Zf 8hp70

Posted : admin | On 30-04-2021



Transmission

Zf 8hp70 Pan

Disabled Overcurrent protection experimental feature. More details in community group, LINK

Zf 8hp70
  1. Transbrake strategy operated by HTG tuning Gearbox Control Unit on ZF 8hp70.
  2. Hi folks, New to the forum. Hoping to gain some insight from folks. I have a 2016 Challenger R/T. Bought it new in 2017. Almost right off the bat, the transmission would down shift very harshly when I decelerated, mostly from 2 to 1, and often from 3 to 2 as well. Like, it was so harsh that.

Moreover, weight was reduced by around 3%, making the initial 8HP70 modular system weigh just 87 kg (192 lbs.), including transmission oil. With ZF claiming a 3% reduction in fuel consumption.

Zf 8hp70 Fluid

General bug fixes:
  • MAP outputs fixed – (mostly related to CAN control of dashboards and selectors)
  • GS7D36SG DCT branch control fixed and optimized
    • Zf 8hp70Zf 8hp70
    • Added ability to select calculated VSS for custom axis
    • Added ability to select input for z axis in shift maps
    • Added TCC slip output for 8HPxx
    • Added Gear ration output for 8HPxx
    • Added disabling of unused branch in dual clutch transmissions
    • Added mapping for cuts and blips in dual clutch transmissions
    • Added delay mapping for changing preselection
    • Added maps to set upshift and downshift delays
    • Improved DQ500 adaptation procedure
    • Improved DQ500 selector forks control procedure
    • Added ability to switch gears while standing still in dual clutch transmissions
    • Added mapping for input
    • Added fault monitoring service
    • Clutch control metod improved – UPGRADING TO 1.0.9 WILL REQUIRE TO RE-TUNE SHIFTING TABLES (hint: check prefill pressures). Affects all types of transmissions.
    • Improved take-up for dual clutch transmissions.
    • Improved anti stall protection to two level strategy:
      1: Allow clutch slip below X RPM (take-up pressure table values will be used when RPMs drop below defined level after regular run mode allowing clutch slip as a effect of pressure values),
      0: Disengage take-up mode below X RPM (take-up will go into idle mode below defined RPMs. To reengage take-up mode user has to press PPS above 2%)
    • Added support for 6-speed Aisin A960E transmission
    • Added support for 6-speed Ford 6R transmission
    • Added compare modes to compare inputs
    • Added support for duty based inputs (i.eg. for Ford Mustang gear selector)
    • Added float CAN-bus inputs
    • Improved CAN-bus interpolation
    1. Added 8HP95 Support
    2. Added PDK 7DT Support
    3. Added tuning strategy based on torque calculated by GCU
    4. Optimized control for Dual clutch transmissions
    5. Added shifting queue
    6. Added launch control for Dual Clutch transmissions
    7. Added transbrake for hydraulic transmissions
    8. Added safety interlock for changing transmission modes – now You may configure that additional conditions have to be met before changing mode.
    9. Added option to enable first gear in 8HP transmissions
    10. New outputs:

    Zf 8hp70 For Sale

    • Current Preselection (Dual Clutch transmissions only)
    • Next Preselection(Dual Clutch transmissions only) – next preselected gear if current preselection gear will be executed
    • Transmission temperature
    • Next gear output
    • Target gear output
    • Engine torque
    • Output Shaft speed RPM
    • Vehicle speed (tyre diameter and final drive ratio are taken into consideration)
    • Transbrake status (1024 active, otherwise inactive)
    • Overrev protection active flag (if actual conditions do not allow downshift such flag will be broadcast)
    • Overrev protection lock flag (if downshift request occurs while downshift is forbidden such flag will be broadcast)
    • RPMs after upshift
    • RPMs after down shift
    • Next preselected gear RPM(Dual Clutch transmissions only)
    • GUI improvements
    • solenoid control method changed
    • hotfixes
    • compare inputs debouncing added
    • GUI functioning improved
    • GUI updated (matching version 1.0.3)
    • ZF 8HP control improved
      • pre-shift tables added
    8hp70

    Zf 8hp70

    • VW DQ250 support added!
    • MBT Torque (Nm) input added
    • Preselection is now adjustable with tables:
      • Preselect DS below RPM (x:GEAR, y:PPS, z:RPM)
      • Preselect US above RPM (x:GEAR, y:PPS, z:RPM)
      • Force DS preselection with assigned input
      • Force US preselection with assigned input
    • Added adjustable filtering for FREQ_in

    First official unified release! Instead individual firmwares depending on transmission types we moved on to one firmware being able to operate all of them. 1st release contains various transmission models, remaining ones will be added in future updates.

    Zf 8hp70 Fluid

    • Supported transmission models:
      • ZF 8HP45
      • ZF 8HP50
      • ZF 8HP51
      • ZF 8HP70
      • ZF 8HP75
      • ZF 8HP90
      • ZF 8HP95
      • Getrag DCT GS7d36sg short ratio
      • Getrag DCT GS7d36sg long ratio
      • Getrag DCT GS7d36bg
      • Getrag DCT GS7d70sg
      • VW DQ500 1st generation (Continental)
      • VW DQ500 2nd generation (Bosch)
    • Added strategies:
      • over-rev protection tables
      • torque mapping tables