公开(公告)号：WO1987000992A1

公开(公告)日：1987-02-12

申请号：PCT/GB1986000456

申请日：1986-07-31

Applicant: THE GENERAL ELECTRIC COMPANY, P.L.C. ,  FINNEY, David

Inventor： THE GENERAL ELECTRIC COMPANY, P.L.C.

IPC: H02P05/408

CPC classification number: H02P27/06 ,  H02M5/4505 ,  H02P2201/03 ,  H02P2209/01

Abstract: A self-excited induction motor variable speed drive using a known self-excitation method in which a capacitor is connected in parallel with the motor. Power is supplied by a supply convertor, a D.C. link and a motor convertor, the latter running at the motor frequency. The motor convertor includes a current bypass switching circuit comprising a capacitor bank connected to the motor terminals and to a neutral point between a pair of thyristors connected across the D.C. link.

Abstract translation: 使用已知的自激方法的自激感应电动机变速驱动器，其中电容器与电动机并联连接。 电源由电源转换器，直流链路和电机转换器供电，后者以电机频率运行。 电动机转换器包括电流旁路开关电路，该电流旁路开关电路包括连接到电动机端子的电容器组和跨过直流连接器连接的一对晶闸管之间的中性点。

公开(公告)号：WO1986004430A1

公开(公告)日：1986-07-31

申请号：PCT/GB1986000021

申请日：1986-01-13

Applicant: THE GENERAL ELECTRIC COMPANY, P.L.C.

Inventor： THE GENERAL ELECTRIC COMPANY, P.L.C. ,  REEVE, Peter, Joseph

IPC: G05D01/02

CPC classification number: G05D1/0272 ,  G01C21/12 ,  G05D1/024

Abstract: An automated vehicle (2) includes a navigation system (Fig. 2) which carries out a dead reckoning calculation of the vehicle's position based on inputs from sensors on the motion of a steering wheel (6) in the preceding time interval, DELTAt. Parameters of the system including the heading angle, the spatial position x, y, the angular drift in the steering angle alpha, a crabbing angle beta and a variation ldm in steering wheel radius are updated by the addition of the product of a Kalman gain calculated by computer (70) and an error signal produced each time an observation is made by laser bearing finding equipment on the vehicle (2).

公开(公告)号：WO1985005474A1

公开(公告)日：1985-12-05

申请号：PCT/GB1984000352

申请日：1984-10-19

Applicant: THE GENERAL ELECTRIC COMPANY, P.L.C.

Inventor： THE GENERAL ELECTRIC COMPANY, P.L.C. ,  REEVE, Peter, Joseph ,  ROBINS, Michael, Philip ,  ROBERTS, Malcolm, Thomas

IPC: G05D01/02

CPC classification number: G05D1/0236 ,  G05D1/0282 ,  G05D2201/0216

Abstract: A vehicle control and guidance system in which a desired route for the vehicle is stored in the vehicle in the form of co-ordinates in a ground reference frame. The "vectors" between these junction points are divided by successive reference points into incremental vectors, the reference points being generated ahead of the vehicle at regular intervals. A dead reckoning system predicts the position of the vehicle at the end of each interval and this estimate is corrected, using a Kalman filter, by an independant fixed-target detection system using a scanning laser. The error between the estimated vehicle position and the local incremental vector provides a steering angle correction for the vehicle and the vehicle speed is dependent upon the lag of the vehicle behind the generation of reference points.