会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2006112432A
    • 2006-04-27
    • JP2005348313
    • 2005-12-01
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKADA KOICHIMOGI KAZUHISAOTA TOKUJI
    • F02D9/02F02D13/02F02D41/04F02D41/22F02D45/00
    • Y02T10/40
    • PROBLEM TO BE SOLVED: To restrain pulsation generated in an intake pipe, when increasing opening of a throttle valve arranged in the intake pipe.
      SOLUTION: When trying to reduce a pump loss by increasing the opening of the throttle valve 56, predetermined opening smaller than the opening of the throttle valve 56 in full opening is set as an upper limit of the throttle valve opening on the basis of the size of the pulsation generated in the intake pipes 51 and 52, and the opening of the throttle valve 56 is increased so as not to exceed its limit. When a throttle valve 56' and an idle speed control valve 58 are arranged, an upper limit of the total opening of the throttle valve 56' and the idle speed control valve 58 is arranged.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了抑制进气管中产生的脉动,当增加布置在进气管中的节流阀的开度时。 解决方案:当通过增加节流阀56的开度来减小泵的损耗时,比完全打开时节流阀56的开度小的预定开度被设定为节气门开度的上限 在进气管51和52中产生的脉动的大小和节流阀56的打开增加,以便不超过其限制。 当设置节流阀56'和怠速控制阀58时,设置节流阀56'和怠速控制阀58的总开度的上限。 版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Internal combustion engine operated while switching compression ratio, air-fuel ratio and supercharging state
    • 内燃机在开关压缩比,空燃比和超高压状态下运行
    • JP2004218432A
    • 2004-08-05
    • JP2003002933
    • 2003-01-09
    • Toyota Motor Corpトヨタ自動車株式会社
    • MOGI KAZUHISA
    • F02D43/00F02D15/04F02D23/00F02D41/00F02D41/02F02D41/04F02D41/14
    • F02D41/0007F02D15/04F02D41/1475F02D2250/18Y02T10/12Y02T10/144
    • PROBLEM TO BE SOLVED: To simultaneously improve the thermal efficiency and maximum output of an internal combustion engine by appropriately switching the compression ratio, air-fuel ratio and supercharging state of the internal combustion engine according to the operating conditions. SOLUTION: With the increase of demand torque, the combination of the compression ratio, air-fuel ratio and supercharging state of the internal combustion engine is sequentially switched to (1) [high compression ratio state/lean air-fuel ratio/no supercharging]→(2) [high compression ratio state/lean air-fuel ratio/with supercharging]→(3) [low compression ratio state/lean air-fuel ratio/with supercharging]→(4) [low compression ratio state/stoichiometric air-fuel ratio/with supercharging]. The operating region of the internal combustion engine in the high compression ratio state or the lean air-fuel ratio state with high thermal efficiency can be taken large. In a high demand torque region, the internal combustion engine can be operated while supercharging a stoichiometric mixture at the low compression ratio, so that sufficiently large torque can be outputted. COPYRIGHT: (C)2004,JPO&NCIPI
    • 要解决的问题:通过根据操作条件适当地切换内燃机的压缩比,空燃比和增压状态,同时提高内燃机的热效率和最大输出。 解决方案:随着需求转矩的增加,内燃机的压缩比,空燃比和增压状态的组合依次切换为(1)[高压缩比状态/稀空燃比/ →(2)[高压缩比状态/稀空燃比/增压]→(3)[低压缩比状态/稀空燃比/增压]→(4)[低压缩比状态 /化学计量空燃比/增压]。 处于高压缩比状态的内燃机的工作区域或具有高热效率的稀空燃比状态可以被采用。 在高需求扭矩区域中,可以在低压缩比下对化学计量混合物进行增压的同时操作内燃机,从而可以输出足够大的扭矩。 版权所有(C)2004,JPO&NCIPI
    • 10. 发明专利
    • MISFIRE DETECTING DEVICE FOR INTERNAL COMBUSTION ENGINE
    • JP2003097343A
    • 2003-04-03
    • JP2002017905
    • 2002-01-28
    • DENSO CORPTOYOTA MOTOR CORP
    • TAKAKUWA EIJINAKADA KOICHIMOGI KAZUHISAOONISHI AKITO
    • F02P17/12F02D45/00
    • PROBLEM TO BE SOLVED: To improve accuracy for misfire detection. SOLUTION: Ion current generated by combustion in an engine cylinder is detected by an ignition plug. An actual frequency [a(%)] where an ion current-peak value [Pi] is equal or below a misfire criterion value [Vth] is obtained, and linear distribution characteristics of the ion current-peak value [Pi] at the time of normal combustion are predicted from a frequency 50% point [v50] and a standard deviation value [σ] to obtain a predicted frequency [A(%)] where the linear distribution of the ion current-peak value [Pi] is equal or below the misfire criterion value [Vth]. The predicted frequency [A(%)] is equivalent to a cumulative frequency of the combustion ion that is equal or below the misfire criterion value [Vth]. The difference [Δ(%)] between the actual frequency [a(%)] and the predicted frequency [A(%)] is obtained to determine any misfire based on whether or not the difference [Δ(%)] is greater than the criterion value. The difference [Δ(%)] is equivalent to a cumulative frequency of misfire alone where the cumulative frequency of the combustion ion as an error is subtracted from the actual frequency [a(%)] in which the peak value [Pi] is equal or below the misfire criterion value [Vth].