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1.发明授权公开(公告)号：US08054017B2
公开(公告)日：2011-11-08
申请号：US12469169
申请日：2009-05-20
申请人： Hiroyasu Baba , Yuji Hayashi , Naoki Yamamoto , Kiyoshi Nagata , Masaya Ootake
发明人： Hiroyasu Baba , Yuji Hayashi , Naoki Yamamoto , Kiyoshi Nagata , Masaya Ootake
摘要： An apparatus for estimating rotor position for brushless motors capable of accurately estimating rotor position is provided. The apparatus may be used as a start-up system for brushless motors. The apparatus performs accurate estimation even though power source voltage fluctuates, and is able to provide compact configuration. The apparatus supplies voltage to the coils respectively. In each supplying period, the apparatus counts voltage supply period of time until current value reaches to a current threshold value. Since a coil indicative of rotor stop position is prone to be magnetically saturated. The apparatus estimates the rotor stop position based on the voltage supply periods. Then, the apparatus starts a switching sequence based on the rotor stop position.
摘要翻译： 提供了一种用于估计能够精确估计转子位置的无刷电动机的转子位置的装置。 该装置可以用作无刷电动机的启动系统。 即使电源电压波动，该装置执行精确的估计，并且能够提供紧凑的配置。 该装置分别向线圈提供电压。 在每个供应周期中，该装置计算直到当前值达到当前阈值的电压供应时间段。 由于指示转子停止位置的线圈易于磁饱和。 该装置基于电压供应周期来估计转子停止位置。 然后，该装置基于转子停止位置开始切换顺序。
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2.发明授权公开(公告)号：US08072165B2
公开(公告)日：2011-12-06
申请号：US12469187
申请日：2009-05-20
申请人： Hiroyasu Baba , Yuji Hayashi , Kiyoshi Nagata , Masaya Ootake
发明人： Hiroyasu Baba , Yuji Hayashi , Kiyoshi Nagata , Masaya Ootake
摘要： An apparatus for estimating rotor position for brushless motors capable of accurately estimating rotor position even though power source voltage fluctuates is provided. First, the power source voltage is detected, and voltage is supplied only for a certain period of time and a current response is detected. The current detection value is multiplied by the ratio of a reference voltage to the power source voltage detected to correct the current detection value. Specifically, the peak current detection value is corrected upwardly or downwardly in each direction. A voltage supplying direction in which the current detection value is maximized is searched for to estimate the rotor position and a brushless motor is started.
摘要翻译： 提供一种用于估计即使电源电压波动能够准确地估计转子位置的无刷电动机的转子位置的装置。 首先，检测电源电压，并且仅在一定时间段内提供电压，并检测电流响应。 电流检测值乘以基准电压与检测到的电源电压的比值，以校正电流检测值。 具体地，峰值电流检测值在每个方向上上下校正。 搜索电流检测值最大化的电压供给方向，来估计转子位置，开始无刷电动机。
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公开(公告)号：US08766566B2
公开(公告)日：2014-07-01
申请号：US13330901
申请日：2011-12-20
申请人： Hiroyasu Baba , Kunio Iritani , Masao Tokunaga
发明人： Hiroyasu Baba , Kunio Iritani , Masao Tokunaga
CPC分类号： H02J7/0054 , B60L11/1803 , H02J7/345 , Y02T10/7011
摘要： A battery temperature rise causing system has a converting unit for converting voltage of electric power held in one of a rechargeable battery and an accumulator and applies the converted voltage to the other one, and a control unit controlling the converting unit to alternately perform first transfer of electric power from the battery to the accumulator and second transfer of electric power from the accumulator to the battery while changing the first transfer for the second transfer each time the battery voltage reaches a lower limit and changing the second transfer for the first transfer each time the battery voltage reaches an upper limit, and to increase temperature of the battery due to heat generated by electric current flowing through the battery during the electric power transfer.
摘要翻译： 电池升温引起系统具有转换单元，用于转换保持在可再充电电池和蓄电池中的一个中的电力的电压，并将转换的电压施加到另一个，并且控制单元控制转换单元以交替地执行 从电池到蓄电池的电力，并且在每次电池电压达到下限的同时改变用于第二次转印的第一次转印时，将电力从蓄能器转移到电池，并且每次在第一次转印时改变第二次转印 电池电压达到上限，并且由于在电力传送期间由于流过电池的电流产生的热而增加电池的温度。
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