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公开(公告)号：US5551526A
公开(公告)日：1996-09-03
申请号：US311618
申请日：1994-09-23
CPC分类号： B60K23/08
摘要： A 4-wheel tractor having brakes on the rear wheels only and an FWD clutch for selectively drivingly coupling the front wheels to the rear wheels, is provided with a control circuit, operative during rear wheel braking, for controlling the clutch so that the front wheels are intermittently coupled to and uncoupled from the rear wheels. Brake pedals which individually control the rear wheel brakes, and a hand brake all control switches connected to a controller. An FWD switch is also connected to the controller. A ground speed sensor applies to the controller a signal representing the speed of the tractor. If the tractor speed is above 15 mph at the time both brake pedals are depressed, the controller selectively controls a solenoid so that the clutch is selectively engaged and disengaged in a first sequence if the FWD switch is ON but selectively controls the solenoid so that the clutch is selectively engaged and disengaged in a second sequence if the FWD switch is in an OFF or an AUTO position. Operation of the clutch effects intermittent front wheel braking as the rear wheels are braked so that front wheel skidding is reduced during hard braking.
摘要翻译： 仅在后轮上制动的四轮拖拉机和用于选择性地将前轮与前轮相连的FWD离合器设置有控制回路，在后轮制动期间操作，用于控制离合器，使得前轮 间歇地联接到后轮并与其分离。 单独控制后轮制动器的制动踏板，以及连接到控制器的所有控制开关的手制动器。 FWD开关也连接到控制器。 地面速度传感器将表示拖拉机速度的信号应用于控制器。 如果在两个制动踏板被压下的情况下拖拉机的速度都超过15英里/小时，则控制器选择性地控制螺线管，使得如果FWD开关接通而选择性地控制螺线管，则离合器以第一顺序选择性地接合和分离， 如果FWD开关处于OFF或AUTO位置，则离合器以第二顺序选择性地接合和分离。 当后轮被制动时，离合器的操作实现间歇前轮制动，从而在硬制动期间减小前轮打滑。
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公开(公告)号：US5925561A
公开(公告)日：1999-07-20
申请号：US927631
申请日：1997-09-11
CPC分类号： C05F17/0258 , C05F17/0072 , C05F17/0223 , C05F17/027 , Y02P20/145 , Y02W30/43
摘要： A rotary composter is provided with a control system that is operable to control the operation of a rotary composter equipped with a variable rate air flow mechanisms and a variable speed drive for rotating the composter vessel. The control system includes a microprocessor in which is stored a look-up table to control the variable rate of application of both air flow and vessel rotation in response to sensed parameters corresponding to the operation of the composter. The control system further includes sensors at each digesting compartment within the composter vessel to provide information relating to the temperature within the vessel. Gas sensors detect the levels of carbon dioxide and ammonia within the air flow through the composter vessel. The microprocessor compares the temperature and gas data to permissible ranges therefor and determines if the composter is operating properly. In the event that operational changes are necessary, the microprocessor can effect the changes in speed of rotation of the vessel and the rate of air through the vessel either manually or automatically. To improve performance of the gas sensors, the composter vessel is provided with a smaller diameter sensor drum through which the air flow through the composter vessel can be discharged.
摘要翻译： 旋转式压实机设置有控制系统，该控制系统可操作以控制配备有可变速率气流机构的旋转式搅拌机和用于旋转压缩容器的变速驱动器的操作。 控制系统包括微处理器，其中存储有查询表以响应于对应于混合器的操作的感测参数来控制空气流和容器旋转的可变速率。 控制系统还包括在压缩容器内的每个消化室处的传感器，以提供与容器内的温度有关的信息。 气体传感器检测通过堆肥船的空气流中的二氧化碳和氨的水平。 微处理器将温度和气体数据与其允许范围进行比较，并确定堆肥机是否正常运行。 在需要进行操作变更的情况下，微处理器可以手动或自动地影响容器的旋转速度和通过容器的空气的速率。 为了提高气体传感器的性能，堆肥容器设置有较小直径的传感器鼓，通过该传感器鼓可以排出通过堆肥容器的气流。
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公开(公告)号：US6001641A
公开(公告)日：1999-12-14
申请号：US261113
申请日：1999-03-03
CPC分类号： C05F17/0258 , C05F17/0072 , C05F17/0223 , C05F17/027 , Y02P20/145 , Y02W30/43
摘要： A rotary composter is provided with a control system that is operable to control the operation of a rotary composter equipped with a variable rate air flow mechanisms and a variable speed drive for rotating the composter vessel. The control system includes a microprocessor in which is stored a look-up table to control the variable rate of application of both air flow and vessel rotation in response to sensed parameters corresponding to the operation of the composter. The control system further includes sensors at each digesting compartment within the composter vessel to provide information relating to the temperature within the vessel. Gas sensors detect the levels of carbon dioxide and ammonia within the air flow through the composter vessel. The microprocessor compares the temperature and gas data to permissible ranges therefor and determines if the composter is operating properly. In the event that operational changes are necessary, the microprocessor can effect the changes in speed of rotation of the vessel and the rate of air through the vessel either manually or automatically. To improve performance of the gas sensors, the composter vessel is provided with a smaller diameter sensor drum through which the air flow through the composter vessel can be discharged.
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