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针对矿用自卸车在严寒地区矿山制动过程出力不够的情况，参照矿用自卸车整车设计标准，对三种不同制动工况下所需油压进行了计算分析，并确定第一种制动工况下所需油压为刹车加力器的最小设计油压。以－２０℃环境温度下制动气路所能提供的气压为设计气压，设计出刹车加力器的最小增压比，并在此基础上增加２０％，得出刹车加力器的设计增压比为２６．９８，比以前的增压比１７．２增加了５６．８６％，从而能保障矿用自卸车在中国北方严寒地区矿山执行正常制动。
Aiming at the situation that the mine dump truck is not enough in the process of mine braking in the cold area, the hydraulic pressure required under three different braking conditions is calculated and analyzed with reference to the design standard of the mine dump truck, and the first The required hydraulic pressure under braking conditions is the minimum design hydraulic pressure of the brake booster. With the air pressure at brake circuit of -20 ℃ ambient temperature as design pressure, the minimum supercharger ratio of brake booster was designed and increased by 20% The pressure ratio is 26.98, 56.86% more than the previous pressurization ratio of 17.2, which can ensure the mining truck to perform normal braking in the cold area of northern China.