公开(公告)号：US6055476A

公开(公告)日：2000-04-25

申请号：US203675

申请日：1998-12-01

申请人： Takahiro Yoshino

发明人： Takahiro Yoshino

IPC分类号： F02D9/02 ,  F02D11/10 ,  F02D41/02 ,  F02D41/14 ,  F02D41/30 ,  F02D43/00 ,  F02D45/00

CPC分类号： F02D41/021 ,  F02D11/105 ,  F02D43/00 ,  F02D2041/389 ,  F02D2250/18 ,  F02D41/3029 ,  Y02T10/42

摘要： An engine torque control system controls an intake air quantity with a throttle valve and a fuel supply quantity with a fuel injector so as to obtain a target engine torque and a target air fuel ratio in accordance with engine operating conditions. The torque control system comprises a first section for calculating a target equivalent ratio, a second section for calculating a unit demand throttle opening area which is a demand throttle opening area per unit displacement for one engine revolution, in accordance with the accelerator opening degree and the engine speed, a third section for calculating a target base intake air quantity from the unit demand throttle opening area, a fourth section for calculating a target control intake air quantity from the target base intake air quantity and the target equivalent ratio, a fifth section for calculating a desired target throttle opening degree from the target control intake air quantity and the engine speed, and a sixth section for controlling the actual throttle opening degree of the throttle valve to the target throttle opening degree.

摘要翻译： 发动机转矩控制系统利用燃料喷射器利用节气门和燃料供给量来控制进气量，以便根据发动机运行条件获得目标发动机转矩和目标空燃比。 扭矩控制系统包括用于计算目标当量比的第一部分，用于根据加速器开度计算作为一个发动机转速的每单位位移的需求节气门开度面积的单位需求节气门开度面积的第二部分 发动机转速，用于从单位需求节气门开度区域计算目标基准吸入空气量的第三部分，用于从目标基准吸入空气量计算目标控制吸入空气量的第四部分和目标当量比，第五部分 从目标控制进气量和发动机转速计算出期望的目标节气门开度;以及第六部分，用于将节流阀的实际节气门开度控制到目标节气门开度。