公开(公告)号：US20020162535A1

公开(公告)日：2002-11-07

申请号：US10097251

申请日：2002-03-15

Applicant: UNISIA JECS CORPORATION

Inventor： Kenichi Machida

IPC: F02P005/00

CPC classification number: F02D13/0207 ,  F01L1/34 ,  F01L1/3442 ,  F01L2001/34469 ,  F01L2800/00 ,  F02D13/0219 ,  F02D13/0261 ,  F02D2041/001 ,  F02D2200/0402 ,  F02D2200/0406 ,  Y02T10/18

Abstract: In an internal combustion engine provided with a variable valve operating apparatus which variably changes a valve operating characteristic of at least one of intake and exhaust valves, a reference intake pipe pressure and a reference fresh air ratio corresponding to a reference operating condition of the variable valve operating apparatus are computed based on the detection value of the engine operating condition, a fresh air ratio correction amount corresponding to an operating condition of the variable valve operating apparatus is computed based on the detection value of the intake pipe pressure and the reference intake pipe pressure, the reference fresh air ratio is corrected based on the computed fresh air ratio correction amount to compute a final fresh air ratio, and an operating amount of the control object in the internal combustion engine is computed based on the final fresh air ratio to operate the control object.

Abstract translation: 在设置有可变阀操作装置的内燃机中，所述可变气门操作装置可变地改变进气门和排气门中的至少一个的阀的工作特性，参考进气管压力和参考新鲜空气比对应于可变阀的参考运行状态 基于发动机工作条件的检测值来计算操作装置，基于进气管压力和基准进气管压力的检测值来计算与可变气门操作装置的运转状态对应的新鲜空气比修正量 基于所计算的新鲜空气比校正量校正参考新鲜空气比，以计算最终新鲜空气比，并且基于最终新鲜空气比来计算内燃机中的控制对象的操作量，以操作 控制对象。

公开(公告)号：US20020017276A1

公开(公告)日：2002-02-14

申请号：US09925429

申请日：2001-08-10

Applicant: UNISIA JECS CORPORATION

Inventor： Kenichi Machida

IPC: F01L001/34

CPC classification number: F02D41/18 ,  F01L1/34 ,  F01L2710/00 ,  F01L2800/00 ,  F02B2075/125 ,  F02D13/0207 ,  F02D13/0215 ,  F02D13/0261 ,  F02D41/0002 ,  F02D41/0062 ,  F02D2041/001 ,  F02D2200/0406 ,  F02D2200/0414 ,  Y02T10/123 ,  Y02T10/18 ,  Y02T10/42

Abstract: In an electronically controlled fuel injection apparatus of a speed density type, a new air intake efficiency correction value for correcting an intake pressure is calculated based on the intake pressure, an engine rotation speed, and an advance angle amount of valve timing.

Abstract translation: 在速度密度型的电子控制式燃料喷射装置中，基于进气压力，发动机转速和气门正时的提前角量来计算用于校正进气压力的新的进气效率校正值。

公开(公告)号：US20040216708A1

公开(公告)日：2004-11-04

申请号：US10851140

申请日：2004-05-24

Applicant: UNISIA JECS CORPORATION

Inventor： Kenichi Machida

IPC: F01L001/34 ,  F02M051/00

CPC classification number: F01L13/0026 ,  F01L1/34 ,  F01L2001/0537 ,  F01L2013/0073 ,  F01L2105/00 ,  F02B2075/125 ,  F02B2275/18 ,  F02D13/023 ,  F02D2041/001 ,  Y02T10/18

Abstract: In an internal combustion engine equipped with a variable valve operating mechanism that performs a valve timing control and a valve lift amount control of at least one of an intake valve and an exhaust valve, target values of the valve timing and the valve lift amount set based on an engine operating condition are limited by a limit value to limit a control range of one of the valve timing and the valve lift amount in accordance with a control state of the other of the valve timing and the valve lift amount, so that the valve timing and the valve lift amount are controlled based on the respective target values one of which has been limited as above.

公开(公告)号：US20020195071A1

公开(公告)日：2002-12-26

申请号：US10175276

申请日：2002-06-20

Applicant: UNISIA JECS CORPORATION

Inventor： Hirokazu Shimizu ,  Kenichi Machida

IPC: F01L001/34

CPC classification number: F01L13/0026 ,  F01L13/0021 ,  F01L2013/0073

Abstract: In a variable valve mechanism that changes an opening characteristic of an engine valve by a rotation force of a direct current motor, an electric current to be supplied to the direct current motor is forcibly lowered by providing restriction to a control signal of a power transistor that supplies the electric current to the direct current motor, or providing restriction to a change speed of target value of the opening characteristic, when an engine temperature is high.

Abstract translation: 在通过直流电动机的旋转力改变发动机气门的开启特性的可变阀机构中，通过对功率晶体管的控制信号提供限制，强制降低供给直流电动机的电流， 当发动机温度高时，向直流电动机供给电流，或者限制开启特性的目标值的变化速度。

公开(公告)号：US20020139329A1

公开(公告)日：2002-10-03

申请号：US10101413

申请日：2002-03-20

Applicant: UNISIA JECS CORPORATION

Inventor： Kenichi Machida

IPC: F01L001/34

CPC classification number: F01L13/0026 ,  F01L1/34 ,  F01L2001/0537 ,  F01L2013/0073 ,  F01L2105/00 ,  F02B2075/125 ,  F02B2275/18 ,  F02D13/023 ,  F02D2041/001 ,  Y02T10/18

Abstract: In an internal combustion engine equipped with a variable valve operating mechanism that performs a valve timing control and a valve lift amount control of at least one of an intake valve and an exhaust valve, target values of the valve timing and the valve lift amount set based on an engine operating condition are limited by a limit value to limit a control range of one of the valve timing and the valve lift amount in accordance with a control state of the other of the valve timing and the valve lift amount, so that the valve timing and the valve lift amount are controlled based on the respective target values one of which has been limited as above.

Abstract translation: 在配备有执行气门正时控制的可变气门操作机构和进气门和排气门中的至少一个的气门升程量控制的内燃机中，基于设定的气门正时和气门升程量的目标值 在发动机工作状态下受到限制值的限制，以根据气门正时和气门升程量的另一个的控制状态来限制气门正时和气门升程量之一的控制范围，使得阀 基于相应的目标值控制正时和气门升程量，其中一个目标值已被限制如上。

公开(公告)号：US20030019475A1

公开(公告)日：2003-01-30

申请号：US10201199

申请日：2002-07-24

Applicant: UNISIA JECS CORPORATION

Inventor： Kenichi Machida ,  Satoru Watanabe ,  Makoto Nakamura

IPC: F02D013/00

CPC classification number: F02D13/02 ,  F01L13/0021 ,  F01L13/0026 ,  F01L2013/0073 ,  F02B75/22 ,  F02B2075/1824 ,  F02D13/0226 ,  F02D41/008 ,  F02D41/0082 ,  F02D41/187 ,  F02D41/221 ,  F02D2041/001 ,  Y02T10/18

Abstract: A plurality of intake air amount control systems are provided for diagnosing a failure of each intake air amount control system. At the failure of any of them, a fail-safe control is performed using a normal intake air amount control system.

Abstract translation: 提供多个进气量控制系统，用于诊断每个进气量控制系统的故障。 在任何一个故障时，使用正常进气量控制系统执行故障安全控制。

公开(公告)号：US20010039938A1

公开(公告)日：2001-11-15

申请号：US09903761

申请日：2001-07-13

Applicant: UNISIA JECS CORPORATION

Inventor： Kenichi Machida ,  Masahiro Iriyama ,  Mikio Nozaki

IPC: F02D011/10 ,  F02D001/00

CPC classification number: F02D11/107 ,  F02D11/106 ,  F02D2400/08

Abstract: The apparatus comprises two accelerator position sensors and two throttle position sensors, and when one out of said two accelerator position sensors or said two throttle position sensors fails to operate, a limitation is added to the increase in accelerator position for the output characteristics of the accelerator position sensor. Thereby, the vehicle is enabled to travel at a minimum speed necessary without excessively increasing the engine output. When one of the two throttle position sensors fails to operate, the fuel injection quantity may be set based on the detection value of the accelerator position, which enables the vehicle to be driven by approximately the desired speed without excessively increasing the engine output.