公开(公告)号：US20040250795A1

公开(公告)日：2004-12-16

申请号：US10778377

申请日：2004-02-13

Applicant: Visteon Global Technologies, Inc.

Inventor： Kathleen Stroia ,  Stephen Kempfer ,  DeQuan Yu ,  Ross D. Pursifull

IPC: F02M001/00

CPC classification number: F02M37/0047 ,  F02D33/006 ,  F02D41/3836 ,  F02D2250/02 ,  F02M37/0082 ,  F02M37/10 ,  F02M55/00 ,  F02M63/0225 ,  F02M2200/60

Abstract: A fuel volume accumulator is provided to hold rail pressure for hot engine restart and then reduce fuel pressure when the engine is off thereby minimizing evaporative emissions during diurnal cycles by preventing pressure build up as a temperature of a fuel system rises. The fuel volume accumulator comprises a fuel inlet body, and a moving element adapted to communicate with an inner surface of the fuel inlet body to define a fuel chamber. The fuel chamber is adapted to expand with substantially minimal pressure resistance until the extent of its volume is encountered. The fuel inlet body is in open communication at a first end with a fuel pump via a check valve and a fuel rail via an orifice which restricts fuel flow to substantially maintain a quick fuel rail re-pressurization.

Abstract translation: 提供燃料量蓄能器以保持用于热发动机重启的轨道压力，然后当发动机关闭时降低燃料压力，从而通过在燃料系统的温度升高时防止压力增加，从而最小化昼间循环期间的蒸发排放。 燃料体积蓄能器包括燃料入口体和适于与燃料入口体的内表面连通以限定燃料室的移动元件。 燃料室适于以基本上最小的耐压力膨胀，直到遇到其体积的程度。 燃料入口体在第一端处经由止回阀和燃料轨经由孔口与燃料泵开口连通，所述孔口限制燃料流量以基本上保持快速燃料轨道再加压。

公开(公告)号：US20040206338A1

公开(公告)日：2004-10-21

申请号：US10655863

申请日：2003-09-05

Applicant: Visteon Global Technologies, Inc.

Inventor： Ross D. Pursifull ,  David R. Gimby

IPC: F02M001/00

CPC classification number: F02M37/0029 ,  F02M55/002 ,  F02M69/462 ,  F02M69/54

Abstract: A fuel pressure relief valve is provided to minimize evaporative emissions due to fuel leakage through the fuel injectors. The fuel pressure relief valve is sealed during operation to prevent flow through the valve. When the automotive vehicle is not operating and the temperature has cooled, the valve unseals. Thereafter, temperature rises that would otherwise result in pressure buildup are prevented.

Abstract translation: 提供了一种燃料压力释放阀，用于使由燃料通过燃料喷射器泄漏的蒸发排放最小化。 燃油压力释放阀在操作过程中被密封，以防止流过阀门。 当汽车不工作且温度已经冷却时，阀门开启。 此后，否则会导致压力累积的温度升高被阻止。

公开(公告)号：US20040059496A1

公开(公告)日：2004-03-25

申请号：US10247029

申请日：2002-09-19

Applicant: Visteon Global Technologies, Inc.

Inventor： Ross D. Pursifull ,  Edward A. Bos

IPC: G06G007/70

CPC classification number: F02D11/107

Abstract: An engine diagnostic system is described in which a number of engine diagnostics for an electronic throttle are performed while the throttle itself is off line. Of particular interest are positional, electrical, and timing tests of performance for the electronic throttle. A number of self-diagnostic routines may be performed when the engine is off-line and the testing will not interfere with an operator of the engine or a motor vehicle containing the engine.

Abstract translation: 描述了一种发动机诊断系统，其中在节流阀本身离线时执行用于电子节气门的多个发动机诊断。 特别感兴趣的是用于电子油门的性能的位置，电气和时序测试。 当发动机离线并且测试不会干扰发动机的操作者或包含发动机的机动车辆时，可以执行许多自诊断程序。

公开(公告)号：US20030125820A1

公开(公告)日：2003-07-03

申请号：US10040678

申请日：2001-12-28

Applicant: Visteon Global Technologies, Inc.

Inventor： Ross D. Pursifull

IPC: G05B013/02

CPC classification number: F02D41/249 ,  F02D11/105 ,  F02D41/1402 ,  F02D2011/102

Abstract: A control system must establish the same throttle position repeatedly to obtain fuel efficiency and prevent speed dropping during idling. Sensors determine the throttle position or other engine parameter associated with the throttle position and create an analog signal. The information is processed by a analog-to-digital converter which places the signal into a discrete level. A controller receives this signal and compares it to a point assigned between two discrete levels representing the desired throttle position or engine parameter. Therefore, the signal will never equal the assigned point. The controller makes corrections based on this comparison after every iteration because the error will never reach zero.

Abstract translation: 控制系统必须重复建立相同的节气门位置，以获得燃油效率并防止空转时的速度下降。 传感器确定与节气门位置相关联的节气门位置或其他发动机参数，并产生模拟信号。 该信息由将信号置于离散电平的模拟 - 数字转换器处理。 控制器接收该信号并将其与分配在表示期望的节气门位置或发动机参数的两个离散水平之间的点进行比较。 因此，信号永远不会等于分配点。 在每次迭代后，控制器将根据此比较进行更正，因为错误永远不会达到零。