BIU TRNG THI

nh ngha

Biu trng thi ca mt h truyn ng- t ng kh nn l mt biu th hin di dng quy c gi tr ca tt c cc tn hiu iu khin v trng thi ca tt c cc c cu chp hnh ca h truyn ng trong tng bc cng ngh v trong ton b chu trnh cng ngh hot ng c p t.

H TRUYN NG-T NG KH NNBIU TRNG THI HOT NG S NGUYN L KH NN G(0) = 1000 = 8G(1) = 1010 = 10G(2) = 0100 = 4G(3) = 1001 = 9G(4) = 0100 = 4

S LOGIC IU KHIN HOT NG H TRUYN NG-T NG KH NN

PHN TCH V LP BIU TRNG THI HOT NG

H TRUYN NG KH NN IU KHIN KT HP S NGUYN L KH NN

BIU TRNG THI V S LOGIC IU KHIN HOT NG H TRUYN NG KH NN IU KHIN KT HP

H TRUYN NG KH NN IU KHIN KT HP CC BIU THC HM IU KHIN

H TRUYN NG KH NN IU KHIN KT HP S LOGIC IU KHIN

PHN TCH V LP BIU TRNG THI HOT NG

H TRUYN NG KH NN IU KHIN THEO TNG S NGUYN L KH NN

H TRUYN NG KH NN IU KHIN BNG CC B M S NGUYN L KH NN

H TRUYN NG KH NN IU KHIN BNG CC B M BIU TRNG THI HOT NG

H TRUYN NG KH NN IU KHIN BNG CC B M S LOGIC IU KHIN HOT NG

H TRUYN NG KH NN IU KHIN BNG CC B M S LOGIC IU KHIN HOT NG

H TRUYN NG KH NN IU KHIN BNG IN S NGUYN L KH NN S NGUYN L (IN) IU KHIN

S LOGIC IU KHIN BIU TRNG THI H TRUYN NG KH NN IU KHIN BNG IN

+ s c cu chp hnh : 02 (hai), l cc xy lanh tc ng hai pha;+ s van phn phi chnh : 01(mt)- chn loi van iu khin hai pha bng kh nn;+ s cng tc hnh trnh c s dng: 04 (bn)- chn loi thng ngt , iu khin c;+ s cng tc khi ng: 01 (mt)-chn loi thng ngt, iu khin tay, lm vic theo kiu ON-OFF;+ s b tr c s dng: 01 (mt).+ s tn hiu iu khin chnh: 05 (nm) tn hiu, bao gm: a0 , a1 , b0 , b1 , START; + s tn hiu iu khin trung gian l 01(b tr t).TNG HP H TRUYN NG KH NN THEO BIU TRNG THI HOT NG BIU TRNG THI CHO (DNG RT GN)

TNG HP H TRUYN NG KH NN THEO BIU TRNG THI HOT NG XY DNG S LOGIC IU KHIN

TNG HP H TRUYN NG KH NN THEO BIU TRNG THI HOT NG XY DNG BIU TRNG THI (Y ) CA H T-TKN

TNG HP H TRUYN NG KH NN THEO BIU TRNG THI HOT NG XY DNG S NGUYN L KH NN

TNG HP H TRUYN NG KH NN THEO BIU TRNG THI HOT NG XY DNG S NGUYN L KH NN (H TRUYN NG - T NG)

V D: Cn xy dng h truyn ng kh nn cho mt my dp kh nn vi cc iu kin lm vic nh sau:+ iu khin bng kh nn;+ chiu hnh trnh lm vic: t trn xung (p sn phm v tr cui hnh trnh);+ thi gian gi p khi p sn phm: 1,5 s;+ khi cha lm vic, u p phi lun c gi v tr tn cng trn, khi p sn phm xong, u p phi lp tc t ng tr li v tr trn;+ phi m bo an ton tuyt i cho ngi vn hnh my, c th, khng cho php th tay, th u, hoc cc can thip khc vo vng lm vic ca my nu n ang hot ng;+ cho php dng my khn cp khi c s c.TNG HP H TRUYN NG KH NN THEO CC IU KIN LM VIC CHO D KIN CHO TNG HP H TKN

1) Nhn xt v phn tch d kin cho:

2) Xc nh s c cu chp hnh kh nn v s cc tn hiu iu khin (tn hiu ngoi) cn iu khin hot ng ca h truyn ng ca my p:+ s c cu chp hnh: 01 (mt)- xy lanh kh nn tc ng hai pha;+ s tn hiu iu khin chnh:02 tn hiu t 02 cng tc hnh trnh, k hiu l a0 ,a1 ;02 tn hiu t 02 cng tc khi ng, k hiu l ST1, ST2;01 tn hiu t 01 cng tc ca an ton, k hiu l GUARD;01 tn hiu t cng tc dng khn cp, k hiu l EM.ST.;3) Xc nh cc tn hiu iu khin trung gian (tn hiu trong), gm: + 01 tn hiu t b gi chm, ta k hiu l T ; + 02 tn hiu iu khin trc tip van phn phi tng ng vi cc hnh trnh i xung v i ln ca pt tng mang u p, khiu ln lt l A1, A0. PHN TCH D KIN CHO V XC NH CC THK HOT NG CA H TKNTNG HP H TRUYN NG KH NN THEO CC IU KIN LM VIC CHO

XY DNG HM IU KHIN V S LOGIC IU KHIN HOT NG CA H TKN TNG HP H TRUYN NG KH NN THEO CC IU KIN LM VIC CHO

XY DNG BIU TRNG THI HOT NG CA H TKN TNG HP H TRUYN NG KH NN THEO CC IU KIN LM VIC CHO

XY DNG S NGUYN L KH NN CA H TRUYN NG MY DP TNG HP H TRUYN NG KH NN THEO CC IU KIN LM VIC CHO

Chn cc phn t kh nn thch hp v xy dng s nguyn l kh nn ca h truyn ng da trn biu trng thi rt gn sau:S 1

S 2

S 3

S 4