| 摘要 |
PURPOSE:To make it possible to run at a most suitable transmission position and suppress sudden acceleration to ensure economical running by judging whether or not the eigine rotation speed is in a proper range for the opening of an accelerator. CONSTITUTION:The opening of a lever 3 is determined according to stepping-in A of the accelerator and a voltage signal Va is generated. Further, an alternating current signal S1 from a rotation sensor 5 is made a voltage signal Vr by means of a rotation/voltage conversion circuit 6. The signals Va and Vr are made a difference signal Av by means of a differential amplifier 7, and the signal Av becomes zero when the engine rotation speed N is proper. The signal Av is compared (8 and 9) with V1 and Vu respectively, and the results of the comparisons are made sensor signal D1 through an OR circuit 10 and it is given with the signal D2 from an engine operation sensitive circuit 12, the signal D3 from engine idling sensitive switch 13 and the signal D4 from a clutch disengagement sensitive switch 15. When the output of the AND gate 11 becomes ''1'', an alarm circuit 16 is energized. |
