Method and system for reducing static power consumption of automobile body controller

Abstract

The invention discloses a method and a system for reducing static power consumption of an automobile body controller and belongs to the technical field of automobiles. The method for reducing static power consumption of the automobile body controller comprises steps as follows: acquiring an input signal of the automobile body controller; checking whether the input signal comprises a preset signal or not; if the input signal comprises the preset signal, judging that the current working mode is a sleep mode, and keeping the time in the sleep mode; checking whether the kept time reaches first preset time; if the kept time reaches the first preset time, controlling a wakeup signal detection circuit to be closed and controlling a non-wakeup signal detection circuit to be opened. With the adoption of the method for reducing static power consumption of the automobile body controller, the static power consumption of the automobile body controller can be effectively reduced, and the standing time of a whole automobile can be prolonged.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a method and system for reducing static power consumption of a vehicle body controller. Background technique [0002] With the development of automobile technology, people have higher and higher requirements for automobiles. In order to realize various comfort and safety functions, the Body Control Module (BCM for short) is the core of the electrical control of the vehicle. The higher the higher, the more and more input signals need to be processed in sleep mode, resulting in more and more static power consumption. The increase of BCM static power consumption will greatly reduce the standing time of the whole vehicle, resulting in the failure of the whole vehicle to start normally due to power feed, and increasing customer complaints. [0003] In the prior art, after the driver gets out of the car, he presses the lock key of the remote control key, and the BCM controls the a...

AI Technical Summary

Problems solved by technology

When the BCM is in sleep mode, since the input signal detection circuit of the BCM uses a single pull-up power supply to control the power supply of all input signals, all input signal detection circuits are always in the working state when in sleep mode, and all All input signals are monitored in real time, resulting in excessive static power consumption of the BCM, which greatly reduces the resting time of the vehicle

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