Analyze the vehicle electronic 12V power supply control system
When chatting with friends in the industry, everyone is very interested in the 12V power distribution system. I am here to talk about some simple ones. Simply put, the car is powered by a 12V generator and battery. Schematic 1 is as follows: PCM to control the generator BCM to get the voltage and current of the battery More and more IBS current modules are used here. BCM to state the status of lead-acid batteries Figure 1 Typical 12V system wiring diagram We need to consider here: 1) Does the power of the generator exceed the demand for electricity? A: Need, there are dynamic and static, different driving curves and summer and winter differences. 2) Does the generator overcharge after causing excessive power? A: Overcharge is not a good thing for lead-acid batteries, it also causes energy release. 3) What problems caused after the battery is overcharged? A: The life is reduced, the fuel consumption is increased, and the battery voltage is high. Figure 2 Intelligent control of 12V system In fact, we generally consider static and dynamic requirements to consider: The power of the traditional vehicle can be separated, from the open and the non-open two large states. PT section Other parts of the vehicle We generally separate the new energy vehicles separately because it is quite special. New energy is also divided into different states of the system The charging of new energy is actually quite special. Figure 3 12V load distribution The load table can refer to the following situation, we have to consider Normal power and highest power Consider using load To consider compliance changes at different temperatures Table 1 12V system power meter
Waterproof Bluetooth Speaker with advanced digital sound, noise/wind reduction
technology, and unique loudspeaker cavity structure to deliver premium
acoustic sound and enriched music listening experiences w/ full spectrum
coverage, crispy high note, crystal clear mid-range and balanced bass.We are a professional Chinese manufacturer of Waterproof Bluetooth Speaker , and look forward to your cooperation!
Waterproof Bluetooth Speaker Waterproof Bluetooth Speaker,Bluetooth Waterproof Speaker,Shower Speaker Waterproof Bluetooth,Waterproof Speaker Bluetooth Reteck Electronic Co., Ltd. , https://www.reteck.com
