公开(公告)号：US06308671B1

公开(公告)日：2001-10-30

申请号：US09658596

申请日：2000-09-11

申请人： Dennis C. Reed ,  Martin Muller ,  Edward George Himes ,  Bart Hubert Schreurs ,  Joon-Ho Yoo

发明人： Dennis C. Reed ,  Martin Muller ,  Edward George Himes ,  Bart Hubert Schreurs ,  Joon-Ho Yoo

IPC分类号： F01L134

CPC分类号： F02D41/008 ,  F01L1/34 ,  F02D13/0219 ,  F02D13/0261 ,  F02D41/0002 ,  F02D2041/001 ,  F02D2200/0411 ,  F02D2200/703 ,  F02D2250/18 ,  Y02T10/18 ,  Y02T10/42

摘要： A method of improving the operating characteristics of an internal combustion engine equipped with electronic throttle control employs variable cam timing to vary the phasing of the intake valves and/or exhaust valves so as to achieve lower feed gas emissions and improved fuel economy while delivering as closely as possible the desired torque. The method can be implemented using a fuel-lead strategy or an air-lead strategy. Whenever a change is requested in the amount of torque, the method responds by adjusting the amount of fuel flow, the spark timing, the position of the throttle and/or the positions of the intake valves and/or the exhaust valves so as to deliver the desired torque. The method adjusts those operating parameters in a way that improves the ability of the engine to deliver the desired torque, produce less feed gas emissions, idle more stably, and consume less fuel.

摘要翻译： 一种改进配备有电子节气门控制的内燃机的操作特性的方法采用可变凸轮正时来改变进气门和/或排气门的定相，从而实现较低的进料气体排放和改善的燃料经济性，同时紧密地传送 尽可能地希望的扭矩。 该方法可以使用燃料引导策略或空中牵引策略来实现。 每当需要改变扭矩量时，该方法通过调节燃料流量，火花正时，节气门位置和/或进气门和/或排气门的位置来进行响应，以便输送 所需扭矩。 该方法以提高发动机提供所需扭矩，产生较少进料气体排放，更稳定怠速和消耗较少燃料的能力的方式调整这些操作参数。

公开(公告)号：US06681172B2

公开(公告)日：2004-01-20

申请号：US10079965

申请日：2002-02-21

申请人： Jeffrey M. Pfeiffer ,  Joon-Ho Yoo

发明人： Jeffrey M. Pfeiffer ,  Joon-Ho Yoo

IPC分类号： G06G770

CPC分类号： F02D35/025 ,  F01M5/005 ,  F01M2011/1473 ,  F01P11/16 ,  F01P2023/00 ,  F01P2025/08 ,  F01P2025/13 ,  F01P2025/64

摘要： An improved method of estimating the oil temperature of an internal combustion engine models the net heat flow through the oil during operation of the engine based on known engine operating parameters and integrates the net heat flow to update the oil temperature estimate. The net heat flow components include heat added to the oil due to fuel combustion and heat rejected from the oil to the engine coolant and atmospheric air, and are based on heat transfer coefficients that are adjusted to take into account variations in engine speed, vehicle speed and cooling fan operation.

摘要翻译： 基于已知的发动机运行参数，一种改进的内燃机的油温估计方法来模拟在发动机运行期间通过油的净热流，并且将净热流积分以更新油温估计。 净热流分量包括由燃料燃烧引起的加入油中的热量和从油向发动机冷却剂和大气空气排出的热量，并且基于被调整以考虑发动机转速，车辆速度变化的传热系数 冷却风扇运行。