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1. 发明授权

US4783089A Air spring control system and method 失效
标题翻译：空气弹簧控制系统及方法
公开(公告)号：US4783089A
公开(公告)日：1988-11-08
申请号：US760141
申请日：1985-07-29
申请人： James M. Hamilton , Lonnie K. Woods , Michael W. Godwin
发明人： James M. Hamilton , Lonnie K. Woods , Michael W. Godwin
IPC分类号： B60G17/015 , B60G17/019 , G01G5/06 , G01G19/10 , B60G17/00
CPC分类号： G01G5/06 , B60G17/0155 , B60G17/01933 , G01G19/10 , B60G2204/111 , B60G2400/252 , B60G2401/00
摘要： A method and system are set forth for leveling a vehicle chassis supported on air springs. The system and method include a position switch at each air spring which is adapted to generate a signal when the spring is compressed to or beyond a desired length representing the desired level for the vehicle chassis. Based upon the duration of the signal over a time interval a duty cycle for the spring is established. If the duty cycle is below a desired valve or range of valves this indicates the chassis is too high and the system incrementally deflates the spring. If the duty cycle is above the desired valve or range of valves this indicates the chassis is too low and the spring is incremetally deflated. Accordingly, leveling can take place when the vehicle is in motion.
摘要翻译：提出了一种用于使支撑在空气弹簧上的车辆底盘整平的方法和系统。该系统和方法包括在每个空气弹簧处的位置开关，其适于当弹簧被压缩到或超过表示车辆底盘的期望水平的期望长度时产生信号。基于信号在一段时间间隔的持续时间，建立了弹簧的占空比。如果占空比低于期望的阀门或阀门范围，则表示机架太高，并且系统逐渐缩小弹簧。如果占空比高于所需的阀门或阀门范围，则表明机箱太低，弹簧逐渐放气。因此，当车辆运动时可以进行调平。

2. 发明授权

US4651838A Air spring control system and method 失效
标题翻译：空气弹簧控制系统及方法
公开(公告)号：US4651838A
公开(公告)日：1987-03-24
申请号：US661196
申请日：1984-10-15
申请人： James M. Hamilton , Lonnie K. Woods , Michael W. Godwin
发明人： James M. Hamilton , Lonnie K. Woods , Michael W. Godwin
IPC分类号： B60G17/015 , B60G17/019 , G01G5/06 , G01G19/10 , G01G5/04
CPC分类号： B60G17/0155 , B60G17/01933 , G01G19/10 , G01G5/06 , B60G2204/111 , B60G2400/252 , B60G2401/00 , Y10S280/01
摘要： A method and system are set forth for determining the force necessary to separate a first and a second mass by using an inflatable member such as an air spring. More specifically, the invention includes a system and method for load leveling of a vehicle. The system and method includes means for determining the weight on each spring by inflating the spring at a substantially constant rate. The pressure of the gas within the air spring is sensed at time intervals and, through a microprocessor or the like, the sensed pressure at the time intervals is assembled into a pressure-time history. From the pressure time history, the pressure is determined at which the chassis begins to lift. The determined pressure is processed to give an indication of the weight of the chassis borne by the air spring. The foregoing procedure is repeated for each air spring so that a gross vehicle weight can be determined as well as the distribution of weight upon each air spring. Once weight borne by each spring is known, the control can supply the correct pressure to the air spring to support such weight at the desird height.
摘要翻译：提出了一种方法和系统，用于通过使用诸如空气弹簧的可充气构件来确定分离第一和第二质量所需的力。更具体地，本发明包括用于车辆的负载调平的系统和方法。该系统和方法包括用于通过以基本恒定的速率使弹簧膨胀来确定每个弹簧的重量的装置。在时间间隔内感测空气弹簧内的气体的压力，并且通过微处理器等将在时间间隔的感测压力组装成压力时间历史。根据压力时间历史，确定底盘开始升高的压力。处理确定的压力以给出由空气弹簧承载的底盘的重量的指示。对于每个空气弹簧重复上述过程，使得可以确定总车辆重量以及每个空气弹簧上的重量分布。一旦知道每个弹簧承受的重量，控制器可以向空气弹簧提供正确的压力，以在非常高的高度支撑这种重量。

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