Auxiliary steering system for wheeled vehicle
    1.
    发明授权
    Auxiliary steering system for wheeled vehicle 失效
    轮式车辅助转向系统

    公开(公告)号:US4878557A

    公开(公告)日:1989-11-07

    申请号:US318470

    申请日:1989-02-28

    CPC分类号: G05D1/0891 B62D7/159

    摘要: In addition to a conventional steering system for steering a vehicle through the front wheels in accordance with an angular displacement of the steering wheel, the vehicle is equipped with a negative feedback steering control system which steers the vehicle through the front or rear wheels in accordance with an instantaneous yaw rate of the vehicle. The feedback system has a vehicle behavior sensor for sensing the yaw rate, and an control circuit which determines an actual quantity which is equal to the yaw rate or a linear combination of the yaw rate and the time derivative of the yaw rate and a reference quantity which is a function of the angular displacement and the vehicle speed, so designed as to be approximately equal to the yaw rate if there is no disturbance. The control circuit produces a feedback signal proportional to a difference between the actual quantity multiplied by a first coefficient and the reference quantity multipled by a second coefficient. In response to the feedback signal, an actuator corrects the direction of the front or rear wheels in such a direction as to reduce the yaw rate. A lateral acceleration of the vehicle may be used in place of the yaw rate.

    摘要翻译: 除了根据方向盘的角位移通过前轮转向车辆的常规转向系统之外,车辆配备有负反馈转向控制系统,其通过前轮或后轮转向车辆,根据 车辆的瞬时偏航率。 反馈系统具有用于感测偏航率的车辆行为传感器,以及控制电路,其确定等于偏航率的偏航率或偏航率与横摆率的时间导数的线性组合的实际量,以及参考量 其是角位移和车速的函数,如果没有干扰,则被设计为近似等于横摆率。 控制电路产生与实际量乘以第一系数和乘以第二系数的参考量之间的差成比例的反馈信号。 响应于反馈信号,致动器沿着减小横摆率的方向校正前轮或后轮的方向。 可以使用车辆的横向加速度来代替偏航率。

    Steering control system for wheeled vehicle
    2.
    发明授权
    Steering control system for wheeled vehicle 失效
    轮式车辆转向控制系统

    公开(公告)号:US4666013A

    公开(公告)日:1987-05-19

    申请号:US695478

    申请日:1985-01-28

    摘要: A wheeled vehicle is equipped with a feedforward steering control system which steers the vehicle through front or rear road wheels in accordance with a driver's steering input such as an angular displacement of a steering wheel, and a negative feedback system which senses a turning behavior of the vehicle such as a yaw rate or a lateral acceleration, and steers the vehicle through the front or rear wheels in such a negative direction as to reduce the turning behavior. The feedforward system may control the angular direction of the front or rear wheels in accordance with a linear combination of the steering input and the time derivative of the steering input, or may control the angular directions of both of the front and rear wheels in accordance with different transfer functions between the steering input and the front and rear wheel angles. The negative feedback system is combined with the feedforward system in various ways to provide desired characteristics of the turning behavior. The negative feedback quantity determined by the negative feedback system may be proportional to the sensed turning behavior, or may be determined in accordance with the difference between the sensed turning behavior, and the reference turning behavior calculated from the vehicle speed and steering input.

    摘要翻译: 轮式车辆配备有前馈转向控制系统,其根据驾驶员的转向输入(例如方向盘的角位移)和负反馈系统,通过前车轮或后车轮转向车辆,以及负反馈系统,其感测车轮的转向行为 车辆,例如偏航率或横向加速度,并且以如此减小转弯行为的方向使车辆通过前轮或后轮。 前馈系统可以根据转向输入和转向输入的时间导数的线性组合来控制前轮或后轮的角度方向,或者可以根据转向输入的时间导数来控制前轮和后轮的角度方向 转向输入与前轮和后轮之间的转换功能不同。 负反馈系统与前馈系统以各种方式结合,以提供所需的转向特性。 由负反馈系统确定的负反馈量可以与感测到的转向行为成比例,或者可以根据感测到的转向行为与根据车速和转向输入计算的参考转弯行为之间的差来确定。

    Four-wheel steering control system for vehicle
    4.
    发明授权
    Four-wheel steering control system for vehicle 失效
    车辆四轮转向控制系统

    公开(公告)号:US4705131A

    公开(公告)日:1987-11-10

    申请号:US695345

    申请日:1985-01-28

    摘要: A vehicle steering control system for steering both front and rear wheels is so arranged that a transfer function between a driver's steering input and a front wheel steering angle, and a transfer function between the steering input and a rear wheel steering angle are differentiated from each other so as to obtain an optimum cornering characteristic of the vehicle. The system has a steering input sensor, a vehicle speed sensor, means for determining the transfer function for the front wheels from a steering frequency and a vehicle speed, means for determining the transfer function of the rear wheels, a front wheel actuator for steering the front wheels, and a rear wheel actuator for steering the rear wheels. The means for determining the transfer function of the rear wheels may be an electronic circuit, or a hydraulic fluid flow restrictor such as an orifice, or a mechanical gearing.

    摘要翻译: 用于转向前轮和后轮的车辆转向控制系统被布置成使得驾驶员的转向输入和前轮转向角之间的传递函数以及转向输入和后轮转向角之间的传递函数彼此不同 以获得车辆的最佳转弯特性。 该系统具有转向输入传感器,车速传感器,用于从转向频率和车速确定前轮的传递功能的装置,用于确定后轮的传递功能的装置,用于转向的前轮致动器 前轮和用于转向后轮的后轮致动器。 用于确定后轮的传递功能的装置可以是电子电路或诸如孔的液压流体限流器或机械传动装置。

    Method of controlling vehicle
    5.
    发明授权
    Method of controlling vehicle 失效
    车辆控制方法

    公开(公告)号:US4705130A

    公开(公告)日:1987-11-10

    申请号:US695228

    申请日:1985-01-28

    CPC分类号: B62D6/007 B60C23/00 B62D7/159

    摘要: A method of controlling an automotive vehicle is disclosed whereby a steering characteristic of the vehicle is automatically adjustable to a feature of the driver's steering the vehicle. The feature of the driver's steering the vehicle is detected in terms of a driver's technique or habit in manipulating a steering wheel or a motion characteristic of the vehicle such as a yaw rate or a lateral acceleration resulting from a driver's manipulating the steering wheel. A pair of steerable road wheels, such as a pair of front road wheels, are steered through an angle which is proportioned to an angle through which the steering wheel is manually turned at a ratio which is variable with variation in the feature of the driver's steering the vehicle.

    摘要翻译: 公开了一种控制机动车辆的方法,其中车辆的转向特性可自动调节为驾驶员转向车辆的特征。 根据驾驶员在操纵方向盘或车辆的运动特性的技术或习惯来检测驾驶员驾驶车辆的特征,例如由驾驶员操纵方向盘导致的横摆率或横向加速度。 一对可转向的车轮(例如一对前轮)被转向与角度成比例的角度,通过该角度方向盘以可以随驾驶员转向器的特征的变化而变化的比例手动地转动 机动车。

    Rear wheel steering control for vehicle
    7.
    发明授权
    Rear wheel steering control for vehicle 失效
    车辆后轮转向控制

    公开(公告)号:US4625822A

    公开(公告)日:1986-12-02

    申请号:US703593

    申请日:1985-02-20

    CPC分类号: B62D7/159

    摘要: A rear wheel steering control system which determines a target rear wheel steering angle in accordance with a steering angle of front wheels of the vehicle and steers the rear wheels so that the rear wheel steering angle is maintained equal to the target rear wheel steering angle, and is arranged not to decrease the difference between the target angle and the actual rear wheel steering angle immediately to zero, but to decrease the difference gradually in accordance with a distance traveled by the vehicle, in order to prevent the rear wheels from being steered too much in a direction opposite to a steered direction of the front wheels especially when the vehicle speed is low, and thereby prevent the rear of the vehicle from bumping against an object lying alongside the vehicle.

    摘要翻译: 一种后轮转向控制系统,其根据车辆的前轮的转向角确定目标后轮转向角,并且使后轮转向,使得后轮转向角保持与目标后轮转向角相等,以及 被设置为不将目标角度和实际的后轮转向角之间的差减小到零,而是根据车辆行进的距离逐渐减小差距,以防止后轮转向太多 特别是当车速低时,与前轮的转向相反的方向,从而防止车辆的后部碰撞在车辆旁边的物体。

    Thin-film vapor deposition apparatus
    9.
    发明授权
    Thin-film vapor deposition apparatus 失效
    薄膜蒸镀装置

    公开(公告)号:US6022413A

    公开(公告)日:2000-02-08

    申请号:US664544

    申请日:1996-06-17

    摘要: A thin-film vapor deposition apparatus has a reaction chamber for holding therein a substrate in an atmosphere isolated from an ambient atmosphere. For depositing a thin film on the substrate, the temperature of an inner wall of the reaction chamber is adjusted to control the temperature of the atmosphere in the reaction chamber, and the temperature of the substrate is also adjusted independently of the temperature of the atmosphere in the reaction chamber, while the substrate is being rotated at a high speed in the reaction chamber. Reactant gases required to deposit a thin film on the substrate are ejected from a reactant gas elector head toward the substrate in the reaction chamber. Remaining and excessive gases are discharged out of the reaction chamber.

    摘要翻译: 薄膜蒸镀装置具有用于在与环境气氛隔离的气氛中保持基板的反应室。 为了在基板上沉积薄膜,调整反应室内壁的温度以控制反应室中的气氛的温度,并且基板的温度也独立于大气温度 反应室,同时基板在反应室中高速旋转。 在基板上沉积薄膜所需的反应物气体从反应气体选择器头向反应室内的基板喷出。 剩余的和过量的气体从反应室排出。

    Reactant gas ejector head
    10.
    发明授权
    Reactant gas ejector head 失效
    反应物气体喷射头

    公开(公告)号:US5950925A

    公开(公告)日:1999-09-14

    申请号:US948579

    申请日:1997-10-10

    摘要: A reactant gas ejector head enables a process gas mixture of a uniform concentration and composition to be delivered to the surface of a substrate in a stable and uniform thermodynamic state by preventing premature reactions to occur along the gas delivery route. The reactant gas ejector head comprises an ejection head body having a back plate and a nozzle plate for defining a gas mixing space therebetween. The nozzle plate has numerous gas ejection nozzles. A gas supply pipe is communicated with the ejection head body through a center region of the back plate so as to separately introduce at least two types of gaseous substances into the mixing space. Gas distribution passages are formed between the back plate and the nozzle plate in such a way as to guide the at least two types of gaseous substances from the gas supply pipe to be directed separately towards peripheral regions of the gas mixing space.

    摘要翻译: 反应物气体喷射头能够使均匀浓度和组成的工艺气体混合物通过防止沿气体输送路线发生过早反应而以稳定和均匀的热力学状态输送到基底表面。 反应物气体喷射头包括具有背板和用于限定其间的气体混合空间的喷嘴板的喷射头本体。 喷嘴板具有许多气体喷射喷嘴。 气体供给管通过背板的中心区域与喷射头本体连通,以将至少两种类型的气态物质分别引入混合空间。 在背板和喷嘴板之间形成气体分配通道,以将来自气体供给管的至少两种类型的气体物质引导到气体混合空间的周边区域。