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公开(公告)号：US07609496B2
公开(公告)日：2009-10-27
申请号：US11355176
申请日：2006-02-16
CPC分类号： F16H61/12 , F16H2061/1208 , F16H2061/1268 , F16H2061/1292
摘要： An electrical load is supplied with power from a driving power source, and a microprocessor (CPU) controls the opening/closing current supply rate (duty factor) of an opening/closing element in accordance with target current and driving power source voltage so that open loop control is carried out to achieve predetermined target current. The voltage between both the ends of a current detecting resistor connected to the ground side of the opening/closing element is input as a monitoring voltage from a current detecting amplifying circuit portion through a multichannel AD converter to CPU. When the error between the comparison target voltage corresponding to the target current and the monitoring voltage is above a first permissible error, CPU judges that there is an abnormality sign, and if the error is above a larger second permissible error, CPU judges that there is appearing abnormality. Accordingly, an abnormality sign of a semi-wire-breaking/semi-short-circuit state of the electrical load can be sensed, and abnormality notification can be carried out.
摘要翻译： 电力负载由驱动电源供电，微处理器（CPU）根据目标电流和驱动电源电压来控制开闭元件的开/关电流供给率（占空因数），使得开路 进行环路控制以实现预定的目标电流。 连接到开关元件的接地侧的电流检测电阻的两端之间的电压作为监视电压从电流检测放大电路部分通过多通道AD转换器输入到CPU。 当对应于目标电流的比较目标电压与监视电压之间的误差高于第一容许误差时，CPU判断出存在异常信号，如果误差高于较大的第二容许误差，则CPU判断存在 出现异常。 因此，可以感测出电负载的半断线/半短路状态的异常符号，并且可以进行异常通知。
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公开(公告)号：US20070030068A1
公开(公告)日：2007-02-08
申请号：US11355176
申请日：2006-02-16
IPC分类号： H03F3/45
CPC分类号： F16H61/12 , F16H2061/1208 , F16H2061/1268 , F16H2061/1292
摘要： An electrical load is supplied with power from a driving power source, and a microprocessor (CPU) controls the opening/closing current supply rate (duty factor) of an opening/closing element in accordance with target current and driving power source voltage so that open loop control is carried out to achieve predetermined target current. The voltage between both the ends of a current detecting resistor connected to the ground side of the opening/closing element is input as a monitoring voltage from a current detecting amplifying circuit portion through a multichannel AD converter to CPU. When the error between the comparison target voltage corresponding to the target current and the monitoring voltage is above a first permissible error, CPU judges that there is an abnormality sign, and if the error is above a larger second permissible error, CPU judges that there is appearing abnormality. Accordingly, an abnormality sign of a semi-wire-breaking/semi-short-circuit state of the electrical load can be sensed, and abnormality notification can be carried out.
摘要翻译： 电力负载由驱动电源供电，微处理器（CPU）根据目标电流和驱动电源电压来控制开闭元件的开/关电流供给率（占空因数），使得开路 进行环路控制以实现预定的目标电流。 连接到开关元件的接地侧的电流检测电阻的两端之间的电压作为监视电压从电流检测放大电路部分通过多通道AD转换器输入到CPU。 当对应于目标电流的比较目标电压与监视电压之间的误差高于第一容许误差时，CPU判断出有异常信号，如果误差高于较大的第二容许误差，则CPU会判断有 出现异常。 因此，可以感测出电负载的半断线/半短路状态的异常符号，并且可以进行异常通知。
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公开(公告)号：US07504743B2
公开(公告)日：2009-03-17
申请号：US11714864
申请日：2007-03-07
IPC分类号： B60L1/00
CPC分类号： H02H7/268 , G01R31/006 , G01R31/025 , G01R31/026
摘要： A power supply control device for on-vehicle electric loads is proposed, the control device being capable of detecting breakages at a plurality of electrical loads, a positive side wiring thereof, a negative side wiring thereof, and a commutation circuit. Energization of electrical loads from driving power supply is controlled using switching elements. Anode terminals of commutation diodes connected in parallel with the electrical loads are connected to a load ground by an external common negative line or external individual negative lines. A breakage abnormality at the external common negative line or external individual negative lines is detected by negative line breakage abnormality detection circuit. Load currents at the electrical loads are detected by current detection resistors and current detecting differential amplifier circuits, and it is determined that there is an individual abnormality when a detected current is greatly different from a target current.
摘要翻译： 提出了一种用于车载电力负载的电源控制装置，该控制装置能够检测多个电负载中的断路，其正极侧配线，负极侧配线以及换向电路。 使用开关元件来控制来自驱动电源的电力负载。 与负载并联连接的整流二极管的阳极端子通过外部公共负极线或外部单独的负极线连接到负载接地。 通过负线断线异常检测电路检测外部公共负极线或外部单独负极线的断线异常。 电流检测电阻和电流检测差分放大电路检测负载电流，当检测到的电流与目标电流大不相同时，确定存在单独的异常。
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公开(公告)号：US20080093924A1
公开(公告)日：2008-04-24
申请号：US11714864
申请日：2007-03-07
IPC分类号： B60L1/00
CPC分类号： H02H7/268 , G01R31/006 , G01R31/025 , G01R31/026
摘要： A power supply control device for on-vehicle electric loads is proposed, the control device being capable of detecting breakages at a plurality of electrical loads, a positive side wiring thereof, a negative side wiring thereof, and a commutation circuit. Energization of electrical loads from driving power supply is controlled using switching elements. Anode terminals of commutation diodes connected in parallel with the electrical loads are connected to a load ground by an external common negative line or external individual negative lines. A breakage abnormality at the external common negative line or external individual negative lines is detected by negative line breakage abnormality detection circuit. Load currents at the electrical loads are detected by current detection resistors and current detecting differential amplifier circuits, and it is determined that there is an individual abnormality when a detected current is greatly different from a target current.
摘要翻译： 提出了一种用于车载电力负载的电源控制装置，该控制装置能够检测多个电负载中的断路，其正极侧配线，负极侧配线以及换向电路。 使用开关元件来控制来自驱动电源的电力负载。 与负载并联连接的整流二极管的阳极端子通过外部公共负极线或外部单独的负极线连接到负载接地。 通过负线断线异常检测电路检测外部公共负极线或外部单独负极线的断线异常。 电流检测电阻和电流检测差分放大电路检测负载电流，当检测到的电流与目标电流大不相同时，确定存在单独的异常。
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公开(公告)号：US08890554B2
公开(公告)日：2014-11-18
申请号：US12886072
申请日：2010-09-20
IPC分类号： G01R31/00
CPC分类号： H02M3/156 , H02J1/04 , H02M2001/0025
摘要： Initial calibration is performed only under normal-temperature environment, and accurate current control is performed under practical use temperature environment. A temperature sensor 171 is arranged close to a current detection resistor 126 having predetermined temperature characteristics. Resistance values are estimated in a calibration environment and a practical use environment, an actually measured load current in the calibration environment corresponding to a target load current is stored as control characteristic data, a corrected target current corresponding to the target load current is calculated, and a converted target current based on a change ratio of current detection resistance is controlled as a target current for current control. A resistance change amount by heat generation of the current detection resistor 126 which cannot be entirely detected by the temperature sensor 171 is corrected in control characteristic data, such that linearity of control characteristics is improved.
摘要翻译： 初始校准仅在常温环境下进行，在实际使用温度环境下进行精确的电流控制。 温度传感器171布置在具有预定温度特性的电流检测电阻126附近。 在校准环境和实际使用环境中估计电阻值，将与目标负载电流相对应的校准环境中的实际测量的负载电流存储为控制特性数据，计算与目标负载电流相对应的校正目标电流，以及 基于电流检测电阻的变化率的转换的目标电流被控制为用于电流控制的目标电流。 在控制特性数据中校正由温度传感器171不能完全检测的电流检测电阻器126的发热的电阻变化量，使得控制特性的线性提高。
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