This topic has started as request assistance with buy to choose all options correctly.
However I will need probably more assistance so would like also share gained information with others to help with further installations.
Goal: Fit VEMS to control BMW M62B44(no Vanos) modified engine but still natural aspirated.
hint: when installing, make it separate page for each project (to avoid disambiguaty)
Stock M62 parameters:
- V8
- DOHC without VANOS
- STOCK ECU BOSCH DME M5.2
- Fully sequential injection
- 8 coils "passive"
- ABS ring wheel speed signal (direct)
- Idle : ZWD "idle speed is controlled on the M62 engine by means of a two-winding rotary actuator"
Stock signals:
- Inputs
- Crank sensor : VR reading signal from flywheel
- Cam sensor : Hall reading signal from intake cam cylinder 1to4
- 1x TPS
- MAT
- CLT
- 4channel Knock
- 2x Narrow band
- Outputs
- Coil direct to spark, have a build in IGBT drivers(8 totally)
- Injectors are High impedance/ High-Z
- Idle valve (ZWD two-winding rotary actuator)
Target M62 parameters:
- NA
- Stock VR Crank sensor
- Stock HALL Cam sensor
- 8x Stock Passive Coils
- Stock Idle control (13 41 1 733 090)
- is that dual solenoid ?
- ITB from S62 also with injectors High-Z
- Alfa N
- Intake air pressure
- Electric accelerator pedal module (35 42 6 786 281)
- Drive by Wire actuator from S62 (12 72 7 831 246)
- CAN-bus type like S65/S68 ?
- or traditional dummy (non CAN-bus) to drive with VEMS Bridge Output driver ?
- 2x wide band
- 2x EGT
- 2x Knock
- Flat shift
Signals:
- Inputs
- Crank sensor : VR reading signal from flywheel
- Cam sensor : Hall reading signal from intake cam cylinder 1to4
- 2x Wide Band closed loop
- 2x EGT
- 1x TPS
- MAT
- CLT
- 2channel Knock
- Electric accelerator pedal module - double resistor
- CAN bus (for 1 CAN IAC-valve and 2*CAN throttles ?)
- Speed sensing S62 ABS rings on rear axle
- Fuel Pressure
- Oil Pressure
- Oil Temperature
- Outputs
- Coil direct to spark, need IGBT driver (8 totally)
- Injectors are High impedance/ High-Z
- Idle valve (ZWD two-winding rotary actuator)
- Throttle actuator Control (BridgeOutputDriver)
- PWM FAN control
- CAN bus (Signal for S54 instrument cluster)
- Alarm control/signal “LED”
Dominik's Mercedes V8 engine (sounds like this section should move to separate page):
- can we implement 8 high current [ignition drivers] => those would be able to control 2 ignition coils each.
- can we add 8 further ignition drivers to to the 8 ignition outputs (2 parallel on each output)?
yes, Either
- order with 0 IGBT (8 logiclevel), and order
- [3 clamping plates]
- and 1 [insulatorsheet] (3 lines)"
- this allows using an external heatsink to mount 16 IGBTs in 3 lines
OR
- order with 8 IGBT , and order comment: "please wire the 8 internal LOGICLEVEL IGBT gate-drives to flying loom EC10 connector, and add 2 clamping plates, and 1 insulatorsheet (2 lines)"
- this allows using an external heatsink to mount 8 IGBTs in 2 lines
Alternatively request "200 mm long flanged box".
Either to fit 16 IGBT-s inside ECU, or 2 complete VEMS ECU-s (also provides redundancy)
- 2 ECU would fit siamese in 100mm long extrusion (one to front and one to back: with external MAP sensor)
- or if driving total 16 passive ignition coils (from 8 or 16 ignition IGBTs, either from 1 or 2 ECUs) the 200mm => added surface provides more "thermal room" for slightly longer dwell (during long rally sessions, under suboptimal conditions, eg. >80C).
- with careful installation and measurements + testing: possible to drive 2*8 passive igncoils from 8 IGBTs even from standard VEMS ECU : too high dwell (configured) would result in insufficient cooling situation
- other M62b44 projects MembersPage/Qualitec
Modified M62 parameters:
Displacement changed to 4734cc
Injectors 257 cc/min 12ohm (Stock S62)
Firing order 1-5-4-8-6-3-7-2
Modified ECU parameters:
I have decide to change case as there was lot of components connected by flying looms.
Case: GAINTA G 0478
X:190,5mm;Y:190,5mm;Z:66,5mm ALU
Components:
VEMS board, Bridge Output Driver, Bluethoot, 5V DC/DC converter
Connectors:
AMPHENOL MIL 5015
DS3102A18-1S PIN:10;13A >> 2x WBO
DS3102A10SL-3S PIN:3 ;13A >> VR Primary trigger (shielded)
DS3102A28-21S PIN:37;13A >> EC36
DS3102A28-12S PIN:26;13A >> EC18 + EC10
DS3106A20-15S PIN:7 ;23A >> 2 Pushpull + 4 High-side outputs
===================================================
Engine is running,now in sequential.
Trigger log:
