(19)

(11)

EP 1 269 176 A2

(12)

(88) Date of publication A3: 31.01.2002 (43) Date of publication: 02.01.2003 Bulletin 2003/01 (21) Application number: 01922795.8 (22) Date of filing: 28.03.2001

(51) International Patent Classification (IPC)7: G01N 27/407 (86) International application number: PCT/US0109/961 (87) International publication number: WO 0107/3418 (04.10.2001 Gazette 2001/40)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 28.03.2000 US 192769 P (71) Applicant: Delphi Technologies, Inc. Troy, MI 48007-5052 (US)	(72) Inventors: WU, Ming-Cheng Troy, MI 48098 (US) CLYDE, Eric, P. Bay City, MI 48708 (US) (74) Representative: Denton, Michael John  Delphi Automotive Systems,Centre Technique Paris,117, avenue des Nations,B.P. 60059 95972 Roissy Charles de Gaulle Cédex 95972 Roissy Charles de Gaulle Cédex (FR)