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31. 发明授权

US07742858B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US07742858B2
公开(公告)日：2010-06-22
申请号：US11641846
申请日：2006-12-20
申请人： Terutaka Tamaizumi
发明人： Terutaka Tamaizumi
IPC分类号： B62D5/04
CPC分类号： B62D5/0466
摘要： An electric power steering apparatus including a steering torque detecting section configured to detect a steering torque applied to an operation member for steering a vehicle, a steering state judging section configured to determine whether forward stroke steering that steers the operating member away from a steering angle midpoint is performed, a motor controlling section configured to control the driving of an electric motor based on the steering torque detected by the steering torque detecting section, and a phase compensating section provided in the motor controlling section for performing phase compensation, such that, when the forward stroke steering is not performed according to the steering state judging section, a gain in a predetermined frequency band in frequency response characteristics of the phase compensation is lower than gains in frequency bands lower and higher than the predetermined frequency band, and is lower than a gain in the predetermined frequency band when the forward stroke steering is performed.
摘要翻译：一种电动助力转向装置，包括：转向转矩检测部，其被配置为检测施加到用于转向车辆的操作部件的转向转矩;转向状态判断部，被配置为确定是否将所述操作部件转向远离转向角中点的前进行程转向执行基于由转向转矩检测部检测到的转向转矩来控制电动机的驱动的电动机控制部以及设置在电动机控制部中进行相位补偿的相位补偿部，使得当根据转向状态判断部不进行前进行驶转向，相位补偿的频率响应特性中的预定频带的增益低于预定频带以下的频带的增益，低于预定频带的频带的增益当增益在预定频带时执行向前冲程转向。

32. 发明授权

US07586277B2 Electric power steering device 有权
标题翻译：电动助力转向装置
公开(公告)号：US07586277B2
公开(公告)日：2009-09-08
申请号：US10582931
申请日：2004-12-03
申请人： Hideyuki Kobayashi , Toru Sakaguchi , Takeshi Hara , Sakae Nejo
发明人： Hideyuki Kobayashi , Toru Sakaguchi , Takeshi Hara , Sakae Nejo
IPC分类号： H02P7/00
CPC分类号： B62D5/0466 , H02P7/29
摘要： An electric power steering device changes the discontinuous non-linear characteristics in the duty ratio of the PWM signal versus motor current generated during steering wheel handle return into linear characteristics to suppress noise and provides a smooth and natural feeling steering. The electric control circuit (13) provided a current reference value calculator (22A) to calculate Iref, a current controller (22B) to obtain Vref2, a compensation adder (25) to obtain a duty D1, and a current discontinuity compensator (24) in order to obtain a duty D2. A motor drive circuit (35) including an H bridge circuit whose upper stage FET (1) is driven by the duty D1, and whose lower stage FED (3) paired with the upper stage FET (1), is driven by the duty D2 to allow forming a continuous linear characteristic in the duty ratio of the PWM signal versus the motor current.
摘要翻译：电动助力转向装置将PWM信号的占空比与方向盘把手中产生的电动机电流的不连续非线性特性改变成线性特性，以抑制噪音并提供平稳自然的转向。电气控制电路（13）提供计算Iref的电流参考值计算器（22A），获得Vref2的电流控制器（22B），获得占空比D1的补偿加法器（25）和电流不连续补偿器（24）以获得责任D2。电动机驱动电路（35）由占空比D1驱动的上级FET（1）和与上级FET（1）配对的下级FED（3）的H级桥式电路由占空比D2 以允许在PWM信号与电动机电流的占空比中形成连续的线性特性。

33. 发明申请

US20090188744A1 Steering System and Method for Adapting Return Torque Relative to Hand Wheel Speed 有权
标题翻译：转向系统和适应手轮转速的回转力矩的方法
公开(公告)号：US20090188744A1
公开(公告)日：2009-07-30
申请号：US12354874
申请日：2009-01-16
申请人： Bertram Moeller
发明人： Bertram Moeller
IPC分类号： B62D5/04
CPC分类号： B62D5/0466
摘要： A method for generating a return torque signal in an electric servo steering system of a vehicle, including the steps of: determining a current steering wheel position; determining a current vehicle speed; generating a return torque signal as a function of the steering wheel position and the vehicle speed; determining a current speed of steering wheel rotation; determining a scaling factor dependent on the speed of steering wheel rotation; and multiplying the return torque signal by the scaling factor in order to obtain a modified return torque signal. Also, a servo steering system which is designed to carry out such a method.
摘要翻译：一种用于在车辆的电动伺服转向系统中产生返回转矩信号的方法，包括以下步骤：确定当前的方向盘位置; 确定当前车速; 产生作为方向盘位置和车辆速度的函数的返回扭矩信号; 确定方向盘旋转的当前速度; 确定取决于方向盘旋转速度的比例因子; 并将该返回转矩信号乘以比例因子，以获得修正的返回转矩信号。另外，设计用于执行这种方法的伺服转向系统。

34. 发明申请

US20090018726A1 ELECTRIC POWER STEERING APPARATUS AND METHOD FOR CONTROLLING SAME 有权
标题翻译：电动转向装置及其控制方法
公开(公告)号：US20090018726A1
公开(公告)日：2009-01-15
申请号：US12171607
申请日：2008-07-11
申请人： Takehiro SARUWATARI , Yasuhiro Kamatani
发明人： Takehiro SARUWATARI , Yasuhiro Kamatani
IPC分类号： B62D6/10
CPC分类号： B62D5/0466
摘要： In a control method for an electric power steering apparatus having a steering member, a steering mechanism, and a motor for assisting steering, a steering torque applied to a steering wheel is detected, frequency analysis is performed on the detected torque, and a determination is made as to whether or not a torque component having a frequency equal to or higher than a predetermined value is included in the result of the frequency analysis. When such a torque component is included in the frequency analysis result, a predetermined rotary torque is generated in a single direction.
摘要翻译：在具有用于辅助转向的转向构件，转向机构和电动机的电动助力转向装置的控制方法中，检测到施加到方向盘的转向转矩，对检测到的转矩执行频率分析，并且确定是在频率分析的结果中包括具有等于或高于预定值的频率的转矩分量是否包括在内。当在频率分析结果中包含这样的转矩分量时，在单个方向上产生预定的旋转扭矩。

35. 发明授权

US07472773B2 Electrically driven power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US07472773B2
公开(公告)日：2009-01-06
申请号：US11805654
申请日：2007-05-24
申请人： Toshihiro Fukuda , Shuji Endo , Hiroshi Eda , Osama Tatewaki , Kenichi Hayakawa , Hirotaka Hatano
发明人： Toshihiro Fukuda , Shuji Endo , Hiroshi Eda , Osama Tatewaki , Kenichi Hayakawa , Hirotaka Hatano
IPC分类号： B62D5/04
CPC分类号： B62D5/0472 , B62D5/0427 , B62D5/0448 , B62D5/0466 , F16C19/06 , F16C35/063 , F16C2326/24
摘要： An electrically driven power steering apparatus is structured such that a large impact on a rack shaft occurs upon an impingement of a steering stopper, and, even when an axial force acting on a ball bearing of a presser member becomes zero, a rotation of the presser member is hindered by caulking c at a thin plate member. Therefore, the presser member does not slacken, and a predetermined axial force can be given again to the ball bearing when the impact dissipates. The thus structured power steering apparatus exhibiting, though the cost is low, an excellent shockproof characteristic and capable of preventing the bearing from coming off a ball screw nut, can be provided.
摘要翻译：电动动力转向装置被构造成使得在转向挡块的撞击时对齿条轴产生大的冲击，并且即使当作用在压紧构件的滚珠轴承上的轴向力变为零时，压脚的旋转通过在薄板构件上铆接c阻碍构件。因此，压紧部件不松弛，并且当冲击消散时可以再次给予球轴承预定的轴向力。这样构成的动力转向装置虽然成本低，但能够提供优异的防震特性，能够防止轴承脱离滚珠丝杠螺母。

36. 发明申请

US20070114094A1 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US20070114094A1
公开(公告)日：2007-05-24
申请号：US11524671
申请日：2006-09-21
申请人： Terutaka Tamaizumi
发明人： Terutaka Tamaizumi
IPC分类号： B62D5/04
CPC分类号： B62D5/0466
摘要： In an electric power steering apparatus, a phase control characteristic for a signal corresponding to detected steering torque is changed according to the judgment whether the steering is in a return steering state or a feed steering state, so that a response of a variation of target output value of a motor for generating steering assist power to a variation of the detected steering torque decreases in the return steering state in comparison with that in the feed steering state. An output control characteristic of the motor is changed according to the judgment synchronously with the change of the phase control characteristic, so that a response of a variation of the output command value to a variation of deviation between the target output value and actual output value decreases in the return steering state in comparison with that in the feed steering state.
摘要翻译：在电动助力转向装置中，根据判定转向是处于返回转向状态还是进给转向状态的变化来改变与检测到的转向转矩对应的信号的相位控制特性，使得目标输出的变化的响应与在进给转向状态下相比，在返回转向状态下，用于产生转向辅助力的电动机的值与检测到的转向转矩的变化相比减小。电动机的输出控制特性根据相位控制特性的变化同步地进行判断而变化，使得输出指令值的变化对目标输出值与实际输出值的偏差变化的响应减小在返回转向状态下与进给转向状态相比。

37. 发明申请

US20070095598A1 Hydraulic steering system with a variable flow device 有权
标题翻译：具有可变流量装置的液压转向系统
公开(公告)号：US20070095598A1
公开(公告)日：2007-05-03
申请号：US11250860
申请日：2005-10-14
申请人： Daniel Williams
发明人： Daniel Williams
IPC分类号： B62D5/08
CPC分类号： B62D6/008 , B62D5/0466 , B62D5/064 , B62D5/065
摘要： An apparatus (10) for turning steerable wheels (12, 14) of a vehicle in response to turning of a steering wheel (18) of the vehicle. The apparatus includes a hydraulic power steering gear, which does not include a rotary valve responsive to a steering input generated by turning of a steering wheel (18). The hydraulic steering gear includes a first chamber (96) for holding hydraulic fluid and a second chamber (98) for holding hydraulic fluid. An increase in fluid pressure in one chamber acts to turn the steerable wheels (12, 14) of the vehicle in one direction and an increase in fluid pressure in the other chamber acts to turn the steerable wheels (12, 14) in a direction opposite the one direction. The apparatus (10) includes a variable flow mechanism (50) for supplying a flow of hydraulic fluid to the first and second chambers (96, 98), which flow varies in dependence upon at least one sensed vehicle condition.
摘要翻译：一种用于响应于车辆的方向盘（18）的转动而转向车辆的可转向轮（12,14）的装置（10）。该装置包括液压动力舵机，其不包括响应于通过转向方向盘（18）产生的转向输入的旋转阀。液压舵机包括用于保持液压流体的第一室（96）和用于保持液压流体的第二室（98）。一个室中的流体压力的增加用于使车辆的可转向轮（12,14）沿一个方向转动，并且另一个室中的流体压力的增加用于沿相反方向转动可转向轮（12,14）一个方向。设备（10）包括用于向第一和第二腔室（96,98）供应液压流体流的可变流动机构（50），该流量根据至少一个感测到的车辆状况而变化。

38. 发明申请

US20060235591A1 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US20060235591A1
公开(公告)日：2006-10-19
申请号：US11407005
申请日：2006-04-18
申请人： Terutaka Tamaizumi
发明人： Terutaka Tamaizumi
IPC分类号： B62D6/00
CPC分类号： B62D5/0466
摘要： The controller in an electric power steering apparatus stores the relationship between the steering torque and the basic assist torque in which the relationship is stored as assist characteristic, and stores the relationship between the steering angle correspondence value corresponding to the steering angle of the vehicle and the motor output correction value in which the relationship is stored as correction characteristic. The controller corrects the output of the motor, which is required in order to generate the basic assist torque, in accordance with the motor output correction value determined from the steering angle correspondence value and correction characteristic, in which the basic assist torque is determined from the steering torque and assist characteristic. The correction characteristic is set so that the denominator in the frequency transfer function (K1θp+K2θps+K3θps2)/(s2/ω02+2ζ0s/ω0+1) of the motor output correction value to the steering angle correspondence value has a term which includes the resonance angular frequency of the yaw motion of the vehicle, and a term which includes the damping ratio of the yaw motion of the vehicle.
摘要翻译：电动助力转向装置中的控制器存储转向转矩和存储关系的基本辅助转矩之间的关系作为辅助特性，并且存储与车辆的转向角相对应的转向角对应值与电机输出校正值，其中存储关系作为校正特性。根据从转向角对应值和校正特性确定的电动机输出校正值，控制器校正电动机的输出，以产生基本辅助转矩，其中基本辅助转矩从转向转矩和辅助特性。校正特性被设定为使得频率传递函数（K 1/2）中的分母在P + 其中S + K 3 电动机输出校正值与转向角度对应值之间的关系为“ 其包括车辆的偏航运动的共振角频率和包括车辆的偏航运动的阻尼比的项。

39. 发明申请

US20060231325A1 Electric power steering apparatus 有权
公开(公告)号：US20060231325A1
公开(公告)日：2006-10-19
申请号：US11407006
申请日：2006-04-18
申请人： Terutaka Tamaizumi
发明人： Terutaka Tamaizumi
IPC分类号： B62D5/04
CPC分类号： B62D5/0466
摘要： In an electric power steering apparatus, a steering torque is detected by a torque sensor, and a motor which generates steering assist power is controlled so that steering assist power is generated in accordance with basic assist torque which corresponds to the detected steering torque. The phase of the output signal of the torque sensor is caused to vary by a phase control element. The phase control characteristic of the phase control element is altered in accordance with the judgment results of a steering state judgment element as to whether the steering state is a return steering state or positive steering state, so that, in the frequency response characteristic of the output to input of the torque sensor, the gain at the higher frequency band where the frequency is greater than a set value is reduced in the return steering state in comparison to the positive steering state.

40. 发明授权

US06854559B2 Electric power steering controller 有权
标题翻译：电动助力转向控制器
公开(公告)号：US06854559B2
公开(公告)日：2005-02-15
申请号：US10685480
申请日：2003-10-16
申请人： Masahiko Kurishige , Hideyuki Tanaka , Noriyuki Inoue , Chiaki Fujimoto , Kazumichi Tsutsumi
发明人： Masahiko Kurishige , Hideyuki Tanaka , Noriyuki Inoue , Chiaki Fujimoto , Kazumichi Tsutsumi
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D111/00 , B62D113/00 , B62D119/00 , B62D137/00
CPC分类号： B62D5/0466 , B62D6/008
摘要： An electric motor controller for a steering device that can apply an appropriate steering force to a steering wheel according to running conditions. An electric power steering controller of the present invention includes a steering shaft reaction force torque sensor for detecting a reaction force torque of a steering system, a superimposed reaction force torque calculating unit for multiplying a steering angle detected by the steering angle sensor by a gain to calculate a superimposed reaction force torque in the return direction of the steering wheel, and a control unit for controlling the gain so that the superimposed reaction force torque is reduced when a reaction force torque of the steering system is increased and the superimposed reaction force torque is increased when a reaction force torque of the steering system is decreased.
摘要翻译：一种用于转向装置的电动机控制器，其可以根据运行条件向方向盘施加适当的转向力。本发明的电动助力转向控制装置包括：用于检测转向系统的反作用力转矩的转向轴反作用转矩传感器;叠加的反作用力转矩计算单元，用于将由转向角传感器检测到的转向角乘以增益; 计算方向盘的返回方向上的叠加的反作用力转矩;以及控制单元，用于控制增益，使得当转向系统的反作用力转矩增加时叠加的反作用力转矩减小，叠加的反作用力转矩为当转向系统的反作用力转矩减小时增加。

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