Bosch ME7.1 - Revision history

Mike Jones: /* 7.1.1 */

2022-12-07T05:04:29Z

7.1.1

← Older revision		Revision as of 05:04, 7 December 2022
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	==7.1.1==		==7.1.1==
	Updated 7.1 for NA vehicles and TT V6-8 ~~(both~~ NB O2)		Updated 7.1 for NA vehicles and TT V6-8 (NB O2)
	:ST10 versions differ*		:ST10 versions differ*

Mike Jones: /* 7.1.1 */

2022-12-07T02:48:37Z

7.1.1

← Older revision		Revision as of 02:48, 7 December 2022
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	==7.1.1==		==7.1.1==
	Updated 7.1 for NA vehicles and TT V6-8		Updated 7.1 for NA vehicles and TT V6-8 (both NB O2)
	:ST10 versions differ*		:ST10 versions differ*

Mike Jones: /* 7.1.1 */

2022-12-07T02:33:18Z

7.1.1

← Older revision		Revision as of 02:33, 7 December 2022
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	==7.1.1==		==7.1.1==
	Updated 7.1 for NA vehicles and TT V6-8		Updated 7.1 for NA vehicles and TT V6-8
			:ST10 versions differ*

	==7.5==		==7.5==

Mike Jones at 01:40, 7 December 2022

2022-12-07T01:40:20Z

← Older revision		Revision as of 01:40, 7 December 2022
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	In the ME7.1 [[synchronous path]], the timing maps determine the timing at every cycle of every cylinder, and should the knock sensor for a given cylinder reach a certain threshold, the timing will be cut down for the next cycle for that cylinder. If the knock sensor activity subsides, the timing will be restored, one step at a time, until another knock event occurs on that cylinder.		In the ME7.1 [[synchronous path]], the timing maps determine the timing at every cycle of every cylinder, and should the knock sensor for a given cylinder reach a certain threshold, the timing will be cut down for the next cycle for that cylinder. If the knock sensor activity subsides, the timing will be restored, one step at a time, until another knock event occurs on that cylinder.

⚫	Block diagram of the torque ([[load]]) based system's control flow:

	[[Image:ME7.1_torque_oriented.png]]		[[Image:ME7.1_torque_oriented.png\|frame\|
		⚫	Block diagram of the torque ([[load]]) based system's control flow:]]


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	=ME7 Revisions:=		=ME7 Revisions:=
	Different hardware revisions function with the same general logic flow.		Different hardware revisions function with the same general logic flow.
			512kB and 1mB variations exist.
	:-Consult relevant (available) FR.		:-Consult most relevant (available) FR.

	==7.1.1==		==7.1.1==
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	==7.5==		==7.5==
	~~Wideband~~ - Usually turbo 4-cyl		Wide-band - Usually turbo 4-cyl


	=Cross-flash Checklist=		=Cross-flash Checklist=

Mike Jones: /* Cross-flash Checklist */

2022-12-07T01:36:11Z

Cross-flash Checklist

← Older revision		Revision as of 01:36, 7 December 2022
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	==References==		=References=
	* [http://nefariousmotorsports.com NefMoto]		* [http://nefariousmotorsports.com NefMoto]
	* [http://www.amazon.co.uk/gp/product/3934584349/ Me-motronic Engine Management] from Amazon.com.uk (ISBN 3-934584-34-9)		* [http://www.amazon.co.uk/gp/product/3934584349/ Me-motronic Engine Management] from Amazon.com.uk (ISBN 3-934584-34-9)

Mike Jones: /* ME7 Revisions: */

2022-12-07T01:35:24Z

ME7 Revisions:

← Older revision		Revision as of 01:35, 7 December 2022
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	=ME7 Revisions:=		=ME7 Revisions:=
	~~These are different~~ hardware revisions ~~that~~ function with the same general logic flow.		Different hardware revisions function with the same general logic flow.
	There is also 512kb and 1mb versions.
	:-Consult relevant (available) FR.		:-Consult relevant (available) FR.

	==7.1.1==		==7.1.1==
	Updated 7.1 for NA vehicles and TT V6-8		Updated 7.1 for NA vehicles and TT V6-8

Mike Jones: /* ME7 Revisions: */

2022-12-07T01:33:57Z

ME7 Revisions:

← Older revision		Revision as of 01:33, 7 December 2022
Line 17:		Line 17:
	=ME7 Revisions:=		=ME7 Revisions:=
	These are different hardware revisions that function with the same general logic flow.		These are different hardware revisions that function with the same general logic flow.
			There is also 512kb and 1mb versions.
	:-Consult relevant (available) FR.		:-Consult relevant (available) FR.
	==7.1.1==		==7.1.1==
Line 24:		Line 25:
	Wideband - Usually turbo 4-cyl		Wideband - Usually turbo 4-cyl

			=Cross-flash Checklist=
			:1. Compare with a hex editor. The beginning of the files should be the same.
			:2. Compare with me7check. They MUST be the same versions.


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	* [http://nyet.org/cars/files/c167cr_ds_v3.3_2005_02.pdf B59233-FA (aka SAK-C167CR-4RM) Datasheet]		* [http://nyet.org/cars/files/c167cr_ds_v3.3_2005_02.pdf B59233-FA (aka SAK-C167CR-4RM) Datasheet]
	* [http://andywhittaker.com/ECU/BoschMotronicME71/tabid/68/Default.aspx Andy Whittaker's site]		* [http://andywhittaker.com/ECU/BoschMotronicME71/tabid/68/Default.aspx Andy Whittaker's site]
			* [http://nefariousmotorsports.com/forum/index.php?topic=6805.msg63084#msg63084 ddillenger]

	[[Category:Tuning]]		[[Category:Tuning]]

Mike Jones at 01:30, 7 December 2022

2022-12-07T01:30:20Z

← Older revision		Revision as of 01:30, 7 December 2022
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	[[Image:ME7.1_torque_oriented.png]]		[[Image:ME7.1_torque_oriented.png]]



			=ME7 Revisions:=
			These are different hardware revisions that function with the same general logic flow.
			:-Consult relevant (available) FR.
			==7.1.1==
			Updated 7.1 for NA vehicles and TT V6-8

			==7.5==
			Wideband - Usually turbo 4-cyl



	==References==		==References==

Nyet: /* References */

2014-06-11T17:01:48Z

References

← Older revision		Revision as of 17:01, 11 June 2014
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	==References==		==References==
			* [http://nefariousmotorsports.com NefMoto]
⚫	* [http://andywhittaker.com/ECU/BoschMotronicME71/tabid/68/Default.aspx Andy Whittaker's ~~excellent~~ site]
	* [http://www.amazon.co.uk/gp/product/3934584349/ Me-motronic Engine Management] from Amazon.com.uk (ISBN 3-934584-34-9)		* [http://www.amazon.co.uk/gp/product/3934584349/ Me-motronic Engine Management] from Amazon.com.uk (ISBN 3-934584-34-9)
	* [http://nyet.org/cars/info/Audi_S4_engine_english.pdf The 2.7-litre V6 Biturbo Design and Function Self-study Programme 198]		* [http://nyet.org/cars/info/Audi_S4_engine_english.pdf The 2.7-litre V6 Biturbo Design and Function Self-study Programme 198]
	* [http://nyet.org/cars/info/ME7sw.pdf A New Approach to Functional and Software Structure for Engine Management Systems - BOSCH ME7]		* [http://nyet.org/cars/info/ME7sw.pdf A New Approach to Functional and Software Structure for Engine Management Systems - BOSCH ME7]
	* [http://nyet.org/cars/files/c167cr_ds_v3.3_2005_02.pdf B59233-FA (aka SAK-C167CR-4RM) Datasheet]		* [http://nyet.org/cars/files/c167cr_ds_v3.3_2005_02.pdf B59233-FA (aka SAK-C167CR-4RM) Datasheet]
		⚫	* [http://andywhittaker.com/ECU/BoschMotronicME71/tabid/68/Default.aspx Andy Whittaker's site]

	[[Category:Tuning]]		[[Category:Tuning]]

Nyet at 07:40, 23 January 2011

2011-01-23T07:40:44Z

← Older revision		Revision as of 07:40, 23 January 2011
Line 3:		Line 3:
	ME7 is a [[load]] based engine management system.		ME7 is a [[load]] based engine management system.

	ME7 continuously calculates the "nominal charging moment" (requested torque) that the user seems to be requesting. This, in turn generates a "requested [[load]]" (nominal charge), which is capped by "specified corrected [[load]]" (a function of RPM, IAT and other limiting parameters, such as knock control, etc.). This requested [[load]] determines the throttle plate angle and requested pressure.		ME7 continuously calculates the "nominal charging moment" (requested torque) that the user seems to be requesting. This, in turn generates a "requested [[load]]" (nominal charge), which is capped by "specified corrected [[load]]" (a function of RPM, IAT and other limiting parameters, such as knock control, etc.). This requested [[load]] determines the throttle plate angle and requested pressure. As long as lambda control stays closed loop, the ECU will adjust the fuel mixture via feedback loop using the narrow-band O2 sensors.

	Once the ECU decides the ~~requested (or actual?)~~ [[load]] is large enough~~(?)~~, ~~and/~~or the requested AFR ~~deviates~~ ~~far~~ ~~enough from~~ lambda 1~~(?)~~, its fueling control system goes [[open loop]]. In the [[ME7.1]] [[asynchronous path]], this means that injector on-time calculations are going to be dependent on [[Mass air flow\|mass air flow sensor]] readings. Those [[mass air flow\|MAF]] readings also go into the fueling maps as a "engine [[load]]" and are used to generate injector on times independent of O2 sensor readings.		Once the ECU decides the [[load]] is large enough for enough time, or the requested AFR is no longer lambda=1, its fueling control system goes [[open loop]]. In the [[ME7.1]] [[asynchronous path]], this means that injector on-time calculations are going to be dependent on [[Mass air flow\|mass air flow sensor]] readings. Those [[mass air flow\|MAF]] readings also go into the fueling maps as a "engine [[load]]" and are used to generate injector on times independent of O2 sensor readings.

	In the ME7.1 [[synchronous path]], the timing maps determine the timing at every cycle of every cylinder, and should the knock sensor for a given cylinder reach a certain threshold, the timing will be cut down for the next cycle for that cylinder. If the knock sensor activity subsides, the timing will be restored, one step at a time, until another knock event occurs on that cylinder.		In the ME7.1 [[synchronous path]], the timing maps determine the timing at every cycle of every cylinder, and should the knock sensor for a given cylinder reach a certain threshold, the timing will be cut down for the next cycle for that cylinder. If the knock sensor activity subsides, the timing will be restored, one step at a time, until another knock event occurs on that cylinder.