| 摘要 |
<p>PURPOSE:To prevent damage of a generator and a control system by stopping the generator when a difference between an indicated value of a generator output current indicated by a CPU and a present value exceeds designated allowable range when a field magnetic current of the generator is controlled so as to generate power generation braking force. CONSTITUTION:A difference between a present vehicle speed input from an interface 46 and measured by a counter 48 and a set vehicle speed input from an interface 52 is subtracted by a subtracter 54 in a CPU 40. A proportional component an integrated component and a differential component of the speed difference are respectively operated by respective operational units 56, 58 and 60 and also the sum of these, an indicated dynamo current is operated by an operational unit 62. A field current is operated by an output processing unit 64 and it is outputted from an interface 66. An actual dynamo current entered from an interface 72 and measured by a measuring unit 74 and the indicated dynamo current are compared with each other and judged a comparing/judging unit 76 and if these differences are beyond the an allowable value range calculated by a calculator 84, a stop signal is outputted from a stop processing unit 78.</p> |
