Power management system and control method for automobile body controller thereof

Abstract

The invention relates to a power management system and a control method for an automobile body controller thereof. In the invention, refine control for the load of automobile electrical equipment and management for a starter and a generator are realized; a controller area network (CAN) / local interconnect network (LIN) bus is utilized to monitor the power utilization states of the generator, storage batteries and an whole automobile; the voltage of the generator is regulated to realize dynamic charge and discharge for the electric quantity of the storage batteries; and large current loading iscut off in accordance with the dynamic states of the automobile, thus effectively reducing the oil consumption of the automobile, and decreasing the volumes of the storage batteries. A body control module (BCM) is integrated with the functions, thus not only avoiding increasing electronic modules, but also being simple in switching and strengthening the practicability of the power management system.

Description

technical field [0001] The invention relates to automotive electronics, in particular to a power management system and a control method for a vehicle body controller thereof. Background technique [0002] The main functions of the current passenger car body controller (BCM) are: lighting control, wiper control, glass lift control, door lock control and body anti-theft and other functions. The body controller controls most of the high-current loads of the vehicle, and it integrates CAN / LIN bus, which is conducive to communication with other modules and other function expansion. [0003] With the increasing number of on-board electrical appliances and electronic modules, the electrical load of the vehicle is getting larger and larger, and the battery capacity is required to be larger and larger. However, the current vehicle loads are extensively used, and the power is wasted for no reason. For example, when the battery is fully charged, the generator is still charging the ba...

AI Technical Summary

Problems solved by technology

However, the current vehicle load adopts extensive usage, and the power is wasted for no reason.

For example, when the battery is fully charged, the generator is still charging the battery; when starting, some electrical loads are still working to consume current, resulting in the battery not being able to concentrate the power to start the starter; Performance decline; when the vehicle decelerates, the energy of the generator is greater than the energy required by the load, and the electric energy is wasted, etc.

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