[TYPO3-mvc] How to get arguments from another pluginName controller request

[Kevin Ulrich Moschallski]

Hi,

i have two instances of an extension on one page. One is plugin Pi1 and 
the other one is plugin Pi2. Now when i submit a form from Pi1 i want 
to get $this->arguments from Pi1 in the Pi2 controller.

I tried to inject the Pi1 controller in the Pi2 controller but 
unfortunately the request is empty so there are no arguments.

Is there any way to get the params without using t3lib_div::_POST or _GET?

Thanks for help in advance.

Regards,
Kevin