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公开(公告)号：US20170297695A1
公开(公告)日：2017-10-19
申请号：US15642279
申请日：2017-07-05
Applicant: Bell Helicopter Textron Inc.
Inventor： Joseph M. Schaeffer , Jignesh Patel , Eric O'Neill
CPC classification number: B64C27/57 , B64C27/46 , G05D1/0858
Abstract: A method of assisting in rotor speed control in a rotorcraft can include measuring a rotor speed with a sensor; detecting a droop in the rotor speed beyond a lower droop limit; and commanding a decrease in collective in response to the rotor speed drooping beyond the lower droop limit. A system of assisting in rotor speed control in a rotorcraft, the system can include: a computer having a control law, the control law operable to generate a decrease collective command to an actuator in response to a rotor speed decreasing below a lower droop limit; wherein the lower droop limit is below a normal lower rotor speed range.
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2.发明授权System and method for maximizing aircraft safe landing capability during one engine inoperative operation 有权在一个发动机不工作运行期间最大化飞机安全着陆能力的系统和方法公开(公告)号：US09567091B2
公开(公告)日：2017-02-14
申请号：US14297159
申请日：2014-06-05
Applicant: Bell Helicopter Textron Inc.
Inventor： Joseph M. Schaeffer , Jignesh Patel , Eric O'Neill
CPC classification number: B64D31/00 , B64C19/00 , B64C27/54 , B64C27/57 , G05D1/0072
Abstract: A method of preserving rotor speed during a one engine inoperative operation of an rotorcraft, the method can include: detecting a failure of a first engine; monitoring an engine parameter associated with a second engine; using a computer processor to compare the engine parameter to an engine limit; and commanding a decrease collective pitch command when the engine parameter is within a predefined range of the engine limit.
Abstract translation: 一种在旋转飞机的一个发动机不工作的操作期间保持转子速度的方法，所述方法可以包括：检测第一发动机的故障; 监测与第二发动机相关联的发动机参数; 使用计算机处理器将发动机参数与发动机限制进行比较; 并且当所述发动机参数在所述发动机限制的预定义范围内时，命令减小集体俯仰命令。
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公开(公告)号：US09886039B2
公开(公告)日：2018-02-06
申请号：US14623382
申请日：2015-02-16
Applicant: Bell Helicopter Textron Inc.
Inventor： Luke D. Gillett , Joseph M. Schaeffer , Christopher M. Bothwell , Robert Worsham , Jillian Alfred , Sung Kim
IPC: G05D1/08 , G05D1/06 , B64C27/10 , B64C27/16 , B64C27/605
CPC classification number: G05D1/0607 , B64C27/10 , B64C27/16 , B64C27/605
Abstract: A flight control system having a control law, the control law operable to generate a modified pitch command, the modified pitch command representing a greater amount of collective pitch compared to an amount of collective pitch generated by a first pitch command, the modified pitch command being generated because a vertical descent speed of the rotorcraft at a given forward airspeed is greater than a threshold. A method of avoiding entry into an undesired vertical descent speed region during operation of a rotorcraft, including measuring a forward airspeed; evaluating a vertical descent of the rotorcraft; and generating a modified collective pitch command in respond to a first collective pitch command having a collective pitch value that would cause the rotorcraft to experience a vertical descent rate greater than a threshold value at the forward airspeed of the rotorcraft.
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4.发明申请SYSTEM AND METHOD FOR MAXIMIZING AIRCRAFT SAFE LANDING CAPABILITY DURING ONE ENGINE INOPERATIVE OPERATION 审中-公开在一个发动机无效操作期间最大化飞机安全着陆能力的系统和方法公开(公告)号：US20140365039A1
公开(公告)日：2014-12-11
申请号：US14297159
申请日：2014-06-05
Applicant: BELL HELICOPTER TEXTRON INC.
Inventor： Joseph M. Schaeffer , Jignesh Patel , Eric O'Neill
CPC classification number: B64D31/00 , B64C19/00 , B64C27/54 , B64C27/57 , G05D1/0072
Abstract: A method of preserving rotor speed during a one engine inoperative operation of an rotorcraft, the method can include: detecting a failure of a first engine; monitoring an engine parameter associated with a second engine; using a computer processor to compare the engine parameter to an engine limit; and commanding a decrease collective pitch command when the engine parameter is within a predefined range of the engine limit.
Abstract translation: 一种在旋转飞机的一个发动机不工作的操作期间保持转子速度的方法，所述方法可以包括：检测第一发动机的故障; 监测与第二发动机相关联的发动机参数; 使用计算机处理器将发动机参数与发动机限制进行比较; 并且当所述发动机参数在所述发动机限制的预定义范围内时，命令减小集体俯仰命令。
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5.发明申请SYSTEM AND METHOD OF ADAPTIVELY GOVERNING ROTOR SPEED FOR OPTIMAL PERFORMANCE 有权适应转子转速的系统和方法，以获得最佳性能公开(公告)号：US20140252158A1
公开(公告)日：2014-09-11
申请号：US13789034
申请日：2013-03-07
Applicant: BELL HELICOPTER TEXTRON INC.
Inventor： Joseph M. Schaeffer
IPC: B64D31/06
Abstract: The system for adaptively governing a speed of a rotor assembly in an aircraft can include a processor configured for comparing receivable data to limit data in an algorithm and subsequently making one or more commands that affect the speed of the rotor assembly, the algorithm being configured for analyzing power available during operation of the aircraft. The method can include calculating a first power available by comparing an actual transmission torque to a transmission torque limit; calculating a second power available by comparing an actual engine exhaust temperature to an engine exhaust temperature limit; and comparing the first power available to the second power available.
Abstract translation: 用于自适应地控制飞行器中的转子组件的速度的系统可以包括处理器，其被配置为将可接收数据与算法中的限制数据进行比较，并且随后产生影响转子组件的速度的一个或多个命令，该算法被配置为 分析飞机运行期间可用的功率。 该方法可以包括通过将实际传动转矩与传动转矩限制进行比较来计算可获得的第一功率; 通过将实际发动机排气温度与发动机排气温度限制进行比较来计算可用的第二功率; 以及将可用的第一功率与可用的第二功率进行比较。
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Patent Agency Ranking
公开(公告)号：US10479491B2
公开(公告)日：2019-11-19
申请号：US15679645
申请日：2017-08-17
Applicant: Bell Helicopter Textron Inc.
Inventor： Joseph M. Schaeffer , Luke Dafydd Gillett
Abstract: A method for operating a rotorcraft includes providing a power hold by performing monitoring one or more operational parameters of the rotorcraft during flight, determining whether operational parameters need adjustment according to a relationship between the operational parameters and operating limits associated with a power setting for the power hold, and determining a flight parameter for one or more flight control devices of the rotorcraft in response to determining that the operational parameters need adjustment. Providing the power hold further includes sending a position set signal to a trim assembly of the rotorcraft to set a first position of a pilot control connected to the trim assembly according to a pilot control setting generated according to the flight parameter, and controlling a flight control device control according to a second position of the pilot control.
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公开(公告)号：US09856017B2
公开(公告)日：2018-01-02
申请号：US14297114
申请日：2014-06-05
Applicant: Bell Helicopter Textron Inc.
Inventor： Joseph M. Schaeffer , Jignesh Patel , Eric O'Neill
CPC classification number: B64C27/04 , G05D1/0833 , G05D1/0858
Abstract: A method of limiting vertical axis augmentation in a rotorcraft, the method comprising: measuring a torque with a sensor; deriving a comparison of the torque to a lower torque limit, using a computer processor; and adjusting a vertical axis control command based upon the comparison of the torque to the lower torque limit.
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8.发明授权System and method of adaptively governing rotor speed for optimal performance 有权自适应地控制转子转速的系统和方法，以获得最佳性能公开(公告)号：US09051055B2
公开(公告)日：2015-06-09
申请号：US13789034
申请日：2013-03-07
Applicant: Bell Helicopter Textron Inc.
Inventor： Joseph M. Schaeffer
Abstract: The system for adaptively governing a speed of a rotor assembly in an aircraft can include a processor configured for comparing receivable data to limit data in an algorithm and subsequently making one or more commands that affect the speed of the rotor assembly, the algorithm being configured for analyzing power available during operation of the aircraft. The method can include calculating a first power available by comparing an actual transmission torque to a transmission torque limit; calculating a second power available by comparing an actual engine exhaust temperature to an engine exhaust temperature limit; and comparing the first power available to the second power available.
Abstract translation: 用于自适应地控制飞行器中的转子组件的速度的系统可以包括处理器，其被配置为将可接收数据与算法中的限制数据进行比较，并且随后产生影响转子组件的速度的一个或多个命令，该算法被配置为 分析飞机运行期间可用的功率。 该方法可以包括通过将实际传动转矩与传动转矩限制进行比较来计算可获得的第一功率; 通过将实际发动机排气温度与发动机排气温度限制进行比较来计算可用的第二功率; 以及将可用的第一功率与可用的第二功率进行比较。
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公开(公告)号：US20190055004A1
公开(公告)日：2019-02-21
申请号：US15679645
申请日：2017-08-17
Applicant: Bell Helicopter Textron Inc.
Inventor： Joseph M. Schaeffer , Luke Dafydd Gillett
Abstract: A method for operating a rotorcraft includes providing a power hold by performing monitoring one or more operational parameters of the rotorcraft during flight, determining whether operational parameters need adjustment according to a relationship between the operational parameters and operating limits associated with a power setting for the power hold, and determining a flight parameter for one or more flight control devices of the rotorcraft in response to determining that the operational parameters need adjustment. Providing the power hold further includes sending a position set signal to a trim assembly of the rotorcraft to set a first position of a pilot control connected to the trim assembly according to a pilot control setting generated according to the flight parameter, and controlling a flight control device control according to a second position of the pilot control.
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公开(公告)号：US20140363288A1
公开(公告)日：2014-12-11
申请号：US14297136
申请日：2014-06-05
Applicant: Bell Helicopter Textron Inc.
Inventor： Joseph M. Schaeffer , Jignesh Patel , Eric O'Neill
CPC classification number: B64C27/57 , B64C27/46 , G05D1/0858
Abstract: A method of assisting in rotor speed control in a rotorcraft can include measuring a rotor speed with a sensor; detecting a droop in the rotor speed beyond a lower droop limit; and commanding a decrease in collective in response to the rotor speed drooping beyond the lower droop limit. A system of assisting in rotor speed control in a rotorcraft, the system can include: a computer having a control law, the control law operable to generate an increase collective command to an actuator in response to a rotor speed decreasing below a lower droop limit; wherein the lower droop limit is below a normal lower rotor speed range.
Abstract translation: 在旋翼飞机中协助转子速度控制的方法可以包括用传感器测量转子速度; 检测转子速度下降超过较低的下限; 并且响应于转子速度下降超过下限下限而指令集体减少。 一种在旋翼航空器中辅助转子速度控制的系统，所述系统可以包括：具有控制规律的计算机，所述控制规律可操作以响应于转子速度降低到低于下限极限而产生对致动器的增加的集体命令; 其中下部下垂极限低于正常的较低转子速度范围。
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