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公开(公告)号：EP4092904A1
公开(公告)日：2022-11-23
申请号：EP22170925.6
申请日：2022-04-29
申请人： Deere & Company
发明人： White, Lauren , Wu, Long , Thyagarajan, Lav , Danielle, Li , Johnson, Scott
摘要： A control module comprises software instructions for execution by an electronic data processor. An inductance estimator is configured to estimate direct inductance and quadrature inductance associated with the electric machine based on a first set of equations that assume constant rotor resistance and constant magnetic flux. A torque estimator is configured to estimate an observed torque associated with a rotor of the electric machine based a commanded direct-axis voltage and a commanded quadrature-axis voltage, where the observed torque is proportional to the observed power consumption of the electric machine. A pulse-width-modulation (PWM) module is configured to provide pulse-width modulated signals to the electric machine based on the commanded direct-axis voltage and a commanded quadrature-axis voltage. A back-electromotive force adjustment is derived from an estimated, observed torque and a commanded torque.
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公开(公告)号：EP3865629A3
公开(公告)日：2021-08-25
申请号：EP20205965.5
申请日：2020-11-05
申请人： Deere & Company
发明人： Wu, Long , Vilar, Eric
摘要： An energy management system (11) for a ground vehicle comprises an internal combustion engine (10) for providing a primary rotational energy via an engine shaft (56), a motor or electric machine (12) configured to receive a portion of the primary rotational energy or to provide secondary rotational energy, an inverter (34) configured to control a rotor of the electric machine and a hydraulic pump (20) for supplying hydraulic fluid to a hydraulic system load (22). A rotatable pump shaft or pump rotor of the hydraulic pump is coupled or decoupled selectively to the engine shaft, the rotor, or both for receipt of at least a portion of the primary rotational energy, the secondary rotational energy, or both. A vehicle controller establishes a commanded rotor speed for the motor or electric machine based on a target pump rotational speed of a pump rotor or pump shaft for operation of the hydraulic pump at a set point or within an operational region consistent with the hydraulic system load or estimated work task of the vehicle for one or more sampling intervals, where the set point or operational region is defined by a hydraulic pump flow rate versus head characterization curve and where the target pump rotational speed can be independent of a rotational speed of the engine shaft in a first mode.
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公开(公告)号：EP3865629A2
公开(公告)日：2021-08-18
申请号：EP20205965.5
申请日：2020-11-05
申请人： Deere & Company
发明人： Wu, Long , Vilar, Eric
摘要： An energy management system (11) for a ground vehicle comprises an internal combustion engine (10) for providing a primary rotational energy via an engine shaft (56), a motor or electric machine (12) configured to receive a portion of the primary rotational energy or to provide secondary rotational energy, an inverter (34) configured to control a rotor of the electric machine and a hydraulic pump (20) for supplying hydraulic fluid to a hydraulic system load (22). A rotatable pump shaft or pump rotor of the hydraulic pump is coupled or decoupled selectively to the engine shaft, the rotor, or both for receipt of at least a portion of the primary rotational energy, the secondary rotational energy, or both. A vehicle controller establishes a commanded rotor speed for the motor or electric machine based on a target pump rotational speed of a pump rotor or pump shaft for operation of the hydraulic pump at a set point or within an operational region consistent with the hydraulic system load or estimated work task of the vehicle for one or more sampling intervals, where the set point or operational region is defined by a hydraulic pump flow rate versus head characterization curve and where the target pump rotational speed can be independent of a rotational speed of the engine shaft in a first mode.
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4.发明公开
公开(公告)号：EP3817210A1
公开(公告)日：2021-05-05
申请号：EP20202962.5
申请日：2020-10-21
申请人： Deere & Company
发明人： Dutta, Sumit , Wu, Long , Gupta, Shuvam , Loken, David M. , Linn, Eric R.
摘要： Each one of the secondary converters has a corresponding transformer having a primary winding associated with a primary alternating current (AC) signal and a secondary winding associated with a secondary alternating current (AC) signal. A secondary controller provides secondary control signals to the secondary semiconductor switches of the secondary converters with one or more time-synchronized, target phase offsets with respect to an observed phase of the alternating current signal (e.g., primary alternating current signal or the secondary alternating current signal) to provide the target phase offset (or targeted phase offsets) commensurate with or sufficient to support a required electrical energy transfer from the primary controller to the corresponding secondary controller (or secondary controllers).
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公开(公告)号：EP3865336A1
公开(公告)日：2021-08-18
申请号：EP21152089.5
申请日：2021-01-18
申请人： Deere & Company
发明人： White, Lauren M. , Vilar, Eric , Wu, Long , Li, Dan , Duffy, Tyler J.
摘要： An energy management control module is configured for communication with the vehicle controller. The energy management control module is configured to generate generator command data for the generator in a power command mode. In one embodiment, the energy management control module supports a first mode and a second mode. A first mode comprises the power command mode and a stored power extraction mode that are mutually exclusive modes for any sampling interval. In the power command mode of the first mode, the energy management controller is configured to generate generator command data for the generator based on a commanded motor torque and an energy storage power command (e.g., SOC command data) if the primary rotational energy of the internal combustion engine meets or exceeds the total vehicle load for a sampling interval.
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6.发明公开
公开(公告)号：EP3694099A1
公开(公告)日：2020-08-12
申请号：EP20152950.0
申请日：2020-01-21
申请人： Deere & Company
发明人： DeCock, Jacob R. , Shaw, Robert B. , Fu, Tianjun , Wu, Long
摘要： A first inverter has a set of first output phases coupled to a grid voltage source. A second inverter has a set of second output phases coupled to the grid voltage source. A phase measurement device is adapted to measure at least one reference phase of the grid voltage source at a reference phase point. An electronic data processor is configured to determine an observed phase difference between the reference phase point and an observed position sample of one of a pulse-width-modulation carrier signal of the first inverter, the second inverter, or each parallel-coupled inverter. The electronic data processor is configured to determine a target phase difference between the reference phase point and target position sample of one of the pulse-width-modulation carrier signal. The electronic data processor is configured to determine a frequency adjustment to the pulse-width-modulation carrier signal of the first inverter, the second inverter, or all parallel-coupled inverters, based on a difference between the observed phase difference and the target phase difference.
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7.发明公开System and method for charging capacitors of an electric vehicle 审中-公开系统与Verfahren zum Laden von Kondensatoren eines elektrischen Fahrzeugs
公开(公告)号：EP2517921A2
公开(公告)日：2012-10-31
申请号：EP12164059.3
申请日：2012-04-13
申请人： DEERE & COMPANY
发明人： West, Orrin B. , Wu, Long , Singh, Brij N. , Vilar, Zimin W. , Vilar, Eric
CPC分类号： B60L11/02 , B60L11/005 , B60L11/08 , B60L2200/40 , Y02T10/70 , Y02T10/7022 , Y02T10/7077
摘要： An electric vehicle 10 is provided having an electric generator 36 and a motor 34. A voltage bus including a DC link 54 is configured to provide generated electrical energy to the motor 34. A controller 64 may estimate the charging current to a capacitor 56 of the voltage bus based on the current commanded from the generator 36 and the voltage measured across the capacitor 56. The controller 64 may adjust the charging rate of the capacitor 56 based on the estimated charging current.
摘要翻译： 具有发电机36和电动机34的电动车辆10.包括DC链路54的电压总线被配置为向电动机34提供产生的电能。控制器64可估计到电动机34的电容器56的充电电流 基于从发电机36指示的电流的电压总线和在电容器56两端测量的电压。控制器64可以基于估计的充电电流来调整电容器56的充电速率。
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公开(公告)号：EP3940948A1
公开(公告)日：2022-01-19
申请号：EP21183589.7
申请日：2021-07-05
申请人： Deere & Company
发明人： Day, Zack M. , Amundson, Roger K. , Li, Dan , Wu, Long , Booth, Brian J.
摘要： An electronic data processor comprises a data storage device in communication with the electronic data processor. A control module stored in the data storage device, the control module comprising software instructions for execution by the electronic data processor to change dynamically the fundamental switching frequency of the control signals to reduce electromagnetic noise within a target frequency band if the fundamental switching frequency is equal to or greater than a threshold fundamental switching frequency.
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9.发明公开
公开(公告)号：EP3815984A1
公开(公告)日：2021-05-05
申请号：EP20202958.3
申请日：2020-10-21
申请人： Deere & Company
发明人： Dutta, Sumit , Wu, Long , Gupta, Shuvam , Loken, David M. , Linn, Eric R.
摘要： Each one of the secondary converters has a corresponding transformer having a primary winding associated with a primary alternating current (AC) signal and a secondary winding associated with a secondary alternating current (AC) signal. A secondary controller provides secondary control signals to the secondary semiconductor switches of the secondary converters with one or more time-synchronized, target phase offsets with respect to an observed phase of the alternating current signal (e.g., primary alternating current signal or the secondary alternating current signal) to provide the target phase offset (or targeted phase offsets) commensurate with or sufficient to support a required electrical energy transfer from the primary controller to the corresponding secondary controller (or secondary controllers).
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公开(公告)号：EP3213958A1
公开(公告)日：2017-09-06
申请号：EP17158877.5
申请日：2012-02-01
申请人： Deere & Company
发明人： Wu, Long , Tremel, Chris J. , Vilar, Zimin W. , Gilman, Alan K. , Shaw, Robert
CPC分类号： B60L15/20 , B60L2240/423 , B60L2240/527 , Y02T10/645 , Y02T10/7275 , Y10S903/906
摘要： Provided is a method and controller for controlling a vehicle dc bus voltage. The method includes generating a parameter. The parameter is based on a reference dc bus voltage squared. The method includes controlling the vehicle dc bus voltage based on the parameter and a detected dc bus voltage. The method may also include generating another parameter (S705) based on a power demand associated with at least one of a motoring mode operation and a generating mode operation of a. traction motor associated with the vehicle (S710). The power demand is indicated in a message received via a. dedicated high speed data bus. The method includes controlling the vehicle dc bus voltage based on the another parameter (S715).
摘要翻译： 提供了一种用于控制车辆直流母线电压的方法和控制器。 该方法包括生成参数。 该参数基于参考直流母线电压的平方。 该方法包括基于参数和检测到的直流母线电压来控制车辆直流母线电压。 该方法还可以包括基于与a的电动模式操作和发电模式操作中的至少一个相关联的电力需求生成另一个参数（S705）。 与车辆关联的牵引电动机（S710）。 电力需求在通过a。收到的信息中显示。 专用高速数据总线。 该方法包括基于另一参数来控制车辆直流母线电压（S715）。
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