Possibly some useful info on the IO of the Bosch 90s/early 2000s controllers. Wasn't sure where best to put it.
https://hermesautoparts.com/autopart.php?autopart=1998_BMW_328I_E36_-_Bosch_Transmission_Control_Unit_Module_EGS_TCM_TCU_24601423436
Transmission Control logic
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Simon@FutureProof
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Re: Transmission Control logic
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AndreyB
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Re: Transmission Control logic
David says:
Any 8 or 10 speed is going to be a clutch-to-clutch transmission, which is very much not supported currently.
Oversimplification: A clutch-to-clutch transmission has a solenoid for each clutch, including torque converter clutch. An old fashioned transmission has sqrt(speeds) + 2 solenoids.
Oh and the clutch-to-clutch generally has one for line pressure control too.
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