Running M142 ECU in a 24V environment

[schakl]

Hello,

is it possible to run the M142 ECU with 24V supply voltage?
Will the voltage regulators inside the ECU lasts this voltage level?
Sensors are supplied by internal 5V/6.3V - so probably not an issue. Same with the low-side outputs as max. voltage is specified with 40/60V here, I think.
Driven DI injectors are of 24V type (inductive). Boost voltage of 90V should be still available with 24V supply, output stage controls current --> so could work anymore, if current level meet the requirements of the injector,

But what's with the full bridge driver to run a DBW unit? Will this work? Is it possible to use a 12V DBW unit?

thanks in advance, Klaus.

[Stephen Dean]

Hi Klaus,

The M1 ECU's are rated up to 32V, so can be used in a 24V system. The Half Bridges outputs are connected to BattV so you will need a 24V DBW motor. I haven't tested a 12V DBW on a 24V system but I have a feeling that it will not like it.

[schakl]

Hi Klaus,

The M1 ECU's are rated up to 32V, so can be used in a 24V system. The Half Bridges outputs are connected to BattV so you will need a 24V DBW motor.

Thanks a lot for this infomation!

I haven't tested a 12V DBW on a 24V system but I have a feeling that it will not like it.

I have the same feeling I'll try to find a 24V DBW unit that fits.

Thanks, Klaus.