The invention discloses a vehicle-mounted terminal built-in power supply voltage region management mode, which belongs to the technical field of vehicle-mounted terminal built-in power supplies, and comprises the following steps: a vehicle-mounted terminal built-in power supply voltage acquisition period is 25ms, and an average value is solved every four times of acquisition, namely, a power supply voltage value is obtained every 100ms. The precision of power supply voltage acquisition is 1%, the worst case does not exceed 3%, a hysteresis interval is defined according to the precision, and the vehicle-mounted terminal is ensured to work normally in a normal voltage range. Before the vehicle-mounted terminal really opens the T service, the battery needs to be in a forbidden state as far as possible, the battery software switch is used for the purpose, and when the battery software switch is in a closed state, the battery is disconnected, and the self-discharge of the battery only consumes the current of the sneak loop; when the battery software switch is in an on state, the battery is in a normal mode, a battery charging and discharging management control process is built in the vehicle-mounted terminal, the charging and discharging safety and the service life cycle of the battery are determined, and meanwhile the built-in battery charging and discharging management process is standardized.
本发明公开了一种车载终端内置电源电压压区管理方式,属于车载终端内置电源技术领域,包括:车载终端内置电源电压采集周期为25ms,每4次采集求取平均值,即每100ms获得一次电源电压值。电源电压采集的精度为1%,最坏情况不超过3%,按此定义迟滞区间,保证处于正常电压范围时车载终端正常工作。本发明在车载终端真正开通T服务之前,电池需要尽可能处于禁能状态,电池软件开关就是用作这个目的,当电池软件开关处于关闭状态时,电池断开,电池自放电只消耗潜回路电流;当电池软件开关处于打开状态时,电池处于正常模式,车载终端内置电池充放电管理控制过程,确定电池的充放电安全以及使用寿命周期,同时规范内置电池充放电管理流程。
Vehicle-mounted terminal built-in power supply voltage region management mode
一种车载终端内置电源电压压区管理方式
09.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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