发明名称 |
CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE |
摘要 |
An object is to achieve stable diesel combustion and improvement in the thermal efficiency of the diesel combustion in an internal combustion engine using a fuel having a relatively high self-ignition temperature. A control apparatus for an internal combustion engine includes a fuel injection valve capable of injecting fuel into a combustion chamber and an ignition device whose position relative to the fuel injection valve is set in such a way that it can ignite fuel spray directly. The apparatus causes pre-injected fuel to burn and generates unburned residue of the pre-injected fuel in the combustion chamber by pre-injection performed at a predetermined pre-injection time during the compression stroke and ignition of pre-spray formed by the pre-injection by the ignition device. Then, the apparatus starts main injection at such a predetermined injection start time before the top dead center of the compression stroke that enables combustion to be started by flame generated by combustion of pre-injected fuel to cause the unburned residue of the pre-injected fuel and the main-injected fuel to burn by causing the unburned residue of the pre-injected fuel and the main-injected fuel to self-ignite and causing at least a portion of the main-injected fuel to burn by diffusion combustion. |
申请公布号 |
US2016333817(A1) |
申请公布日期 |
2016.11.17 |
申请号 |
US201515112233 |
申请日期 |
2015.01.16 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
OCHI Yuta;KASHIWAGURA Toshimi |
分类号 |
F02D41/40;F02D37/02;F02D41/26 |
主分类号 |
F02D41/40 |
代理机构 |
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代理人 |
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主权项 |
1. A control apparatus for an internal combustion engine comprising:
a fuel injection valve capable of injecting gasoline as fuel into a combustion chamber of said internal combustion engine; an ignition plug whose position relative to the fuel injection valve is set in such a way that fuel spray injected through said fuel injection valve passes through an ignition-capable region and the ignition plug can spark-ignite the fuel spray directly; and a controller comprising at least one processor configured to cause said fuel injection valve to perform pre-injected at a predetermined pre-injection time during a compression stroke and cause said ignition plug to spark-ignite pre-spray formed by said pre-injection, thereby burning the pre-injected fuel and generating unburned residue of said pre-injected fuel in said combustion chamber; wherein said controller starts main injection at such a predetermined injection start time before the top dead center of the compression stroke that enables combustion to be started by flame of pre-injected fuel, thereby burning the unburned residue of the pre-injected fuel and the main-injected fuel in such a way that the unburned residue of the pre-injected fuel and the main-injected fuel self-ignite and at least a portion of the main-injected fuel is burned by diffusion combustion. |
地址 |
Toyota-shi, Aichi JP |