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Invention Grant
US08386154B2 Internal combustion engine system, vehicle having internal combustion engine system, and control method of internal combustion engine system 有权
内燃机系统，具有内燃机系统的车辆，以及内燃机系统的控制方法

Internal combustion engine system, vehicle having internal combustion engine system, and control method of internal combustion engine system
Abstract:
The execution operation curve is set by switching from the EGR-off time operation curve to the EGR-on time operation curve when the EGR is started with the cooling water temperature being more than or equal to the first temperature, the execution operation curve is set by switching from the EGR-on time operation curve to the EGR-off time operation curve f when the cooling water temperature becomes smaller than the second temperature that is lower than the first temperature, and controls the engine. Accordingly, frequent changes of the execution operation curve are restricted. As a result, the operation state of the engine with the EGR performed as necessary is effectively prevented from becoming unstable further.
Abstract(Chinese):

通过在EGR冷却水温度大于等于第一温度的情况下开始EGR时，从EGR关闭时间运转曲线切换到EGR导通时间运转曲线来设定执行运转曲线，执行运转曲线被设定 当冷却水温度比第一温度低的第二温度变小时，通过从EGR导通时间运转曲线切换到EGR关闭时间运转曲线f，并控制发动机。 因此，执行操作曲线的频繁变化受到限制。 结果，有效地防止了根据需要执行EGR的发动机的运转状态。

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