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Electronic Code of Federal Regulations

e-CFR data is current as of December 4, 2019

Title 40Chapter ISubchapter CPart 51Subpart S → Appendix


Title 40: Protection of Environment
PART 51—REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF IMPLEMENTATION PLANS
Subpart S—Inspection/Maintenance Program Requirements


Appendix E to Subpart S of Part 51—Transient Test Driving Cycle

(I) Driver's trace. All excursions in the transient driving cycle shall be evaluated by the procedures defined in §86.115-78(b)(1) and §86.115(c) of this chapter. Excursions exceeding these limits shall cause a test to be void. In addition, provisions shall be available to utilize cycle validation criteria, as described in §86.1341-90 of this chapter, for trace speed versus actual speed as a means to determine a valid test.

(II) Driving cycle. The following table shows the time speed relationship for the transient IM240 test procedure.

SecondMPH
00
10
20
30
40
53
65.9
78.6
811.5
914.3
1016.9
1117.3
1218.1
1320.7
1421.7
1522.4
1622.5
1722.1
1821.5
1920.9
2020.4
2119.8
2217
2314.9
2414.9
2515.2
2615.5
2716
2817.1
2919.1
3021.1
3122.7
3222.9
3322.7
3422.6
3521.3
3619
3717.1
3815.8
3915.8
4017.7
4119.8
4221.6
4323.2
4424.2
4524.6
4624.9
4725
4825.7
4926.1
5026.7
5127.5
5228.6
5329.3
5429.8
5530.1
5630.4
5730.7
5830.7
5930.5
6030.4
6130.3
6230.4
6330.8
6430.4
6529.9
6629.5
6729.8
6830.3
6930.7
7030.9
7131
7230.9
7330.4
7429.8
7529.9
7630.2
7730.7
7831.2
7931.8
8032.2
8132.4
8232.2
8331.7
8428.6
8525.1
8621.6
8718.1
8814.6
8911.1
907.6
914.1
920.6
930
940
950
960
970
983.3
996.6
1009.9
10113.2
10216.5
10319.8
10422.2
10524.3
10625.8
10726.4
10825.7
10925.1
11024.7
11125.2
11225.4
11327.2
11426.5
11524
11622.7
11719.4
11817.7
11917.2
12018.1
12118.6
12220
12320.7
12421.7
12522.4
12622.5
12722.1
12821.5
12920.9
13020.4
13119.8
13217
13317.1
13415.8
13515.8
13617.7
13719.8
13821.6
13922.2
14024.5
14124.7
14224.8
14324.7
14424.6
14524.6
14625.1
14725.6
14825.7
14925.4
15024.9
15125
15225.4
15326
15426
15525.7
15626.1
15726.7
15827.3
15930.5
16033.5
16136.2
16237.3
16339.3
16440.5
16542.1
16643.5
16745.1
16846
16946.8
17047.5
17147.5
17247.3
17347.2
17447.2
17547.4
17647.9
17748.5
17849.1
17949.5
18050
18150.6
18251
18351.5
18452.2
18553.2
18654.1
18754.6
18854.9
18955
19054.9
19154.6
19254.6
19354.8
19455.1
19555.5
19655.7
19756.1
19856.3
19956.6
20056.7
20156.7
20256.3
20356
20455
20553.4
20651.6
20751.8
20852.1
20952.5
21053
21153.5
21254
21354.9
21455.4
21555.6
21656
21756
21855.8
21955.2
22054.5
22153.6
22252.5
22351.5
22450.5
22548
22644.5
22741
22837.5
22934
23030.5
23127
23223.5
23320
23416.5
23513
2369.5
2376
2382.5
2390

[57 FR 52987, Nov. 5, 1992, as amended at 58 FR 59367, Nov. 9, 1993]

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