Unexpected velocity and slip outputs from longitudinal vehicle model

1 次查看（过去 30 天）
Kishan Makwana
Kishan Makwana 2017-11-18
回答： Steve Miller 2023-5-9
Aim of the model is to convert an axle torque of a primitive 4 wheel drive vehicle into a vehicle velocity and monitor the slip in the tyres as a function of time. I have since found that this is very similar to the sdl_vehicle_4wd model in the Driveline Example library.
Even in the simplest simulation where I feed in a constant axle torque signal (4000Nm), I get a very messy vehicle velocity and slip output (on the order of 10^-32 in respective units) which is not what I was hoping for. The torque sensor does however reflect in the input signal correctly.
That said, when I comment out the torque sensor, it alters the simulation: it fails to converge to a solution in the first 8e-4s.
Would anyone be able to explain these results and how I could fix my model to get more realistic outputs.

请先登录，再回答此问题。

回答（1 个）

Steve Miller
Steve Miller 2023-5-9
Your torque sensor needs to be connected in series with the torque source. You have it connected in parallel. See corrected model below.
--Steve

类别

在 Help Center 和 File Exchange 中查找有关 Tires and Vehicles 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by