Objective To solve the discharging capacity decrease on the battery of medium duty vehicle & heavy duty ve-hicle in plateau and severe cold area.Methods The vehicle lead acid battery was heated with a fuel-fired air heater and insulated with a special warm-box. The internal temperature of the battery was kept in the normal range to guarantee the discharge capac-ity of the battery at low temperature.Results The temperature of electrolyte in lead acid battery could be raised to normal tem-perature with heater and warm-box. The discharge capacity could be improved by about 65% at-25℃ and 110% at-41℃. Conclusion In low temperature environment, the battery heater and warm-box can effectively improve the charge and discharge capacity of battery and supply enough electricity for engine starting and the auxiliary devices, which can provide effective pro-tection for the engine's starting and running in plateau and cold area..%目的 解决中重型车辆装备在高原高寒环境下蓄电池充放电性能降低,起动电量供应不足的问题.方法 采用燃油空气加热器对车用铅酸蓄电池进行加热,同时运用专用保温箱进行保温,保持蓄电池内部温度在正常工作范围,确保其在低温环境下的充放电性能.结果 使用蓄电池加热和保温装置,可将蓄电池电解液温度升至常温.在-25℃环境条件下,可以提高蓄电池放电量65%左右;在-41℃环境条件下,可以提高蓄电池放电量110%左右.结论 蓄电池加热和保温装置可以有效提高其低温环境下充放电性能,使车用蓄电池在低温环境中可以有效提供发动机起动及各种起动辅助装置用电,为高原高寒地域中重型车辆的起动与运行提供有效保障.
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