Patent SG-11201903467T-A (SG)
Title: Engine health diagnostic apparatus and method
Inventor: SMART EDWARD
IPC: G01H1/00
Filed: 2017-11-20
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property C.--.` MD HIM 0 11101 010 11111 01 II 0 I HO 1110 HI 1011 001111111110 HOED Organization International Bureau (10) International Publication Number 03 (43) International Publication Date ......P' WO 2018/100334 Al 07 June 2018 (07.06.2018) W I PO I PCT (51) International Patent Classification: Portsmouth P01 2UP (GB). GRICE, Neil; c/o NGnuity GO1M 15/12 (2006.01) G01H 1/00 (2006.01) Limited, Wren Cottage, East Creech, Creech, Wareham (21) International Application Number: Dorset BH2O 5AP (GB). BROWN, David; c/o University PCT/GB2017/053477 of Portsmouth, University House, Winston Churchill Ave, Portsmouth P01 2UP (GB). GREGORY, Martin; c/o NG- (22) International Filing Date: nuity Limited, Wren Cottage, East Creech, Creech, Ware- 20 November 2017 (20.11.2017) ham BH2O 5AP (GB). GARRITY, David; c/o STS De- fence Limited, Mumby Road, Gosport Hampshire P012 (25) Filing Language: English 1AF (GB). (26) Publication Language: English (74) Agent: D YOUNG & CO LLP; 120 Holborn, London (30) Priority Data: EC1N 2DY (GB). 16201222.3 29 November 2016 (29.11.2016) EP (81) Designated States (unless otherwise indicated, for every (71) Applicant: STS DEFENCE LIMITED [GB/GB]; Mumby kind of national protection available): AE, AG, AL, AM, Road, Gosport Hampshire P012 1AF (GB). AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, (72) Inventors: SMART, Edward; c/o University of DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, Portsmouth, University House, Winston Churchill Ave, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (54) Title: ENGINE HEALTH DIAGNOSTIC APPARATUS AND METHOD 90 .),._ -,, scaling parameters 10,1 2 100 112 80 92 ` '1 s-, i H ,...., t frequency domain processing i 98 -------.. freq band NFL. enertat gy cornpuiol : Training 110 time domain processing 1 --d mean 9 6 H 91 116 - variance Model vibration buffer 118 — kurtosid Feature caling sensor data 120 ---- - '` Vector ----4' 1 -- .. L ., _ i s ewness . 122 ------ RMS SVM 1 model 124 --- factor parameters crest I 94 126 -102 .-..,_ TDC peak vibration processing j-- 104 --.- Health Score -0-H timing peak calculation 130 J peak amplitude 94 132-- FIG. 1-1 (57) : An engine health diagnostic apparatus (8) is provided for analysing health of M (4). The apparatus (8) comprises feature generation circuitry (90) for en sensor (60) detecting vibration at a component of the reciprocating internal 0 indicating multiple features of the sensor data. Processing circuitry (94) 1-1 © which is defined by model parameters characterising a decision boundary (150) ---- vectors captured during healthy operation of the engine (4). The model 0 1-1 0 indication of deviation of the feature vector from the decision boundary (150) 0 N 4 processing processes generates combustion engine (4) and generating a feature vector (80) the vibration sensor data (91) received from a vibration of healthy operation an of healthy feature engine health indication providing a quantitative operation. a reciprocating internal combustion engine vector using a trained classification model learnt from a training set of feature O [Continued on next page] WO 2018/100334 Al MIDEDIMOMOIDEIREEMOMMINIMIOMMERMEN KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))