Following Cadence Design Systems’ acquisition of the Design & Engineering (D&E) business, the D&E Community Forum on the Nexus Community Center has been migrated in the Cadence Physical System Simulation Community. For more details and if you have any questions, please refer to the FAQ.

Stats

  • State Not Answered
  • Replies 6
  • Subscribers 1
  • Views 3
  • Members are here 0
More Content

How to simulate the Slalom maneuver in A/Car

viktor.kulagin
Hello
I want to simulate the Slalom maneuver (which means driving between the cones located with equal interval).
First, I tried to set up the Sine-Sweep Steer according to Slalom characteristics. I mean, to find correct values of steer frequency and steering angle to ensure model riding with proper lateral displacement (which more than a half of car width, obviously). But the path of the model (when you check it in a postprocessor) doesn't look like as desired to be (in a picture attached). There is an explanation for this issue, I know
So, Sine-Swept Steer maneuver doesn't meet the requirements.
I remember that one day I found a picture of the FVA staying on a road with cones (for slalom maneuver, I suppose). So, there must be a tool to build this road. But I didn't find anything looks like a cone in Obstacles menu in Road Builder.
If you know how to simulate the slalom maneuver, please, tell me about it.
Thank you in advance.
Attached Files (1)
Parents
  • 0
    I think you'll find if you measure yourself driving a slalom, the first cycle is not a sine wave but rather a cosine step. You can explore these ideas with an Excel spreadsheet and a geometric vehicle model before wasting a lot of time solving inside ADAMS. When you figure out the geometric input you can put it into ADAMS.
     
    Alternatively, and particularly if your manoeuvre is in the non-linear region, you will need closed-loop control as Jesper says.
     
    Plan C is to ignore the compass heading error in the model and only analyse the "developed" part of the slalom.
     
    Only you can decide which of these solutions suit you because only you know what is the problem to which this model is the solution.
Reply
  • 0
    I think you'll find if you measure yourself driving a slalom, the first cycle is not a sine wave but rather a cosine step. You can explore these ideas with an Excel spreadsheet and a geometric vehicle model before wasting a lot of time solving inside ADAMS. When you figure out the geometric input you can put it into ADAMS.
     
    Alternatively, and particularly if your manoeuvre is in the non-linear region, you will need closed-loop control as Jesper says.
     
    Plan C is to ignore the compass heading error in the model and only analyse the "developed" part of the slalom.
     
    Only you can decide which of these solutions suit you because only you know what is the problem to which this model is the solution.
Children
No Data
Cadence Guidelines

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.