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公开(公告)号：US20230271577A1
公开(公告)日：2023-08-31
申请号：US18083416
申请日：2022-12-16
发明人： Joel E. Birsching
IPC分类号： B60R16/023 , B62D1/04 , B62D15/02 , B62D5/09 , B60W40/08
CPC分类号： B60R16/0232 , B62D1/04 , B62D15/021 , B62D5/091 , B60W40/08 , B60W2040/0881
摘要： A method includes receiving a handwheel angle signal, generating a handwheel speed signal and a handwheel acceleration signal, and synchronizing the handwheel speed signal and the handwheel acceleration signal. The method also includes delaying the handwheel angle signal, calculating a sum of the delayed handwheel angle signal and a phase value, converting the sum of the delayed handwheel angle signal and the phase value to radians, determining an offset correction value by calculating a sine function value of the converted sum of the operator torque estimation signal and the phase value, calculating a product of the offset correction value and a calibratable value of an offset mass magnitude, adjusting the operator torque estimation signal by adding the product and the calibratable value of an offset mass magnitude, and determining whether hands of an operator of the vehicle are on the handwheel based on the adjusted operator torque estimation signal.
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公开(公告)号：US09862411B2
公开(公告)日：2018-01-09
申请号：US14812221
申请日：2015-07-29
CPC分类号： B62D7/222 , B62D5/0472 , B62D5/06 , B62D5/0835
摘要： A control system and method for a hydraulic-power steering system of a vehicle including magnetic torque overlay (MTO) is provided. The control system and method minimize undesirable vibration in a handwheel of the vehicle as a result of disturbance in its front road wheels (e.g., road-wheel imbalance). In the control system and method, a base torque command is determined or generated. At least the base torque command is passed to a disturbance-rejection module. The disturbance-rejection module modifies the base torque command to minimize the vibration.
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公开(公告)号：US20170166249A1
公开(公告)日：2017-06-15
申请号：US15364695
申请日：2016-11-30
发明人： Joel E. Birsching
CPC分类号： B62D5/065 , B62D5/0835 , B62D5/09 , B62D5/24
摘要： Technical solutions for compensating for lash in a steering system are described. An example method includes determining a rack pressure value based on a driver torque value and a differential pressure across a rack of the steering system. The method also includes determining a compensation friction value based on a position of a handwheel of the steering system and a speed of a vehicle equipped with the steering system. The method also includes computing a pressure value based on the rack pressure value and the compensation friction value. The method also includes generating a torque command using the pressure value, the torque command being added to the driver assist torque for the steering system.
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公开(公告)号：US09471067B2
公开(公告)日：2016-10-18
申请号：US14528546
申请日：2014-10-30
发明人： Joel E. Birsching
CPC分类号： G05D16/20 , B62D5/062 , B62D5/065 , B62D5/09 , F15B19/002 , F15B2211/6313 , F15B2211/7053 , G01D18/004
摘要： A hydraulic steering system estimates a trim value from at least a backpressure sensed on a valve assembly in a steering gear. The system further applies the trim value to the pressure measurements of the valve assembly in the steering gear.
摘要翻译： 液压转向系统从至少在舵机上的阀组件上感测到的背压估计修剪值。 该系统还将修剪值应用于舵机中的阀组件的压力测量值。
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公开(公告)号：US20160124442A1
公开(公告)日：2016-05-05
申请号：US14528546
申请日：2014-10-30
发明人： Joel E. Birsching
CPC分类号： G05D16/20 , B62D5/062 , B62D5/065 , B62D5/09 , F15B19/002 , F15B2211/6313 , F15B2211/7053 , G01D18/004
摘要： A hydraulic steering system estimates a trim value from at least a backpressure sensed on a valve assembly in a steering gear. The system further applies the trim value to the pressure measurements of the valve assembly in the steering gear.
摘要翻译： 液压转向系统从至少在舵机上的阀组件上感测到的背压估计修剪值。 该系统还将修剪值应用于舵机中的阀组件的压力测量值。
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公开(公告)号：US20160107681A1
公开(公告)日：2016-04-21
申请号：US14516695
申请日：2014-10-17
CPC分类号： B62D5/065 , B62D5/0835 , B62D5/09 , B62D5/24
摘要： A steering system with magnetic torque overlay of a vehicle is provided. The system comprises a hydraulic valve and differential-pressure transducer that monitors pressure created by the valve due to torque exerted by a driver of the vehicle in various directions on a steering wheel thereof. The transducer is fastened to a recirculating ball steering gear. A magnetic actuator generates an output of torque required from the steering gear for a maneuver of the steering wheel and applies the torque to the valve independently of input by the driver. A permanent magnet is located proximate the actuator. A control module calculates an appropriate amount of electric current and sends it to the actuator to generate the output torque. The torque is added to or subtracted from the system in any of the directions independently of the driver input by the pressure-monitoring and inputs from the vehicle into the control module.
摘要翻译： 提供了一种具有车辆磁力矩重叠的转向系统。 该系统包括液压阀和差压传感器，其监测由于车辆的驾驶员在其方向盘上在各个方向施加的扭矩而由阀产生的压力。 传感器固定在循环球舵机上。 磁致动器产生用于方向盘操纵的来自舵机所需的扭矩的输出，并且将驱动器独立于输入施加扭矩给阀。 永磁体靠近致动器定位。 控制模块计算适当的电流量并将其发送到致动器以产生输出转矩。 通过压力监视和从车辆到控制模块的输入，扭矩被加到系统中或与任何方向相除的驱动器输入。
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公开(公告)号：US20160103034A1
公开(公告)日：2016-04-14
申请号：US14879176
申请日：2015-10-09
发明人： Jason A. Dutsky , Joel E. Birsching
IPC分类号： G01L19/14
CPC分类号： G01L19/143
摘要： A dual channel pressure sensor is provided. The pressure sensor includes a baseplate extending from a housing. The baseplate has a first end, a second end, and a body extending between the first end and the second end. The first end defining a first inlet port and the body defining a second inlet port
摘要翻译： 提供双通道压力传感器。 压力传感器包括从壳体延伸的底板。 底板具有第一端，第二端和在第一端和第二端之间延伸的本体。 第一端限定第一入口端口和限定第二入口的主体
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公开(公告)号：US20230174088A1
公开(公告)日：2023-06-08
申请号：US17592707
申请日：2022-02-04
发明人： Joel E. Birsching
CPC分类号： B60W50/12 , B60W40/09 , B60W2540/223 , B60W2540/229 , B60W2510/202
摘要： A method hands-on-wheel detection includes receiving a handwheel angle signal from a sensor associated with a handwheel of a vehicle and generating, based on a handwheel angle indicated by the handwheel angle signal, a handwheel speed signal and a handwheel acceleration signal. The method also includes synchronizing the handwheel speed signal and the handwheel acceleration signal by generating a delayed handwheel speed signal and a delayed handwheel acceleration signal. The method also includes generating an operator torque estimation signal based on, at least, the delayed handwheel speed signal and the delayed handwheel acceleration signal. The method also includes determining whether hands of an operator of the vehicle are on the handwheel based on the operator torque estimation signal.
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公开(公告)号：US11235801B2
公开(公告)日：2022-02-01
申请号：US16531927
申请日：2019-08-05
发明人： Joel E. Birsching
摘要： Technical solutions are described for generating a damping torque in a magnetic torque overlay (MTO) steering system. An example method includes generating a damping torque based on a vehicle speed value, a handwheel velocity value, and a differential pressure value. The method further includes detecting an off-road condition, and in response, computing an off-road damping torque signal based on one or more of the vehicle speed value, the handwheel velocity value, the differential pressure value, and a handwheel angle value. The method also includes scaling the damping torque by the off-road damping torque signal in response to detecting the off-road condition.
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公开(公告)号：US10784726B2
公开(公告)日：2020-09-22
申请号：US15928804
申请日：2018-03-22
发明人： David M. Kubiak , Joel E. Birsching
摘要： A method of manufacturing a magnetic pole piece includes molding a magnetic body having an outer wall and an inner wall extending between a first end and a second end, and a trim cap disposed at the first end. The method further includes fixing a non-magnetic isolator to the magnetic body between the outer wall and the inner wall and removing the trim cap.
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