What is the core technology of BMS power battery management system?
Release time:2020/8/4 13:58:00
What is the core technology of BMS power battery management system?
Although 6 years have passed, there is still no supplier in the world that can achieve such high precision and high robustness to ensure the foolproof operation of the battery. Even the red and purple Tesla is beyond the reach. The biggest difference between new energy vehicles and traditional vehicles is that they use batteries as power drives, so the technology of power batteries is the core of new energy vehicles.
What is the core technology of BMS?
Usually BMS system usually includes detection module and operation control module.
The battery state estimation is usually to estimate SOC, SOP and SOH. SOC (State of Charge) is simply how much electricity is left in the battery; SOC is the most important parameter in BMS, because everything else is based on SOC, so its accuracy and robustness (also called error correction) Ability) is extremely important. If there is no precise SOC, no amount of protection functions can make the BMS work normally, because the battery will always be in a protected state, and the battery life cannot be extended.
In addition, the estimation accuracy of SOC is also very important. The higher the accuracy, the higher the cruising range for the same capacity battery. Therefore, high-precision SOC estimation can effectively reduce the required battery cost. For example, Chrysler’s Fiat 500e BEV can be discharged continuously with SOC=5%. It became the electric car with the longest range at the time.
Although 6 years have passed, there is still no supplier in the world that can achieve such high precision and high robustness to ensure the foolproof operation of the battery. Even the red and purple Tesla is beyond the reach. The biggest difference between new energy vehicles and traditional vehicles is that they use batteries as power drives, so the technology of power batteries is the core of new energy vehicles.
What is the core technology of BMS?
Usually BMS system usually includes detection module and operation control module.
The battery state estimation is usually to estimate SOC, SOP and SOH. SOC (State of Charge) is simply how much electricity is left in the battery; SOC is the most important parameter in BMS, because everything else is based on SOC, so its accuracy and robustness (also called error correction) Ability) is extremely important. If there is no precise SOC, no amount of protection functions can make the BMS work normally, because the battery will always be in a protected state, and the battery life cannot be extended.
In addition, the estimation accuracy of SOC is also very important. The higher the accuracy, the higher the cruising range for the same capacity battery. Therefore, high-precision SOC estimation can effectively reduce the required battery cost. For example, Chrysler’s Fiat 500e BEV can be discharged continuously with SOC=5%. It became the electric car with the longest range at the time.
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