1. PBM is a microcomputer controlled by CPUs and is powered by the vehicle's generator (PBM begins working after the engine is started), not by the battery.
2. After starting, PBM will detect ECUs (electronic control units) frequency through the vehicle's circuit and transmits a signal at around 10 kHz~80 kHz (depending on different car makes and models) to ECUs. (Ref. 1)
3. PBM has demands from ECUs to the electronic ignition system quickened, which leads to more fuel injection frequency (Ref. 2).
4. PBM also makes power supplied from the battery to the plugs bigger with more amps; therefore, sparkle of the plugs become more concentrated and extended (Ref. 3). Combustion turns out to be even more complete as a result, which results in better torque, horsepower and fuel economy.
5. PBM also provides an oscillation signal to the battery; it will reduce possibility of sulfide attaching to the battery plate to raise efficiency and life of the battery.
6. In conclusion, PBM just makes ECUs smarter.
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Ref. 1
PBM transmits a continual signal based on 10usec circulation (transmits for 8usec, stops for 2usec) to improve ECUs calculation speed.
Ref. 2
General frequency of the fuel injection is around 1msec (1/1000 sec) a time. After installing PBM, the fuel injection will become faster with the same fuel quantity; fuel injected is just thinned to serve the function.
Ref. 3
PBM is powered by the generator and helps the battery upgrade its power supply to the electronic ignition system. This results in stronger and longer sparkle of the plugs to have perfect fuel combustion. |