五十铃载重汽车的脚制动是采用液压传动辅助真空增压器结构。当踩下制动踏板感到绵软无力即是产生了气阻。产生气阻主要是受高温的影响。液压系统产生高温主要来自两个方面:一是使用条件的影响,如山区行车,发动机常在大负荷下工作,加之拖挂、上坡,车速低转速高,散热不良,而且总泵又接近排气管,导致总泵温度升高,产生气阻。二是制动 Isuzu truck’s foot brake is the use of hydraulic transmission auxiliary vacuum booster structure. When the brake pedal feel soft and weak, that is, the air resistance. Air resistance is mainly due to the impact of high temperature. Hydraulic system to produce high temperature mainly from two aspects: First, the use of conditions, such as driving in the mountains, the engine often work under heavy load, coupled with the trailer, uphill, low speed high speed, poor heat dissipation, Trachea, causing the master cylinder temperature, resulting in air resistance. Second, braking