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 14050 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14051 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14093 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14094 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14095 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14096 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14097 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14099 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14100 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14102 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14098 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14107 - Line: 912 - File: showthread.php PHP 8.1.27 (Linux)
File Line Function
/showthread.php 912 errorHandler->error
Warning [2] Undefined array key 14050 - 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 14051 - 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 14093 - 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 14094 - 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 14095 - 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 14096 - 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 14097 - 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 14099 - 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 14100 - 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 14102 - 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 14098 - 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 14107 - 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 "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



Forums › Project › Development v
Engine friction model

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Thread Modes
Engine friction model
08-05-2012, 01:13 PM,
#1
NaN Offline
Posting Freak
*****
 		Posts: 2,024
Threads: 120
Joined: Jan 2010
Engine friction model
I've been working on the new simulation implementation again, trying to understand a very snappy off-throttle oversteer that rwd cars exhibit.

Current vdrift implementation also has this issue, although not as pronounced due to slippy clutch(at low rpm especially). The clutch in the new implementation does lock properly and exaggerates the effect.

It seems to be caused by engine friction(braking). The torque is strong enough to kill rear wheels grip when coasting along a straight line(clutch locked, throttle off).

Thus I think the used equation/approximation might be the problem. I've been wondering if there are some "plausible" simple engine friction models to look at? Even a few numbers would help just to get an idea, fix current equation.
Find
Reply


Messages In This Thread
Engine friction model - by NaN - 08-05-2012, 01:13 PM
[No subject] - by NaN - 08-05-2012, 01:56 PM
[No subject] - by NaN - 08-17-2012, 11:56 AM
[No subject] - by NaN - 08-17-2012, 12:56 PM
[No subject] - by NaN - 08-17-2012, 04:56 PM
[No subject] - by NaN - 08-17-2012, 06:55 PM
[No subject] - by NaN - 08-18-2012, 04:08 AM
[No subject] - by NaN - 08-18-2012, 10:13 AM
[No subject] - by charlieg - 08-18-2012, 12:30 PM
[No subject] - by NaN - 08-18-2012, 06:57 PM
[No subject] - by joevenzon_phpbb2_import3 - 08-20-2012, 11:28 AM
[No subject] - by NaN - 08-20-2012, 12:24 PM

Forum Jump:


Users browsing this thread: 1 Guest(s)