> For the complete documentation index, see [llms.txt](https://2023.istvs.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://2023.istvs.org/submissions/papers/5552.md). # 5552 / Vehicle drawbar test method with improved measurement and control Paper presented at the 16th European-African Regional Conference of the ISTVS Title: Vehicle drawbar test method with improved measurement and control Authors: Orian Welling, Zach Tomberg, and Mike Stearns Abstract: In this work, we show a new vehicle drawbar test method that allows simple regulation of a constant vehicle speed through the test while requiring relatively little training or practice from the test vehicle driver. The improved method relies on a capstan winch mounted on a fixed stable point with a controlled release of cable over a 600 foot distance. The winch and cable are capable of sustaining loads up to 20,000lbs at a constant cable speed. The load on the cable is measured with a vehicle mounted load cell. In the paper / presentation, we show a comparison of test data from drawbar tests utilizing a separate holdback vehicle and holdback driver with tests using the new methodology and show that measurement stability is improved and that the target vehicle speed is held much closer to the target point, eliminating error or need to correct for vehicle acceleration. Order the full paper: ISTVS members: receive three papers per year as part of your membership via the ISTVS Member Portal: --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://2023.istvs.org/submissions/papers/5552.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.