发明名称 |
D.C. treadmill speed change motor controller system |
摘要 |
A control system controls a D.C. speed-change motor to change the transmission configurations on a treadmill transmission powered by an A.C. drive motor. The control system may be either microprocessor based or a system of discrete logical pieces. The control system responds to both the current speed of the treadmill belt and the electrical current drawn by the speed-change motor. The control system uses this information to modulate the duty cycle of voltage pulses sent to the D.C. speed-change motor to power the speed-change motor in response to a determination by the control system that the speed-change motor needs to rotate faster or slower to produce a constant rate of speed change for the treadmill belt. The control system also includes a rapid deceleration system. In response to the user's direction or in response to the condition of the treadmill, the control system sends a high voltage to the D.C. speed change motor to cause it to rapidly change the configuration of the transmission to decelerate the belt.
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申请公布号 |
US5290205(A) |
申请公布日期 |
1994.03.01 |
申请号 |
US19910790750 |
申请日期 |
1991.11.08 |
申请人 |
QUINTON INSTRUMENT COMPANY |
发明人 |
DENSMORE, BRUCE D.;HASS, LESTER A.;ROTUNDA, JOHN T.;FISSEL, GREGORY W. |
分类号 |
A63B22/02;(IPC1-7):A63B22/02;A63B24/00 |
主分类号 |
A63B22/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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