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公开(公告)号：EP3332119A1
公开(公告)日：2018-06-13
申请号：EP16728925.5
申请日：2016-06-08
申请人： Robert Bosch GmbH
发明人： MUELLER, Stefan
CPC分类号： F04B49/03 , F04B35/002 , F04B49/06 , F04B49/225 , F04B2203/0601 , F04B2203/0606 , F04B2205/171
摘要： The invention is directed to a compressed air generation device comprising a combustion engine unit (12) and a compressor unit (14) that is effectively coupled to the combustion engine unit (12). According to the invention, the compressed air generation device further comprises a control unit (16) that is provided for varying a sucked volume flow of the compressor unit (14) in at least one operating state in accordance with a current output of the combustion engine unit (12).
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公开(公告)号：EP0457365B1
公开(公告)日：1994-10-19
申请号：EP91110985.8
申请日：1987-08-15
CPC分类号： E02F9/2235 , E02F9/2246 , F04B1/324 , F04B49/065 , F04B2203/0601 , F04B2203/0605 , F04B2205/05
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公开(公告)号：EP0457365A3
公开(公告)日：1992-08-12
申请号：EP91110985.8
申请日：1987-08-15
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. This controlling apparatus comprises means (5) for detecting the number of revolutions of the engine, means (6) for detecting a pressure of hydraulic oil delivered from the hydraulic pump, means (12) for setting with reference to the number of revolutions of the engine a pump absorption torque characteristic which monotonously decreases in relation to the number of revolutions of the engine, means (7) for looking for an inclination angle of a swash plate in the pump with reference to the pump absorption torque characteristic and the pressure of hydraulic oil delivered from the pump, means (8) for controlling the swash plate in the pump so as to assure the inclination angle of the swash plate, and means (7,9,10) for reducing the number of revolutions of the engine under a condition that an absorption torque absorbed by the hydraulic pump does not exceed an allowable torque of the engine. When the controlling apparatus is employed, the number of revolutions of the engine can be reduced as far as possible whereby a fuel consumption cost can be reduced correspondingly. Further, since the inclination angle of the swash plate in the pump can be increased as far as possible, an operational efficiency of the pump can be increased.
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公开(公告)号：EP0277253B1
公开(公告)日：1992-07-08
申请号：EP87905290.0
申请日：1987-08-15
IPC分类号： F04B49/06
CPC分类号： E02F9/2235 , E02F9/2246 , F04B1/324 , F04B49/065 , F04B2203/0601 , F04B2203/0605 , F04B2205/05
摘要： A unit for controlling a variable capacity type hydraulic pump using an engine as a driving power source. This unit is provided with a means (5) for detecting the number of revolutions per minute of an engine, a means (6) for detecting the discharge pressure of a hydraulic pump, a means (12) for setting on the basis of the number of revolutions per minute of the engine the suction torque characteristics of the pump, which decrease monotonously with respect to this number of revolutions, a means (7) for determining an angle of pivotal movement of a swash plate in the pump on the basis of the suction torque characteristics and discharge pressure of the pump, a means (8) for controlling the swash plate in the pump so that this angle of pivotal movement of the swash plate of the pump can be attained, and means (7, 9, 10) for reducing the number of revolutions per minute of the engine on condition that the suction torque of the hydraulic pump does not exceed the allowable torque of the engine. According to this control unit, the number of revolutions per minute of the engine can be reduced to a lowest possible level, and a cost-per-mile can be minimized. Moreover, the angle of pivotal movement of the swash plate in the pump can be increased to a highest possible level, and the operational efficiency of the pump is improved.
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公开(公告)号：EP0277253A4
公开(公告)日：1990-02-22
申请号：EP87905290
申请日：1987-08-15
申请人： KOMATSU MFG CO LTD
CPC分类号： E02F9/2235 , E02F9/2246 , F04B1/324 , F04B49/065 , F04B2203/0601 , F04B2203/0605 , F04B2205/05
摘要： A unit for controlling a variable capacity type hydraulic pump using an engine as a driving power source. This unit is provided with a means (5) for detecting the number of revolutions per minute of an engine, a means (6) for detecting the discharge pressure of a hydraulic pump, a means (12) for setting on the basis of the number of revolutions per minute of the engine the suction torque characteristics of the pump, which decrease monotonously with respect to this number of revolutions, a means (7) for determining an angle of pivotal movement of a swash plate in the pump on the basis of the suction torque characteristics and discharge pressure of the pump, a means (8) for controlling the swash plate in the pump so that this angle of pivotal movement of the swash plate of the pump can be attained, and means (7, 9, 10) for reducing the number of revolutions per minute of the engine on condition that the suction torque of the hydraulic pump does not exceed the allowable torque of the engine. According to this control unit, the number of revolutions per minute of the engine can be reduced to a lowest possible level, and a cost-per-mile can be minimized. Moreover, the angle of pivotal movement of the swash plate in the pump can be increased to a highest possible level, and the operational efficiency of the pump is improved.
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6.发明公开
公开(公告)号：EP0457365A2
公开(公告)日：1991-11-21
申请号：EP91110985.8
申请日：1987-08-15
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.
This controlling apparatus comprises means (5) for detecting the number of revolutions of the engine, means (6) for detecting a pressure of hydraulic oil delivered from the hydraulic pump, means (12) for setting with reference to the number of revolutions of the engine a pump absorption torque characteristic which monotonously decreases in relation to the number of revolutions of the engine, means (7) for looking for an inclination angle of a swash plate in the pump with reference to the pump absorption torque characteristic and the pressure of hydraulic oil delivered from the pump, means (8) for controlling the swash plate in the pump so as to assure the inclination angle of the swash plate, and means (7,9,10) for reducing the number of revolutions of the engine under a condition that an absorption torque absorbed by the hydraulic pump does not exceed an allowable torque of the engine.
When the controlling apparatus is employed, the number of revolutions of the engine can be reduced as far as possible whereby a fuel consumption cost can be reduced correspondingly. Further, since the inclination angle of the swash plate in the pump can be increased as far as possible, an operational efficiency of the pump can be increased.摘要翻译： 公开了一种用于控制包括发动机作为驱动动力源的可变排量型液压泵的装置。 该控制装置包括用于检测发动机转数的装置（5），用于检测从液压泵输送的液压油的压力的装置（6），用于参照转速的设定 发动机相对于发动机转数单调减小的泵吸收扭矩特性，参考泵吸收转矩特性和液压压力来查找泵中旋转斜盘的倾斜角度的装置（7） 从泵输送的油，用于控制泵中的斜盘的装置（8），以确保斜盘的倾斜角度，以及用于减少发动机在一个或多个转速下的转数的装置（7,9,10） 条件是液压泵吸收的吸收扭矩不超过发动机的允许扭矩。 当采用控制装置时，可以尽可能地减少发动机的转数，从而可以相应地减少燃料消耗成本。 此外，由于可以尽可能地增加泵中斜盘的倾斜角度，所以能够提高泵的运转效率。
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公开(公告)号：EP0277253A1
公开(公告)日：1988-08-10
申请号：EP87905290.0
申请日：1987-08-15
IPC分类号： F04B49/06
CPC分类号： E02F9/2235 , E02F9/2246 , F04B1/324 , F04B49/065 , F04B2203/0601 , F04B2203/0605 , F04B2205/05
摘要： A unit for controlling a variable capacity type hydraulic pump using an engine as a driving power source. This unit is provided with a means (5) for detecting the number of revolutions per minute of an engine, a means (6) for detecting the discharge pressure of a hydraulic pump, a means (12) for setting on the basis of the number of revolutions per minute of the engine the suction torque characteristics of the pump, which decrease monotonously with respect to this number of revolutions, a means (7) for determining an angle of pivotal i movement of a swash plate in the pump on the basis of the suction torque characteristics and discharge pressure of the pump, a means (8) for controlling the swash plate in the pump so that this angle of pivotal movement of the swash plate of the pump can be attained, and means (7, 8, 10) for reducing the number of revolutions per minute of the engine on condition that the suction torque of the hydraulic pump does not exceed the allowable torque of the engine. According to this control unit, the number of revolutions per minute of the engine can be reduced to a lowest possible level, and a cost-per-mile can be minimized. Moreover, the angle of pivotal movement of the swash plate in the pump can be increased to a highest possible level, and the operational efficiency of the pump is improved.
摘要翻译： 控制单元设置有用于检测发动机每分钟转数的发动机转速传感器（5）。 压力传感器（6）检测液压泵的排出压力，并且存储器（12）基于发动机的每分钟转数和泵的吸入转矩特性来设定。 相对于转数而言，它们单调减少。 控制器（7）用于基于泵的抽吸转矩特性和排出压力来确定旋转斜盘在泵中的枢转运动的角度。 旋转斜盘驱动致动器是（8），用于控制泵中的斜盘，使得可以获得泵的斜盘的这种转动角度。 如果液压泵的吸力不超过发动机的允许扭矩，则调速器和电磁阀用于（7,9,10）以减少发动机每分钟的转数。
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