| 摘要 |
The present invention is equipped with a supercharger (15) and a turbocharger (14), and a load sensor (S1) that detects the towing load W1 of a trailer (3) towed by a semi-trailer (1) is arranged in a coupler (5a). When the towing load W1 is greater than a predetermined towing determination value Wn, compound supercharging is performed with the supercharger (15) and the turbocharger (14), and when the towing load W1 is less than or equal to the towing determination value Wn, individual supercharging is performed using only the turbocharger (14). Therefore, supercharging which adapts to an increase/decrease in the load placed on a vehicle can be performed. |
