发明名称 |
BY WIRE CONTROL OF BRAKING AND ACCELERATION |
摘要 |
A rider surface maintenance vehicle with variable dynamic braking, in contrast to a mechanically-engaged braking system that uses a brake cable. A brake pedal engages a sensor that encodes the pedal position as an electronic signal. The electronic signal, along with the vehicle velocity, determines a machine deceleration rate, or braking rate, either by calculation, lookup table, or a combination of the two. The braking rate may be tuned so that the of the brake mimics or approximates the feel of a conventional mechanically-engaged brake that uses a brake cable. During stopping, once the vehicle passes below a threshold velocity, a parking brake is automatically engaged. The braking rate is converted to a duty cycle, and the braking is preferably accomplished by pulse width modulation (PWM) of an electrical load applied in parallel to the motor. |
申请公布号 |
WO2005086758(A2) |
申请公布日期 |
2005.09.22 |
申请号 |
WO2005US07325 |
申请日期 |
2005.03.07 |
申请人 |
TENNANT;LORING, PETER ALEXANDER;FEENY, STEVEN VINCENT;ERKO, ROBERT J.;GROSCHEN, PAUL;MILUN, RICHARD |
发明人 |
LORING, PETER ALEXANDER;FEENY, STEVEN VINCENT;ERKO, ROBERT J.;GROSCHEN, PAUL;MILUN, RICHARD |
分类号 |
B60T13/74 |
主分类号 |
B60T13/74 |
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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