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公开(公告)号：US10131245B2
公开(公告)日：2018-11-20
申请号：US15238003
申请日：2016-08-16
摘要： An electrified vehicle has a battery pack comprising series-connected battery units providing a main voltage. To supply a lower voltage bus equally from all battery units, a plurality of DC/DC converters are powered by respective units and have their outputs in parallel. A central module has an outer loop controller generating a target current to regulate the bus voltage to a predetermined voltage and has an allocator distributing the target current into a plurality of allocated current commands according to respective states of charge of the battery units. A plurality of local controllers each adjusts a current of a respective DC/DC converter. Each local controller receives a respective allocated current command as a respective feedforward control variable. Each local controller uses an error between the bus voltage and the predetermined voltage to be integrated as a respective feedback control variable only when the error is above a threshold.
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公开(公告)号：US09368841B2
公开(公告)日：2016-06-14
申请号：US14014992
申请日：2013-08-30
IPC分类号： H01M10/48 , H01M10/633 , H01M10/63
CPC分类号： H01M10/48 , H01M10/486 , H01M10/63 , H01M10/633 , H01M2220/20
摘要： A vehicle is disclosed comprising a battery and a controller. Projected battery impedance parameters are calculated based on predetermined parameter values and historical parameter values generated by a battery parameter estimation model. The values may be weighted according to time data associated with the historical impedance parameter values and a temperature of the battery. Recent historical impedance parameter values may affect the projected battery impedance parameter values more than older historical impedance parameter values. The model is initialized with projected parameter values at vehicle initialization. Battery power capability is calculated using the projected parameter values for a period of time following vehicle initialization. After the period of time following vehicle initialization, battery power capability is calculated using impedance parameters generated by the model. The period of time following vehicle initialization may end when the model output has converged to a stable solution.
摘要翻译： 公开了一种包括电池和控制器的车辆。 基于由电池参数估计模型生成的预定参数值和历史参数值来计算投影电池阻抗参数。 这些值可以根据与历史阻抗参数值和电池温度相关联的时间数据进行加权。 最近的历史阻抗参数值可能会比旧的历史阻抗参数值影响预计的电池阻抗参数值。 该模型在车辆初始化时用投影参数值进行初始化。 使用车辆初始化之后的一段时间内的投影参数值来计算电池功率能力。 在车辆初始化后的一段时间内，使用模型生成的阻抗参数来计算电池功率能力。 车辆初始化后的时间段可能在模型输出收敛到稳定的解决方案时结束。
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公开(公告)号：US20150064510A1
公开(公告)日：2015-03-05
申请号：US14014992
申请日：2013-08-30
IPC分类号： H01M10/48
CPC分类号： H01M10/48 , H01M10/486 , H01M10/63 , H01M10/633 , H01M2220/20
摘要： A vehicle is disclosed comprising a battery and a controller. Projected battery impedance parameters are calculated based on predetermined parameter values and historical parameter values generated by a battery parameter estimation model. The values may be weighted according to time data associated with the historical impedance parameter values and a temperature of the battery. Recent historical impedance parameter values may affect the projected battery impedance parameter values more than older historical impedance parameter values. The model is initialized with projected parameter values at vehicle initialization. Battery power capability is calculated using the projected parameter values for a period of time following vehicle initialization. After the period of time following vehicle initialization, battery power capability is calculated using impedance parameters generated by the model. The period of time following vehicle initialization may end when the model output has converged to a stable solution.
摘要翻译： 公开了一种包括电池和控制器的车辆。 基于由电池参数估计模型生成的预定参数值和历史参数值来计算投影电池阻抗参数。 这些值可以根据与历史阻抗参数值和电池温度相关联的时间数据进行加权。 最近的历史阻抗参数值可能会比旧的历史阻抗参数值影响预计的电池阻抗参数值。 该模型在车辆初始化时用投影参数值进行初始化。 使用车辆初始化之后的一段时间内的投影参数值来计算电池功率能力。 在车辆初始化后的一段时间内，使用模型生成的阻抗参数来计算电池功率能力。 车辆初始化后的时间段可能在模型输出收敛到稳定的解决方案时结束。
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公开(公告)号：US20140249708A1
公开(公告)日：2014-09-04
申请号：US14274685
申请日：2014-05-10
发明人： Yonghua Li , Richard Dyche Anderson
IPC分类号： B60L11/18
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：US20210237614A1
公开(公告)日：2021-08-05
申请号：US16781346
申请日：2020-02-04
摘要： A vehicle includes a battery, an electric machine, and a controller. The battery has a state of charge. The electric machine is configured to draw electrical power from the battery to propel the vehicle in response to an acceleration request and to deliver electrical power to the battery to recharge the battery. The controller is programmed to adjust an estimation of battery state of charge based on a feed forward control that includes a coulomb counting algorithm, a first feedback control that includes a first battery model, and a second feedback control that includes a second battery model. The controller is further programmed to control the electrical power flow between the battery and the electric machine based on the estimation of the state of charge of the battery.
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公开(公告)号：US10298026B2
公开(公告)日：2019-05-21
申请号：US15224275
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： Michael Scott Trimboli , Gregory L. Plett , Regan A. Zane , Kandler Smith , Dragan Maksimovic , Michael Evzelman , Daniel Costinett , Richard Dyche Anderson
摘要： An apparatus for model predictive control (“MPC”) is disclosed. A method and system also perform the functions of the apparatus. The apparatus includes a measurement module that receives battery status information from one or more sensors receiving information from a battery cell, and a Kalman filter module that uses a Kalman filter and the battery status information to provide a state estimate vector. The apparatus includes a battery model module that inputs the state estimate vector and battery status information into a battery model and calculates a battery model output, the battery model representing the battery cell, and an MPC optimization module that inputs one or more battery model outputs and an error signal in a model predictive control algorithm to calculate an optimal response. The optimal response includes a modification of the error signal.
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公开(公告)号：US10124696B2
公开(公告)日：2018-11-13
申请号：US15378732
申请日：2016-12-14
发明人： Yonghua Li , Richard Dyche Anderson
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.
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公开(公告)号：US10107847B2
公开(公告)日：2018-10-23
申请号：US14224809
申请日：2014-03-25
发明人： Xiaoguang Chang , Chuan He , Xu Wang , Richard Dyche Anderson
摘要： A diagnostic method for contact resistance failure includes estimating electrical contact surface resistance of at least one contactor, determining a faulted status of the at least one contactor and indicating the faulted status of the at least one contactor if the at least one contactor is in the faulted status.
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29.发明授权Reduced central processing unit load and memory usage battery state of charge calculation 有权减少中央处理单元负载和内存使用电池的充电状态计算公开(公告)号：US08972091B2
公开(公告)日：2015-03-03
申请号：US13794975
申请日：2013-03-12
发明人： Yonghua Li , Richard Dyche Anderson , Xu Wang
IPC分类号： H02J7/00
CPC分类号： B60L11/1861 , B60L11/1866 , B60L2240/545 , B60L2240/547 , H01M2010/4271 , H01M2220/30 , H02J7/0021 , H02J7/0022 , H02J7/1423 , H02J7/1492 , Y02T10/7005 , Y02T10/7044 , Y02T10/7055 , Y02T10/7061 , Y02T10/92 , Y10S903/903
摘要： A vehicle having a battery pack with cells grouped into subsets and at least one controller programmed to charge and discharge the battery pack is disclosed. A control output is generated based on a pack state of charge derived from each cell's initial state of charge at vehicle activation and an electric charge accumulated or spent by less than all of the cells of each of the subsets since vehicle activation. A method of estimating battery pack state of charge is disclosed in which a pack state of charge is calculated by identifying subsets of cells having similar properties and calculating an electric charge accumulated or spent for fewer than all of the cells of each subset. A cell state of charge is calculated for all cells based on an average electric charge accumulated or spent. The pack state of charge is based on all the cell states of charge.
摘要翻译： 公开了一种车辆，其具有将电池分组成子集的电池组和至少一个被编程为对电池组充电和放电的控制器。 基于从车辆激活时的每个电池的初始充电状态导出的电池组状态产生控制输出，以及由于车辆启动而累积或消耗的每个子集的小于所有子单元的电荷。 公开了一种估计电池组电荷状态的方法，其中通过识别具有相似性质的单元的子集来计算电池组的电荷状态，并且计算每个子集的少于所有单元的累积或耗散的电荷。 基于累积或消耗的平均电荷计算所有单元的电池充电状态。 电池的充电状态是基于充电的所有电池状态。
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30.发明申请Detection of Imbalance Across Multiple Battery Cells Measured by the Same Voltage Sensor 有权通过相同电压传感器测量的多个电池单元的不平衡检测公开(公告)号：US20140361743A1
公开(公告)日：2014-12-11
申请号：US13914857
申请日：2013-06-11
IPC分类号： B60L11/18
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.
摘要翻译： 公开了一种车辆，其具有串联设置在至少两组两个电池中的电池的电池组。 控制器基于电池两端的电压变化不同于预期的电压变化来平衡电池。 期望值基于与充电或放电单元相关联的电流和时间。 公开了一种控制器，其基于组上的电压与组的期望值之间的差来指令电池单元的充电和放电。 公开了一种充电和放电电池组的方法。 测量一组细胞上的电压并将其与预期值进行比较。 根据测量电压和预期电压之间的差异来估计细胞属性的不平衡。 不需要每个电池单元上的电压。
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