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发明公开
CN103080511A 作业机械的发动机控制装置及其发动机控制方法 有权

作业机械的发动机控制装置及其发动机控制方法
摘要：
本发明提供一种作业机械的发动机控制装置，为了兼顾低燃油消耗率和作业性的提高，具备：检测单元，其检测作业机械的运转状态；无负载最大转速运算单元，其基于所述运转状态，运算在作业机械的负载脱离了的情况下被最大限度提升的发动机的转速即无负载最大转速(np2)；目标匹配转速运算单元，其基于所述运转状态，以与所述无负载最大转速不同的方式运算在对作业机械加载了负载的情况下被提升的发动机的转速即目标匹配转速(np1)；发动机目标输出运算单元，其基于所述运转状态，运算能最大限度输出的发动机目标输出(EL)；以及发动机控制单元，其在发动机目标输出(EL)的限制下，将发动机转速控制在无负载最大转速(np2)与目标匹配转速(np1)之间。
摘要（英）：

In order to achieve both low fuel consumption and improved operability, the present invention is provided with: a detection means that detects the operating state of a work machine; an unloaded maximum rotational frequency computation means that, on the basis of the operating state, computes an unloaded maximum rotational frequency (np2), which is the maximum rotational frequency that an engine can be raised to when the load of the work machine has been removed; a target matching rotational frequency computation means that, on the basis of the operating state, separately from the unloaded maximum rotational frequency, computes a target matching rotational frequency (np1), which is the rotational frequency that the engine can be raised to when the load has been applied to the work machine; an engine target output computation means that, on the basis of the operating state, computes the maximum outputable engine target output (EL); and an engine control means that controls the engine rotational frequency between the unloaded maximum rotational frequency (np2) and the target matching rotational frequency (np1) and under the limit of the engine target output (EL).

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