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VW MQB: release standstill hold on gas override - #3536

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VW MQB: release standstill hold on gas override#3536
andiradulescu wants to merge 2 commits into
commaai:masterfrom
andiradulescu:vw-mqb-gas-override-hold-release

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@andiradulescu

@andiradulescu andiradulescu commented Jul 12, 2026

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Continuation of @jyoung8607’s mqb-accel-override

Fixes #1159

Keep ACC in the driver-override state and request standstill hold release when accelerating from a stop while engaged. Send VW’s inactive acceleration value while openpilot longitudinal control is overridden.

Although happens way less often than in 2023/2024, it still happens to brake for ~1s when overriding from a standstill.

Validation

  • Dongle ID: ca83aca15dc27f35
  • Route: ca83aca15dc27f35/000000a2--caa169b80e/22

EDIT: this might not be needed anymore if #3135 and #3165 get merged.

@github-actions github-actions Bot added car related to opendbc/car/ volkswagen labels Jul 12, 2026
@andiradulescu
andiradulescu force-pushed the vw-mqb-gas-override-hold-release branch from 93b20ee to 54adab4 Compare July 12, 2026 23:45
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Car behavior report

Replays driving segments through this PR and compares the behavior to master.
Please review any changes carefully to ensure they are expected.

Testing 130 segments for: VOLKSWAGEN_ARTEON_MK1, VOLKSWAGEN_ATLAS_MK1, VOLKSWAGEN_CRAFTER_MK2, VOLKSWAGEN_GOLF_MK7, VOLKSWAGEN_JETTA_MK7, VOLKSWAGEN_PASSAT_MK8, VOLKSWAGEN_PASSAT_NMS, VOLKSWAGEN_POLO_MK6, VOLKSWAGEN_TAOS_MK1, VOLKSWAGEN_TIGUAN_MK2, VOLKSWAGEN_TOURAN_MK2, VOLKSWAGEN_TRANSPORTER_T61, VOLKSWAGEN_TROC_MK1

✅ 0 changed, 130 passed, 0 errors

@andiradulescu
andiradulescu force-pushed the vw-mqb-gas-override-hold-release branch from 54adab4 to 6537758 Compare July 13, 2026 18:30
@andiradulescu andiradulescu changed the title Volkswagen: release standstill hold on gas override VW MQB: release standstill hold on gas override Jul 13, 2026
@andiradulescu
andiradulescu force-pushed the vw-mqb-gas-override-hold-release branch from 6537758 to 4fb2ce4 Compare July 13, 2026 19:11
@sshane

sshane commented Aug 3, 2026

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Can you see if MQB could just use the MEB long state machine class?

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VW experimental long: Sudden Deceleration From Stop

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