Jebiruph
Well-Known Member
- Thread starter
- #76
If you bypass the PCR, say by connecting N1 to N2, then the batteries will always act as one battery. You can accomplish the same thing by unplugging the connector that powers the PCR. Neither will disable ESS, it would just prevent the batteries from being separated when ESS auto stops.What if you were to bypass the PCR completely? Would that make the two batteries act as one battery all the time? Could this be another way to permanently disable ESS without doing any harm and without a warning light?
Also, have you figured out how the system is able to check the status of the aux battery before initiating ESS? Does it open the relay (isolating the aux battery) to measure the battery while driving to see if it has enough power to initiate ESS? Maybe it does it simultaneously when you hit your breaks. It takes a quick check of the aux battery and only initiates ESS if adequate power?
My current theory is that the only battery that is monitored is the Main battery. ESS is disabled if the system determines that the Main battery may not be able to power a restart. As long as the system believes it can restart, ESS is enabled and it will auto stop. Once auto stopped, the system can monitor the voltage of the Aux battery and restart if the Aux battery voltage gets to low.
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