Hello!
I'm looking how to wire and configure out the infinitely variable inlet vanos, the only one on a S50B30 engine. I want to keep it. Having a look to the EMU manual I see that there are two control types, VVTI and DOUBLE VANOS. The infinitely variable inlet vanos uses 2 solenoids , one in each direction, to move the inlet cam. Similar but difference to the double vanos that uses 4 solenoids, two for each camshaft. I'm a little bit confused because of description of the manual about the double vanos because it says that has two solenoids. The question is, Can the EMU control infinitely variable inlet vanos of a S50B30 engine?
Thanks
S50B30 infinitely variable vanos control
Re: S50B30 infinitely variable vanos control
You have one solenoid per CAM or two solenoids per CAM ?
Re: S50B30 infinitely variable vanos control
2 solenoids per cam on S50B3X
S50B30 only intake (2 solenoids)
S50B32 has both intake and exhaust VANOS (4 solenoids)
S50B30 only intake (2 solenoids)
S50B32 has both intake and exhaust VANOS (4 solenoids)
Re: S50B30 infinitely variable vanos control
Use double vanos if it has 2 solenoids per cam.
EcuMaster Sweden
Re: S50B30 infinitely variable vanos control
Yes it will infinitely control the vannos very well, "double vanos" is a little confusing but it is referring to double solenoid VVT ie s50 etc
There might be diodes in the OEM vanos solenoid plugs, if there is you will need to reverse those and then connect the solenoids to be constantly powered, the EMU only controls the earth.
There might be diodes in the OEM vanos solenoid plugs, if there is you will need to reverse those and then connect the solenoids to be constantly powered, the EMU only controls the earth.
Re: S50B30 infinitely variable vanos control
Thanks for your fast response!
Ok, I will select double vanos and configure just one CAM. Regarding to soft configuration I still have more questions, but I will let them for later, I still have to wire the whole car.
Another confusing thing has been the question of the diodes for solenoids. Its a question that has made me crazy. What I was reading and what I was watching with the scope was just the contrary. Finally I found an explanation, or al least I think I did. There are differences between the S50B30 and the S50B32 engines what to the vanos control refers. The first one uses two ecus, one to control the engine and another one to control the vanos, while in the S50B32 there is only one unit controlling everything. In S50b30 engine the solenoids are fed with +12V and the vanos ecu controls the earth, just like in the Emu, so in this model there is no need of changing the diodes. Looking at the connectors that controls the solenoids, we will see that one of the wire of terminal is +12V and the other one goes direct to the ECU. In the S50B32 is just the contrary, the solenoids are connected to earth and is the ECU who controls the +12V, in this case the diodes have to be changed. If we look at the connector of this model we will see only two wires per cam solenoid connector, but in this case, one wire is the advantage solenoid, the other one is the retard and the earth is directly taken by the solenoid from the cylinder head.
Another question at this point and regarding to the vanos is about the variable camshaft position sensor. S50b30 uses 2 inlet camshaft position sensors to know the position of the cam. One is fixed, and with fixed I mean that the signal is not moving relative to the cramshaft when the cam is moved and the other signal is moving as the cam is moved. I think that the standard vanos ecu count how many cramshaft teeth are between this two signals to know where is the camshaft. These sensors use 8 teeth, so they can know the cam position every quarter revolution of the cramshaft. How do I translate this to the EMU?
Regards.
Ok, I will select double vanos and configure just one CAM. Regarding to soft configuration I still have more questions, but I will let them for later, I still have to wire the whole car.
Another confusing thing has been the question of the diodes for solenoids. Its a question that has made me crazy. What I was reading and what I was watching with the scope was just the contrary. Finally I found an explanation, or al least I think I did. There are differences between the S50B30 and the S50B32 engines what to the vanos control refers. The first one uses two ecus, one to control the engine and another one to control the vanos, while in the S50B32 there is only one unit controlling everything. In S50b30 engine the solenoids are fed with +12V and the vanos ecu controls the earth, just like in the Emu, so in this model there is no need of changing the diodes. Looking at the connectors that controls the solenoids, we will see that one of the wire of terminal is +12V and the other one goes direct to the ECU. In the S50B32 is just the contrary, the solenoids are connected to earth and is the ECU who controls the +12V, in this case the diodes have to be changed. If we look at the connector of this model we will see only two wires per cam solenoid connector, but in this case, one wire is the advantage solenoid, the other one is the retard and the earth is directly taken by the solenoid from the cylinder head.
Another question at this point and regarding to the vanos is about the variable camshaft position sensor. S50b30 uses 2 inlet camshaft position sensors to know the position of the cam. One is fixed, and with fixed I mean that the signal is not moving relative to the cramshaft when the cam is moved and the other signal is moving as the cam is moved. I think that the standard vanos ecu count how many cramshaft teeth are between this two signals to know where is the camshaft. These sensors use 8 teeth, so they can know the cam position every quarter revolution of the cramshaft. How do I translate this to the EMU?
Regards.
Re: S50B30 infinitely variable vanos control
The cam is always controlled in comparison to crank position.
You need to use 1 tooth cam trigger wheel for engine synchronisation, and 2nd cam (multitooth) for Vanos control.
So connect fixed cam position sensor to secondary input, cam with multitooth to CAM#2 input, and use VVTi#2 configuration and tables to control cam position.
You need to use 1 tooth cam trigger wheel for engine synchronisation, and 2nd cam (multitooth) for Vanos control.
So connect fixed cam position sensor to secondary input, cam with multitooth to CAM#2 input, and use VVTi#2 configuration and tables to control cam position.