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    • 3. 发明专利
    • Engine control device for hybrid vehicle
    • 混合动力车用发动机控制装置
    • JP2011140923A
    • 2011-07-21
    • JP2010002730
    • 2010-01-08
    • Hitachi Automotive Systems Ltd日立オートモティブシステムズ株式会社
    • KOMURO ATSUSHIYOSHIDA YOSHIYUKI
    • F02D11/10F02D41/08F02D41/14F02D41/16F02D41/18
    • Y02T10/6286
    • PROBLEM TO BE SOLVED: To provide an engine control device for a hybrid vehicle capable of suitably correcting a throttle opening characteristic, also with respect to opening other than idling opening, without giving a driver a sense of incongruity and discomfort, etc. SOLUTION: The engine control device for a hybrid vehicle is mounted with both an engine including an electrically-controlled throttle valve and a motor/generator. The engine control device includes a characteristic changing part learning means which learns a characteristic changing part changed from an initial throttle opening characteristic obtained in advance by experiments, etc., to correct the throttle opening characteristic. The learning means changes the throttle opening to several openings other than the idling opening, during idling operation in which an engine torque supplied for driving a vehicle is not requested. The learning means learns the characteristic changing part while absorbing surplus engine torque generated by increasing the throttle opening in each of the several openings by making the motor/generator perform power regeneration. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供一种混合动力车辆的发动机控制装置,其能够适当地校正节气门开度特性,而且相对于空转开口以外的开度,不会给驾驶员带来不协调感和不适感等。 解决方案:用于混合动力车辆的发动机控制装置安装有包括电控节流阀和电动机/发电机的发动机。 发动机控制装置包括特征变化部分学习装置,其学习从通过实验等提前预先获得的初始节气门开度特性改变的特性变化部,以校正节气门开度特性。 在不需要用于驾驶车辆的发动机扭矩的怠速运转期间,学习装置将节气门开度改变为除空转开口以外的若干开口。 学习装置通过使马达/发电机进行动力再生来吸收通过增加多个开口中的每一个中的节气门开度产生的剩余发动机转矩来学习特征变化部分。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Engine control unit
    • 发动机控制单元
    • JP2011094561A
    • 2011-05-12
    • JP2009250717
    • 2009-10-30
    • Hitachi Automotive Systems Ltd日立オートモティブシステムズ株式会社
    • YOSHIDA YOSHIYUKIKOMURO ATSUSHI
    • F02D29/02F02D17/00F02D41/16F02D45/00
    • F02D31/003F02D11/105F02D41/042F02D41/187F02D41/2441F02D41/2464F02D2011/102F02D2200/0404F02D2200/1012
    • PROBLEM TO BE SOLVED: To provide an engine control unit determining whether or not a sudden change in ETC characteristic has occurred, timely learning the ETC characteristic, and thus suppressing racing of an engine and enhancing the torque achieving accuracy thereof, at a time other than the opportunity of a regular air volume learning in a vehicle having no idle state or a less frequent opportunity of the idle state. SOLUTION: This control unit performing automatic stop control and automatic starting control of the engine includes: a characteristic storage means which stores therein the characteristic of an air flow rate with respect to the 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 learns the characteristic of the air flow rate by correcting the characteristic of the air flow rate on the basis of a result of the determination; 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 the detected air flow rate becomes a target air flow rate. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种发动机控制单元,其确定是否发生了ETC特性的突然变化,及时学习ETC特性,从而抑制发动机的转矩并提高其转矩实现精度 没有空闲状态的车辆的正常空气量学习的机会以及空闲状态的机会较少的时间。 该控制单元执行发动机的自动停止控制和自动启动控制,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,其通过基于确定的结果校正空气流量的特性来获知空气流量的特性; 以及电子节气门调节阀控制装置407,其基于所获知的空气流量特性,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。 版权所有(C)2011,JPO&INPIT
    • 5. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2012052421A
    • 2012-03-15
    • JP2010193111
    • 2010-08-31
    • Hitachi Automotive Systems LtdNissan Motor Co Ltd日産自動車株式会社日立オートモティブシステムズ株式会社
    • ISEKI ATSUSHIOMURA YASUSHIONO TAKESHIYOSHIDA YOSHIYUKIKOMURO ATSUSHI
    • F02D9/02B60K6/48B60W10/06B60W20/00F02D29/02F02D41/08
    • Y02T10/6221
    • PROBLEM TO BE SOLVED: To calculate an amount of air to be sucked in a state where the accelerator is fully closed by taking into consideration the influence of friction of an internal combustion engine that varies depending on the temperature of cooling water.SOLUTION: A first-rotating-speed maintaining air-amount, which is an amount of air to be sucked at least necessary for self-sustaining rotation of the internal-combustion engine in the state where the accelerator is fully closed, and a combustion-stability maintaining air-amount, which is an amount of air to be sucked at least necessary to prevent the internal combustion engine from stalling, are calculated. In the state where the accelerator is fully closed, one which is larger between the first-rotating-speed maintaining air-amount and the combustion-stability maintaining air-amount is selected as the amount of air to be sucked and the throttle opening degree is controlled based on the selected amount of air. Here, the higher the temperature of cooling water, the further the first rotating speed maintaining air amount and the combustion stability maintaining air amount are reduced.
    • 要解决的问题:考虑到根据冷却水的温度变化的内燃机的摩擦的影响,计算在加速器完全关闭的状态下要吸入的空气量。 解决方案:第一转速保持空气量,其是在加速器完全关闭的状态下至少对内燃机的自持旋转至少需要吸入的空气量,以及 计算作为防止内燃机停止的至少必要的吸入空气量的燃烧稳定性维持空气量。 在加速器完全关闭的状态下,选择在第一转速保持空气量和燃烧稳定性维持空气量之间变大的吸入空气量,并且节气门开度为 基于选定量的空气进行控制。 这里,冷却水的温度越高,第一转速保持空气量和燃烧稳定性保持空气量的进一步降低。 版权所有(C)2012,JPO&INPIT