Topic
State of charge
About: State of charge is a research topic. Over the lifetime, 12013 publications have been published within this topic receiving 201419 citations. The topic is also known as: SoC & SOC.
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TL;DR: In this article, a simple battery model with constant parameters is used to represent the whole battery pack, which can be used to simulate the battery application and optimize the bandwidth of the battery pack model.
104 citations
TL;DR: In this article, the authors proposed a revised Ah counting method for state of charge (SOC) estimation by correlating the available capacity with the amount of dischargeable lithium (Li) in the electrode particles.
104 citations
TL;DR: A long short-term memory neural network based on particle swarm optimization (PSO-LSTM), where the key parameters of LSTM are optimized by PSO algorithm, so that the data characteristics of lithium-ion battery can match the network topology.
104 citations
Patent•
18 Nov 1980
TL;DR: In this article, a microprocessor based electric vehicle traction battery monitoring system is used to evaluate the state of charge, interfaces with a traction motor control system, and controls recharging.
Abstract: A microprocessor based electric vehicle traction battery monitoring system evaluates the state of charge, interfaces with a traction motor control system, and controls recharging. The state of charge is evaluated during the first part of discharge by integrating the current after compensating it for rate of discharge and during the last part of discharge by dividing the battery into sub-packs and evaluating the state of charge from the lowest sub-pack voltage compensated for polarization voltage. The charge storage capacity is also calculated from the lowest sub-pack voltage. The maximum traction motor current is progressively limited during the last part of discharge. During charging, the charge withdrawn is replaced while progressively reducing the charging current and the battery is then charged at a constant current until the rate of rise of the lowest sub-pack voltage falls below a fixed level.
104 citations
Patent•
03 Jan 2002TL;DR: In this paper, the interaction between the combustion engine and battery operated electric motor is controlled by taking energy into the batteries only if it is more efficient than throttling the engine and operating the engine at a lower efficiency.
Abstract: A control method for operating internal combustion engine electric hybrid vehicles with smaller battery packs, particularly in configurations where an electric motor (E/M) or electric motor/generator (E/MG), a battery, and associated controls are inserted between the engine and a continuously variable or automatic transmission. The interaction between the combustion engine and battery operated electric motor is controlled by taking energy into the batteries only if it is more efficient than throttling the engine and operating the engine at a lower efficiency. Additionally, the batteries are charged to a certain state or the batteries are maintained at a particular state of charge. A goal of the invention is to obtain the best possible fuel economy while maintaining good driveability.
104 citations