公开(公告)号：US07898203B2

公开(公告)日：2011-03-01

申请号：US12172139

申请日：2008-07-11

申请人： Marc R. Davis ,  Andrew J. Shepherd ,  Stephen Post

发明人： Marc R. Davis ,  Andrew J. Shepherd ,  Stephen Post

IPC分类号： G01R31/34

CPC分类号： G01R31/343 ,  H02P23/14

摘要： Electric motor controllers that dynamically adjust a motor resistance parameter are described. In order to adjust the motor resistance parameter, power is applied the electric motor while the controlled vehicle is stopped and its brake is set so that the vehicle remains stopped while a measurement is taken that can be used to determine motor resistance. A new motor resistance value is then generated based at least in part upon the measurement(s) and the motor resistance parameter is set to the new motor resistance value. The new motor resistance parameter may then be used in the control of the electric motor. In some embodiments, the measurements are taken after the controller receives a brake release request but before actually releasing the brake. The described arrangement can be used in a wide variety of motor controllers and is especially well suited for use in low cost controllers that control motors that are susceptible to wide variations in their resistance such as brushed permanent magnet DC motors.

摘要翻译： 描述动态调整电动机电阻参数的电动机控制器。 为了调整电动机电阻参数，在控制车停止时对电动机施加动力，并且设定制动器，使得车辆在进行可用于确定电动机电阻的测量时保持停止。 然后至少部分地基于测量产生新的电动机电阻值，并且将电动机电阻参数设置为新的电动机电阻值。 然后可以将新的电动机电阻参数用于电动机的控制。 在一些实施例中，在控制器接收到制动器释放请求之后但在实际释放制动器之前进行测量。 所描述的布置可以用在各种各样的电动机控制器中，并且特别适用于控制电动机的低成本控制器，这些电动机易受其电阻的宽度变化的影响，例如刷式永磁直流电动机。

公开(公告)号：US06622069B1

公开(公告)日：2003-09-16

申请号：US10150292

申请日：2002-05-07

申请人： Marc R. Davis ,  Andrew J. Shepherd ,  Michael Bachman

发明人： Marc R. Davis ,  Andrew J. Shepherd ,  Michael Bachman

IPC分类号： B60L1100

CPC分类号： B60L15/2036 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7275

摘要： Methods and apparatus for adjusting at least one of the motors in an electrically driven vehicle having a first motor for controlling a first wheel and a second motor for controlling a second wheel are disclosed. The method is performed in response to input from a user control that enables an operator of the vehicle to steer the vehicle. It is determined from one or more conditions whether the operator of the vehicle is attempting to drive the vehicle straight on approximately level ground. When it is determined from the one or more conditions that the operator of the vehicle is attempting to drive the vehicle approximately straight on approximately level ground, it is then determined whether to adjust one of the motors based upon the input from the operator of the vehicle to the user control. When it is determined that adjustment is appropriate, the appropriate motor is adjusted.

摘要翻译： 公开了一种用于调节具有用于控制第一车轮的第一电动机和用于控制第二车轮的第二电动机的电动车辆中的至少一个电动机的方法和装置。 该方法是响应于使得车辆的操作者能够引导车辆的用户控制的输入来执行的。 从一个或多个条件确定车辆的操作者是否试图在大致平坦的地面上直线地驾驶车辆。 当从一个或多个条件确定车辆的操作者试图在大致水平的地面上大致直线地驱动车辆时，然后基于来自车辆的操作者的输入来确定是否调整其中一个电动机 到用户控制。 当确定调整是合适的时候，调整适当的电机。