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86 条记录 (耗时 0.039 秒)

    Method of controlling engine torque during launch from neutral idle operation
    74.
    发明授权
    Method of controlling engine torque during launch from neutral idle operation 有权
    从空载怠速运转中控制发动机扭矩的方法

    公开(公告)号：US06440041B1

    公开(公告)日：2002-08-27

    申请号：US09779816

    申请日：2001-02-08

    申请人： Bradley Dean Riedle ,  Jeffrey Allen Doering ,  Ronald Thomas Cowan

    发明人： Bradley Dean Riedle ,  Jeffrey Allen Doering ,  Ronald Thomas Cowan

    IPC分类号： B60K4104

    CPC分类号： F02D41/10 ,  B60W10/04 ,  B60W10/06 ,  B60W10/11 ,  B60W10/115 ,  B60W30/1819 ,  B60W30/186 ,  B60W2710/0666 ,  F02D2200/1012 ,  F02D2250/18 ,  F02D2250/21 ,  F02D2250/26 ,  F16H61/686 ,  F16H63/50 ,  F16H2200/0047 ,  Y10T477/675

    摘要： A method of controlling engine torque in a motor vehicle having an internal combustion engine and multi-ratio transmission when launched from a neutral idle rest condition. At neutral idle, the transmission is controlled such that the input and output members are decoupled. During vehicle launch, two different strategies may be employed to control engine torque. One preferred method is to determine an engine brake torque limit as a function of time. Another preferred method to determine the engine brake torque limit is to estimate the torque capacity of the forward clutch at any given time using a mathematical model and a calibrated offset of turbine torque. Irrespective of the particular method used, the determined engine brake torque limit is compared to the corresponding engine torque amount that is requested by the vehicle operator. As a result, the actual engine torque output is optimized at all times to provide approximately the maximum amount of requested torque without exceeding the capacity of the transmission's forward clutch.

    摘要翻译： 一种当从中立空转静止状态发射时，具有内燃机和多比率变速器的机动车辆中的发动机转矩的控制方法。 在中性空闲时，传输被控制使得输入和输出构件被解耦。 在车辆发射期间，可以采用两种不同的策略来控制发动机转矩。 一种优选的方法是确定作为时间的函数的发动机制动转矩极限。 确定发动机制动转矩极限的另一个优选方法是使用数学模型和涡轮扭矩的校准偏移来估计在任何给定时间的前进离合器的扭矩容量。 不考虑使用的特定方法，将确定的发动机制动转矩极限与车辆操作者要求的对应的发动机转矩量进行比较。 因此，实际的发动机扭矩输出始终被优化，以提供大约最大量的要求扭矩，而不超过变速器前进离合器的容量。

    Method and system for controlling fuel delivery during engine cranking
    76.
    发明授权
    Method and system for controlling fuel delivery during engine cranking 失效
    用于控制发动机起动期间燃油输送的方法和系统

    公开(公告)号：US5735249A

    公开(公告)日：1998-04-07

    申请号：US887127

    申请日：1997-07-02

    申请人： Alastair William Parke ,  Jeffrey Allen Doering ,  Jon Dixon ,  Michael J. Cullen ,  Paul Charles Mingo ,  Robert Matthew Marzonie

    发明人： Alastair William Parke ,  Jeffrey Allen Doering ,  Jon Dixon ,  Michael J. Cullen ,  Paul Charles Mingo ,  Robert Matthew Marzonie

    IPC分类号： F02D41/04 ,  F02D41/18 ,  F02D41/06

    CPC分类号： F02D41/18 ,  F02D41/047

    摘要： A method and system for controlling fuel delivery to an individual cylinder of an internal combustion engine during engine cranking compensates for fuel transport dynamics and the actual fuel injected into the cylinder. A plurality of engine parameters are sensed, including engine temperature, inducted air mass per cylinder and number of engine intake events since cranking. A temperature of the engine stored at key-off is determined. A new puddle mass estimate for the cylinder is determined based on the decay ratio of the new puddle mass estimate to the prior puddle mass estimate stored before key-off utilizing the temperature of the engine stored at key-off. A desired fuel mass to be injected into the cylinder is then determined based on the new puddle mass estimate and the plurality of engine parameters.

    摘要翻译： 用于在发动机起动期间控制向内燃机的单个气缸的燃料输送的方法和系统补偿燃料输送动力学和喷射到气缸中的实际燃料。 感测多个发动机参数，包括发动机温度，每缸的导入空气质量以及自启动以来的发动机进气事件数。 确定在钥匙存储的发动机的温度。 基于新的水坑质量估计值与使用存储在关键点的发动机的温度关闭之前存储的先前熔池质量估计值的衰减比率来确定气缸的新的水坑质量估计。 然后基于新的水坑质量估计和多个发动机参数来确定要喷射到气缸中的期望燃料质量。