Vehicle-mounted controller bootloader sleep control method

By introducing an APP status monitoring module and KL15 signal detection into the vehicle controller, the bootloader can achieve autonomous sleep control when the APP is unavailable, which solves the power consumption problem of the vehicle controller when the APP is unavailable and improves the reliability of the vehicle electrical system and the protection of the small battery.

CN122131682APending Publication Date: 2026-06-02BOSCH HUAYU STEERING SYST CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BOSCH HUAYU STEERING SYST CO LTD
Filing Date
2026-03-30
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing technologies, the vehicle controller cannot automatically enter a low-power mode when the APP is unavailable, causing the small battery to continuously consume power and affecting the reliability of the entire vehicle.

Method used

By introducing an APP status monitoring module into the vehicle controller, the availability of the APP is periodically detected. After the KL15 signal switches to a low level, the Bootloader is triggered to enter a low-power mode, which shuts down unnecessary peripherals and redundant power supplies, and only retains the power supply for the core wake-up source.

Benefits of technology

It achieves autonomous sleep control of the bootloader in scenarios where the APP is unavailable, accurately reduces static current consumption, protects the small battery, improves the reliability of the vehicle's electrical system, and does not require additional hardware components, and is compatible with ECUs from different brands.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122131682A_ABST
    Figure CN122131682A_ABST
Patent Text Reader

Abstract

This invention relates to the field of automotive electronic control technology, specifically a bootloader sleep control method for an automotive controller. Compared with existing technologies, this invention uses app unavailability as a precondition for bootloader sleep, accurately solving the power management problem in app unavailability scenarios and preventing continuous battery drain. It requires no additional hardware components and can be implemented through software logic upgrades of existing automotive controllers. It is compatible with both AUTOSAR and non-AUTOSAR architectures, adapts to different brands of automotive ECUs, and reduces overall vehicle manufacturing costs. In sleep mode, it retains core wake-up source detection; after the KL15 ignition signal triggers, the bootloader wake-up and system initialization can be completed within 500ms, providing a rapid wake-up response without affecting normal vehicle startup and use.
Need to check novelty before this filing date? Find Prior Art