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    • 2. 发明授权
    • Speed detecting apparatus
    • 速度检测装置
    • US4839834A
    • 1989-06-13
    • US2202
    • 1987-01-12
    • Tsutomu OmaeToshihiko MatsudaYoujirou MiyaharaKenzo Kamiyama
    • Tsutomu OmaeToshihiko MatsudaYoujirou MiyaharaKenzo Kamiyama
    • G01P3/489G01P3/42G01P13/04
    • G01P13/045
    • In a speed detecting apparatus for detecting the rotational speed of a rotating body mechanically coupled thereto, an encoder generates one cycle of a sine-wave signal each time its angular position of rotation changes by a predetermined unit amount. A zero-crossing pulse is generated at each zero-crossing point of the sine-wave signal generated from the encoder, and the phase angle of the sine-wave signal is detected on the basis of the zero-crossing point of the sine-wave signal generated from the encoder. In a high speed range, the rotational speed is detected on the basis of the ratio between the number of zero-crossing pulses and the time interval between a first one and a last one of the plural zero-crossing pulses. On the other hand, in a low speed range, the rotational speed is detected on the basis of the combination of the number of the zero-crossing pulses appearing within a predetermined period of time and the phase angle of the sine-wave signal.
    • 在用于检测与其机械耦合的旋转体的旋转速度的速度检测装置中,编码器每当其旋转角位置改变预定单位量时,就产生正弦波信号的一个周期。 在从编码器产生的正弦波信号的每个过零点处产生过零脉冲,并且基于正弦波的过零点检测正弦波信号的相位角 从编码器产生的信号。 在高速范围内,基于过零脉冲数与多个过零脉冲中​​的第一个和最后一个之间的时间间隔之间的比率来检测转速。 另一方面,在低速范围内,根据出现在预定时间段内的过零脉冲数与正弦波信号的相位角的组合来检测转速。
    • 5. 发明授权
    • Load current detecting device for pulse width modulation inverter
    • 脉宽调制逆变器负载电流检测装置
    • US4772996A
    • 1988-09-20
    • US36862
    • 1987-04-09
    • Hiroyuki HaneiTakeshi HanadaKenji KuboMasahiko WatanabeTsutomu OmaeToshihiko Matsuda
    • Hiroyuki HaneiTakeshi HanadaKenji KuboMasahiko WatanabeTsutomu OmaeToshihiko Matsuda
    • H02M7/5387H02M7/537
    • H02M7/53873
    • A PWM inverter includes a plurality of arms connected in parallel with a d.c. power source. Each arm is constituted by an upper arm and a lower arm each having a switching element. A plurality of switching control signals are continuously and alternately applied to one and the other of the two switching elements constituting the same arm respectively. In the PWM inverter, shunt resistors are connected between a minus terminal of the d.c. power source and the lower arms respectively. The PWM inverter further comprises a waveform command generating circuit generating commands representative of current waveforms to be supplied to a load, a carrier wave generating circuit and sample-hold circuits. Each of the sample-hold circuits samples and holds a terminal voltage of the associated shunt resistor in synchronism with the period of the carrier wave generated from the carrier wave generating circuit and at specific timing in a conduction period of the associated switching element.
    • PWM逆变器包括与直流电路并联连接的多个臂。 能量源。 每个臂由具有开关元件的上臂和下臂构成。 多个开关控制信号分别连续交替地施加到构成相同臂的两个开关元件中的一个和另一个。 在PWM逆变器中,分流电阻连接在直流负载端子之间。 电源和下臂。 PWM逆变器还包括产生表示要提供给负载的电流波形的指令的波形指令产生电路,载波发生电路和采样保持电路。 每个采样保持电路与从载波产生电路产生的载波的周期和相关的开关元件的导通周期中的特定定时同步地采样并保持相关联的分流电阻器的端子电压。
    • 6. 发明授权
    • Failure detection method for electric vehicles and fail-safe control
method using this method
    • 电动车故障检测方法及故障安全控制方法
    • US5357181A
    • 1994-10-18
    • US133376
    • 1993-10-08
    • Nobuyoshi MutohRyoso MasakiTsutomu OmaeSanshiro ObaraShotaro Naito
    • Nobuyoshi MutohRyoso MasakiTsutomu OmaeSanshiro ObaraShotaro Naito
    • B60L3/00B60L3/08B60L9/18H02P27/06
    • B60L3/0038
    • An object of the present invention is to secure safe driving of electric vehicles by enabling torque control regardless of sensor disorder. In the present invention, the mode of current sensor disorder is detected by a sensor disorder detection means. If it is found as a result that only 1 out of 3 current sensors is failing, the current of the failing current sensor is estimated by 2 normal current sensors and the torque control of the motor is continued by the ordinary torque control system. If 2 or more current sensors are found to be failing, a torque control system based on an AC current reference operation means is formed to control the motor torque based on the AC current reference. If a sensor failure detection means determines that only 1 phase is failing in the speed sensor, the motor torque is controlled by using the remaining 1 phase to detect the rotating angular speed of the motor. If all speed sensors are failing but the current sensors are normal, the motor torque is controlled by estimating the motor torque from the 3 phase AC current. If both the current sensors and the speed sensors are found to be failing, the motor torque is controlled based on the estimated torque control and rotating angular speed to continue the driving that is needed to avoid dangerous situations.
    • 本发明的目的是通过实现扭矩控制来确保电动车辆的安全驾驶,而不管传感器无序。 在本发明中,由传感器无序检测装置检测电流传感器障碍的模式。 如果发现3个电流传感器中只有1个发生故障,则故障电流传感器的电流由2个正常电流传感器估计,电机的转矩控制由普通转矩控制系统继续。 如果发现2个以上的电流传感器发生故障,则形成基于交流电流基准运算装置的转矩控制系统,以基于交流电流基准来控制电动机转矩。 如果传感器故障检测装置确定速度传感器中只有1相故障,则通过使用剩余的1相来检测电动机的旋转角速度来控制电动机转矩。 如果所有速度传感器故障,但电流传感器正常,则通过从三相交流电流估计电机转矩来控制电机转矩。 如果发现电流传感器和速度传感器都有故障,则基于估计的转矩控制和旋转角速度来控制电动机转矩,以继续驾驶以避免危险情况。
    • 7. 发明授权
    • Electromobile control device
    • 电动控制装置
    • US4366420A
    • 1982-12-28
    • US109846
    • 1980-01-07
    • Tsutomu OmaeKatsuji MarumotoShotaro Naito
    • Tsutomu OmaeKatsuji MarumotoShotaro Naito
    • B60L15/28H02P7/298H02P5/16
    • H02P7/298Y02T10/7258Y10S388/904Y10S388/92Y10S388/93
    • A control device for an electromobile provided with a shunt motor includes a pattern generating means for storing, as patterns, armature and field currents capable of generating an output torque with a minimum loss in the driving system of the electromobile to deliver an armature current command and a field current command for generating a specified output torque on the basis of the patterns, an armature control circuit for supplying the shunt motor with an armature current corresponding to the armature current command, and a field control circuit for supplying the shunt motor with a field current corresponding to the field current command. Thus, the torque control of the shunt motor is conducted on the basis of the patterns, and a computer control is applicable to the above control device.
    • 一种设置有并联电动机的电动机的控制装置包括:图案产生装置,用于存储能够在电动机的驱动系统中产生具有最小损耗的输出转矩的电枢和励磁电流的图案,以输送电枢电流指令; 用于根据图案产生指定的输出转矩的励磁电流指令,用于向分流电动机提供与电枢电流指令相对应的电枢电流的电枢控制电路,以及用于向分流电动机提供场的场控制电路 电流对应于励磁电流指令。 因此,分流马达的转矩控制基于图案进行,并且计算机控制可应用于上述控制装置。
    • 8. 发明授权
    • Chopper controller for a D.C. motor
    • 直流电动机的斩波控制器
    • US4580083A
    • 1986-04-01
    • US652169
    • 1984-09-19
    • Tsutomu OmaeKatsuji MarumotoShotaro Naito
    • Tsutomu OmaeKatsuji MarumotoShotaro Naito
    • H02P7/298H02P23/00H02P5/16
    • H02P23/0077H02P7/2985Y10S388/902Y10S388/909Y10S388/912Y10S388/934
    • A chopper controller for a D.C. motor controls currents flowing in an armature winding and a field winding of the D.C. motor by controlling an armature chopper and a field chopper in accordance with a command from a command generator such as an accelerator pedal. The armature chopper and the field chopper are controlled by chopper control signals from an armature chopper control circuit and a field chopper control circuit, respectively. Those chopper control signals are in a predetermined phase relationship and an interruption request signal is issued in phase-synchronism with one of the chopper control signals. In response to the interruption request signal, computing means computes an armature chopper duty factor and a field chopper duty factor in accordance with the command from the command generator and supplies them to the chopper control circuits.
    • 用于直流电动机的斩波控制器通过根据来自诸如加速器踏板的命令发生器的命令控制电枢斩波器和场斩波器来控制在直流电动机的电枢绕组和励磁绕组中流动的电流。 电枢斩波器和励磁斩波器分别由来自电枢斩波器控制电路和励磁斩波器控制电路的斩波控制信号控制。 这些斩波控制信号处于预定的相位关系,并且与斩波控制信号之一相位同步地发出中断请求信号。 响应于中断请求信号,计算装置根据来自命令发生器的命令计算电枢斩波器占空因数和场斩波器占空比,并将其提供给斩波控制电路。
    • 10. 发明授权
    • DC Chopper device
    • 直流斩波器
    • US4207478A
    • 1980-06-10
    • US903610
    • 1978-05-08
    • Katsuji MarumotoSchigeru KuriyamaTsutomu Omae
    • Katsuji MarumotoSchigeru KuriyamaTsutomu Omae
    • H02M3/155H02P7/29H03K17/12H03K17/60H03K17/56
    • H02P7/29H03K17/12
    • A DC chopper device comprising a DC power source, a plurality of power transistors connected in series with a controlled unit driven by the DC power source and connected in parallel with each other to make chopping operation, a chopper control unit controlling the chopping operation of the power transistors, and a base drive circuit connected between the chopper control unit and each of the power transistors. Each base drive circuit includes impedance means for discharging the charge stored in the base region of the associated power transistor when the power transistor is turned off from its conducting state, and current flow blocking means for blocking current flow through the impedance means in the conducting state of the power transistor. The impedance values of the impedance means in the base drive circuits are selected so that all the power transistors can be substantially simultaneously turned on.
    • 一种直流斩波装置,包括:直流电源;多个功率晶体管,与由所述直流电源驱动的并联连接的受控单元串联连接,以进行斩波动作;斩波控制单元,控制所述切断操作; 功率晶体管和连接在斩波控制单元和每个功率晶体管之间的基极驱动电路。 每个基极驱动电路包括阻抗装置,用于当功率晶体管从其导通状态断开时,对存储在相关联的功率晶体管的基极区域中的电荷进行放电;以及电流流动阻塞装置,用于阻断在导通状态下通过阻抗装置的电流 的功率晶体管。 选择基极驱动电路中的阻抗装置的阻抗值,使得所有功率晶体管可以基本上同时导通。