A lin network slave node control system and method

Abstract

The present invention relates to a LIN network slave node control system and method, wherein the LIN network slave node control system includes an electric control part: the electric control part includes: a LIN signal detection receiving and control module, and processing connected to the LIN signal detection receiving and control module Module and the LIN signal sending module connected to the processing module; the processing module is also used to generate a control signal to the LIN signal detection receiving and control module to activate the LIN signal sending module according to the obtained analysis result, or disable the LIN signal sending module and / or disable the LIN signal sending module and / or or the control signal of the processing module; the LIN signal detection receiving and control module is used to activate the processing module according to the wake-up signal on the LIN bus, and is also used to activate the LIN signal sending module according to the control signal of the processing module, or disable the LIN signal sending module and / or processing modules.

Description

technical field [0001] The invention relates to the field of LIN (Local Interconnect Network) network technology, in particular to a system and method for controlling a slave node of a LIN network. Background technique [0002] The LIN protocol is one of the mainstream protocols currently used in automobiles. The LIN network structure adopting the LIN protocol includes a master node (master node) and multiple slave nodes (slave nodes), and the number of slave nodes is 15 at most. The slave node can be used as a detection component (sensor) or an execution component (actuator), such as various detection modules and motor drive modules in the car. Due to the large number of slave nodes, if the power consumption of each slave node can be as low as possible, it will help reduce the power consumption of the entire LIN network. [0003] In addition, for the slave nodes used in the automotive environment, the use environment also requires the slave nodes to reduce power consumptio...

AI Technical Summary

Problems solved by technology

The scheme described in this patent only activates the LIN sending module when it is necessary to send a LIN signal, which can indeed reduce the power consumption of the entire node to a certain extent, but the effect is not significant

see figure 2 , it can be seen that in addition to the LIN receiving module 60 and the LIN sending module 66, the entire node also includes a processing module 62 and an IGFS sensor module 64. When the processing module 62 and the (IGFS) sensor module 64 are not required to be used, these two modules are kept active. It will also cause additional power consumption

The LIN sending module only performs the logic level conversion function, while the processing module 62 is the control center of the entire node, and the sensor module 64 is a function execution component. Compared with the LIN sending module, the functions of these two modules are much more complicated and consume more power. Much, the invention does not involve how to reduce the power consumption of the module with the largest power consumption in the node, which is where the invention needs to be improved

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