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    • 2. 发明授权
    • Vehicle steering control system
    • 车辆转向控制系统
    • US5251135A
    • 1993-10-05
    • US764728
    • 1991-09-24
    • Mitsuya SerizawaYorihisa Yamamoto
    • Mitsuya SerizawaYorihisa Yamamoto
    • B62D6/00B62D5/00B62D5/04B62D6/04B62D7/15B62D101/00B62D113/00B62D117/00B62D119/00B62D131/00B62D137/00
    • B62D6/003B62D5/001B62D6/002
    • In a "steer-by-wire" vehicle steering control system which steers steerable wheels with a powered actuator according to an input signal obtained from a sensor associated with a steering wheel, to the end of achieving an optimum vehicle response to a steering input, a compensatory transfer function is introduced between the steering wheel and the powered steering actuator. The compensatory transfer function can be obtained by suitable manipulation of the transfer functions of the hardware involved and a desired overall transfer function. The frequency domain compensatory transfer function is transformed into a time-domain input-output relationship, and the steering mechanism is actuated accordingly as a real time operation. By suitable selection of the desired overall transfer function, it is possible to achieve a vehicle response both stable and favorable.
    • 在“线控转向”车辆转向控制系统中,根据从与方向盘相关联的传感器获得的输入信号,通过动力传动装置转向可转向轮,直至达到对转向输入的最佳车辆响应, 在方向盘和动力转向致动器之间引入补偿传递函数。 补偿传递函数可以通过适当地操纵所涉及的硬件的传递函数和期望的总体传递函数来获得。 频域补偿传递函数被转换为时域输入输出关系,并且转向机构作为实时操作相应地被致动。 通过适当地选择所需的整体传递函数,可以实现稳定和有利的车辆响应。
    • 4. 发明授权
    • Vehicle steering system
    • 车辆转向系统
    • US5481457A
    • 1996-01-02
    • US218116
    • 1994-03-25
    • Yorihisa YamamotoYutaka NishiTakashi NishimoriHiroyuki Tokunaga
    • Yorihisa YamamotoYutaka NishiTakashi NishimoriHiroyuki Tokunaga
    • B62D6/00B62D5/04B62D6/04B62D101/00B62D111/00B62D113/00B62D117/00B62D137/00
    • B62D5/0463B62D6/04
    • Provided is a vehicle steering system which can substantially stabilize the lateral dynamic behavior of a vehicle with a simple control logic over the entire range of the vehicle speed. A steering torque proportional to a yaw rate and/or a lateral acceleration of the vehicle is applied to the steerable wheels to counteract a lateral deviation of the vehicle. To avoid the oscillatory or overshooting behavior of the control system, a damping torque is applied to the steering wheel. Thus, the counteracting steering torque is given as a mathematical function including a sum of a first term consisting of a product of a yaw rate and/or the lateral acceleration of the vehicle and a first coefficient, and a second term consisting of a product of an angular speed of the steering wheel and a second coefficient. In particular, the first coefficient and second coefficient are variable in a mutually proportional relationship so that the optimum selection of the first and second conditions can be done without any complication.
    • 提供一种车辆转向系统,其能够在车辆速度的整个范围上以简单的控制逻辑基本上稳定车辆的横向动态特性。 与车辆的偏航率和/或横向加速度成比例的转向扭矩被施加到可转向轮以抵消车辆的横向偏差。 为了避免控制系统的振荡或过冲行为,向方向盘施加阻尼扭矩。 因此,反作用转向扭矩被给出为数学函数,其包括由横摆率和/或车辆的横向加速度的乘积和第一系数组成的第一项的和和由第一项组成的第二项, 方向盘的角速度和第二系数。 特别地,第一系数和第二系数可以相互成比例的关系变化,从而可以在没有任何复杂性的情况下进行第一和第二条件的最佳选择。
    • 8. 发明授权
    • Method for controlling stepless automatic transmission and apparatus
therefor
    • 无级自动变速器控制方法及其设备
    • US4976170A
    • 1990-12-11
    • US230840
    • 1988-08-10
    • Kiyotaka HayashiEtsumi HandaYorihisa YamamotoHiroshi Tanaka
    • Kiyotaka HayashiEtsumi HandaYorihisa YamamotoHiroshi Tanaka
    • B62M9/08B60W10/06F16H59/06F16H59/14F16H61/02F16H61/21F16H61/66F16H61/662F16H63/40F16H63/50
    • F16H61/66B60W10/04B60W10/101B60W30/1819F16H61/66259F16H2061/6611F16H59/141Y10S477/905Y10T477/623Y10T477/6242Y10T477/62423
    • A method for controlling a stepless automatic transmission of a vehicle and an apparatus therefore automatically control the transmission ratio according to the change with respect to time of a throttle aperture and a driving condition of the vehicle. A change with respect to time of the throttle aperture is taken into account in determining the objective engine speed and the transmission ratio. An apparatus includes a throttle sensor for sensing a change with respect to time of the throttle aperture, a first allocator for allocating an objective engine speed in a condition that the change with respect to time of the throttle aperture is within a prescribed range, a second allocator for allocating an objective engine speed in a condition that the throttle aperture is opened more rapidly than a first prescribed value, a third allocator for allocating an objective engine speed in a condition that the throttle aperture is closed more rapidly than a second prescribed value, and a transmission controller for controlling a transmission ratio of the stepless automatic transmission so that an actual engine speed coincides with the objective engine speed. A method includes the steps of sensing a change with respect to time of a throttle aperture, allocating an objective engine speed according to the change with respect to time of the throttle aperture, and controlling a transmission ratio of the stepless automatic transmission so that an actual engine speed coincides with the objective engine speed.
    • 因此,用于控制车辆的无级自动变速器和装置的方法根据相对于节气门孔的时间和车辆的行驶状态的变化自动控制变速比。 在确定目标发动机转速和传动比时,考虑到节流孔的时间变化。 一种装置包括用于感测相对于节流孔的时间的变化的节气门传感器,用于在相对于节气门孔的时间的变化在规定范围内的条件下分配目标发动机转速的第一分配器, 分配器,用于在节气门开度比第一规定值更快地打开的条件下分配目标发动机转速;第三分配器,用于在节气门开度比第二规定值更快地闭合的条件下分配目标发动机转速; 以及变速器控制器,用于控制无级自动变速器的变速比,使得实际发动机转速与目标发动机转速一致。 一种方法包括以下步骤:感测相对于节流孔的时间的变化,根据相对于节流孔的时间的变化分配目标发动机转速,以及控制无级自动变速器的变速比,使得实际 发动机转速与目标发动机转速一致。