During the development of electromechanical steering, safety analyses are needed whose results have a crucial impact on the development process. Safety requirements therefore need to be drawn up, and architectural features examined. This ensures that the risk from the system remains limited to an acceptable level.

Safety appraisals have shown that the steering functions need to be monitored to allow random errors to be detected in non-redundant hardware.

The project contains the development of EPS (Electric Power Steering) for adaptive steering design (e.g. sports mode) and for taking assistance systems into account (e.g. parking assistant). Software is needed to situation-appropriately operate the actuators on the axle. Software control functions are also needed to ensure the required level of safety.

etamax space supports the creation of documents in the safety process. Other work packages involve verification of parts of the product in the development process, as well as the validation of the steering system after integration into the target vehicle.

  • Design and implementation of software monitoring functions in the control units (Embedded C)
  • Software and hardware in-the-loop tests
  • Creation of test cases, preparation and execution
  • Safety management
  • Support in error and software change management, review and release process
Customer:

Volkswagen

Tasks:
  • Risk assessments
  • Safety analyses
  • Safety requirements, requirements tracing
  • Safety  plan
  • Safety  concept
  • Verification, validation
  • Test specification, execution and assessment of tests
Techniques and Tools:
  • IEC 61508, ISO 26262
  • embedded C
  • DOORS
  • CM, CS Synergy