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公开(公告)号：US20240162508A1
公开(公告)日：2024-05-16
申请号：US17987945
申请日：2022-11-16
发明人： Yonghua Li , Richard Dyche Anderson
CPC分类号： H01M10/4285 , H01M10/446 , H01M2010/4278 , H01M2220/20
摘要： A method for detecting a capacity of a battery, such as a traction battery of an electrified vehicle, includes varying a charge current provided to the battery and measuring a terminal voltage of the battery as the charge current is being varied. An estimator, that utilizes voltage feedback based on a model of the battery to provide state and parameter estimations of the battery, is driven with the terminal voltage to estimate a state-of-charge (SOC) of the battery. The capacity of the battery may be detected based in part on the SOC.
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公开(公告)号：US10814742B2
公开(公告)日：2020-10-27
申请号：US15834810
申请日：2017-12-07
IPC分类号： B60L58/16 , B60L3/12 , B60W10/08 , B60W20/15 , G01R31/3832 , G01R31/3842 , B60L53/22 , B60L58/22 , G01R31/36
摘要： Method and apparatus are disclosed for monitoring a vehicle power supply system having a primary and a secondary power source. An example vehicle includes a primary power source, a secondary power source comprising a low voltage battery, and a processor. The processor is configured for reducing an output of the primary power source, determining an operational characteristic of the low voltage battery while the output of the primary power source is reduced, and providing an alert based on the operational characteristic.
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公开(公告)号：US10214111B2
公开(公告)日：2019-02-26
申请号：US15237994
申请日：2016-08-16
摘要： An electrified vehicle high voltage battery pack has series-connected battery units or cells combining to provide the high voltage. To power a low voltage bus (e.g., for low voltage accessories or charging a low voltage battery) in a balanced manner, a plurality of DC/DC converters each has an input coupled to a respective battery unit and the converters have respective outputs coupled in parallel to the low voltage bus. A first loop controller receives an actual bus voltage. The first controller generates a target current in response to the bus voltage adapted to regulate the actual bus voltage to a target voltage less than the high voltage. A second controller distributes the target current into a plurality of allocated current commands for respective converters according to respective states of charge of the battery units connected to the converters.
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公开(公告)号：US09770997B2
公开(公告)日：2017-09-26
申请号：US13914857
申请日：2013-06-11
CPC分类号： B60L11/1866 , B60L11/1861 , B60L2240/545 , B60L2240/547 , B60L2240/549 , H02J7/0014 , H02J7/0021 , Y02T10/7011 , Y02T10/7044 , Y02T10/7055 , Y02T10/7061
摘要： A vehicle having a battery pack with cells arranged in at least groups of two cells in series is disclosed. A controller balances the cells based on a change in voltage across the cells being different than an expected change in voltage. The expected value is based on a current and a time associated with charging or discharging the cells. A controller is disclosed that commands charging and discharging of the battery cells based on a difference between a voltage across the group and the expected value for the group. A method for charging and discharging a battery pack is disclosed. The voltage across a group of cells is measured and compared to an expected value. An imbalance in a cell attribute is estimated according to a difference between the measured voltage and the expected voltage. The voltage across each battery cell is not required.
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5.发明申请公开(公告)号：US20150158395A1
公开(公告)日：2015-06-11
申请号：US14099056
申请日：2013-12-06
发明人： Yonghua Li , Richard Dyche Anderson
CPC分类号： B60L11/1864 , B60L11/1861 , B60L2240/547 , B60L2240/549 , B60L2260/44 , B60W10/26 , B60W2510/244 , B60W2710/248 , G01R31/3624 , G01R31/3651 , G01R31/3658 , G01R31/3662 , H01M10/482 , H01M10/486 , H01M2220/20 , Y02T10/7005 , Y02T10/7044 , Y02T10/7061
摘要： A hybrid or electric vehicle includes a traction battery to store and provide energy for the vehicle. The traction battery includes a number of battery cells. For effective operation of the traction battery, operating parameters, such as state of charge and battery power limits, may need to be known. The operating parameters may be a function of battery cell voltage and impedance parameters. A parameter estimation scheme may use measured cell voltages and a measured traction battery current as inputs. A current measurement bias may be modeled that incorporates measurement bias caused by asynchronous current and voltage measurements. The current measurement bias may be estimated for each cell and the value may differ between cells.
摘要翻译： 混合动力或电动车辆包括用于为车辆存储和提供能量的牵引电池。 牵引电池包括多个电池单元。 为了有效地操作牵引电池，可能需要知道操作参数，例如充电状态和电池功率限制。 操作参数可能是电池电池电压和阻抗参数的函数。 参数估计方案可以使用测量的电池电压和测量的牵引电池电流作为输入。 可以对电流测量偏差进行建模，其中包含由异步电流和电压测量引起的测量偏差。 可以为每个单元估计当前测量偏差，并且该单元之间的值可能不同。
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公开(公告)号：US20190176638A1
公开(公告)日：2019-06-13
申请号：US15834810
申请日：2017-12-07
摘要： Method and apparatus are disclosed for monitoring a vehicle power supply system having a primary and a secondary power source. An example vehicle includes a primary power source, a secondary power source comprising a low voltage battery, and a processor. The processor is configured for reducing an output of the primary power source, determining an operational characteristic of the low voltage battery while the output of the primary power source is reduced, and providing an alert based on the operational characteristic.
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公开(公告)号：US10277041B2
公开(公告)日：2019-04-30
申请号：US15224123
申请日：2016-07-29
申请人： Utah State University , FORD GLOBAL TECHNOLOGIES, LLC , ALLIANCE FOR SUSTAINABLE ENERGY, LLC , THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY
发明人： Regan A. Zane , Michael Evzelman , Daniel Costinett , Dragan Maksimovic , Richard Dyche Anderson , Kandler Smith , Michael Scott Trimboli , Gregory L. Plett
摘要： An apparatus includes a battery state module that determines a battery state of each of a plurality of battery cells forming a battery unit. A battery state includes a health of the battery cell. A battery state of a battery cell differs from a battery state of other battery cells of the battery unit. Each battery cell is connected to a shared bus through a bypass converter that provides power from the battery cell to the shared bus. A charge/discharge modification module determines, based on battery state, an amount to vary a charging characteristic for each battery cell compared to a reference charging characteristic. Each charging characteristic varies as a function of a reference state. A charge/discharge module adjusts charging/discharging of a battery cell of the battery unit based on the charging characteristic of the battery cell.
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公开(公告)号：US09970993B1
公开(公告)日：2018-05-15
申请号：US15434443
申请日：2017-02-16
IPC分类号： H01M4/00 , H01M4/14 , H02P27/00 , G01R31/36 , B60L11/18 , G01N29/22 , G01N29/24 , B60L11/14 , B60R16/02 , H01M10/48 , H01M2/10 , H01M10/42
CPC分类号： G01R31/3679 , B60L11/14 , B60L11/1861 , B60L11/1864 , B60L2210/10 , B60L2240/42 , B60L2240/545 , B60Y2400/112 , G01N29/2412 , G01N29/2481 , G01N2291/02863 , G01N2291/02881 , G01N2291/0423 , G01N2291/045 , G01N2291/2697 , G01R31/44 , H01M10/48 , H01M10/486 , H01M2220/20 , Y10S903/907
摘要： Systems and methods for sensing internal states of vehicle batteries are described. From this internal state information, various physical characteristics of the battery can be measured, calculated or inferred. A vehicle can include an electric motor, a battery to store electrical energy for the electric motor, and a sensor connected to the battery to sense a battery state, to receive an input signal, and to wirelessly transmit an output signal indicating the battery state. The sensor may be passive and built into the structure of the battery. The sensor can be a surface wave acoustic sensor with a magnetic field sensor, which can be a magnetoimpedance sensing device and a temperature sensor.
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公开(公告)号：US09187007B2
公开(公告)日：2015-11-17
申请号：US14274685
申请日：2014-05-10
发明人： Yonghua Li , Richard Dyche Anderson
CPC分类号： B60L11/1861 , B60L2240/545 , B60L2240/547 , B60L2240/549 , G01R31/362 , G01R31/3651 , H01M10/42 , Y02T10/7005 , Y02T10/7044 , Y02T10/705
摘要： An electric vehicle includes a controller configured to estimate battery capacity in accordance with a first state of charge estimation, a charge integration, and a second state of charge estimation. The first and second state of charge estimations are in accordance with time and temperature constraints and are such that the estimated battery capacity has limited uncertainty. The controller is further configured to generate an output based on the estimated battery capacity.
摘要翻译： 电动车辆包括：控制器，被配置为根据第一充电状态估计，电荷积分和第二充电状态估计来估计电池容量。 第一和第二充电状态估计符合时间和温度限制，并且使得估计的电池容量具有有限的不确定性。 控制器还被配置为基于估计的电池容量产生输出。
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公开(公告)号：US20140265554A1
公开(公告)日：2014-09-18
申请号：US13829148
申请日：2013-03-14
IPC分类号： B60L11/18
CPC分类号： B60L11/1861 , B60L3/0046 , B60L3/0069 , B60L3/0092 , B60L3/04 , B60L7/12 , B60L15/2009 , B60L15/2054 , B60L50/64 , B60L53/14 , B60L53/30 , B60L53/51 , B60L53/52 , B60L58/12 , B60L58/14 , B60L58/15 , B60L58/20 , B60L58/22 , B60L58/26 , B60L2210/30 , B60L2240/421 , B60L2240/423 , B60L2240/545 , B60L2240/547 , B60L2240/549 , B60L2250/16 , Y02T10/645 , Y02T10/7011 , Y02T10/7044 , Y02T10/7061 , Y02T10/7066 , Y02T10/7088 , Y02T10/7241 , Y02T10/7275 , Y02T90/121 , Y02T90/127 , Y02T90/14
摘要： A battery system for powering a vehicle is provided. The system may include a first lithium-ion battery pack having a first total energy capacity and a first power to energy ratio (P/E ratio) and a second lithium-ion battery pack connected in parallel with the first lithium-ion battery pack and having a second total energy capacity that is higher than the first total energy capacity and a second P/E ratio that is lower than the first P/E ratio. A method of controlling the battery system is also provided, and may include controlling an operation of a vehicle according to a total power capability of the first and second battery strings, wherein the total power capability is the sum of a first battery string power capability and a second battery string power capability at a same voltage.
摘要翻译： 提供了一种用于为车辆供电的电池系统。 该系统可以包括具有第一总能量容量和第一功率能量比（P / E比）的第一锂离子电池组和与第一锂离子电池组并联连接的第二锂离子电池组，以及 具有比第一总能量容量高的第二总能量容量和低于第一P / E比的第二P / E比。 还提供了一种控制电池系统的方法，并且可以包括根据第一和第二电池串的总功率能力来控制车辆的操作，其中总功率能力是第一电池串功率能力和 在相同电压下的第二电池串功率能力。
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