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    • 2. 发明申请
    • ENGINE CONTROL UNIT
    • 发动机控制单元
    • US20140121947A1
    • 2014-05-01
    • US14126139
    • 2012-06-14
    • Atsushi Komuro
    • Atsushi Komuro
    • F02D28/00
    • F02D28/00F02D11/10F02D41/18F02D41/2438F02D41/2441F02D41/2464F02D2200/0404F02N11/0829Y02T10/48
    • Engine control unit enabling to learn a change of relationship between a throttle opening degree and an intake air quantity (opening degree—air quantity characteristic) while restricting lowering of fuel efficiency to a minimum and to improve accuracy of engine stall prevention, torque control, including: a learning means which learns a characteristic change amount of the opening degree—air quantity characteristic; a learning requirement determining means; and a learning moving means causing executing learning in a stable driving state. The learning requirement determining means derives a separation amount between an intake air quantity corresponding to a throttle valve opening degree at present time and an actual intake air quantity detected in the stable driving state and determines requirement of learning with use of the separation amount and a threshold value.
    • 发动机控制单元能够在将燃油效率降低到最低的同时学习节气门开度和进气量(开度 - 空气量特性)之间的关系的变化,并且提高发动机失速防止的精度,转矩控制,包括 :学习装置,其学习开度空气量特性的特征变化量; 学习要求确定装置; 以及使得在稳定的驾驶状态下执行学习的学习移动装置。 学习要求确定装置导出与当前时刻的节气门开度相对应的进气量与在稳定行驶状态下检测到的实际进气量之间的分离量,并且使用分离量和阈值来确定学习的要求 值。
    • 3. 发明申请
    • Engine Control Unit
    • 发动机控制单元
    • US20110100326A1
    • 2011-05-05
    • US12857170
    • 2010-08-16
    • Yoshiyuki YoshidaAtsushi Komuro
    • Yoshiyuki YoshidaAtsushi Komuro
    • F02D9/08F02N11/08
    • F02D31/003F02D11/105F02D41/042F02D41/187F02D41/2441F02D41/2464F02D2011/102F02D2200/0404F02D2200/1012
    • Provided is an engine control unit which is capable of determining whether or not a sudden change in ETC characteristic has occurred, timely learning the ETC characteristic, and thus suppressing excessive racing of an engine and enhancing torque realizing accuracy thereof, at a time other than the opportunity of a regular air quantity learning in a vehicle having no idle state or a less frequent opportunity of the idle state. The engine control unit performs automatic stop control and automatic starting control of an engine and includes: a characteristic storage means which stores therein a characteristic of an air flow rate with respect to a valve opening degree of an electronic throttle control valve; a characteristic change determination means 405b which determines at a time of the automatic stop control that the characteristic of the air flow rate has changed in a direction in which the air flow rate increases with respect to the valve opening degree; a characteristic learning means 405c which corrects the characteristic of the air flow rate on the basis of a result of the determination, to thereby learn the characteristic of the air flow rate; and an electronic throttle control valve control means 407 which controls, on the basis of the learned characteristic of the air flow rate, the valve opening degree of the electronic throttle control valve so that a detected air flow rate becomes a target air flow rate.
    • 提供了一种发动机控制单元,其能够确定ETC特性的突然变化是否发生,及时学习ETC特性,从而抑制发动机的过度运转并提高转矩实现精度,除了 在没有空闲状态的车辆中经常空气量学习的机会或空闲状态的机会较少。 发动机控制单元执行发动机的自动停止控制和自动启动控制,并且包括:特征存储装置,其中存储有相对于电子节气门控制阀的阀开度的空气流量的特性; 在自动停止控制时确定空气流量的特性在空气流量相对于阀开度增加的方向上变化的特性变化判定单元405b; 特征学习装置405c,其基于判定结果校正空气流量的特性,从而学习空气流量的特性; 以及电子节气门调节阀控制装置407,其基于所获得的空气流量特性,控制电子节气门调节阀的阀开度,使得检测到的空气流量成为目标空气流量。