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Nissan: Update CarSpecs #2782

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9e8325b
Update Nissan Leaf wheelbase based off service manual
gncnpk Sep 10, 2025
2a48d01
Increase nissan leaf steer ratio
gncnpk Sep 11, 2025
88b8036
Update several Nissan vehicle carspecs
gncnpk Sep 11, 2025
d8e0338
Update links and change nissan leaf centerToFrontRatio
gncnpk Sep 11, 2025
671049c
Update comments
gncnpk Sep 11, 2025
cde7baa
Fix typo
gncnpk Sep 11, 2025
af6d7d1
Fix trailing whitespace
gncnpk Sep 11, 2025
0414ae0
Merge branch 'commaai:master' into nissan_car_info
gncnpk Sep 11, 2025
a7663b1
Merge branch 'master' into nissan_car_info
gncnpk Sep 12, 2025
ce7303c
Merge branch 'master' into nissan_car_info
gncnpk Sep 12, 2025
c46d57f
Merge branch 'master' into nissan_car_info
gncnpk Sep 14, 2025
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27 changes: 23 additions & 4 deletions opendbc/car/nissan/values.py
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Original file line number Diff line number Diff line change
Expand Up @@ -55,25 +55,44 @@ class NissanPlatformConfig(PlatformConfig):


class CAR(Platforms):
# Wheelbase validated based off owner's manual,
# Mass based off Nissan spec spreadsheet, averaging MY 2017 4WD curb weight ranges
# https://uk.nissannews.com/en-GB/channels/x-trail?selectedTabId=x-trail-specsAndPricing -> 2017/08/01 The new Nissan X-Trail - Technical Specifications
NISSAN_XTRAIL = NissanPlatformConfig(
[NissanCarDocs("Nissan X-Trail 2017")],
NissanCarSpecs(mass=1610, wheelbase=2.705)
NissanCarSpecs(mass=1675, wheelbase=2.705)
)

# Wheelbase validated based off owner's manual
# Mass based off Nissan press kit for MY 2018
# centerToFrontRatio calculated from curb front and rear axle weights
# https://usa.nissannews.com/en-US/releases/us-2018-nissan-leaf-press-kit -> 2018 Nissan LEAF Press Kit Specs.pdf
NISSAN_LEAF = NissanPlatformConfig(
[NissanCarDocs("Nissan Leaf 2018-23", video="https://youtu.be/vaMbtAh_0cY")],
NissanCarSpecs(mass=1610, wheelbase=2.705),
NissanCarSpecs(mass=1591, wheelbase=2.700, steerRatio=17.68, centerToFrontRatio=0.58),
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@gellis12 gellis12 Sep 16, 2025

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I'm pretty sure the 1591kg mass is only for the base model with the 40kWh pack, which didn't include ProPilot until 2025. I measured my 60kWh car at a Transport Canada scale, and it weighs 1780kg while empty.

{Bus.pt: 'nissan_leaf_2018_generated'},
)

# Leaf with ADAS ECU found behind instrument cluster instead of glovebox
# Currently the only known difference between them is the inverted seatbelt signal.
NISSAN_LEAF_IC = NISSAN_LEAF.override(car_docs=[])

# Wheelbase validated based off owner's manual
# Mass based off Nissan press kit, averaging MY 2018 SL FWD and AWD curb weights
# centerToFrontRatio calculated from averaged MY 2018 SL FWD and AWD curb front and rear axle weights
# https://usa.nissannews.com/en-US/releases/us-2018-nissan-rogue-press-kit
NISSAN_ROGUE = NissanPlatformConfig(
[NissanCarDocs("Nissan Rogue 2018-20")],
NissanCarSpecs(mass=1610, wheelbase=2.705)
NissanCarSpecs(mass=1632, wheelbase=2.706, centerToFrontRatio=0.57)
)

# Wheelbase validated based off owner's manual
# Mass based off Nissan news release for MY 2019
# centerToFrontRatio calculated from curb front and rear axle weights
# https://usa.nissannews.com/en-US/releases/2019-nissan-altima-specifications
NISSAN_ALTIMA = NissanPlatformConfig(
[NissanCarDocs("Nissan Altima 2019-20", car_parts=CarParts.common([CarHarness.nissan_b]))],
NissanCarSpecs(mass=1492, wheelbase=2.824)
NissanCarSpecs(mass=1558, wheelbase=2.825, centerToFrontRatio=0.61)
)


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