CN113306513B - Infotainment system for vehicle, control method of infotainment system and vehicle - Google Patents

Infotainment system for vehicle, control method of infotainment system and vehicle Download PDF

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CN113306513B
CN113306513B CN202110571796.6A CN202110571796A CN113306513B CN 113306513 B CN113306513 B CN 113306513B CN 202110571796 A CN202110571796 A CN 202110571796A CN 113306513 B CN113306513 B CN 113306513B
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infotainment system
state
vehicle
current
control method
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CN113306513A (en
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孙小伍
杨宁
刘金成
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Wuhan Lotus Cars Co Ltd
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Wuhan Lotus Cars Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention provides an infotainment system for a vehicle, a control method thereof and the vehicle, and relates to the technical field of electronic appliances of the vehicle. The control method comprises the following steps: acquiring the state information of the whole vehicle, wherein the state information of the whole vehicle comprises a flameout signal of the vehicle and the current residual electric quantity of a storage battery of the vehicle; and after the flameout signal is received and the current residual electric quantity is greater than or equal to the preset residual electric quantity, controlling an infotainment system of the vehicle to enter a dormant state, wherein in the dormant state, core components in the infotainment system are in a low-power-consumption working state, and auxiliary components in the infotainment system are in a closed state. The control method provided by the invention can improve the starting speed of the infotainment system.

Description

Infotainment system for vehicle, control method of infotainment system and vehicle
Technical Field
The invention relates to the technical field of electronic appliances of vehicles, in particular to an infotainment system for a vehicle, a control method thereof and the vehicle.
Background
The existing infotainment systems of vehicles all have the technical problem of slow start, which causes that the start time of waiting for the infotainment systems is longer after a driver gets on the vehicle.
In order to solve this problem, various processing methods are adopted in the prior art, and the following methods are common:
1. the problem of slow system starting is covered by using the boot animation or logo, the boot animation mostly exceeds more than 8S, and the total boot time exceeds 16S;
2. the starting process of the information entertainment system is deeply optimized, the human-computer interface which is most concerned by a user is preferentially displayed, and the total starting time is still more than 12s;
3. with the STD technique, the boot speed can be increased by a small margin, but the boot time is still too long;
4. the temporary parking requirement is met by closing a screen, a power amplifier and other high-power equipment, but the power consumption is too large, and the duration is limited;
5. when the power state of the whole vehicle is off, the infotainment system is set to enter a dormant state, specifically, the main processor of the host does not work, the MCU has low power consumption, the CAN sleep mode, the Bluetooth and the like do not work, but the main processor still needs to be restarted when the infotainment system enters the working state from the dormant state, and the starting time is still too long.
However, none of the above-mentioned processing methods can fundamentally solve the technical problem of lengthy booting of the infotainment system.
Disclosure of Invention
It is an object of a first aspect of the invention to provide a control method that can increase the start-up speed of an infotainment system while also balancing the range of the vehicle.
It is a further object of the first aspect of the invention to provide a method of controlling an infotainment system which ensures that the battery is not fed.
It is an object of a second aspect of the invention to provide an infotainment system that is faster at boot.
It is an object of a third aspect of the invention to provide a vehicle having an infotainment system with a relatively high boot speed.
According to the first aspect described above, the present invention provides a control method for an infotainment system of a vehicle, comprising:
acquiring the state information of the whole vehicle, wherein the state information of the whole vehicle comprises a flameout signal of the vehicle and the current residual electric quantity of a storage battery of the vehicle;
and after the flameout signal is received and the current residual electric quantity is greater than or equal to the preset residual electric quantity, controlling an infotainment system of the vehicle to enter a dormant state, wherein in the dormant state, a core component in the infotainment system is in a low-power-consumption working state, and an auxiliary component in the infotainment system is in a closed state.
Optionally, the control method further includes:
acquiring the current temperature of the environment of the infotainment system in the dormant state at preset intervals;
determining the current power consumption of the infotainment system according to the current temperature and a preset mapping relation table, wherein the preset mapping relation table stores the relation between the temperature and the power consumption of the infotainment system;
determining a current target sleep time for the infotainment system to remain in the sleep state according to the current power consumption and the current remaining capacity, the current target sleep time being a sum of a time for which the infotainment system has remained in the sleep state and a time for which the infotainment system can continue to remain in the sleep state.
Optionally, the current temperature and the current remaining capacity acquisition time are the same or adjacent.
Optionally, the control method further includes:
controlling the infotainment system to enter a closed state when any of the following conditions is met:
the residual capacity is less than the preset residual capacity;
said infotainment system remaining in said dormant state for a time exceeding any of said current target dormant times;
the charging and discharging information of the power battery does not meet the condition that the power battery charges the storage battery;
and in the closed state, the core component and the auxiliary component in the infotainment system are both in the closed state.
Optionally, the control method further comprises:
and after a vehicle power-on signal contained in the whole vehicle state information is acquired, controlling an infotainment system of the vehicle to enter an open state from the dormant state, wherein all components in the infotainment system are in working states in the open state.
Optionally, the core component includes a main processor, a memory, and a power chip, and the auxiliary component includes a display microphone and/or a network.
Optionally, the preset time is 1 hour.
According to the second aspect described above, the present invention also provides an infotainment system for a vehicle, characterized by comprising:
a control device comprising a memory and a processor, the memory having stored therein a control program, the control program when executed by the processor for implementing a control method in accordance with the infotainment system.
Optionally, the infotainment system further comprises:
the system comprises a first switch assembly and a second switch assembly, wherein the first switch assembly is used for switching on and off a storage battery and core components of the infotainment system, and the second switch assembly is used for switching on and off the storage battery and auxiliary components of the infotainment system.
According to the third aspect, the invention also provides a vehicle comprising the infotainment system.
The control method for the infotainment system of the vehicle firstly collects the state information of the whole vehicle, the state information of the whole vehicle comprises a flameout signal and the current residual electric quantity of a storage battery, when the flameout signal is obtained and the current residual electric quantity is greater than or equal to the preset residual electric quantity, the infotainment system is controlled to enter a dormant state (STR state), and when the STR state is reached, the core components of the infotainment system are still in a low-power-consumption working state, but the auxiliary components enter a closed state. Compared with the prior art, the embodiment adds the STR state between the working state and the closed state of the infotainment system. In the STR state, only the core components are kept in the low-power-consumption working state, so that the time in the STR state is prolonged, the electric quantity consumption of the storage battery is reduced to the maximum extent, and the electric quantity consumption of the storage battery charged by the power battery is reduced to the maximum extent, so that the endurance mileage of the scheme of the application is close to that of the existing scheme only in the opening and closing states to the maximum extent. Furthermore, in the STR state, the core components are kept in a low-power-consumption working state, and when the infotainment system needs to be started next time, the auxiliary components are only required to be controlled to enter the working state from the closed state, so that the starting time of the infotainment system can be shortened, and the starting time of the infotainment system can be shortened to within 5s according to the test. Therefore, the control method can not only improve the starting time of the infotainment system, but also balance the endurance mileage of the vehicle.
Further, when the remaining capacity is less than the preset remaining capacity, the infotainment system is controlled to enter the closed state, which is applicable to the situation that the infotainment system is in the STR state and the working state, namely, the infotainment system is controlled to enter the closed state no matter the infotainment system is in the STR state or the working state as long as the remaining capacity is less than the preset remaining capacity, so that the storage battery can be prevented from feeding electricity. Of course, in order to further ensure that the storage battery does not feed power, the preset remaining capacity set in the working state may be greater than the preset remaining capacity set in the STR state, for example, the preset remaining capacity is 85% in the working state, and 30% in the sleep state. Similarly, the charging and discharging information of the power battery does not meet the condition that the power battery charges the storage battery, and is also suitable for the STR state and the working state of the infotainment system. The charging and discharging information of the power battery does not meet the condition that the power battery charges the storage battery, and generally, the electric quantity of the power battery is smaller than a certain value. Through the means, the accumulator can be ensured not to feed electricity to a great extent.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a block flow diagram of a control method for an infotainment system of a vehicle according to one embodiment of the invention;
FIG. 2 is a block flow diagram of a control method for an infotainment system of a vehicle according to another embodiment of the invention;
fig. 3 is a block diagram of the structure of an infotainment system for a vehicle according to one embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Fig. 1 is a block flow diagram of a control method for an infotainment system of a vehicle according to one embodiment of the invention. As shown in FIG. 1, the present invention provides a control method for an infotainment system of a vehicle, which generally includes:
step S10: acquiring the state information of the whole vehicle, wherein the state information of the whole vehicle comprises a flameout signal of the vehicle and the current residual electric quantity of a storage battery of the vehicle;
step S20: and after receiving the flameout signal and the current residual capacity is greater than or equal to the preset residual capacity, controlling the infotainment system of the vehicle to enter a dormant state, wherein in the dormant state, core components in the infotainment system are in a low-power-consumption working state, and auxiliary components in the infotainment system are in a closed state.
The control method for the infotainment system of the vehicle provided by this embodiment first collects the state information of the entire vehicle, where the state information of the entire vehicle includes a flameout signal and the current remaining power of the storage battery, and when the flameout signal is obtained and the current remaining power is greater than or equal to the preset remaining power, the infotainment system is controlled to enter a dormant state (STR state), and in the STR state, the core components of the infotainment system are still in a low-power-consumption working state, but the auxiliary components enter a closed state. Compared with the prior art, the embodiment adds the STR state between the working state and the closed state of the infotainment system. In the STR state, only the core components are kept in the low-power-consumption working state, so that on one hand, the time in the STR state is prolonged, on the other hand, the electric quantity consumption of the storage battery can be reduced to the maximum extent, and further, the electric quantity consumption of the storage battery charged by the power battery is reduced to the maximum extent, and the endurance mileage of the scheme of the application is close to that of the existing scheme only in the open state and the closed state to the maximum extent. Further, in the STR state, the core device is kept in the low power consumption operating state, and when the infotainment system needs to be started next time, only the auxiliary device needs to be controlled to enter the operating state from the off state, so that the startup time of the infotainment system can be shortened. Therefore, the control method provided by the embodiment can not only improve the starting time of the infotainment system, but also balance the driving mileage of the vehicle.
Fig. 2 is a block flow diagram of a control method of an infotainment system for a vehicle according to another embodiment of the invention. As shown in fig. 2, in a specific embodiment, the control method further includes:
step S30: acquiring the current temperature of the environment of the infotainment system in a dormant state at intervals of preset time;
step S40: determining the current power consumption of the infotainment system according to the current temperature and a preset mapping relation table, wherein the preset mapping relation table stores the relationship between the temperature and the power consumption of the infotainment system;
step S50: and determining the current target sleep time for keeping the infotainment system in the sleep state according to the current power consumption and the current remaining power, wherein the current target sleep time is the sum of the time for keeping the infotainment system in the sleep state and the time for keeping the infotainment system in the sleep state.
The time that the infotainment system can continuously keep in the STR state is influenced by the current power consumption and the current residual capacity, generally, if the current power consumption is larger, the power consumption of the storage battery is correspondingly larger, correspondingly, the smaller the residual capacity of the storage battery is, the shorter the time that the infotainment system keeps in the STR state is, and therefore, the current target sleep time can be calibrated through the current power consumption and the current residual capacity.
In the above embodiment, the current power consumption of the infotainment system is determined according to the current temperature of the environment in which the infotainment system is located, then the time during which the infotainment system can continue to be kept in the STR state is obtained according to the current power consumption and the current remaining power, and the time during which the infotainment system can continue to be kept in the STR state is added to the time during which the infotainment system has been kept in the STR state to obtain the current target sleep time. In the above embodiment, the current temperature and the current remaining power are acquired once every preset time, so that the current temperature and the current remaining power are updated in real time, the current target sleep time can be corrected in real time, and the accuracy of the current target sleep time is ensured.
The longer the STR state can last, the higher the probability perception of the user that the user starts quickly, and the better the user experience. In the STR state, the infotainment system continues to be powered by the storage battery, and the duration of the STR state is proportional to the amount of power that can be supplied by the storage battery and inversely proportional to the quiescent current of the infotainment system in the STR state. The current target sleep time is set on the principle that it does not result in battery feeding and the vehicle cannot be used. Because the electric vehicle has a strategy that a power battery charges a storage battery, the duration of the electric vehicle is far longer than that of a fuel vehicle. The logic of the fuel vehicle and the electric vehicle may differ as follows:
before the fuel vehicle enters the STR state, the current target dormancy time of the STR state is set according to factors such as the current remaining capacity and the current temperature of the storage battery.
After the electric vehicle receives the message that the power battery sent by the VCU does not meet the charging condition of the storage battery, the infotainment system actively exits the STR state and enters the closed state to save the energy consumption of the storage battery.
The power supply design for infotainment systems needs to meet the requirement of maximally reducing the quiescent current in STR state. The recommended value is 2mA, and the maximum value is preferably controlled within 8 mA.
In a specific embodiment, the current temperature and the current remaining power acquisition time are coincident or adjacent. Preferably, the current temperature and the current remaining power acquiring time are consistent, so that the accuracy of the acquired current sleep time can be maximally guaranteed.
In a specific embodiment, the control method further includes:
controlling the infotainment system to enter a closed state when any one of the following conditions is met:
the residual capacity is less than the preset residual capacity;
the time that the infotainment system remains in the dormant state exceeds any current target dormancy time;
the charging and discharging information of the power battery does not meet the condition that the power battery charges the storage battery;
and in the closed state, all components in the information entertainment system are in the closed state.
In this embodiment, the infotainment system is controlled to enter the shutdown state when the remaining capacity is less than the preset remaining capacity, which is applicable when the infotainment system is in the STR state and the working state, i.e., the infotainment system is controlled to enter the shutdown state no matter the infotainment system is in the STR state or the working state as long as the remaining capacity is less than the preset remaining capacity. Of course, in order to further ensure that the storage battery does not feed power, the preset remaining capacity set in the working state may be greater than the preset remaining capacity set in the STR state, for example, the preset remaining capacity is 85% in the working state, and 30% in the sleep state. Similarly, the charging and discharging information of the power battery does not meet the condition that the power battery charges the storage battery, and is also suitable for the STR state and the working state of the infotainment system. The condition that the charging and discharging information of the power battery does not meet the condition that the power battery charges the storage battery is generally that the electric quantity of the power battery is smaller than a certain value. Through the means, the accumulator can be ensured not to feed electricity to a great extent.
In a specific embodiment, the control method further includes:
after a vehicle power-on signal contained in the whole vehicle state information is acquired, an infotainment system of the vehicle is controlled to enter an open state from a dormant state, and in the open state, core components and auxiliary components in the infotainment system are in working states.
In the above embodiment, all the components include the core component and the auxiliary component, and in the STR state, the core component is originally kept in the low power consumption operating state, so that when the STR state enters the operating state, only the auxiliary component needs to be turned on, and the boot speed can be increased to the maximum extent.
In a specific embodiment, the core components include a main processor, a memory bank and a power chip, and the auxiliary components include a display screen, a microphone and/or a network. Specifically, the auxiliary components further comprise peripheral modules such as a touch screen, memories such as a Flash/eMMC/UFS, an audio DSP, a video input/output, a Bluetooth/WIFI, a USB peripheral and a network. When a flameout signal of the whole vehicle is received, the memory freezes state data of each software in the infotainment system, and after a power-on signal is received, the stored data are unfrozen from the memory and are directly used.
In a specific embodiment, the predetermined time is 1 hour. In a preferred embodiment, the predetermined time is set in the STR state and the operating state of the infotainment system, respectively, for example, in the STR state, the predetermined time is 0 to 10 hours, preferably 1 hour, and in the operating state, the predetermined time is 0 to 10 minutes, preferably 1 minute.
Compared with the STD technology in the prior art, the method and the device do not need to write the nonvolatile memory when the infotainment system enters the STR state, and have no influence on the service life of the nonvolatile memory.
Fig. 3 is a block diagram of the structure of an infotainment system for a vehicle according to one embodiment of the invention. As shown in fig. 3, the present invention also provides an infotainment system for a vehicle, which generally includes a control device 10, the control device 10 including a memory 11 and a processor 12, the memory 11 storing a control program, the control program being executed by the processor 12 to implement the control method of the infotainment system provided according to any one of the above-described embodiments. The processor 12 may be a Central Processing Unit (CPU), a digital processing unit, or the like. The processor 12 transceives data through the communication interface. The memory 11 is used for storing programs executed by the processor 12. The memory 11 is any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, or a combination of memories. The above-described computing program may be downloaded from a computer readable storage medium to a corresponding computing/processing device or to a computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The information entertainment system can be applied to most operating systems, including Android, linux, QNX, windows, wince and the like, so that the problem of low starting speed of the operating systems can be solved.
In a specific embodiment, the infotainment system further comprises a first switch assembly and a second switch assembly, wherein the first switch assembly is used for switching on and off the storage battery and core components of the infotainment system, and the second switch assembly is used for switching on and off the storage battery and auxiliary components of the infotainment system. In other embodiments, the first and second switch assemblies each include a plurality of switches, each switch individually corresponding to a component, thereby enabling individual control of each component.
The invention also provides a vehicle comprising the infotainment system provided in any one of the above embodiments, the infotainment system being controlled using the control method provided in any one of the above embodiments.
In a specific embodiment, the vehicle further comprises a vehicle control unit, the vehicle control unit is in communication connection with the infotainment system through a bus, and the infotainment system obtains a flameout signal and a power-on signal of the vehicle through the bus.
In a specific embodiment, the vehicle further comprises a battery management system for detecting a current remaining capacity of the storage battery, and a temperature sensor for detecting a current temperature of an environment in which the infotainment system is located.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (8)

1. A control method for an infotainment system of a vehicle, characterized by comprising:
acquiring the state information of the whole vehicle, wherein the state information of the whole vehicle comprises a flameout signal of the vehicle and the current residual electric quantity of a storage battery of the vehicle;
after the flameout signal is received and the current residual electric quantity is larger than or equal to the preset residual electric quantity, controlling an infotainment system of the vehicle to enter a dormant state, wherein in the dormant state, a core component in the infotainment system is in a low-power-consumption working state, and an auxiliary component in the infotainment system is in a closed state;
acquiring the current temperature of the environment of the infotainment system in the dormant state at preset intervals;
determining the current power consumption of the infotainment system according to the current temperature and a preset mapping relation table, wherein the preset mapping relation table stores the relation between the temperature and the power consumption of the infotainment system;
determining a current target sleep time for the infotainment system to remain in the sleep state according to the current power consumption and the current remaining power, the current target sleep time being a sum of a time for the infotainment system to have remained in the sleep state and a time for the infotainment system to be able to continue remaining in the sleep state;
controlling the infotainment system to enter a closed state when any of the following conditions is met:
the residual capacity is less than the preset residual capacity;
said infotainment system remaining in said dormant state for a time exceeding any of said current target dormant times;
the charging and discharging information of the power battery does not meet the condition that the power battery charges the storage battery;
and in the closed state, the core component and the auxiliary component in the infotainment system are both in the closed state.
2. The control method according to claim 1, wherein the current temperature and the acquisition time of the current remaining amount are coincident or adjacent.
3. The control method according to claim 1, characterized by further comprising:
and after a vehicle power-on signal contained in the whole vehicle state information is acquired, controlling an infotainment system of the vehicle to enter an open state from the dormant state, wherein all components in the infotainment system are in working states in the open state.
4. The control method according to claim 1, wherein the core components comprise a main processor, a memory and a power chip, and the auxiliary components comprise a display microphone and/or a network.
5. The control method according to claim 1, characterized in that the preset time is 1 hour.
6. An infotainment system for a vehicle, comprising:
control device comprising a memory and a processor, the memory having stored therein a control program for implementing a control method of an infotainment system according to one of claims 1 to 5 when the control program is executed by the processor.
7. The infotainment system according to claim 6, further comprising:
the system comprises a first switch assembly and a second switch assembly, wherein the first switch assembly is used for switching on and off a storage battery and core components of the infotainment system, and the second switch assembly is used for switching on and off the storage battery and auxiliary components of the infotainment system.
8. A vehicle comprising an infotainment system as claimed in any one of claims 6 or 7.
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