VW PQ: Update HCA Status to use Mode 2 (Status 7) #2722
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This PR aims to switch VW PQ to use HCA Status 7 (HCA7) instead of HCA Status 5 (HCA5), which would increase the available lateral torque usable by openpilot. HCA7 lacks the recentering force that constantly fights openpilot for lateral torque in HCA5. The lack of this recentering force increases the torque that openpilot can command. This change wasn’t previously merged due to issues controlling HCA7, but with the new MLSIM models, architecture updates, and OpenDBC refactor, many recent users (including myself) are running HCA7 and report it to be more stable and controllable & an increase in torque compared to HCA5.
This behavior should be present in stock openpilot as it gets rid of almost any torque warning or lack of torque on the highway & increases available torque for lower speed driving.
Validation
4a824aa67cbfcd85/00000012--6672ca6b12
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more routes will be given if needed.