公开(公告)号：US06462504B2

公开(公告)日：2002-10-08

申请号：US09819611

申请日：2001-03-29

申请人： Chiaki Honma ,  Masanori Sugiyama ,  Daisuke Yamada ,  Shinichiroh Iwasaki ,  Kohki Ohara

发明人： Chiaki Honma ,  Masanori Sugiyama ,  Daisuke Yamada ,  Shinichiroh Iwasaki ,  Kohki Ohara

IPC分类号： H02P146

CPC分类号： H02P25/0925

摘要： An energization control device is provided to prevent rapid decrease of current which is flowing through each of phase coils of an electric motor. A time duration is divided into three stages which ranges from an initiation of the current supply to the phase coil to a termination of the current supply to the phase coil. At the first stage, the second stage, and the third stage, soft/hard chopping energization control, 0-volt energization, and duty chopping energization control, respectively, are made. Energizing the phase coil is made by way of a first switching element and a second switching element. At the first stage, depending on an actual current value being in excess of a target current value, either of or both of the first switching element and the second element are made OFF. At the second stage, while the second switching element is being made OFF, the second switching element is made ON. At third stage, while the second switching element is being made OFF, the first switching element is, at a duty cycle, made ON and OFF alternately in repetition.

摘要翻译： 提供通电控制装置，以防止流过电动机的各相线圈的电流的快速下降。 持续时间被分为三个阶段，其范围从电流供应到相位线圈的启动到终止到相线圈的电流供应。 在第一阶段，第二阶段和第三阶段，分别进行软/硬斩波通电控制，0伏通电和占空斩波通电控制。 通过第一开关元件和第二开关元件来激励相线圈。 在第一阶段，根据实际的电流值超过目标电流值，使第一开关元件和第二元件中的任一个或两者成为OFF。 在第二阶段，当第二开关元件关闭时，第二开关元件导通。 在第三阶段，当第二开关元件断开时，第一开关元件以占空比重复地交替地进行ON和OFF。