公开(公告)号：US06508107B2

公开(公告)日：2003-01-21

申请号：US10047038

申请日：2002-01-14

申请人： Darwin R. Carrell ,  Larry E. Kendrick ,  Gregory J. Speckhart ,  Michael S. Lukich

发明人： Darwin R. Carrell ,  Larry E. Kendrick ,  Gregory J. Speckhart ,  Michael S. Lukich

IPC分类号： G01N1100

CPC分类号： F02D41/3809 ,  F02B3/06 ,  F02D2200/0602 ,  F02M57/025 ,  F02M59/105

摘要： The present invention provides a method and apparatus for determining the oil grade of an actuating fluid in a fuel system. The method includes the steps of determining an actuating fluid temperature, a pump speed, and a peak pressure or a timing event of the actuating fluid, and responsively determining the oil grade of the actuating fluid.

公开(公告)号：US06447423B1

公开(公告)日：2002-09-10

申请号：US09630336

申请日：2000-07-31

申请人： Howard N. Cannon ,  Larry E. Kendrick

发明人： Howard N. Cannon ,  Larry E. Kendrick

IPC分类号： B60K4112

CPC分类号： F16H61/462 ,  F16H47/04 ,  F16H59/40 ,  F16H59/42 ,  F16H59/46 ,  F16H61/431 ,  F16H2037/0886 ,  F16H2061/166 ,  Y10T477/6242

摘要： An apparatus for controlling a continuously variable transmission is disclosed. The apparatus includes (i) an input shaft driven by an engine, (ii) an output shaft, (iii) an operator input for generating speed commands, and (iv) a controller operable to receive said speed commands and generate transmission ratio commands which control a ratio of a speed of the output shaft to a speed of the input shaft. An upper transmission ratio limit is defined by first engine speed and a lower transmission ratio limit is defined by a second engine speed. When the speed command requires a transmission ratio command greater than the upper transmission ratio limit, the controller adjusts the transmission ratio command to the upper transmission ratio limit, whereas when the speed command requires a transmission ratio command less than the lower transmission ratio limit the controller adjusts the transmission ratio command to the lower transmission ratio limit. A method for controlling a continuously variable transmission is also disclosed.

摘要翻译： 公开了一种用于控制无级变速器的装置。 该设备包括（i）由发动机驱动的输入轴，（ii）输出轴，（iii）用于产生速度指令的操作者输入，以及（iv）可操作以接收所述速度命令并产生传动比命令的控制器， 控制输出轴的速度与输入轴的速度的比率。 上传动比限制由第一发动机转速确定，较低变速比限制由第二发动机转速定义。 当速度命令需要大于上传动比限制的传动比指令时，控制器将传动比命令调整到上传动比限制，而当速度指令需要小于传动比下限的传动比指令时，控制器 将传动比指令调整到较低传动比限制。 还公开了一种用于控制无级变速器的方法。