KÄRCHER experience report

KÄRCHER, a global provider of cleaning technology, uses the PROTOS miniHIL test system to efficiently test the software for its various product lines.

"miniHIL at Kärcher makes the difference!"

Dominik Wenning, Manager Embedded Software & Testing, Alfred Kärcher SE & Co. KG

Our problem

As a global provider of cleaning technology, we have a wide range of different products that we need to develop quickly and to a high standard of quality.

The solution

The miniHIL test system from PROTOS helps us to test all product variants early and comprehensively throughout the entire development process.

The benefits of miniHIL:

  • Generalisation of the test setup for all products (product lines/variant testing)
  • Lean and fast test development
  • Complete test automation from the desk to continuous integration
  • Very fast test execution after every software change (within minutes)
  • We can use miniHIL for all product categories
  • Very small setup – fits on the developer’s workstation and in a server cabinet for all projects – many boards in a small space
  • Test setup requires no safety measures (no HW compliance, no laboratory, no extinguishing equipment)
  • Quick training of new colleagues thanks to good documentation
  • Short-term, competent support from PROTOS

Project example: Test for hot water high-pressure cleaners (Professional Series)

  • Complete testing of the software functionality of all product variants
  • Full testing of the software, including all drivers on the correct microcontroller
  • Complete environment simulation (e.g. simulation of 3-phase current measurement for shutdown)
  • Testing of functions that can no longer be achieved in the system test
  • Testing of all interfaces (IOs, CAN, LIN, PWMs, etc.)
  • Testing of the software functionality of all product variants Heisswasser-Hochdruckreiniger (KÄRCHER Professional Serie)

KÄRCHER website