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Re: Buick Lacrosse 2012 e-assist moto-alternator

Posted: Jun 29 2018 10:33am
by transistorman
Back again with an update. Was unable to find a service manual for the lacrosse :/ but as it turns out the inverter module is the same for the 2013 Chevy Malibu, which is quite a bit more common. I purchased a manual and lo, there are some rough one line diagrams for beginning the reverse engineering! Anyone have any idea where I could find a list of GM CAN declarations (request torque / whatever).
inverter_module.JPG
inverter_module.JPG (210.55 KiB) Viewed 514 times
hybrid_battery_pack.JPG

Re: Buick Lacrosse 2012 e-assist moto-alternator

Posted: Apr 23 2019 12:09am
by electro wrks
Has anybody done any more work trying to use the stock controller(or other controller) with the eAssist motor?

Re: Buick Lacrosse 2012 e-assist moto-alternator

Posted: Apr 29 2019 2:33am
by phate
electro wrks wrote:
Apr 23 2019 12:09am
Has anybody done any more work trying to use the stock controller(or other controller) with the eAssist motor?
I'm planning to pick up one of the eTorque 48v belted motor/generator/alternator units from a new Ram pickup in the next couple months to mess with. I'm thinking these are likely just looking for CAN messages for control of the integrated inverter. My personal goal would be to get it spinning and bolt it to the turbo EJ25 in my Subaru to supplement the lack of torque/responsiveness when the engine is not in boost, but I think they might end up being a solid option, especially since the entire system runs at only 48V.

According to Continental, it's a liquid cooled "alternator" form factor intended to spin at up to 20,000rpm continuously, with 14kW peak output and 16kW peak regen. 150Nm of torque at the crankshaft (after what I'm guessing is a 2-3:1 pulley ratio, so figure like 50Nm from the motor itself).

Re: Buick Lacrosse 2012 e-assist moto-alternator

Posted: Aug 20 2019 2:03pm
by winreboot
transistorman wrote:
Jun 29 2018 10:33am
Back again with an update. Was unable to find a service manual for the lacrosse :/ but as it turns out the inverter module is the same for the 2013 Chevy Malibu, which is quite a bit more common. I purchased a manual and lo, there are some rough one line diagrams for beginning the reverse engineering! Anyone have any idea where I could find a list of GM CAN declarations (request torque / whatever).

inverter_module.JPG
hybrid_battery_pack.JPG
+1 I'm also looking in to utilizing the oem battery pack with inverter. By any chance did you made any progress in capturing can bus frames to see if they can be replay to get the motor turning?