发明名称 |
Multiple chopper speed control system for compound motor |
摘要 |
A compound-motor speed control system for a battery-powered vehicle (86) wherein the series winding (14) and the shunt winding (16) of the motor (12) are magnetically linked in energy transfer relation. A first current switch (18) is connected in series with the series winding (14) and the armature (15) and a second current switch (20) is connected in series with the shunt winding (16). A digitally-implemented speed control system (24) responds to the speed selection settings of an analog device (64) to operate the first switch intermittently while holding the second switch closed over a lower speed range, and to operate the second switch intermittently while holding the first switch closed over a higher speed range.
|
申请公布号 |
US4751439(A) |
申请公布日期 |
1988.06.14 |
申请号 |
US19830495284 |
申请日期 |
1983.05.16 |
申请人 |
CATERPILLAR INDUSTRIAL INC. |
发明人 |
BUCHWALD, FRANK S.;PICKERING, WILLIAM |
分类号 |
H02P7/298;(IPC1-7):H02P5/04 |
主分类号 |
H02P7/298 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|