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1 | /* | |||
2 | * @file test_fuel_wall_wetting.cpp | |||
3 | * | |||
4 | * See also test_accel_enrichment.cpp | |||
5 | * | |||
6 | * @date Oct 16, 2019 | |||
7 | * @author Andrey Belomutskiy, (c) 2012-2020 | |||
8 | */ | |||
9 | ||||
10 | #include "pch.h" | |||
11 | ||||
12 | struct MockWallController : public IWallFuelController { | |||
13 | 111 | MOCK_METHOD(bool, getEnable, (), (const, override)); | ||
14 | 111 | MOCK_METHOD(float, getAlpha, (), (const, override)); | ||
15 | 111 | MOCK_METHOD(float, getBeta, (), (const, override)); | ||
16 | }; | |||
17 | ||||
18 | 4 | TEST(fuel, testWallWettingEnrichmentMath) { | ||
19 |
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1 | EngineTestHelper eth(engine_type_e::TEST_ENGINE); | |
20 | ||||
21 |
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1 | MockWallController wallController; | |
22 | ||||
23 | // WW is enabled! | |||
24 |
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1 | EXPECT_CALL(wallController, getEnable()).WillRepeatedly(Return(true)); | |
25 | ||||
26 | // 1/2 of fuel remains on walls | |||
27 |
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1 | EXPECT_CALL(wallController, getAlpha()).WillRepeatedly(Return(0.5f)); | |
28 | ||||
29 | // 1/4 of fuel is lands on walls | |||
30 |
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1 | EXPECT_CALL(wallController, getBeta()).WillRepeatedly(Return(0.25f)); | |
31 | ||||
32 | // install our mock in to the engine | |||
33 |
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1 | engine->engineModules.get<WallFuelController>().set(&wallController); | |
34 | ||||
35 | 1 | WallFuel wallFuel; | ||
36 | ||||
37 | // each invocation of 'adjust' changes WallWetting internal state | |||
38 |
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1 | EXPECT_NEAR(1.3333, wallFuel.adjust(1), EPS4D); | |
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1 | EXPECT_NEAR(1.1111, wallFuel.adjust(1), EPS4D); | |
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1 | EXPECT_NEAR(1.0370, wallFuel.adjust(1), EPS4D); | |
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1 | EXPECT_NEAR(1.0123, wallFuel.adjust(1), EPS4D); | |
42 | ||||
43 | // get to steady state | |||
44 |
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51 | for (size_t i = 0; i < 50; i++) { |
45 |
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50 | wallFuel.adjust(1); | |
46 | } | |||
47 | ||||
48 |
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1 | EXPECT_NEAR(1, wallFuel.adjust(1), EPS4D); | |
49 | ||||
50 | // now run half the fuel | |||
51 |
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1 | EXPECT_NEAR(0.3333, wallFuel.adjust(0.5), EPS4D); | |
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1 | EXPECT_NEAR(0.4444, wallFuel.adjust(0.5), EPS4D); | |
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1 | EXPECT_NEAR(0.4815, wallFuel.adjust(0.5), EPS4D); | |
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1 | EXPECT_NEAR(0.4938, wallFuel.adjust(0.5), EPS4D); | |
55 | ||||
56 |
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51 | for (size_t i = 0; i < 50; i++) { |
57 |
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50 | wallFuel.adjust(0.5); | |
58 | } | |||
59 | ||||
60 |
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1 | EXPECT_NEAR(0.5, wallFuel.adjust(0.5), EPS4D); | |
61 | 2 | } | ||
62 | ||||
63 | 4 | TEST(fuel, testWallWettingEnrichmentScheduling) { | ||
64 | ||||
65 |
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1 | EngineTestHelper eth(engine_type_e::TEST_ENGINE); | |
66 | 1 | engineConfiguration->isFasterEngineSpinUpEnabled = false; | ||
67 | ||||
68 |
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1 | setCrankOperationMode(); | |
69 | ||||
70 |
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1 | eth.setTriggerType(trigger_type_e::TT_HALF_MOON); | |
71 | ||||
72 | ||||
73 |
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1 | eth.fireTriggerEvents2(/* count */ 4, 25 /* ms */); | |
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1 | ASSERT_EQ( 1200, Sensor::getOrZero(SensorType::Rpm)) << "RPM"; | |
75 | ||||
76 | 1 | int expectedInvocationCounter = 1; | ||
77 | ||||
78 |
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5 | for (int i = 0; i < 4; i++) { |
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4 | ASSERT_EQ(expectedInvocationCounter, engine->injectionEvents.elements[i].getWallFuel().invocationCounter); | |
80 | } | |||
81 | ||||
82 | // Cylinder 5 doesn't exist - shouldn't have been called! | |||
83 |
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1 | ASSERT_EQ(0, engine->injectionEvents.elements[5].getWallFuel().invocationCounter); | |
84 | ||||
85 |
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1 | eth.engine.periodicFastCallback(); | |
86 |
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1 | eth.engine.periodicFastCallback(); | |
87 |
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1 | eth.engine.periodicFastCallback(); | |
88 | ||||
89 | // still same 1 per cylinder - wall wetting is NOT invoked from 'periodicFastCallback' | |||
90 |
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5 | for (int i = 0; i < 4; i++) { |
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4 | ASSERT_EQ(expectedInvocationCounter, engine->injectionEvents.elements[i].getWallFuel().invocationCounter); | |
92 | } | |||
93 | ||||
94 | // Cylinder 5 doesn't exist - shouldn't have been called! | |||
95 |
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1 | ASSERT_EQ(0, engine->injectionEvents.elements[5].getWallFuel().invocationCounter); | |
96 | 1 | } | ||
97 |