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    Nice job !

    For a first round experiment, this looks very good ! First suggestion would be to improve/reduce speed variation. With constant speed, you eliminate a very important state variable.

    Next...
  2. Pacejka Lounge

    What happens in the Lounge should stay in the lounge. It is obviously flawed. SNAFU.

    I can and will help you with this, but the conversation must take place in the TTC forum, otherwise Gods...
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    The General Rules:

    The general rule is that there is actually one ONE steering gear mount. This mount is used to deliver the prescribed transmissibility, understeer, durability and crash barrier intrusion.

    Forbidden...
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    Rack 'em Up

    Here are my thoughts based on 40 years in the industry:

    Weight: sure. Some will believe the sprung C.G. location will benefit.

    Ratio: There is no such thing as a 'steer ratio' with a rack &...
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    Balancing Steering Gain Against Steering Wheel Torque

    Actually, there is a well correlated factor "Steering Work Gain Sensitivity" that Ken Norman references in his paper:

    K.D. Norman, Objective Evaluation of On-Center
    handling Performance, SAE...
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    Mo Better Bass

    This one's still my favorite: Measured understeer of my boat. (The fix for it is a 5 blade Mercury Hi-Five ported prop. K=slightly negative).

    All you need is forward speed and yaw velocity...
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    One more Beauty Shot. We are limited to only 5 at...

    One more Beauty Shot. We are limited to only 5 at a time...1342
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    Yawn Moments

    I always take a pragmatic approach to working these situations, so, here goes:

    I believe in using analysis and synthesis techniques that have Face Validity. My evaluations, testing and problem...
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    While You are at It

    I wold be interested in the details (parameters) used in your model:

    front and rear weights
    wheelbase
    tire brand, size, pressure, rim-width (assuming TTC data is available). [don't need the data...
  10. Mo Betta C & S

    Fun with data mining. Sort of makes a 4 cyl a good place to start, eh ? Which event section gets the most Brownie P1333oints ?
  11. 2018 vs. 2017

    Comparison(s)1332
  12. 2017 Cars by Weight and Displacement example

    Until I figure out how to add images to the reddit forum, here is an example of the plot labeling I mentioned. User selectable and removable labels with pertinent data.1328

    Done with:
    ...
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    Pass Me a Joint

    Your's car's 'steering effort' problem is a design issue, not a disease. A couple of questions, first:

    Who are you and what team ? (To beat Claude to the question).

    What are the measurements...
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    No kidding ?

    Well of course there is/will be TTC tested data. I'd also want the see the results that GOODYEAR has produced on THEIR OWN machinery back in Ohio or Luxemburg or Terra Del Fuego, etc.

    This would...
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    In God we trust, everybody else bring data.

    I would hope that some usable force & moment data would accompany the purchase of these tires. Would make a handy comparison to the TIRF equivalent.
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    The 2 processes are essentially interchangeable. ...

    The 2 processes are essentially interchangeable. Each one promotes a set of constitutive describing functions based on gain, damping and natural frequency. What makes FSAE cars so special is their...
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    Steer under or steer over ?

    A good question about the UG you probably ought to determine for the sake of beating up those design judges who are way out of their element.

    Just the facts, Ma'am:

    1) Constant speed...
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    Compromise Course Map Proposal

    I just discussed this issue with a good friend of mine (John Carriere - SCCA Nationals Autocrosser). He has also been a Design Judge at MIS in past years.

    John suggests that FSAE release a 'Track...
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    Top Team Performance

    There is still 'room' to modify top team scores:

    1) So it's an "Impact Attenuator" ? OK, drop the car from an overhead fixture (crane) and see how well a nose down punch really does. Criteria...
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    Visual Sudio

    My best memories are watching right in front of you an F1 car approching a small radius turn at maximum decel. You are in dis-belief that the car is seems to be going WAY too fast to even survive...
  21. Shocking

    No question that such a system can allieviate a limited psd spectrum of roadway bumps and holes. Our findings with the Lotus Active and Bose "Voice Coil" actuation were that owners will increase...
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    Chimney Sweep

    A camber sweep is not uncommon. It's for "answering the question". Would not be run at zero slip angle.1311
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    TIRF Wars

    Someone should check with TIRF to see if they can 'handle' this size. Because they can incline only 1 way because of spindle head real estate, the test procedure for these small tires needs to...
  24. Powered by di-Litrhium Crystals

    Keep in mind that the Global markets are all heading to electric vehicles. The energy consumption of this Bose system derivative is enormous and is a range killer. My suggestion is to contemplate...
  25. Bose

    Yep.13061307
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