CN104249670B - A kind of general automobile controller based on modelling - Google Patents
A kind of general automobile controller based on modelling Download PDFInfo
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- CN104249670B CN104249670B CN201410450764.0A CN201410450764A CN104249670B CN 104249670 B CN104249670 B CN 104249670B CN 201410450764 A CN201410450764 A CN 201410450764A CN 104249670 B CN104249670 B CN 104249670B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
A kind of general automobile controller based on modelling, position signalling including CPU processor and connection thereof processes circuit, AD signal processing circuit, on-off model processes circuit, frequency quantity signal processing circuit, pwm signal drive circuit, SPI/CAN/RS232 telecommunication circuit, DA output circuit, high-power drive circuit, fault monitoring and protection circuit, power down delay circuit, clock and reset circuit, CPU processor uses 32 floating point processor TMS320F28335, directly can run by the floating point code of auto-building model in the rapid prototyping stage, without extra real-time simulation platform and the fixed point of code, integrated, a control system hardware development only need to be carried out during exploitation, later stage controller goes wrong also easy-to-search reason and rectification.The design not only versatility is relatively strong, support floating-point operation, and can reduce development cost and time, be easy to later maintenance.
Description
Technical field
The present invention relates to technical field of automobile electronic control, particularly relate to a kind of general automobile controller based on modelling, it is particularly applicable to provide the automobile controller that a kind of versatility is relatively strong, can support floating-point operation, to reduce development cost and time, to be easy to later maintenance.
Background technology
nullIn automobile controller development process，Such as entire car controller、AMT controller、Engine controller、The control strategy of the controllers such as motor master controller is complex，After using Matlab/Simulink to put up，Must the debugging optimization repeatedly of carrying out one by one，And，Current controller can not directly run Matlab/Simulink control strategy，Need to use the equipment of specialty，And develop the most supporting signal and drive and modulate circuit realizes jointly，Versatility is poor，In addition，After control strategy debugging optimization completes，Must also be by the floating-point mould fixed point of control strategy，Then the C code of fixed point is generated，Writing controller is further debugged，Thus extend the controller development time，And in use，Fault in terms of control strategy once occurs after controller entrucking，Reason is difficult to search，Change more inconvenient，Later maintenance is difficult to.Therefore, current controller is primarily present problems with:
1, each quasi-controller such as entire car controller, AMT controller, engine controller, motor master controller can not be general, needs many set Special debugging equipment, and develops many set controllers and corresponding drive circuit, adds development time and development cost；
2, floating-point operation function is not supported due to the most conventional controller, after control strategy model conversion must being the C code pinpointed, carrying out integrated could using with basic software, this not only extends the controller development time, and significantly increases the difficulty of later maintenance.
nullChina，Application publication number is CN102019888A，Shen Qing Publication day is entire car controller and the control method that the application for a patent for invention on April 20th, 2011 discloses a kind of pure electric automobile，This invention utilizes and is built-in with the flush bonding processor of A/D translation function and CAN translation function to realize entire car controller，To realize saving A/D conversion interface circuit in entire car controller、Simplify CAN change-over circuit，And reduce the probability of malfunction of entire car controller、Improve the purpose of the reliability of entire car controller，But due to a kind of controller that it is targeted，I.e. entire car controller，Thus it still has the defect that versatility is poor，Once it is designed complete，Just may be only available for a fixing direction，If desired other places it are applied to，It is accomplished by accent and starts again to develop controller，And configure new commissioning device、Drive circuit，Considerably increase development time and cost.
Summary of the invention
It is an object of the invention to overcome versatility is poor, development cost is higher, the development time is longer present in prior art defect and problem, it is provided that a kind of versatility is compared with the general automobile controller based on modelling strong, development cost is relatively low, the development time is shorter.
For realizing object above, the technical solution of the present invention is: a kind of general automobile controller based on modelling, the CPU processor including system power supply and being connected electrically, signal conditioning circuit, telecommunication circuit；Described signal conditioning circuit includes that AD signal processing circuit, on-off model process circuit, and telecommunication circuit includes CAN communication circuit；The input of described CPU processor processes circuit one way signal with AD signal processing circuit, on-off model and is connected, and CPU processor is connected with CAN communication circuit two-way signaling；
Described general automobile controller also includes drive circuit, DA output circuit, fault detect protection circuit, power down delay circuit, clock and the reset circuit electrically connected with system power supply；
Described CPU processor is connected with fault monitoring and protection circuit, power down delay circuit two-way signaling; the outfan of CPU processor is connected with DA output circuit one way signal; the input of CPU processor is connected with clock and reset circuit one way signal, and system power supply is connected with power down delay circuit two-way signaling.
Described CPU processor uses 32 floating point processor TMS320F28335.
Described signal conditioning circuit also includes that position signalling processes circuit, frequency quantity signal processing circuit；Described position signalling processes circuit and is connected with CPU processor two-way signaling, and frequency quantity signal processing circuit is connected with the input one way signal of CPU processor；
Described position signalling processes in circuit and is provided with two kinds of position signalling demodulator circuits to be demodulated signals of rotating transformer, photoelectric encoder signal, and this position signalling processes circuit and uses chip ADS1205 as decoding chip；
Described on-off model processes circuit and uses TLP121GB opto-coupler chip；
Described frequency quantity signal processing circuit includes hysteresis comparator and shaping circuit, and wherein, described hysteresis comparator uses LM2903 chip, and shaping circuit uses MC74HC14AD chip.
Described telecommunication circuit also includes SPI communication circuit, RS232 telecommunication circuit；Described SPI communication circuit, CAN communication circuit, RS232 telecommunication circuit are all connected with CPU processor two-way signaling.
Described CAN communication circuit uses the proprietary transceiver of PCA82C250 of PHILIPS；
Described RS232 telecommunication circuit includes electrical level transferring chip and isolation circuit chip, and wherein, described electrical level transferring chip is MAX232AESE, and isolation circuit chip is hcpl0900.
Described drive circuit includes pwm signal drive circuit, high-power drive circuit；Described pwm signal drive circuit, high-power drive circuit are all connected with the outfan one way signal of CPU processor, and high-power drive circuit is connected with fault monitoring and protection circuit two-way signaling.
The driving chip that described pwm signal drive circuit uses is LMH6672；
The maximum output voltage of described high-power drive circuit is 24V, and maximum output current is 4A, and peak power output is 100W；Described high-power drive circuit uses BTS732GW as driving chip.
The input of described system power supply is 24V DC source, is output as ± 15V, 5V, 3.3V or 1.8V DC source, and is within it provided with reverse connection prevention protection circuit；Described system power supply uses LM2596ADJ or TPS767D318PWP power supply chip.
Compared with prior art, the invention have the benefit that
null1、A kind of general automobile controller based on modelling of the present invention devises CPU processor、System power supply、Power down delay circuit、Clock and reset circuit、Signal conditioning circuit、Telecommunication circuit、Drive circuit、DA output circuit、Fault detect protection circuit and the interconnected relationship between them，This design synthesis considers entire car controller、AMT controller、Engine controller、The hardware resource needed for interior various automobile controllers such as motor master controller，Cover its necessary all critical parts，And on each parts, reserve various types of hardware interface，Demand with satisfied different controllers，Versatility is stronger，When needs design certain controller，Only need to trigger and call corresponding hardware circuit，Need not redesign，Also without configuration many sets Special debugging equipment and corresponding drive circuit，Save development cost，Shorten the construction cycle.Therefore, versatility of the present invention is relatively strong, and the development time is shorter, and development cost is relatively low.
2, CPU processor in a kind of general automobile controller based on modelling of the present invention uses 32 floating point processor TMS320F28335, this floating point processor is powerful, can be in the rapid prototyping stage, directly run by the floating point code of auto-building model, without extra real-time simulation platform, make after the applied software development that this controller is supporting completes, just directly this controller can be put into commercialization to use, without carrying out the fixed point of code, the loaded down with trivial details work such as integrated, guarantee in whole development process, only carry out a control system hardware development, again reducing the development time, reduce development cost, simultaneously, later stage controller goes wrong and is also easier to search reason and rectification.Therefore, the present invention can support floating-point operation, can not only reduce development cost and time, and be easy to later maintenance.
3, a kind of general automobile controller based on modelling of the present invention devises the stronger multiple hardwares circuit of versatility and have employed CPU processor, this kind of hardware environment is easy to the software module storehouse developed corresponding thereto, when design controller, can directly transfer the module in this software module storehouse on platform, directly carry out exploitation based on model, without hand-written C code, it is no longer necessary to making time exploitation basic software, more time can be put into the exploitation of control strategy (application software), and work efficiency is higher.Therefore, the present invention is easy to develop the software module storehouse evading hand-written C code, and work efficiency is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the connection diagram of the present invention and outside plant.
In figure: CPU processor 1, system power supply 2, position signalling process circuit 3, AD signal processing circuit 4, on-off model process circuit 5, frequency quantity signal processing circuit 6, pwm signal drive circuit 11, SPI communication circuit 8, CAN communication circuit 9, RS232 telecommunication circuit 10, DA output circuit 7, high-power drive circuit 12, fault monitoring and protection circuit 13, power down delay circuit 14, clock and reset circuit 15.
Detailed description of the invention
Illustrate that the present invention is further detailed explanation with detailed description of the invention below in conjunction with accompanying drawing.
See Fig. 1, a kind of general automobile controller based on modelling, the CPU processor 1 including system power supply 2 and being connected electrically, signal conditioning circuit, telecommunication circuit；Described signal conditioning circuit includes that AD signal processing circuit 4, on-off model process circuit 5, and telecommunication circuit includes CAN communication circuit 9；The input of described CPU processor 1 processes circuit 5 one way signal with AD signal processing circuit 4, on-off model and is connected, and CPU processor 1 is connected with CAN communication circuit 9 two-way signaling；
Described general automobile controller also includes drive circuit, DA output circuit 7, fault detect protection circuit 13, power down delay circuit 14, clock and the reset circuit 15 electrically connected with system power supply 2；
Described CPU processor 1 is connected with fault monitoring and protection circuit 13, power down delay circuit 14 two-way signaling; the outfan of CPU processor 1 is connected with DA output circuit 7 one way signal; the input of CPU processor 1 is connected with clock and reset circuit 15 one way signal, and system power supply 2 is connected with power down delay circuit 14 two-way signaling.
Described CPU processor 1 uses 32 floating point processor TMS320F28335.
Described signal conditioning circuit also includes that position signalling processes circuit 3, frequency quantity signal processing circuit 6；Described position signalling processes circuit 3 and is connected with CPU processor 1 two-way signaling, and frequency quantity signal processing circuit 6 is connected with the input one way signal of CPU processor 1；
Described position signalling processes in circuit 3 and is provided with two kinds of position signalling demodulator circuits to be demodulated signals of rotating transformer, photoelectric encoder signal, and this position signalling processes circuit 3 and uses chip ADS1205 as decoding chip；
Described on-off model processes circuit 5 and uses TLP121GB opto-coupler chip；
Described frequency quantity signal processing circuit 6 includes hysteresis comparator and shaping circuit, and wherein, described hysteresis comparator uses LM2903 chip, and shaping circuit uses MC74HC14AD chip.
Described telecommunication circuit also includes SPI communication circuit 8, RS232 telecommunication circuit 10；Described SPI communication circuit 8, CAN communication circuit 9, RS232 telecommunication circuit 10 are all connected with CPU processor 1 two-way signaling.
The proprietary transceiver of PCA82C250 that described CAN communication circuit 9 uses PHILIPS；
Described RS232 telecommunication circuit 10 includes electrical level transferring chip and isolation circuit chip, and wherein, described electrical level transferring chip is MAX232AESE, and isolation circuit chip is hcpl0900.
Described drive circuit includes pwm signal drive circuit 11, high-power drive circuit 12；Described pwm signal drive circuit 11, high-power drive circuit 12 are all connected with the outfan one way signal of CPU processor 1, and high-power drive circuit 12 is connected with fault monitoring and protection circuit 13 two-way signaling.
The driving chip that described pwm signal drive circuit 11 uses is LMH6672；
The maximum output voltage of described high-power drive circuit 12 is 24V, and maximum output current is 4A, and peak power output is 100W；Described high-power drive circuit 12 uses BTS732GW as driving chip.
The input of described system power supply 2 is 24V DC source, is output as ± 15V, 5V, 3.3V or 1.8V DC source, and is within it provided with reverse connection prevention protection circuit；Described system power supply 2 uses LM2596ADJ or TPS767D318PWP power supply chip..
The principle of the present invention is described as follows:
The design is capable of program execution, data storage, signals collecting, signal export, communicate, diagnose defencive function, and it includes system power supply, power down delay circuit, clock and reset circuit, CPU processor, position signalling processes circuit, AD signal processing circuit, on-off model processes circuit, frequency signal processes circuit, pwm signal drive circuit, SPI communication circuit, CAN communication circuit, RS232 telecommunication circuit, DA output circuit, high-power drive circuit, fault detect protection circuit and adapter.
CPU processor: be mainly used in performing computing, storage parameter and program, it is preferable that can use and can carry out floating-point operation TMS320F28335 chip.
Clock and reset circuit: base and reseting interface when Main Function is to provide for CPU.
System power supply: Main Function is to power for controller internal circuit and external sensor; its input is 24V DC source; it is output as+15V ,-15V, 5V, 3.3V, 1.8V DC source; it is simultaneously provided with reverse connection prevention protection circuit; prevent reverse-connection damage equipment; preferably, two kinds of power supply chips of LM2596ADJ and TPS767D318PWP are used.
Power down delay circuit: Main Function is when CPU detects that ignition switch is closed, system control cpu postpones power down, can be configured as required time delay.
Position signalling processes circuit: is provided with two kinds of position signalling demodulator circuits in it, can be demodulated signals of rotating transformer and photoelectric encoder signal, obtain position and rotary speed information, it is preferred that it uses chip ADS1205 as decoding chip.
AD signal processing circuit: Main Function is in analogue signal after filtering, after pressure limiting, deliver to CPU and be AD converted.
On-off model processes circuit: Main Function is switching signal after light-coupled isolation eliminates interference, after filtering and shaping, send CPU to use, and it can process high-end switch signal, it is possible to processes low-end switch signal, it is preferred that employing TLP121GB opto-coupler chip.
Frequency quantity signal processing circuit: Main Function is to receive frequency signal, processing of circuit after filtering, compare through hysteresis comparator, eliminate signal jitter, again after shaping, give CPU process, preferably, in frequency quantity signal processing circuit, hysteresis comparator uses LM2903 chip, and shaping circuit uses MC74HC14AD chip.
Pwm signal drive circuit: Main Function is the signal level pwm signal exported by CPU, after being amplified by special Power drive integrated circuit, drives low power executor, it is preferred that its driving chip used is LMH6672.
SPI communication circuit: be mainly made up of the special SPI chip of band isolation features, it is possible to achieve the SPI communication between controller and peripheral hardware.
CAN communication circuit: use special CAN transceiver; realize the CAN communication of controller and other equipment; for improving EMC performance; use DC DC power module independently-powered, use high speed optoelectronic isolating device, transmission signal line increases decoupling capacitor over the ground; additionally reverse connecting protection diode on holding wire; inductance capacitor filtering is connect, it is preferred that use PHILIPS at egress bus
The proprietary transceiver of PCA82C250.
RS232 telecommunication circuit 10: Main Function is after controller receives RS232 signal, through level shifting circuit, convert thereof into the TTL signal of standard, after isolation circuit for eliminating interference, send CPU to use, control to be sent out signal, it is contrary that process receives signal with controller, preferably, its electrical level transferring chip used is MAX232AESE, and the isolation circuit chip of use is hcpl0900.
DA output circuit: analog voltage signal can be exported.
High-power drive circuit: can provide the 24V output of voltage 4A electric current, output, up to 100W, is used for driving executor to work, has fault feedback function simultaneously, it is preferred that it uses BTS732GW as driving chip.
Compared with traditional controller, the design has feature clearly, and the design, at hardware aspect, reserves various types of hardware interface, and with the demand of satisfied different controllers, versatility is stronger；The design uses powerful floating point processor, in the rapid prototyping stage, directly run by the floating point code of auto-building model, it is not necessary to extra real-time simulation platform, after application layer software has been developed, directly this controller can be put into commercialization to use, without carrying out the fixed point of code, the loaded down with trivial details work such as integrated, in whole development process, only carry out a control system hardware development, cost-effective, shorten the time.
Embodiment 1:
See Fig. 1, a kind of general automobile controller based on modelling, including system power supply 2 and the CPU processor 1 that is connected electrically, position signalling processes circuit 3, AD signal processing circuit 4, on-off model processes circuit 5, frequency quantity signal processing circuit 6, pwm signal drive circuit 11, SPI communication circuit 8, CAN communication circuit 9, RS232 telecommunication circuit 10, DA output circuit 7, high-power drive circuit 12, fault monitoring and protection circuit 13, power down delay circuit 14, clock and reset circuit 15, wherein, CPU processor uses 32 floating point processor TMS320F28335；
The outfan of described CPU processor 1 is connected with pwm signal drive circuit 11, DA output circuit 7, high-power drive circuit 12 one way signal; the input of CPU processor 1 processes circuit 5, frequency quantity signal processing circuit 6, clock and reset circuit 15 one way signal with AD signal processing circuit 4, on-off model and is connected, and CPU processor 1 is connected with power down delay circuit 14, position signalling process circuit 3, SPI communication circuit 8, CAN communication circuit 9, RS232 telecommunication circuit 10, fault monitoring and protection circuit 13 two-way signaling；Described system power supply 2 is connected with power down delay circuit 14 two-way signaling, and described high-power drive circuit 12 is connected with fault monitoring and protection circuit 13 two-way signaling.
See Fig. 2, when being connected with outside plant, described position signalling is processed circuit 3 and is connected with position sensor by adapter, AD signal processing circuit 4 is connected with analog sensor by adapter, on-off model is processed circuit 5 and is connected with switch by adapter, frequency quantity signal processing circuit 6 is connected with speed probe by adapter, pwm signal drive circuit 11 is connected with small-power executor by adapter, high-power drive circuit 12 is connected with high-power executor by adapter, DA output circuit 7 is connected with AD terminal by adapter, and SPI communication circuit 8, CAN communication circuit 9, RS232 telecommunication circuit 10 respectively with SPI communication facility, CAN communication facility, RS232 communications facility connects one to one.
Claims (8)
1. a general automobile controller based on modelling, the CPU processor (1) including system power supply (2) and being connected electrically, signal conditioning circuit, telecommunication circuit；Described signal conditioning circuit includes that AD signal processing circuit (4), on-off model process circuit (5), and telecommunication circuit includes CAN communication circuit (9)；The input of described CPU processor (1) processes circuit (5) one way signal with AD signal processing circuit (4), on-off model and is connected, and CPU processor (1) is connected with CAN communication circuit (9) two-way signaling, it is characterised in that:
Described general automobile controller also includes drive circuit, DA output circuit (7), fault detect protection circuit (13), power down delay circuit (14), clock and the reset circuit (15) electrically connected with system power supply (2)；
Described CPU processor (1) is connected with fault monitoring and protection circuit (13), power down delay circuit (14) two-way signaling; the outfan of CPU processor (1) is connected with DA output circuit (7) one way signal; the input of CPU processor (1) is connected with clock and reset circuit (15) one way signal, and system power supply (2) is connected with power down delay circuit (14) two-way signaling；Described CPU processor (1) uses 32 floating point processor TMS320F28335.
A kind of general automobile controller based on modelling the most according to claim 1, it is characterised in that: described signal conditioning circuit also includes that position signalling processes circuit (3), frequency quantity signal processing circuit (6)；Described position signalling processes circuit (3) and is connected with CPU processor (1) two-way signaling, and frequency quantity signal processing circuit (6) is connected with the input one way signal of CPU processor (1).
A kind of general automobile controller based on modelling the most according to claim 2, it is characterised in that:
Described position signalling is provided with two kinds of position signalling demodulator circuits to be demodulated signals of rotating transformer, photoelectric encoder signal in processing circuit (3), and this position signalling processes circuit (3) and uses chip ADS1205 as decoding chip；
Described on-off model processes circuit (5) and uses TLP121GB opto-coupler chip；
Described frequency quantity signal processing circuit (6) includes hysteresis comparator and shaping circuit, and wherein, described hysteresis comparator uses LM2903 chip, and shaping circuit uses MC74HC14AD chip.
A kind of general automobile controller based on modelling the most according to claim 1, it is characterised in that: described telecommunication circuit also includes SPI communication circuit (8), RS232 telecommunication circuit (10)；Described SPI communication circuit (8), CAN communication circuit (9), RS232 telecommunication circuit (10) are all connected with CPU processor (1) two-way signaling.
A kind of general automobile controller based on modelling the most according to claim 4, it is characterised in that:
Described CAN communication circuit (9) uses the proprietary transceiver of PCA82C250 of PHILIPS；
Described RS232 telecommunication circuit (10) includes electrical level transferring chip and isolation circuit chip, and wherein, described electrical level transferring chip is MAX232AESE, and isolation circuit chip is hcpl0900.
A kind of general automobile controller based on modelling the most according to claim 1, it is characterised in that: described drive circuit includes pwm signal drive circuit (11), high-power drive circuit (12)；Described pwm signal drive circuit (11), high-power drive circuit (12) all outfan one way signals with CPU processor (1) are connected, and high-power drive circuit (12) is connected with fault monitoring and protection circuit (13) two-way signaling.
A kind of general automobile controller based on modelling the most according to claim 6, it is characterised in that:
The driving chip that described pwm signal drive circuit (11) uses is LMH6672；
The maximum output voltage of described high-power drive circuit (12) is 24V, and maximum output current is 4A, and peak power output is 100W；Described high-power drive circuit (12) uses BTS732GW as driving chip.
A kind of general automobile controller based on modelling the most according to claim 1; it is characterized in that: the input of described system power supply (2) is 24V DC source; it is output as ± 15V, 5V, 3.3V or 1.8V DC source, and is within it provided with reverse connection prevention protection circuit；Described system power supply (2) uses LM2596ADJ or TPS767D318PWP power supply chip.
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| CN105791025B (en) * | 2016-04-19 | 2019-09-06 | 奇瑞汽车股份有限公司 | A kind of automotive networking communication system forward design method |
| CN108268293B (en) * | 2016-12-29 | 2021-11-02 | 广东中科遥感技术有限公司 | Method for demonstrating rapid prototype of mobile APP |
| CN108255098A (en) * | 2017-12-12 | 2018-07-06 | 贵州航天控制技术有限公司 | Servo mechanism feedback control circuit and CAN bus communication means based on bus |
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| US7778750B2 (en) * | 2002-02-25 | 2010-08-17 | Cummins Inc. | Vehicle communications network adapter |
| CN201142019Y (en) * | 2007-12-06 | 2008-10-29 | 武汉理工大学 | Universal module used for passenger car vehicle-mounted network and information integration control system |
| CN102019888A (en) * | 2009-09-10 | 2011-04-20 | 上海海马汽车研发有限公司 | Controller and control method of pure electric vehicle |
| US20120229268A1 (en) * | 2011-03-11 | 2012-09-13 | GM Global Technology Operations LLC | Method and apparatus for vehicular direction indication |
| CN202624121U (en) * | 2012-06-27 | 2012-12-26 | 国威科技有限公司 | Vehicle body control module |
| CN204077574U (en) * | 2014-09-05 | 2015-01-07 | 东风商用车有限公司 | A kind of general automobile controller based on pattern layout |
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