公开(公告)号：US20160102603A1

公开(公告)日：2016-04-14

申请号：US14844649

申请日：2015-09-03

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yosuke MATSUMOTO ,  Noriyasu ADACHI ,  Yusuke SAITO

IPC: F02B37/18 ,  F02D41/00

CPC classification number: F02B37/186 ,  F02D41/0007 ,  F02D41/02 ,  F02D41/1454 ,  F02D41/40 ,  Y02T10/144 ,  Y02T10/44

Abstract: In an internal combustion engine provided with a turbocharger, a throttle valve, and an actuator, if there is a request for switching from stoichiometric combustion to lean combustion and also there is a request for raising a supercharging pressure after the switching of combustion to a pressure higher than the supercharging pressure before the switching of combustion, the supercharging pressure reserve control for raising the supercharging pressure while a requested intake air amount S required for realizing a requested torque of the internal combustion engine in the stoichiometric combustion is maintained is executed by using the throttle valve and the actuator. After the supercharging pressure reserve control is finished, the switching of combustion is executed. When an actual supercharging pressure reaches the lower of a requested supercharging pressure L and a realizable supercharging pressure, the supercharging pressure reserve control is finished.

Abstract translation: 在设置有涡轮增压器，节流阀和致动器的内燃机中，如果存在从化学计量燃烧切换到稀燃的请求，并且还存在在将燃烧切换到压力之后提高增压压力的要求 高于燃烧切换前的增压压力时，在维持用于实现理论燃烧中的内燃机的要求转矩所需要求的吸入空气量S的情况下，通过使用用于提高增压压力的增压压力保持控制 节流阀和执行器。 增压控制完成后，执行燃烧切换。 当实际增压压力达到要求的增压压力L和可实现的增压压力的较低值时，增压压力储备控制结束。

公开(公告)号：US20160090935A1

公开(公告)日：2016-03-31

申请号：US14892696

申请日：2013-05-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Satoru TANAKA ,  Satoshi YOSHIZAKI ,  Yusuke SAITO ,  Ryutaro MORIGUCHI ,  Noriyasu ADACHI ,  Yosuke MATSUMOTO ,  Naoya TAKAGI

IPC: F02D41/26 ,  F02D41/34 ,  F02D41/00

CPC classification number: F02D41/26 ,  F02D11/105 ,  F02D13/0234 ,  F02D23/00 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/0007 ,  F02D41/3029 ,  F02D41/307 ,  F02D41/34 ,  F02D2041/001 ,  F02D2250/21 ,  F02P5/1504 ,  Y02T10/42 ,  Y02T10/46

Abstract: A target air amount for achieving a requested torque is back-calculated from the requested torque using a virtual air-fuel ratio. The virtual air-fuel ratio is changed from a first air-fuel ratio to a second air-fuel ratio in response to a condition for switching an operation mode from operation in the first air-fuel ratio to operation in the second air-fuel ratio being satisfied. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, an interval of time passes and the target air-fuel ratio is then switched from the first air-fuel ratio to a third air-fuel ratio that is an intermediate air-fuel ratio between the first air-fuel ratio and the second air-fuel ratio. The target air-fuel ratio is temporarily held at the third air-fuel ratio, and is thereafter switched from the third air-fuel ratio to the second air-fuel ratio.

Abstract translation: 使用虚拟空燃比，根据所要求的扭矩来回复用于实现要求转矩的目标空气量。 响应于将操作模式从第一空燃比中的操作切换到在第二空燃比中的操作的条件，虚拟空燃比从第一空燃比变为第二空燃比 满意 在虚拟空燃比从第一空燃比变为第二空燃比之后，经过一段时间，将目标空燃比从第一空燃比转换为第三空气 - 燃料比，其是所述第一空燃比和所述第二空燃比之间的中间空燃比。 目标空燃比暂时保持在第三空燃比，然后从第三空燃比转换为第二空燃比。