| 摘要 |
PROBLEM TO BE SOLVED: To improve durability by reducing the load applied to a transmission belt 80, while ensuring the original function of the electrical apparatus of vehicle, in an accessory drive unit (belt transmission mechanism 8) of an engine 1 where a plurality of accessories, including an alternator 6, are driven by means of the transmission belt 80.SOLUTION: An accessory drive unit of an engine 1 includes battery voltage detection means (e.g., battery sensor 103) for detecting the voltage Vof an on-vehicle battery 9, belt load determination means (ST02, ST03) for determining whether or not the load of a transmission belt 80 is higher than a predetermined value, and power generation control means (ST05) for controlling electric power generation of the alternator 6, so that when the battery voltage V(detection value) goes above a predetermined threshold at the time of affirmative determination (ST04), the power generation voltage is between the detection value and a lower limit voltage value Vcapable of ensuring the operation of the electrical apparatus of vehicle (ST05).SELECTED DRAWING: Figure 4 |
