Ford Customer Service Division, in order to ensure that Service targets can be achieved on final vehicle design, carries out a wide range of service checks throughout the development cycle of a vehicle. A critical point, of course, is to resolve service issues for key components like the AC compressor as soon as possible in the design process. Typically, AC compressor removal is one of the key checks undertaken.
Technical Issues and Challenges
Validating the extraction feasibility for the compressor is the key part of the Serviceability Study so it is also important to precisely assess the robustness of the extraction path result including any production tolerance variation. Moreover, due to ongoing design development, it is often necessary to repeat removal studies several times as the design evolves either at a component level (the AC compressor itself) or at a package level (surrounding items with close proximity to the AC compressor). The ability to document the results (snapshots, movies) with high quality rendered Images for effective communication purposes is the final challenge of a successful Serviceability Study.
Before working with Kineo Path PlannerTM, we used to manually move the compressor along a desired extraction path within a VisMockup session containing items close to the compressor that would influence the removal process and then to check the extraction path validity with the dynamic collision functionality. Beyond the time required to complete the removal study, the challenge in the process was to identify and communicate precise design change information (when removal was not feasible) so as to lead to the issue resolution. If a removal path had been found, there was no chance to easily and quickly analyse the path with different tolerance values. Furthermore, with no possibility to re-use the path from the initial check, repeating the study (for instance after a design modification) was the only viable method of validating a design change and was just as time consuming as the initial check. Different results would be obtained by different users for the same study.
Removal Study with traditional tools
- Time for first removal study : 4 hours
- Time for repeating removal study : 3 hours
Removal Study with Kineo Path PlannerTM
- Time for first removal study : 2 hours
- Time for repeating removal study : 1 hour
Service check with Kineo Path Planner
Today, with Kineo Path PlannerTM, we directly import from the VisMockup session JT files representing the compressor and the obstacles and we launch the powerful “Automatic Path Planning” capability of the tool in order to asses the extraction feasibility for the compressor. If no removal solution exists, we can easily identify and document the bottlenecks for a precise communication of design changes. If the compressor removal proves to be feasible, we save the path extraction result for eventual future re-use on repeating studies so as to speed up the search. From a path result, we can also rapidly assess different scenarios with differing tolerances/obstacles and repeat the study to assess robustness of extraction path result.
Here are the main benefits of using Kineo Path PlannerTM for our Serviceability studies
- Different users achieve very similar results
- Confidence in results is high in all cases due to the ease and speed with which it is possible to re-run the solution with differing tolerances/obstacles allowing different scenarios to be assessed
- Repeat studies are speeded up with the re-use of the previous path (1h instead of 3h before).
About Kineo Path Planner
Kineo Path Planne(TM) is a software tool specialized in finding and generating collision-free trajectories in a totally automatic way within a highly constrained 3D environment.
It perfectly fits in your current CAD/PDM methodology and environment thanks to direct data exchange capabilities and therefore ideally complements the existing tools for diverse assembly/disassembly studies throughout the whole vehicle design cycle.
About Kineo C.A.M.
Kineo C.A.M., based in Toulouse, France, is a spin-off company from the LAAS/CNRS (French National Center of Scientific Research). Active worldwide in the automotive and aerospace industries, Kineo C.A.M. develops, markets and supports best-in-class path planning solutions that rely on 15 years research and dramatically improve the computation of automated collision free path finding for digital mock-ups.
For more information, visit www.kineocam.com or send an email to firstname.lastname@example.org