| 摘要 |
PURPOSE:To improve the control characteristic at low speed revolution by outputting the revolution-angle pulses according to the contents of memory and selectively feeding said output according to the contents of memory, thus securing the matching with the processing speed of a microcomputer. CONSTITUTION:The data for low speed revolution is stored into a RAM 12 with the number of revolution lower than a set number of revolution, and the number of pulses outputted from the RAM 12 is increased according to the data. With the number of revolution higher than the set number of revolution, the contents of the RAM 12 is rewritten into the data at the high speed revolu tion, and the outputted number of pulses is reduced. Therefore, the control performance in low speed revolution can be improved, securing the matching with the processing speed of a CPU 16, and the need of producing a various sorts of pulses corresponding to the number of cylinders is avoided.
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