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1. 发明授权

US4637781A Torque regulating system for fluid operated pump displacement control systems 失效
标题翻译：用于流体泵排量控制系统的扭矩调节系统
公开(公告)号：US4637781A
公开(公告)日：1987-01-20
申请号：US717197
申请日：1985-03-28
申请人： Teruo Akiyama , Katsuyuki Sasaki , Takaichi Saigo
发明人： Teruo Akiyama , Katsuyuki Sasaki , Takaichi Saigo
IPC分类号： F04B49/00 , F04B49/06 , F04B49/08
CPC分类号： F04B49/06 , F04B49/002 , F04B49/08 , F04B2201/1201 , F04B2201/1202 , F04B2201/1204
摘要： A fluid operated pump displacement control system is provided wherein a self pressure is defined as a first control signal, and characterized in that an arbitrary switchable second control signal different from the first control signal is added to the first control signal, and a displacement is adapted to be switched to a displacement corresponding to a value of the second control signal as added to the first control signal. Further, a fluid operated pump displacement control system is provided comprising a control circuit connected to respective displacement control devices of variable displacement pumps and adapted to be operated by discharge pressure fluid from a discrete control pump. A variable torque control valve has a proportional electromagnetic solenoid provided in a circuit connecting the control circuit with the control pump and is adapted to produce a pressure reduction by a discharge fluid pressure of the variable displacement pumps and a propelling force of the proportional electromagnetic solenoid. A detector detects set output conditions of a prime mover for driving the variable displacement pumps, and current is supplied to the proportional electromagnetic solenoid according to the difference between a set reference rotational speed in each of the set output conditions and an actual rotational speed of the prime mover.
摘要翻译：提供了一种流体动力泵位移控制系统，其中自身压力被定义为第一控制信号，其特征在于，与第一控制信号不同的任意可切换的第二控制信号被加到第一控制信号上，切换到与第一控制信号相加的对应于第二控制信号的值的位移。此外，提供一种流体操作的泵排量控制系统，其包括连接到可变排量泵的各个排量控制装置并且适于由来自离散控制泵的排出压力流体操作的控制电路。可变转矩控制阀具有比例电磁线圈，其设置在连接控制电路与控制泵的电路中，并且适于通过可变排量泵的排出流体压力和比例电磁螺线管的推进力产生减压。检测器检测用于驱动可变排量泵的原动机的设定输出条件，并且根据设定的输出条件中的设定的基准转速与实际的转速之间的差异将电流提供给比例电磁螺线管原动机。

2. 发明授权

US4485444A Retarder brake automatic control system 失效
标题翻译：减速器制动自动控制系统
公开(公告)号：US4485444A
公开(公告)日：1984-11-27
申请号：US326370
申请日：1981-12-01
申请人： Yasuhiro Maruyama , Takaichi Saigo , Sakae Tanahashi , Yoshihei Masai
发明人： Yasuhiro Maruyama , Takaichi Saigo , Sakae Tanahashi , Yoshihei Masai
IPC分类号： B60K31/18 , B60T7/12 , B60T17/22 , F16D66/00 , G06F15/20
CPC分类号： B60K31/18 , B60T17/22 , B60T7/12 , F16D2066/001
摘要： A retarder brake automatic control system capable of causing a vehicle to run downhill at a speed set by a speed setter, in which a vehicle speed is automatically controlled by means of a microcomputer. The microcomputer includes a fault detector which detects abnormality in factors for safety running of the vehicle, and controls a retarder brake so as to cause the vehicle to run at an appropriate speed in accordance with the output of the fault detector.
摘要翻译：一种减速器制动自动控制系统，其能够使车辆以由微型计算机自动控制的速度设定器设定的速度下坡行驶。微型计算机包括故障检测器，其检测车辆的安全运行的因素的异常，并且控制延迟器制动器，以使车辆根据故障检测器的输出以适当的速度行驶。

3. 发明授权

US4904161A Apparatus for controlling hydrualic pump 失效
标题翻译：水力泵控制装置
公开(公告)号：US4904161A
公开(公告)日：1990-02-27
申请号：US183742
申请日：1988-03-25
申请人： Takao Kamide , Kentaro Nakamura , Takaichi Saigo , Katsumi Yoshida
发明人： Takao Kamide , Kentaro Nakamura , Takaichi Saigo , Katsumi Yoshida
IPC分类号： F04B1/32 , F04B49/06
CPC分类号： E02F9/2235 , E02F9/2246 , F04B1/324 , F04B49/065 , F04B2203/0601 , F04B2203/0605 , F04B2205/05
摘要： An apparatus for controlling a variable displacement type hydraulic pump including an engine as a driving power source is disclosed. The subject invention detects the number of revolutions of the engine and the pressure of hydraulic oil delivered from the hydraulic pump, and sets a pump absorption torque characteristic which decreases in relation to the number of revolutions of the engine. The inclination angle of a swash plate in the pump is detected with reference to the pump absorption torque characteristic and the pressure of hydraulic oil delivered from the pump, and the swash plate in the pump can be controlled so as to assure its inclination angle; the number of revolutions of the engine can be reduced without the absorption torque of the hydraulic pump exceeding the allowable torque of the engine. When the controlled apparatus is utilized, the number of revolutions of the engine can be optimally reduced and fuel consumption cost reduced correspondingly. The inclination angle of the swash plate in the pump can be increased to a maximum so that the operational efficiency of the pump is increased.

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