Low-power-consumption RTC wake-up system and vehicle with low-power-consumption RTC wake-up system

By integrating vehicle data to determine the vehicle's stationary state and optimizing the RTC wake-up strategy, the problem of ineffective wake-up of the RTC wake-up system in short-term vehicle parking scenarios is solved, achieving low power consumption and stable main control sleep state, reducing battery load and system energy consumption.

CN121807385APending Publication Date: 2026-04-07厦门金龙汽车新能源科技有限公司
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Patent Information

Application Number
CN202511629305.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-07
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing RTC wake-up systems cannot dynamically adjust according to the actual usage scenario when the vehicle is briefly stopped or frequently started, resulting in an increase in the frequency of invalid wake-ups, increased battery load and system power consumption, and failing to achieve the goal of truly low power consumption.

Method used

The vehicle bus data is collected by the status data fusion module to determine the vehicle's static state and generate a multi-state static identification mark. Combined with the usage scenario determination module, the parking time and battery capacity degradation rate are analyzed. The wake-up strategy configuration module optimizes the RTC wake-up interval, and the main control sleep control module enters a low-power mode to ensure that the RTC wake-up strategy matches the battery health index.

Benefits of technology

It improves the accuracy of vehicle stationary state recognition, avoids false wake-up in short-term parking scenarios, optimizes the wake-up strategy, reduces power consumption during standby, and ensures the stability of the main control sleep state and the consistency of the state after wake-up.

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Abstract

The invention relates to the technical field of RTC awakening, in particular to a low-power-consumption RTC awakening system and a vehicle with the low-power-consumption RTC awakening system, and the system comprises a state data fusion module, a use condition judgment module, an awakening strategy configuration module, an RTC awakening setting module and a master control sleep control module. According to the invention, by combining the multi-dimensional static judgment standard of the vehicle-mounted state data and counting the number of the state items meeting the static condition, the identification mark is generated, and the judgment basis of the long-term parking use condition is constructed, so that the false triggering of the wake-up strategy setting in the short-time parking scene is avoided; the priority linkage optimization strategy matching result of the wake-up interval and the battery health index ensures that the wake-up period is prolonged, the unnecessary system wake-up times are reduced, the energy consumption in the standby period is reduced, the wake-up configuration efficiency is improved under the condition that the battery state is proper, and whether the low-power-consumption mode can be achieved or not is jointly judged by means of three state conditions. And the stability of the master control in the dormant state and the sustainable consistency of the state after awakening are ensured.
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