Custom Features - Revision history

Joedubs: /* Performance flex fuel */

2020-12-15T21:45:03Z

Performance flex fuel

2020-12-15T21:44:42Z

Performance flex fuel

2020-12-15T21:43:04Z

Performance flex fuel

2020-12-15T21:35:37Z

Performance flex fuel

2020-12-06T04:10:48Z

Performance flex fuel

2020-12-06T04:08:53Z

Proposed custom features

2020-12-06T04:08:08Z

Performance flex fuel

2020-12-06T04:07:15Z

Proposed custom features

2020-12-06T04:07:02Z

Performance flex fuel

2020-12-06T04:06:33Z

Octane Slider

@@ Line 48: / Line 48: @@
 Which in ASM is:
 <pre>
-20 00 fd  -> 91 10 00 fd
+20 00 fd  => 91 10 00 fd
 and
-d9 ff ce ad -> d9 ff 12 7c
+d9 ff ce ad => d9 ff 12 7c
 </pre>
 To make the search/replace more specific:
 <pre>
-f6 91 20 00 fd 40 c5 d9 dd> 40 f6 91 10 00 fd 40 c5 d9 dd
+f6 91 20 00 fd 40 c5 d9 dd => 40 f6 91 10 00 fd 40 c5 d9 dd
 and
-e4 d9 ff ce ad d9 cc ca ad> 40 e4 d9 ff 12 7c d9 cc ca ad
+e4 d9 ff ce ad d9 cc ca ad => 40 e4 d9 ff 12 7c d9 cc ca ad
 </pre>

@@ Line 55: / Line 55: @@
 To make the search/replace more specific:
 <pre>
-f6 91 20 00 fd 40 c5 > 40 f6 91 10 00 fd 40 c5
+f6 91 20 00 fd 40 c5 d9 dd> 40 f6 91 10 00 fd 40 c5 d9 dd
 and
-e4 d9 ff ce ad d9 cc > 40 e4 d9 ff 12 7c d9 cc
+e4 d9 ff ce ad d9 cc ca ad> 40 e4 d9 ff 12 7c d9 cc ca ad
 </pre>

@@ Line 51: / Line 51: @@
 and
 d9 ff ce ad -> d9 ff 12 7c
 </pre>

← Older revision		Revision as of 21:35, 15 December 2020
Line 31:		Line 31:

	Existing octane slider functionality would be overridden/removed. The implications of the slider 'write dynamic identifier' would need to be assessed		Existing octane slider functionality would be overridden/removed. The implications of the slider 'write dynamic identifier' would need to be assessed
		+
		+	The following code in the octane lookup:
		+	<pre>
		+	movh.a a15,#0xd002
		+	and
		+	lea a15,[a15]-0x2172 //a15 = d001de8e
		+	</pre>
		+
		+	Should change to:
		+	<pre>
		+	movh.a a15,0xd001
		+	and
		+	lea a15,[a15]-0x3e2e //a15 = 0xd000c1d2, fac_afu_ratio_sens_mmv
		+	</pre>
		+
		+	Which in ASM is:
		+	<pre>
		+	91 20 00 fd -> 91 10 00 fd
		+	and
		+	d9 ff ce ad -> d9 ff 12 7c
		+	</pre>

@@ Line 26: / Line 26: @@
 A proposal:
-Repurpose the Eurodyne [[#Octane_Slider]] so that instead of looking up the adjustable slider value and the min and max octane values - it looks up the %alternative fuel value (measured), and calculates an interpolation value against that.
+Repurpose the Eurodyne [[#Octane_Slider]] so that instead of looking up the adjustable slider value and the min and max octane values - it looks up the %alternative fuel value (fac_afu_ratio_det/fac_afu_ratio), and calculates an interpolation value against that.
-Existing settings for min and max octane for adjustable features can stay the same. The calibration can be adjusted for 0 - 50, for example.
+Existing settings for "min and max octane for adjustable features" can stay the same. The calibration can be adjusted for 0 - 50, for example.
-Existing octane slider functionality would be overridden/removed.
+Existing octane slider functionality would be overridden/removed.  The implications of the slider 'write dynamic identifier' would need to be assessed

@@ Line 22: / Line 22: @@
 The factory FlexFuel in the Simos18 has the capability of adjusting mass fuel flow (mff) for varying levels of alternative fuel both via a sensor and sensorless (using trims, etc).  However, it doesn't have the ability to adjust timing.
-Performance FlexFuel (@ZuMble) is the idea that in addition to handling the additional fuel required to reach stoich, the ECU can adjust timing to a point, as well.  Ethanol increases knock resistance.
+Performance FlexFuel (@ZuMble) is the idea that in addition to handling the additional fuel required to reach stoich, the ECU can adjust timing to a point, as well.
 A proposal:

@@ Line 8: / Line 8: @@
 #There's a function call within the existing ignition angle calculation.
 #There's custom code that checks to see if the slider is enabled
-##If no, use the "low octane" timing map (which has been repurposed from one of the existing timing maps)
+#No:
-##If yes, get the value from the slider, and the minimum and maximum adjustable octane settings from the cal
+##use the "low octane" timing map (which has been repurposed from one of the existing timing maps)
 ##calculate an interpolation factor
 ##perform a map lookup against the low timing map
@@ Line 15: / Line 17: @@
 ##apply the interpolation factor to the basic timing outputs from the two timing maps
 ##Store the output as the basic ignition angle setting
 == Proposed custom features ==