A fault diagnosis method of battery internal short circuit based
A fault diagnosis method of battery internal short circuit based on multi-feature recognition detection of soft internal short circuit in lithium-ion batteries at various standard charging ranges. IEEE Access 8: 70947–870959. Crossref. Google Scholar. Sun JL, Liu W, Tang CY, et al. (2021) A Novel active equalization method for series
Battery voltage transfer method for multi-cells Li-ion battery pack
In order to suppress leakage current caused in the traditional multi-cells series Li-ion battery pack protection system, a new battery voltage transfer method is presented in this paper, which uses the current generated in the transfer process of one of the batteries to compensate for the leakage of itself and other cells except the top cell. Based on the 0.18 µm
Putting Safety into Li-ion Battery Packs
companion IC to a multi-cell monitor/balancer. A power FET IC is useful in high cell count applications (> 16 cell detection without cell balancing considerations is a voltage measurement that is monitored for over Consider a 20V battery pack having a short circuit current of 100A. The graph below shows that the FET can
An Online Detection Method of Short Circuit for Battery Packs
Download Citation | On Mar 25, 2022, Hongzhong Ma and others published An Online Detection Method of Short Circuit for Battery Packs | Find, read and cite all the research you need on ResearchGate
Novel broken line detection circuit for multi‐cells
A novel broken line detection circuit for multi-cells Li-ion battery packs is proposed, designed and experimentally validated with an IC prototype from 0.18 μm 45 V BCD process technology. With the detection function only
A Broken Line Detection Circuit for Multi-cell Li-ion Battery
The undetected open circuit in a battery pack might result in wrong readings of the battery state, and even safety issues. Therefore, to constantly and accurately detect perfect connection of
The Multi-variable Stepwise Algorithm for Internal Short Circuit
Request PDF | On Jan 1, 2024, Hejie Lin and others published The Multi-variable Stepwise Algorithm for Internal Short Circuit Detection in a Serial Battery Pack with Inconsistent State of Health
Battery voltage transfer method for multi-cells Li-ion battery pack
circuitry, and high detection accuracy, Li-ion battery pack protection chips with overcharge protection, over discharge protection, overcurrent protection and other functions have been widely used in Li-ion battery charging and dis-charging systems [9, 10]. The voltage transfer circuit is an important circuit in the multi-cells Li-ion battery pack
Online multi-fault detection and diagnosis for battery packs in
An internal short circuit initially appears as a micro-short circuit within the battery cell, which is usually caused by diaphragm breakage. This paper presents an online diagnostic method for multi-fault diagnosis in battery packs of EVs. Internal short circuit detection for battery pack using equivalent parameter and consistency
Battery Protection ICs for Multi-cell Pack
Lineup Diversity Facilitating "Appropriate Circuit Configuration" If we include products that can be used with 1-cell batteries and automotive applications, our lineup offers about 2,100
[PDF] A Broken Line Detection Circuit for Multi-cell Li-ion Battery
A system-level experiment verifies that the proposed circuit can reliably detect any disconnection of Li-ion battery pack and the following circuit to ensure the safety of the system. This paper presents a novel broken line detection circuit for multi-cell Li-ion Battery modules. The broken line detection technique detects test lines between the battery pack and any following circuit, e.g
A Broken Line Detection Circuit for Multi-cell Li-ion Battery
This paper presents a novel broken line detection circuit for multi-cell Li-ion Battery modules. The broken line detection technique detects test lines between
New Battery Pack Monitor Protects Multi-Cell Li-ion
Intersil Corp. recently announced the ISL94203 3-to-8 cell battery pack monitor that supports lithium-ion (Li-ion) and other batteries. The ISL94203 can monitor, protect, and cell balance rechargeable battery packs to
Multi-fault detection and diagnosis method for battery packs
In this paper, a statistical analysis-based multi-fault diagnosis method is proposed to detect and localize short circuit faults, electrical connection faults and voltage
Multicell Voltage Monitoring for Lithium
In this article we will learn how we can measure the individual cell voltage of the cells used in a Lithium battery pack. For the sake of this project we will use four lithium
Data-Driven Thermal Anomaly Detection in
The early detection and tracing of anomalous operations in battery packs are critical to improving performance and ensuring safety. This paper presents a data-driven approach for online
Dual-Cell Supervisor Circuit for High-Voltage Automotive Battery Packs
While the present disclosure may use dual-cell supervisor circuits in a wide variety of battery system applications, for the sake of brevity, the present description refers to selected dual-cell supervisor circuits embodiments without describing in detail conventional techniques related to current injection stages and/or impedance-detection stages which use low drop out (LDO)
Reliable Online Internal Short Circuit Diagnosis on Lithium-Ion Battery
The ISC diagnosis algorithm that is proposed in this paper can effectively identify the gradual ISC process in advance of it and the diagnosis and pre-warn ability of the proposed algorithm for an ISC and thermal runaway in batteries are verified. The safety issue of lithium-ion batteries is a great challenge for the applications of EVs. The internal short circuit
Novel broken line detection circuit for
A novel broken line detection circuit for multi-cells Li-ion battery packs is proposed, designed and experimentally validated with an IC prototype from 0.18 μm 45
A Multi-Fault Diagnosis Method for Battery Packs Based on Low
The fault diagnosis process of battery pack is restricted to its complex internal structure, chemical characteristics and nonlinearity. Internal short circuit (ISC) fault and virtual connection (VC) fault are two imperceptible fault types that can cause severe consequence, such as thermal runaway, which may lead to fire accident. The existing methods detect aforementioned faults by
Battery Internal Short Circuit Detection | Request PDF
Zhang et al. [15] proposed a diagnostic method for micro-short circuit (MSC) fault utilizing a symmetrical loop circuit topology for battery packs. A statistical detection method was proposed by
A multi-cell battery pack monitoring chip based on 0.35-µm BCD
A multi-cell battery pack monitoring chip based on 0.35-µm BCD technology for electric vehicles Xiaofei Wang1, Hong Zhang2, Jianrong Zhang2, Changyi Li 2, Xin Du, and Yue Hao1a) 1 School of Microelectronics, Xidian University, Xi''an 710071, China 2 Department of Microelectronics, Xi ''an Jiaotong University, Xi an 710049, China a) haoyue@xidian .cn
Online multi-fault detection and diagnosis for battery packs in
Request PDF | Online multi-fault detection and diagnosis for battery packs in electric vehicles | Rapid detection and accurate diagnosis of faults are essential to safe operation of battery packs
Fault diagnosis and abnormality detection of lithium-ion battery packs
To ensure the operation security and reliability of the battery pack, it is imperative to monitor the operation status and diagnose the state of health (SOH) for each battery cell. However, the diagnosis and analysis of each cell''s voltage imposes significant computational burden and reduces the real-time performance of diagnosis.
[PDF] A Broken Line Detection Circuit for Multi-cell Li-ion Battery
This paper presents a novel broken line detection circuit for multi-cell Li-ion Battery modules. The broken line detection technique detects test lines between the battery pack and any following
Online lithium-ion battery intelligent perception for
The results include the label, prediction area, and score which represents the confidence of a certain class of targets in the bounding box. (a) is perceptual short-circuit cell 1 in a 1P3S battery pack. (b) is perceptual short
Online multi-fault detection and diagnosis for battery packs in
Highlights • An online non-model multi-fault diagnostic method for battery packs is developed. • A non-redundancy measurement topology for fault discrimination is proposed. •
Multi-fault detection and diagnosis method for battery packs
Compared to the diagnosis fault of packs, individual cell fault diagnosis lacks a reference target, leading to difficulties in effectively detecting whether an abnormality exists. In this paper, a data-driven detection method based on the autoencoder strategy is proposed for early detection of battery faults without pack information.
A novel voltage protection method for multi-cell lithium-ion battery
A new voltage protection circuit structure and a three-cell lithium battery voltage sampling circuit are presented to improve the circuit performance of the chip and reduce the dynamic power
Periodic Segmentation Transformer -Based Internal Short Circuit
detection, the time-series signal is always selected as voltage. The connection diagram of the battery pack and ISC generator is shown in the left of Fig. 1. Cell n_i is the number of the battery in battery pack, V ocv is the open circuit voltage, R isc and R i are the ISC resistant and internal resistant, respectively. I isc is the ISCcurrent
Fault Diagnosis and Abnormality Detection of Lithium-ion Battery Packs
Fault Diagnosis and Abnormality Detection of Lithium-ion Battery Packs Based on Statistical Distribution Qiao Xue1, Guang Li2, Yuanjian Zhang3, Shiquan Shen1, Zheng Chen1, 2*, and Yonggang Liu4* 1Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming, 650500, China 2School of Engineering and Materials Science, Queen
The multi-variable stepwise algorithm for internal short circuit
This paper investigates the detection and identification of internal short circuits in batteries by proposing a multi-variable stepwise analysis (MSA) method. simulating the occurrence of an internal short circuit in a normal cell in the battery pack. 3. Internal short circuit detection for battery pack using equivalent parameter and
Gaussian process-based online health monitoring and
This article considers the design of Gaussian process (GP)-based health monitoring from battery field data, which are time series data consisting of noisy temperature, current, and voltage measurements
Multi-fault detection and diagnosis method for battery packs
Multi-fault detection and diagnosis method for battery packs based on statistical analysis. Micro short-circuit cell fault identification method for lithium-ion battery packs based on mutual information Modified relative entropy-based lithium-ion battery pack online short circuit detection for electric vehicle. IEEE Transactions on
Novel broken line detection circuit for multi‐cells Li‐ion
A novel broken line detection circuit for multi-cells Li-ion battery packs is proposed, designed and experimentally validated with an IC
Fault detection method for electric vehicle battery pack based on
Download Citation | On Nov 12, 2024, Minghu Wu and others published Fault detection method for electric vehicle battery pack based on improved kurtosis and isolation forest | Find, read and cite
6 FAQs about [Battery pack multi-cell detection circuit]
Is there a non-model multi-fault diagnostic method for battery packs?
An online non-model multi-fault diagnostic method for battery packs is developed. A non-redundancy measurement topology for fault discrimination is proposed. The correlation coefficient is improved to catch fault signatures. The robustness to measurement errors and inconsistencies is demonstrated.
Can a multi-fault diagnosis be used in LFP battery packs?
However, misdiagnosis and missed diagnosis happened occasionally. In this paper, a statistical analysis-based multi-fault diagnosis method is proposed to detect and localize short circuit faults, electrical connection faults and voltage sensor faults in LFP battery packs.
Can multiple faults be detected in lithium-ion battery packs?
The above diagnosis results are entirely consistent with the fault injections in Table 3, which indicates that the method proposed in this work can accomplish the detection, isolation, and localization of concurrent multiple faults in lithium-ion battery packs.
Is there a multi-fault diagnosis method for lithium-ion battery packs?
In response to the identified limitations of the existing methods, this study introduces a multi-fault diagnosis method for lithium-ion battery packs based on random convolutional kernel transformation (RCKT) and Gaussian process classifier (GPC).
Can a GPC detect concurrent multi-fault in lithium-ion battery packs?
Therefore, after extracting features from voltage measurements, a GPC is employed as the diagnosis model, to detect and isolate concurrent multi-fault in lithium-ion battery packs. This section first presents the framework of the GPC for binary classification, followed by the generalization to multi-class scenarios.
How many cells are connected in a battery pack?
Hundreds of cells in a battery pack are connected with welding or screwing. All connecting parts have their own reliability. The connection among cells is prone to poor contact in the complicated environment of large temperature difference and vibration.