Abstract: Aiming at the feeding problems caused by high battery energy consumption in different working scenarios during the life cycle of intelligent networked vehicles, an automobile mode management system is designed and developed to reduce the energy consumption of the vehicle electronic control unit (ECU), achieve the purpose of saving battery energy, and help to improve the service life of the battery. Firstly, the demand of power management in vehicle life cycle is analyzed, and the overall design scheme of mode management system is proposed. Secondly, different vehicle modes are defined according to the use scenario, and power saving control is carried out through function degradation. Then, the mode switching logic strategy and the power saving control method of the mode are introduced. Finally, the average static current value is compared between normal mode and transport mode by real vehicle. The analysis shows that the static current of the vehicle is lower in the transportation mode, and the static time of the vehicle is improved to achieve the effect of energy saving, which verifies the effectiveness of the mode management system.

Key words: Intelligent connected vehicle; ECU; Design and development; Vehicle mode management

摘要： 针对智能网联汽车整车生命周期内不同工作场景下电池能耗过高而引起的馈电问题， 设计开发一种汽车模式管理系统，降低整车电子控制单元（ECU）的能耗，达到节约蓄电池 电能的目的，有利于提升蓄电池的使用寿命。首先，分析整车生命周期内电源管理需求，并 提出模式管理系统的总体设计方案。其次，根据使用场景定义不同车辆模式，通过功能降级 对其进行节电控制。然后，介绍模式切换逻辑策略以及模式的节约用电控制方法。最后，通 过实车采集正常模式和运输模式下平均静态电流值进行对比。分析表明，运输模式下整车静 态电流更低，提高了整车静置时间达到节约电能的效果，验证模式管理系统的有效性。

关键词: 智能网联汽车；ECU；设计开发；车辆模式管理