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    • 1. 发明申请
    • METHOD TO REDUCE SAMPLE SIZE IN ACCELERATED RELIABILITY VERIFICATION TESTS
    • 在加速可靠性验证测试中减少样品尺寸的方法
    • WO9814874A3
    • 1998-06-18
    • PCT/GB9702692
    • 1997-09-30
    • FORD MOTOR COFORD MOTOR CO
    • HU JUN MING
    • G01M13/00G06F11/00G06F11/263G06F19/00G06Q10/04
    • G06Q10/04G06F11/008G06F11/263
    • A method for determining a sample size W required for accelerated testing of a product includes the steps of selecting a Reliability Goal R as appropriate for the product, selecting a Confidence Level CL appropriate for the accuracy required from the results of the accelerated testing, selecting the number of testing cycles Nt defining the accelerated testing period, calculating the Sample Size W for the accelerated testing as W = Log (1 - CL)/Log(R(N)) and then testing the W product samples for the Nt testing cycles to validate the required Reliability when no test failures are observed over the Nt testing cycles. A method for determining the Number of Cycles Nt required for accelerated testing of a product having a service lifetime is also described. In either of the above methods, if any failures are observed in the Nt testing cycles/time, then the number of testing cycles/time may be extended to at least 2 Nt and a new Confidence Level is calculated as in formula (I). The Reliability R for the product design is validated if the new Confidence Levels CLNEW is greater than a CLmin value specified as a minimum confidence level required for the accelerated testing control. 00000
    • 用于确定产品加速测试所需的样本大小W的方法包括以下步骤:选择适合于产品的可靠性目标R,从加速测试的结果中选择适合于所需精度的置信水平CL,选择 测试周期数Nt定义加速测试周期,计算用于加速测试的样本大小W为W = Log(1-CL)/ Log(R(N)),然后测试用于Nt测试周期的W乘积样本 在Nt测试周期内没有观察到测试失败时,验证所需的可靠性。 还描述了用于确定具有使用寿命的产品的加速测试所需的循环数Nt的方法。 在上述任一方法中,如果在Nt测试周期/时间内观察到任何故障,则测试周期/时间的数量可以扩展至至少2 Nt,并且如公式(I)中计算新的置信度。 如果新的置信度CLNEW大于作为加速测试控制所需的最小置信度指定的CLmin值,则验证产品设计的可靠性R. 00000
    • 5. 发明申请
    • CAMSHAFT REVOLUTION SENSING ASSEMBLY
    • CAMSHAFT革命传感总成
    • WO9729378A8
    • 1999-10-28
    • PCT/GB9603035
    • 1996-12-11
    • FORD MOTOR COFORD MOTOR COFORD MOTOR CANADAMOTOROLA INC
    • RAMSEYER MARK SBETTELHEIM RUDOLF
    • G01B21/22G01D5/244G01D5/245G01P3/489
    • G01P3/489
    • A camshaft revolution sensing assembly for identifying a revolution of a camshaft, having a plurality of teeth, of an internal combustion engine of an automotive vehicle includes a camshaft sensor (12) for sensing revolutions of a camshaft by sensing each of the teeth as they rotate therepast and producing a camshaft sensor output, a subtracting device (14) operatively connected to the camshaft sensor (12), the subtracting device (14) subtracting each time the camshaft sensor (12) senses one of the teeth rotating therepast, and a signal generator (18) operatively connected to the subtracting device (14) wherein the signal generator (18) generates a signal indicating the subtracting device has subtracted to a predetermined value.
    • 用于识别机动车辆的内燃机的具有多个齿的凸轮轴的旋转的凸轮轴转速检测组件包括凸轮轴传感器(12),用于通过在旋转时感测每个齿来感测凸轮轴的转数 并且产生凸轮轴传感器输出,与凸轮轴传感器(12)可操作地连接的减法装置(14),每当凸轮轴传感器(12)感测到其中旋转的齿中的一个齿轮时,减法装置(14)减去一个信号 发生器(18),其可操作地连接到所述减法装置(14),其中所述信号发生器(18)产生指示所述减法装置已被减去预定值的信号。
    • 7. 发明申请
    • APPARATUS FOR ROUTING ELECTRICAL SIGNALS IN AN ENGINE
    • 用于在发动机中路由电气信号的装置
    • WO9934112A3
    • 1999-10-14
    • PCT/GB9803773
    • 1998-12-16
    • FORD MOTOR COFORD MOTOR CO
    • GLOVATSKY ANDREW ZLEMECHA MYRONMILLER MARKBAKER JAY DEAVIS
    • B60R16/02F02M51/00H04L29/08H04M3/22H04Q3/00H05K1/11F02D41/02F02D41/20F02D43/00F02D45/00F02M55/02
    • H04Q3/0058B60R16/0207F02M51/005H04L67/12H04L67/125H04L69/329H04M3/2263H04M2207/12H05K1/118Y10S707/99945Y10S707/99948
    • A flex circuit for routing electrical signals in an internal combustion engine having n cylinders and an intake manifold, comprising: a flex circuit substrate (102) having a body portion (104) and at least n arm portions (106) extending outward from said body portion (104), wherein said body portion generally conforms in shape with a top surface of the intake manifold (50), and wherein each arm portion (106) is arranged in general proximity with a respective cylinder; a plurality of conductive circuit traces (108) arranged on or within at least one surface of said body portion (104) and of each arm portion (106); and at least one input/output connector (110) for connection to at least one of an external signal source (70), an external power source (70), an external signal destination (70), and an external power destination (70), wherein each input/output connector (110) is attached to said substrate (102) and is electrically connected to at least one of said circuit traces (108); wherein each circuit trace (108) carried by each arm portion (104) terminates in a termination (108t) electrically connectable with an electrical engine element (90).
    • 一种用于在具有n个气缸和进气歧管的内燃机中布置电信号的柔性电路,包括:具有主体部分(104)和至少从所述主体向外延伸的n个臂部分(106)的柔性电路基板(102) 部分(104),其中所述主体部分的大致形状与所述进气歧管(50)的顶表面一致,并且其中每个臂部分(106)总体上布置在相应的气缸附近; 布置在所述主体部分(104)和每个臂部分(106)的至少一个表面上或其内部的多个导电电路迹线(108); 以及用于连接至外部信号源(70),外部电源(70),外部信号目的地(70)和外部电力目的地(70)中的至少一个的至少一个输入/输出连接器(110) ,其中每个输入/输出连接器(110)附接到所述基板(102)并且电连接到所述电路迹线(108)中的至少一个。 其中由每个臂部分(104)承载的每个电路迹线(108)终止于可与电动发动机元件(90)电连接的终端(108t)。
    • 9. 发明申请
    • INTERNAL COMBUSTION ENGINE AND CAM DRIVE MECHANISM THEREFOR
    • 内燃机及其驱动机构
    • WO1982003658A1
    • 1982-10-28
    • PCT/US1982000442
    • 1982-04-09
    • FORD MOTOR CO CANADA LTDFORD WERKE AGFORD FRANCE SAFORD MOTOR COMA THOMAS TSIO HEI
    • FORD MOTOR CO CANADA LTDFORD WERKE AGFORD FRANCE SAFORD MOTOR CO
    • F01L01/34
    • F01L1/348F01L1/024F01L1/352F01L1/356F02B2075/027
    • An internal combustion engine has n number of cylinders, a piston in each cylinder connected to a crankshaft (2), each piston being in phase or out of phase with the others by A or a multiple thereof (A = 720/n), cams for actuating inlet and exhaust valves to each cylinder, and a cam drive mechanism (5) which rotates the cams in phased relationship with the crankshaft (2) to open the valves in sequence for a desired angle of rotation of the crankshaft. The cam drive mechanism also includes means for combining the rotational movement of the cams with a phased oscillatory movement of the camshaft (3) and cams of variable amplitude about the axis of rotation at a frequency f times the crankshaft frequency so that over the period which the valves are opened and/or their timings variable, f has the following values: f = 2n when the number of cylinders n = 1; f = n or n/2 when n = 2; and f = n/2 when n = 3 or more. The selection of the frequency of the oscillations allows all the cams to be mounted on the same camshaft.
    • 内燃机具有n个气缸,每个气缸中的活塞连接到曲轴(2),每个活塞与其它活塞同相或异相(A = 720 / n ),用于向每个气缸致动入口和排气阀的凸轮;以及凸轮驱动机构(5),其使与所述曲轴(2)定相关系的所述凸轮旋转,以依次打开所述阀,以使所述曲轴的期望的旋转角度。 凸轮驱动机构还包括用于将凸轮的旋转运动与凸轮轴(3)的相位振荡运动和围绕旋转轴线的可变振幅的凸轮以相对于曲轴频率f的频率组合的装置,使得在 阀被打开和/或其定时可变,f具有以下值:当缸数n = 1时,f = 2n; 当n = 2时,f = n或n / 2; 当n = 3以上时,f = n / 2。 振荡频率的选择允许所有的凸轮安装在相同的凸轮轴上。
    • 10. 发明申请
    • NAVIGATION SYSTEM FOR A VEHICLE
    • 车辆导航系统
    • WO2007061409A3
    • 2007-10-25
    • PCT/US2005042343
    • 2005-11-21
    • FORD MOTOR COPROIETTY JOHNKUANG MING
    • PROIETTY JOHNKUANG MING
    • G01C21/34G08G1/123
    • G01C21/3469
    • A navigation system and method provides travel routes for a vehicle The method includes receiving an origin (64) a destination (66) for the vehicle The method also includes determining a shortest distance route (70), a fastest time route (68), an optimal fuel efficient route, and a fuel economy of each route The method also includes comparing the fuel economy of the shortest distance route, the fastest time route, and the optimal fuel efficient route (82) Additionally, the method includes outputting the fuel economy savings of the shortest distance route, the fastest time route, and the optimal fuel efficient route to a navigation system display (84).
    • 导航系统和方法提供车辆的行驶路线该方法包括接收车辆的起点(64)目的地(66)。该方法还包括确定最短距离路线(70),最快时间路线(68), 最佳燃油效率路线和每条路线的燃油经济性该方法还包括比较最短距离路线的燃油经济性,最快时间路线和最佳燃油效率路线(82)。另外,该方法包括输出燃料经济性节省 的最短距离路线,最快的时间路线和到导航系统显示器的最佳燃料效率路线(84)。