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    • 2. 发明授权
    • Vehicle steering control system
    • 车辆转向控制系统
    • US5845222A
    • 1998-12-01
    • US525845
    • 1995-09-08
    • Yorihisa YamamotoYutaka NishiTakashi NishimoriHiroyuki TokunagaHideki Machino
    • Yorihisa YamamotoYutaka NishiTakashi NishimoriHiroyuki TokunagaHideki Machino
    • B62D6/00B62D5/04B62D6/04G06G7/70
    • B62D5/0472B62D6/003
    • In a vehicle steering control system, an actuating torque is applied to steerable wheels according to a steering torque applied to a steering wheel in a conventional manner, and an additional actuating torque is applied to the steering wheel by an electric motor according to lateral dynamic conditions of the vehicle so as to control the lateral stability of the vehicle even in the presence of external interferences such as crosswind. Such external interferences are detected as a lateral dynamic condition of the vehicle such as the yaw rate of the vehicle, and the steering control system produces a steering reaction which counteracts such a lateral dynamic condition by applying the additional actuating torque to the steerable wheels so that the vehicle may maintain a straight course in spite of such external interferences without requiring any intentional efforts by the vehicle operator. A torque steer arising from the drive force applied to power driven steerable wheels can be also controlled as one form of external disturbances. In particular, by amplifying the steering reaction torque when the drive force is great, it is possible to favorably control the influences of a torque steer under any operation conditions.
    • 在车辆转向控制系统中,根据以常规方式施加到方向盘的转向转矩,将致动扭矩施加到可转向车轮,并且通过电动机根据横向动态条件向方向盘施加附加的致动转矩 以便即使在诸如侧风等外部干扰的情况下也可以控制车辆的横向稳定性。 这种外部干扰被检测为车辆的横向动态条件,例如车辆的横摆角速度,并且转向控制系统产生转向反作用力,该转向反作用力通过向可转向车轮施加额外的致动转矩来抵消这种横向动态状态,使得 尽管有这种外部干扰,车辆可能保持直线航向,而不需要车辆操作者的任何有意的努力。 施加到动力转向轮的驱动力产生的扭矩转向器也可以被控制为一种形式的外部干扰。 特别地,通过在驱动力大时放大转向反作用转矩,可以有利地控制转矩转矩在任何操作条件下的影响。
    • 3. 发明授权
    • Vehicle steering control system
    • 车辆转向控制系统
    • US5703775A
    • 1997-12-30
    • US463969
    • 1995-06-05
    • Yorihisa YamamotoYutaka NishiTakashi NishimoriHiroyuki TokunagaHideki Machino
    • Yorihisa YamamotoYutaka NishiTakashi NishimoriHiroyuki TokunagaHideki Machino
    • B62D5/04B62D6/04B60K41/00
    • B62D5/046B62D6/04
    • In a vehicle steering control system, an actuating torque is applied to steerable wheels according to a steering torque applied to a steering wheel in a conventional manner, and an additional actuating torque is applied to the steering wheel by an electric motor according to lateral dynamic conditions of the vehicle so as to control the lateral stability of the vehicle even in the presence of external interferences such as crosswind. Such external interferences are detected as a lateral dynamic condition of the vehicle such as the yaw rate of the vehicle, and the steering control system produces a steering reaction which counteracts such a lateral dynamic condition by applying the additional actuating torque to the steerable wheels so that the vehicle may maintain a straight course in spite of such external interferences without requiring any intentional efforts by the vehicle operator. By representing the vehicle with a first-order delay transfer function in regards to its lateral dynamic response for each given steering input, the vehicle operator can handle the vehicle without encountering any substantial resistance even when the steering wheel is turned briskly or at high speed.
    • 在车辆转向控制系统中,根据以常规方式施加到方向盘的转向转矩,将致动扭矩施加到可转向车轮,并且通过电动机根据横向动态条件向方向盘施加附加的致动转矩 以便即使在诸如侧风等外部干扰的情况下也可以控制车辆的横向稳定性。 这种外部干扰被检测为车辆的横向动态条件,例如车辆的横摆角速度,并且转向控制系统产生转向反作用力,该转向反作用力通过向可转向车轮施加额外的致动转矩来抵消这种横向动态状态,使得 尽管有这种外部干扰,车辆可能保持直线航向,而不需要车辆操作者的任何有意的努力。 通过以对于每个给定的转向输入的横向动态响应来表示具有一阶延迟传递函数的车辆,即使当方向盘快速或高速转动时,车辆操作者也可以处理车辆而不会遇到任何实质阻力。
    • 7. 发明授权
    • Data storage apparatus
    • 数据存储装置
    • US06885979B2
    • 2005-04-26
    • US10150009
    • 2002-05-20
    • Masatoshi NishinaHideki Machino
    • Masatoshi NishinaHideki Machino
    • G01D9/00G06F15/00G06F17/40
    • G01D9/005
    • A data storage apparatus includes a sampling device for sampling data in a predetermined cycle, and a storage device for storing a plurality of items of the data sampled by said sampling device. The data storage apparatus also includes an updating device for updating the plurality of items of the data stored in said storage device to respective ones of the plurality of items of the data, which were sampled at later times than the plurality of items of the data were stored, in respective predetermined updating cycles which are shorter than the updating cycles of the plurality of items of the data which were sampled at respective earlier times.
    • 数据存储装置包括用于以预定周期对数据进行采样的采样装置和用于存储由所述采样装置采样的多个数据项的存储装置。 数据存储装置还包括更新装置,用于将存储在所述存储装置中的数据的多个项目更新为多个数据项中的多个项目,这些数据在稍​​后时间比多个数据项目被抽样 在相应的预定更新周期中存储,其比在较早时间被采样的多个数据项的更新周期短。
    • 8. 发明授权
    • Vehicle steering control system
    • 车辆转向控制系统
    • US6108599A
    • 2000-08-22
    • US525844
    • 1995-09-08
    • Yorihisa YamamotoYutaka NishiTakashi NishimoriHiroyuki TokunagaHideki Machino
    • Yorihisa YamamotoYutaka NishiTakashi NishimoriHiroyuki TokunagaHideki Machino
    • B62D5/04B62D6/00G06F7/00
    • B62D6/00
    • In a vehicle steering control system, a manual steering input is assisted by a powered actuating steering torque which is given by K(.gamma.-t.sub.d .multidot.d .gamma./dt), where y is a detected yaw rate, K and t.sub.d are coefficients which depend on a vehicle speed, and d/dt denotes a time derivative. The detected yaw rate contributes to reducing the yaw rate of the vehicle. In particular, the coefficient t.sub.d is positive in value in a low speed range, and substantially linearly decreases with the vehicle speed, becoming negative at a certain intermediate vehicle speed. Thus, in a high speed range, when the vehicle is steered in one direction either by external disturbances or by a manual steering input, the detected yaw rate and the change rate of the yaw rate both contribute to the reduction of the yaw rate. However, in a low speed range, when the vehicle is steered in one direction, the detected yaw rate contributes to the reduction of the yaw rate but the change rate of the yaw rate contributes to the increase of the yaw rate. Thus, in a high speed range, the vehicle is made highly immune against external disturbances and the effort required for the manual steering of the vehicle is increased with the increase in the change rate of the yaw rate. Conversely, in a low speed range, the stability of the vehicle is of no concern, and the effort required for the manual steering of the vehicle is decreased with the increase in the change rate of the yaw rate.
    • 在车辆转向控制系统中,手动转向输入由由K(γ-DTXDγ/ dt)给出的动力执行转向转矩辅助,其中y是检测到的横摆率,K和td是依赖于 车速,d / dt表示时间导数。 检测到的横摆率有助于降低车辆的横摆角速度。 特别地,系数td在低速范围内的值为正值,并且随着车速大致线性地减小,在某一中间车速下变为负值。 因此,在高速范围内,当车辆通过外部干扰或手动转向输入在一个方向转向时,所检测到的横摆率和偏航率的变化率都有助于减小偏航率。 然而,在低速范围内,当车辆沿一个方向转向时,检测到的横摆率有助于降低横摆率,但偏航率的变化率有助于偏航率的增加。 因此,在高速范围内,使车辆高度免受外部干扰的影响,随着横摆率的变化率的增加,车辆的手动转向所需的努力也增加。 相反,在低速范围内,车辆的稳定性是不必要的,车辆的手动转向所需的努力随着偏航率的变化率的增加而降低。
    • 9. 发明授权
    • Vehicle steering control system
    • 车辆转向控制系统
    • US5774819A
    • 1998-06-30
    • US485484
    • 1995-06-07
    • Yorihisa YamamotoYutaka NishiTakashi NishimoriHiroyuki TokunagaHideki Machino
    • Yorihisa YamamotoYutaka NishiTakashi NishimoriHiroyuki TokunagaHideki Machino
    • B62D6/00B62D5/04B62D6/04B62D101/00B62D111/00B62D113/00B62D117/00B62D119/00B62D137/00
    • B62D6/003B62D6/008
    • In a vehicle steering control system, an actuating torque is applied to steerable wheels according to a steering torque applied to a steering wheel in a conventional manner, and an additional actuating torque is applied to the steering wheel by an electric motor according to lateral dynamic conditions of the vehicle so as to control the lateral stability of the vehicle even in the presence of external interferences such as crosswind. Such external interferences are detected as a lateral dynamic condition of the vehicle such as the yaw rate of the vehicle, and the steering control system produces a steering reaction which counteracts such a lateral dynamic condition by applying the additional actuating torque to the steerable wheels so that the vehicle may maintain a straight course in spite of such external interferences without requiring any intentional efforts by the vehicle operator. In particular, by suppressing the additional actuating torque in an understeer condition, the handling of the vehicle can be improved.
    • 在车辆转向控制系统中,根据以常规方式施加到方向盘的转向转矩,将致动扭矩施加到可转向车轮,并且通过电动机根据横向动态条件向方向盘施加附加的致动转矩 以便即使在诸如侧风等外部干扰的情况下也可以控制车辆的横向稳定性。 这种外部干扰被检测为车辆的横向动态条件,例如车辆的横摆角速度,并且转向控制系统产生转向反作用力,该转向反作用力通过向可转向车轮施加额外的致动转矩来抵消这种横向动态状态,使得 尽管有这种外部干扰,车辆可能保持直线航向,而不需要车辆操作者的任何有意的努力。 特别地,通过在不足转向条件下抑制附加的动作转矩,能够提高车辆的搬运。