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    • 4. 发明专利
    • Control device for variable displacement oil pump
    • 可变位移油泵的控制装置
    • JP2014159757A
    • 2014-09-04
    • JP2013030138
    • 2013-02-19
    • Toyota Motor Corpトヨタ自動車株式会社Aisin Seiki Co Ltdアイシン精機株式会社
    • YOSHIDA ISAOTAKAGI NOBORUITO SHINICHIRONISHIDA YUKIONO HISASHI
    • F01M1/16F01M1/02
    • PROBLEM TO BE SOLVED: To provide a control device for a variable displacement oil pump, capable of achieving a more appropriate pump discharge oil pressure.SOLUTION: Devices which are provided in an oil supply system for an engine are sorted into a first device group which utilizes oil as operating oil, a second device group for which a required oil pressure depends on an intake air amount and which utilizes oil as cooling agent, and a third device group for which a required oil pressure depends on an engine speed and which utilizes oil as cooling agent and lubricant. The highest required discharge oil pressures are extracted from the devices in each of the device groups, and the highest required discharge oil pressure of them is set as a target discharge oil pressure of an oil pump 5. For example, in the early stage of starting the engine, the required oil pressures for the second device group and the third device group are lower and a relatively low pump discharge pressure enough to meet the required oil pressure for the first device group is required, thus improving the fuel consumption rate of the engine.
    • 要解决的问题:提供一种可变容量油泵的控制装置,其能够实现更合适的泵排出油压。解决方案:设置在用于发动机的供油系统中的装置被分类为第一装置组 使用油作为工作油,第二装置组,其中所需的油压取决于进气量并且利用油作为冷却剂;以及第三装置组,其中所需的油压取决于发动机转速并且利用油 作为冷却剂和润滑剂。 从每个设备组中的装置中提取最高的排出油压,并将它们的最高要求的排出油压设定为油泵5的目标排出油压。例如,在起动的早期阶段 发动机需要第二装置组和第三装置组所需的油压,并且需要足够满足第一装置组所需油压的相对低的泵排出压力,从而提高发动机的燃油消耗率 。
    • 6. 发明专利
    • Control device for variable displacement oil pump
    • 可变位移油泵的控制装置
    • JP2014159759A
    • 2014-09-04
    • JP2013030140
    • 2013-02-19
    • Toyota Motor Corpトヨタ自動車株式会社Aisin Seiki Co Ltdアイシン精機株式会社
    • SAORI TAKASHITAKAGI NOBORUITO SHINICHIRONISHIDA YUKIONO HISASHI
    • F04C14/10F04C2/10
    • PROBLEM TO BE SOLVED: To provide a control device for a variable displacement oil pump, capable of keeping power required for discharging oil to a required minimum depending on the operating condition of an internal combustion engine.SOLUTION: The control device determines a target discharge oil pressure depending on an engine speed and an oil temperature (Step ST2), sets a target discharge oil pressure reaching time to be shorter as the engine speed is higher, when the engine speed has an increasing tendency (Step ST5), and sets a time constant for calculating the target discharge oil pressure, to be smaller to enhance the responsiveness to a discharge oil pressure, thus securing the performance of lubricating and cooling each sliding part earlier. On the other hand, it sets the target discharge oil pressure reaching time to be shorter as the engine speed is lower, when the engine speed has a reducing tendency (Step ST6), and sets the time constant for calculating the target discharge oil pressure, to be smaller to enhance the responsiveness to the discharge oil pressure, thus inhibiting the power of the engine from being consumed by the oil pump to improve the fuel consumption rate.
    • 要解决的问题:提供一种用于可变排量油泵的控制装置,其能够根据内燃机的运行状况将油排出所需的最小功率。解决方案:控制装置确定目标排出油 根据发动机转速和油温进行压力(步骤ST2),当发动机转速变高时,将目标排出油压达到时间缩短到更短的时间(步骤ST5),并设定时间 用于计算目标排出油压的常数变小以增强对排出油压力的响应性,从而确保每个滑动部件的润滑和冷却性能更早。 另一方面,当发动机转速较低时,目标排出油压到达时间变短,当发动机转速降低时(步骤ST6),设定计算目标排出油压的时间常数, 以增加对排出油压的响应性,从而抑制发动机的功率被油泵消耗以提高燃料消耗率。
    • 7. 发明专利
    • Hydraulic control device of engine
    • 发动机液压控制装置
    • JP2014159760A
    • 2014-09-04
    • JP2013030141
    • 2013-02-19
    • Toyota Motor Corpトヨタ自動車株式会社Aisin Seiki Co Ltdアイシン精機株式会社
    • MATSUYAMA YASUSHIITO SHINICHIROTAKAGI NOBORUNISHIDA YUKIONO HISASHI
    • F01M1/08F01M1/16F01P3/08
    • PROBLEM TO BE SOLVED: To improve fuel consumption in an engine 1 having an oil jet 30 injecting oil directly to a piston 13, by reducing a drive load of an oil pump 5 with cooling performance for the piston 13 secured.SOLUTION: A hydraulic control device includes a target oil pressure setting part (ECU100) which sets a target oil pressure Pt at a higher value, as a piston temperature Tp estimated on the basis of an operation state of an engine 1 (load rate KL, engine revolution speed Ne, etc.) is higher. The target oil pressure setting part calculates a piston time constant τ representing a response lag of temperature change of a piston 13 for change of the operation state of an engine 1 (step ST23), and uses the piston time constant τ to correct the target oil pressure Pt (ST24).
    • 要解决的问题:通过降低具有固定的活塞13的冷却性能的油泵5的驱动负荷,来改善具有喷油嘴30的油喷射直接喷射到活塞13的发动机1的燃料消耗。解决方案:液压控制 装置包括将目标油压Pt设定为较高值的目标油压设定部(ECU100)作为基于发动机1的运转状态推定的活塞温度Tp(负荷率KL,发动机转速Ne, 等等)更高。 目标油压设定部计算表示用于改变发动机1的运转状态的活塞13的温度变化的响应滞后的活塞时间常数τ(步骤ST23),并且使用活塞时间常数τ来校正目标油 压力Pt(ST24)。
    • 9. 发明专利
    • Pressing force adjusting device of endless transmission belt
    • 压力传动带压力调节装置
    • JP2014137033A
    • 2014-07-28
    • JP2013006848
    • 2013-01-18
    • Toyota Motor Corpトヨタ自動車株式会社Aisin Seiki Co Ltdアイシン精機株式会社
    • ITO HIDEAKITAKAGI NOBORUITO SHINICHIRONISHIDA YUKIONO HISASHI
    • F02B67/06F01L1/356F01M1/16F16H7/08
    • PROBLEM TO BE SOLVED: To provide a pressing force adjusting device which can optimize a pressing force applied to an endless transmission belt such as a timing chain.SOLUTION: Target base hydraulic pressure is obtained from a target base hydraulic pressure setting map using the number of engine revolutions, an oil temperature and an advanced position of a VVT mechanism as parameters. A fluttering amount of a timing chain 69 is detected by chain fluttering detection sensors 318a, 318b. When the fluttering amount of the timing chain 69 is larger than an allowable range, the target hydraulic pressure is obtained by adding a correction hydraulic pressure value to the target base hydraulic pressure, and on the other hand, when the fluttering amount of the timing chain 69 is smaller than the allowable range, the target hydraulic pressure is obtained by subtracting the correction hydraulic pressure value from the target base hydraulic pressure. A just enough pressing force is thereby applied to the timing chain 69, and the fluttering amount is limited within the allowable range.
    • 要解决的问题:提供一种可以优化施加到诸如正时链条之类的环形传动带的按压力的按压力调节装置。解决方案:目标基准液压是从目标基准液压设定图获得的, 发动机转速,油温和VVT机构的高级位置作为参数。 通过链式飘动检测传感器318a,318b来检测正时链69的飘动量。 当正时链条69的振动量大于容许范围时,通过将校正液压值与目标基本液压相加,获得目标液压,另一方面,当正时链的振动量 69小于允许范围时,通过从目标基础液压减去校正液压值来获得目标液压。 因此,正时链69施加刚好的按压力,并且将振动量限制在允许范围内。
    • 10. 发明专利
    • Fuel injection control device for internal combustion engine
    • 用于内燃机的燃油喷射控制装置
    • JP2010242647A
    • 2010-10-28
    • JP2009093282
    • 2009-04-07
    • Toyota Motor Corpトヨタ自動車株式会社
    • SEO HIROMITSUTAKAGI NOBORUMINO KAZUHIROTANAKA SHIGERUMIYAZAKI TAKASHIINOUE TAKEHIRO
    • F02D41/04F02D41/34F02D45/00
    • F02D41/3094F02D41/047
    • PROBLEM TO BE SOLVED: To provide a fuel injection control device for an internal combustion engine capable of appropriately controlling an air-fuel ratio even if a valve temperature is changed. SOLUTION: The internal combustion engine 10 includes a port injection injector 20 and a cylinder injection injector 21, and an injection ratio of fuel injected from each of the injectors 20, 21 is variably set based on an engine operating state. When the fuel injection mode of each of the injectors 20, 21 is changed, the total difference in the amount of adhesion to a wall surface before and after a change in the fuel injection mode and the total difference in the valve temperature before and after the change in the fuel injection mode are calculated. When the divergence degree of the valve temperature before and after the change in the fuel injection mode is higher than a predetermined value, a variation in the valve temperature after the fuel injection mode is changed is estimated based on a total difference in the valve temperature, and the amount of fuel injected is gradually corrected based on a difference in the amount of gradual adhesion calculated based on the variation. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供即使阀温度改变也能够适当地控制空燃比的内燃机的燃料喷射控制装置。 解决方案:内燃机10包括端口喷射喷射器20和气缸喷射喷射器21,并且基于发动机操作状态可变地设定从每个喷射器20,21喷射的燃料的喷射比。 当每个喷射器20,21的燃料喷射模式改变时,在燃料喷射模式改变之前和之后与壁表面的粘合量的总差异以及阀门温度之前和之后的总差值 计算燃油喷射模式的变化。 当燃料喷射模式改变之前和之后的阀温度的发散度高于预定值时,基于阀温度的总差值来估计燃料喷射模式之后的阀温度的变化, 并且基于基于变化计算的逐渐粘附量的差异逐渐校正喷射的燃料量。 版权所有(C)2011,JPO&INPIT