CN104044525B - The circuit of a kind of vehicle intelligent information system and control method - Google Patents
The circuit of a kind of vehicle intelligent information system and control method Download PDFInfo
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- CN104044525B CN104044525B CN201310080051.5A CN201310080051A CN104044525B CN 104044525 B CN104044525 B CN 104044525B CN 201310080051 A CN201310080051 A CN 201310080051A CN 104044525 B CN104044525 B CN 104044525B
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Abstract
The present invention provides the circuit of a kind of vehicle intelligent information system, and described circuit is provided with voltage-regulating circuit and multiple functional unit adaptive area；One end of described voltage-regulating circuit is connected with vehicle power, and the other end is connected with the plurality of functional unit adaptive area, for being adjusted the voltage of vehicle power, and exports multiple voltage to corresponding functional unit adaptive area；Described functional unit adaptive area is for arranging the functional unit of described vehicle intelligent information system, each described functional unit adaptive area is configured with corresponding adaptive voltage according to the power input requirements of described functional unit, and the voltage of described voltage-regulating circuit output to corresponding functional unit adaptive area is according to described adaptive Voltage Cortrol；The present invention also provides for the control method of a kind of system.The circuit that the present invention provides, by functional unit all layouts identical for all power input size in same functional unit adaptive area, it is simple to the Power Management Design of whole vehicle intelligent information system and management.
Description
Technical field
The present invention relates to automotive field, particularly relate to circuit and the control method of a kind of vehicle intelligent information system.
Background technology
Along with raising and the developing rapidly of communicating of people's living standard, automobile has been more than meeting by people
Simply ride instead of walk requirement, but need to share some Infotainments, information of vehicles under secure conditions
Monitoring mutual, long-range and diagnosis, the content such as some good services in 4S shop.Therefore, in such background
Under create Telematics(vehicle intelligent information system) demand of business.Vehicle intelligent information system is logical
Letter technology and the aggregation of information technology, with the 3G(3rd-generation that wireless speech or utilization are advanced,
G mobile communication) above network delivery is at line image or voice, at any time to the user in driving
The various information driven and needed for life are provided；Based on GPS system, pass through GPS(Global
Positioning System, global positioning system) alignment system and wireless communication networks, to driver, passenger,
TSP(Telematics Service Provider, automotive remote service provider) backstage or Vehicle mounted station provide
Transport information, reply emergency, remote vehicle diagnostics and financial transaction, news, Email,
The Internet services such as line amusement.
At present, hardware system that each producer is carried and each disunity of software system, vehicle power has a lot
Unstable latency, and vehicle intelligent information system has special requirement to power pack.This
Bright inventor studies discovery, for vehicle intelligent information system and concrete functional unit, the most corresponding
Power management scheme.Therefore, the power management policy of a kind of vehicle intelligent information system is needed badly.
Summary of the invention
For vehicle intelligent information system in background technology and concrete functional unit, the most corresponding power supply pipe
The technical problem of reason scheme, the present invention provides the management circuit of a kind of vehicle intelligent information system.
It is an object of the invention to be achieved through the following technical solutions:
The circuit of a kind of vehicle intelligent information system, described circuit is provided with voltage-regulating circuit and multiple function
Unit adaptive area；Wherein,
One end of described voltage-regulating circuit is connected with vehicle power, and the other end is fitted with the plurality of functional unit
Joining region to connect, described voltage-regulating circuit is for being adjusted the voltage of vehicle power, and exports multiple
Voltage is to functional unit adaptive area corresponding in the plurality of functional unit adaptive area；
Described functional unit adaptive area is for arranging the functional unit of described vehicle intelligent information system, each
Described functional unit adaptive area is configured with corresponding adaptive electricity according to the power input requirements of described functional unit
Pressure, the voltage of described voltage-regulating circuit output to corresponding described functional unit adaptive area is according to described suitable
Join Voltage Cortrol.
The circuit of the vehicle intelligent information system that the present invention provides, including for carrying out voltage tune to vehicle power
Whole voltage-regulating circuit, and the multiple functional unit adaptive areas for place function unit, Mei Gegong
Can be configured with corresponding adaptive voltage by unit adaptive area, described adaptive voltage is defeated according to the power of functional unit
Enter requirement configuration；Have corresponding with each functional unit in vehicle intelligent information system on the most described circuit
Functional unit adaptive area, when functional unit layout, can input the function that size is identical or close by power
The whole power supply of vehicle intelligent information system, in same functional unit adaptive area, is so easy in cell layout
The design of system and management, it is achieved the stable of vehicle intelligent information system quickly runs.
The present invention also provides for the control method of a kind of vehicle intelligent information system, described vehicle intelligent information system
Circuit as it was previously stated, layout has car entertainment control to process respectively on the plurality of functional unit adaptive area
Device, audiovisual presentation processor and remotely control processor, described control method include starting shooting rate-determining steps and
Shutdown rate-determining steps；Wherein,
Described start rate-determining steps order includes: connect vehicle power, the of described voltage-regulating circuit output
One power supply remotely controls processor after reaching operating voltage range and powers on；When switch for vehicle is in ACC shelves, institute
Stating the second source energising of voltage-regulating circuit output, described audiovisual presentation processor powers on；Described sound regards
Frequently the pin controlling the 3rd power supply energising of described voltage-regulating circuit output is set high by image processor, described
3rd power supply energising, described car entertainment controls processor and powers on；Described car entertainment controls the shape of processor
State pin sets high；The main button of sound equipment panel is pressed, and the startup of described audiovisual presentation processor includes backlight electric power
With the front panel power supply of touch screen power supply, system entry of backlight lamp open state；
Described shutdown rate-determining steps order includes: the described main button of sound equipment panel is short to be pressed, described audio frequency and video figure
As processor cuts out front panel power supply, backlight is extinguished, system entry of backlight lamp off status；Described car entertainment
The status pin controlling processor sets low, and described car entertainment controls processor and closes ready, closes described car
Carry the 3rd power supply of voltage-regulating circuit output described in the power supply of amusement control processor；Described audio frequency and video
Status pin is set low by image processor, and described audiovisual presentation processor cuts out ready, closes described sound and regards
Frequently the second source of voltage-regulating circuit output described in the power supply of image processor, system enters standby mould
Formula；Described long-range control processor detects the first source program low-voltage, and described long-range control processor proceeds to
Deep power down mode.
The vehicle intelligent information system control method that the present invention provides, can be effectively ensured vehicle intelligent information system
System is when startup and shutdown, and each functional unit of system or the electrifying timing sequence of hardware necessarily put in place, it is thus possible to
Enough realize the stable power-supplying of system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the circuit of the vehicle intelligent information system that the embodiment of the present invention provides；
Fig. 2 is the framework collocation schematic diagram of the vehicle intelligent information system that the embodiment of the present invention provides；
Fig. 3 is the first power module circuitry schematic diagram that the embodiment of the present invention provides；
Fig. 4 is the second source modular circuit schematic diagram that the embodiment of the present invention provides；
Fig. 5 is the power protecting circuit schematic diagram that the embodiment of the present invention provides；
Fig. 6 is the logic that in the vehicle intelligent information system that the embodiment of the present invention provides, functional unit part controls
Circuit diagram；
Fig. 7 is that the vehicle intelligent information system power supply status that the embodiment of the present invention provides migrates schematic diagram；
Fig. 8 is vehicle intelligent information system starting up's time diagram that the embodiment of the present invention provides；
First time diagram when Fig. 9 is the vehicle intelligent information system shutdown of embodiment of the present invention offer；
Second time diagram when Figure 10 is the vehicle intelligent information system shutdown of embodiment of the present invention offer；
3rd time diagram when Figure 11 is the vehicle intelligent information system shutdown of embodiment of the present invention offer；
Figure 12 is the vehicle intelligent information system that provides of embodiment of the present invention sequencing contro schematic diagram when waking up up.
Wherein, 1, voltage-regulating circuit；10, car entertainment controls processor；2, multiple functional units are fitted
Join region；20, audiovisual presentation processor；21, the first functional unit adaptive area；22, the second function
Unit adaptive area；23, the 3rd functional unit adaptive area；30, processor is remotely controlled；100, first
Power supply chip；200, second source chip.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, with
Lower combination drawings and Examples, are further elaborated to the present invention.Should be appreciated that described herein
Specific embodiment only in order to explain the present invention, be not intended to limit the present invention.
Refer to shown in Fig. 1, the circuit of a kind of vehicle intelligent information system, described circuit is provided with voltage and adjusts
Whole circuit 1 and multiple functional unit adaptive area 2；Wherein,
One end of described voltage-regulating circuit 1 is connected with vehicle power, the other end and the plurality of functional unit
Adaptive area connects, and described voltage-regulating circuit 1 is for being adjusted the voltage of vehicle power, and exports
Multiple voltages are to functional unit adaptive area corresponding in the plurality of functional unit adaptive area 2；
Described functional unit adaptive area is for arranging the functional unit of described vehicle intelligent information system, each
Described functional unit adaptive area is configured with corresponding adaptive electricity according to the power input requirements of described functional unit
Pressure, the voltage of described voltage-regulating circuit output to corresponding described functional unit adaptive area is according to described suitable
Join Voltage Cortrol.
The circuit of the vehicle intelligent information system that the present invention provides, carries out voltage tune including for ` to vehicle power
Whole voltage-regulating circuit, and the multiple functional unit adaptive areas for place function unit, Mei Gegong
Can be configured with corresponding adaptive voltage by unit adaptive area, described adaptive voltage is defeated according to the power of functional unit
Enter requirement configuration；Have corresponding with each functional unit in vehicle intelligent information system on the most described circuit
Functional unit adaptive area, when functional unit layout, can input the function that size is identical or close by power
The whole power supply of vehicle intelligent information system, in same functional unit adaptive area, is so easy in cell layout
The design of system and management, it is achieved the stable of vehicle intelligent information system quickly runs.
Refer to shown in Fig. 2, it is based on car entertainment control that the hardware of described vehicle intelligent information system is built
Processor 10, audiovisual presentation processor 20 and long-range control processor 30.Wherein, described car entertainment
The operating system controlling processor 10 operation is android system, is used for processing non real-time nature car entertainment letter
Breath；The operating system that described audiovisual presentation processor 20 runs is ITRON system, is used for processing in real time
Property audio-video signal and Figure and Image；The operating system that described long-range control processor 30 runs is
OsCAN system, for the CAN(Controller Area Network that will read according to the instruction received, control
Device LAN processed) after message information processes and encode, it is sent to remote terminal by wireless communication module.
As specific embodiment, described car entertainment controls processor 10 and selects model to be IMX53 series
Chip, the chip that described audiovisual presentation processor 20 selects model to be SH7269, at described long-range control
The chip that reason device 30 selects model to be MPC5606.
Meanwhile, control at processor 10, audiovisual presentation processor 20 and long-range control in described car entertainment
The surrounding of reason device 30 is provided with some other functional unit.Specifically, control including with described car entertainment
The DDR3(Double Data Rate that processor 10 connects, Double Data Rate synchronous DRAM) aobvious
Memory cell, SD(Secure Digital Memory Card, safe digital card) card unit, EMMC(Embedded
MultiMediaCard, in-line memory) memory cell, USB(Universal Serial BUS, logical
With universal serial bus) functional unit such as interface unit and gyroscope；It is connected with described audiovisual presentation processor 20
Audio unit, such as FMAM module (FM/AM) unit, audio interface (AUX IN) unit,
Mike (MIC) unit, DVD(Digital Versatile Disc, digital versatile disc) unit, electricity
Source control (PMU) unit, audio frequency power amplifier (PA) unit, shuttle unit, keyboard (Keyboard) are single
The audio-frequency function unit such as first and various controls, the video unit being connected with described audiovisual presentation processor 20,
Such as photographic head (Camera) unit, liquid crystal display (LCD) unit, mobile TV (CMMB)
Unit, after pad crystal display (Rear LCD) unit, touch screen (Touch) unit, player (IPod)
The video capability unit such as unit and external audio frequency and video input (RSE/RVC) unit；At described long-range control
Controller local area network (CAN) unit of reason device 30 connection, main control unit (MCU), global positioning system
(GPS) unit, power controller LAN (PCAN) unit, car body controller LAN (BCAN)
The functional units such as unit and 3G unit.The circuit board that the present invention provides is to do electricity based on aforesaid system framework
The design of origin system and management；Certainly, it should be apparent to a person skilled in the art that described vehicle intelligent is believed
Functional unit in breath system is not limited thereto, and those skilled in the art is on the basis of aforementioned functional unit
On, can also increase and decrease the most accordingly or replace as required, believe with satisfied actual vehicle intelligent
The demand of breath system.
Refer to shown in Fig. 1, as specific embodiment, the plurality of functional unit adaptive area 2 includes:
First functional unit adaptive area 21, its adaptive voltage is 5 volts；Second functional unit adaptive area 22, its
Adaptive voltage is 3.3 volts；3rd functional unit adaptive area 23, its adaptive voltage is 1.8 volts.Specifically,
Including multiple functional unit in described vehicle intelligent information system, the running voltage of each functional unit is not all
Just the same, for the ease of effectively managing the power supply of whole vehicle intelligent information system, beneficially system is steady
Fixed operation, partial function unit has been done detailed power management design by the present embodiment.Specifically according to function list
Unit's power input is identical or close to arranging in pairs or groups, by functional unit identical or close for all power input size
Layout, in same functional unit adaptive area, is so conducive to design and the management of power-supply system.As
A kind of embodiment, described functional unit adaptive area 2 includes the first functional unit adaptive area 21, second
Functional unit adaptive area 22 and the 3rd functional unit adaptive area 23.Wherein, the first functional unit adaptation district
The adaptive voltage in territory 21 is 5 volts, and on this functional unit adaptive area, layout has functional unit, specifically for cloth
Office such as usb interface unit, rearmounted LCD unit, backlight (LED) unit, port drive
(BOTTON) unit, controller local area network (CAN) unit, global positioning system (GPS) unit
With functional units that running voltage is 5 volts such as at least one in 3G unit；Second functional unit adaptive area
The adaptive voltage of 22 is 3.3 volts, and on this functional unit adaptive area, layout has functional unit, specifically for cloth
Office such as LCD unit, touch screen unit, EMMC memory cell, SD card unit, switching are opened
The works such as at least one in pass (SWITCH) unit, DVD unit, audio frequency panel unit and main control unit
As the functional unit that voltage is 3.3 volts；The adaptive voltage of the 3rd functional unit adaptive area 23 is 1.8 volts,
On this functional unit adaptive area, layout has functional unit, specifically for layout such as DDR3 video memory unit and
The functional units that running voltage is 1.8 volts such as at least one in TV (TV) unit.
On the basis of aforementioned specific functional units adaptive area and functional unit Layout Embodiment, this area
Technical staff it should be understood that the type of described functional unit adaptive area is not limited thereto, it is also possible to according to
The real work voltage of functional unit configures, and i.e. can also include other functional unit adaptive areas, example
As adaptive voltage be 8.3 volts, for arranging the functional unit adaptive area of FMAM module group unit；Adaptive electricity
Pressure is 2.6 volts, for arranging the functional unit adaptive area etc. of gyro unit.
As specific embodiment, in order to ensure that the power supply of each functional unit is all clean and stable, by electricity
On road, numeral wiring and the analog wire laying of each power supply cabling are divided among different wiring layers, numeral wiring and mould
Intend not concurrent ground connection.Specifically, the power supply of output extremely each described functional unit adaptive area on described circuit
Cabling includes numeral wiring and analog wire laying, and described numeral wiring and analog wire laying are divided among different wirings
Layer, and numeral wiring and each node not concurrent ground connection of analog wire laying, so can ensure that each function
The power supply of unit the most mutually will not be interfered；Every part of the most described numeral wiring and analog wire laying is all
Different networks, different node ground connection, so can ensure that every a part of experienced interference is minimum.
As specific embodiment, on described circuit, the wiring width of main power source part is 10-30 mil (mil).
Specifically, in described vehicle intelligent system, the cabling of main power source part is related to whole vehicle intelligent information
The stable operation of system, therefore its typesetting connects up the particular importance that seems.But, this industry there is presently no
One unified line width standard, each producer is different for typesetting and the wiring width of main power source part.
The wiring of main power source part on described circuit by analysis, is reserved enough width by the present inventor,
Its live width is specifically arranged to 10-30mil, is particularly conducive to the stable operation of whole vehicle intelligent information system.Excellent
Selection of land, the present inventor, through repeatedly testing and emulating, show that the wiring width of main power source part is
12mil is this system framework of Fig. 2 of the present invention optimal live width of collocation.
As specific embodiment, on described circuit, the functional unit of high-power power consumption is near described vehicle power cloth
Office.Specifically, when described functional unit is in the layout of on corresponding functional unit adaptive area, described function list
The functional unit power consumption of high-power power consumption in unit is relatively big, is easily caused the electric current on corresponding cabling big and cause and send out
Heat；Therefore, in order to reduce the heating on corresponding cabling, keep the heating on every cabling to balance, this enforcement
The functional unit of high-power power consumption is preferably arranged by example as far as possible near described vehicle power, for EMI(Electro
Magnetic Interference, electromagnetic interference), EMC(Electro Magnetic Compatibility, electromagnetism
Compatible) etc. reserved enough redundant spaces, the functional unit cabling that so can avoid big electric current long and
Produce the interference such as some EMI and EMC, it is ensured that the rational deployment of each functional unit power supply.
As specific embodiment, described voltage-regulating circuit includes: lc circuit, for by described vehicle power
Voltage be filtered process, i.e. choose required frequency component, filter unwanted frequency component；Power supply
Modular circuit, for carrying out blood pressure lowering process by filtered voltage；Power protecting circuit, for by after blood pressure lowering
Voltage carry out power protection process after, export multiple voltage to corresponding functional unit adaptive area.As
Embodiment, the voltage of described vehicle power is 12 volts, and the voltage of 12 volts is carried out frequency-selecting of vibrating by lc circuit
Network processes；Voltage after vibration frequency-selective network is carried out blood pressure lowering process by described power module circuitry, obtains 5
Volt, 3.3 volts, other various required voltages such as 1.8 volts；Voltage after blood pressure lowering is carried out by power protecting circuit
Except noise processed, then in output extremely described functional unit adaptive area, in order in vehicle intelligent information system
Each corresponding functional unit uses.Wherein, described power module circuitry can select type according to blood pressure lowering size
It number it is the chip of TPS54260, TPS62290, TPS76501, TPS74701.
As specific embodiment, described power protecting circuit is for carrying out at power protection the voltage after blood pressure lowering
Reason, to realize effective protection of power supply, it is ensured that output is to corresponding function unit in vehicle intelligent information system
Power good, without interruption, such as, is carried out except noise processed etc. the voltage after blood pressure lowering.Specifically, described
Power protecting circuit, for being input to corresponding function unit in vehicle intelligent information system, the most vehicle-mounted joy
Happy control that processor 10 uses 12 volts, 2 amperes of level power supplies carry out exporting interference protection.Implement as one
Mode, the circuit of described power protecting circuit is shown in Figure 3, specifically includes: model is TPS54260
The first power supply chip 100, pin PVIN1～PVIN4 of described first power supply chip connects and forms a joint
Point MAIN3V8；One end of the pin VIN and resistance R217 of the first power supply chip is connected, pin
VIN_LD34 is connected with one end of resistance R215, and pin VIN_LD02 is connected with one end of resistance R211,
The other end of resistance R217, R215 and R211 connects node MAIN3V8；Electric capacity C183-C188 is in parallel
Rear one end ground connection, the other end is connected to node M AIN3V8；One end of electric capacity C199-C213 links together
Rear ground connection, the other end of C199-C201 is connected to chip pin VIN_LD34, the other end of C202-C204
Being connected to chip pin VIN_LD02, the other end of C205-C212 is connected to node M AIN3V8；C213
The other end be connected to chip pin VIN.Use the power protecting circuit of aforementioned structure, can be to vehicle-mounted intelligence
In energy information system, corresponding function unit such as car entertainment controls the power supply of processor 10 power supply front end input stage
Enter protection, it is ensured that input is stable, the noise produced without electromagnetic interference, it is achieved except noise processed.
As specific embodiment, in order to ensure that lc circuit output is reliable to the voltage of power module circuitry, described
Voltage-regulating circuit 1 also includes overvoltage crowbar (OVP), and described overvoltage crowbar is for by filtering
Voltage after reason carries out overvoltage protection, and then output is to described power module circuitry；Its concrete overvoltage protection
The chip that circuit can select model to be LM5060 realizes.
As specific embodiment, in order to ensure to supply the voltage stabilization of described functional unit, described Voltage Cortrol
Circuit 1 also includes mu balanced circuit, and described mu balanced circuit is for carrying out voltage stabilizing by the voltage after power protection, so
The multiple voltage of rear output is to corresponding functional unit adaptive area；Its concrete mu balanced circuit can use ability
The custom circuit in territory or chip realize, and such as model is the chip of LTC3589.
It is as specific embodiment, less in order to ensure the power-supply ripple exported in vehicle intelligent information system,
Power supply is clean, provides concrete power module circuitry in the present embodiment.Specifically, described power module electricity
Road includes: the first power module circuitry, for distribution 0.85～1.1 volt, 2 amperes and 1.3 volts, 1 ampere of level
Power supply；Second source modular circuit, for distribution 1.3 volts, 0.25 ampere and 2.5 volts, 1 ampere of level power supply.
Described first power module circuitry and second source modular circuit are specifically for using in vehicle intelligent information system
To power supply be allocated or sub-module is powered, use described first power module circuitry and second source module
Circuit, it is possible to achieve the modularization management of vehicle intelligent information system power supply, it is possible to remove the debugging of complication from
And modeling, for the module management of hardware and software platform with call.
As embodiment, the circuit of described first power module circuitry refers to shown in Fig. 4 and Fig. 5, specifically
Including the second source chip 200 that model is TPS74701, the pin of described second source chip
VDDGP_1～VDDGP_15 connects one node VDDGP of formation；Electric capacity C214～C220 is in parallel, and
One end after connection is connected with node VDDGP, other end ground connection；Electric capacity C221～C225 is in parallel, after parallel connection
One end be connected with node VDDGP, other end ground connection；Described node VDDGP and vehicle intelligent information system
Unit interface corresponding in system connects, such as, control the VBUCKCORE of processor 10 with described car entertainment
Interface connects, and provides 0.85～1.1 volt, the power supply of 2 amperes for it.Meanwhile, the drawing of described second source chip
Foot VCC_1～VCC_33 connects one node VCC_1V3 of formation；Electric capacity C226～C233 is in parallel, in parallel
After one end be connected with node VCC_1V3, other end ground connection；Electric capacity C234～C241 is in parallel, after parallel connection
One end be connected with node VCC_1V3, other end ground connection；Described node VCC_1V3 believes with vehicle intelligent
Unit interface corresponding in breath system connects, such as, control processor 10 with described car entertainment
VBUCKPRO interface connects, and provides 1.3 volts, the power supply of 1 ampere for it.
As embodiment, the circuit of described second source modular circuit is shown in Figure 5, specifically includes type
Number being the power supply chip of TPS62290, pin VDDA_1～VDDA_4 of described power supply chip connects and is formed
One node VDDA_1V3；Electric capacity C242～C246 is in parallel, the one end after parallel connection and node VDDA_1V3
Connect, other end ground connection；Electric capacity C262～C263 is in parallel, the one end after parallel connection and node VDDA_1V3
Connect, other end ground connection, and the VDDAL1 of described power supply chip is connected with node VDDA_1V3；Institute
State unit interface corresponding with vehicle intelligent information system for node VDDA_1V3 to connect, such as with described car
Carry amusement to control the VLDO10_1V3 interface of processor 10 and connect, provide 1.3 volts, 0.25 ampere for it
Power supply.Meanwhile, electric capacity C264～C265 is in parallel, and the one end after parallel connection is connected with node VDD_REG_2V5,
Other end ground connection, and the VDD_REG of described power supply chip is connected with node VDD_REG_2V5；Described
Unit interface corresponding with vehicle intelligent information system for node VDD_REG_2V5 connects, such as with vehicle-mounted
Amusement controls the VBUCKPERI interface of processor 10 and connects, and provides 2.5 volts, the power supply of 1 ampere for it.
Certainly, it should be apparent to a person skilled in the art that described first power module circuitry and second source module electricity
Road be not limited to car entertainment control processor 10 be connected, it is also possible to in vehicle intelligent information system its
It needs the functional unit of this power supply to connect, such as audiovisual presentation processor 20 and other functional unit.
The power supply stable further for ensureing vehicle intelligent information system, the present invention is also to described hardware system
The electrifying timing sequence of framework has entered control, it is ensured that the electrifying timing sequence of all parts necessarily puts in place.The concrete mistake powered on
Journey is as follows:
Power on firstly the need of starting vehicle intelligent information system, specially connect and will ensure ACC ON onboard,
Described ACC ON represents that on automobile, battery is in work power supply state.
Next includes that the access part of CAN at least to ensure to open, and ensures remotely to control processor simultaneously
30 chip those parts of such as MPC5606 selected are in often electricity supply, with can after ensureing system dormancy
Wake up 3G module up.
The logic circuit that hardware controls part is detailed refer to shown in Fig. 6, in this figure, the most clearly mark and
Defining which signal each hardware interface needs to connect, concrete logic control will be in follow-up start and pass
Carefully state during the sequencing contro of machine.
In the vehicle intelligent information system that the present invention provides, each duty will be through series of steps
Going to control the function of next duty, this power supply status that will relate to whole system migrates, and this is
Detailed power supply status migration step of uniting is shown in Figure 7.In the drawings, each arrow be foremost at the beginning of
Beginning duty, end is that the power cut-off state of present event, the only duty of initiating terminal are the most just entered
Enter to end, next duty could be started.Wherein, illustrating of described Fig. 7 see table 1.
Table 1:
As specific embodiment, during in order to ensure system boot and shutdown, each functional unit or hardware is upper
Electricity sequential necessarily puts in place, and the circuit of the vehicle intelligent information system that the present invention provides is additionally provided with:
Start control module, controls each functional unit when vehicle intelligent information system starting up
Electricity sequential；
Shutdown control module, for going of vehicle intelligent information system shutdown each functional unit of startup control system
Electricity sequential.
Specifically, system boot starts sequential as shown in Figure 8, refer to Fig. 6 and Fig. 7 simultaneously.Described start
Control module specifically includes: battery power on-unit, and for being connected by battery power, power supply B+ reaches work
After making voltage range, chip MPC5606 powers on, and opens CAN power supply, complete machine in 200～400 milliseconds
Enter holding state；Enter Ready1 unit, be used for entering Ready1 state (backlight OFF state),
ACC shelves got to by key, and power supply BAT1 is energized, or when CAN/3G/GPS wake-up signal occurs, SH7269
Being set high by MAIN_POW_EN pin, power supply BAT1 is energized；Electric unit in chip I MX53, is used for
Being set high by SYS_POW_EN pin, power supply BAT2 is energized, and chip I MX53 powers on；IMX53_STATUS
Set high unit, for chip I MX53 status pin IMX53_STATUS being set high；Enter Ready2 mono-
Unit, for by AUDIO(sound equipment) the main button of panel presses, and chip SH7269 starts front panel power supply,
Including LCD(liquid crystal display) backlight electric power (LED) and touch screen power supply, enter Ready2(backlight
Lamp ON state).So far, complete whole vehicle intelligent information system starting up and corresponding function unit time
Sequence controls.
System closedown part includes preamble section when three, it is necessary to order just can complete to shut down accordingly successively.
Specifically, described shutdown control module includes the first shutdown control module, the second shutdown control module and the 3rd
Shutdown control module.Described first shutdown control module sequential for start standby signal (ready is standby),
Backlight OFF signal starts (backlight closes ready), and time concrete, preamble section is as shown in Figure 9, refer to simultaneously
Fig. 6 and Fig. 7.Described first shutdown control module specifically includes: panel main power source control unit, for AUDIO
Panel main power source key is short when pressing, and chip SH7269 closes front panel power supply, and LCD backlight extinguishes, and enters
Ready1 state (backlight OFF state)；If in 30 second time, main power source key is pressed again, then chip
SH7269 opens front panel power supply, and LCD backlight is lighted, and enters Ready2(backlight ON state)；As
Really AUDIO panel main power source bond distance presses 7 seconds, and complete machine is directly entered standby mode；Chip I MX53 data
Memory element, is stored in internal storage data for chip I MX53, enters resting state；Chip SH7269 dormancy
Unit, enters resting state for chip SH7269；Chip SH7269 wakeup unit, for by main power source
Key is pressed, and chip SH7269 wakes up up, lights LCD backlight；Chip I MX53 wakeup unit, for by core
Sheet IMX53 wakes up up, reads internal storage data.
The sequential of described second shutdown control module is for starting off signal (ready shutdown), backlight pass letter
Number standby (backlight closes standby), time concrete, preamble section is as shown in Figure 10, refer to Fig. 6 and Fig. 7 simultaneously.
Described second shutdown control module specifically includes: standby mode control unit, reaches OFF shelves for key,
AVN(audio entertainment module) duty can be kept 30 seconds, period such as detects BAT supply voltage mistake
Low, AVN is directly entered standby mode；Backlight electric power closing unit, for as normal in BAT supply voltage,
And without outside any button operation, then enter Ready1(backlight OFF state), close chip I MX53
Peripheral devices, closes backlight electric power；Chip I MX53 power-off unit, is used for setting low IMX53_STATUS
Pin, after the closedown of chip I MX53 is ready, closes chip I MX53 power supply；Chip SH7269 power supply
Closing unit, is used for setting low 7269_SPC56_WDTOVFn pin, after chip SH7269 closedown is ready,
Closing chip SH7269 power supply, complete machine enters standby mode.
The sequential of described 3rd shutdown control module is the shutdown of low electricity, and time concrete, preamble section is as shown in Figure 11,
Refer to Fig. 6 and Fig. 7 simultaneously.Described 3rd shutdown control module specifically includes: BAT voltage detection unit,
Extremely low voltage power supply model is dropped to by digital-to-analogue conversion port (AD) detection BAT voltage for chip MPC5606
Enclose；Chip I MX53 dormancy unit, is used for setting low IMX53_STATUS pin, and chip I MX53 enters
Park mode；Chip I MX53 power-off unit, is used for detecting BAT power supply, if do not recovered normal voltage
Working range, closes chip I MX53 power supply；AVN power-off unit, is used for detecting BAT electricity
Source, if do not recovered normal voltage operation scope, closes AVN power supply；Chip MPC5606 dormancy list
Unit, detects BAT source program low-voltage for chip MPC5606, and chip MPC5606 proceeds to the degree of depth and stops
Sleep.So far, complete the shutdown of vehicle intelligent information system to start and the sequencing contro of corresponding function unit.
As preferred embodiment, in order to ensure that system does not the most work entrance deep sleep state, as wanted
Job demand is by control requirement during system wake-up, on the circuit of the vehicle intelligent information system that the present invention provides
It is additionally provided with and wakes up control module up, when vehicle intelligent information system is waken up, control each functional unit
Electricity sequential.Specifically, described in, preamble section as shown in Figure 12, refer to simultaneously when waking up control module concrete up
Fig. 6 and Fig. 7, described in wake up control module up and specifically include: chip MPC5606 wakeup unit, for by GPS,
The external wake signal that 3G or CAN send, flip chip MPC5606 wakes up up from park mode；
Electric unit on chip SH7269, sets high MAIN_POW_EN pin, chip for chip MPC5606
SH7269 powers on；Electric unit in chip I MX53, extends out IC for chip MPC5606 and sets high
SYS_POW_EN pin, chip I MX53 powers on；Confirmation unit, is used for confirming that chip I MX53 powers on
Complete；Panel wakeup unit, presses for panel master switch, and LCD backlight powers on, front panel power supply electrifying.
So far, waking up up and the sequencing contro of corresponding function unit of whole vehicle intelligent information system is completed.
The present invention also provides for the control method of a kind of vehicle intelligent information system, described vehicle intelligent information system
Circuit as it was previously stated, layout has car entertainment control to process respectively on the plurality of functional unit adaptive area
Device 10, audiovisual presentation processor 20 and long-range control processor 30, described control method includes start control
Step processed and shutdown rate-determining steps；Wherein,
Described start rate-determining steps order includes: connect vehicle power, the of described voltage-regulating circuit output
One power supply remotely controls processor after reaching operating voltage range and powers on；Key gets to ACC shelves, described voltage
Adjusting the second source energising of circuit output, described audiovisual presentation processor powers on；Described audiovisual presentation
The pin controlling the 3rd power supply energising of described voltage-regulating circuit output is set high by processor, described 3rd electricity
Source is energized, and described car entertainment controls processor and powers on；Described car entertainment controls the status pin of processor
Set high；The main button of sound equipment panel is pressed, and the startup of described audiovisual presentation processor includes backlight electric power and touch
The front panel power supply of screen power supply, system entry of backlight lamp open state；Time concrete, preamble section is as shown in Figure 8, with
In time, refer to shown in Fig. 6 and Fig. 7, specifically, is connected by vehicle power, and described voltage-regulating circuit exports
The first power supply B+ reach operating voltage range after remotely control processor and power on, open in 200～400 milliseconds
CAN power supply, complete machine enters holding state；Entry of backlight lamp off status (Ready1 state), key
Get to ACC shelves, the second source BAT1 energising of described voltage-regulating circuit output, or CAN/3G/GPS
When wake-up signal occurs, MAIN_POW_EN pin is set high by described audiovisual presentation processor, described electricity
Pressure adjusts the second source BAT1 energising of circuit output, and described audiovisual presentation processor powers on；Described sound regards
Frequently image processor will control the SYS_POW_EN of the 3rd power supply BAT2 of described voltage-regulating circuit output
Pin sets high, and described 3rd power supply BAT2 energising, described car entertainment controls processor and powers on；Described vehicle-mounted
Amusement controls processor and its status pin IMX53_STATUS is set high；By AUDIO(sound equipment) panel
Main button is pressed, and described audiovisual presentation processor includes LCD(liquid crystal display) backlight electric power and touch
The front panel power supply of screen power supply, system entry of backlight lamp open state (Ready2 state), so far, complete whole
Vehicle intelligent information system starting up and the sequencing contro of corresponding function unit.
Described shutdown rate-determining steps order includes: the described main button of sound equipment panel is short to be pressed, described audio frequency and video figure
As processor cuts out front panel power supply, backlight is extinguished, system entry of backlight lamp off status；Described car entertainment
The status pin controlling processor sets low, and described car entertainment controls processor and closes ready, closes described car
Carry the 3rd power supply of voltage-regulating circuit output described in the power supply of amusement control processor；Described audio frequency and video
Its status pin is set low by image processor, and described audiovisual presentation processor cuts out ready, closes described sound
The second source of voltage-regulating circuit output described in the power supply of video image processor, system enters standby
Pattern；The first source program that described car entertainment controls processor detection described voltage-regulating circuit output is low
Voltage, described car entertainment controls processor and proceeds to deep power down mode；Specifically, described shutdown controls step
Suddenly include the first shutdown rate-determining steps, second shutdown rate-determining steps and the 3rd shutdown rate-determining steps, described first
The sequential of shutdown rate-determining steps is for starting standby signal (ready is standby), backlight OFF signal startup (backlight
Lamp closes ready), time concrete, preamble section is as shown in Figure 9, refer to Fig. 6 and Fig. 7 simultaneously, and described first closes
Machine rate-determining steps specifically includes: time under the main button of sound equipment panel is short, before the closedown of described sound visible image processor
Plate power supply, LCD backlight extinguishes, entry of backlight lamp off status；If main button is pressed again in 30 second time,
Front panel power supply then opened by described sound visible image processor, and LCD backlight is lighted, entry of backlight lamp open state；
If sound equipment panel master is by bond distance by 7 seconds, machine system is directly entered standby mode；
The sequential of described second shutdown rate-determining steps is for starting off signal (ready shutdown), backlight pass letter
Number standby (backlight closes standby), time concrete, preamble section is as shown in Figure 10, refer to Fig. 6 and Fig. 7 simultaneously,
Described second shutdown rate-determining steps specifically includes: key reaches OFF shelves, AVN(audio entertainment module) can
Keeping duty 30 seconds, period such as detects vehicle power BAT brownout, and AVN is directly entered and treats
Machine pattern；As vehicle power BAT voltage is normal, and without outside any button operation, then entry of backlight lamp closes
State, closes described car entertainment and controls processor peripheral devices, close backlight electric power；Described car entertainment
Controlling processor to be set low by its status pin IMX53_STATUS pin, described car entertainment controls processor
Close ready, close described car entertainment and control the of voltage-regulating circuit output described in processor power supply
Three power supply BAT2；Its 7269_SPC56_WDTOVFn status pin is set low by described sound visible image processor,
Described sound visible image processor cuts out ready, closes voltage described in described sound visible image processor power supply and adjusts
The second source BAT1 of whole circuit output, complete machine enters standby mode；
The sequential of described 3rd shutdown rate-determining steps is the shutdown of low electricity, and time concrete, preamble section is as shown in Figure 11,
Refer to Fig. 6 and Fig. 7, described 3rd shutdown rate-determining steps specifically includes: described long-range control processor simultaneously
Extremely low voltage power supply scope is dropped to by digital-to-analogue conversion port (AD) detection vehicle power BAT voltage；Detection car
Carry power supply BAT, if do not recovered normal voltage operation scope, close described car entertainment control processor and power
Power supply and AVN power supply；Described long-range control processor detection vehicle power BAT program low-voltage,
Described long-range control processor proceeds to deep power down mode, so far, completes the shutdown of vehicle intelligent information system and opens
The dynamic sequencing contro with corresponding function unit.
The vehicle intelligent information system control method using the present invention to provide, can be effectively ensured vehicle intelligent letter
Breath system is when startup and shutdown, and each functional unit of system or the electrifying timing sequence of hardware necessarily put in place, from
And it is capable of the stable power-supplying of system.
As concrete enforcement row, described control method also includes waking up rate-determining steps up, described in wake up control step up
Rapid order includes: GPS, 3G, CAN send external wake signal, triggers described long-range control and processes
Device wakes up up from park mode；Described long-range control processor will control the of described voltage-regulating circuit output
The pin of two power supply energisings sets high, and described second source is energized, and described audiovisual presentation processor powers on；Institute
The pin stating the 3rd power supply energising remotely controlling processor by controlling the output of described voltage-regulating circuit sets high,
Described 3rd power supply energising, described car entertainment controls processor and powers on；The main button of sound equipment panel is pressed, the back of the body
Photoelectric source powers on, front panel power supply electrifying, system entry of backlight lamp open state；Time concrete, preamble section is shown in Figure 12
Shown in, refer to Fig. 6 and Fig. 7 simultaneously, described in wake up rate-determining steps up and specifically include: by GPS, 3G or CAN
Bus sends external wake signal, triggers described long-range control processor and wakes up up from park mode；Described far
Process control processor will control the pin of the second source BAT1 energising of described voltage-regulating circuit output
MAIN_POW_EN sets high, and described audiovisual presentation processor powers on；Described long-range control processor extends out
The pin SYS_POW_EN controlling the 3rd power supply BAT2 of described voltage-regulating circuit output is set high by IC,
Described car entertainment controls processor and powers on；Described car entertainment controls processor and powers on complete, and panel master open
Pass is pressed, and LCD backlight powers on, front panel power supply electrifying, so far, completes whole vehicle intelligent information system
Wake up up and the sequencing contro of corresponding function unit.Use and this enforcement wake up rate-determining steps up, it is ensured that
System does not the most work when entering deep sleep state, can be by system wake-up according to job demand, again
Start working.
As specific embodiment, described amusement controls the core that processor 10 selects model to be IMX53 series
Sheet, the chip that described audiovisual presentation processor 20 selects model to be SH7269, described long-range control processes
The chip that device 30 selects model to be MPC5606.In the present embodiment, selected chip is that industry is up-to-date,
This collocation be also the present inventor through rigid authentication, and like product SMIS before can overcoming
Sheet routine processes is complicated, and the defect not separated the part that automobile product information real-time is high is effectively protected
Demonstrate,prove the stability that whole system is run.Certainly, those of ordinary skill in the art are according to foregoing description, it is possible to
To use other similar chips, illustrate the most one by one at this.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (11)
1. the circuit of a vehicle intelligent information system, it is characterised in that described circuit is provided with Voltage Cortrol
Circuit and multiple functional unit adaptive area；Wherein,
One end of described voltage-regulating circuit is connected with vehicle power, and the other end is fitted with the plurality of functional unit
Joining region to connect, described voltage-regulating circuit is for being adjusted the voltage of vehicle power, and exports multiple
Voltage is to functional unit adaptive area corresponding in the plurality of functional unit adaptive area；
Described functional unit adaptive area is for arranging the functional unit of described vehicle intelligent information system, each
Described functional unit adaptive area is configured with corresponding adaptive electricity according to the power input requirements of described functional unit
Pressure, the voltage of described voltage-regulating circuit output to corresponding described functional unit adaptive area is according to described suitable
Join Voltage Cortrol；
It is additionally provided with on the circuit of described vehicle intelligent information system:
Start control module, controls each functional unit when vehicle intelligent information system starting up
Electricity sequential；
Shutdown control module, for going of vehicle intelligent information system shutdown each functional unit of startup control system
Electricity sequential.
The circuit of vehicle intelligent information system the most according to claim 1, it is characterised in that described electricity
Pressure adjusts circuit and includes:
Lc circuit, for being filtered process by the voltage of described vehicle power；
Overvoltage crowbar, for carrying out overvoltage protection by filtered voltage；
Power module circuitry, for carrying out blood pressure lowering process by the voltage after overvoltage protection；
Power protecting circuit, after carrying out power protection process by the voltage after blood pressure lowering；
Mu balanced circuit, for the voltage after power protection is carried out voltage stabilizing, then exports multiple voltage to accordingly
Functional unit adaptive area.
3. the circuit of the vehicle intelligent information system stated according to claim 2, it is characterised in that described power supply mould
Block circuit includes:
First power module circuitry, for distribution 0.85～1.1 volt, 2 amperes and 1.3 volts, 1 ampere of level power supply；
Second source modular circuit, for distribution 1.3 volts, 0.25 ampere and 2.5 volts, 1 ampere of level power supply.
The circuit of vehicle intelligent information system the most according to claim 1, it is characterised in that described many
Individual functional unit adaptive area includes: the first functional unit adaptive area, and its adaptive voltage is 5 volts；Second
Functional unit adaptive area, its adaptive voltage is 3.3 volts；3rd functional unit adaptive area, its adaptive voltage
It it is 1.8 volts.
The circuit of vehicle intelligent information system the most according to claim 4, it is characterised in that
On described first functional unit adaptive area, layout has functional unit, this first functional unit adaptive area
The functional unit of upper layout include usb interface unit, rearmounted LCD unit, LED unit,
At least one in BOTTON unit, CAN unit, GPS unit and 3G unit；
On described second functional unit adaptive area, layout has functional unit, this second functional unit adaptive area
The functional unit of upper layout includes LCD unit, touch screen unit, EMMC memory cell, SD
At least one in card unit, SWITCH unit, DVD unit and main control unit；
On described 3rd functional unit adaptive area, layout has functional unit, the 3rd functional unit adaptive area
The functional unit of upper layout includes at least one in DDR3 video memory unit and TV unit.
6. the circuit of the vehicle intelligent information system stated according to claim 1, it is characterised in that described vehicle-mounted intelligence
On the circuit of energy information system, output includes numeral cloth to the power-supply wiring of each described functional unit adaptive area
Line and analog wire laying, described numeral wiring and analog wire laying are divided among different wiring layers, described numeral wiring
With analog wire laying not concurrent ground connection.
7. the circuit of the vehicle intelligent information system stated according to claim 1, it is characterised in that described vehicle-mounted intelligence
On the circuit of energy information system, the functional unit of high-power power consumption is near described vehicle power layout.
8. according to the circuit of the vehicle intelligent information system described in claim 1, it is characterised in that described vehicle-mounted
It is additionally provided with on the circuit of intelligent information system and wakes up control module up, when vehicle intelligent information system is waken up
Control the electrifying timing sequence of each functional unit.
9. the control method of a vehicle intelligent information system, it is characterised in that described vehicle intelligent information system
The circuit of system is as shown in claim 1, and on the plurality of functional unit adaptive area, layout has vehicle-mounted joy respectively
Pleasure controls processor, audiovisual presentation processor and remotely controls processor, and described control method includes start
Rate-determining steps and shutdown rate-determining steps；Wherein,
Described start rate-determining steps order includes: connect vehicle power, the of described voltage-regulating circuit output
One power supply remotely controls processor after reaching operating voltage range and powers on；When switch for vehicle is in ACC shelves,
The second source energising of described voltage-regulating circuit output, described audiovisual presentation processor powers on；Described sound
The pin controlling the 3rd power supply energising of described voltage-regulating circuit output is set high by video image processor, institute
Stating the 3rd power supply energising, described car entertainment controls processor and powers on；Described car entertainment controls processor
Status pin sets high；When the main button of sound equipment panel is pressed, the startup of described audiovisual presentation processor includes backlight
The front panel power supply of power supply and touch screen power supply, described system entry of backlight lamp open state；
Described shutdown rate-determining steps order includes: the described main button of sound equipment panel is short to be pressed, described audio frequency and video figure
As processor cuts out front panel power supply, backlight is extinguished, described system entry of backlight lamp off status；Described vehicle-mounted
Amusement controls the status pin of processor and sets low, and described car entertainment controls processor and closes ready, closes institute
State the 3rd power supply of voltage-regulating circuit output described in the power supply of car entertainment control processor；Described sound
Status pin is set low by video image processor, and described audiovisual presentation processor cuts out ready, closes described
The second source of voltage-regulating circuit output described in the power supply of audiovisual presentation processor, described system is entered
Enter standby mode；Described long-range control processor detects the first source program low-voltage, at described long-range control
Reason device proceeds to deep power down mode.
The control method of vehicle intelligent information system the most according to claim 9, it is characterised in that
Described control method also includes waking up rate-determining steps up, described in wake up up rate-determining steps order include: GPS, 3G, CAN
Bus sends external wake signal, triggers described long-range control processor and wakes up up from park mode；Described far
The pin controlling the energising of described second source is set high by process control processor, and described second source is energized, described
Audiovisual presentation processor powers on；Described long-range control processor will control the pin of described 3rd power supply energising
Setting high, described 3rd power supply energising, described car entertainment controls processor and powers on；Described sound equipment panel master presses
Key is pressed, and described backlight electric power powers on, described front panel power supply electrifying, and shape opened by described system entry of backlight lamp
State.
11. according to the control method of the vehicle intelligent information system described in claim 9 or 10, and its feature exists
In, described car entertainment controls the chip that processor selects model to be IMX53 series, described audiovisual presentation
Processor selects model to be the chip of SH7269, and described long-range control processor selects model to be MPC5606
Chip.
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| CN105599706B (en) * | 2015-12-22 | 2018-09-07 | 深圳市智行畅联科技有限公司 | A kind of standby management method and system of intelligent vehicle-carried information entertainment |
| CN105590036B (en) * | 2016-03-22 | 2019-04-16 | 广州分享车联网科技有限公司 | A kind of automobile batteries management method, system and device |
| CN108108195B (en) * | 2017-12-29 | 2021-07-13 | 北京奇宝科技有限公司 | Control method and device of intelligent equipment and computer readable storage medium |
| CN114967552A (en) * | 2022-05-25 | 2022-08-30 | 重庆长安汽车股份有限公司 | Vehicle operation system and method for balancing power consumption and performance |
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