Audi A2 Conversion - Revision history

Johu: Added links

2024-05-24T08:08:54Z

Added links

← Older revision		Revision as of 08:08, 24 May 2024
Line 2:		Line 2:

	* Nissan Leaf 24 kWh battery pack with original BMS		* Nissan Leaf 24 kWh battery pack with original BMS
	* Toyota Prius Gen 2 (2004-2009) transaxle with matching inverter		* Toyota Prius Gen 2 (2004-2009) transaxle with matching [[Toyota Prius Gen2 Inverter\|inverter]]
	* openinverter Prius Gen2 motor controller		* openinverter [[Toyota Prius Gen2 Inverter Controller\|Prius Gen2 motor controller]]
	* openinverter main board running stm32-car (VCU in ECU enclosure)		* openinverter main board running [https://github.com/jsphuebner/stm32-car/tree/audi-a2 stm32-car] (VCU in ECU enclosure)

	== Pin mapping ==		== Pin mapping ==

Johu: /* ECU */

2023-03-16T14:56:51Z

ECU

← Older revision		Revision as of 14:56, 16 March 2023
Line 218:		Line 218:

	Throttle body motor		Throttle body motor
	\|~~LIN for A/C (83)~~		\|
	~~charge(91)~~
	\|ro/gn gn/bl		\|ro/gn gn/bl
	ro/bl li/ro		ro/bl li/ro
Line 258:		Line 257:
	\|102/103		\|102/103
	\|Ignition coil bank 1/2		\|Ignition coil bank 1/2
	\|		\|gn/ro - LIN
	\|gn/ws gn/ro		\|gn/ws gn/ro
	\|		\|1J0973724
	\|-		\|-
	\|106		\|106

Crasbe: Added categories to the page to allow for better navigation

2022-06-28T22:35:54Z

Added categories to the page to allow for better navigation

← Older revision		Revision as of 22:35, 28 June 2022
Line 578:		Line 578:

	I simulate the signal with a simple IO pin that is toggled "manually" as the time constants are rather long.		I simulate the signal with a simple IO pin that is toggled "manually" as the time constants are rather long.

			[[Category:VAG]] [[Category:Conversions]]

Johu: Throttle GND/5V were swapped

2022-03-14T19:00:35Z

Throttle GND/5V were swapped

← Older revision		Revision as of 19:00, 14 March 2022
Line 59:		Line 59:
	\|-		\|-
	\|33		\|33
	\|Throttle second pot ~~+5V~~		\|Throttle second pot GND
	\|as is		\|as is
	\|gr/ge		\|gr/ge
Line 77:		Line 77:
	\|-		\|-
	\|36		\|36
	\|Throttle first pot ~~+5V~~		\|Throttle first pot GND
	\|as is		\|as is
	\|br/ro		\|br/ro
Line 161:		Line 161:
	\|-		\|-
	\|72		\|72
	\|Throttle second pot ~~GND~~		\|Throttle second pot 5V
	\|as is		\|as is
	\|gr		\|gr
Line 167:		Line 167:
	\|-		\|-
	\|73		\|73
	\|Throttle first pot ~~GND~~		\|Throttle first pot 5V
	\|		\|as is
	\|ge/li		\|ge/li
	\|		\|

Johu: /* ECU */

2022-03-13T19:08:24Z

ECU

← Older revision		Revision as of 19:08, 13 March 2022
Line 280:		Line 280:
	\|		\|
	\|}		\|}
	Many positions in the connector are vacant and we populate them with signals that we need to direct to the BMS in the back of the car ~~and also~~ for ~~drive mode selection and display~~.		Many positions in the connector are vacant and we populate them with signals that we need to direct to the BMS in the back of the car. I'm using a CAT5 Ethernet cable for that. It is simply routed under the seat carpet.
	{\| class="wikitable"		{\| class="wikitable"
	\|+Additional pins on unused positions		\|+Additional pins on unused positions

Johu: /* ECU */

2022-03-13T19:07:19Z

ECU

← Older revision		Revision as of 19:07, 13 March 2022
Line 132:		Line 132:
	\|63		\|63
	\|Lambda (second) heater		\|Lambda (second) heater
	\|		\|Drive mode selection
	\|li/ro		\|li/ro
	\|		\|Cable from rear lambda
	\|-		\|-
	\|64		\|64
Line 150:		Line 150:
	\|68/69		\|68/69
	\|Lambda (second) signal		\|Lambda (second) signal
	\|		\|Drive mode LEDs
	\|bl/br ro/li		\|bl/br ro/li
	\|		\|Cable from rear lambda
	\|-		\|-
	\|70/71		\|70/71
Line 327:		Line 327:
	\|br/ws		\|br/ws
	\|Forwarded from inverter (71)		\|Forwarded from inverter (71)
	\|-
	~~\|24~~
	~~\|Drive mode reverse LED~~
	\|
	\|
	\|-
	~~\|23~~
	~~\|Drive mode forward LED~~
	\|
	\|
	\|-
	~~\|22~~
	~~\|Drive mode selection~~
	\|
	~~\|Resistor ladder~~
	\|}		\|}
	{\| class="wikitable"		{\| class="wikitable"

Johu: /* ECU */

2022-03-07T20:25:46Z

ECU

← Older revision		Revision as of 20:25, 7 March 2022
Line 286:		Line 286:
	!our function		!our function
	!wire color		!wire color
			!Comment
	\|-		\|-
	\|6		\|6
	\|CANH to BMS		\|CANH to BMS
	\|bl		\|bl
			\|
	\|-		\|-
	\|7		\|7
	\|CANL to BMS		\|CANL to BMS
	\|bl/ws		\|bl/ws
			\|
	\|-		\|-
	\|8		\|8
	\|Permanent 12V to BMS		\|Permanent 12V to BMS
	\|or		\|or
			\|
	\|-		\|-
	\|9		\|9
	\|Switched 12V to BMS		\|Switched 12V to BMS
	\|or/ws		\|or/ws
			\|
	\|-		\|-
	\|10		\|10
	\|Charging active to BMS		\|Charging active to BMS
	\|gn/ws		\|gn/ws
			\|
	\|-		\|-
	\|11		\|11
	\|Fuel tank simulation		\|Fuel tank simulation
	\|gn		\|gn
			\|PB7 via NPN
	\|-		\|-
	\|12		\|12
	\|DC switch HV+		\|DC switch HV+
	\|br		\|br
			\|Forwarded from inverter (70)
	\|-		\|-
	\|13		\|13
	\|Precharge relay		\|Precharge relay
	\|br/ws		\|br/ws
			\|Forwarded from inverter (71)
	\|-		\|-
	\|24		\|24
	\|Drive mode reverse		\|Drive mode reverse LED
			\|
	\|		\|
	\|-		\|-
	\|23		\|23
	\|Drive mode forward		\|Drive mode forward LED
			\|
	\|		\|
	\|-		\|-
Line 330:		Line 341:
	\|Drive mode selection		\|Drive mode selection
	\|		\|
			\|Resistor ladder
	\|}		\|}
	{\| class="wikitable"		{\| class="wikitable"

Johu: /* ECU */

2022-03-07T09:38:42Z

ECU

@@ Line 278: / Line 278: @@
+|
 |bl/gn
+|
 |}

Johu: /* Silence errors */

2022-03-06T22:21:34Z

Silence errors

← Older revision		Revision as of 22:21, 6 March 2022
Line 522:		Line 522:
	[[File:Tog2.png\|thumb\|Wave form to silence oil level warning]]		[[File:Tog2.png\|thumb\|Wave form to silence oil level warning]]
	After disconnecting the engine and removing the ECU we have 3 errors: Low coolant level, low oil, ABS/ESP. Coolant level can be silenced by simply shorting out the corresponding sense pins. We will use the coolant reservoir of the Prius inverter. We might insert a sensor for super neat integration, but not for now.		After disconnecting the engine and removing the ECU we have 3 errors: Low coolant level, low oil, ABS/ESP. Coolant level can be silenced by simply shorting out the corresponding sense pins. We will use the coolant reservoir of the Prius inverter. We might insert a sensor for super neat integration, but not for now.

			ABS is solved just like in [[Touran Conversion]]

			Same goes for oil pressure. With the sense line permanently shorted to GND we get an error at 0 rpm, with it open we get an error above 500 rpm or so. So we generate a signal that only pulls to GND above 700 rpm. I inserted the single pin into the grey 6-pin connector and bridged it to the VCU-generated signal on that same connector.

	Low oil can only be cured by supplying the required signal: https://wiki.a2-freun.de/wiki/index.php/G266_-_Geber_f%C3%BCr_%C3%96lstand_und_%C3%96ltemperatur		Low oil can only be cured by supplying the required signal: https://wiki.a2-freun.de/wiki/index.php/G266_-_Geber_f%C3%BCr_%C3%96lstand_und_%C3%96ltemperatur

	I simulate the signal with a simple IO pin that is toggled "manually" as the time constants are rather long.		I simulate the signal with a simple IO pin that is toggled "manually" as the time constants are rather long.

Johu: /* Silence errors */

2022-03-06T22:16:25Z

Silence errors

← Older revision		Revision as of 22:16, 6 March 2022
Line 520:		Line 520:

	== Silence errors ==		== Silence errors ==
			[[File:Tog2.png\|thumb\|Wave form to silence oil level warning]]
	After disconnecting the engine and removing the ECU we have 3 errors: Low coolant level, low oil, ABS/ESP. Coolant level can be silenced by simply shorting out the corresponding sense pins. We will use the coolant reservoir of the Prius inverter. We might insert a sensor for super neat integration, but not for now.		After disconnecting the engine and removing the ECU we have 3 errors: Low coolant level, low oil, ABS/ESP. Coolant level can be silenced by simply shorting out the corresponding sense pins. We will use the coolant reservoir of the Prius inverter. We might insert a sensor for super neat integration, but not for now.

	Low oil can only be cured by supplying the required signal: https://wiki.a2-freun.de/wiki/index.php/G266_-_Geber_f%C3%BCr_%C3%96lstand_und_%C3%96ltemperatur		Low oil can only be cured by supplying the required signal: https://wiki.a2-freun.de/wiki/index.php/G266_-_Geber_f%C3%BCr_%C3%96lstand_und_%C3%96ltemperatur

	~~It's a kind of PWM. We will connect it to~~ a ~~timer~~ pin of the ~~our VCU and try to fake it~~.		I simulate the signal with a simple IO pin that is toggled "manually" as the time constants are rather long.