SOC lower limit control method for extended-range vehicle

• Main Authors: DING BANGWEI, LIU CHANGWEI, DONG QIULIN, YANG JIAN, GAO FAHUA, LI PENGLONG, LIANG QINGHUA
• Format: Patent
• Language: Chinese; English
• Published: 21.06.2024
• Subjects: ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

The invention provides an SOC lower limit control method for an extended-range vehicle. The method comprises the following steps: (1) analyzing vehicle using regularity and/or vehicle using habits of the vehicle; and (2) the SOC lower limit value of the vehicle with good vehicle using regularity and/or good vehicle using habit is reduced. According to the method, the vehicle using regularity and/or the vehicle using habit of the vehicle in the near period are/is scored, the SOC lower limit value of the vehicle with the good vehicle using regularity and/or the good vehicle using habit is lowered, the use range of the SOC is widened, and the risk caused by the too low electric quantity SOC is reduced as much as possible while the electric quantity endurance mileage is increased. 本发明提供了一种增程式车辆的SOC下限控制方法，该方法包括如下步骤：(1)分析车辆的用车规律性和/或用车习惯；(2)降低用车规律性好和/或用车习惯好的车辆的SOC下限值。本发明通过对近段时间车辆的用车规律性和/或用车习惯进行评分，下调用车规律性好和/或用车习惯好的车辆的SOC下限值，提升了SOC的使用范围，在提高电量续航里程的同时，尽可能的降低了电量SOC过低导致的风险。