden Showcase – Exemplary revision of the software component ‘Steering Wheel Heating’ for takeover in an AutoSAR project
  • Design and implementation of a software for an endurance testbench to record time vs. distance data of a locking unit on USB mass storage (with a sampling rate of 10kHz)
  • Supervision of working students when creating a S-Function wrapper from software architecture

As early as 2012 to 2015, I was involved in the software development of the B-sample and C-sample at this company.

Summary

Project Active Front Steering
Duration January 2018 – June 2019 (18 months)
Customer confidential due to nondisclosure agreement
Industry Sector Automotive
Role / Responsibility Software Design, Implementation, Unit Tests, Code Reviews, static Code Analysis, Issue Analysis (System Level)
Software / Tools / Methods Enterprise Architect (Sparx), GHS C-Compiler (Green Hills), Atollic TrueSTUDIO for STM32, PC-lint (MISRA-C 2004 rules), PolySpace (MathWorks), CANdelaStudio (Vector), CANoe (Vector), DET (Ford), DOORS (IBM), JIRA (Atlassian)
Hardware Environment Freescale MPC5643 Dual-Core Microcontroller, Lauterbach Trace32 Debugger, CAN Interface Board (Vector), STM32F746ZI (ARM Cortex-M7), Light Grid Sensor, Laser Distance Sensor

Connectivity / IoT

May 2017 – December 2017 (8 months)

Description

The customer is one of the world’s leading companies for home appliances and the largest home appliance manufacturer in Europe. Support of the software project team ‘HomeConnect’ in Berlin with the following tasks:

  • Consulting in software development for embedded systems for the control and networking of washers, dryers and washer-dryers
  • Implementation of software architecture and software design
  • Analysis, conception and estimation of new requirements
  • Testing and consultation on the created software

Summary

Project Connectivity / IoT
Duration May 2017 – December 2017 (8 months
Customer confidential due to nondisclosure agreement
Industry Sector Industrial Manufacturer
Role / Responsibility Concept Design, Software Architecture, Software Design, Software Tests, Static Code Analysis, Issue Analysis
Software / Tools / Methods Enterprise Architect, Eclipse, IAR Workbench, Python, Py.test, PC-lint, Serena Dimensions CM, Subversion, BitBucket (git), Atlassian JIRA, JFrog Artifactory
Hardware Environment ‘Simulation’ on PC

Battery Management System

Project: June 2016 – March 2017 (10 months)

Description

The customer was developing an auxiliary energy storage (lithium ion battery) for FMA support (freewheel engine-off), start/stop operation and emergency support. My main tasks in the project were code reviews (based on checklists and coding rules), static code analysis (MISRA-C:2012 with QAC, Polyspace CodeProver, PC-lint), code quality measurements (HIS metrics with QAC and Polyspace BugFinder), justification of deviations, as well as issue analysis (problem reports on system level).

Summary

Project Battery Management System
Duration June 2016 – March 2017 (10 months)
Customer confidential due to nondisclosure agreement
Industry Sector Automotive
Role / Responsibility Concept Design, Software Design, Unit Tests (C1 Coverage), Code Reviews, Static Code Analysis, Issue Analysis
Software / Tools / Methods IBM Rational DOORS (IBM), STAGES Process Management (methodpark), Redmine Project Management (open source), Enterprise Architect (Sparx), QA-C/MISRA (PRQA), PC-lint (MISRA-C), Polyspace (MathWorks), Tessy (Hitex)
Hardware Environment Freescale MPC5606B (Bolero), ASIC Atic157 (proprietary)

UDS-based Communication Stack for Encoders

Project: August 2015 – May 2016 (10 months)

Description

Development of server-side application layer services according to ISO-14229 as part of a platform software for encoders. The work packet includes the following tasks:

  • Definition of software architecture components
  • Capturing the component requirements (in Polarion)
  • Creating the component and class design (in Enterprise Architect)
  • Implementation of source code modules in C, taking into account coding rules for safety-relevant software
  • Performing static code analysis with PC-lint (MISRA-C:2012)
  • Implementation of white-box tests with GoogleTest
  • Continuous Integration (Jenkins)
  • Documentation of the software modules using Doxgen comments and UML diagrams (activity diagrams, sequence diagrams, state charts)
  • Further development of the software architecture and source code modules of the platform software (persistent data memory, firmware update, HAL for SPI, on-chip flash, CRC-32)
  • HAL: code refactoring (Non-STLibrary)

Summary

Project UDS-based Communication Stack for Encoders
Duration August 2015 – May 2016 (10 months)
Customer confidential due to nondisclosure agreement
Industry Sector Industry / Heavy Duty Encoders
Role / Responsibility Software Design, Implementation, Documentation, Code-Reviews
Software / Tools / Methods Polarion ALM (Polarion Software), Enterprise Architect (Sparx), ARM GCC, SCons, Keil uVision 5, PC-lint (MISRA-C)
Hardware Environment STM32F0 (ARM Cortex-M0)

Inductive Coupler with CAN Interface

Project: June 2015 – July 2015 (2 months)

Description

Planning and creating of the firmware for a CAN repeater (quasi-repeater) as a plug replacement for sensor data acquisition in tunnel construction machines. CAN messages are converted to UART to transmit them via an air gap using a FSK modem. To supply the sensors in the drill head, the coupler provides 500mA of current.

Summary

Project Inductive Coupler with CAN Interface
Duration June 2015 – July 2015 (2 months)
Customer confidential due to nondisclosure agreement
Industry Sector Industrial Communication / Field Bus
Role / Responsibility Software Design, Implementation, Function Tests, Documentation, Order Processing
Software / Tools / Methods Atmel SAM4E Microcontroller, Rigol Oscilloscope, Multimeter, CAN Interface Boards (Peak, Vector, IXXAT)
Hardware Environment Atmel Studio (Version 6.2), Enterprise Architect (Sparx)

MacCAN – OS X Library for PCAN-USB Interfaces and more

Project: June 2012 – now (ongoing)

Description

The PCBUSB library realizes a ‘PCAN-USB Driver for OS X’ using Apple´s IOUSBKit. It supports up to 8 PCAN-USB and PCAN-USB FD devices from PEAK-System Technik, Darmstadt. The library offers an easy to use API to read received CAN messages from a 64K message queue and to transmit CAN messages. The PCAN-USB FD device can be operated in CAN Classic and CAN FD mode. Standard CAN frames (11-bit identifier) as well as extended CAN frames (29-bit identifier) are supported.
The library comes with an Objective-C wrapper and a demo application: MacCAN Monitor App.

Summary

Project MacCAN – OS X Library for PCAN-USB Interfaces and more
Duration June 2012 – now (ongoing)
Customer Own development (www.mac-can.com)
Industry Sector Industrial Communication / Field Bus
Role / Responsibility System Specifications, Software Architecture, Software Design, Implementation, Function Tests, Documentation
Software / Tools / Methods Enterprise Architect (Sparx), Apple LLVM (clang, x86_64), CUnit Test Framework, Doxygen, JIRA
Hardware Environment PCAN-USB Adapter (PEAK), PCAN-USB FD Adapter (PEAK)

Active Steering Wheel

Project: January 2012 – May 2015 (41 months)

Description

Active steering project for an American automobile manufacturer. Support of the project team in Berlin with the following tasks:

  • Implementation of the software design (modules)
  • Documentation of the modules and interfaces
  • Integration of software components
  • Design and execution of Unit Tests
  • Code Reviews

Summary

Project Active Steering Wheel
Duration January 2012 – May 2015 (41 months)
Customer confidential due to nondisclosure agreement
Industry Sector Automotive
Role / Responsibility Software Design, Implementation, Software Integration, Unit Tests, Code Reviews, Issue Analysis
Software / Tools / Methods Enterprise Architect (Sparx), GHS C-Compiler (Green Hills), PC-lint (MISRA-C 2004 rules), CANoe (Vector), DET (Ford), DOORS (IBM), FuSi (IEC 26262-6), Telcon / Webex / Workshop
Hardware Environment Freescale MPC5643 Dual-Core Microcontroller, Lauterbach Trace32 Debugger, CAN Interface Board (Vector)

Hardware Oriented Software Development

Project: December 2010 – December 2011 (13 months)

Description

Support of several development teams at the client’s site. My tasks included:

  • Development of hardware oriented software applications
  • Creation of hardware oriented drivers
  • Implementation of real-time operating systems on embedded platforms
  • Customization of BIOS and driver software
  • Project support from requirement engineering to validation

Work Batch 1: Analogue CAN Transmitter for Force Feedback Sidestick Control

The transmitter is used to transmit analogue and digital signals from a redundant sidestick control via the CAN bus. Through two physically connected sidesticks in the cockpit, the steering system, as well as the gas and brake systems, are controlled. From these systems, current angle data is transmitted back to the systems in the cockpit.

Task: Implementation of the transmitter software (CAN bus).

Work Batch 2: End-Of-Line Test Software for a Control Panel for Floor-borne Vehicles

The vehicles are optionally equipped with a Truck Data Unit (TDU). At the beginning of vehicle use, the driver identifies himself by means of an identification assigned to him (optionally via a keyboard with a PIN number or by means of a card reader with RFID identification) and thus indicates the use of the vehicle. When leaving the vehicle, the driver logs off.

Task: Implementation of the test software on the target for end-of-line testing of analog and digital I/O modules, memory devices (F-RAM, NAND-Flash, Data-Flash), LEDs, CAN-communication, matrix keyboard, wake-up function, card reader (RFID), Bluetooth module.

Work Batch 3: Compressed Download via CANopen

Control panel for blacktop paver with display and CAN interface. A CANopen bootloader handles software updates.

Task: Integration of the zlib inflate algorithm into existing boot loader.

Work Batch 4: SPI Bootloader for HVAC Front Panel

Front panel for climate control intended for a DIN radio slot. Control and display unit with integrated color display, illuminated buttons, and control dials. Communication with the main circuit board takes place via an SPI data bus system and controls all button and encoder inputs, as well as visualization of the display.

Tasks:
a.) Implementation of the bootloader (SPI slave).
b.) Implementation of test procedures.

Summary

Project Hardware Oriented Software Development
Duration December 2010 – December 2011 (13 months)
Customer confidential due to nondisclosure agreement
Industry Sector Automotive
Role / Responsibility System Specifications, Software Architecture, Software Design, Implementation, Function Tests, Documentation
Software / Tools / Methods Keil C166 C Compiler (uVision3), Keil ARM C Compiler (uVision4) , Microsoft Visual C++ 2008 , Enterprise Architect (Sparx) , PC-lint (MISRA-C 2004 rules) , Understand (SciTools) , CAN Analyser (IXXAT) , Doxygen, Python
Hardware Environment Infineon XC164CS Microcontroller, Infineon XC2368B Microcontroller, NXP LPC2478 (ARM7/TDMI-S core), Keil U-Link On-chip Debugger, CAN Interface Boards (IXXAT), SPI-to-USB Adapter (Elite)