New energy automobile power management system and control strategy thereof

• Main Authors: LI YUE, LIU XIAOJUN, WU ZHENYUN, WANG SHUAI, WU QUANJUN, JIANG XINJIE, ZHANG JIANWEI, ZHAO GUOJUN, MENG XULI
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• 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 a new energy automobile power management system and a control strategy thereof, and the system comprises a storage battery electric quantity sensor which is electrically connected with a battery energy control unit and is used for carrying out the real-time detection of the electric quantity of a storage battery, and transmitting an electric quantity signal to the battery energy control unit; and the battery energy control unit is used for setting the battery energy level according to the vehicle power supply state, the working state of the DCDC converter and the electric quantity signal, controlling the whole vehicle power supply according to the battery energy level, starting intelligent charging when the electric quantity of the storage battery is relatively low, and reminding a driver if the intelligent charging fails and the electric quantity is further reduced. And if the electric quantity is reduced again after reminding, the storage battery is closed. When the electric quantity