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1. 发明申请

US20180319440A1 ELECTROMECHANICAL POWER STEERING SYSTEM, METHOD FOR DETERMINING AN ABSOLUTE ANGLE OF ROTATION, AND METHOD FOR CALIBRATING A MEASURING DEVICE FOR MEASURING AN ABSOLUTE ANGLE OF ROTATION 审中-公开
公开(公告)号：US20180319440A1
公开(公告)日：2018-11-08
申请号：US15772322
申请日：2016-10-27
申请人： THYSSENKRUPP PRESTA AG , THYSSENKRUPP AG
发明人： Gernot ERNSTSON , Tivadar TOTH , Konstantin SCHWARZKOPF , Peter KNOLL , Sedat SEN
IPC分类号： B62D15/02 , B62D5/04
CPC分类号： B62D15/0235 , B62D5/0421 , B62D5/0457 , B62D15/0215
摘要： A device and a method may be used to determine a highly accurate absolute angle of rotation Xt of the rotational position of a rotatably supported steering shaft. Rotation of a rotor of an electric motor with a gearing with a gearing transmission factor K for power assistance may be coupled into rotation of the steering shaft. A rotational position of rotation of the rotor can be measured by means of a rotor position sensor and by using a number of revolutions of the rotor that have occurred. This value is used directly to determine the highly accurate absolute angle of rotation Xt of the steering shaft. Calibration methods involve determining initial values from which the counting of revolutions or the calculations occur.

2. 发明申请

US20180312196A1 MOTOR CONTROL APPARATUS AND METHOD OF MOTOR DRIVEN POWER STEERING SYSTEM 审中-公开
公开(公告)号：US20180312196A1
公开(公告)日：2018-11-01
申请号：US15963539
申请日：2018-04-26
申请人： HYUNDAI MOBIS CO., LTD.
发明人： Cheon Kyu KIM , Ji Hoon YOO
IPC分类号： B62D15/02 , B62D5/04 , B62D6/00 , H02P21/18 , H02P21/22
CPC分类号： B62D15/0235 , B62D5/046 , B62D5/0463 , B62D5/0484 , B62D6/001 , H02P21/18 , H02P21/22
摘要： A motor control apparatus of a motor driven power steering (MDPS) system may include: a steering logic controller configured to calculate a current command value for motor control, and transmit the current command value; a current measurement sensor configured to measure a current applied to the motor; and a controller configured to calculate a motor position increment based on the current command value received from the steering logic controller, the measured current value received from the current measurement sensor, and previously stored motor parameters, estimate a current motor position by integrating the calculated motor position increments, and control the motor using the estimated current motor position.

3. 发明申请

US20180201303A1 Control Device for Electric Power Steering Apparatus and Electric Power Steering Apparatus 审中-公开
公开(公告)号：US20180201303A1
公开(公告)日：2018-07-19
申请号：US15741041
申请日：2016-06-13
申请人： Hitachi Automotive Systems, Ltd.
发明人： Takafumi HARA , Toshiyuki AJIMA , Mitsuo SASAKI , Yoshitaka IWAJI , Shigehisa AOYAGI , Takumi HISAZUMI
IPC分类号： B62D5/04 , B62D15/02 , B62D6/10 , H02P6/12 , H02P6/16 , H02P6/10
CPC分类号： B62D5/049 , B62D5/04 , B62D5/0463 , B62D6/00 , B62D6/10 , B62D15/0235 , H02P6/10 , H02P6/12 , H02P6/16 , H02P6/182 , H02P27/08 , H02P2209/01
摘要： An object of the present invention is to provide an electric power steering apparatus capable of improving reliability of a drive device for a three-phase synchronous motor without increasing a cost of the drive device. A control device for controlling an electric power steering apparatus according to the present invention is a control device for controlling an electric power steering apparatus using a three-phase synchronous motor as a force assisting in a steering operation, includes: a rotational position estimation unit that estimates a position of a rotor of the three-phase synchronous motor on the basis of a neutral point potential or a virtual neutral point potential of the three-phase synchronous motor; and a command signal computing unit that computes a command signal to the three-phase synchronous motor on the basis of the position of the rotor estimated by the rotational position estimation unit.

4. 发明申请

US20180006590A1 CONTROL DEVICE FOR AC ROTARY MACHINE 审中-公开
公开(公告)号：US20180006590A1
公开(公告)日：2018-01-04
申请号：US15541601
申请日：2015-01-23
申请人： Mitsubishi Electric Corporation
发明人： Akira FURUKAWA
IPC分类号： H02P21/22 , H02P25/03 , H02P27/08 , B62D5/04 , H02P21/14 , B62D15/02
CPC分类号： H02P21/22 , B62D5/0463 , B62D5/0481 , B62D15/0235 , G01D5/145 , G01D5/24476 , H02P6/16 , H02P21/14 , H02P25/03 , H02P27/08
摘要： In a control device for an AC rotary machine, having an angle detector for detecting an electrical angle of the AC rotary machine, a detection error produced by the angle detector due to a noise magnetic field generated by a multi-phase alternating current flowing through an inverter connection unit is corrected using a correction signal having a phase and an amplitude that are determined in accordance with a relative positional relationship between the inverter connection unit and the angle detector and a current vector of the multi-phase alternating current, whereupon an inverter is controlled on the basis of the corrected electrical angle. As a result, a simple, low-cost control device for an AC rotary machine with which an angular position of a rotor can be detected with a high degree of precision is obtained.

5. 发明授权

US09815493B2 Electric power assisted steering systems 有权
公开(公告)号：US09815493B2
公开(公告)日：2017-11-14
申请号：US14354586
申请日：2012-10-29
申请人： Jaguar Land Rover Limited
发明人： Alex Bean , Paolo Pucci
IPC分类号： B62D15/02 , B62D6/10 , B62D6/00 , B62D5/04
CPC分类号： B62D6/10 , B62D1/16 , B62D5/0463 , B62D6/002 , B62D6/008 , B62D15/02 , B62D15/021 , B62D15/0215 , B62D15/0235
摘要： A vehicle comprising an electric power assist steering (EPAS) system, wherein the EPAS system is configured to receive a detected value of steering wheel angle and/or steering wheel angular velocity and wherein the EPAS system is configured to improve the accuracy of the detected value of steering wheel angle and/or steering wheel angular velocity by compensating for any one or more of an angular phasing of the joint between any two linked components of the steering mechanism and the effect on steering wheel angle of the deflection across a torque sensor at least substantially due to the stiffness of that torque sensor.

6. 发明申请

US20170137054A1 An Electric Power Assisted Steering System 审中-公开
公开(公告)号：US20170137054A1
公开(公告)日：2017-05-18
申请号：US15320389
申请日：2015-06-23
申请人： TRW Limited
发明人： James Owen Patrick Farrelly
IPC分类号： B62D5/04 , G01L5/22 , G01L25/00 , B62D15/02
CPC分类号： B62D5/049 , B62D5/0493 , B62D6/10 , B62D15/0215 , B62D15/0235 , B62D15/0245 , G01L3/102 , G01L5/22 , G01L5/221 , G01L25/003
摘要： A combined angular position and torque sensor assembly for use in an electric power assisted steering system comprises an input part for connection to an upper column shaft, an output part for connection to a lower column shaft, a torsion bar that interconnects the input shaft and the output shaft, a first and second upper column angular position sensing means that each produce at least one output signal that is dependent on the angular position of the upper column shaft; and a processing means which produces a first torque signal indicative of the torque carried by the torsion bar. The processing means further includes means for producing a first absolute angular position signal by processing the output signals of the first and secondary sensors in a first way and a second absolute angular position signal processing the output of the same two sensors in a different way, and further comprises a cross

7. 发明授权

US09573622B2 Rotational angle detecting device and electric power steering device using the same 有权
标题翻译：旋转角度检测装置及使用其的电动助力转向装置
公开(公告)号：US09573622B2
公开(公告)日：2017-02-21
申请号：US14631334
申请日：2015-02-25
申请人： DENSO CORPORATION
发明人： Toshihiro Fujita , Takaharu Kozawa , Takashi Suzuki
IPC分类号： B62D15/02 , B62D5/04
CPC分类号： B62D15/0235 , B62D5/0481 , B62D15/021
摘要： A rotational angle detecting device continues a portion of operation by electric power from a battery when an electric switch is off. The rotational angle detecting device includes a sensor, a first calculator, a second calculator and a communication portion. The sensor detects a detection value that is variable according to a rotation of a detection object. The first calculator starts calculating first rotational information associated with the rotation of the detection object based on the detection value when the electric switch is turned on. The first calculator stops calculating the first rotational information when the electric switch is turned off. The second calculator calculates second rotational information associated with the rotation of the detection object regardless of an on/off state of the electric switch, based on the detection value. The communication portion outputs the first rotational information and the second rotational information to a controller.
摘要翻译：当电开关断开时，旋转角检测装置通过来自电池的电力来继续操作的一部分。旋转角度检测装置包括传感器，第一计算器，第二计算器和通信部分。传感器检测根据检测对象的旋转而变化的检测值。当电开关接通时，第一计算器基于检测值开始计算与检测对象的旋转相关联的第一旋转信息。当电开关关闭时，第一计算器停止计算第一旋转信息。基于检测值，第二计算器计算与检测对象的旋转相关联的第二旋转信息，而不管电开关的接通/断开状态如何。通信部分将第一旋转信息和第二旋转信息输出到控制器。

8. 发明申请

US20170021862A1 STEERING WHEEL CONTROL APPARATUS 审中-公开
标题翻译：转向轮控制装置
公开(公告)号：US20170021862A1
公开(公告)日：2017-01-26
申请号：US15213748
申请日：2016-07-19
申请人： DENSO CORPORATION
发明人： Hisaya Akatsuka , Toshiki Matsumoto , Hisashi Iida
IPC分类号： B62D15/02 , B60W30/10 , B60W10/18 , B60W10/20 , B60W50/14
CPC分类号： B62D15/025 , B60W10/18 , B60W10/20 , B60W30/10 , B60W40/08 , B60W50/14 , B60W2050/146 , B60W2510/202 , B60W2520/06 , B60W2710/18 , B60W2710/202 , B62D15/0235
摘要： A steering wheel control apparatus for controlling driving of a steering wheel of a vehicle includes a steering wheel drive section that drives the steering wheel in accordance with a target value, a shock probability determination section that determines whether the steering wheel may apply a physical shock to a vehicle driver, and a steering wheel driving restriction section that restricts driving of the steering wheel by the steering wheel drive section to reduce the shock applied to the vehicle driver when the shock probability determination section determines that the steering wheel may apply the shock to the vehicle driver.
摘要翻译：用于控制车辆的方向盘驱动的方向盘控制装置包括：根据目标值驱动方向盘的方向盘驱动部，确定方向盘是否可以对物理冲击施加物理冲击的冲击概率判定部车辆驾驶员和方向盘驱动限制部分，当所述冲击概率确定部分确定所述方向盘可能对所述方向盘施加冲击时，所述方向盘驱动限制部分限制所述方向盘驱动部分的所述方向盘的驱动，以减少施加到所述车辆驾驶员的冲击车司机。

9. 发明授权

US09540036B2 Electronic control unit for electric power steering 有权
标题翻译：电动助力转向电子控制单元
公开(公告)号：US09540036B2
公开(公告)日：2017-01-10
申请号：US14576758
申请日：2014-12-19
申请人： NIDEC ELESYS CORPORATION
发明人： Kazuki Harada , Tokuji Tatewaki , Eiji Wada , Osamu Maeshima , Masatoshi Matsuzaki
IPC分类号： B62D5/04 , B62D15/02
CPC分类号： B62D5/049 , B62D15/021 , B62D15/0235
摘要： An electronic control apparatus configured to control electric power steering and provided integrally with an electric motor is electrically connected to an ignition switch and which assists a rotation operation of a steering column by rotation of the electric motor. A first magnetism detecting element configured to operate using power supplied via the ignition switch to output a first set of rotation angle signals of the electric motor. A second magnetism detecting element configured to operate continuously using continuously supplied power to output a second set of rotation angle signals of the electric motor. A controller configured or programmed to generate rotation angle information about the electric motor based on the first set of rotation angle signals and the second set of rotation angle signals outputted while the ignition switch is stopped and to calculate a position of a steering wheel from the generated rotation angle information.
摘要翻译：配置为控制电动助力转向并与电动机整体设置的电子控制装置电连接到点火开关，并且通过电动机的旋转有助于转向柱的旋转操作。第一磁检测元件，被配置为使用通过点火开关提供的电力进行操作，以输出电动机的第一组旋转角度信号。第二磁检测元件，被配置为使用连续供电的电力连续地操作，以输出电动机的第二组旋转角度信号。一种控制器，其被配置或编程为基于在所述点火开关停止时输出的所述第一组旋转角度信号和所述第二组旋转角度信号产生关于所述电动机的旋转角度信息，并且从所生成的所述旋转角度信号计算方向盘的位置旋转角度信息。

10. 发明申请

US20160362128A1 STEERING ANGLE DETECTING APPARATUS FOR VEHICLES AND ELECTRIC POWER STEERING APPARATUS EQUIPPED THEREWITH 有权
标题翻译：用于车辆的转向角检测装置及其配备的电动转向装置
公开(公告)号：US20160362128A1
公开(公告)日：2016-12-15
申请号：US15109566
申请日：2016-02-01
申请人： NSK LTD.
发明人： Takayoshi SUGAWARA , Ryo MINAKI , Hideki SAWADA
IPC分类号： B62D5/04 , G01B7/30 , B62D6/00
CPC分类号： B62D5/046 , B62D5/04 , B62D5/0481 , B62D6/00 , B62D15/0215 , B62D15/0235 , B62D15/0245 , G01B7/30 , G01B21/22
摘要： A steering angle detecting apparatus for vehicles includes a vernier calculating section that performs vernier calculation based on a steering shaft angle and a motor angle, a neutral period specifying section that specifies a neutral period including a neutral point based on a reference angle calculated by the vernier calculation in the vernier calculating section, and a neutral point specifying section that specifies the neutral point from the neutral period and a stored neutral point value, and outputs a steering angle the neutral point of which is specified.
摘要翻译：一种用于车辆的转向角检测装置，包括：游标计算部，其根据转向轴角度和电动机角度进行游标运算;空档期间指定部，根据所述游标计算出的基准角，游标计算部分中的计算，以及从中立期间指定中立点和存储的中性点值的中性点确定部，并输出其中性点被指定的转向角。

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