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1.发明授权Closed loop bias air/fuel ratio offset to enhance catalytic converter efficiency 失效闭环偏置空气/燃料比偏移以提高催化转化器的效率
公开(公告)号：US5974785A
公开(公告)日：1999-11-02
申请号：US786387
申请日：1997-01-16
CPC分类号： F02D41/024 , F01N2430/06 , F01N3/20 , Y02T10/26
摘要： A method and system for reducing time required for a catalyst to reach optimum operating temperature control an air/fuel ratio based on the catalyst temperature to supply excess air to the catalyst during closed loop lambda control. A lambda bias or offset is varied as a function of the catalyst temperature, engine speed, and engine load to bias the air/fuel ratio lean of the stoichiometric ratio. Excess air may be supplied to the catalyst for a predetermined period after a cold engine start or at any time that the catalyst temperature is below its optimum operating temperature for efficient conversion. The bias or offset is reduced to zero after the catalyst reaches a desired operating temperature or the predetermined time period expires.
摘要翻译： 一种用于减少催化剂达到最佳操作温度所需时间的方法和系统，其基于催化剂温度控制空气/燃料比，以在闭环λ控制期间向催化剂供应过量的空气。 λ偏移或偏移作为催化剂温度，发动机转速和发动机负荷的函数而变化，以偏置化学计量比的空气/燃料比。 在发动机冷起动之后，或者在催化剂温度低于其最佳工作温度以便有效转化的任何时间，可以向催化剂供给过多的空气至预定的时间。 在催化剂达到所需工作温度或预定时间段到期后，偏压或偏移量减小到零。
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公开(公告)号：US06272850B1
公开(公告)日：2001-08-14
申请号：US09207385
申请日：1998-12-08
申请人： Robert Michael Grant , Eugene S. Zimmerman , Michael John Cullen , Patrick Joseph Curran , Richard Tuttle
发明人： Robert Michael Grant , Eugene S. Zimmerman , Michael John Cullen , Patrick Joseph Curran , Richard Tuttle
IPC分类号： F01N300
CPC分类号： F01N3/2046 , F02D41/0235 , F02D41/024 , F02D41/1446 , F02D41/1475 , Y02T10/26
摘要： An electronic engine controller controls the catalytic converter temperature by generating a desired rich air/fuel ratio that will maintain the catalytic converter at a predetermined temperature. The actual air/fuel ratio is ramped to the desired air/fuel ratio at a first rate when the catalytic converter temperature is greater than a first predetermined temperature. The actual air/fuel ratio is ramped to the desired air/fuel ratio at a second rate when the catalytic converter temperature is greater than a second predetermined temperature but less than the first predetermined temperature.
摘要翻译： 电子发动机控制器通过产生将催化转化器保持在预定温度的期望的浓空气/燃料比来控制催化转化器温度。 当催化转化器温度大于第一预定温度时，实际的空气/燃料比以第一速率斜升到所需的空气/燃料比。 当催化转化器温度大于第二预定温度但小于第一预定温度时，实际空气/燃料比以第二速率倾斜到所需的空气/燃料比。
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公开(公告)号：US6112731A
公开(公告)日：2000-09-05
申请号：US217300
申请日：1998-12-21
CPC分类号： F02D41/1458 , F02D41/1441 , F02D41/1495 , F02D41/22 , F02D41/1456 , F02D41/187 , Y02T10/40
摘要： An engine diagnostic method for an engine having a switching exhaust gas sensor and a fuel system uses the switching exhaust gas sensor during open loop fuel enrichment to diagnose fuel system degradation, including fuel filter degradation.
摘要翻译： 具有开关排气传感器和燃料系统的发动机的发动机诊断方法在开环燃料浓缩期间使用切换废气传感器来诊断燃料系统劣化，包括燃料过滤器劣化。
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公开(公告)号：US6043737A
公开(公告)日：2000-03-28
申请号：US346950
申请日：1999-07-01
CPC分类号： B60C23/0408 , B60C23/06
摘要： A tire monitoring and warning assembly 10 which monitors and measures attributes or characteristics of at least one of the selectively inflatable tires 14-20 of a vehicle 12 and which compares the obtained measurements with a stored value which represents a value of the attribute or characteristic occurring or existing when the at least one tire 14-20 is desirably inflated, and which, based upon the comparison, warns the driver if the at least one of the tires 14-20 is deflated.
摘要翻译： 一种轮胎监测和警告组件10，其监测和测量车辆12的选择性充气轮胎14-20中的至少一个的属性或特性，并将所获得的测量值与表示所发生的属性或特征的值的存储值进行比较 或者当至少一个轮胎14-20期望膨胀时存在，并且基于该比较，如果轮胎14-20中的至少一个是放气，则警告驾驶员。
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公开(公告)号：US06422214B1
公开(公告)日：2002-07-23
申请号：US09638691
申请日：2000-08-15
申请人： Brent Edward Sealy , Jae Doo Chung , Jeffrey Allen Doering , Marianne L. Vykydal , Patrick Joseph Curran
发明人： Brent Edward Sealy , Jae Doo Chung , Jeffrey Allen Doering , Marianne L. Vykydal , Patrick Joseph Curran
IPC分类号： F02M3704
CPC分类号： F02M25/08 , F02D41/0042 , F02D41/0045 , F02D41/2451 , F02D41/2454 , F02D2200/703
摘要： A method is presented for controlling fuel tank pressure in an internal combustion engine. The engine, the fuel tank and the carbon canister are connected in a three-way connection. The engine can be selectively isolated by a purge control valve, and the fuel tank can be selectively isolated by a fuel tank control valve. The operation of both valves is coordinated by an electronic engine controller. By isolating the fuel tank during the carbon canister purge, better estimate of the fuel fraction flowing into the engine can be achieved, thereby improving fuel economy.
摘要翻译： 提出了一种用于控制内燃机中的燃料箱压力的方法。 发动机，燃油箱和碳罐以三通连接。 发动机可以通过清洗控制阀选择性隔离，并且燃料箱可以通过燃料箱控制阀选择性隔离。 两个阀的操作由电子发动机控制器协调。 通过在碳罐吹扫期间隔离燃料箱，可以更好地估计流入发动机的燃料部分，从而提高燃油经济性。
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6.发明授权Method and apparatus for reducing engine cycling in hybrid electric vehicle 有权用于减少混合动力汽车发动机循环的方法和装置公开(公告)号：US06624527B1
公开(公告)日：2003-09-23
申请号：US09663515
申请日：2000-09-15
IPC分类号： F02N1106
CPC分类号： B60W20/00 , B60K6/48 , B60K6/543 , B60L2240/445 , B60T13/46 , B60T17/02 , B60W10/06 , B60W10/08 , B60W10/30 , B60W2510/068 , B60W2540/12 , F01N3/2013 , F01N2550/02 , F02D41/0045 , F02D41/024 , F02D41/042 , F02D41/062 , F02D41/083 , F02D2250/41 , F02N11/0829 , F02N11/084 , F02N2200/026 , F02N2200/0806 , F02N2200/0807 , Y02A50/2322 , Y02T10/26 , Y02T10/48 , Y02T10/54 , Y02T10/6221 , Y02T10/6286
摘要： A method and system that responds to non-propulsive needs of a hybrid vehicle by setting at least two thresholds related to engine support: one threshold to keep a running engine ON and a another threshold to turn the engine ON from an OFF state.
摘要翻译： 通过设置与发动机支持相关的至少两个阈值来响应混合动力车辆的非推进需求的方法和系统：一个阈值以使运行中的发动机接通，另一个阈值使发动机从OFF状态转为ON。
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公开(公告)号：US06378505B1
公开(公告)日：2002-04-30
申请号：US09639651
申请日：2000-08-15
申请人： Jeffrey Allen Doering , Brent Edward Sealy , Jae Doo Chung , Marianne L. Vykydal , Patrick Joseph Curran
发明人： Jeffrey Allen Doering , Brent Edward Sealy , Jae Doo Chung , Marianne L. Vykydal , Patrick Joseph Curran
IPC分类号： F02M3302
CPC分类号： F02M25/0809
摘要： A method is presented for diagnosing a condition in the fuel vapor purge system. The engine, the fuel tank and the carbon canister are connected in a three-way connection. The engine can be selectively isolated by a purge control valve, and the fuel tank can be selectively isolated by a fuel tank control valve. The operation of both valves is coordinated by an electronic engine controller. By isolating the fuel tank, and comparing the actual rate of change of the internal tank pressure (from the tank pressure sensor) to the estimated rate of change (from engine operating conditions) it is possible to determine if a condition occurred, and whether it is in the tank or in the vapor purge lines.
摘要翻译： 提出了一种用于诊断燃料蒸汽吹扫系统中的状况的方法。 发动机，燃油箱和碳罐以三通连接。 发动机可以通过清洗控制阀选择性隔离，并且燃料箱可以通过燃料箱控制阀选择性隔离。 两个阀的操作由电子发动机控制器协调。 通过隔离燃料箱，并将内部罐体压力（从油箱压力传感器）的实际变化率与估计的变化率（从发动机运行状态）进行比较，可以确定是否发生了状况，以及是否 在罐中或蒸汽吹扫管线中。
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8.发明授权
公开(公告)号：US5671718A
公开(公告)日：1997-09-30
申请号：US546626
申请日：1995-10-23
CPC分类号： F02M25/0809 , F02D41/0045 , F02D41/0032
摘要： A method and system for determining a level of vapor generated by an evaporative system. The evaporative system is closed to atmosphere. An initial pressure in a fluid-filled tank is sensed and, after a predetermined amount of time, a second pressure in the tank is sensed. A pressure difference is determined based on the sensed initial pressure and the sensed second pressure. The level of vapor generated by the evaporative system is determined based on the pressure difference.
摘要翻译： 一种用于确定由蒸发系统产生的蒸汽水平的方法和系统。 蒸发系统与大气隔绝。 感测流体填充的罐中的初始压力，并且在预定量的时间之后，感测到罐中的第二压力。 基于感测的初始压力和感测的第二压力来确定压力差。 由蒸发系统产生的蒸汽水平基于压力差来确定。
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9.发明授权System and method for regenerative and antiskid braking within an electric vehicle 有权电动车辆内再生和防滑制动系统及方法公开(公告)号：US07281770B1
公开(公告)日：2007-10-16
申请号：US09634823
申请日：2000-08-08
IPC分类号： B60T8/64
CPC分类号： B60T8/00 , B60L7/18 , B60T1/10 , B60T8/17616 , B60T2270/602 , B60W10/08 , B60W10/184 , B60W30/18127 , B60W2510/244 , Y02T90/16
摘要： A braking system 12 for use with an electric vehicle 10 including an electric motor/generator assembly 14, and a conventional electrical energy storage device 16. Motor/generator 14 selectively drives wheels 20 of vehicle 12. The braking system 12 includes a motor control module 26 which is communicatively coupled to motor/generator 14 and which selectively causes motor/generator 14 to provide a regenerative braking function at wheels 20 of vehicle 10. Braking system 10 further includes an antiskid braking system which selectively provides friction braking at wheels 20 and 24 of vehicle 10. The braking system 12 is effective to detect antiskid braking events at each of the wheels 20, 24, to selectively provide an antiskid braking function at each of wheels 20, 24 where the antiskid braking events are detected, and to selectively disable the regenerative braking function only when an antiskid braking event is detected at either of wheels 20.
摘要翻译： 一种与包括电动机/发电机组件14的电动车辆10一起使用的制动系统12和传统的电能存储装置16。 电机/发电机14选择性地驱动车辆12的车轮20。 制动系统12包括电动机控制模块26，其通信地联接到电动机/发电机14，并且其选择性地使电动机/发电机14在车辆10的车轮20处提供再生制动功能。 制动系统10还包括防滑制动系统，其选择性地在车辆10的车轮20和24处提供摩擦制动。 制动系统12有效地检测每个车轮20,24处的防滑制动事件，以选择性地在检测到防滑制动事件的车轮20,24中的每一个上提供防滑制动功能，并且选择性地禁用再生制动功能 只有当在车轮20中的任一个处检测到防滑制动事件时。
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10.发明授权Deceleration and compensation for low vacuum levels in a brake-by-wire braking system 有权减速和补偿在线控制动系统中的低真空水平公开(公告)号：US06443535B1
公开(公告)日：2002-09-03
申请号：US09686381
申请日：2000-10-11
IPC分类号： B60T844
CPC分类号： B60T17/221
摘要： A system or method for compensating for low vacuum levels in a brake-by-wire system includes continually monitoring the level of vacuum in a vacuum booster. The state or condition of the vacuum source is also monitored to determine whether it is on or off. When the vacuum source is off, the level of vacuum is measured to determine whether it is at or below a critical level. If the level of vacuum is critically low, the vacuum source is turned on. If the vacuum level is not critically low, the hydraulic boost gain is modified in order to provide more braking pressure in response to brake force exerted at the brake pedal.
摘要翻译： 用于补偿在线制动系统中的低真空水平的系统或方法包括连续监测真空助力器中的真空度。 还监测真空源的状态或状态，以确定其是开或关。 当真空源关闭时，测量真空度以确定其是否在临界水平以下。 如果真空度非常低，则真空源打开。 如果真空度不是非常低的话，液压助力增益被改变，以便响应于在制动踏板上施加的制动力而提供更多的制动压力。
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