Tesla Model 3 Charger/DCDC ("PCS") - Revision history

Maboyce: Fixed typo - 'EVBWM'

2026-02-09T23:01:37Z

Fixed typo - 'EVBWM'

← Older revision		Revision as of 23:01, 9 February 2026
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	=== Controller ===		=== Controller ===
	Damien from EVBMW has designed a control solution which is open source hardware and software. Design files for the controller hardware and software sources are available on Damien's GitHub [https://github.com/damienmaguire/Tesla-Model-3-Charger here]. Controllers are also available as a fully-built kit (with pre-loaded software) on the ~~EVBWM~~ webstore<ref>https://www.evbmw.com/index.php/evbmw-webshop/tesla-boards/tesla-model-3-pcs-con (Backup: [http://web.archive.org/web/20221016211810/https://www.evbmw.com/index.php/evbmw-webshop/tesla-boards/tesla-model-3-pcs-con Web Archive])</ref>.		Damien from EVBMW has designed a control solution which is open source hardware and software. Design files for the controller hardware and software sources are available on Damien's GitHub [https://github.com/damienmaguire/Tesla-Model-3-Charger here]. Controllers are also available as a fully-built kit (with pre-loaded software) on the EVBMW webstore<ref>https://www.evbmw.com/index.php/evbmw-webshop/tesla-boards/tesla-model-3-pcs-con (Backup: [http://web.archive.org/web/20221016211810/https://www.evbmw.com/index.php/evbmw-webshop/tesla-boards/tesla-model-3-pcs-con Web Archive])</ref>.

	=== Data Connector on PCS (12-way) ===		=== Data Connector on PCS (12-way) ===

Tom91: Categories

2024-12-20T16:57:05Z

Collin80: /* Limitations/quirks */

2024-10-17T00:56:10Z

Limitations/quirks

← Older revision		Revision as of 00:56, 17 October 2024
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	=== Limitations/quirks ===		=== Limitations/quirks ===
	* The PCS reacts poorly to small capacity 12v batteries, specifically its DC voltage regulation can behave erratically. ~~Small~~ as ~~in ~~~40AH		* The PCS reacts poorly to small capacity 12v batteries, specifically its DC voltage regulation can behave erratically. Testing with a 60AH battery showed minimal fluctuation. Testing with four 18650 cells as the 12V battery showed violent fluctuation of over 1V. It is recommended to use a reasonably large capacity battery (likely 30-40AH or larger)

	* The PCS CANNOT be commanded to charge over canbus to the controller. It must be told to charge by setting input pin 1 to 12v high (or pin 2 for dcdc charging). This makes it incompatible with certain combinations of controllers and BMS' such as the AEM vcu200 and the aem bms-18		* The PCS CANNOT be commanded to charge over canbus to the controller. It must be told to charge by setting input pin 1 to 12v high (or pin 2 for dcdc charging). This makes it incompatible with certain combinations of controllers and BMS' such as the AEM vcu200 and the aem bms-18

Jokeitch: Added known limitations section

2024-10-16T22:28:37Z

Added known limitations section

← Older revision		Revision as of 22:28, 16 October 2024
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	The current version of the PCS firmware can be found here: https://github.com/damienmaguire/Tesla-Model-3-Charger/releases		The current version of the PCS firmware can be found here: https://github.com/damienmaguire/Tesla-Model-3-Charger/releases

	The current firmware will auto detect what Tesla firmware is installed on the PCS and adjusts the CAN messages accordingly (different versions of the PCS firmware from Tesla have different CAN requirements). It will also auto detect if the PCS is EU or US spec and whether single or three phase AC is connected. It also includes an integrated alert logging function to help diagnose any issues the PCS sees.		The current firmware will auto detect what Tesla firmware is installed on the PCS and adjusts the CAN messages accordingly (different versions of the PCS firmware from Tesla have different CAN requirements, '''if you encounter strange performance from the PCS it could have a different firmware version than expected''', see troubleshooting section). It will also auto detect if the PCS is EU or US spec and whether single or three phase AC is connected. It also includes an integrated alert logging function to help diagnose any issues the PCS sees.

	=== Alerts Logging ===		=== Alerts Logging ===
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	=== AC Charging Test ===		=== AC Charging Test ===
	TBC		TBC



			=== Limitations/quirks ===
			* The PCS reacts poorly to small capacity 12v batteries, specifically its DC voltage regulation can behave erratically. Small as in ~40AH

			* The PCS CANNOT be commanded to charge over canbus to the controller. It must be told to charge by setting input pin 1 to 12v high (or pin 2 for dcdc charging). This makes it incompatible with certain combinations of controllers and BMS' such as the AEM vcu200 and the aem bms-18

			* The minimum recommended HV DC battery voltage for testing is 250V (This needs to be confirmed)


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	* 1x 1p US PCS from circa 2020 model year car		* 1x 1p US PCS from circa 2020 model year car




	~~The minimum recommended HV DC battery voltage for testing is 250V (This needs to be confirmed)~~

	== References ==		== References ==
	<references />		<references />
	[[Category:OEM]] [[Category:Tesla]] [[Category:Charger]] [[Category:DC/DC]]		[[Category:OEM]] [[Category:Tesla]] [[Category:Charger]] [[Category:DC/DC]]

Jokeitch: /* Confirmed Working Models */

2024-10-03T18:39:24Z

Confirmed Working Models

← Older revision		Revision as of 18:39, 3 October 2024
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	=== Confirmed Working Models ===		=== Confirmed Working Models ===
	to date a number of PCS units have been tested and confirmed to work with the current firmware:		to date a number of PCS units have been tested and confirmed to work with the current firmware:
	1x 3p EU PCS from circa 2020 model year car
	1x 1p US PCS from circa 2018 model year car. Running in BMW E46 touring conversion		* 1x 3p EU PCS from circa 2020 model year car
	1x 1p US PCS from circa 2020 model year car		* 1x 1p US PCS from circa 2018 model year car. Running in BMW E46 touring conversion
			* 1x 1p US PCS from circa 2020 model year car

Jokeitch: added possible location of identifying markers on the pcs case

2024-10-01T16:22:08Z

added possible location of identifying markers on the pcs case

← Older revision		Revision as of 16:22, 1 October 2024
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	# model year of the car it came out of		# model year of the car it came out of
	# any serial numbers on the penthouse or pcs itself, from stickers or identifying markings		# any serial numbers on the penthouse or pcs itself, from stickers or identifying markings
	## ~~(TBC~~, ~~locate relevant stickers on pcs~~ and ~~penthouse casing)~~		## Located on the top, above the high voltage connection plug, should be a rectangular white sticker with two numbers that begin with "DEV-" and "SDEVR-"
	# firmware version on the pcs		# firmware version on the pcs
	## In the web interface, this is listed in the "version" row under the "spot values" header, for example "1.16.R"		## In the web interface, this is listed in the "version" row under the "spot values" header, for example "1.16.R"
			##* ''edit, this may just be the firmware version of the PCS controller itself''
	# a dump of parameters from the controller		# a dump of parameters from the controller
	## In the web interface, under the parameters section, there's a link to "download parameters file"		## In the web interface, under the parameters section, there's a link to "download parameters file"

Jokeitch: adding youtube link to troubleshooting section

2024-09-30T20:01:29Z

adding youtube link to troubleshooting section

← Older revision		Revision as of 20:01, 30 September 2024
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	== Troubleshooting/Seeking help ==		== Troubleshooting/Seeking help ==
	If you encounter issues with the PCS, it's generally good practice to collect the following information and [https://openinverter.org/forum/viewforum.php?f=10 create a thread on the forums] with a description as detailed as you can be about the problem		If you encounter issues with the PCS, it's generally good practice to collect the following information and [https://openinverter.org/forum/viewforum.php?f=10 create a thread on the forums] with a description as detailed as you can be about the problem

			All of these instructions are also available in a [https://youtu.be/RYCl0ZL4cG4 youtube video demo by damien]

	# model year of the car it came out of		# model year of the car it came out of

Jokeitch: /* Troubleshooting/Seeking help */

2024-09-30T07:35:34Z

Troubleshooting/Seeking help

← Older revision		Revision as of 07:35, 30 September 2024
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	# model year of the car it came out of		# model year of the car it came out of
	# any serial numbers on the penthouse or pcs itself, from stickers or identifying markings		# any serial numbers on the penthouse or pcs itself, from stickers or identifying markings
	## (TBC, ~~where~~ on ~~the~~ penthouse~~/pcs to locate these~~)		## (TBC, locate relevant stickers on pcs and penthouse casing)
	# firmware version on the pcs		# firmware version on the pcs
	## ~~(TBC~~, ~~exact instructions on where to find~~ this in the ~~web interface)~~		## In the web interface, this is listed in the "version" row under the "spot values" header, for example "1.16.R"
	# a dump of parameters from the controller		# a dump of parameters from the controller
	## ~~(TBC, exact instructions on how to do this through~~ the web interface)		## In the web interface, under the parameters section, there's a link to "download parameters file"
	# A list of all alerts generated in the alert log		# A list of all alerts generated in the alert log
	## ~~(TBC~~, ~~exact instructions~~ on ~~how~~ to ~~find them all~~ in the ~~web interface)~~		## First, enable the alert log system, by selecting "on" next to the row labeled "AertLog" under the "general" subsection under Parameters
			## View the first saved alert by putting 0 into the Alerts row box and hitting enter, then hitting refresh on the top right, then scrolling down to the "PCSAlerts" row within the "spot values" section. This shows the first alert. To see other alerts, repeat by entering 1, 2, 3 etc into the Alerts row box and hitting enter+refresh again
			## to see the total number of alerts you can scroll down to "PCSAlertCnt" in the "spot values" section, note that only 10 alerts can be stored at a time.

	== Hardware ==		== Hardware ==

Jokeitch: Added pcs alert #28 description,

2024-09-30T07:26:18Z

Added pcs alert #28 description,

← Older revision		Revision as of 07:26, 30 September 2024
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	\|-		\|-
	! scope="row" \| 28		! scope="row" \| 28
	\| chgOutputUv \|\| ~~???~~		\| chgOutputUv \|\| The charger was commanded to start, but the AC high voltage is less than what is required to actually charge
	\|-		\|-
	! scope="row" \| 29		! scope="row" \| 29

Jokeitch: Adding a collapsed list of all possible alert log messages, to be filled out with plain text descriptions, also starting a troubleshooting section with instructions on how to gather the specific information needed

2024-09-29T08:14:58Z

Adding a collapsed list of all possible alert log messages, to be filled out with plain text descriptions, also starting a troubleshooting section with instructions on how to gather the specific information needed

Show changes

← Older revision		Revision as of 16:57, 20 December 2024
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	== References ==		== References ==
	<references />		<references />
	~~[[Category:OEM]]~~ [[Category:Tesla]] [[Category:Charger]] [[Category:DC/DC]]		[[Category:Tesla]] [[Category:Charger]] [[Category:DC/DC]]