A preheating control method and device of a methanol range extender, an electronic device and a vehicle
By dynamically matching the preheating control of the PTC heater and the methanol water boiler in the methanol range extender, the problem of low-temperature start-up of methanol fuel is solved, achieving efficient energy utilization and reliable engine start-up, and improving the low-temperature start-up performance and overall vehicle energy efficiency of range-extended electric vehicles.
CN122407429APending Publication Date: 2026-07-17WEICHAI POWER CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WEICHAI POWER CO LTD
- Filing Date
- 2026-06-15
- Publication Date
- 2026-07-17
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Figure CN122407429A_ABST
Abstract
本申请公开了一种甲醇增程器的预热控制方法、装置、电子设备和车辆，涉及增程车辆领域，该方法应用于甲醇增程器的预热控制系统中，该系统至少包括两个用于加热发动机冷却液的加热装置。通过在甲醇增程器起动前，获取动力电池的荷电状态值。将荷电状态值与至少一个预设阈值进行比较，并根据比较结果启动第一加热装置和 / 或第二加热装置，对发动机冷却液进行预热。通过设置双阈值实现了高电量单用PTC、低电量单用水锅炉、中等电量双热源协同的三区间精细控制，并具备故障冗余切换和闭环温度监测功能。解决了甲醇发动机低温起动困难的问题，同时优化了整车能量管理，避免了电池电量过度消耗，提高了系统的可靠性和智能化水平。
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