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    • 2. 发明专利
    • Injection control device for internal combustion engine
    • 用于内燃机的喷射控制装置
    • JP2008045452A
    • 2008-02-28
    • JP2006220074
    • 2006-08-11
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • TAKAHASHI YUKIHIRONAKASE YOSHIHIROKATO YUICHIICHINOSE HIROKI
    • F02D41/06F02D45/00
    • PROBLEM TO BE SOLVED: To inhibit deterioration of environmental performance of an internal combustion engine caused by an excessive fuel injection quantity in start. SOLUTION: ECU 100 executes start injection control process to determine a fuel injection quantity of first cycle in starting in each cylinder of an engine 200. In the process, an intake stroke rotation speed R is estimated for each cylinder and a cylinder flow-in rate Crate_o which is a ratio of fuel flowing into a cylinder is determined for each cylinder, based on the intake stoke rotation speed R. Moreover, a base injection quantity Mbase is corrected based on the cylinder flow-in rate Crate_o to set a base cylinder flow-in quantity Cf evenly determined for each cylinder by cooling water temperature Tw and fuel properties Fp at a cylinder flow-in quantity Cf_o actually flowing in each cylinder. Consequently, the optimal fuel injection quantity M of the first cycle in starting is determined for each cylinder, and fuel equivalent to the fuel injection quantity M is injected to an intake air port 213 by an injector 214 in the first cycle in starting. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了抑制起动时由过多的燃料喷射量引起的内燃机的环境性能的劣化。 解决方案:ECU100执行启动喷射控制处理以确定在发动机200的每个气缸中启动时的第一循环的燃料喷射量。在该过程中,针对每个气缸和气缸流量估计进气冲程转速R 基于进气起动转速R,针对每个气缸确定作为流入气缸的燃料的比率的速率Crate_o。此外,基于气缸流入速率Crate_o来校正基准喷射量Mbase,以设定 基础气缸流入量Cf通过冷却水温度Tw和每个气缸中实际流动的气缸流入量Cf_o的燃料特性Fp均匀地确定每个气缸。 因此,对于每个气缸确定启动中的第一循环的最佳燃料喷射量M,并且在起动时,通过喷射器214将与燃料喷射量M相当的燃料喷射到第一循环中的喷射器214。 版权所有(C)2008,JPO&INPIT
    • 5. 发明专利
    • Injection control device of internal combustion engine
    • 内燃机喷油控制装置
    • JP2009257290A
    • 2009-11-05
    • JP2008110361
    • 2008-04-21
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • TAKAHASHI YUKIHIROKOSUGE HIDEAKIKATO YUICHITOMIMATSU AKIRA
    • F02D41/06
    • PROBLEM TO BE SOLVED: To optimize the relationship between the injection start time and injection period of fuel in cold starting.
      SOLUTION: When a cooling water temperature Tw is less than a threshold value Twth in cold starting in the step of executing a start injection control, an ECU 100 executes a cold starting process. In this process, a discharge stroke rotation speed Rex, an intake stroke rotation speed Rin, and a compression stroke rotation speed Rcp are estimated by referring to a map in a first cycle in starting based on an explosion order, the cooling water temperature Tw, and a fuel property Fp for each cylinder. The ECU 100 provides a relational expression (1) of Ts=a×Cx+b which defines the relationship between an injection start crank position Cx and injection period Td of the fuel based on each of these rotational frequencies, calculates the injection start crank position Cs for minimizing a fuel consumption amount and the injection period Td corresponding to the injection start crank position Cs based on the relational equation, and drives and controls an injector 214.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:优化冷启动时燃料的喷射开始时间和喷射周期之间的关系。 解决方案:在执行启动喷射控制的步骤中冷启动时冷却水温度Tw小于阈值Twth时,ECU100执行冷启动处理。 在该处理中,基于爆炸命令,冷却水温度Tw,参照起动时的第一个循环中的地图来估算排出行程转速Rex,进气冲程转速Rin,压缩冲程转速Rcp, 和每个气缸的燃料特性Fp。 ECU100提供Ts = a×Cx + b的关系式(1),该关系式(1)基于这些旋转频率中的每一个来定义燃料的喷射开始曲柄位置Cx和喷射周期Td之间的关系,计算喷射开始曲柄位置 Cs,用于根据关系式最小化燃料消耗量和对应于喷射开始曲柄位置Cs的喷射周期Td,驱动并控制喷射器214.(C)2010,JPO&INPIT
    • 6. 发明专利
    • Liquid membrane thickness measurement device and controller for internal combustion engine
    • 液体厚度测量装置和内燃机控制器
    • JP2009103630A
    • 2009-05-14
    • JP2007277154
    • 2007-10-25
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • TAKAHASHI YUKIHIRONAKASE YOSHIHIROICHINOSE HIROKIKATO YUICHI
    • G01B11/06F02D41/04F02D45/00
    • PROBLEM TO BE SOLVED: To provide a liquid membrane thickness measurement device, capable of measuring the thickness of liquid membrane with high accuracy, using the fluorescent phenomena of the liquid membrane capable of preferably being used for an internal combustion engine.
      SOLUTION: The liquid membrane thickness measurement device includes a light-emitting element for emitting ultraviolet light; a half mirror for transferring the ultraviolet light emitted from the light-emitting element and reflecting the light containing the fluorescent light from the liquid membrane side; an optical fiber for transferring the ultraviolet light passed through the half mirror, from the light-emitting element to the liquid membrane and transferring the light, including the fluorescent light emitted from the liquid membrane to the half mirror side; an ultraviolet light cut filter for only passing the fluorescent light from the light, including the fluorescent light reflected by the half mirror; and a light sensor for detecting the intensity of the fluorescent light of the liquid membrane, by receiving the fluorescent light that has passed through the ultraviolet light cut filter and also outputting the voltage value corresponding to the intensity of the fluorescent of the liquid membrane. Each of those constituent elements is accommodated in one cabinet. Thus, the liquid membrane thickness measurement device capable of calculating the thickness of the liquid membrane using the outputting voltage of the optical sensor can be obtained.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够以能够优选用于内燃机的液膜的荧光现象,高精度地测量液膜厚度的液膜测厚装置。 液体膜厚测量装置包括用于发射紫外光的发光元件; 用于转移从发光元件发射的紫外光并从液膜侧反射含有荧光的光的半反射镜; 将通过半反射镜的紫外线从发光元件转移到液膜并将包含从液膜发出的荧光的光传输到半反射镜的光纤; 紫外光截止滤光器,用于仅使来自光的荧光包含由半反射镜反射的荧光; 以及光传感器,用于通过接收穿过紫外线截止滤光器的荧光并且还输出与液膜的荧光强度对应的电压值来检测液膜的荧光强度。 这些构成元件中的每一个都容纳在一个机柜中。 因此,可以获得能够使用光学传感器的输出电压计算液膜的厚度的液膜厚度测量装置。 版权所有(C)2009,JPO&INPIT
    • 8. 发明专利
    • Fuel property detection device
    • 燃油特性检测装置
    • JP2008107098A
    • 2008-05-08
    • JP2006287597
    • 2006-10-23
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • OOSAKI RIEKATAOKA TAKUMITSUKASAKI YUKIHIROTANIGUCHI SATOSHIICHINOSE HIROKIKATO YUICHIYASUDA AKIO
    • G01N21/59F02D45/00G01N21/41
    • G01N21/43
    • PROBLEM TO BE SOLVED: To provide a fuel property detection device capable of detecting both an index correlated with an alcohol concentration in a fuel including alcohol and an index correlated with a fuel density, accurately with a small and simple constitution, and having excellent durability and reliability. SOLUTION: A fuel property sensor 22 is equipped with an LED 46 and a PD 48 as light emission and reception parts for detecting the alcohol concentration in the fuel. The alcohol concentration can be determined from a light transmittance of the fuel detected by the LED 46 and the PD 48. The fuel property sensor 22 is also equipped with the light emission and reception parts for detecting the density (degree of heaviness) of a hydrocarbon fuel included in the fuel. The density of the hydrocarbon fuel included in the fuel can be determined from a refractive index of the fuel detected by the light emission and reception parts. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种燃料特性检测装置,其能够以简单的结构准确地检测包括醇的燃料中的醇浓度和与燃料密度相关的指标的指标,并且具有 出色的耐用性和可靠性。 解决方案:燃料特性传感器22配备有作为用于检测燃料中的酒精浓度的发光和接收部件的LED 46和PD 48。 可以从由LED 46和PD 48检测到的燃料的透光率来确定醇浓度。燃料特性传感器22还配备有用于检测碳氢化合物的密度(重度)的发光和接收部分 燃料中包含的燃料。 包含在燃料中的烃燃料的密度可以由发光和接收部分检测到的燃料的折射率确定。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2010096185A
    • 2010-04-30
    • JP2009293066
    • 2009-12-24
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • KATO YUICHIICHINOSE HIROKIMURASE SUNAOOSAKI RIE
    • F02D45/00F02D41/02F02D41/04F02D41/14F02P5/15
    • PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine correctly diagnosing an abnormality of a heavy/light fuel ratio detection sensor for alcohol-mixed fuel.
      SOLUTION: The control device of the internal combustion engine capable of using heavy fuel, light fuel, alcohol fuel and a mixture thereof as fuel includes a heavy/light fuel ratio detection means 39 detecting the ratio of the heavy fuel to the light fuel, and an air-fuel ratio detection means 41 detecting the air-fuel ratio of an exhaust gas, and calculates a fuel injection amount to set the air-fuel ratio at a target value based on the heavy/light fuel ratio detection means. The control device diagnoses an abnormality of the heavy/light fuel ratio detection means based on a difference between the target air-fuel ratio and the air-fuel ratio detected by the air-fuel ratio detection means in the case that an engine temperature is within a specific temperature range.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种正确诊断酒精混合燃料的重/轻燃料比检测传感器的异常的内燃机的控制装置。 解决方案:能够使用重质燃料,轻燃料,醇燃料及其混合物作为燃料的内燃机的控制装置包括重/轻燃料比检测装置39,其检测重燃料与光的比例 燃料,以及检测排气的空燃比的空燃比检测单元41,计算出基于重/轻燃料比检测单元将空燃比设定在目标值的燃料喷射量。 在发动机温度在内部的情况下,控制装置基于由空燃比检测装置检测的目标空燃比与空燃比之间的差异来诊断重/轻燃料比检测装置的异常 一个特定的温度范围。 版权所有(C)2010,JPO&INPIT