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- Title
General Motors Optimizes Its Scheduling of Cold-Weather Tests.
- Authors
Chih-Cheng Hsu; De Blois, Yvan; Pyle, Murray James
- Abstract
The General Motors Cold Weather Development Center is responsible for performing vehicle road tests under excessively cold weather conditions; each vehicle must undergo a specified number of tests under various temperatures in specified sequences. The center usually completes a vehicle's tests over several weeks based on such factors as the number of days cold enough to provide meaningful results. The center prepares a master test schedule daily with the goals of maximizing overall efficiency, assigning enough tests to each vehicle, and respecting operating constraints. To address this scheduling problem, we developed a decision-support tool with a specialized heuristic. Implementing the tool improved throughput by more than 100 percent and saved millions of dollars in vehicle warranty cost.
- Subjects
AUTOMOBILE testing; GENERAL Motors Corp.; AUTOMOBILE inspection; OPERATIONS research; WARRANTY
- Publication
Interfaces, 2004, Vol 34, Issue 5, p334
- ISSN
0092-2102
- Publication type
Article
- DOI
10.1287/inte.1040.0067