1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS R ISO 14512 KS R ISO 14512:2008(2013 ) 2008 12 26 http:/www.kats.go.krKS R ISO 14512:2008 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :2003 12 26 :2008 12 26 :2013 2 26 : 2013-0081 : ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS R ISO 14512:2008 (20
2、13 ) Passenger cars Straight-ahead braking on surfaces with split coefficient of friction Open-loop test method 1999 1 ISO 14512, Passenger cars Straight-ahead braking on surfaces with split coefficient of friction Open-loop test method , . 1 . KS R ISO 3833 . ABS ABS , ABS . 2 . . ( ) . KS R ISO 61
3、1, KS R ISO 1176, KS R ISO 3833, KS R ISO 8855, KS R ISO 15037 1, 1: 3 , 3.1 KS R ISO 611 KS R ISO 8855 . KS R ISO 14512:2008 2 3.2 1 . 1 aX aY FP aMH pB bsB vX vY H a & tdd & 22ddt w1, w2, w3, w4 a b (9.2.1 ) 4 (directional behaviour) . . ( , ) . A . . “ ” . . . . . (characteristic value) . (interm
4、ediate axis system) (X, Y, Z) (KS R ISO 8855 ). (XV, YV, ZV) . , (KS R ISO 1176 ). KS R ISO 14512:2008 3 5 , KS R ISO 15037 1 . 6 2 . 3 . 3 KS R ISO 15037 1 . 2 a a a . 3 180 180 1 10 10 m/s20.1 m/s2 10 10 m/s20.1 m/s2 025 000 kPa (0250 bar) 200 kPa(2 bar) 02 000 N 20 N 200 m 1 m 20 s 10.2 s 1 20 20
5、 N m 0.1 N m . ( A ). KS R ISO 14512:2008 4 7 7.1 7.27.4 . ( B ) ( A ) . . . . . . , , , . ABS . 50 km/h . 7.2 . 2.5 %, 1 % . ( ) ( ) 0.5 . (sheeting), , , . . . 50 m , ABS 4 . ABS . , . , . 7.3 5 m/s . ( A) . 7.4 KS R ISO 14512:2008 5 7.4.1 KS R ISO 15037 1 5.4.2 . 7.4.2 KS R ISO 15037 1 5.4.3 . 7.
6、4.3 ( , , ) . 7.4.4 KS R ISO 15037 1 5.4.4 . 8 8.1 ( , , ) . . 100 20 . 8.2 80 km/h . 10 km/h 20 km/h ( A) ( B) . . ( t0) , (t0 0.8 ) t0 . a) 3 . b) 0Xv (9.3 ) 2 km/h . c) 1 km/h . d) 1/s . 8.3 . KS R ISO 14512:2008 6 . (8.4 ) (8.2 ) 3 . . ( ) B . . ( 40 km/h) . (ABS ). . . . A “ ” . . 8.4 . (t0) 2
7、tn 1 . 8.4.1 t0 t0 . 8.4.2 tntn . t0 tn . tn t0 1 . tn 0.5 . tn B . 8.4.3 tmtm FP FP . 9 9.1 . , . . KS R ISO 14512:2008 7 9.2 , . 9.2.1 8.4.1 t0 t0 tm 0.3 . 1 . . . ttFtFtttd)( 1PP00+= t: 1 . . , ( ) . 1 tm 9.2.2 tn . , . , . () KS R ISO 14512:2008 8 9.3 Xa (8.2 ) tn 0.1 s t tn 0.1 s . =nn0tvvatXX
8、ttvtvttX d)( 1000s 8.01C= tC1: 0.8 . ttvtvtttd)( 1s 1.0 s 1.02Cnnn+= tC2: 0.2 . (s) . 9.4 9.4.1 tn . tn tn 0.1 s t tn 0.1 s . ttttttd)( 1s 1.0 s 1.02Cnnn &+= tC2: 0.2 . 9.4.2 max( ) . t0 . 10 A . ( ) . tn (9.4 ). tn B . tn . KS R ISO 14512:2008 9 A ( ) : : : : / : : : : : 4 : : : : : : ABS: : / : /
9、: : : : : : : : 1): 1: . : 12: . : 13: . : 14: . : 15: . : 16: . : 11). 1 : 2 : 4 : . . : : 1 mmKS R ISO 14512:2008 10 : : : : : l: . mm r: mm1) l: . mm r: mm 2): kPa(bar) / kPa(bar) kPa(bar) / kPa(bar) : kPa(bar) / kPa(bar) : mm / mm : mm / mm: 1): . kg 1): . kg / 1): .kg / .kg 1: .kg / r kg 1: .kg
10、 / r kg: : .mm: .mm / mm1): .mm1): .mm1): .mm : .mm : : : . . : . . : : . . : . . / : : : : : : : : . : m/s : : : : : : 1) . 2) 100 kPa = 1 bar KS R ISO 14512:2008 11 B ( ) (KS R ISO 14512) B.1 aX tn : : : tn(/s) ax(m/s2) 1 2 3 5 4 0 0 5 10 15 20025 KS R ISO 14512:2008 12 KS R ISO 14512:2008 , . 1 1
11、.1 . ISO 14512: 1999(E), Passenger cars Straight-ahead braking on surfaces with split coefficient of friction Open-loop test method . 1.2 1999 12 ISO 14512 , . . 1.3 null . KS R ISO 3833 . ABS , ABS . null . a) b) c) d) 1.4 , . KS R ISO 14512:2008 13 . 3 ( ) 2 (2008 ) , , . “ISO 3833” KS “KS R ISO 3
12、833” . , 8.4 “ ” “ ” , 9.4 “ ” “ ” . 2008 KS A 0001 . 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS R ISO 14512:2008 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Passenger carsStraight-ahead braking on surfaces with split coefficient of friction Open-loop test method ICS 43.020