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    • 6. 发明授权
    • Circuit and method for detecting a dielectric breakdown fault
    • 用于检测介质击穿故障的电路和方法
    • US07639021B2
    • 2009-12-29
    • US11747755
    • 2007-05-11
    • Edward LiMark GundersonWen Li
    • Edward LiMark GundersonWen Li
    • G01R31/14H02K11/00
    • G01R31/14B60L3/0023B60L3/0069B60W50/04G01R31/006G01R31/025
    • An improved circuit and method for detecting dielectric breakdown and ground fault conditions is provided. The circuitry and method of the present invention include taking a continuous voltage reading of the high voltage battery and sampling the continuous voltage reading of the high voltage battery at a fixed time interval. The circuitry and method calculate a change in the continuous voltage reading of the high voltage battery over the change in time and repeatedly calculate an optimum fixed time interval and an optimum change in voltage over time. Storage of the optimum fixed time interval and optimum change in voltage over time provides for repeatedly comparing the optimum change in voltage over the fixed time interval to the constant voltage of the high voltage battery to calculate the resistance of the dielectric breakdown fault. The calculation of the resistance of the dielectric breakdown fault is carried out independently of the capacitance of the electric circuit. The circuit and method provide adjustment of the optimum fixed time interval to improve the speed of the comparison of the optimum change in voltage over time to the constant voltage of the high voltage battery to calculate the resistance of the dielectric breakdown fault.
    • 提供了一种用于检测介质击穿和接地故障条件的改进的电路和方法。 本发明的电路和方法包括对高电压电池进行连续电压读数,并以固定的时间间隔对高压电池的连续电压读数进行采样。 电路和方法计算高压电池的连续电压读数随时间变化的变化,并重复计算最佳固定时间间隔和电压随时间的最佳变化。 存储最佳固定时间间隔和电压随时间的最佳变化提供了将固定时间间隔内的最佳电压变化与高压电池的恒定电压进行重复比较,以计算电介质击穿故障的电阻。 电介质击穿故障电阻的计算与电路的电容无关地进行。 电路和方法提供最佳固定时间间隔的调整,以提高电压随时间的最佳变化与高压电池的恒定电压的比较的速度,以计​​算电介质击穿故障的电阻。
    • 8. 发明授权
    • Electric motor control with integral battery charger
    • 带电池充电器的电机控制
    • US5500579A
    • 1996-03-19
    • US368064
    • 1995-01-03
    • Sang H. KimEdward LiRalph M. Mitchell
    • Sang H. KimEdward LiRalph M. Mitchell
    • H02J7/02H02K23/52H02J7/14
    • B60L11/1803B60L11/185H02J7/022B60L2210/12B60L2210/14B60L2220/54Y02T10/641Y02T10/7005Y02T10/7072Y02T10/7225Y02T10/7233Y02T90/121Y02T90/127Y02T90/128Y02T90/14Y10S320/24
    • An electric motor control with integral battery charger includes battery terminals (201) for connection to a battery (203). A boost converter circuit (111) is coupled to an armature winding (209) of the electric motor (117), and has an input (131) coupled to a power source (211). A buck converter circuit (105) is coupled to a field winding (207) of the electric motor (117), and an input (133) coupled to the power source (211). A controller (205), is coupled to the battery terminals (201) and the power source (211). The controller (205) couples a boost output (107) of the boost converter circuit (111 ) to the battery terminals (201) while a terminal voltage of the power source (211) is lower than a terminal voltage of the battery (203) measured at the battery terminals (201), and couples a buck output (107) of the buck converter circuit (105) to the battery terminals (201 ) while the terminal voltage of the power source (211) is higher than the terminal voltage of the battery (203).
    • 具有集成电池充电器的电动机控制器包括用于连接到电池(203)的电池端子(201)。 升压转换器电路(111)耦合到电动机(117)的电枢绕组(209),并且具有耦合到电源(211)的输入端(131)。 降压转换器电路(105)耦合到电动机(117)的励磁绕组(207​​),以及耦合到电源(211)的输入端(133)。 控制器(205)耦合到电池端子(201)和电源(211)。 当电源(211)的端电压低于电池(203)的端电压时,控制器(205)将升压转换器电路(111)的升压输出(107)耦合到电池端子(201) 在所述电池端子(201)处测量,并且将所述降压转换器电路(105)的降压输出(107)与所述电池端子(201)耦合,同时所述电源(211)的端子电压高于所述电源端子 电池(203)。