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
    • 2. 发明授权
    • Engine control device
    • 发动机控制装置
    • US07565238B2
    • 2009-07-21
    • US12018761
    • 2008-01-23
    • Shinji NakagawaKazuhiko KanetoshiKozo KatogiTakanobu IchiharaMinoru Osuga
    • Shinji NakagawaKazuhiko KanetoshiKozo KatogiTakanobu IchiharaMinoru Osuga
    • F02D41/34F02D35/02G06F19/00
    • F02D41/1497F02D35/023F02D41/0002F02D41/042F02D2200/1004F02D2200/1006F02D2250/18
    • Exhaust emission control is exercised to restrict the exhaust amounts [g] of HC, CO, NOx, and the like. However, since the intake air amount for startup unduly increases due to an engine speed overshoot for startup, the exhaust amounts of HC, CO, and NOx increase excessively. Therefore, there is a need for optimizing the intake air amount for startup. The present invention proposes an engine startup control method that assures excellent startability and low exhaust emissions (small gas amount). Disclosed is an engine control device for starting an engine (from its stop state). The engine control device includes a section for setting a target engine operating state of each combustion; a section for detecting an actual engine operating state of each combustion; and a section for computing a control parameter for each subsequent combustion in accordance with the target engine operating state of each combustion and the actual engine operating state of each combustion.
    • 执行排气控制以限制HC,CO,NOx等的排气量[g]。 然而,由于由于起动时的发动机转速过冲而引起的起动用吸入量过度增加,所以HC,CO,NOx的排出量过度增加。 因此,需要优化起动时的吸入空气量。 本发明提出一种确保优异的起动性和低排气(小气量)的发动机起动控制方法。 公开了一种用于起动发动机(从其停止状态)的发动机控制装置。 发动机控制装置包括用于设定每个燃烧的目标发动机运转状态的部分; 用于检测每个燃烧的实际发动机运转状态的部分; 以及用于根据每次燃烧的目标发动机运转状态和每次燃烧的实际发动机运转状态计算每次后续燃烧的控制参数的部分。
    • 3. 发明申请
    • DIAGNOSTIC DEVICE AND METHOD OF ENGINE EXHAUST PURIFYING SYSTEM
    • 诊断装置和发动机排气净化系统的方法
    • US20080028828A1
    • 2008-02-07
    • US11830130
    • 2007-07-30
    • Yoichi IihoshiShinji NakagawaToshio HoriYoshikuni Kurashima
    • Yoichi IihoshiShinji NakagawaToshio HoriYoshikuni Kurashima
    • G01N7/00
    • F02D41/1443F02D41/1441F02D41/1456F02D41/1495Y02T10/22
    • A diagnostic device and method of an engine exhaust purifying system, which perform active control of an air-fuel ratio and can make diagnosis of air-fuel ratio sensors, catalysts, etc. in the engine exhaust purifying system with high accuracy and reliability while avoiding a worsening of exhaust emissions, an increase of revolution variations, etc. The diagnostic device comprises an exhaust air-fuel ratio control unit for performing control to keep an air-fuel ratio of exhaust gas flowing into a main catalyst near a stoichiometric ratio in accordance with outputs of downstream air-fuel ratio sensors, a rich/lean switching unit for switching over an air-fuel ratio in each of the cylinder groups to be rich or lean, thereby making diagnosis of each downstream air-fuel ratio sensor, a response detecting unit for detecting a response of the downstream air-fuel ratio sensor when the rich/lean switching of the air-fuel ratio in each cylinder group is performed, and a downstream sensor deterioration determining unit for determining a deterioration of the downstream air-fuel ratio sensor based on the detected response.
    • 一种发动机排气净化系统的诊断装置和方法,其能够主动地控制空燃比并且可以高精度和可靠地在发动机排气净化系统中对空燃比传感器,催化剂等进行诊断,同时避免 废气排放恶化,旋转变化的增加等。诊断装置包括排气空燃比控制单元,用于进行控制以使排气流入主催化剂的空燃比接近化学计量比 具有下游空燃比传感器的输出,用于切换每个气缸组中的空燃比的丰富/稀薄切换单元以富或稀,从而对每个下游空燃比传感器进行诊断,响应 检测单元,用于当执行每个气缸组中的空燃比的丰富/稀薄切换时,检测下游空燃比传感器的响应;以及下游传感器测定 确定单元,用于基于检测到的响应来确定下游空燃比传感器的劣化。