-
公开(公告)号：US10274040B2
公开(公告)日：2019-04-30
申请号：US15481040
申请日：2017-04-06
发明人： Xiaofeng Mao , Hai Xu , Jeffrey N. Heaton , Scott C. Mrdeza
IPC分类号： F16F15/00 , F16F15/02 , F16F15/18 , F16F15/023 , F16F15/027 , F16F15/173
摘要： An active damping system for a driveline includes a prop shaft configured to transmit engine power from an engine to a load, a sealed damper housing, and an active damping fluid contained within the sealed damper housing. A viscosity of the active damping fluid is changeable based on a torsional vibration of the prop shaft. The active damping system further includes a piston fixed to a side of the prop shaft and in communication with the active damping fluid. The piston is configured to rotate about an axis of the prop shaft. The system further includes a viscosity changing unit in communication with the active damping fluid, and a controller operatively connected to the viscosity changing unit. The controller is configured to cause the viscosity changing unit to change a viscosity of the active damping fluid. The viscosity of the active damping fluid changes the torsional vibration.
-
公开(公告)号：US09662974B2
公开(公告)日：2017-05-30
申请号：US14620018
申请日：2015-02-11
IPC分类号： G06F7/00 , B60K23/08 , B60W30/18 , B60K1/00 , B60K17/356
CPC分类号： B60K23/0808 , B60K1/00 , B60K17/356 , B60K2001/001 , B60K2023/0825 , B60K2023/0833 , B60W30/18 , B60W2720/30
摘要： Methods and systems for controlling torque for a front axle and a rear axle of a vehicle with independent front and rear propulsion systems are provided. A data unit is configured to obtain data for one or more parameters of a vehicle while the vehicle is being driven. A processor is coupled to the data unit, and is configured to provide torque to at least facilitate providing torque the front axle and the rear axle independently based on the one or more parameters.
-
公开(公告)号：US20170137012A1
公开(公告)日：2017-05-18
申请号：US14942035
申请日：2015-11-16
发明人： Xiaofeng Mao , Thomas A. Klingler , Eric E. Krueger , William R. Cawthorne , R. Travis Schwenke , Scott C. Mrdeza
CPC分类号： B60W20/10 , B60K6/40 , B60K6/52 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , B60W30/02 , B60W30/18172 , B60W2510/244 , B60W2520/10 , B60W2520/14 , B60W2520/26 , B60W2520/28 , B60W2540/00 , B60W2540/18 , B60W2710/0666 , B60W2710/083 , B60W2710/244 , B60W2720/403 , B60Y2200/92 , B60Y2300/182 , B60Y2300/188 , Y02T10/6265 , Y02T10/6286 , Y02T10/7258 , Y10S903/905 , Y10S903/906 , Y10S903/907 , Y10S903/916
摘要： A powertrain includes a propulsion system having first and second torque sources, and first and second drive axles respectively connected to and independently driven by the first and second torque sources. A permissible range of torque contribution from the torque sources to the respective first and second drive axles is defined by a component torque window. The powertrain includes sensors for detecting a dynamic driving maneuver of a vehicle having the powertrain. A controller executes a method to adjust a size and/or orientation of a chassis torque window during the detected dynamic driving maneuver, determine an optimally efficient axle torque operating point that falls on a torque line within the component torque window in proximity to the chassis torque window, and command the torque contribution via transmission of torque control signals to the first and second torque sources to achieve the optimally efficient axle torque operating point.
-
公开(公告)号：US09231515B2
公开(公告)日：2016-01-05
申请号：US13767917
申请日：2013-02-15
发明人： Xiaofeng Mao , Lei Hao
CPC分类号： H02P29/021 , B60L15/20 , B60W10/08 , G01R21/00 , G01R21/06 , G01R31/343 , H02P29/0241 , Y02T10/7258 , Y02T10/7275
摘要： A method of monitoring performance of an electric motor includes calculating an actual input power and an expected input power of the electric motor. A power difference between the actual input power and the expected input power is recursively calculated over at least one period of an electrical cycle of the electric motor to determine a variance in the power difference during the at least one period of the electrical cycle. The variance in the power difference is compared to a threshold value to determine if the variance in the power difference is greater than the threshold value or less than the threshold value. The control module may signal that the electric motor is not operating within allowable operating parameters when the variance in the power difference is less than the threshold value.
摘要翻译： 监视电动机性能的方法包括计算电动机的实际输入功率和预期输入功率。 实际输入功率和预期输入功率之间的功率差在电动机的电循环的至少一个周期内被递归地计算，以确定电周期的至少一个周期期间功率差的变化。 将功率差异的方差与阈值进行比较，以确定功率差的方差是否大于阈值或小于阈值。 当功率差的变化小于阈值时，控制模块可以指示电动机不工作在可允许的操作参数内。
-
公开(公告)号：US09796226B2
公开(公告)日：2017-10-24
申请号：US14585552
申请日：2014-12-30
发明人： Phillip M. Turner , Richard O. Gillett, Jr. , Stephen R. Pastor , Thomas A. Klingler , Xiaofeng Mao
摘要： Methods and apparatus are provided for moving a receiver associated with a hitch frame of a vehicle. The method includes receiving data indicating a hand wheel angle; determining, with a processor, a position for the receiver relative to the hitch frame based on the hand wheel angle; and outputting one or more control signals to a motor coupled to the receiver to move the receiver relative to a longitudinal axis of the vehicle based on the determination.
-
6.发明申请FRONT-REAR TORQUE SPLIT CONTROL FOR AN ALL-WHEEL-DRIVE VEHICLE WITH INDEPENDENT POWER-SOURCES 审中-公开具有独立电源的全轮驱动车辆的前后扭矩分配控制公开(公告)号：US20160121883A1
公开(公告)日：2016-05-05
申请号：US14533142
申请日：2014-11-05
IPC分类号： B60W30/02 , B60W10/119 , B60W10/06 , B60W10/08 , B60K17/356 , B60W20/00
CPC分类号： B60W30/02 , B60K6/52 , B60K17/356 , B60W10/06 , B60W10/08 , B60W10/16 , B60W20/10 , B60W20/108 , B60W30/18172 , B60W2050/0008 , B60W2050/0012 , B60W2050/0026 , B60W2520/10 , B60W2520/105 , B60W2520/14 , B60W2520/26 , B60W2520/263 , B60W2520/266 , B60W2520/28 , B60W2540/18 , B60W2710/0666 , B60W2710/083 , B60W2720/14 , B60W2720/26 , B60W2720/263 , B60W2720/28 , B60W2720/30 , B60W2720/403 , B60W2720/406 , Y10S903/93
摘要： A method of controlling operation of an all-wheel-drive vehicle having independent power-sources includes driving the vehicle via at least one of a first power-source through a first set of wheels and a second power-source through a second set of wheels. The method also includes determining a rotating speed of each of the first and second sets of wheels relative to a road surface. The method additionally includes determining a road speed of the vehicle and determining a longitudinal acceleration of the vehicle. The method also includes determining a slip of the vehicle relative to the road surface using the determined rotating speed of each of the first and second sets of wheels and the speed of the vehicle. Furthermore, the method includes controlling the vehicle slip via regulating a torque output of the first and/or second power-source.
摘要翻译： 控制具有独立电源的全轮驱动车辆的操作的方法包括经由第一组车轮的第一动力源和通过第二组车轮的第二动力源中的至少一个来驱动车辆 。 该方法还包括确定第一组和第二组轮相对于路面的每一个的转速。 该方法还包括确定车辆的道路速度并确定车辆的纵向加速度。 该方法还包括使用所确定的第一组和第二组车轮的转速以及车辆的速度来确定车辆相对于路面的滑动。 此外，该方法包括通过调节第一和/或第二电源的转矩输出来控制车辆滑动。
-
7.发明授权公开(公告)号：US10946865B1
公开(公告)日：2021-03-16
申请号：US16601043
申请日：2019-10-14
摘要： A power circuit includes a power source and a plurality components that connect the power source to a subsystem of a vehicle. A fault detection module receives voltages at an output of the power source and at an input of the subsystem and current drawn by the subsystem, and distinguishes between a power source failure, a permanent and an intermittent disconnection of one of the components from the power source, and a loose connection between the power circuit and the subsystem or corrosion of one of the components, based on analyses of the voltages and the current. A fault mitigation module mitigates the first two faults by switching to a different power source in the vehicle to supply power to the subsystem, and mitigates the third and fourth faults by reducing the power consumed by the subsystem and by generating a warning regarding the intermittent disconnection or loose connection.
-
8.发明申请公开(公告)号：US20190066405A1
公开(公告)日：2019-02-28
申请号：US15683162
申请日：2017-08-22
发明人： Ligang Zhang , Xiaofeng Mao
摘要： A system and method for detecting a road impact event and for diagnosing abnormalities in chassis components. The method includes receiving, by an electronic controller of a vehicle, a plurality of pairs of pulse counts and timestamps. The method also includes determining a first value corresponding to a first delta in timestamp per pulse count change. The method also includes determining whether a road impact has occurred based on a comparison between the first value and the second value. The method also includes transmitting an indication that a road impact has occurred, if a road impact has been determined to have occurred. The method also includes diagnosing whether an abnormality is occurring in a chassis component.
-
公开(公告)号：US20190011013A1
公开(公告)日：2019-01-10
申请号：US15644052
申请日：2017-07-07
发明人： Scott C. Mrdeza , Xiaofeng Mao , Hai Xu , Jeffrey N. Heaton
IPC分类号： F16F15/16 , B60K17/22 , F16F15/124 , F16F15/167 , F16F15/126 , F16F7/108 , F16F7/10
摘要： A system includes a vibration damper coupled for rotation with a rotating body. The vibration damper includes one or more fluid pockets. A reactive fluid is arranged in the one or more fluid pockets. The reactive fluid is configured to undergo a property change upon being exposed to a selected force. A force producing mechanism is fixedly mounted relative to the vibration damper, the force producing mechanism being operable to selectively produce the selected force.
-
公开(公告)号：US10029669B2
公开(公告)日：2018-07-24
申请号：US14942035
申请日：2015-11-16
发明人： Xiaofeng Mao , Thomas A. Klingler , Eric E. Krueger , William R. Cawthorne , R. Travis Schwenke , Scott C. Mrdeza
IPC分类号： B60W20/10 , B60K6/40 , B60K6/52 , B60W10/06 , B60W10/08 , B60W10/26 , B60W30/02 , B60W30/18 , B60W20/00
摘要： A powertrain includes a propulsion system having first and second torque sources, and first and second drive axles respectively connected to and independently driven by the first and second torque sources. A permissible range of torque contribution from the torque sources to the respective first and second drive axles is defined by a component torque window. The powertrain includes sensors for detecting a dynamic driving maneuver of a vehicle having the powertrain. A controller executes a method to adjust a size and/or orientation of a chassis torque window during the detected dynamic driving maneuver, determine an optimally efficient axle torque operating point that falls on a torque line within the component torque window in proximity to the chassis torque window, and command the torque contribution via transmission of torque control signals to the first and second torque sources to achieve the optimally efficient axle torque operating point.
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.018 秒)
