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公开(公告)号：US5690580A
公开(公告)日：1997-11-25
申请号：US634855
申请日：1996-04-19
申请人： Shoji Tokushima , Kiyoshi Kimura , Hisahiro Ito , Tomoyuki Itoh , Kiyotaka Hayashi , Naofumi Hoshi
发明人： Shoji Tokushima , Kiyoshi Kimura , Hisahiro Ito , Tomoyuki Itoh , Kiyotaka Hayashi , Naofumi Hoshi
CPC分类号： B60L3/04 , B60K23/00 , B60L15/025 , B60L3/0061 , B60L3/0092 , B60K1/00 , B60K17/04 , Y02T10/643 , Y02T10/7258 , Y10T477/32 , Y10T477/325 , Y10T477/343
摘要： A neutral apparatus for use on an electric vehicle is disclosed. The neutral apparatus comprises a control state detector and a neutral mechanism control circuit. The control state detector detects whether or not the motor control unit is in a predetermined control state. The neutral mechanism control unit can instruct the neutral mechanism to interrupt the power train according to the output signal from the control state detector. If the motor control unit is not in the predetermined control state, this is detected by the control state detector. In response to the output signal from the control state detector, the neutral mechanism control circuit causes the neutral mechanism to interrupt the power train. Thus, power flow from the motor to the drive wheels is interrupted. The control state detector is comprised of a voltage comparator circuit for comparing the output voltage from the motor driver circuit with a reference voltage and produces an output signal. As a result, it becomes possible to monitor the control state of the vehicle during movement thereof by means of an arrangement simple in construction.
摘要翻译： 公开了一种用于电动车辆的中立装置。 中性装置包括控制状态检测器和中性机构控制电路。 控制状态检测器检测电动机控制单元是否处于预定的控制状态。 中立机构控制单元可以指示中立机构根据来自控制状态检测器的输出信号来中断动力传动系。 如果电机控制单元不处于预定控制状态，则由控制状态检测器检测。 响应于来自控制状态检测器的输出信号，中立机构控制电路使中立机构中断传动系。 因此，从电动机到驱动轮的动力流被中断。 控制状态检测器包括用于将来自马达驱动电路的输出电压与参考电压进行比较的电压比较器电路，并产生输出信号。 结果，可以通过简单结构的布置来监视车辆在其运动期间的控制状态。
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公开(公告)号：US5796224A
公开(公告)日：1998-08-18
申请号：US639407
申请日：1996-04-29
申请人： Kiyotaka Hayashi , Hisahiro Ito , Tomoyuki Itoh , Naofumi Hoshi
发明人： Kiyotaka Hayashi , Hisahiro Ito , Tomoyuki Itoh , Naofumi Hoshi
CPC分类号： B60L11/1803 , B60L11/1861 , B60L15/20 , B60L3/0023 , B60L3/0046 , B60L7/14 , B60L2220/14 , B60L2220/16 , B60L2240/421 , B60L2240/423 , B60L2240/427 , B60L2240/429 , B60L2240/486 , B60L2250/28 , Y02T10/7005
摘要： An electronic control unit for controlling an inverter mounted between a main battery and a motor in an electric vehicle includes a feed-back control device which ensures that an actual electric power calculated from an electric current and a voltage inputted to the inverter is equalized to a target electric power calculated from the motor revolution-number, an accelerator opening degree and a shift position. If a circuit between the main battery and the motor is opened during regenerative operation, so that the charging of the main battery with a regenerative electric power cannot be performed and as a result, the voltage is increased to exceed a predetermined value, a regeneration prohibiting device prohibits the regenerative operation of the motor to prevent damage to the inverter due to a counter-electromotive voltage of the motor.
摘要翻译： 一种用于控制安装在电动车辆中的主电池和电动机之间的逆变器的电子控制单元包括：反馈控制装置，其确保从电流计算的实际电力和输入到逆变器的电压相等于 从电动机转速，加速器开度和换档位置算出的目标功率。 如果在再生运转期间主电池和电动机之间的电路被断开，则不能进行再生电力对主电池的充电，结果电压增加到超过预定值，再生禁止 装置禁止电动机的再生操作，以防止由于电动机的反电动势引起的对逆变器的损坏。
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公开(公告)号：US5801498A
公开(公告)日：1998-09-01
申请号：US639475
申请日：1996-04-29
申请人： Katsuyuki Kusano , Hisahiro Ito , Tomoyuki Itoh
发明人： Katsuyuki Kusano , Hisahiro Ito , Tomoyuki Itoh
CPC分类号： B60L3/0023
摘要： A motor control device for controlling the driving and regenerative operation of a motor includes CPU, ROM, RAM and a back-up RAM. An electric power is normally supplied from a subsidiary battery through a second regulator to the back-up RAM. An electric power is also supplied to the CPU, the ROM and the RAM through a main switch and a first regulator, on the one hand, and through the first regulator and a transistor which is turned ON when the number of revolutions of the motor becomes equal to or larger than a predetermined value, on the other hand. Therefore, even if the main switch is opened during traveling of a vehicle at a high speed, the counter-electromotive force of the motor can be decreased by the motor control device which is supplied with the electric power through the transistor to maintain its function, thereby preventing damage to an inverter.
摘要翻译： 用于控制电动机的驱动和再生操作的电动机控制装置包括CPU，ROM，RAM和备用RAM。 电源通常由辅助电池通过第二调节器提供给备用RAM。 一方面，通过主开关和第一调节器以及通过第一调节器和当电动机的转数变为变为ON时接通的晶体管也向CPU，ROM和RAM提供电力 另一方面，等于或大于预定值。 因此，即使在车辆高速行驶期间主开关被打开，也可以通过通过晶体管供给电力的电动机控制装置来降低电动机的反电动势，以保持其功能， 从而防止对逆变器的损坏。
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公开(公告)号：US5967621A
公开(公告)日：1999-10-19
申请号：US856535
申请日：1997-05-14
申请人： Hisahiro Ito , Tomoyuki Itoh , Shinji Yoshikawa , Yasushi Aoki
发明人： Hisahiro Ito , Tomoyuki Itoh , Shinji Yoshikawa , Yasushi Aoki
CPC分类号： B60T8/00 , B60L15/2009 , B60L3/108 , B60L7/12 , B60L7/26 , B60T13/58 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/461 , B60L2240/545 , B60L2240/547 , B60L2240/549 , B60L2250/26 , B60L2270/145 , B60T2270/608 , Y02T10/645 , Y02T10/72 , Y02T10/7275
摘要： In an electric vehicle in which regenerative braking is performed in preference to hydraulic braking, an uncomfortable vibration generated due to a sudden variation in the load of a motor, is prevented at the start of the regenerative braking. At the start of the braking, the regenerative braking force is gradually increased from a previously set regenerative initial value to a demanded braking force rather than being increased quickly to the demanded braking force, thereby preventing the generation of the vibration. A deficiency in the braking force during this time is compensated for with the hydraulic braking force. When the demanded braking force exceeds a regenerative acceptable value, the regenerative braking force does not exceed the acceptable value, and a deficiency of braking force thereafter is compensated for with the hydraulic braking force.
摘要翻译： 在进行再生制动而不是液压制动的电动车辆中，在再生制动开始时防止由于电动机的负载突然变化而产生的不舒服的振动。 在制动开始时，再生制动力从先前设定的再生初始值逐渐增加到所需的制动力，而不是快速增加到所要求的制动力，从而防止振动的产生。 在此期间制动力的不足用液压制动力补偿。 当所要求的制动力超过再生可接受值时，再生制动力不超过可接受值，并且此后的制动力不足由液压制动力补偿。
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公开(公告)号：US5757153A
公开(公告)日：1998-05-26
申请号：US783309
申请日：1997-01-10
申请人： Hisahiro Ito , Tomoyuki Itoh , Shinji Yoshikawa , Yuji Saito
发明人： Hisahiro Ito , Tomoyuki Itoh , Shinji Yoshikawa , Yuji Saito
CPC分类号： B60L15/2054 , B60K1/00 , F16H57/0006 , F16H63/40 , Y02T10/645 , Y02T10/7275
摘要： In an electric vehicle including a transmission provided between a motor and driven wheels, if a shift change detecting means has detected the shift change from a "D" range or an "R" range to an "N" range or a "P" range when a stoppage detecting means has detected that the vehicle is in its substantially stopped state, a torque command value gradually-decreasing means gradually decreases the torque command value for the motor toward zero. This causes the face pressure of meshed portions of gears within the transmission to be moderately decreased, thereby preventing the generation of a striking sound due to a repulsion of the gear.
摘要翻译： 在包括设置在电动机和从动轮之间的变速器的电动汽车中，如果变速检测装置检测到从“D”范围或“R”范围到“N”范围或“P”范围的换档变化 当停止检测装置检测到车辆处于其基本停止状态时，转矩指令值逐渐减小装置逐渐将电动机的转矩指令值减小到零。 这使得变速器内的齿轮的啮合部分的面压适度减小，从而防止由于齿轮的排斥而产生打击声。
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公开(公告)号：US5808428A
公开(公告)日：1998-09-15
申请号：US674841
申请日：1996-07-03
申请人： Hisahiro Ito , Koji Tamenori , Atsushi Shibutani , Morio Kayano , Tomoyuki Itoh
发明人： Hisahiro Ito , Koji Tamenori , Atsushi Shibutani , Morio Kayano , Tomoyuki Itoh
CPC分类号： B60L11/1803 , B60L11/1851 , B60L15/2045 , Y02T10/645 , Y02T10/7005 , Y02T10/705 , Y02T10/7283
摘要： When the voltage of a battery is dropped down to a first threshold value (9.5 V) or less, the driving force of a motor is decreased to a level Y(0)-Y(7) of a limit power determined in accordance with a remaining capacity of the battery. When the voltage is not restored even after a predetermined time is lapsed from the decreasing of the driving force to the level Y(0)-Y(7), the driving force is further decreased down to a lower level Y(0)-Y(7). When the voltage of the battery is restored to a second threshold value (10 V), the driving force of the motor is gradually increased up to a level Z(0)-Z(7) of a limit power determined in accordance with the capacity of the battery. Thus, it is possible to prevent a deep discharging of the battery, while minimizing the influence on the traveling of the vehicle.
摘要翻译： 当电池的电压下降到第一阈值（9.5V）以下时，电动机的驱动力降低到根据a的电流确定的极限功率的水平Y（0）-Y（7） 电池的剩余容量。 即使在从驱动力的降低到Y（0）-Y（7）的经过一段预定的时间之后电压也没有恢复，驱动力进一步降低到较低的水平Y（0）-Y （7）。 当电池的电压恢复到第二阈值（10V）时，马达的驱动力逐渐增加到根据容量确定的限制功率的水平Z（0）-Z（7） 的电池。 因此，可以防止电池的深度放电，同时最小化对车辆行驶的影响。
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公开(公告)号：US5883481A
公开(公告)日：1999-03-16
申请号：US922562
申请日：1997-09-03
申请人： Hisahiro Ito , Tomoyuki Itoh , Shinji Yoshikawa , Yuji Saito
发明人： Hisahiro Ito , Tomoyuki Itoh , Shinji Yoshikawa , Yuji Saito
CPC分类号： B60L15/20 , B60L15/2045 , B60K26/02 , Y02T10/645 , Y02T10/7283
摘要： A control system for an electric vehicle includes an accelerator opening detecting device for detecting a position of an accelerator, and an output command value calculating device connected to the accelerator opening detecting device for calculating an output command value of a drive motor of the electric vehicle based upon the detected accelerator opening. A motor control device is connected to the output command value calculating device, and controls the output of the motor based upon the output command value. An accelerator opening learning device learns actual accelerator opening positions, and includes at least one of a full-closure learning apparatus for generating a full-closure determined value of the accelerator based upon an output of the accelerator opening detecting device, and a full-open learning apparatus for generating a full-open determined value based upon the detected accelerator opening. The system also includes an output command value limiting device for limiting the output command value output by the output command value calculating device until the accelerator opening learning device has generated the full-closure determined value and the full-open determined value. This configuration reduces the rough and unstable output changes of a motor until the learning has been completed.
摘要翻译： 一种用于电动车辆的控制系统包括用于检测加速器的位置的加速器开度检测装置和连接到加速器开度检测装置的输出指令值计算装置，用于计算电动车辆的驱动电动机的输出指令值 在检测到的加速器开度。 马达控制装置连接到输出指令值计算装置，并根据输出指令值控制马达的输出。 加速器开度学习装置学习实际的加速器开度位置，并且包括用于基于加速器开度检测装置的输出产生加速器的全闭合确定值的全闭合学习装置中的至少一个，以及全开 学习装置，用于基于检测到的加速器开度产生全开确定值。 该系统还包括输出指令值限制装置，用于限制由输出指令值计算装置输出的输出指令值，直到加速器开启学习装置产生全闭合确定值和全开确定值。 该配置减少了电机的粗糙和不稳定的输出变化，直到学习完成。
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公开(公告)号：US5734238A
公开(公告)日：1998-03-31
申请号：US726683
申请日：1996-10-07
申请人： Shigeru Yanagisawa , Hisahiro Ito , Masafumi Usuda , Iwao Shimane
发明人： Shigeru Yanagisawa , Hisahiro Ito , Masafumi Usuda , Iwao Shimane
CPC分类号： B60K1/04 , B60L1/003 , B60L11/1803 , B60L11/1851 , B60L11/1868 , B60L11/1877 , B60L15/2009 , B60L15/2045 , B60L3/0061 , B60L3/108 , B60L7/14 , B60L7/26 , B60T13/586 , B60L2210/12 , B60L2240/12 , B60L2240/28 , B60L2240/36 , B60L2240/421 , B60L2240/423 , B60L2240/486 , B60L2240/545 , B60L2240/547 , B60L2240/549 , B60L2240/80 , B60L2250/16 , B60L2250/26 , Y02T10/7005 , Y02T10/7066 , Y02T10/7233 , Y02T10/7283
摘要： A control system in an electric vehicle includes a power driver control device for controlling a driving system including the electric motor, a management control device for controlling a power distributing system including the battery, a brake control device for controlling a braking system including the brake device. These control devices are disposed in a distributed arrangement in the vehicle body. A power train collective-control device administers the controlling of a transmission system; collectively controls and monitors the power driver control device, the management control device, and the brake control device, and also backs up any of these control devices which is out of order, i.e., has developed trouble. Thus, it is possible to provide improvements in processing speed and reliability of the control system in the electric vehicle.
摘要翻译： 电动车辆的控制系统包括用于控制包括电动机的驱动系统的动力驱动器控制装置，用于控制包括电池的配电系统的管理控制装置，用于控制包括制动装置的制动系统的制动控制装置 。 这些控制装置以分布式布置在车体中。 动力总成控制装置管理传动系统的控制; 共同控制和监视功率驱动器控制装置，管理控制装置和制动控制装置，并且还备份任何这些无序的控制装置，即已经开发出麻烦。 因此，可以提高电动车辆中的控制系统的处理速度和可靠性。
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公开(公告)号：US5880574A
公开(公告)日：1999-03-09
申请号：US774783
申请日：1996-12-30
申请人： Kazuo Otsuka , Hisahiro Ito , Sadao Shinohara , Yasumichi Ohnuki , Fumio Anraku , Shinji Yoshikawa
发明人： Kazuo Otsuka , Hisahiro Ito , Sadao Shinohara , Yasumichi Ohnuki , Fumio Anraku , Shinji Yoshikawa
IPC分类号： H02H7/00 , B60L3/00 , B60L11/18 , B60L15/08 , B60L15/28 , H02H7/12 , H02M7/48 , H02P27/06 , H02P27/08 , H02P5/41
CPC分类号： B60L15/08 , B60L11/1803 , B60L3/003 , B60L2270/142 , B60L2270/145 , Y02T10/645 , Y02T10/7005 , Y02T10/7258
摘要： In an electric vehicle in which a motor is driven using the electric power of a battery, and a PWM controller controls an inverter mounted between the battery and the motor. The frequency of the PWM control means is usually set higher than an audio frequency, in order to decrease the switching noise of the inverter. Motor operational state detecting devices detect when the motor is at low speed and high-load operational state, and if there is a possibility that switching elements of the inverter may be over-heated, the frequency of the PWM controller is decreased by a frequency changing device, thereby preventing damage to the switching elements of the inverter due to the over-heating.
摘要翻译： 在使用电池的电力驱动电动机的电动车辆中，PWM控制器控制安装在电池和电动机之间的逆变器。 为了降低逆变器的开关噪声，PWM控制装置的频率通常设定为高于音频频率。 电机运行状态检测装置检测电机何时处于低速和高负载运行状态，如果逆变器的开关元件有可能过热，则PWM控制器的频率会因频率变化而降低 装置，从而防止由于过热导致的逆变器的开关元件的损坏。
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