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How does battery management IC affect vehicle performance?

by:Vglory      2021-04-01
It is obvious how battery management IC affects vehicle performance. My love for electric vehicles is obvious. For more than four years, I have been driving an all-electric car and drove 60,000 miles (about 100,000 kilometers). I choose electric cars for many reasons, but in the final analysis, electric cars are really great. It is surprisingly quiet, its acceleration is unparalleled, it does not need to change the oil, it can go wherever it wants to go, regardless of the impact of speed or time on the journey. According to the technical specifications of the car, there may be one or more parallel batteries, from four series batteries (mini hybrid cars) to 12-16 series batteries (light hybrid cars) to 96 series batteries (electric and hybrid cars) . However, from the perspective of integrated circuits, the number of battery cells in series is the key, and the number of battery cells in parallel can be determined at will. The battery handling system (BMS) is an important hub between the driver, the vehicle and the battery. The BMS contains electronic equipment used to monitor and maintain the battery. I often want to know the purpose of these battery processing equipment, especially the power processing IC of bq76pl455a-q1. In fact, it is this device that allows my car to drive normally together, which improves the car’s utility. As a driver, I am eager to know the life of the battery and when the car's charging will end. I also want to know if my battery is in good condition. I also want to know that my car can accelerate quickly. Let's take a look at the different technical specifications and how the IC can help end the function I want. Extending the journey and accelerating battery life is another way to know the remaining battery power. This parameter is called the state of charge (SoC). Anyone with a mobile phone knows that battery capacity will decrease over time. The maximum amount of power that the battery can maintain at a particular point in time is called the state of health (SoH). There are many ways to consider SoH and SoC, all of which consider battery voltage, battery temperature, and battery pack current. In some lithium-ion chemical batteries, such as lithium iron phosphate, the SoC curve is very steep relative to the battery voltage. A small fault in the battery voltage can cause a major fault in the SoC budget. Although I like electric cars very much, I hope they are cheaper. Obviously, in the cost of cars, batteries account for a large share. The easiest way to cut costs is to do more with less. In battery applications, this means a smaller maintenance frequency band, which in turn means more accurate monitors and maintenance personnel. Normally, maintenance personnel are not as accurate as monitors, so the accuracy of maintenance personnel actually increases the number of maintenance frequency bands. Automatic and forced cell balance is another important function. Assuming that there is no battery balancing, large-capacity batteries will quickly fail. When the first battery is empty, the discharge drive is continuous. When the first battery is fully charged, continue to charge. In the absence of balance, the first full discharge of the battery has nothing to do with the first full charge of the battery; battery balance reduces the charge difference between the two batteries. In this respect, forced balancing works well. In fact, you can use an unusable battery pack to balance once to eliminate drift effects. However, as time goes by, the amount of power the battery can hold will change, and as time goes by, the end of the expansion process will become larger and larger. Car manufacturers have several other ways to reduce costs. First-generation systems usually use a controller LAN (CAN) IC and a blocking program to communicate with the host controller. This is a more valuable way of communication. The new generation of integrated circuits has improved communication methods. Multiple bq76pl455a-q1 can communicate with daisy-chain devices through blocking differential universal asynchronous receiver-transmitter (UART), and the communication can be ended without blocking the device. Cheap capacitors can help you eliminate obstacles. Integrated monitors and maintainers, as well as the increase in the number of batteries that can be monitored by each integrated circuit, also help to further reduce costs. Bq76pl4555a-q1 can monitor up to 16 batteries and has an integrated maintainer, which greatly reduces system costs, especially for 48V light hybrid systems, because one IC can replace up to 4 ICs, 2 12 regulators and 2 12 maintainers. When I drive, I like the best technology in the car battery pack. I also want to drive a car with better and more accurate battery handling integrated circuits into the future. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.
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