The invention relates to the technical field of vehicle fuel systems, in particular to a control method and device of a fuel evaporation and discharge system, a vehicle and a medium, the fuel evaporation and discharge system comprises a fuel tank pressure detection part, a pressure relief part and an execution part arranged on a refueling cover plate, and the method comprises the steps that whether a refueling instruction of the vehicle is received or not is detected; when a refueling instruction is received, the pressure relief piece is controlled to be opened, so that oil steam in the oil tank is discharged into the atmosphere; receiving the current oil tank pressure sent by the oil tank pressure detection part, and judging whether the current oil tank pressure is smaller than or equal to a preset opening threshold value; and when the current oil tank pressure is smaller than or equal to the preset opening threshold value, a refueling cover plate opening instruction is sent to an execution part, so that refueling is conducted after the refueling cover plate is opened through the execution part. The problem that potential safety hazards exist due to the fact that the oil tank cap cannot be normally opened due to low pressure influence in the oil tank in the evaporation diagnosis and detection process of the oil tank is solved, and the risk that the oil tank cap cannot be opened is avoided.
本申请涉及车辆燃油系统技术领域,特别涉及一种燃油蒸发排放系统的控制方法、装置、车辆及介质,其中,燃油蒸发排放系统包括:油箱压力检测件、泄压件和设置于加油盖板上的执行件,方法包括:检测是否接收到车辆的加油指令,并在接收到加油指令时,控制泄压件开启,以将油箱内的油蒸汽泄入大气中;接收油箱压力检测件发出的当前油箱压力,并判断当前油箱压力是否小于或等于预设开启阈值;在当前油箱压力小于或等于预设开启阈值时,发送加油盖板开启指令至执行件,以通过执行件开启加油盖板后进行加油。解决了在油箱进行蒸发诊断检测过程中,由于油箱内的低压影响导致油箱盖无法正常开启而存在安全隐患等问题,规避了油箱盖无法打开的风险。
Control method and device of fuel evaporative emission system, vehicle and medium
燃油蒸发排放系统的控制方法、装置、车辆及介质
2022-11-15
Patent
Elektronische Ressource
Chinesisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |