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21 条记录 (耗时 0.025 秒)

    Controlled engine shutdown for a hybrid electric vehicle
    1.
    发明授权
    Controlled engine shutdown for a hybrid electric vehicle 有权
    混合动力汽车的控制发动机停机

    公开(公告)号：US06763298B2

    公开(公告)日：2004-07-13

    申请号：US09682980

    申请日：2001-11-05

    申请人： David Lee Boggs ,  Jerry D. Robichaux ,  Mark William Peters ,  Stephen John Kotre

    发明人： David Lee Boggs ,  Jerry D. Robichaux ,  Mark William Peters ,  Stephen John Kotre

    IPC分类号： F02B7700

    CPC分类号： B60W20/15 ,  B60K6/445 ,  B60L2240/441 ,  B60W10/06 ,  B60W20/00 ,  B60W2510/0638 ,  B60W2710/0616 ,  B60W2710/0644 ,  F02D17/04 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/003 ,  F02D41/0055 ,  F02D41/042 ,  F02D41/123 ,  F02M25/08 ,  Y02T10/42 ,  Y02T10/47 ,  Y02T10/6239 ,  Y10T477/817

    摘要： A method and system to control engine shutdown for a hybrid electric vehicle (HEV) is provided. Tailpipe emissions are reduced during the many engine shutdowns and subsequent restarts during the course of an HEV drive cycle, and evaporative emissions are reduced during an HEV “soak” (inactive) period. The engine shutdown routine can ramp off fuel injectors, control engine torque (via electronic throttle control), control engine speed, stop spark delivery by disabling the ignition system, stop purge vapor flow by closing a vapor management valve (VMV), stop exhaust gas recirculation (EGR) flow by closing an EGR valve, and flush the intake manifold of residual fuel (vapor and puddles) into the combustion chamber to be combusted chamber to be combusted. The resulting exhaust gas byproducts are then converted in the catalytic converter.

    摘要翻译： 提供了一种控制混合动力汽车（HEV）发动机停机的方法和系统。 在HEV驱动周期过程中的许多发动机关闭和随后的重新启动期间，尾吹排放减少，HEV“浸泡”（非活动）期间蒸发排放减少。 发动机关闭程序可以减少燃料喷射器，控制发动机扭矩（通过电子节气门控制），控制发动机转速，通过禁用点火系统停止火花发射，通过关闭蒸汽管理阀（VMV）来停止吹扫蒸汽流，停止排气 通过关闭EGR阀来进行再循环（EGR）流动，并且将残留燃料（蒸气和水坑）的进气歧管冲入燃烧室以进行燃烧的燃烧室。 然后将所得废气副产物在催化转化器中转化。

    Method for controlling an internal combustion engine during engine shutdown to reduce evaporative emissions
    6.
    发明授权
    Method for controlling an internal combustion engine during engine shutdown to reduce evaporative emissions 失效
    在发动机关闭期间控制内燃机以减少蒸发排放的方法

    公开(公告)号：US06604502B1

    公开(公告)日：2003-08-12

    申请号：US09671713

    申请日：2000-09-27

    申请人： Darren Bisaro ,  David Lee Boggs ,  Mark William Peters ,  Stephen Richard Burke ,  Stephen John Kotre

    发明人： Darren Bisaro ,  David Lee Boggs ,  Mark William Peters ,  Stephen Richard Burke ,  Stephen John Kotre

    IPC分类号： F02B7700

    CPC分类号： F02D41/126 ,  F02D41/042 ,  F02D41/3809 ,  F02D2250/31

    摘要： A method of controlling an engine 12 during engine shutdown to reduce evaporative emissions is provided. The method includes a step 50 of shutting off a fuel pump 28 of the engine 12. The method also includes a step 52 of burning off the fuel from a fuel rail 24 in a cylinder 18 of the engine 12 after the fuel pump 28 is shut off. During the burning off of the fuel, a duty cycle of each fuel injector 22of engine 12 is controlled to allow the engine 12 to operate generally cyclically about a predetermined air/fuel ratio. The predetermined air/fuel ratio is preferably stoichiometric. By burning off the fuel in the fuel rail 24 after the fuel pump 28 is shut off, the fuel pressure in the fuel rail 24 is reduced. The reduced fuel pressure in the fuel rail 24results in reduced evaporative emissions from the engine 12.

    摘要翻译： 提供了一种在发动机关闭期间控制发动机12以减少蒸发排放的方法。 该方法包括关闭发动机12的燃料泵28的步骤50.该方法还包括在燃料泵28关闭之后从发动机12的气缸18中的燃料轨道24燃烧燃料的步骤52 关闭 在燃料燃烧期间，控制发动机12的每个燃料喷射器22的占空比，以允许发动机12大致周期性地运行大约预定的空气/燃料比。 预定的空气/燃料比优选为化学计量的。 在燃料泵28关闭之后，通过燃烧燃料轨道24中的燃料，燃料轨道24中的燃料压力降低。 燃料轨道24中的降低的燃料压力导致来自发动机12的蒸发排放减少。

    Electric coolant pump control strategy for hybrid electric vehicles
    7.
    发明授权
    Electric coolant pump control strategy for hybrid electric vehicles 有权
    混合动力汽车电动冷却液泵控制策略

    公开(公告)号：US06607142B1

    公开(公告)日：2003-08-19

    申请号：US09705169

    申请日：2000-11-02

    申请人： David Lee Boggs ,  Mark William Peters ,  Stephen John Kotre

    发明人： David Lee Boggs ,  Mark William Peters ,  Stephen John Kotre

    IPC分类号： B60H102

    CPC分类号： B60K6/22 ,  F01P7/164 ,  F01P7/165 ,  F01P2003/027 ,  F01P2003/028 ,  F01P2023/00 ,  F01P2023/08 ,  F01P2025/08 ,  F01P2025/32 ,  F01P2025/33 ,  F01P2050/24 ,  F01P2050/30 ,  F01P2060/08 ,  Y10S903/903 ,  Y10S903/904

    摘要： This invention relates to a hybrid electric vehicle component coolant control system and method. The coolant system has an electric pump to move coolant through a closed system including engine and motor components. Such components to be cooled can include any electric motors, power electronics, engine, and transmission. The preferred embodiment controls coolant flow to the vehicle engine and motor in a single closed loop. Vehicle components have temperature sensors that send temperature signals to an electric coolant pump duty cycle control strategy. The control strategy makes a determination of a duty cycle of the electric coolant pump as a function of the temperatures of vehicle components and orders the duty cycle of the electric pump. In the preferred configuration, engine temperature sensors can acquire either engine coolant temperature or engine cylinder head temperature. The preferred configuration includes a heater core in the coolant flow path connected between vehicle components and the electric coolant pump return, whereby passenger heating requests are facilitated. Several coolant flow paths among the vehicle components are possible including a parallel and series configuration. The control system can also use a rolling average filter routine connected between the temperature sensor for the motor and the control strategy to determine the average temperature of the motor.

    摘要翻译： 本发明涉及一种混合电动车辆部件冷却液控制系统及方法。 冷却剂系统具有电动泵，以通过包括发动机和电动机部件的封闭系统来移动冷却剂。 要冷却的这些部件可以包括任何电动机，电力电子设备，发动机和变速器。 优选实施例控制在单个闭合回路中到车辆发动机和电动机的冷却剂流。车辆部件具有将温度信号发送到电动冷却剂泵占空比控制策略的温度传感器。 控制策略确定电动冷却剂泵的占空比作为车辆部件温度的函数，并命令电动泵的占空比。在优选的结构中，发动机温度传感器可以获得发动机冷却液温度或发动机 气缸盖温度。 优选的配置包括连接在车辆部件和电动冷却剂泵返回之间的冷却剂流动路径中的加热器芯，由此促进乘客加热请求。 车辆部件中的几个冷却剂流动路径是可能的，包括平行和串联配置。 控制系统还可以使用连接在电机温度传感器和控制策略之间的滚动平均滤波程序来确定电机的平均温度。

    Method of operating a hybrid electric vehicle to reduce emissions
    9.
    发明授权
    Method of operating a hybrid electric vehicle to reduce emissions 有权
    操作混合电动车辆以减少排放的方法

    公开(公告)号：US06657315B1

    公开(公告)日：2003-12-02

    申请号：US09645950

    申请日：2000-08-25

    申请人： Mark William Peters ,  David Lee Boggs

    发明人： Mark William Peters ,  David Lee Boggs

    IPC分类号： B60L1114

    CPC分类号： B60W20/15 ,  B60K6/485 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W20/16 ,  B60W30/192 ,  F02D41/0255 ,  F02D2041/026 ,  Y02T10/26 ,  Y02T10/54 ,  Y02T10/6226 ,  Y02T10/6286

    摘要： A method of operating a hybrid electric vehicle 10 to reduce emissions. The method utilizes the vehicle's electric motor/generator 12 to generate a negative torque during cold-start conditions, effective to increase the load on the internal combustion engine 16, thereby reducing the light-off time of the catalytic converter 28. The method also reduces emissions by utilizing the vehicle's motor/generator 12 to provide a supplemental torque to engine 16 during transient events, thereby reducing the generated mass flow and amount of untreated emissions.

    摘要翻译： 一种操作混合电动车辆10以减少排放的方法。 该方法利用车辆的电动机/发电机12在冷启动条件下产生负转矩，有效地增加内燃机16上的负荷，从而降低催化转化器28的点火时间。该方法还减少 通过利用车辆的电动机/发电机12在瞬态事件期间向发动机16提供补充扭矩，从而减少所产生的质量流量和未经处理的排放量。