公开(公告)号：US06640623B2

公开(公告)日：2003-11-04

申请号：US09976163

申请日：2001-10-15

申请人： Eiichi Ono ,  Takaji Umeno ,  Masaru Sugai ,  Akira Tanaka ,  Yoshiyuki Yasui ,  Mamoru Sawada

发明人： Eiichi Ono ,  Takaji Umeno ,  Masaru Sugai ,  Akira Tanaka ,  Yoshiyuki Yasui ,  Mamoru Sawada

IPC分类号： E01C2300

CPC分类号： G01N19/02 ,  B60T8/172 ,  B60T8/173 ,  B60T2210/12

摘要： In order to estimate a braking force gradient in a low slip region including a steady travelling region, there is provided a device comprising a wheel speed sensor for detecting a wheel speed in a predetermined sampling period and outputting time series data of the wheel speed as a wheel speed signal, a break point frequency estimating section for estimating a break point frequency in a gain diagram that represents a frequency response of a first order lag model that approximates a transmission characteristics from road surface disturbances to wheel speed, and a braking force gradient estimating section for estimating a braking force gradient with respect to the estimated break point frequency on the basis of the map showing a relationship between braking force gradient and break point frequency stored in advance.

公开(公告)号：US06447076B1

公开(公告)日：2002-09-10

申请号：US09407894

申请日：1999-09-29

申请人： Shoji Ito ,  Eiichi Ono ,  Masaru Sugai ,  Takaji Umeno ,  Katsuhiro Asano ,  Hiroyuki Yamaguchi ,  Satoru Onozawa

发明人： Shoji Ito ,  Eiichi Ono ,  Masaru Sugai ,  Takaji Umeno ,  Katsuhiro Asano ,  Hiroyuki Yamaguchi ,  Satoru Onozawa

IPC分类号： B60T860

CPC分类号： B60T8/172

摘要： A wheel velocity signal for each wheel detected by a wheel velocity sensor is input to a bandpass filter. Signals from frequency bands unrelated to the unsprung resonance are then removed from the wheel velocity signal and only signals from frequency bands related to the unsprung resonance are output. A road surface &mgr; gradient estimation device uses an online identification method to identify an damping ratio of a second order resonance model similar to a suspension—tire resonance model from the signal output from the bandpass filter. The road surface &mgr; gradient is then estimated from the identified damping ratio. The damping ratio of the second order resonance model corresponds to the road surface &mgr; gradient in the following manner: when the damping ratio is identified as being small, the road surface &mgr; gradient is estimated as being large; and when the road surface &mgr; gradient is identified as being large, the damping ratio is estimated as being small.

摘要翻译： 由车轮速度传感器检测到的每个车轮的车轮速度信号被输入到带通滤波器。 然后从不同于簧下共振的频带发出的信号从车轮速度信号中除去，并且仅输出与非簧下共振相关的频带的信号。 路面mu梯度估计装置使用在线识别方法从与带通滤波器输出的信号相似的悬挂轮胎共振模型中识别类似于二次谐振模型的阻尼比。 然后根据所识别的阻尼比估计路面μm梯度。 二次谐振模型的阻尼比以下列方式对应于路面μ0的梯度：当阻尼比被识别为小时，路面μ0的梯度被估计为较大; 并且当路面μm梯度被识别为大时，阻尼比被估计为小。

公开(公告)号：US5982279A

公开(公告)日：1999-11-09

申请号：US939048

申请日：1997-09-26

申请人： Motonori Tominaga ,  Yuuichi Inoue ,  Kenji Tomiita ,  Shinjiro Fukada ,  Yoshihiro Nishikawa ,  Takaji Umeno ,  Hideki Ohashi

发明人： Motonori Tominaga ,  Yuuichi Inoue ,  Kenji Tomiita ,  Shinjiro Fukada ,  Yoshihiro Nishikawa ,  Takaji Umeno ,  Hideki Ohashi

IPC分类号： B60C23/06 ,  B60C23/00

CPC分类号： B60C23/062 ,  B60C23/061

摘要： To accurately detect a resonance frequency of tire even in high speed range by which tire air pressure state of each wheel is known, a calculation processing unit to which detection signals of wheel speed and resonance frequencies of tire are inputted calculates a timewise change amount of a wheel speed deviation that is a difference between wheel speed ratios of front and rear wheels. Then, it makes corrections to remove the influence of timewise change amounts of resonance frequencies of front wheels from timewise change amounts of wheel speed deviations based on a relationship between the resonance frequency and the wheel speed deviation when air pressure of the tire is changed. The unit then converts the corrected timewise change amount of the rotational state into the timewise change amount of the resonance frequencies of the rear wheels based on the above-described relationship and the resonance frequencies of the rear wheels and the timewise change amounts of the resonance frequencies of the rear wheels which have been accurately detected before the vehicle speed exceeds an upper limit value.

摘要翻译： 为了准确地检测轮胎的共振频率，即使在已知轮胎气压状态的高速范围内，输入轮胎速度检测信号和轮胎的共振频率的计算处理单元，也可以计算出轮胎的时间变化量 车轮速度偏差是前轮和后轮的车轮速比之差。 然后，根据轮胎的气压变化时的谐振频率和车轮偏差之间的关系，根据轮速偏差的时间变化量，进行修正，以消除前轮的谐振频率的时间变化量的影响。 基于上述关系和后轮的共振频率和谐振频率的时间变化量，该单元然后将校正的旋转状态的时间变化量转换成后轮的谐振频率的时间变化量 在车速超过上限值之前已经被准确地检测到的后轮。

公开(公告)号：US20140286055A1

公开(公告)日：2014-09-25

申请号：US14218361

申请日：2014-03-18

申请人： Kenichi Takagi ,  Masanori Ishigaki ,  Takaji Umeno ,  Takahiro Hirano ,  Jun Muto ,  Yasuharu Terada ,  Kenichiro Nagashita

发明人： Kenichi Takagi ,  Masanori Ishigaki ,  Takaji Umeno ,  Takahiro Hirano ,  Jun Muto ,  Yasuharu Terada ,  Kenichiro Nagashita

IPC分类号： H02M3/335

CPC分类号： H02M3/3353 ,  H02M1/38 ,  H02M3/33584 ,  H02M2001/0016

摘要： An electric power conversion system includes: a primary electric power conversion circuit including a primary coil connected to a connection point between a plurality of transistors; a secondary electric power conversion circuit configured similarly to the primary electric power conversion circuit and including a secondary coil corresponding to the primary coil; and a control circuit controlling transfer of electric power between the primary and secondary electric power conversion circuits. The control circuit executes feedforward control for setting one of an on/off ratio of a terminal voltage signal of the primary coil and an on/off ratio of a terminal voltage signal of the secondary coil, in response to at least one of fluctuations in voltage ratio between both waveforms and fluctuations in phase symmetry between both waveforms, when the terminal voltage waveform of the primary coil and the terminal voltage waveform of the secondary coil are different from each other.

摘要翻译： 一种电力转换系统，包括：主电力转换电路，包括与多个晶体管之间的连接点连接的初级线圈; 次级电力转换电路，其被配置为与初级电力转换电路类似，并且包括对应于初级线圈的次级线圈; 以及控制电路，其控制所述一次电力转换电路和所述二次电力转换电路之间的电力传递。 控制电路执行前馈控制，以响应于至少一个电压波动来设置初级线圈的端子电压信号的开/关比和次级线圈的端子电压信号的开/关比之一 当初级线圈的端子电压波形和次级线圈的端子电压波形彼此不同时，两个波形之间的两个波形之间的相位对称波动的比率。

公开(公告)号：US20140265605A1

公开(公告)日：2014-09-18

申请号：US14354065

申请日：2012-10-02

申请人： Masanori Ishigaki ,  Shuji Tomura ,  Takaji Umeno ,  Masaki Okamura ,  Daigo Nobe

发明人： Masanori Ishigaki ,  Shuji Tomura ,  Takaji Umeno ,  Masaki Okamura ,  Daigo Nobe

IPC分类号： H02M1/08 ,  H02M3/155

CPC分类号： H02M1/08 ,  B60L11/1855 ,  B60L11/1861 ,  B60L2220/14 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  H02J1/102 ,  H02J7/0024 ,  H02M1/088 ,  H02M3/155 ,  H02M3/158 ,  H02M2001/0003 ,  H02M2001/0029 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7055 ,  Y10T307/696

摘要： The power converter includes a first operation mode in which each of switching elements is controlled on or off independently so as to perform a power conversion between a load and both a first DC power source and a second DC power source and a second operation mode in which every two of the switching elements are controlled on or off concurrently so as to perform the power conversion between the load and the first DC power source or the second DC power source. A switching speed at which when each of the switching elements is turned on or turned off is controlled in accordance with the operation mode. Specifically, the switching speed in the second operation mode is higher than the switching speed in the first operation mode.

摘要翻译： 功率转换器包括第一操作模式，其中每个开关元件被独立地控制为开或关，以便在负载与第一DC电源和第二DC电源两者之间执行功率转换，以及第二操作模式，其中 每两个开关元件同时被控制开或关，以便执行负载和第一DC电源或第二DC电源之间的电力转换。 根据操作模式来控制开关元件接通或断开时的切换速度。 具体而言，第二动作模式的切换速度高于第一动作模式时的切换速度。

公开(公告)号：US08310181B2

公开(公告)日：2012-11-13

申请号：US12820303

申请日：2010-06-22

申请人： Makoto Taniguchi ,  Kazunari Moriya ,  Takaji Umeno ,  Kosuke Aiki

发明人： Makoto Taniguchi ,  Kazunari Moriya ,  Takaji Umeno ,  Kosuke Aiki

IPC分类号： H02P6/10

CPC分类号： H02P23/08 ,  H02P23/0004 ,  H02P23/26

摘要： According to input parameters, a controller carries out: generation of a voltage command value for each of d- and q-axes; conversion of the voltage command value for each of the d- and q-axes into a voltage command value for each of the multiphase windings; and control of a multiphase inverter based on the voltage command value for each of the multiphase windings. The controller adds, to the voltage command value for the q-axis, a first compensation voltage value for compensating torque ripples to thereby output a compensated voltage command value for the q-axis. The first compensation voltage value contains m-th harmonic components in the AC motor and varies depending on the rotational angle of the rotor, the m corresponding to the number of phase of the multiphase windings. The controller uses, as the voltage command value for the q-axis, the compensated voltage command value for the q-axis.

摘要翻译： 根据输入参数，控制器执行：产生d轴和q轴各自的电压指令值; 将各个d轴和q轴的电压指令值转换成每个多相绕组的电压指令值; 以及基于每个多相绕组的电压指令值来控制多相逆变器。 控制器对q轴的电压指令值加上用于补偿转矩波动的第一补偿电压值，从而输出q轴的补偿电压指令值。 第一补偿电压值包含交流电动机中的m次谐波分量，并根据转子的转角而变化，m对应于多相绕组的相数。 控制器使用q轴的补偿电压指令值作为q轴的电压指令值。

公开(公告)号：US20110161025A1

公开(公告)日：2011-06-30

申请号：US13061008

申请日：2009-08-28

申请人： Shuji Tomura ,  Takaji Umeno ,  Yasushi Amano ,  Yuji Nishi ,  Takeshi Takemoto ,  Nobuyasu Haga ,  Tetsuya Fuchimoto

发明人： Shuji Tomura ,  Takaji Umeno ,  Yasushi Amano ,  Yuji Nishi ,  Takeshi Takemoto ,  Nobuyasu Haga ,  Tetsuya Fuchimoto

IPC分类号： G01R31/36

CPC分类号： G06F19/00 ,  G01R31/3651 ,  G01R31/3662 ,  H01M10/48 ,  H01M10/486

摘要： A battery state estimating unit estimates an internal state of a secondary battery in accordance with a battery model equation in every arithmetic cycle, and estimates a charging rate and a battery current based on a result of the estimation. A parameter estimating unit obtains a battery current measured by a sensor as well as the charging rate and the battery current estimated by the battery state estimating unit. The parameter estimating unit estimates a capacity deterioration parameter such that a rate of change in difference (estimation error) between a summed value of an actual current and a summed value of an estimated current with respect to the charging rate is minimized. A result obtained by estimating the capacity deterioration parameter is reflected in the battery model by the battery state estimating unit.

摘要翻译： 电池状态估计单元根据每个算术循环中的电池模型等式来估计二次电池的内部状态，并且基于估计结果来估计充电率和电池电流。 参数估计单元获得由传感器测量的电池电流以及由电池状态估计单元估计的充电率和电池电流。 参数估计单元估计容量劣化参数，使得实际电流的求和值与估计电流的相加值相对于充电率之间的差值（估计误差）的变化率最小化。 通过估计容量劣化参数获得的结果由电池状态估计单元反映在电池模型中。

公开(公告)号：US20100237694A1

公开(公告)日：2010-09-23

申请号：US12659526

申请日：2010-03-11

申请人： Hiroo Fuma ,  Takaji Umeno ,  Kota Manabe

发明人： Hiroo Fuma ,  Takaji Umeno ,  Kota Manabe

IPC分类号： B60L1/00

CPC分类号： H01M10/46 ,  B60L1/006 ,  B60L11/123 ,  B60L11/1803 ,  B60L11/1811 ,  B60L11/1812 ,  B60L11/1814 ,  B60L11/1816 ,  B60L11/1818 ,  B60L11/1842 ,  B60L15/007 ,  B60L2220/54 ,  H02M1/10 ,  H02M3/1584 ,  Y02E60/721 ,  Y02T10/6217 ,  Y02T10/641 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7077 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y04S10/126

摘要： An object is to miniaturize device size in a vehicle mounted converter. The vehicle mounted converter includes a plurality of inductors, a switching unit for switching current path, an external power acquisition unit for acquiring alternating current power from a power generation source provided separately from the mounted vehicle, and a switching means for switching a circuit connection state to a connection state of either a boost connection state for connecting one end of the inductors to a path to a battery for vehicle drive power supply and connecting the switching unit to the other end of the inductors, or a charging connection state for connecting one end of one of the plurality of inductors to the path to the battery, disconnecting one end of the remaining inductors from the path to the battery and connecting to the external power acquisition unit, and connecting the other end of the inductors to the switching unit.

摘要翻译： 目的是在车载转换器中使设备尺寸小型化。 车载转换器包括多个电感器，用于切换电流通路的开关单元，用于从与安装的车辆分开设置的发电源获取交流电力的外部电力获取单元，以及用于切换电路连接状态的开关装置 将用于将电感器的一端连接到用于车辆驱动电源的电池的路径的升压连接状态的连接状态，以及将开关单元连接到电感器的另一端，或者连接一端的充电连接状态 将多个电感器中的一个电感器连接到电池的路径，将剩余电感器的一端从与电池的路径断开并连接到外部电力获取单元，并将电感器的另一端连接到开关单元。

公开(公告)号：US20100191398A1

公开(公告)日：2010-07-29

申请号：US12656184

申请日：2010-01-20

申请人： Yasuki Hirota ,  Shuji Tomura ,  Takaji Umeno ,  Takashi Shimazu

发明人： Yasuki Hirota ,  Shuji Tomura ,  Takaji Umeno ,  Takashi Shimazu

IPC分类号： G06F19/00 ,  H02J7/00

CPC分类号： B60L11/1851 ,  B60L11/187 ,  B60L2260/56 ,  B60L2270/44 ,  B60W10/08 ,  B60W30/18127 ,  B60W2510/244 ,  B60W2510/246 ,  H01M10/486 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H01M10/6571 ,  H01M10/659 ,  H01M10/6595 ,  H01M10/66 ,  Y02T10/7005 ,  Y02T10/705

摘要： A secondary battery system comprises a secondary battery which receives regenerative electric power from a motor, a heat storage unit (heat storage device) which converts a part of electric power stored in the secondary battery or the regenerative electric power from the motor into heat and stores the heat, and which supplies the stored heat to the secondary battery when a temperature of the secondary battery is less than a low-temperature-side threshold value which is set in advance when the electric power is extracted from the secondary battery, and an electric power distribution controller (ECU) which distributes the regenerative electric power from the motor to the secondary battery and the heat storage unit (heat storage device) when the temperature of the secondary battery is less than the low-temperature-side threshold value when the secondary battery receives the regenerative electric power from the motor.

摘要翻译： 二次电池系统包括从电动机接收再生电力的二次电池，将存储在二次电池中的一部分电力或来自电动机的再生电力转换成热量并存储的蓄热单元（蓄热装置） 并且当二次电池的温度低于当从二次电池中提取电力时预先设定的低温侧阈值时，向二次电池供给所存储的热量，并且电力 配电控制器（ECU），其在二次电池的温度低于低温侧阈值时将电动机的再生电力分配给二次电池和蓄热单元（蓄热装置） 电池从电机接收再生电力。

公开(公告)号：US06584427B2

公开(公告)日：2003-06-24

申请号：US09993631

申请日：2001-11-27

申请人： Kazuhiro Kamiya ,  Yukio Mori ,  Takaji Umeno

发明人： Kazuhiro Kamiya ,  Yukio Mori ,  Takaji Umeno

IPC分类号： B60C2300

CPC分类号： B60C23/062 ,  B60C23/061

摘要： The present invention provides a method and apparatus for estimating a state of tire air pressure with high accuracy in a range of vehicle speeds from a low travel speed to a high travel speed. A wheel speed of each of a right-hand front wheel and a right-hand rear wheel is detected based on wheel speed signals outputted from vehicle speed sensors, and characteristic amounts (power) of frequency characteristics of the wheel speeds are calculated. A value of difference which represents a degree of difference between the obtained characteristic amounts of the right-hand front wheel and the right-hand rear wheel is calculated. Based on the value of difference, the state of air pressure of a tire is determined. As a result, it can be determined if the air pressure of one of tires on the right-hand front wheel and the right-hand rear wheel has been reduced.