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Software Requirements (Version 2.0.1)¶
1 Purpose¶
This page captures the mandatory hardware and signal‑level requirements for the upcoming firmware/software release of the Firmware. It serves as a reference for testers, installers and customers to verify that their hardware stack and wiring meet the minimum specifications before flashing the new version.
2 Hardware Prerequisites¶
- Gearbox Control Unit (GCU): Devices with serial numbers GCU2202001 and up require a hardware upgrade to address some of the manufacturing isues (Mandatory)
- Signal‑conditioner board: Required only when interfacing with DCT GS7D36SG speed sensors. (Mandatory for DCT GS7D36SG installations)
3 Required Signal Inputs¶
| Signal | Source | Connection Method | Notes |
|---|---|---|---|
| Brake‑pedal position | Hydraulic switch or position sensor | Analog IN or CAN | On/Off signal |
| Engine RPM | Crank/Cam sensor or ECU | Frequency IN or CAN | |
| Throttle position (TPS) | ECU / DBW | Analog IN or CAN | |
| Accelerator pedal position sensor (PPS) | ECU | Analog IN or CAN | |
| MAP sensor | ECU | Analog IN or CAN | kPa |
| Injector pulse width or Engine torque | ECU | Frequency IN (PW) or CAN (torque) | Provide either PW (µs) or torque (Nm) |
4 DCT GS7D36SG‑Specific Requirements¶
- Install the signal‑conditioner board between the gearbox speed sensors and the GCU.
5 Test log¶
| Transmission | Status |
|---|---|
| GS7D36SG | Tested |
| DQ500 | |
| DQ250 | |
| DL800 | Tested |
| 7DT45 (PDK) | Tested |
| TR9080 |
6 Software implemented features/bug fixes¶
Transmission support - General¶
- Improved reliablilty of valve control
Transmission support - Dual clutch¶
- Reimplemented closed loop pull away (take up)
- Added static tables for clutch pressure-duty and rpm-duty for clutch pressure
- Improved closed loop shifint method
- Improved handling of clutch by wire during driving
- Improved ability to pull away using clutch by wire
- Added feature start from 1st gear after stop
- Added limit of adaptations based on the transmission temperature
Communication¶
- Improved Canbus handling of trafic
- Improved F80 DCT preset for CANbus
- Improved MoTeC support
- Added implementation for ProSpeed MoTeC communication protocol
- Reimplemented USB stack to improve stability of the connection with PC
OEM TCU Support¶
- 8HP45 and 8HP70 Added support for OEM TCU over canbus
- Added diagnostics for BMW 8HPxx transmissions
- 911 997.2 PDK Added draft of support
7 Nottice of obsolecence¶
In the upcomming releases following functions are going to be removed and are no longer supported:
- ZF 4HP transmission
- NSX transmission
- Mercedes 722.6 transmission
- Aisin AA80E transmission
- Aisin A960E transmission
8 Change Log¶
| Rev | Date | Author | Summary |
|---|---|---|---|
| 0.1 | 2025‑07‑10 | AK | Initial draft created |
Updated by Adam Klama 2 months ago · 3 revisions