CN202003221U - Vehicle-mounted central controller - Google Patents
Vehicle-mounted central controller Download PDFInfo
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- CN202003221U CN202003221U CN2011201146407U CN201120114640U CN202003221U CN 202003221 U CN202003221 U CN 202003221U CN 2011201146407 U CN2011201146407 U CN 2011201146407U CN 201120114640 U CN201120114640 U CN 201120114640U CN 202003221 U CN202003221 U CN 202003221U
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Abstract
The utility model relates to a vehicle-mounted central controller, which comprises a processor, a memory, an address latch, a bus interface circuit, an external input signal acquisition circuit, an output signal control circuit and an auxiliary circuit, wherein a power switch device is utilized to replace a relay for directly driving a high-power electrical appliance, thereby realizing the function of diagnosing the related electrical appliance; furthermore, a notebook computer equipped with special diagnosis software can be adopted for replacing a special diagnosis device, and a USB (universal serial bus) interface can be used for realizing the downloading of on-line programmed application software, the setting of vehicle parameters, the on-line diagnosis and other functions. The vehicle-mounted central controller, an external signal acquisition part, an external controlled part and a touch screen form an application platform of a vehicle control system, and secondary development on application programs can be performed in a targeted manner according to different vehicle types or different demands, thereby solving the difficult problem in the conventional vehicles that different controllers need to be developed independently and different control software needs to be configured for the vehicle types with different configurations and avoiding the waste of a large quantity of manpower and financial resources.
Description
Technical field
The utility model relates to a kind of automotive controls, specifically a kind of vehicle-mounted central controller.
Background technology
Along with the production technology of Domestic Automotive Industry constantly develops, automotive electronicsization is considered to the revolution in the automotive engineering development process, be to be used for developing new model, improve the most important technical measures of automotive performance, the degree of automotive electronicsization is counted as the important symbol of weighing the Hyundai Motor level.The automaker thinks increases the quantity of vehicle electronics, promote that automotive electronicsization is to capture the important effective means of following automobile market.According to statistics, electronics installation cost shared ratio in whole automobile making cost improves gradually on this each car of several annuals, even the electronic product cost on some high-end vehicles accounts for more than 50% of integral vehicle cost, and the application of electronic technology at present almost has been deep into all systems of automobile.The industrialization of automobile electronics has become the auto industry new growth engines.
The central controller of domestic motor market and the application of instrument at present mainly contains following two kinds:
(1) the separate type control mode of body electronics and electromechanical instrument.This mode is that body electronics is divided into several unit, control its operation separately, necessary and a spot of data message in the automobilism can only be provided, also can't accomplish whole automatic diagnosis, can not satisfy the requirement of Hyundai Motor new technology, high-speed development far away its fault.
(2) based on the sensor of CAN bus and the body electronics and the electronic instrument of display device formation.The CAN bus can be together information integrated with engine control module (ECU), transmission control module (TCU), air bag controlled module, anti-lock braking system (ABS), antiskid control system numerous control modules such as (ASR), can realize information sharing between each control module, reduce unnecessary wire harness and sensor, on the basis of improving reliability, reduced integral vehicle cost.But, because the interface standard of present vehicle-mounted central controller and instrument is single and not at secondary development, so not only restricted development and the raising of China automobile enterprise aspect body electronics, and can not wide popularization and application.
The utility model content
At above-mentioned deficiency, the utility model provides a kind of vehicle-mounted central controller, to solve the different vehicle of each configuration that automobile exists at present, all need the different controller of exploitation separately and dispose the difficult problem of different Control Software, avoided the waste of great amount of manpower, financial resources.
The technical scheme in the invention for solving the technical problem is: vehicle-mounted central controller, comprise processor, storer, bus interface circuit, the external input signal Acquisition Circuit, output signal control circuit and auxiliary circuit, it is characterized in that, described storer comprises the SRAM storer and stores the FLASH storer of application program, described bus interface circuit comprises the CAN1 bus interface circuit, the CAN2 bus interface circuit, K bus interface circuit and usb bus interface circuit, described external input signal Acquisition Circuit comprises digital signal acquiring circuit and collection of simulant signal circuit;
Wherein, described processor is connected with auxiliary circuit with SRAM storer, FLASH storer, address latch, CAN1 bus interface circuit, CAN2 bus interface circuit, K bus interface circuit, usb bus interface circuit, digital signal acquiring circuit, collection of simulant signal circuit, output signal control circuit respectively.
Also comprise address latch, described address latch is connected with the SRAM storer with processor respectively.
Described processor is a general purpose microprocessor.
Described output signal control circuit comprises in order to substitute the device for power switching that traditional relay drives high-power electric appliance.
Described usb bus interface circuit is connected with the notebook computer that separate diagnostic software is installed, in order to vehicle-mounted central controller is carried out online programming, parameter setting and inline diagnosis.
Described auxiliary circuit comprises power circuit, power reset circuit and power supply wake-up circuit at least.
The application software of described FLASH memory stores is based on that the visual programming language of IEC61131-3 standard realizes, can carry out the online programming operation.
This is mounted with the vehicle-mounted central controller of application software, form the automotive control system application platform with external signal acquisition component, outside controlled part, online programming device and combination instrument, can carry out secondary development targetedly to using software according to different automobile types or demand.Central controller is connected with the external signal acquisition component that is used to detect automobile performer state by the external input signal Acquisition Circuit, be connected with the outside controlled assembly that is used to control the performer state by the output signal control circuit, connect combination instrument by the CAN bus; The online programming device is used on the car load production line vehicle-mounted central controller carried out online programming and parameter setting.This vehicle-mounted central controller is connected by the notebook computer of USB interface with the equipped separate diagnostic software that replaces dedicated diagnostic device, uses USB interface, realizes the download of online programming application software, and functions such as the setting of vehicle parameter and inline diagnosis.Adopt the notebook computer of equipped separate diagnostic software to replace diagnostic device, not only connected mode is simple, application is convenient, and has saved the expensive expense of purchasing dedicated diagnostic device.
The beneficial effects of the utility model are:
1) extensibility height: this vehicle-mounted central controller adopts the embedded software mode at different automobile types configuration employing corresponding application software, has realized that the vehicle-mounted central controller of a kind of model can satisfy the demand of a multiple different automobile types of series;
2) adopted device for power switching to replace relay directly to drive high-power electric appliance: to forgo and adopted the relay type of drive, thereby realized the diagnostic function of relevant electrical equipment, and reduced the vehicle cost for high-power electric appliances such as high beams;
3) novelty used the USB technology first in the Vehicle Electronic Control field: use USB interface, realize the online download of application software, and functions such as the setting of vehicle parameter and inline diagnosis, the service station can adopt the notebook computer of equipped separate diagnostic software to replace dedicated diagnostic device, can save expensive diagnostic device acquisition expenses for the service station, save great amount of cost, bring great economic benefit to society;
4) the automotive control system application platform that is made of this vehicle-mounted central controller has adopted the vehicle-mounted central controller application software development platform based on the IEC61131 international standard: can be at the difference in functionality and the demand of different automobile types, work out different logic and Control Software, realize the function expansion of this platform on different automobile types, and adopt the visual programming interface, reduced the development difficulty of central controller software, shorten the construction cycle, reduced cost of development;
5) fault diagnosis and the defencive function of vehicle electric element have been realized: the device for power switching that has diagnostic function by employing, realization is to fault diagnosis functions such as the short circuit of vehicle electric element, open circuit, overloads, not only diagnostic message can be read when vehicle maintenance, and can turn-off power switch when occurring in critical failure (as short circuit, overload etc.), with protection vehicle accumulator and other circuit;
6) reduced the car load production cost:, reduced wire harness quantity by adopting the CAN bus; By adopting device for power switching, reduced car load relay quantity; By setting the mode of K value, omitted the working link of adjusting the vehicle speed sensor speed ratio, therefore under the prerequisite that vehicle performance improves, reduced the automobile production cost effectively.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified:
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the structured flowchart of the utility model one embodiment.
Embodiment
As shown in Figure 1, the vehicle-mounted central controller of this kind, comprise general purpose microprocessor, the SRAM storer, store the FLASH storer of application software, the CAN1 bus interface circuit, the CAN2 bus interface circuit, the K bus interface circuit, the usb bus interface circuit, digital signal acquiring circuit, the collection of simulant signal circuit, the output signal control circuit, address latch and auxiliary circuit, wherein, described processor respectively with the SRAM storer, the FLASH storer, the CAN1 bus interface circuit, the CAN2 bus interface circuit, the K bus interface circuit, the usb bus interface circuit, digital signal acquiring circuit, the collection of simulant signal circuit, the output signal control circuit, address latch is connected with auxiliary circuit; Described address latch is connected with the SRAM storer with processor respectively; Described auxiliary circuit comprises power circuit, power reset circuit and power supply wake-up circuit at least; Described output signal control circuit comprises device for power switching, directly drives high-power electric appliance in order to replace relay, thereby realizes the diagnostic function to relevant electrical equipment.
Fig. 2 is the structured flowchart of the utility model one embodiment, and as shown in Figure 2, this vehicle-mounted central controller is connected with diagnostic device with external signal acquisition component, outside controlled part, online programming device, CAN1 bus, CAN2 bus, K bus respectively.This vehicle-mounted central controller and external signal acquisition component, outside controlled part, online programming device and combination instrument that is mounted with application software forms the automotive control system application platform, central controller is connected with the external signal acquisition component that is used to detect automobile performer state by the external input signal Acquisition Circuit, be connected with the outside controlled assembly that is used to control the performer state by the output signal control circuit, connect combination instrument by the CAN bus.This vehicle-mounted central controller is connected with diagnostic device by USB interface, realizes the online download of application software, and functions such as the setting of vehicle parameter and inline diagnosis.Diagnostic device can adopt the notebook computer of equipped separate diagnostic software, connected mode is simple, application is convenient, not only can realize reading of information such as historical failure inquiry, the removing of historical failure sign indicating number, vehicle VIN sign indicating number and distance travelled, and when exchange device more, realize the function that distance travelled writes again, and saved the expensive expense of purchasing dedicated diagnostic device.
Based on the design of the hardware circuit of the vehicle-mounted central controller of selected vehicle series, use the development environment of its microcontroller MCU, can carry out secondary development at different automobile types.
The overall characteristic of this vehicle-mounted central controller is as follows:
1) operating voltage: 18V-32V;
2) working temperature :-30 ℃-75 ℃;
3) degree of protection: IP30;
4) 6 road 24V power supplies;
5) 1 road usb bus;
6) 2 tunnel CAN buses that meet SAE J1939 standard;
7) 1 tunnel K bus that meets the KWP2000 standard;
8) 70 road input interface signals;
9) 42 road output interface signals;
10) adopted application software development platform based on the IEC61131 standard, its application software adopts visual high-level programming language to develop, can carry out self-defined steering logic and various parameter setting according to the difference configuration of selected vehicle, realize fast the application extension of vehicle-mounted central controller, and support total online download and utilize the on-line debugging function of means such as download, emulation, supervision in this vehicle;
11) adopt online programming function, the parameter of usb bus that function, diagnostic function are set.
The application development platform of this vehicle-mounted central controller, use debugging methods such as download, emulation, breakpoint, supervision, data analysis, realize the complete function of the car load electrical equipment central authorities control of specific vehicle, and at the difference in functionality and the demand of this serial different automobile types, work out different logic and Control Software, realize the function expansion of development platform on different automobile types of vehicle-mounted central controller; The software of vehicle-mounted central controller is divided into three layers, is respectively: the upper strata is that development platform layer, middle layer are that real-time system layer, bottom are the drive controlling layer.
Wherein, the upper strata is the control program that is used IEC61131 standard program language compilation by the user, and middle layer and bottom software are the software at vehicle-mounted central controller hardware internal operation; At each operational module (as light, rain brush, door and window, bus, instrument, diagnosis etc.) write the control program of response, through the compiling after, download among the microcontroller MCU of vehicle-mounted central controller.
The middle layer comprises modules such as real-time system, Control on Communication, multitasking, memory management, realize download, debugging, storage, explanation and the execution of upper layer software (applications) control program, input information, execution result put into specified memory and the bottom layer driving key-course carries out exchanges data.
The drive controlling of the input signal of the vehicle-mounted central controller of bottom layer realization, output signal, bus signals, diagnostic signal and security control etc.
This vehicle-mounted central controller and application development platform thereof have used the USB technology in the Vehicle Electronic Control field first innovatively, not only carry out centralized control based on multiple bus mode, and have favorable compatibility and extended capability.
Claims (6)
1. vehicle-mounted central controller, comprise processor, storer, bus interface circuit, external input signal Acquisition Circuit, output signal control circuit and auxiliary circuit, it is characterized in that, described storer comprises the SRAM storer and stores the FLASH storer of application software, described bus interface circuit comprises CAN1 bus interface circuit, CAN2 bus interface circuit, K bus interface circuit and usb bus interface circuit, and described external input signal Acquisition Circuit comprises digital signal acquiring circuit and collection of simulant signal circuit;
Wherein, described processor is connected with auxiliary circuit with SRAM storer, FLASH storer, address latch, CAN1 bus interface circuit, CAN2 bus interface circuit, K bus interface circuit, usb bus interface circuit, digital signal acquiring circuit, collection of simulant signal circuit, output signal control circuit respectively.
2. vehicle-mounted central controller according to claim 1 is characterized in that, also comprises address latch, and described address latch is connected with the SRAM storer with processor respectively.
3. vehicle-mounted central controller according to claim 1 and 2 is characterized in that, described processor is a general purpose microprocessor.
4. vehicle-mounted central controller according to claim 1 and 2 is characterized in that, described output signal control circuit comprises in order to substitute the device for power switching that traditional relay drives high-power electric appliance.
5. vehicle-mounted central controller according to claim 1 and 2 is characterized in that, described usb bus interface circuit is connected with the notebook computer that separate diagnostic software is installed, in order to vehicle-mounted central controller is carried out online programming, parameter setting and inline diagnosis.
6. vehicle-mounted central controller according to claim 1 and 2 is characterized in that, described auxiliary circuit comprises power circuit, power reset circuit and power supply wake-up circuit at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201146407U CN202003221U (en) | 2011-04-19 | 2011-04-19 | Vehicle-mounted central controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201146407U CN202003221U (en) | 2011-04-19 | 2011-04-19 | Vehicle-mounted central controller |
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| Publication Number | Publication Date |
|---|---|
| CN202003221U true CN202003221U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201146407U Expired - Fee Related CN202003221U (en) | 2011-04-19 | 2011-04-19 | Vehicle-mounted central controller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211555A (en) * | 2011-04-19 | 2011-10-12 | 吴天文 | Vehicle-mounted central controller |
| CN103465840A (en) * | 2012-06-06 | 2013-12-25 | 北汽福田汽车股份有限公司 | Automobile control method, control device and automobile with control device |
| CN106708012A (en) * | 2016-12-05 | 2017-05-24 | 深圳市元征科技股份有限公司 | Secondary development method and device for diagnostic device |
-
2011
- 2011-04-19 CN CN2011201146407U patent/CN202003221U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211555A (en) * | 2011-04-19 | 2011-10-12 | 吴天文 | Vehicle-mounted central controller |
| CN103465840A (en) * | 2012-06-06 | 2013-12-25 | 北汽福田汽车股份有限公司 | Automobile control method, control device and automobile with control device |
| CN103465840B (en) * | 2012-06-06 | 2015-08-12 | 北汽福田汽车股份有限公司 | Automobile control method, control setup and there is the automobile of this control setup |
| CN106708012A (en) * | 2016-12-05 | 2017-05-24 | 深圳市元征科技股份有限公司 | Secondary development method and device for diagnostic device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20170419 |
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| CF01 | Termination of patent right due to non-payment of annual fee |