bmw m54 pwm vanos setup

[Kamuto]

any news on m54? s54 works perfect, m54 problems

[Kamuto]

seems got cams working

[GintsK]

Great news, i have an M54b25 myself (daily driver in e30), to perform tests.

Regards, Dave

Hi!

Old topic, but I am still in same situation with wide PWM dead zone where cam angle stays fixed. Recently I find same problem on VW Golf R32 engine.
Is there some good method to get such system to work with same precision as we can on  VVTs (hondas. subarus, toyotas where no dead zone exist)? 

From my point of understanding algorithm should be improved with 3 bias points for PID control: 1) middle of dead zone when cam is at target 2)point (DC%) from PID starts when retard desired 3)same for advance.   Something like 50%  30%   70% in real life...

Or.... did I miss something???

Regards
Gints

[VEMS]

Hi guys,

Cam control has been improved in 1.2.34 to resolve these issues, should be ready for initial testing after the Easter weekend.

Best regards, Dave