公开(公告)号：US09695782B2

公开(公告)日：2017-07-04

申请号：US14736645

申请日：2015-06-11

Applicant: DENSO CORPORATION

Inventor： Ryo Tamura ,  Daiji Isobe

IPC: G01M15/04 ,  F02M25/08

CPC classification number: F02M25/0818 ,  F02M25/0809

Abstract: An abnormality diagnosis device introduces a pressure into a reference-pressure detecting portion by utilizing a pressure introducing portion to detect a reference pressure correlative to a reference orifice, detects a purge-valve closed pressure that is a pressure in an evaporation system of when a pressure is introduced into the evaporation system by the pressure introducing portion after the purge valve is controlled to be closed, and detects a purge-valve open pressure that is a pressure in the evaporation system of when a pressure is introduced into the evaporation system by the pressure introducing portion after the purge valve is controlled to be open. The abnormality diagnosis device determines whether a leakage abnormality of the evaporation system and a fixed open abnormality are generated, based on a magnitude relation between the reference pressure, the purge-valve closed pressure, and the purge-valve open pressure.

公开(公告)号：US09227624B2

公开(公告)日：2016-01-05

申请号：US14527011

申请日：2014-10-29

Applicant: DENSO CORPORATION

Inventor： Yamato Sakakibara ,  Daiji Isobe

IPC: B60W10/02 ,  B60W20/00 ,  B60W10/06 ,  B60W10/08

CPC classification number: B60W20/10 ,  B60W10/06 ,  B60W10/08 ,  B60W20/15 ,  B60W30/20 ,  B60W2030/206 ,  B60W2510/0638 ,  B60W2710/0605 ,  B60W2710/0633 ,  B60W2710/0666 ,  Y02T10/6286 ,  Y10S903/93

Abstract: A hybrid vehicle having a power-transferable combination of an engine and a motor-generator is controlled to prevent a vehicle vibration while preventing an over-revolution of the engine when the engine is started. In such control, while the engine is determined to be in a starting state, an instruction value correction is performed for correcting a per-unit-time change amount of an actuator instruction value, such as a target air intake amount and/or a target air load amount, according to a target output of the engine so that a steep increase of the engine revolution speed is prevented. With such a correction of the instruction value, an air intake amount of the engine and the engine revolution speed is gradually increased, thereby preventing the over-revolution of the engine and a steep increase of a load torque of the motor-generator, which prevents vehicle vibration when the engine is started.

Abstract translation: 控制具有发动机和电动发电机的可转换组合的混合动力车辆，以防止车辆振动，同时防止发动机起动时发动机的过度转动。 在这样的控制中，当发动机被确定为起动状态时，执行指令值校正，以校正执行器指令值的每单位时间变化量，例如目标进气量和/或目标 空气负荷量，根据发动机的目标输出，防止发动机转速急剧上升。 通过这种指令值的校正，发动机的进气量和发动机转速逐渐增加，从而防止发动机的过度转动和电动发电机的负载转矩的急剧增加，从而防止 发动机启动时的车辆振动。