The following warnings occurred:
Warning [2] Undefined array key "lockoutexpiry" - Line: 94 - File: global.php PHP 8.1.27 (Linux)
File Line Function
/global.php 94 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined array key "lockoutexpiry" - Line: 573 - File: global.php PHP 8.1.27 (Linux)
File Line Function
/global.php 573 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined variable $can_access_moderationqueue - Line: 752 - File: global.php PHP 8.1.27 (Linux)
File Line Function
/global.php 752 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined array key "avatartype" - Line: 892 - File: global.php PHP 8.1.27 (Linux)
File Line Function
/global.php 892 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined array key "avatartype" - Line: 892 - File: global.php PHP 8.1.27 (Linux)
File Line Function
/global.php 892 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined variable $awaitingusers - Line: 34 - File: global.php(959) : eval()'d code PHP 8.1.27 (Linux)
File Line Function
/global.php(959) : eval()'d code 34 errorHandler->error
/global.php 959 eval
/showthread.php 28 require_once
Warning [2] Undefined array key "style" - Line: 1024 - File: global.php PHP 8.1.27 (Linux)
File Line Function
/global.php 1024 errorHandler->error
/showthread.php 28 require_once
Warning [2] Undefined property: MyLanguage::$lang_select_default - Line: 5308 - File: inc/functions.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions.php 5308 errorHandler->error
/global.php 1024 build_theme_select
/showthread.php 28 require_once
Warning [2] Undefined array key 1 - Line: 1474 - File: inc/functions.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions.php 1474 errorHandler->error
/inc/functions.php 1429 fetch_forum_permissions
/showthread.php 103 forum_permissions
Warning [2] Undefined array key 1 - Line: 1474 - File: inc/functions.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions.php 1474 errorHandler->error
/inc/functions.php 1439 fetch_forum_permissions
/inc/functions.php 3077 forum_permissions
/showthread.php 661 build_forum_jump
Warning [2] Undefined array key 1 - Line: 1474 - File: inc/functions.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions.php 1474 errorHandler->error
/inc/functions.php 1439 fetch_forum_permissions
/inc/functions.php 3077 forum_permissions
/showthread.php 661 build_forum_jump
Warning [2] Undefined array key 1 - Line: 1474 - File: inc/functions.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions.php 1474 errorHandler->error
/inc/functions.php 1439 fetch_forum_permissions
/inc/functions.php 3077 forum_permissions
/showthread.php 661 build_forum_jump
Warning [2] Undefined array key 1 - Line: 1474 - File: inc/functions.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions.php 1474 errorHandler->error
/inc/functions.php 1439 fetch_forum_permissions
/inc/functions.php 3077 forum_permissions
/showthread.php 661 build_forum_jump
Warning [2] Undefined array key 1 - Line: 1474 - File: inc/functions.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions.php 1474 errorHandler->error
/inc/functions.php 1439 fetch_forum_permissions
/inc/functions.php 3077 forum_permissions
/showthread.php 661 build_forum_jump
Warning [2] Undefined array key 1 - Line: 1474 - File: inc/functions.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions.php 1474 errorHandler->error
/inc/functions.php 1439 fetch_forum_permissions
/inc/functions.php 3077 forum_permissions
/showthread.php 661 build_forum_jump
Warning [2] Undefined array key 1 - Line: 1474 - File: inc/functions.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions.php 1474 errorHandler->error
/inc/functions.php 1439 fetch_forum_permissions
/inc/functions.php 3077 forum_permissions
/showthread.php 661 build_forum_jump
Warning [2] Undefined array key "mybb" - Line: 2121 - File: inc/functions.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions.php 2121 errorHandler->error
/inc/functions_indicators.php 41 my_set_array_cookie
/showthread.php 669 mark_thread_read
Warning [2] Undefined variable $postsdone - Line: 906 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 906 errorHandler->error
Warning [2] Undefined array key 9426 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9427 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9429 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9432 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9433 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9434 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9436 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9438 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9439 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9440 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9441 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9442 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9443 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9450 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9452 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9453 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9456 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9458 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9459 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9462 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 9426 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9427 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9429 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9432 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9433 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9434 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9436 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9438 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9439 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9440 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9441 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9442 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9443 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9450 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9452 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9453 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9456 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9458 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9459 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key 9462 - Line: 1643 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1643 errorHandler->error
/showthread.php 924 buildtree
Warning [2] Undefined array key "profilefield" - Line: 6 - File: inc/functions_post.php(484) : eval()'d code PHP 8.1.27 (Linux)
File Line Function
/inc/functions_post.php(484) : eval()'d code 6 errorHandler->error
/inc/functions_post.php 484 eval
/showthread.php 925 build_postbit
Warning [2] Undefined array key "canonlyreplyownthreads" - Line: 672 - File: inc/functions_post.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions_post.php 672 errorHandler->error
/showthread.php 925 build_postbit
Warning [2] Undefined array key "showimages" - Line: 768 - File: inc/functions_post.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions_post.php 768 errorHandler->error
/showthread.php 925 build_postbit
Warning [2] Undefined array key "showvideos" - Line: 773 - File: inc/functions_post.php PHP 8.1.27 (Linux)
File Line Function
/inc/functions_post.php 773 errorHandler->error
/showthread.php 925 build_postbit
Warning [2] Undefined array key 1 - Line: 866 - File: inc/class_parser.php PHP 8.1.27 (Linux)
File Line Function
/inc/class_parser.php 866 errorHandler->error
/inc/class_parser.php 938 postParser->mycode_parse_post_quotes
[PHP] postParser->mycode_parse_post_quotes_callback1
/inc/class_parser.php 816 preg_replace_callback
/inc/class_parser.php 451 postParser->mycode_parse_quotes
/inc/class_parser.php 201 postParser->parse_mycode
/inc/functions_post.php 785 postParser->parse_message
/showthread.php 925 build_postbit
Warning [2] Undefined array key 1 - Line: 885 - File: inc/class_parser.php PHP 8.1.27 (Linux)
File Line Function
/inc/class_parser.php 885 errorHandler->error
/inc/class_parser.php 938 postParser->mycode_parse_post_quotes
[PHP] postParser->mycode_parse_post_quotes_callback1
/inc/class_parser.php 816 preg_replace_callback
/inc/class_parser.php 451 postParser->mycode_parse_quotes
/inc/class_parser.php 201 postParser->parse_mycode
/inc/functions_post.php 785 postParser->parse_message
/showthread.php 925 build_postbit
Warning [2] Undefined array key "posttime" - Line: 9 - File: inc/functions_post.php(906) : eval()'d code PHP 8.1.27 (Linux)
File Line Function
/inc/functions_post.php(906) : eval()'d code 9 errorHandler->error
/inc/functions_post.php 906 eval
/showthread.php 925 build_postbit
Warning [2] Undefined array key "avatar_padding" - Line: 19 - File: inc/functions_post.php(906) : eval()'d code PHP 8.1.27 (Linux)
File Line Function
/inc/functions_post.php(906) : eval()'d code 19 errorHandler->error
/inc/functions_post.php 906 eval
/showthread.php 925 build_postbit
Warning [2] Undefined array key "invisible" - Line: 1568 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 1568 errorHandler->error
Warning [2] Undefined variable $threadnotesbox - Line: 33 - File: showthread.php(1600) : eval()'d code PHP 8.1.27 (Linux)
File Line Function
/showthread.php(1600) : eval()'d code 33 errorHandler->error
/showthread.php 1600 eval
Warning [2] Undefined variable $multipage - Line: 36 - File: showthread.php(1600) : eval()'d code PHP 8.1.27 (Linux)
File Line Function
/showthread.php(1600) : eval()'d code 36 errorHandler->error
/showthread.php 1600 eval
Warning [2] Undefined variable $multipage - Line: 68 - File: showthread.php(1600) : eval()'d code PHP 8.1.27 (Linux)
File Line Function
/showthread.php(1600) : eval()'d code 68 errorHandler->error
/showthread.php 1600 eval
Warning [2] Undefined variable $addremovesubscription - Line: 82 - File: showthread.php(1600) : eval()'d code PHP 8.1.27 (Linux)
File Line Function
/showthread.php(1600) : eval()'d code 82 errorHandler->error
/showthread.php 1600 eval
Warning [2] Undefined variable $thread_deleted - Line: 104 - File: showthread.php(1600) : eval()'d code PHP 8.1.27 (Linux)
File Line Function
/showthread.php(1600) : eval()'d code 104 errorHandler->error
/showthread.php 1600 eval




Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Engine and wheel inertia
07-19-2009, 03:20 PM,
#10
 
stan.distortion Wrote:
Quote:So, you're saying that with the lower spring rates the cars behave more realistically (including body roll)?
Made a big difference here, after a bit of messing around 45000 front and 35000 rear for the C7 seems about right so nearer 60% than 30%

Sounds like a good change. Do you have a sourceforge account? I could give you access to the data repo, if you want to check in your changes. I don't think anyone is actively tuning the cars at the moment (speak up if you are).

Quote:Probably a horrendous bodge but changing cardynamics.cpp@43 seems to sort out the engine inertia thing

I looked into this more and you're right, there is a bug where the engine inertia isn't taken into account when in-gear. Your change is very nearly right, but I don't think it's quite right; the way you have it, I'm not sure the engine gets the proper drag from the wheels. This change to carclutch.h gives the correct behavior:
Code:
T GetTorque ( T n_engine_speed, T n_drive_speed )
        {
            engine_speed = n_engine_speed;
            drive_speed = n_drive_speed;
            
            T normal_force = clutch_position * max_pressure * area;
        
            /*if (std::abs (engine_speed - drive_speed) < threshold * normal_force)// || clutch_position >= 1.0)
            {
                engaged = true;
                last_torque = 0.0;
                return 0.0;
            }
            else*/
                engaged = false;
        
            T force = sliding_friction * normal_force;
            if (engine_speed < drive_speed)
                force = -force;
        
            //compute torque by applying force at the radius
            last_torque = force * radius;
            return force * radius;
        }
However, the fix above causes the engine RPMs to jitter a bit around the fixed value because the clutch friction is always over correcting slightly. It's hardly noticeable but bugs me a bit so I'm going to see if I can't come up with something fancier (maybe preventing the clutch friction from over-correcting, or maybe adding the engine inertia to the inertia of the drive wheels when in-gear).

Quote:Quick question, where does the wheel mass get applied to the momentum?
I have tried messing around with the mass and inertia and a wheel mass of 35 and inertia of 2.5 gives something similar to a mass of 15 and inertia of 6 but I can't find where the mass effects momentum or inertia.
cheers

The tire rotational-inertia parameter (from the .car file) sets the wheel's inertia (in the code). The wheel's mass parameter isn't used for the wheel's inertia. If you're adjusting the wheel mass and it's causing different behavior, I don't understand how either... although of course a higher mass wheel will make the car weigh more and so it'll get very slightly more grip.
Reply


Messages In This Thread
Engine and wheel inertia - by stan.distortion - 07-16-2009, 02:32 PM
[No subject] - by stan.distortion - 07-16-2009, 06:26 PM
[No subject] - by stan.distortion - 07-17-2009, 01:01 PM
[No subject] - by joevenzon_phpbb2_import3 - 07-17-2009, 06:40 PM
[No subject] - by joevenzon_phpbb2_import3 - 07-17-2009, 07:00 PM
[No subject] - by joevenzon_phpbb2_import3 - 07-17-2009, 07:02 PM
[No subject] - by stan.distortion - 07-18-2009, 09:30 AM
[No subject] - by joevenzon_phpbb2_import3 - 07-18-2009, 08:12 PM
[No subject] - by stan.distortion - 07-19-2009, 09:12 AM
[No subject] - by joevenzon_phpbb2_import3 - 07-19-2009, 03:20 PM
[No subject] - by stan.distortion - 07-19-2009, 04:21 PM
[No subject] - by stan.distortion - 07-19-2009, 05:03 PM
[No subject] - by joevenzon_phpbb2_import3 - 07-19-2009, 11:20 PM
[No subject] - by stan.distortion - 07-21-2009, 04:05 PM
[No subject] - by stan.distortion - 07-22-2009, 04:47 PM
[No subject] - by stan.distortion - 07-22-2009, 08:53 PM
[No subject] - by joevenzon_phpbb2_import3 - 07-22-2009, 10:26 PM
[No subject] - by stan.distortion - 07-23-2009, 02:33 AM
[No subject] - by stan.distortion - 07-23-2009, 04:39 AM
[No subject] - by joevenzon_phpbb2_import3 - 07-27-2009, 12:24 AM

Forum Jump:


Users browsing this thread: 1 Guest(s)