CN-116061848-B - Vehicle-mounted entertainment system power management interaction system and vehicle

CN116061848BCN 116061848 BCN116061848 BCN 116061848BCN-116061848-B

Abstract

The invention discloses a vehicle-mounted entertainment system power management interaction system and a vehicle, which comprise an SOC, an MCU and a screen, wherein the screen is respectively connected with the SOC and the MCU, the SOC is provided with a power core service module and an IPO interface, 5 GPIO pins are arranged between the SOC and the MCU, 3 pins are input by the SOC and output by the MCU, 2 pins are input by the MCU and output by the SOC, the GPIO pins are characterized by being connected with the chips at two ends, one end is used for controlling the high-low level interruption of the input, the other end is used for receiving the output, and the logic corresponding to the power state of the vehicle is triggered according to the interruption, wherein the power state of the vehicle comprises dormancy, semi dormancy, outage and work. The invention ensures that the SOC in the entertainment host and the MCU can synchronize state information through the high-low level change of the GPIO, finally achieves the hot start performance of the vehicle lifting machine, and ensures that the SOC has an active wake-up function.

Inventors

WANG QIANG
ZHANG YINGPENG
WANG XIAOWEI
ZHANG RUIJIE
MA QINJUN

Assignees

重庆长安汽车股份有限公司

Dates

Publication Date: 20260508
Application Date: 20230102

Claims (8)

1. The power management interactive system of the vehicle-mounted entertainment system is characterized by comprising an SOC, an MCU and a screen, wherein the screen is respectively connected with the SOC and the MCU, the SOC is provided with a power core service module and an IPO interface, 5 GPIO pins are arranged between the SOC and the MCU, 3 pins are input by the SOC and output by the MCU, 2 pins are input by the MCU and output by the SOC, one end of the GPIO pin is connected with two end chips, one end of the GPIO pin controls high and low level interruption, the other end of the GPIO pin receives the output, and the other end of the GPIO pin triggers corresponding vehicle power state logic according to the interruption, wherein the vehicle power state comprises dormancy, semi dormancy, power failure and work; the 5 GPIO pins are respectively an SOC awakening pin, an SOC state pin, a screen control pin, an MCU awakening pin and an ACC gear pin, wherein the SOC awakening pin, the SOC state pin and the screen control pin are all SOC input and MCU output, and the MCU awakening pin and the ACC gear pin are all MCU input and SOC output.
2. The power management interactive system of the vehicle entertainment system according to claim 1, wherein from power-OFF to semi-sleep, the whole vehicle is powered on, ACC is in OFF gear, 5 GPIO pins jump to low level, and a screen is not lightened.
3. The power management interactive system of the vehicle entertainment system according to claim 2, wherein from power-off to working state, the whole vehicle is powered ON, the ACC is in an ON gear, the SOC wakes up foot to low level, the SOC state foot to low level, the MCU wakes up foot to low level, the screen control foot to high level, the ACC gear foot to high level, and the screen is lighted.
4. The power management interactive system of the vehicle-mounted entertainment system according to claim 3, wherein from a semi-dormant state to an operating state, an ACC is changed from an OFF state to an ON state, or an MCU sends an unlocking and driving door signal to a power core service module through a serial port, the power core service module calls to exit an IPO interface to enable the system to comprehensively operate, and simultaneously pulls a screen control pin to a high level to finish a screen opening operation, so that a screen is lightened, wherein the SOC wake-up pin keeps a low level, the SOC state pin keeps a low level, the MCU wake-up pin keeps a low level, the screen control pin changes a high level, and an ACC gear is changed along with an actual state.
5. The power management interactive system of the vehicle-mounted entertainment system of claim 4, wherein from a working state to a semi-sleep state, the ACC is changed from an ON gear to an OFF gear, a lock signal or a door opening signal is timed to a preset time or sent to a power core service module, the power core service module calls an IPO interface to enable a system application layer to release resources, enter low power consumption, and pull a screen control pin to a low level to finish a screen closing operation, wherein the SOC wake-up pin keeps the low level, the SOC state pin keeps the low level, the MCU wake-up pin keeps the low level, the screen control pin changes the low level, and the ACC gear changes the low level.
6. The power management interactive system of the vehicle-mounted entertainment system of claim 5, wherein the power management interactive system is characterized in that from a semi-dormant state to a dormant state, the MCU pulls up an MCU wake-up pin to inform the SOC of dormancy, the SOC starts to release own dormancy locks, after the dormancy locks of a user space are released, the MCU is notified to enter the dormant state by pulling up the SOC state pin, the self process is suspended, the MCU cuts off the peripheral power supply controlled by the MCU after receiving state synchronization information to enable the MCU to enter a low power consumption state, wherein the SOC wake-up pin keeps a low level, the SOC state pin changes to a high level, the MCU wake-up pin changes to a high level, the screen control pin keeps a low level, and the ACC gear keeps a low level.
7. The power management interactive system of the vehicle entertainment system according to claim 6, wherein the power management interactive system is in a sleep-to-semi-sleep state, if the MCU is used as a wake-up source, the MCU pulls down the MCU wake-up pin, after the SOC receives the wake-up interrupt, the MCU starts running own bottom software and pulls down the SOC state pin to inform the MCU of returning to the semi-sleep state, if the SOC is used as the wake-up source, the SOC actively pulls up the SOC wake-up pin to inform the MCU of waking up, the MCU repeats the above process to pull down the wake-up pin and walk the wake-up flow, the SOC wake-up pin is pulled down along with the SOC state pin to complete the state jump from sleep to semi-sleep, and at the moment, the SOC wake-up pin is turned down, the SOC state pin is turned down, the MCU wake-up pin is turned down, the screen control pin is kept down, and the ACC gear pin is kept down.
8. A vehicle characterized in that the in-vehicle entertainment system power management interactive system according to any one of claims 1 to 7 is employed.

Description

Vehicle-mounted entertainment system power management interaction system and vehicle Technical Field The invention belongs to the technical field of intelligent cabins, and particularly relates to a vehicle-mounted entertainment system power management interaction system and a vehicle. Background The existing entertainment host machine completes switching between low power consumption and working modes in a mode that the MCU cuts off power supply to the SOC chip. However, this method has three disadvantages: (1) Each time of awakening is to restart the power-off of the vehicle, the starting speed of the existing vehicle system is slower, and the maximum speed after adjustment is more than 16 seconds; (2) The MCU can only be used as a unidirectional wake-up source, and the SOC can not be actively waken up; (3) The method of data interaction between the SOC and the MCU is not described in detail. Therefore, there is a need to develop a new in-vehicle entertainment system power management interactive system and vehicle. Disclosure of Invention The invention aims to provide a vehicle-mounted entertainment system power management interaction system and a vehicle, which enable an SOC in an entertainment host and an MCU to change synchronous state information through the high and low level of GPIO so as to achieve the hot start performance of a vehicle lifter and enable the SOC to have an active wake-up function. According to the invention, the power management interaction system of the vehicle-mounted entertainment system comprises an SOC, an MCU and a screen, wherein the screen is respectively connected with the SOC and the MCU, the SOC is provided with a power core service module and an IPO interface, 5 GPIO pins are arranged between two chips of the SOC and the MCU, 3 of the pins are input by the SOC and output by the MCU, 2 of the pins are input by the MCU and output by the SOC, the GPIO pins are characterized by being connected with two chips at the two ends, one end controls the input to be interrupted by high and low levels, the other end receives the output, and the logic corresponding to the power state of the vehicle is triggered according to the interruption, wherein the power state of the vehicle comprises dormancy, semi dormancy, outage and work. Optionally, the 5 GPIO pins are respectively an SOC wake-up pin, an SOC state pin, a screen control pin, an MCU wake-up pin and an ACC gear pin, wherein the SOC wake-up pin, the SOC state pin and the screen control pin are all SOC input and MCU output, and the MCU wake-up pin and the ACC gear pin are all MCU input and SOC output. Optionally, from power down to semi-sleep: The whole car is electrified, ACC is in the OFF gear, 5 GPIO pins jump to the low level, and the screen is not bright. Optionally, from power down to active state: The whole car is electrified, ACC is in an ON gear, the SOC wakes up the foot and changes low level, the SOC state foot changes low level, the MCU wakes up the foot and changes low level, the screen control foot changes high level, the ACC gear foot changes high level, and the screen is lightened. Optionally, from semi-sleep to active state: The ACC is changed from an OFF gear to an ON gear, or the MCU sends an unlocking and driving door signal to the power core service module through the serial port, the power core service module calls an exit IPO interface to enable the system to comprehensively operate, and simultaneously pulls a screen control pin to a high level to finish screen opening operation, so that a screen is lightened, wherein an SOC wake-up pin keeps a low level, an SOC state pin keeps a low level, an MCU wake-up pin keeps a low level, the screen control pin changes to a high level, and an ACC gear is changed along with the actual state. Optionally, from an operational state to a semi-dormant state: The ACC is changed from an ON gear to an OFF gear, the time is counted to a preset time or a locking signal or a driving signal is sent to a power core service module, then the power core service module calls an IPO interface to enable a system application layer to release resources, low power consumption is achieved, and simultaneously a screen control pin is pulled to a low level to finish screen closing operation, wherein the SOC wake-up pin keeps low level, the SOC state pin keeps low level, the MCU wake-up pin keeps low level, the screen control pin changes low level and the ACC gear changes low level. Optionally, from semi-dormant to dormant state: The MCU pulls up the MCU wake-up pin to inform the SOC of dormancy, the SOC starts to release the dormancy lock of the MCU, after the dormancy lock of the user space is released, the MCU is informed of the self-entering dormancy state by the SOC state-pulling pin, the self-process is suspended, the MCU cuts off the peripheral power supply controlled by the MCU after receiving the state synchronization information to enable the MCU to enter a low power consumption state,