CN203211228U - Circuit for vehicle-mounted intelligent information system - Google Patents
Circuit for vehicle-mounted intelligent information system Download PDFInfo
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- CN203211228U CN203211228U CN 201320114163 CN201320114163U CN203211228U CN 203211228 U CN203211228 U CN 203211228U CN 201320114163 CN201320114163 CN 201320114163 CN 201320114163 U CN201320114163 U CN 201320114163U CN 203211228 U CN203211228 U CN 203211228U
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Abstract
The utility model provides a circuit for a vehicle-mounted intelligent information system. A voltage adjusting circuit and a plurality of function unit adaptive regions are arranged on the circuit; one end of the voltage adjusting circuit is connected with a vehicle-mounted power source, the other end of the voltage adjusting circuit is connected with the plurality of function unit adaptive regions, and the voltage adjusting circuit is used for adjusting a voltage of the vehicle-mounted power source and outputting a plurality of voltages to the corresponding function unit adaptive regions; the function unit adaptive regions are used for setting function units of the vehicle-mounted intelligent information system, each function unit adaptive region is provided with a corresponding adaptive voltage according to the power input requirement of the function units, and the voltage which is outputted to the corresponding function unit adaptive region by the voltage adjusting circuit is adjusted according to the adaptive voltage. According to the circuit provided by the utility model, all the function units with the same power input magnitude are distributed in the same function unit adaptive region, so that the power source design and management of the whole vehicle-mounted intelligent information system can be conveniently carried out.
Description
Technical field
The utility model relates to automotive field, relates in particular to a kind of circuit of vehicle intelligent information system.
Background technology
Along with the raising of people's living standard and the develop rapidly of communicating by letter, people have not just satisfied the requirement of simply riding instead of walk to automobile, but need can share the contents such as some good services in mutual, the remote monitor and control of some Infotainments, information of vehicles and diagnosis, 4S shop under the situation of safety.Therefore, under such background, produced Telematics(vehicle intelligent information system) professional demand.The vehicle intelligent information system is the complex of the communication technology and information techenology, with wireless speech or the advanced 3G(3rd-generation of utilization, the 3G (Third Generation) Moblie technology) above network delivery is at line image or voice, provides at any time user in the driving and drives and the required various information of living; Based on gps system, by GPS(GlobalPositioning System, global positioning system) position fixing system and wireless communication networks, to chaufeur, passenger, TSP(Telematics Service Provider, vehicle remote service provider) backstage or Vehicle mounted station provide Internet services such as traffic information, reply emergency situation, remote vehicle diagnostics and financial transaction, news, E-MAIL, online amusement.
At present, each disunity of the hardware system that each producer carries and software system, vehicle power have a lot of unsettled latencies, and the vehicle intelligent information system has special requirement to power unit.Contriver of the present utility model discovers at vehicle intelligent information system and concrete functional unit, not have corresponding power management scheme.Therefore, need a kind of power management policy of vehicle intelligent information system badly.
The utility model content
At vehicle intelligent information system in the background technology and concrete functional unit, do not have the technical matters of respective electrical power management schemes, the utility model provides a kind of management circuit of vehicle intelligent information system.
The purpose of this utility model is achieved through the following technical solutions:
A kind of circuit of vehicle intelligent information system, described circuit are provided with voltage-regulating circuit and a plurality of functional unit adaptive area; Wherein,
One end of described voltage-regulating circuit is connected with vehicle power, the other end is connected with described a plurality of functional unit adaptive areas, described voltage-regulating circuit is used for the voltage of vehicle power is adjusted, and exports a plurality of voltages corresponding functional unit adaptive area to described a plurality of functional unit adaptive areas;
Described functional unit adaptive area is used for arranging the functional unit of described vehicle intelligent information system, each described functional unit adaptive area requires to dispose corresponding adapt voltages according to the power input of described functional unit, and described voltage-regulating circuit exports the voltage of corresponding described functional unit adaptive area to according to described adapt voltages adjustment.
The circuit of the vehicle intelligent information system that the utility model provides, comprise for vehicle power being carried out the voltage-regulating circuit that voltage is adjusted, and a plurality of functional unit adaptive areas that are used for the place function unit, each functional unit adaptive area disposes corresponding adapt voltages, and described adapt voltages requires configuration according to the power input of functional unit; Be to have the functional unit adaptive area corresponding with each functional unit in the vehicle intelligent information system on the described circuit, when the functional unit layout, functional unit layout that can power input size is identical or approaching is in same functional unit adaptive area, be convenient to design and the management of the whole power-supply system of vehicle intelligent information system like this, realize the stable operation fast of vehicle intelligent information system.
Description of drawings
Fig. 1 is the structural representation of the circuit of the vehicle intelligent information system that provides of the utility model embodiment;
Fig. 2 is the framework collocation scheme drawing of the vehicle intelligent information system that provides of the utility model embodiment;
Fig. 3 is the first power module circuitry scheme drawing that the utility model embodiment provides;
Fig. 4 is the second source modular circuit scheme drawing that the utility model embodiment provides;
Fig. 5 is the power protecting circuit scheme drawing that the utility model embodiment provides;
Fig. 6 is the decision circuit scheme drawing that functional unit is partly controlled in the vehicle intelligent information system that provides of the utility model embodiment;
Fig. 7 is the vehicle intelligent information system power supply status migration scheme drawing that the utility model embodiment provides;
Fig. 8 is the vehicle intelligent information system starting up sequential scheme drawing that the utility model embodiment provides;
Fig. 9 is vehicle intelligent information system when shutdown first sequential scheme drawing that the utility model embodiment provides;
Figure 10 is vehicle intelligent information system when shutdown second sequential scheme drawing that the utility model embodiment provides;
Figure 11 is vehicle intelligent information system when shutdown the 3rd sequential scheme drawing that the utility model embodiment provides;
Figure 12 is vehicle intelligent information system that the utility model embodiment the provides time schedule control scheme drawing when waking up.
Wherein, 1, voltage-regulating circuit; 10, car entertainment control treater; 2, a plurality of functional unit adaptive areas; 20, audio frequency and video image processor; 21, the first functional unit adaptive area; 22, the second functional unit adaptive area; 23, the 3rd functional unit adaptive area; 30, Long-distance Control treater; 100, first power supply chip; 200, second source chip.
The specific embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Please refer to shown in Figure 1ly, a kind of circuit of vehicle intelligent information system, described circuit are provided with voltage-regulating circuit 1 and a plurality of functional unit adaptive area 2; Wherein,
One end of described voltage-regulating circuit 1 is connected with vehicle power, the other end is connected with described a plurality of functional unit adaptive areas, described voltage-regulating circuit 1 is used for the voltage of vehicle power is adjusted, and exports a plurality of voltages corresponding functional unit adaptive area to described a plurality of functional unit adaptive areas 2;
Described functional unit adaptive area is used for arranging the functional unit of described vehicle intelligent information system, each described functional unit adaptive area requires to dispose corresponding adapt voltages according to the power input of described functional unit, and described voltage-regulating circuit exports the voltage of corresponding described functional unit adaptive area to according to described adapt voltages adjustment.
The circuit of the vehicle intelligent information system that the utility model provides, comprise for the vehicle power of ` and carry out the voltage-regulating circuit that voltage is adjusted, and a plurality of functional unit adaptive areas that are used for the place function unit, each functional unit adaptive area disposes corresponding adapt voltages, and described adapt voltages requires configuration according to the power input of functional unit; Be to have the functional unit adaptive area corresponding with each functional unit in the vehicle intelligent information system on the described circuit, when the functional unit layout, functional unit layout that can power input size is identical or approaching is in same functional unit adaptive area, be convenient to design and the management of the whole power-supply system of vehicle intelligent information system like this, realize the stable operation fast of vehicle intelligent information system.
Please refer to shown in Figure 2ly, the hardware of described vehicle intelligent information system is built and is based on car entertainment control treater 10, audio frequency and video image processor 20 and Long-distance Control treater 30.Wherein, the operating system of described car entertainment control treater 10 operations is the Android system, for the treatment of non real-time property car entertainment information; The operating system of described audio frequency and video image processor 20 operations is the ITRON system, for the treatment of real-time audio-video signal and Figure and Image; The operating system of described Long-distance Control treater 30 operations is the osCAN system, be used for according to the instruction of receiving the CAN(Controller Area Network that reads, controller local area network) after message information is handled and encoded, sends to remote terminal by wireless communication module.As concrete embodiment, it is the chip of IMX53 series that described car entertainment control treater 10 is selected model for use, and it is the chip of SH7269 that described audio frequency and video image processor 20 is selected model for use, and it is the chip of MPC5606 that described Long-distance Control treater 30 is selected model for use.
Simultaneously, around described car entertainment control treater 10, audio frequency and video image processor 20 and Long-distance Control treater 30, also disposed some other functional unit.Particularly, comprise the DDR3(Double Data Rate that is connected with described car entertainment control treater 10, the Double Data Rate synchronous DRAM) video memory unit, SD(Secure Digital Memory Card, safe digital card) card unit, EMMC(EmbeddedMultiMediaCard, in-line memory) functional unit such as interface unit and gyroscope storage location, USB(Universal Serial BUS, USB); The audio unit that is connected with described audio frequency and video image processor 20, FMAM module (FM/AM) unit for example, COBBAIF (AUX IN) unit, microphone (MIC) unit, DVD(Digital Versatile Disc, digital versatile disc) unit, power management (PMU) unit, audio frequency power amplifier (PA) unit, fly shuttle unit, audio-frequency function unit such as keyboard (Keyboard) unit and various controls, the video unit that is connected with described audio frequency and video image processor 20, for example camera (Camera) unit, Liquid Crystal Display (LCD) (LCD) unit, mobile TV (CMMB) unit, after pad crystal display (Rear LCD) unit, touch-screen (Touch) unit, video capability unit such as player (IPod) unit and external audio frequency and video input (RSE/RVC) unit; Functional units such as controller local area network (CAN) unit that is connected with described Long-distance Control treater 30, main control unit (MCU), global positioning system (GPS) unit, power controller local area network (PCAN) unit, car body controller local area network (BCAN) unit and 3G unit.The circuit card that the utility model provides is based on aforesaid system framework and does the design of power-supply system and management; Certainly, those skilled in the art is understood that, functional unit in the described vehicle intelligent information system is not limited thereto, those skilled in the art is on the basis of aforementioned functional unit, can also increase and decrease accordingly as required or replace as required, to satisfy the demand of actual vehicle intelligent information system.
Please refer to shown in Figure 1ly, as specific embodiment, described a plurality of functional unit adaptive areas 2 comprise: the first functional unit adaptive area 21, its adapt voltages are 5 volts; The second functional unit adaptive area 22, its adapt voltages are 3.3 volts; The 3rd functional unit adaptive area 23, its adapt voltages are 1.8 volts.Particularly, include a plurality of functional units in the described vehicle intelligent information system, the operating 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, the smooth operation that is conducive to system, present embodiment has been done detailed power management design to the partial function unit.Specifically according to identical or approaching collocation of functional unit power input, the functional unit layout that all power input sizes are identical or approaching is conducive to design and the management of power-supply system like this in same functional unit adaptive area.As a kind of embodiment, described functional unit adaptive area 2 comprises the first functional unit adaptive area 21, the second functional unit adaptive area 22 and the 3rd functional unit adaptive area 23.Wherein, the adapt voltages of the first functional unit adaptive area 21 is 5 volts, layout has functional unit on this functional unit adaptive area, specifically be used for layout for example the operating voltage such as at least a of usb interface unit, rearmounted LCD unit, backlight (LED) unit, port driver (BOTTON) unit, controller local area network (CAN) unit, global positioning system (GPS) unit and 3G unit be 5 volts functional unit; The adapt voltages of the second functional unit adaptive area 22 is 3.3 volts, layout has functional unit on this functional unit adaptive area, specifically be used for layout for example the operating voltage such as at least a of LCD unit, touch screen unit, EMMC storage location, SD card unit, change-over switch (SWITCH) unit, DVD unit, audio frequency panel unit and main control unit be 3.3 volts functional unit; The adapt voltages of the 3rd functional unit adaptive area 23 is 1.8 volts, layout has functional unit on this functional unit adaptive area, specifically be used for layout for example the operating voltage such as at least a of DDR3 video memory unit and TV (TV) unit be 1.8 volts functional unit.
On the basis of aforementioned specific functional units adaptive area and functional unit layout embodiment, those skilled in the art is understood that, the type of described functional unit adaptive area is not limited thereto, can also be configured according to the real work voltage of functional unit, namely can also comprise other functional unit adaptive areas, for example adapt voltages is 8.3 volts, be used for arranges the functional unit adaptive area of FMAM module group unit; Adapt voltages is 2.6 volts, be used for to arrange the functional unit adaptive area of gyro unit etc.
As specific embodiment, for the power supply that guarantees each functional unit all is clean and stable, separately at different wiring layers, numeral connects up and simulates not concurrent ground connection with the wiring of the numeral of each power supply cabling on the circuit and analog wire laying.Particularly, the power supply cabling that exports each described functional unit adaptive area on the described circuit to includes numeral wiring and analog wire laying, described numeral wiring separates at different wiring layers with analog wire laying, and each node of numeral wiring and analog wire laying concurrent ground connection not, can guarantee that like this power supply of each functional unit all can not be interfered mutually; Be that described numeral wiring all is different networks with each part of analog wire laying, different node ground connection can guarantee that like this interference that each part is subjected to is minimum.
As specific embodiment, the wiring width of main power source part is 10-30 mil (mil) on the described circuit.Particularly, in described vehicle intelligent system, the cabling of main power source part is related to the smooth operation of whole vehicle intelligent information system, so its wiring of setting type particular importance that seems.But this industry is gone back the unified live width standard of neither one at present, and each producer has nothing in common with each other for composing and the wiring width of main power source part.Contriver of the present utility model reserves enough width with the wiring of main power source part on the described circuit by analysis, and its live width specifically is arranged to 10-30mil, is particularly conducive to the smooth operation of whole vehicle intelligent information system.Preferably, contriver of the present utility model is through repeatedly test and emulation, and the wiring width that draws main power source part is that 12mil is this system framework of the utility model Fig. 2 optimal live width of arranging in pairs or groups.
As specific embodiment, the functional unit of high-power power consumption is near described vehicle power layout on the described circuit.Particularly, when described functional unit was in the layout of on the corresponding functional unit adaptive area, the functional unit power consumption of high-power power consumption in the described functional unit was bigger, caused the electric current on the corresponding cabling to cause heating greatly easily; Therefore, in order to reduce the heating on the corresponding cabling, keep the heating balance on every cabling, present embodiment is preferably arranged the as close as possible described vehicle power of the functional unit of high-power power consumption, be EMI(ElectroMagnetic Interference, electromagnetic interference), EMC(Electro Magnetic Compatibility, electromagnetic compatibility) etc. reserve enough redundant spaces, the functional unit cabling that can avoid big electric current like this is long and produce interference such as some EMI and EMC, guarantees the rational deployment of each functional unit power supply.
As specific embodiment, described voltage-regulating circuit comprises: lc circuit, be used for the voltage of described vehicle power is carried out the filtering processing, and namely choose required frequency component, filtering unwanted frequency component; Power module circuitry is used for that filtered voltage is carried out step-down and handles; Power protecting circuit after the voltage after the step-down being carried out the power protection processing, is exported a plurality of voltages to corresponding functional unit adaptive area.As embodiment, the voltage of described vehicle power is 12 volts, and lc circuit is handled 12 volts the voltage frequency selection network that vibrates; To vibrate voltage behind the frequency selection network of described power module circuitry carries out step-down and handles, and obtains other various required voltages such as 5 volts, 3.3 volts, 1.8 volts; The voltage of power protecting circuit after with step-down removes noise processed, exports to then in the described functional unit adaptive area, so that each corresponding functional unit uses in the vehicle intelligent information system.Wherein, can to select model for use according to the step-down size be the chip of TPS54260, TPS62290, TPS76501, TPS74701 to described power module circuitry.
As specific embodiment; described power protecting circuit is used for that the voltage after the step-down is carried out power protection to be handled; to realize effective protection of power supply; it is stable that assurance outputs to the power supply of corresponding function unit in the vehicle intelligent information system; without interruption, for example the voltage after the step-down is removed noise processed etc.Particularly, described power protecting circuit is used for being input to vehicle intelligent information system corresponding function unit, and for example 12 volts, 2 amperes level power supplies using of car entertainment control treater 10 are exported interference protection.As a kind of embodiment, the circuit of described power protecting circuit sees also shown in Figure 3, specifically comprises: model is first power supply chip 100 of TPS54260, and the pin PVIN1～PVIN4 of described first power supply chip is connected to form a node M AIN3V8; The pin VIN of first power supply chip is connected with an end of resistance R 217, and pin VIN_LD34 is connected with an end of resistance R 215, and pin VIN_LD02 is connected with an end of resistance R 211, the other end connecting joint MAIN3V8 of resistance R 217, R215 and R211; An end ground connection after the capacitor C 183-C188 parallel connection, the other end is connected to node M AIN3V8; Ground connection after the end of capacitor C 199-C213 links together, the other end of C199-C201 is connected to chip pin VIN_LD34, and the other end of C202-C204 is connected to chip pin VIN_LD02, and the other end of C205-C212 is connected to node M AIN3V8; The other end of C213 is connected to chip pin VIN.Adopt the power protecting circuit of aforementioned structure; can to corresponding function unit in the vehicle intelligent information system for example the power supply of car entertainment control treater 10 power supply front end input stages advance protection; guarantee that input is stable, the noise that no electromagnetic interference produces is realized except noise processed.
As specific embodiment, reliable in order to guarantee that lc circuit exports the voltage of power module circuitry to, described voltage-regulating circuit 1 also comprises overvoltage crowbar (OVP), described overvoltage crowbar is used for the voltage after the filtering processing is carried out overvoltage protection, exports described power module circuitry then to; It is the chip realization of LM5060 that its concrete overvoltage crowbar can be selected model for use.
As specific embodiment, stablize in order to guarantee the voltage of supplying with described functional unit, described voltage-regulating circuit 1 also comprises mu balanced circuit, and described mu balanced circuit is used for the voltage behind the power protection is carried out voltage stabilizing, exports a plurality of voltages then to corresponding functional unit adaptive area; Its concrete mu balanced circuit can adopt the custom circuit of this area or chip to realize that for example model is the chip of LTC3589.
As specific embodiment, less in order to guarantee the power-supply ripple that outputs in the vehicle intelligent information system, power supply is clean, and concrete power module circuitry is provided in the present embodiment.Particularly, described power module circuitry comprises: first power module circuitry is used for distributing 0.85～1.1 volt, 2 amperes and 1.3 volts, 1 ampere level power supply; The second source modular circuit is used for distributing 1.3 volts, 0.25 ampere and 2.5 volts, 1 ampere level power supply.Described first power module circuitry and second source modular circuit specifically are used for the power supply that the vehicle intelligent information system is used is distributed or the sub-module power supply, adopt described first power module circuitry and second source modular circuit, can realize the modularization management of vehicle intelligent information system power supply, can remove complicated debugging and modeling from, for the module management of hardware and software platform with call.
As embodiment, the circuit of described first power module circuitry sees also Fig. 4 and shown in Figure 5, comprises that specifically model is the second source chip 200 of TPS74701, and described second source pin of chip VDDGP_1～VDDGP_15 is connected to form a node VDDGP; Capacitor C 214～C220 parallel connection, the end after the parallel connection is connected with node VDDGP, other end ground connection; Capacitor C 221～C225 parallel connection, the end after the parallel connection is connected with node VDDGP, other end ground connection; Unit interface corresponding in described node VDDGP and the vehicle intelligent information system connects, and for example the VBUCKCORE interface with described car entertainment control treater 10 is connected, for it provides 0.85～1.1 volt, 2 amperes power supply.Simultaneously, described second source pin of chip VCC_1～VCC_33 is connected to form a node VCC_1V3; Capacitor C 226～C233 parallel connection, the end after the parallel connection is connected with node VCC_1V3, other end ground connection; Capacitor C 234～C241 parallel connection, the end after the parallel connection is connected with node VCC_1V3, other end ground connection; Unit interface corresponding in described node VCC_1V3 and the vehicle intelligent information system connects, and for example the VBUCKPRO interface with described car entertainment control treater 10 is connected, for it provides 1.3 volts, 1 ampere power supply.
As embodiment, the circuit of described second source modular circuit sees also shown in Figure 5, comprises that specifically model is the power supply chip of TPS62290, and the pin VDDA_1～VDDA_4 of described power supply chip is connected to form a node VDDA_1V3; Capacitor C 242～C246 parallel connection, the end after the parallel connection is connected with node VDDA_1V3, other end ground connection; Capacitor C 262～C263 parallel connection, the end after the parallel connection is connected with node VDDA_1V3, other end ground connection, and the VDDAL1 of described power supply chip is connected with node VDDA_1V3; Unit interface corresponding in described node VDDA_1V3 and the vehicle intelligent information system connects, and for example the VLDO10_1V3 interface with described car entertainment control treater 10 is connected, for it provides 1.3 volts, 0.25 ampere power supply.Simultaneously, capacitor C 264～C265 parallel connection, the end after the 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; Unit interface corresponding in described node VDD_REG_2V5 and the vehicle intelligent information system connects, and for example the VBUCKPERI interface with car entertainment control treater 10 is connected, for it provides 2.5 volts, 1 ampere power supply.Certainly, those skilled in the art is understood that, described first power module circuitry is not limited to be connected with car entertainment control treater 10 with the second source modular circuit, can also be with other need the functional unit of this power supply to be connected in the vehicle intelligent information system, for example audio frequency and video image processor 20 and other functional unit.
The further power supply in order to guarantee that the vehicle intelligent information system is stable, the utility model has also advanced control to the electrifying timing sequence of described hardware system framework, guarantees that the electrifying timing sequence of each parts necessarily puts in place.The detailed process that powers on is as follows:
At first need to start the vehicle intelligent information system and power on, be specially to connect onboard and will guarantee ACC ON, described ACC ON represents that battery is in the work power supply state on the automobile.
Next comprises that the access part of CAN bus will guarantee to open at least, guarantee simultaneously chip that Long-distance Control treater 30 selects for use for example that part of MPC5606 be in normal electricity supply, to guarantee can to wake the 3G module up after the system hibernates.
The decision circuit that the hardware controls part is detailed please refer to shown in Figure 6, among this figure, has clearly marked and has defined each hardware interface and need be connected which signal, and concrete logic control will carefully be stated in the time schedule control process of follow-up startup and shutdown.
In the vehicle intelligent information system that the utility model provides, each mode of operation will go to control the function of next mode of operation through series of steps, this will relate to the power supply status migration of total system, and the power supply status migration step that this system is detailed sees also shown in Figure 7.In the drawings, each arrow be the initialization state foremost, end is the power cut-off state of present event, has only the mode of operation of initiating terminal rationally just to enter into end, could begin next mode of operation.Wherein, specifying of described Fig. 7 sees the following form 1.
Table 1:
As specific embodiment, for guarantee system boot and when shutdown each functional unit or the electrifying timing sequence of hardware necessarily put in place, also be provided with on the circuit of the vehicle intelligent information system that the utility model provides:
The start control module is controlled the electrifying timing sequence of each functional unit when being used for vehicle intelligent information system starting up;
The shutdown control module is for the electric sequential of going of each functional unit of vehicle intelligent information system shutdown startup control system.
Particularly, system boot startup sequential is seen shown in Figure 8, please refer to Fig. 6 and Fig. 7 simultaneously.Described start control module specifically comprises: the battery power on-unit, be used for battery power is connected, and chip MPC5606 powered on after power supply B+ reached operating voltage range, opened the CAN bus power source in 200～400 milliseconds, and complete machine enters readiness for action; Enter the Ready1 unit, be used for entering Ready1 state (backlight OFF state), key is got to the ACC shelves, power supply BAT1 energising, and when perhaps the CAN/3G/GPS wake-up signal occurred, SH7269 put height with the MAIN_POW_EN pin, power supply BAT1 energising; Chip I MX53 goes up electric unit, is used for the SYS_POW_EN pin is put height, and power supply BAT2 energising, chip I MX53 powers on; IMX53_STATUS puts high unit, is used for chip I MX53 status pin IMX53_STATUS is put height; Entering the Ready2 unit, be used for the AUDIO(sound equipment) panel master button presses, chip SH7269 starts the front panel power supply, comprises the LCD(Liquid Crystal Display (LCD)) backlight electric power (LED) and touch-screen power supply, enter Ready2(backlight ON state).So far, finish the time schedule control of whole vehicle intelligent information system starting up and corresponding function unit.
Preamble section when system closedown partly comprises three, order just can be finished corresponding shutdown successively.Particularly, described shutdown control module comprises the first shutdown control module, the second shutdown control module and the 3rd shutdown control module.The sequential of the described first shutdown control module for start standby signal (ready-standby), backlight close signal enabling (backlight closes-ready), preamble section is seen shown in Figure 9ly when concrete, please refer to Fig. 6 and Fig. 7 simultaneously.The described first shutdown control module specifically comprises: panel main power source control unit, and when pressing for AUDIO panel main power source key weak point, chip SH7269 closes the front panel power supply, and LCD is backlight to be extinguished, and enters Ready1 state (backlight OFF state); If the main power source key is pressed again in 30 second time, then chip SH7269 opens the front panel power supply, and the LCD backlight lightening enters Ready2(backlight ON state); If AUDIO panel main power source bond distance was by 7 seconds, complete machine directly enters standby mode; Chip I MX53 data storage cell is used for chip I MX53 and deposits stored data in, enters dormant state; Chip SH7269 dormancy unit is used for chip SH7269 and enters dormant state; Chip SH7269 wakeup unit is used for the main power source key is pressed, and chip SH7269 wakes up, and it is backlight to light LCD; Chip I MX53 wakeup unit is used for chip I MX53 is waken up, reads stored data.
The sequential of the described second shutdown control module for start off signal (ready-shutdown), backlight closes signal standby (backlight pass-standby), preamble section is seen shown in Figure 10ly in the time of specifically, please refer to Fig. 6 and Fig. 7 simultaneously.The described second shutdown control module specifically comprises: the standby mode control unit is used for key and reaches the OFF shelves, AVN(audio entertainment module) can keep mode of operation 30 seconds, during as to detect the BAT power line voltage low excessively, AVN directly enters standby mode; The backlight electric power closing unit for normal as the BAT power line voltage, and does not have outside any button operation, then enters Ready1(backlight OFF state), close chip I MX53 peripheral devices, close backlight electric power; Chip I MX53 power-off unit is used for putting low IMX53_STATUS pin, chip I MX53 close ready after, close chip I MX53 power supply; Chip SH7269 power-off unit is used for putting low 7269_SPC56_WDTOVFn pin, chip SH7269 close ready after, close chip SH7269 power supply, complete machine enters standby mode.
The sequential of described the 3rd shutdown control module is low electric weight shutdown, and preamble section is seen shown in Figure 11ly when concrete, please refer to Fig. 6 and Fig. 7 simultaneously.Described the 3rd shutdown control module specifically comprises: the BAT voltage detection unit detects BAT voltage for chip MPC5606 by digital to analogy conversion port (AD) and drops to utmost point low voltage operating scope; Chip I MX53 dormancy unit is used for putting low IMX53_STATUS pin, and chip I MX53 enters park mode; Chip I MX53 power supply for detection of the BAT power supply, as not recovering the normal voltage operating range, is closed in chip I MX53 power-off unit; The AVN power supply for detection of the BAT power supply, as not recovering the normal voltage operating range, is closed in AVN power-off unit; Chip MPC5606 dormancy unit is used for chip MPC5606 and detects BAT power supply program low voltage, and chip MPC5606 changes deep-sleep over to.So far, finish the time schedule control of vehicle intelligent information system shutdown startup and corresponding function unit.
As preferred embodiment, do not work for a long time for the assurance system and to enter deep sleep state, as the control requirement when wanting need of work with system wake-up, also be provided with on the circuit of the vehicle intelligent information system that the utility model provides and wake control module up, be used for controlling when the vehicle intelligent information system is waken up the electrifying timing sequence of each functional unit.Particularly, described when waking control module concrete up preamble section see shown in Figure 12, please refer to Fig. 6 and Fig. 7 simultaneously, the described control module of waking up specifically comprises: chip MPC5606 wakeup unit, for the outside wake-up signal that is sent by GPS, 3G or CAN bus, flip chip MPC5606 wakes up from park mode; Chip SH7269 goes up electric unit, is used for chip MPC5606 and puts high MAIN_POW_EN pin, and chip SH7269 powers on; Chip I MX53 goes up electric unit, extends out IC for chip MPC5606 and puts high SYS_POW_EN pin, and chip I MX53 powers on; Confirmation unit finishes for confirming that chip I MX53 powers on; The panel wakeup unit is used for the panel main switch and presses, and LCD is backlight to power on, the front panel power supply electrifying.So far, finish the time schedule control with the corresponding function unit waken up of whole vehicle intelligent information system.
The utility model also provides a kind of control method of vehicle intelligent information system, the circuit of described vehicle intelligent information system as previously mentioned, on described a plurality of functional unit adaptive area respectively layout car entertainment control treater 10, audio frequency and video image processor 20 and Long-distance Control treater 30 are arranged, described control method comprises start control step and shutdown control step; Wherein,
Described start control step order comprises: connect vehicle power, the Long-distance Control treater powered on after first power supply of described voltage-regulating circuit output reached operating voltage range; Key is got to the ACC shelves, the second source energising of described voltage-regulating circuit output, and described audio frequency and video image processor powers on; Described audio frequency and video image processor will be controlled the pin of the 3rd power supply energising of described voltage-regulating circuit output and put height, described the 3rd power supply energising, and described car entertainment control treater powers on; The status pin of described car entertainment control treater is put height; Sound equipment panel master button is pressed, and described audio frequency and video image processor starts the front panel power supply that comprises backlight electric power and touch-screen power supply, and system enters backlight and opens state; Preamble section is seen shown in Figure 8 when concrete, please refer to Fig. 6 and shown in Figure 7 simultaneously, particularly, vehicle power is connected, the Long-distance Control treater powered on after the first power supply B+ of described voltage-regulating circuit output reached operating voltage range, open the CAN bus power source in 200～400 milliseconds, complete machine enters readiness for action; Enter backlight off status (Ready1 state), key is got to the ACC shelves, the second source BAT1 energising of described voltage-regulating circuit output, when perhaps the CAN/3G/GPS wake-up signal occurs, described audio frequency and video image processor is put height with the MAIN_POW_EN pin, the second source BAT1 energising of described voltage-regulating circuit output, described audio frequency and video image processor powers on; Described audio frequency and video image processor will be controlled the SYS_POW_EN pin of the 3rd power supply BAT2 of described voltage-regulating circuit output and put height, described the 3rd power supply BAT2 energising, and described car entertainment control treater powers on; Described car entertainment control treater is put height with its status pin IMX53_STATUS; With the AUDIO(sound equipment) panel master button presses, described audio frequency and video image processor comprises the LCD(Liquid Crystal Display (LCD)) the front panel power supply of backlight electric power and touch-screen power supply, system enters backlight and opens state (Ready2 state), so far, finish the time schedule control of whole vehicle intelligent information system starting up and corresponding function unit.
Described shutdown control step order comprises: described sound equipment panel master button weak point is pressed, and described audio frequency and video image processor is closed the front panel power supply, backlight extinguishing, and system enters the backlight off status; The status pin of described car entertainment control treater is put low, and described car entertainment control treater cuts out ready, closes the 3rd power supply of the described voltage-regulating circuit output of power supply of described car entertainment control treater; Described audio frequency and video image processor is put its status pin low, and described audio frequency and video image processor is closed ready, closes the second source of the described voltage-regulating circuit output of power supply of described audio frequency and video image processor, and system enters standby mode; Described car entertainment control treater detects the first power supply program low voltage of described voltage-regulating circuit output, and described car entertainment control treater changes deep power down mode over to; Particularly, described shutdown control step comprises the first shutdown control step, the second shutdown control step and the 3rd shutdown control step, the sequential of the described first shutdown control step for start standby signal (ready-standby), backlight close signal enabling (backlight closes-ready), preamble section is seen shown in Figure 9 when concrete, please refer to Fig. 6 and Fig. 7 simultaneously, the described first shutdown control step specifically comprises: sound equipment panel master button is lacked following time, described sound view is closed the front panel power supply as treater, LCD is backlight to be extinguished, and enters the backlight off status; If main button is pressed again in 30 second time, described sound view is then opened the front panel power supply as treater, and the LCD backlight lightening enters backlight and opens state; If by 7 seconds, machine system directly entered standby mode to sound equipment panel master by the bond distance;
The sequential of the described second shutdown control step is for starting off signal (ready-shutdown), backlight pass signal standby (backlight pass-standby), preamble section is seen shown in Figure 10 when concrete, please refer to Fig. 6 and Fig. 7 simultaneously, the described second shutdown control step specifically comprises: key reaches the OFF shelves, AVN(audio entertainment module) can keep mode of operation 30 seconds, as detecting vehicle power BAT voltage below level, AVN directly enters standby mode during this time; Normal as vehicle power BAT voltage, and do not have outside any button operation, then enter the backlight off status, close described car entertainment control treater peripheral devices, close backlight electric power; Described car entertainment control treater is put its status pin IMX53_STATUS pin low, and described car entertainment control treater cuts out ready, closes the 3rd power supply BAT2 of the described voltage-regulating circuit output of described car entertainment control treater power supply; Described sound view is put its 7269_SPC56_WDTOVFn status pin low as treater, described sound view is closed ready as treater, close described sound view as the second source BAT1 of the described voltage-regulating circuit output of treater power supply, complete machine enters standby mode;
The sequential of described the 3rd shutdown control step is low electric weight shutdown, preamble section is seen shown in Figure 11 when concrete, please refer to Fig. 6 and Fig. 7 simultaneously, described the 3rd shutdown control step specifically comprises: described Long-distance Control treater detects vehicle power BAT voltage by digital to analogy conversion port (AD) and drops to utmost point low voltage operating scope; Detect vehicle power BAT, as not recovering the normal voltage operating range, close described car entertainment control treater power supply and AVN power supply; Described Long-distance Control treater detects vehicle power BAT program low voltage, and described Long-distance Control treater changes deep power down mode over to, so far, finishes the time schedule control of vehicle intelligent information system shutdown startup and corresponding function unit.
The vehicle intelligent information system control method that adopts the utility model to provide can effectively guarantee the vehicle intelligent information system when startup and shutdown, and each functional unit of system or the electrifying timing sequence of hardware necessarily put in place, thereby can realize the stable power-supplying of system.
As concrete implementation column, described control method also comprises wakes the control step up, and the described control step order of waking up comprises: GPS, 3G, CAN bus are sent outside wake-up signal, trigger described Long-distance Control treater and wake up from park mode; Described Long-distance Control treater will be controlled the pin of the second source energising of described voltage-regulating circuit output and put height, described second source energising, and described audio frequency and video image processor powers on; Described Long-distance Control treater will be controlled the pin of the 3rd power supply energising of described voltage-regulating circuit output and put height, described the 3rd power supply energising, and described car entertainment control treater powers on; Sound equipment panel master button is pressed, and backlight electric power powers on, the front panel power supply electrifying, and system enters backlight and opens state; Preamble section is seen shown in Figure 12ly when concrete, please refer to Fig. 6 and Fig. 7 simultaneously, and the described control step of waking up specifically comprises: send outside wake-up signal by GPS, 3G or CAN bus, trigger described Long-distance Control treater and wake up from park mode; The pin MAIN_POW_EN that described Long-distance Control treater will be controlled the second source BAT1 energising of described voltage-regulating circuit output puts height, and described audio frequency and video image processor powers on; Described Long-distance Control treater extends out the pin SYS_POW_EN that IC will control the 3rd power supply BAT2 of described voltage-regulating circuit output and puts height, and described car entertainment control treater powers on; Described car entertainment control treater powers on and finishes, and the panel main switch is pressed, and LCD is backlight to power on, and the front panel power supply electrifying so far, is finished the time schedule control with the corresponding function unit waken up of whole vehicle intelligent information system.Adopt and wake the control step up in this enforcement, the system that can guarantee does not work when entering deep sleep state for a long time, system wake-up can be restarted work according to need of work.
As specific embodiment, it is the chip of IMX53 series that described amusement control treater 10 is selected model for use, and it is the chip of SH7269 that described audio frequency and video image processor 20 is selected model for use, and it is the chip of MPC5606 that described Long-distance Control treater 30 is selected model for use.In the present embodiment, selected chip is that industry is up-to-date, this collocation also is that contriver of the present utility model authenticates through strict, and like product chips routine processes complexity before can overcoming, the defective that the high part of automobile product information real-time is separated has not effectively guaranteed the stability that total system is moved.Certainly, those of ordinary skills also can adopt other similar chips according to foregoing description, do not give an example one by one at this.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. the circuit of a vehicle intelligent information system is characterized in that, described circuit is provided with voltage-regulating circuit and a plurality of functional unit adaptive area; Wherein,
One end of described voltage-regulating circuit is connected with vehicle power, the other end is connected with described a plurality of functional unit adaptive areas, described voltage-regulating circuit is used for the voltage of vehicle power is adjusted, and exports a plurality of voltages corresponding functional unit adaptive area to described a plurality of functional unit adaptive areas;
Described functional unit adaptive area is used for arranging the functional unit of described vehicle intelligent information system, each described functional unit adaptive area requires to dispose corresponding adapt voltages according to the power input of described functional unit, and described voltage-regulating circuit exports the voltage of corresponding described functional unit adaptive area to according to described adapt voltages adjustment.
2. the circuit of vehicle intelligent information system according to claim 1 is characterized in that, described voltage-regulating circuit comprises:
Lc circuit is used for the voltage of described vehicle power is carried out the filtering processing;
Overvoltage crowbar is used for filtered voltage is carried out overvoltage protection;
Power module circuitry is used for that the voltage behind the overvoltage protection is carried out step-down and handles;
Power protecting circuit is after carrying out the voltage after the step-down power protection processing;
Mu balanced circuit is used for the voltage behind the power protection is carried out voltage stabilizing, exports a plurality of voltages then to corresponding functional unit adaptive area.
3. the circuit of the vehicle intelligent information system of stating according to claim 2 is characterized in that described power module circuitry comprises:
First power module circuitry is used for distributing 0.85～1.1 volt, 2 amperes and 1.3 volts, 1 ampere level power supply;
The second source modular circuit is used for distributing 1.3 volts, 0.25 ampere and 2.5 volts, 1 ampere level power supply.
4. the circuit of vehicle intelligent information system according to claim 1 is characterized in that, described a plurality of functional unit adaptive areas comprise: the first functional unit adaptive area, its adapt voltages are 5 volts; The second functional unit adaptive area, its adapt voltages are 3.3 volts; The 3rd functional unit adaptive area, its adapt voltages are 1.8 volts.
5. the circuit of vehicle intelligent information system according to claim 4 is characterized in that,
Layout has functional unit on the described first functional unit adaptive area, and this functional unit comprises at least a in usb interface unit, rearmounted LCD unit, LED unit, BOTTON unit, CAN unit, GPS unit and the 3G unit;
Layout has functional unit on the described second functional unit adaptive area, and this functional unit comprises at least a in LCD unit, touch screen unit, EMMC storage location, SD card unit, SWITCH unit, DVD unit and the main control unit;
Layout has functional unit on described the 3rd functional unit adaptive area, and this functional unit comprises at least a in DDR3 video memory unit and the TV unit.
6. the circuit of the vehicle intelligent information system of stating according to claim 1, it is characterized in that, the power-supply wiring that exports each described functional unit adaptive area on the described circuit to comprises numeral wiring and analog wire laying, described numeral wiring separates at different wiring layers with analog wire laying, and described numeral wiring and analog wire laying be concurrent ground connection not.
7. the circuit of the vehicle intelligent information system of stating according to claim 1 is characterized in that, the functional unit of high-power power consumption is near described vehicle power layout on the described circuit.
8. according to the circuit of each described vehicle intelligent information system among the claim 1-7, it is characterized in that, also be provided with on the described circuit:
The start control module is controlled the electrifying timing sequence of each functional unit when being used for vehicle intelligent information system starting up;
The shutdown control module is for the electric sequential of going of each functional unit of vehicle intelligent information system shutdown startup control system.
9. the circuit of vehicle intelligent information system according to claim 8 is characterized in that, also is provided with on the described circuit and wakes control module up, is used for controlling when the vehicle intelligent information system is waken up the electrifying timing sequence of each functional unit.
10. the circuit of vehicle intelligent information system according to claim 1, it is characterized in that, on described a plurality of functional unit adaptive area respectively layout car entertainment control treater, audio frequency and video image processor and Long-distance Control treater are arranged, it is the chip of IMX53 series that described car entertainment control treater is selected model for use, it is the chip of SH7269 that described audio frequency and video image processor is selected model for use, and it is the chip of MPC5606 that described Long-distance Control treater is selected model for use.
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| CN 201320114163 CN203211228U (en) | 2013-03-13 | 2013-03-13 | Circuit for vehicle-mounted intelligent information system |
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| CN 201320114163 CN203211228U (en) | 2013-03-13 | 2013-03-13 | Circuit for vehicle-mounted intelligent information system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103532724A (en) * | 2013-10-31 | 2014-01-22 | 北京经纬恒润科技有限公司 | MOST network interface circuit and MOST network state control method |
| CN104044525A (en) * | 2013-03-13 | 2014-09-17 | 广州汽车集团股份有限公司 | Circuit and control method of vehicle-mounted intelligent information system |
| CN104104977A (en) * | 2014-07-25 | 2014-10-15 | 重庆长安汽车股份有限公司 | Vehicle-mounted digital television controller and achieving method of vehicle-mounted digital television controller |
| CN107472171A (en) * | 2017-07-04 | 2017-12-15 | 北汽福田汽车股份有限公司 | Power supply management device, method and vehicle |
| CN107554453A (en) * | 2017-09-21 | 2018-01-09 | 南京瑞贻电子科技有限公司 | A kind of automobilism circuit start and stop integrated controller and monitoring and managing method |
| CN111212357A (en) * | 2018-11-22 | 2020-05-29 | 广州汽车集团股份有限公司 | Method and device for controlling sound system |
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2013
- 2013-03-13 CN CN 201320114163 patent/CN203211228U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104044525A (en) * | 2013-03-13 | 2014-09-17 | 广州汽车集团股份有限公司 | Circuit and control method of vehicle-mounted intelligent information system |
| CN104044525B (en) * | 2013-03-13 | 2016-09-14 | 广州汽车集团股份有限公司 | The circuit of a kind of vehicle intelligent information system and control method |
| CN103532724A (en) * | 2013-10-31 | 2014-01-22 | 北京经纬恒润科技有限公司 | MOST network interface circuit and MOST network state control method |
| CN103532724B (en) * | 2013-10-31 | 2016-08-17 | 北京经纬恒润科技有限公司 | A kind of MOST network interface circuit and MOST network state control method |
| CN104104977A (en) * | 2014-07-25 | 2014-10-15 | 重庆长安汽车股份有限公司 | Vehicle-mounted digital television controller and achieving method of vehicle-mounted digital television controller |
| CN107472171A (en) * | 2017-07-04 | 2017-12-15 | 北汽福田汽车股份有限公司 | Power supply management device, method and vehicle |
| CN107554453A (en) * | 2017-09-21 | 2018-01-09 | 南京瑞贻电子科技有限公司 | A kind of automobilism circuit start and stop integrated controller and monitoring and managing method |
| CN107554453B (en) * | 2017-09-21 | 2019-02-12 | 南京瑞贻电子科技有限公司 | A kind of automobilism circuit start and stop integrated controller and monitoring and managing method |
| CN111212357A (en) * | 2018-11-22 | 2020-05-29 | 广州汽车集团股份有限公司 | Method and device for controlling sound system |
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