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11. 发明授权

US5099938A Rear wheel steering apparatus for vehicles 失效
标题翻译：车辆后轮转向装置
公开(公告)号：US5099938A
公开(公告)日：1992-03-31
申请号：US603629
申请日：1990-10-25
申请人： Tsukasa Watanabe , Akiya Taneda
发明人： Tsukasa Watanabe , Akiya Taneda
IPC分类号： B62D6/00 , B62D7/14 , B62D7/15 , B62D101/00 , B62D113/00
CPC分类号： B62D7/1572
摘要： The invention is directed to an apparatus for steering rear wheels of a vehicle. A vehicle speed sensor detects a speed of the vehicle, and a steering angle sensor detects a steering angle of front wheels of the vehicle and provides a first steering signal. A control device is provided for receiving the first steering signal and providing a second steering signal representing a desired steering angle of rear wheels of the vehicle which is determined in response to the first steering signal. A drive device is arranged to receive the second steering signal and steer the rear wheels to reach the desired steering angle. Then, a limit mechanism is provided for reducing the range of variation of steering angle of the rear wheels steered by the drive device to a predetermined range when the vehicle speed exceeds a predetermined speed, or the steering angle of the front wheels is less than a predetermined angle. Accordingly, when the vehicle is traveling at high speed, or when the vehicle turns with a large turning radius, the steering angle of the rear wheels is prevented from being unnecessarily varied.
摘要翻译：本发明涉及一种用于转向车辆后轮的装置。车速传感器检测车辆的速度，转向角传感器检测车辆前轮的转向角并提供第一转向信号。提供控制装置用于接收第一转向信号并提供表示响应于第一转向信号确定的车辆后轮的期望转向角的第二转向信号。驱动装置被布置成接收第二转向信号并转向后轮以达到期望的转向角。然后，提供限制机构，用于当车速超过预定速度或者前轮的转向角小于一个预定速度时，将由驱动装置转向的后轮的转向角的变化范围减小到预定范围预定角度。因此，当车辆高速行驶时，或者当车辆以大的转弯半径转动时，防止后轮的转向角度被不必要地变化。

12. 发明授权

US5060743A Four-wheel steering system for automotive vehicles 失效
标题翻译：汽车四轮转向系统
公开(公告)号：US5060743A
公开(公告)日：1991-10-29
申请号：US372461
申请日：1989-06-28
申请人： Susumu Oda , Masami Aga , Takashi Kajiwara , Naoki Tajima, deceased
发明人： Susumu Oda , Masami Aga , Takashi Kajiwara , Naoki Tajima, deceased
IPC分类号： B62D7/14 , B62D7/15
CPC分类号： B62D7/1572
摘要： A four-wheel steering system for an automotive vehicle includes a front wheel steering mechanism operable in response to a steering effort applied thereto to steer a pair of dirigible front road wheels, a rear wheel steering mechanism arranged to steer a pair of dirigible rear road wheels in response to steerage of the front road wheels, and a control apparatus arranged to control the rear wheel steering mechanism in such a manner that the rear road wheels are retained in their neutral positions when the front road wheels are steered at an angle less than a predetermined small angle and that the rear road wheels are steered in an opposite direction relative to the front road wheels when the front road wheels are steered at a larger angle than the predetermined small angle. The control apparatus is further arranged to control the rear wheel steering mechanism in such a manner that a changing rate of the rear wheel steering angle per a unit steering angle of the front road wheels increases in accordance with an increase of the front wheel steering angle.
摘要翻译：一种用于机动车辆的四轮转向系统包括前轮转向机构，该前轮转向机构能够响应于施加到其上的转向力而操作以转向一对可拆卸的前轮，后轮转向机构，其布置成转向一对可弯曲的后轮响应于前轮的转向，以及控制装置，该控制装置被布置成控制后轮转向机构，使得当前轮被转向小于等于的角度时，后轮被保持在其中立位置预定的小角度，并且当前轮以比预定的小的角度更大的角度转向时，相对于前车轮，后车轮被转向相反的方向。该控制装置进一步设置成使后轮转向机构以前轮的单位转向角度的后轮转向角的变化率随着前轮舵角的增加而增大。

13. 发明授权

US5046572A Steering control system for vehicle 失效
标题翻译：车辆转向控制系统
公开(公告)号：US5046572A
公开(公告)日：1991-09-10
申请号：US513845
申请日：1990-04-24
申请人： Koichi Komatsu
发明人： Koichi Komatsu
IPC分类号： B62D7/14 , B62D5/07 , B62D7/15
CPC分类号： B62D7/1554 , B62D7/1572
摘要： A steering control system for a vehicle is provided. This system includes a front power cylinder which provides steering assistance for front wheels and a rear power cylinder which provides steering assistance for rear wheels. The system further includes a single hydraulic pump which provides a pressurized hydraulic fluid to the front and rear power cylinders and a flow dividing valve which controls a supply rate of the pressurized hydraulic fluid to the front and rear power cylinders based on vehicle speed to steer the front and rear wheels with a preselected steering angle relationship.
摘要翻译：提供一种用于车辆的转向控制系统。该系统包括为前轮提供转向辅助的前动力缸和为后轮提供转向辅助的后动力缸。该系统还包括单个液压泵，其向前后动力缸提供加压液压流体，以及分流阀，其基于车速控制加压液压流体对前后动力缸的供给速率，以转向前轮和后轮具有预选的转向角关系。

14. 发明授权

US4998201A Four wheel steering control system for vehicles 失效
标题翻译：车轮四轮转向控制系统
公开(公告)号：US4998201A
公开(公告)日：1991-03-05
申请号：US314874
申请日：1989-02-24
申请人： Kazunori Mori
发明人： Kazunori Mori
IPC分类号： B62D7/14 , B62D6/00 , B62D7/15 , B62D101/00 , B62D113/00
CPC分类号： B62D7/1572 , B62D7/159
摘要： A four wheel steering control system for a vehicle includes a steering wheel angle sensor, a vehicle speed sensor, and a controller for determining auxiliary front and rear wheel steer angles .delta..sub.f and .delta..sub.r with respect to a basic front wheel steer angle .delta..sub.o proportional to a steering wheel angle .theta. in accordance with the following transfer functions: ##EQU1## where s is a Laplace transform variable, and K.sub.f, K.sub.r, T.sub.f and T.sub.r are constant determined by the vehicle speed and the specifications of the vehicle.
摘要翻译：用于车辆的四轮转向控制系统包括方向盘角度传感器，车速传感器和用于确定辅助前轮和后轮转向角δf和delta r相对于基本前轮转向角δ成比例的控制器根据以下传递函数到方向盘角度θ：其中s是拉普拉斯变换变量，Kf，Kr，Tf和Tr由车辆速度和车辆规格确定。

15. 发明授权

US4941541A Device for distributing drive power in the drive train of a four wheel drive vehicle 失效
标题翻译：用于在四轮驱动车辆的传动系中分配驱动力的装置
公开(公告)号：US4941541A
公开(公告)日：1990-07-17
申请号：US254875
申请日：1988-10-07
申请人： Hideo Ito , Masatsugu Yokote
发明人： Hideo Ito , Masatsugu Yokote
IPC分类号： B60K17/34 , B60K23/08 , B62D7/15
CPC分类号： B60K23/0808 , B60K17/358 , B62D7/1572 , B62D7/159 , B60W2520/14
摘要： In order to improve the steering and handling characteristics of a four wheel drive vehicle wherein at least one of the front and rear sets of wheels are provided with an auxiliary steering device, the steering condition of the vehicle is sensed and in the event that the steering is such that yaw can be easily induced the amount of power which is distributed to the front wheels is decreased relative to the amount prior the instant steering condition being established and vice versa.

16. 发明授权

US4700960A Apparatus for controlling steer angle of rear wheels of vehicle 失效
标题翻译：用于控制车辆后轮转向角的装置
公开(公告)号：US4700960A
公开(公告)日：1987-10-20
申请号：US854412
申请日：1986-04-21
申请人： Kazuo Miki , Yasutaka Hayashi , Katsuhiko Fukui , Kazumasa Sumi
发明人： Kazuo Miki , Yasutaka Hayashi , Katsuhiko Fukui , Kazumasa Sumi
IPC分类号： B62D6/02 , B62D7/14 , B62D7/15 , B62D7/00
CPC分类号： B62D7/159 , B62D7/1572
摘要： A rear wheel steer angle controlling apparatus for vehicles having steerable front and rear wheels, adapted for controlling the steer angle or rear wheels in response to the operation of the steering wheel for steering the front wheels. The speed with which the steering wheel is turned is detected and compared with a reference value which varies in accordance with changes in a physical amount related to the vehicle velocity. When the speed of operation of the steering wheel is larger than the reference value, a rear wheel steer angle is formed in the counter direction to the direction of the front wheel steer angle, so that the response to the steering input for turning the vehicle is improved. Conversely, when the speed of operation of the steering wheel is smaller than the reference value, a rear wheel steer angle is formed in the same direction as the front wheel steer angle, thus enhancing the stability of the vehicle running straight.
摘要翻译：一种用于车辆的后轮转向角度控制装置，其具有可转向的前轮和后轮，适于响应于用于转向前轮的方向盘的操作来控制转向角或后轮。检测方向盘转动的速度，并与根据与车速相关的物理量的变化而变化的参考值进行比较。当方向盘的操作速度大于参考值时，在与前轮转向角方向相反的方向上形成后轮转向角，使得对转向车辆的转向输入的响应为改进。相反，当方向盘的操作速度小于参考值时，后轮转向角度形成在与前轮转向角相同的方向上，从而提高了直线行驶的稳定性。

17. 发明授权

US4657102A Four-wheel steering device for vehicle 失效
标题翻译：车辆四轮转向装置
公开(公告)号：US4657102A
公开(公告)日：1987-04-14
申请号：US821875
申请日：1986-01-27
申请人： Hirotaka Kanazawa , Teruhiko Takatani , Naoto Takata
发明人： Hirotaka Kanazawa , Teruhiko Takatani , Naoto Takata
IPC分类号： B62D7/15 , B62D5/06 , B62D3/06
CPC分类号： B62D7/1545 , B62D7/1572
摘要： In a four-wheeled vehicle, the rear wheels are turned as well as the front wheels in response to operation of the steering wheel. The rear wheel turning angle characteristics relative to the front wheel turning angle is changed according to the vehicle speed. In the low to high vehicle speed region, the rear wheel turning angle is increased with increase of the front wheel turning angle and the increasing rate is increased as the vehicle speed increases. In the very low vehicle speed region, the rear wheels are not turned until the front wheels are turned at least by a predetermined angle, and are turned in the direction opposite to the front wheels when the front wheels are turned by an angle larger than the predetermined angle. The rear wheel turning angle in the opposite direction is changed in proportion to the front wheel turning angle.
摘要翻译：在四轮车中，响应于方向盘的操作，后轮被转动以及前轮。相对于前轮转向角度的后轮转向角特性根据车速而变化。在低到高车速区域中，随着前轮转向角度的增加，后轮转向角度增加，并且随着车速的增加而增加速度。在非常低的车速区域中，后轮直到前轮至少旋转预定角度才转动，并且当前轮转动大于前轮的角度时，在与前轮相反的方向上转动后轮预定角度。相反方向的后轮转向角度与前轮转向角成比例地变化。

18. 发明授权

US06945350B2 Steering apparatus for turning multiple sets of steerable vehicle wheels 有权
标题翻译：用于转动多组可转向车轮的转向装置
公开(公告)号：US06945350B2
公开(公告)日：2005-09-20
申请号：US10228767
申请日：2002-08-27
申请人： William A. Szabela , Daniel E. Williams , Kenneth A. Sherwin
发明人： William A. Szabela , Daniel E. Williams , Kenneth A. Sherwin
IPC分类号： B62D5/09 , B62D7/14 , B62D7/15 , B62D5/04
CPC分类号： B62D5/092 , B62D7/148 , B62D7/1572
摘要： A steering apparatus (10) for turning steerable wheels of a vehicle having first and second sets (14 and 16) of steerable wheels comprises a first steering gear (22) actuatable, in response to rotation of a handwheel (110), to effect turning of the first set (14) of steerable wheels. The steering apparatus (10) also comprises second and third steering gears (24 and 26), each of which is independently actuatable to effect turning of the second set (16) of steerable wheels and thereby providing redundancy for turning of the second set (16) of steerable wheels. A sensor (112) senses a steering position of the first set (14) of steerable wheels and provides a steering signal indicative of the sensed steering position. A controller (114) receives the steering signal and, in response to the steering signal, controls actuation of the second and third steering gears (24 and 26).
摘要翻译：一种用于转向具有第一和第二组可转向轮组的车辆的转向轮的转向装置（10），包括响应于手轮（110）的旋转而致动的第一转向齿轮（22），以实现转向的第一组（14）可转向轮。转向装置（10）还包括第二和第三转向齿轮（24和26），每个转向装置独立地可致动以实现第二组（16）可转向轮的转动，从而为第二组（16）的转动提供冗余）可转向轮。传感器（112）感测第一组（14）可转向轮的转向位置，并提供指示感测到的转向位置的转向信号。控制器（114）接收转向信号，响应转向信号控制第二和第三转向齿轮（24和26）的致动。

19. 发明申请

US20050067212A1 Steering system for working truck 失效
标题翻译：工作车转向系统
公开(公告)号：US20050067212A1
公开(公告)日：2005-03-31
申请号：US10500656
申请日：2003-02-26
申请人： Tsukasa Toyooka , Makoto Sugaya , Makoto Matsushita , Kensuke Satou , Yuuji Nagashima
发明人： Tsukasa Toyooka , Makoto Sugaya , Makoto Matsushita , Kensuke Satou , Yuuji Nagashima
IPC分类号： B62D6/00 , B62D5/10 , B62D7/14 , B62D7/15 , B66F9/065 , B66F9/075 , B62D5/06
CPC分类号： B62D7/1572 , B62D7/1509 , B66F9/0655 , B66F9/07568
摘要： One of the mode lamps 38a, 38b and 38c of the mode indicator 38 corresponding to the current steering mode is turned on yellow and the other mode lamps are turned on green or turned off, thereby indicating whether front wheels 1, 1 and rear wheels 2, 2 are at neutral. A controller 39 does not operate a mode changing valve 24 even with an instruction outputted from a mode change switch 35 when the front and rear wheels are not at neutral, and operates, in response to an instruction outputted from the mode change switch 35, the mode changing valve 24 to establish a steering mode corresponding to the instruction when the front and rear wheels are at neutral. Also, the mode indicator 38 is controlled to always indicate, as the current steering mode, one corresponding to the steering mode actually established by the mode changing valve 24. With those features, in a working vehicle in which the mode of steering front and rear wheels can be changed over between two-wheel steering and four-wheel steering, a steering system having superior operability and high reliability can be provided.
摘要翻译：对应于当前转向模式的模式指示器38的模式灯38a，38b和38c中的一个被打开为黄色，其他模式灯被打开为绿色或关闭，从而指示前轮1,1和后轮2 ，2是中立的。即使当前轮和后轮不处于空档时，即使从模式切换开关35输出的指令，控制器39也不操作模式切换阀24，并且响应于从模式切换开关35输出的指令而操作模式切换阀24，模式切换阀24，以在前轮和后轮处于空档时建立与指令对应的转向模式。此外，模式指示器38被控制为总是指示与当前转向模式相对应的模式切换阀24实际建立的转向模式。通过这些特征，在其中转向前后方向可以在两轮转向和四轮转向之间切换车轮，可以提供具有优异的可操作性和高可靠性的转向系统。

20. 发明授权

US5194851A Steering controller 失效
标题翻译：转向控制器
公开(公告)号：US5194851A
公开(公告)日：1993-03-16
申请号：US658982
申请日：1991-02-21
申请人： Calvin J. Kraning , Jeffrey S. Milender
发明人： Calvin J. Kraning , Jeffrey S. Milender
IPC分类号： B62D7/15 , B62D15/02
CPC分类号： B62D7/1572 , B62D15/02 , B62D7/1509
摘要： The improved steering controller is of the type used to control the angular position of the rear wheels on a four-wheel-steer vehicle as a function of the angular position of the front, operator-steered wheels. The controller includes a computing section, a visual display of the alpha-numeric type and a visual indicator which provides a bar-like display having a number of individual "markers" arranged in a row. The apparent length of such bar-like display, which changes as markers are illuminated, apprises the vehicle operator of the approximate magnitude and direction of angular displacement of the rear wheels from the centered position. The alpha-numeric visual display indicates operational mode as well as "errors" used in troubleshooting diagnosis and repair. The controller also incorporates a "learn" feature whereby the threshold input power and coil operating current of the steering hydraulic valve are determined and stored in a memory section to provide more consistent valve operation and to reduce setup time. Matched or proportional steering is provided.
摘要翻译：改进的转向控制器是用于根据前轮操作者转向轮的角位置来控制四轮转向车上的后轮的角位置的类型。控制器包括计算部分，字母数字类型的视觉显示器和提供具有排列成一排的多个单独的“标记”的条形显示器的视觉指示器。随着标记被照亮而变化的这种棒状显示器的表观长度将车辆角度位移的近似大小和方向与中心位置相比较。字母数字视觉显示表示操作模式以及故障排除诊断和修复中的“错误”。该控制器还结合了“学习”功能，由此确定转向液压阀的阈值输入功率和线圈工作电流并存储在存储器部分中，以提供更一致的阀操作并减少建立时间。提供匹配或比例转向。

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