161 lines
5.4 KiB
Markdown
161 lines
5.4 KiB
Markdown
<a href="https://www.ebay.com/itm/334094173341"><img src="Images/ebay_gen_button.gif"></a>
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This development board is PnP for Mercedes with the 128 Pin ECU (could be used on M104, M111, M112 and M113 engine; late 90s-early 2000s. confirm your ECU _harness_)
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[Download release firmware](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_hellen128.zip)
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[Snapshot firmware bundle](https://rusefi.com/build_server/rusefi_bundle_hellen128.zip)
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[Pinout](https://rusefi.com/docs/pinouts/hellen/hellen128/) & [Google Sheet](https://docs.google.com/spreadsheets/d/1I-lZKRajTiEGFUXdZpXEtKF2pymlOo-lPahy3cLMnl4) & [Another Google Sheet](https://docs.google.com/spreadsheets/d/1JgGFJ8AggBFiKT_CQ1D6uYhaIsqeiH9RerxuVy1kp4Y/)
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[Issue Tracker](https://github.com/rusefi/hellen128merc-issues/issues)
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[Schematics rev a]](Hardware/Hellen/hellen128mercedes-a-schematic.pdf)[[iBom rev a](https://rusefi.com/docs/ibom/hellen128mercedes-a-ibom.html)
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[Schematics rev b]](Hardware/Hellen/hellen128mercedes-b-schematic.pdf)[[iBom rev b](https://rusefi.com/docs/ibom/hellen128mercedes-b-ibom.html)
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## Hardware features
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* ME 2.0 pinout
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* supports both smart and dumb coils
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* ?
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4 cylinder configuration
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With R80 on the back side
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[test points](Hardware/Hellen/hellen128mercedes-rev-b-reference-4-cylinder-test-points.png)
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[Rev B naked board](Hardware/Hellen/hellen128mercedes-rev-b.jpg)
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[Rev A naked board](Hardware/Hellen/hellen128mercedes-rev-a.jpg)
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## Extension Pads (rev. a)
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| Pin | Type | Comments |
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|---|---|---|
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||**Outputs**||
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| P33 | Bridge driver B | 3 A peak |
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| P34 | Low side | 0.5 A |
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| P35 | Low side | 0.5 A |
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| | **Inputs** | |
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| P30 | Analog pull up | |
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| P31 | Analog pull down | |
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| P32 | Analog pull down | |
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| | **MCU** | |
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| J1 | SPI, UART/GPIO | See schematic for details |
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| | **WBO1** | |
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| J9 | XH-8 WBO1 connector| |
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| P19 | GND | |
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| P21 | H- | |
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| P22 | R Trim | |
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| P23 | Ip | |
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| P24 | Vs/Ip | |
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| P25 | Vs | |
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| J7 | SWD| |
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| | **WBO2** | |
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| J18 | XH-8 WBO2 connector| |
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| P18 | GND | |
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| P20 | H- | |
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| P26 | R Trim | |
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| P27 | Ip | |
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| P28 | Vs/Ip | |
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| P29 | Vs | |
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| J19 | SWD | |
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## Extension Pads (rev. b)
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| Pin | Type | Comments |
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|---|---|---|
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||**Outputs**||
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| P19 | Low side | 0.5 A |
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| P33 | Bridge driver B | 3 A peak |
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| P34 | Low side | 0.5 A |
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| P35 | Low side | 0.5 A |
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| | **Inputs** | |
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| P30 | Analog pull up | |
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| P31 | Analog pull down | |
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| P32 | Analog pull down | |
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| P36 | Analog pull down | |
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| P40 | Analog pull up | |
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| P41 | Analog pull up | |
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| | **MCU** | |
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| J1 | SPI, UART/GPIO | See schematic for details |
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| | **WBO1** | |
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| J9 | XH-8 WBO1 connector| |
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| | **WBO2** | |
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| J18 | XH-8 WBO2 connector| |
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## Ignition jumpers (rev. a, rev. b)
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| Vehicle | F2 | F3 | F4 | F5 | F6 | F7 | F8 | F9 | F10 | F11 | F12 | F13 | F14 | F15 | F16 | F17 |
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| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
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| Connctor pin **(NOT jumper designator!!!)** | F4 | F5 | F6 | F7 | F9 | F10 | F11 | F12 | F13 | F14 | F16 | F17 | F18 | F19 | F20 | F21 |
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| IGNx signal | IGN5 | IGN5 | IGN3 | IGN3 | IGN7 | IGN7 | IGN8 | IGN8 | IGN4 | IGN4 | IGN2 | IGN6 | IGN6 | IGN2 | IGN1 | IGN1 |
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| 4 cyl 2 coil | 🟡 | 🟡 | 🟡 | 🟡 | 🟡 | 🟡 | 🟡 | 🟡 | ✔️ | 🟡 | 🟡 | 🟡 | 🟡 | 🟡 | ✔️ | 🟡 |
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| Other model | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? |
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🟡 - it doesn't matter, the specified pin is not connected
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| Coil type | R43 | R59 | R67 | R60 | R79 | R66 | R74 | R62 | R76 | R63 | R77 | R64 | R78 | R65 | R73 | R61 |
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| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
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| Dumb | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ |
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| Smart | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ |
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# 4 cylinder application
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* uses inj 5-6-7-8 for INJ
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* two IGBT: Q1 & Q3
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* one MOSFET soldered instead of IBGT for clutch solenoid
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* INJ3 with fly-back for boost control solenoid
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# M104
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* three IGBT: Q1, Q3 & Q5
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[Vault-Of-Mercedes-OEM](Vault-Of-Mercedes-OEM)
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[Mercedes-C230-and-SLK230](Mercedes-C230-and-SLK230)
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# FAQ
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## Would this work on my all original Mercedes?
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Hellen 128 was originally designed for M111 swaps into W201. Depending on the year some W202, R170 and other models could be driven with different amount of supporting mods:
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* Somewhere around 99 Mercedes has transitioned from just plain wires on C40 and D3 to CAN-bus starter security. For those later models one would have simplify starter wiring and add a start button
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* And obviously your engine harness should use <a href="Images/mercedes-128.png">this ME 2.0 style of plug</a> not <a href="Images/mercedes-134.png">this 134 pin style of plug</a>.
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# Changelog
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## rev C
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* wastegate diode
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## rev B Aug 27, 2021
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* better provisions for high-current control of supercharger [clutch solenoid on M111 Q6 R80](https://github.com/rusefi/hellen128merc-issues/issues/10)
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* ignition fuse changed from 36915000000 5A to 2010-T10A0V2T11192AM5G 10A. 0697H9100-02 could be use for refitting of rev A
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## rev A June 10, 2021
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* good to drive, great success!
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## Spare Parts
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ISL9V3040S3S is the large IGBT driver (same thing as ISL9V3040S3ST)
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Smaller NGD8201AN or ISL9V3040D3ST could probably be used as well.
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