Chevrolet Volt Charger - Revision history

Arber333 at 17:59, 13 February 2026

2026-02-13T17:59:29Z

← Older revision		Revision as of 17:59, 13 February 2026
Line 43:		Line 43:
	0x304 4 0x40 0xC8 0x03 0x34		0x304 4 0x40 0xC8 0x03 0x34

	0x212 contains both the HV (~360v) rail and also the LV (~12v) rail current/voltage information.<br>		0x212 charger report contains both the HV (~360v) rail and also the LV (~12v) rail current/voltage information.<br>
	HV Current: first 13 bits (divide by 20 for Amps)<br>		HV Current: first 13 bits (divide by 20 for Amps)<br>
	HV Voltage: next 10 bits (divide by 2 for Volts)<br>		HV Voltage: next 10 bits (divide by 2 for Volts)<br>

Arber333 at 17:58, 13 February 2026

2026-02-13T17:58:52Z

Arber333 at 17:57, 13 February 2026

2026-02-13T17:57:31Z

← Older revision		Revision as of 17:57, 13 February 2026
Line 43:		Line 43:
	0x304 4 0x40 0xC8 0x03 0x34		0x304 4 0x40 0xC8 0x03 0x34

	~~Current measurement is in returned message~~ 0x212 ~~data byte0~~ and ~~data byte1 as a 16 bit integer, then~~ divide ~~that~~ by ~~158~~ to ~~read actual output current.~~		0x212 contains both the HV (~360v) rail and also the LV (~12v) rail current/voltage information.
			HV Current: first 13 bits (divide by 20 for Amps)
			HV Voltage: next 10 bits (divide by 2 for Volts)
			LV Current: next 8 bits (divide by 5 for Amps)
			LV Voltage: next 8 bits (divide by 10 for Volts)

			0x30A seems it could be related to the AC input:
			AC Current: first 12 bits (divide by 5 perhaps?)
			AC Voltage: next 8 bits (multiply by 2 seems logical)

	Charger really needs liquid cooling as it gets hot quickly when charging at 8A.		Charger really needs liquid cooling as it gets hot quickly when charging at 8A.
	[[File:Ampera Volt gen1 charger.jpg\|thumb]]		[[File:Ampera Volt gen1 charger.jpg\|thumb]]
	[[Category:Chevrolet]] [[Category:Opel]] [[Category:Charger]]		[[Category:Chevrolet]] [[Category:Opel]] [[Category:Charger]]

Tom91: Categories

2024-12-20T16:37:25Z

Mark: Fixed a few spelling errors

2022-11-01T14:08:02Z

Fixed a few spelling errors

← Older revision		Revision as of 14:08, 1 November 2022
Line 1:		Line 1:
	This unit is CAN controlled also. It is actually two chargers in one box. One module charges 12V battery up to 30A worth. Second module is HV charger and it can operate from 200V up to 420Vdc. Usually it provides 8A for charging the main battery.		This unit is CAN controlled also. It is actually two chargers in one box. One module charges 12V battery up to 30A worth. Second module is HV charger and it can operate from 200V up to 420Vdc. Usually it provides 8A for charging the main battery.
	[[File:New-Doc-2018-12-26-20.25.04 1.jpg\|thumb]]		[[File:New-Doc-2018-12-26-20.25.04 1.jpg\|thumb]]
	First we need to connect to 12V battery. Second connector provides control voltage and interlock in case of EVSE malfunction. Note charger has two CAN bus lines. We only utilise the first one as seen from the ~~schetch~~. Drawn is connector from charger side.		First we need to connect to 12V battery. Second connector provides control voltage and interlock in case of EVSE malfunction. Note charger has two CAN bus lines. We only utilise the first one as seen from the sketch. Drawn is connector from charger side.


	The Lear operates CAN at 500Kbps.		The Lear operates CAN at 500Kbps.

	Select which of the charger modules you ~~whish~~ to operate. Only one msg is sent for heartbeat, do not send all three messages!		Select which of the charger modules you wish to operate. Only one msg is sent for heartbeat, do not send all three messages!

	Address DLC Data0 Data1 Data2 Data3		Address DLC Data0 Data1 Data2 Data3

Crasbe: Crasbe moved page Chevy volt charger to Chevrolet Volt Charger: Make titles consistent

2022-06-29T20:42:21Z

Crasbe moved page Chevy volt charger to Chevrolet Volt Charger: Make titles consistent

← Older revision	Revision as of 20:42, 29 June 2022
(No difference)

Arber333: Added connector schematics

2022-01-10T12:19:36Z

Added connector schematics

← Older revision		Revision as of 12:19, 10 January 2022
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	0x30E 1 0x02 Turn on HV Charging		0x30E 1 0x02 Turn on HV Charging
			[[File:Volt gen1 charger Control1.png\|thumb]]
	0x30E 1 0x03 Turn on aux12vdc and turn on HV Charging		0x30E 1 0x03 Turn on aux12vdc and turn on HV Charging

Line 21:		Line 21:

	0x304 4 0x40 0xA0 0x03 0x20 Charge at 8amps to 400.0vdc		0x304 4 0x40 0xA0 0x03 0x20 Charge at 8amps to 400.0vdc
			[[File:Volt gen1 charger Control2.png\|thumb]]
			[[File:Volt gen1 charger DC.png\|thumb]]
	This is sent at 500ms interval		This is sent at 500ms interval

	Address 0x304 Data0 is an unknown at present, but seem to be 40 or 48 in the Volt.		Address 0x304 Data0 is an unknown at present, but seem to be 40 or 48 in the Volt.
			[[File:Volt gen1 charger AC.png\|thumb]]
	Address 0x304 Data1 is the current commanded, convert to decimal and divide by 20.		Address 0x304 Data1 is the current commanded, convert to decimal and divide by 20.

Crasbe: Fixed category tag.

2022-01-07T01:03:00Z

Fixed category tag.

← Older revision		Revision as of 01:03, 7 January 2022
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	[[File:Ampera Volt gen1 charger.jpg\|thumb]]		[[File:Ampera Volt gen1 charger.jpg\|thumb]]

	[[Category:OEM]] [[Category:Chevrolet]] [[Category:Opel]] [Category:Charger]]		[[Category:OEM]] [[Category:Chevrolet]] [[Category:Opel]] [[Category:Charger]]

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

2022-01-07T01:02:38Z

Added categories to the page to allow for better navigation

← Older revision		Revision as of 01:02, 7 January 2022
Line 46:		Line 46:
	Charger really needs liquid cooling as it gets hot quickly when charging at 8A.		Charger really needs liquid cooling as it gets hot quickly when charging at 8A.
	[[File:Ampera Volt gen1 charger.jpg\|thumb]]		[[File:Ampera Volt gen1 charger.jpg\|thumb]]

			[[Category:OEM]] [[Category:Chevrolet]] [[Category:Opel]] [Category:Charger]]

Arber333: Created page with "This unit is CAN controlled also. It is actually two chargers in one box. One module charges 12V battery up to 30A worth. Second module is HV charger and it can operate from 2..."

2021-08-09T11:45:06Z

Created page with "This unit is CAN controlled also. It is actually two chargers in one box. One module charges 12V battery up to 30A worth. Second module is HV charger and it can operate from 2..."

New page

This unit is CAN controlled also. It is actually two chargers in one box. One module charges 12V battery up to 30A worth. Second module is HV charger and it can operate from 200V up to 420Vdc. Usually it provides 8A for charging the main battery.
[[File:New-Doc-2018-12-26-20.25.04 1.jpg|thumb]]
First we need to connect to 12V battery. Second connector provides control voltage and interlock in case of EVSE malfunction. Note charger has two CAN bus lines. We only utilise the first one as seen from the schetch. Drawn is connector from charger side.

The Lear operates CAN at 500Kbps.

Select which of the charger modules you whish to operate. Only one msg is sent for heartbeat, do not send all three messages!

Address DLC Data0 Data1 Data2 Data3

0x30E 1 0x01 Turn on aux12vdc

0x30E 1 0x02 Turn on HV Charging

0x30E 1 0x03 Turn on aux12vdc and turn on HV Charging

This message is sent at 30ms interval

Then send command line.

0x304 4 0x40 0xA0 0x03 0x20 Charge at 8amps to 400.0vdc

This is sent at 500ms interval

Address 0x304 Data0 is an unknown at present, but seem to be 40 or 48 in the Volt.

Address 0x304 Data1 is the current commanded, convert to decimal and divide by 20.

Address 0x304 Data2 first 2 bits are MSB of the voltage command.

Address 0x304 Data3 byte is the LSB of the voltage command. Then MSB LSB is divided by 2.

Example:

Data1 is A0(hex) which is 160 decimal. Divided by 20 is 8 and that is the commanded current.

Data2 is 03(hex) and Data3 is 20(hex) which is 0320(hex) equals 800(decimal) divided by 2 is 400vdc.

Charging at 10A and to 410V

0x304 4 0x40 0xC8 0x03 0x34

Current measurement is in returned message 0x212 data byte0 and data byte1 as a 16 bit integer, then divide that by 158 to read actual output current.

Charger really needs liquid cooling as it gets hot quickly when charging at 8A.
[[File:Ampera Volt gen1 charger.jpg|thumb]]

← Older revision		Revision as of 17:58, 13 February 2026
Line 43:		Line 43:
	0x304 4 0x40 0xC8 0x03 0x34		0x304 4 0x40 0xC8 0x03 0x34

	0x212 contains both the HV (~360v) rail and also the LV (~12v) rail current/voltage information.		0x212 contains both the HV (~360v) rail and also the LV (~12v) rail current/voltage information.<br>
	HV Current: first 13 bits (divide by 20 for Amps)		HV Current: first 13 bits (divide by 20 for Amps)<br>
	HV Voltage: next 10 bits (divide by 2 for Volts)		HV Voltage: next 10 bits (divide by 2 for Volts)<br>
	LV Current: next 8 bits (divide by 5 for Amps)		LV Current: next 8 bits (divide by 5 for Amps)<br>
	LV Voltage: next 8 bits (divide by 10 for Volts)		LV Voltage: next 8 bits (divide by 10 for Volts)<br>

	0x30A seems it could be related to the AC input:		0x30A seems it could be related to the AC input:<br>
	AC Current: first 12 bits (divide by 5 perhaps?)		AC Current: first 12 bits (divide by 5 perhaps?)<br>
	AC Voltage: next 8 bits (multiply by 2 seems logical)		AC Voltage: next 8 bits (multiply by 2 seems logical)<br>

			Charger really needs liquid cooling as it gets hot quickly when charging at 8A. <br>

	~~Charger really needs liquid cooling as it gets hot quickly when charging at 8A.~~
	[[File:Ampera Volt gen1 charger.jpg\|thumb]]		[[File:Ampera Volt gen1 charger.jpg\|thumb]]
	[[Category:Chevrolet]] [[Category:Opel]] [[Category:Charger]]		[[Category:Chevrolet]] [[Category:Opel]] [[Category:Charger]]

← Older revision		Revision as of 16:37, 20 December 2024
Line 47:		Line 47:
	Charger really needs liquid cooling as it gets hot quickly when charging at 8A.		Charger really needs liquid cooling as it gets hot quickly when charging at 8A.
	[[File:Ampera Volt gen1 charger.jpg\|thumb]]		[[File:Ampera Volt gen1 charger.jpg\|thumb]]
			[[Category:Chevrolet]] [[Category:Opel]] [[Category:Charger]]
	~~[[Category:OEM]]~~ [[Category:Chevrolet]] [[Category:Opel]] [[Category:Charger]]