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公开(公告)号:US4316395A
公开(公告)日:1982-02-23
申请号:US87931
申请日:1979-10-25
申请人: Derek Brown
发明人: Derek Brown
CPC分类号: B60K28/00 , F16H61/0246 , F16H2059/088 , Y10T477/693625 , Y10T74/1926
摘要: Control apparatus for a drive transmission such as the hydraulic drive transmission of a fork lift truck is provided in which an electrical signal is developed having a frequency representative of the rate of rotation of the drive shaft of the transmission. A first switching circuit is controlled in response to the said signal so as to remain in one state thereof during each cycle of the said signal when the duration of the cycle is less than a predetermined duration, and to be settable in another state thereof by actuation of a manually operable direction switch, serving as a forward-reverse drive selector lever, when the duration of the said cycle is greater than the said predetermined duration. A second switching circuit is so controlled in response to the said signal as to be set into one state thereof in response to a cycle of the said signal when the duration of the said cycle falls below a second predetermined duration, and to be set into another state thereof when the duration of the said cycle increases to exceed a third predetermined duration. The second switching circuit effects energization of a low gear ratio electrical actuator or a high gear ratio electrical actuator respectively depending upon which one of the said two states of the second switching means prevails.
摘要翻译: 提供了用于诸如叉车的液压驱动变速器的驱动变速器的控制装置,其中形成具有代表变速器的驱动轴的转速的频率的电信号。 当周期的持续时间小于预定的持续时间时,在所述信号的每个周期期间,响应于所述信号来控制第一开关电路以便保持在其一个状态,并且可以通过致动而在其他状态下设置 当所述循环的持续时间大于所述预定持续时间时,用作正向反向驱动选择杆的可手动操作的方向开关。 当所述周期的持续时间下降到第二预定持续时间以下时,第二切换电路响应于所述信号被如此被控制,以响应于所述信号的周期被设置成其一个状态,并且被设置为另一个状态 当所述周期的持续时间增加到超过第三预定持续时间时的状态。 第二开关电路分别根据第二开关装置的所述两种状态中的哪一种来实现低齿轮比电致动器或高齿轮比电致动器的通电。
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公开(公告)号:US4370961A
公开(公告)日:1983-02-01
申请号:US186963
申请日:1980-09-15
申请人: Derek Brown
发明人: Derek Brown
IPC分类号: F02D31/00
CPC分类号: F02D31/007
摘要: A motor vehicle with power take-off apparatus is equipped with an arrangement for automatically controlling the rate of supply of fuel to an internal combustion engine which drives the power take-off output shaft. This arrangement has a sensor which produces pulses at a repetition speed proportional to the speed of rotation of the power take-off output shaft, and circuitry which provides an output signal at one binary level if the sensed speed of rotation rises higher than a first reference speed on increasing from zero, and at the other binary level if the sensed speed of rotation falls below a second, lower reference speed on decreasing from above the first reference rate. This binary signal is used to control the state, energized or de-energized, of a solenoid which in turn controls, directly or indirectly, a mechanical device which acts on the flow of fuel to the engine. The road speed of the vehicle can be limited automatically in the same way.
摘要翻译: 具有动力输出装置的机动车辆配备有用于自动控制驱动动力输出轴的内燃机的燃料供给速度的装置。 这种布置具有传感器,其以与动力输出轴的旋转速度成比例的重复速度产生脉冲,以及如果所感测的旋转速度升高到高于第一参考值的电路,则以一个二进制水平提供输出信号 如果感测到的转速低于第二参考速度,则从零开始增加速度,并且在另一个二进制水平下,从第一参考速率上方降低参考速度。 该二进制信号用于控制螺线管的状态,通电或断电,其直接或间接地控制作用于发动机的燃料流的机械装置。 车辆的道路速度可以以相同的方式自动限制。
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