Low-cost integrated intelligent cockpit central control display system

Abstract

The present invention discloses a low-cost integrated intelligent cockpit central control display system, which integrates the host of the instrument system and the vehicle infotainment system, and uses only one SOC chip to run the above dual systems to realize the dual functions of the instrument and the central control. Specifically, it includes a central control host equipped with an Android system and a central control screen connected to the central control host. The instrument display function is integrated on one side or in the corner of the central control screen with at least one application card of the Android system; the central control host is equipped with a SOC chip for running the functions of the vehicle infotainment system and the instrument system; the central control screen is equipped with an MCU chip for obtaining instrument information and driving the central control screen for display, and the MCU chip is provided with an independent power supply unit. The intelligent cockpit domain control integrated display solution provided by the present invention greatly simplifies the development difficulty, saves development time and costs, and significantly reduces the cost of the intelligent cockpit while effectively avoiding technical barriers, while ensuring the instrument and entertainment functions.

Description

Technical Field

[0001] The present invention relates to the technical field of smart cockpits, and in particular to a low-cost integrated smart cockpit central control display system. Background Art

[0002] In order to reduce costs and increase efficiency, most of the current smart cockpit systems of electric vehicles use domain controller solutions. Due to different security requirements, different operating systems need to be run (such as Linux / QNX for instruments and Android for infotainment systems). Through Hypervisor technology (Hypervisor literally means super supervisor, also known as virtual machine monitor VMM in the industry), different operating systems can be run on the same main control chip. The system architecture based on Hypervisor is equivalent to giving the smart cockpit an operating system to coordinate different chips, different chip underlying software, and different application layer software, so that the entire architecture and system can work efficiently. The introduction of Hypervisor technology allows hardware and software resources to be flexibly allocated in different GUEST OS according to product requirements.

[0003] However, the mature hypervisor solutions currently on the market are expensive and difficult to develop due to the complex cockpit architecture. Summary of the invention

[0004] In view of the above, the present invention aims to provide a low-cost integrated intelligent cockpit central control display system to solve the above-mentioned technical problems.

[0005] The technical solution adopted by the present invention is as follows:

[0006] The present invention provides a low-cost integrated intelligent cockpit central control display system, which includes: a central control host equipped with an Android system and a central control screen connected to the central control host, wherein an instrument display function is integrated in the central control screen, and at least one application card of the Android system is displayed on one side or corner of the central control screen;

[0007] The central control host is equipped with a SOC chip for running both the in-vehicle infotainment system and the instrument system;

[0008] The central control screen is configured with an MCU chip for acquiring instrument information and driving the central control screen to display it, and the MCU chip is provided with an independent power supply unit.

[0009] In at least one possible implementation, when the entire vehicle is locked and in sleep mode, the central control display system only turns off the central control screen and the power amplifier, and the central control host runs in a low power consumption mode.

[0010] In at least one possible implementation, a lithium iron phosphate battery is used to power the central control host.

[0011] In at least one possible implementation, the central control display system has a preset health monitoring mechanism, including triggering the Android system to perform a restart and cleanup when the vehicle is locked and dormant and at night; and during the restart cycle, if it is detected that the vehicle is powered on, the current health monitoring is automatically skipped.

[0012] In at least one possible implementation manner, the restart cleanup measure includes at least any one of the following: ending a process, clearing a cache, and optimizing an operating system.

[0013] In at least one possible implementation, the instrument display function includes continuously displaying at least one of the following instrument information in a status bar on one side of the central control screen: vehicle speed, battery level, power, gear position, and remaining mileage.

[0014] Compared with the prior art, the main design concept of the present invention is to integrate the instrument system and the host of the in-vehicle infotainment system, and use only one SOC chip to run the above dual systems to achieve the dual functions of the instrument and the central control. Specifically, it includes a central control host equipped with an Android system and a central control screen connected to the central control host. The instrument display function is integrated in the central control screen, and at least one application card of the Android system is displayed on one side or corner of the screen of the central control screen; the central control host is configured with a SOC chip for running the functions of the in-vehicle infotainment system and the instrument system; the central control screen is configured with an MCU chip for obtaining instrument information and driving the central control screen for display, and the MCU chip is provided with an independent power supply unit. The intelligent cockpit domain control integrated display solution provided by the present invention greatly simplifies the development difficulty, saves development time and costs, and significantly reduces the cost of the intelligent cockpit while effectively avoiding technical barriers, while ensuring the functions of the instrument and IVI. DETAILED DESCRIPTION

[0015] The present invention proposes an embodiment of a low-cost integrated intelligent cockpit central control display system, specifically, including:

[0016] A central control host equipped with an Android system and a central control screen connected to the central control host, the instrument display function is integrated in the central control screen, and is displayed on one side or in a corner (such as the upper left corner) of the central control screen with at least one application card of the Android system; for example, the instrument information displayed in a continuous display manner in the status bar on one side of the central control screen includes: vehicle speed, battery level, power, gear position, remaining mileage, etc.

[0017] The central control host is equipped with a SOC chip for running the functions of both the In-Vehicle Infotainment system (IVI for short) and the instrument system.

[0018] On the basis of the above examples, in order to solve the problem of fast power-on of the central control host / central control screen, the present invention proposes: since the startup time of the Android system in the host is about 20s, and the startup time of the traditional instrument is about 1s, the central control host can be kept powered on when the whole vehicle is locked and in sleep mode, that is, when the whole vehicle is locked and in sleep mode, only the screen is turned off and the power amplifier is turned off, while the core processing chip and the control unit are not powered off, ensuring that the system is in low power consumption mode, so that fast startup can be achieved.

[0019] Furthermore, in order to solve the problem that the central control host may cause high energy consumption of the whole vehicle if it is not powered off, such as causing the whole vehicle to be powered by a low-voltage small battery (small battery), and the whole vehicle cannot be started, the present invention proposes a solution of using a lithium iron phosphate low-voltage battery. This low-voltage battery mainly plays the following four roles:

[0020] 1) Meet the static power consumption of electrical appliances during the period when the vehicle is electrically locked;

[0021] 2) Meet the power consumption of electrical appliances from vehicle startup to high-voltage operation;

[0022] 3) Meet the power consumption of electrical appliances during vehicle OTA upgrade;

[0023] 4) As a safety redundancy for power supply, it maintains power supply in scenarios such as upper high voltage abnormalities.

[0024] One of the considerations for selecting lithium iron phosphate batteries in this embodiment is that lithium iron phosphate batteries are safer and less prone to thermal runaway, and are therefore preferably used to power the central control host.

[0025] Continuing from the previous text, in order to ensure the stability of the system and prevent it from freezing, the present invention proposes a health monitoring mechanism, which can, for example, run continuously for 7 days, and use the night time to restart the system once to clean up the system garbage, ensuring that the system is stable and reliable. It can also be pointed out from this concept that during the restart cycle, if the vehicle is powered on, the health monitoring will be automatically skipped until the next monitoring cycle. This is because during the shutdown process of the Android system, the system will close all running processes, including applications running in the background and cached data. When it is started again, the system can release the memory space accumulated by running programs before.

[0026] Specifically, the cleaning process mainly includes but is not limited to executing at least one of the following measures:

[0027] (1) End process: The system will identify and end programs that are running in the background but are no longer needed, freeing up memory and CPU resources.

[0028] (2) Clear cache: Many applications generate cache data during their operation. These caches can be cleared after shutting down the phone, which helps reduce the storage space used by the phone.

[0029] (3) Optimizing the system: Shutting down the phone also gives the phone’s operating system a chance to optimize itself, such as updating system files and configurations, thereby keeping the system running smoothly.

[0030] Finally, it can be added that in order to prevent the Android system from freezing and causing the user to be unable to see any information, an additional MCU chip can be configured for the display function of the central control screen, which is only used to transmit key instrument CAN signals (such as the aforementioned vehicle speed, battery level, power, gear position, and remaining mileage). Preferably, the MCU chip can be equipped with an independent power supply unit. In the special scenario where the Android system freezes, the MCU can independently obtain relevant information from the vehicle CAN and drive the central control screen to display it, ensuring that users will not miss key vehicle operation information.

[0031] In summary, the main design concept of the present invention is to integrate the instrument system and the host of the in-vehicle infotainment system, and use only one SOC chip to run the above dual systems to achieve the dual functions of the instrument and the central control. Specifically, it includes a central control host equipped with an Android system and a central control screen connected to the central control host. The instrument display function is integrated in the central control screen, and at least one application card of the Android system is displayed on one side or corner of the screen of the central control screen; the central control host is configured with a SOC chip for running both the in-vehicle infotainment system and the instrument system; the central control screen is configured with an MCU chip for obtaining instrument information and driving the central control screen for display, and the MCU chip is provided with an independent power supply unit. The intelligent cockpit domain control integrated display solution provided by the present invention greatly simplifies the development difficulty, saves development time and costs, and significantly reduces the cost of the intelligent cockpit while effectively avoiding technical barriers, while ensuring the functions of the instrument and IVI.

[0032] If the expressions expressing orientation are mentioned in the embodiments of the present invention, they are relative concepts based on the embodiments. In addition, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b, c can be single or multiple.

Claims

1. A low-cost integrated intelligent cockpit central control display system, characterized in that: include: A central control host equipped with an Android system and a central control screen connected to the central control host, wherein the instrument display function is integrated into the central control screen and at least one application card of the Android system is displayed on one side or in a corner of the central control screen; The central control host is equipped with a SOC chip for running both the in-vehicle infotainment system and the instrument system; The central control screen is configured with an MCU chip for acquiring instrument information and driving the central control screen to display it, and the MCU chip is provided with an independent power supply unit.

2. The low-cost integrated intelligent cockpit central control display system according to claim 1 is characterized in that: When the vehicle is locked and in sleep mode, the central control display system only turns off the central control screen and the power amplifier, and the central control host runs in low power consumption mode.

3. The low-cost integrated intelligent cockpit central control display system according to claim 2 is characterized in that: A lithium iron phosphate battery is used to power the central control host.

4. The low-cost integrated intelligent cockpit central control display system according to claim 1 is characterized in that: The central control display system has a preset health monitoring mechanism, including triggering the Android system to perform restart and cleanup when the entire vehicle is locked and dormant and at night; and during the restart cycle, if it is detected that the vehicle is powered on, the current health monitoring is automatically skipped.

5. The low-cost integrated intelligent cockpit central control display system according to claim 4 is characterized in that: The restart and cleanup measures include at least any one of the following: ending a process, clearing a cache, and optimizing an operating system.

6. The low-cost integrated intelligent cockpit central control display system according to any one of claims 1 to 5, characterized in that: The instrument display function includes displaying at least one of the following instrument information in a continuous display manner in a status bar on one side of the central control screen: vehicle speed, battery level, power, gear position, and remaining mileage.