LIN network slave node control system and LIN network slave node control method

Abstract

The present invention relates to a LIN network slave node control system, a LIN network slave node and a method. The LIN network slave node control system comprises an electronic control part, and the electronic control part comprises: a LIN signal detection, reception, and control module, a processing module connected to the LIN signal detection, reception, and control module and a LIN signal transmitting module connected to the processing module; the processing module generates, according to acquired analysis results, control signals for activating the LIN signal transmitting module, and transmits the control signals to the LIN signal detection, reception, and control module, or blocks LIN signal transmitting module and / or processing module control signals; the LIN signal detection, reception, and control module activates the processing module according to awake signals from a LIN bus, activates the LIN signal transmitting module according to the control signals from the processing module, or can block the LIN signal transmitting module and / or the processing module.

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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