CN201063102Y - Controller of vehicle ABS system - Google Patents
Controller of vehicle ABS system Download PDFInfo
- Publication number
- CN201063102Y CN201063102Y CNU2007200398902U CN200720039890U CN201063102Y CN 201063102 Y CN201063102 Y CN 201063102Y CN U2007200398902 U CNU2007200398902 U CN U2007200398902U CN 200720039890 U CN200720039890 U CN 200720039890U CN 201063102 Y CN201063102 Y CN 201063102Y
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- CN
- China
- Prior art keywords
- power supply
- power source
- module
- tandem
- multivibrator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Regulating Braking Force (AREA)
- Safety Devices In Control Systems (AREA)
- Debugging And Monitoring (AREA)
Abstract
The utility model discloses an automobile ABS system controller used in an automobile ABS system. An output end of an 87C196KC microcontroller of the controller is tandemed with one end of a magnetic valve through audion, and a power source end of a multivibrator and a power source end of a power source controlling module are tandemed with a positive electrode of automobile power source; besides, a feedback end of the multivibrator and power source are tandemed with a power source input of a watchdog module and an output end of the power source controlling module, or an input end a non-gate input end is tandemed with an output end of the multivibrator, or the other non-gate input end is tandemed with the power source and a controlling end of the watchdog module, or a non-gate output is tandemed with an input end of the power source controlling module. Since the structure of the multivibrator or a non-gate circuit is adopted, the utility model can be electrified automatically for restoration when the software goes wrong, thus improving antijamming ability of the automobile ABS system, causing the automobile ABS system to work stably and reliably and guaranteeing the safe driving of vehicles.
Description
Technical field
The utility model relates to a kind of circuit control device of automobile ABS system.
Background technology
Automobile ABS system is the typical monolithic processor controlled closed-loop control system of using.In order to improve the reliability of software, generally adopted the house dog measure.In order to prevent that the CPU hardware damage from causing disaster, the part system has adopted and has had WDT and lose the special module by the ABS of function.Because of two cover system parallel runnings, occur often flying the phenomenon that causes hardware to end because of software runs, the ABS system is quit work.
Known automobile ABS system circuit control device as shown in Figure 1.This device is after power supply electrifying, and power supply and watchdog module 3 outputs are exported reset signal one time simultaneously for single-chip microcomputer 7 work usefulness+5V power supplys.Single-chip microcomputer 7 resets when the back is normal to be moved, and exports a series of WDTs.Power supply and watchdog module 3 send signal and make 8 conductings of power supply controlled stage module under the normal situation of WDT, make solenoid valve 9 obtain operating voltage, and the ABS system can carry out work.If Single Chip Microcomputer (SCM) program is run and is flown, single-chip microcomputer 7 stops to export WDT, power supply and watchdog module 3 after can not get several WDTs with automatic cut-off to power supply controlled stage module 8 output signals, power supply controlled stage module 8 is ended, make solenoid valve 9 lose the operate as normal required voltage, the ABS system quits work.Alarm lamp 2 is bright automatically.Power supply and watchdog module 3 only re-power and could remove cut-off state by after power supply controlled stage module 8 output signals, and automobile ABS system can recover normally, and it is relatively poor that this shows the automobile ABS system antijamming capability.
The working environment of car electrics is very abominable, and the high-tension ignition of gasoline engine is very serious to the interference of vehicle, and the interference free performance that improves the ABS system works is very important to guaranteeing safety traffic.
Summary of the invention
The purpose of this utility model is that a kind of automobile ABS system controller will be provided, and this controller runs recoverys that can power on automatically when flying fault, the antijamming capability of raising ABS system at software.
The purpose of this utility model is achieved in that this controller comprises the 87C196KC single-chip microcomputer, the output terminal of single-chip microcomputer is by triode and solenoid valve one end tandem, the output terminal tandem of the solenoid valve other end and power supply controlled stage module, the WDT end of single-chip microcomputer and power supply and the tandem of watchdog module signal end, the reset signal end tandem of the reset signal end of single-chip microcomputer and power supply and watchdog module, the positive pole of automobile power source links to each other by alarm lamp with the warning end of watchdog module with power supply, the power end of multivibrator, the power end of power supply controlled stage module and the anodal tandem of automobile power source, the feedback end of multivibrator, the power input of power supply and watchdog module and the tandem of power supply controlled stage module output terminal, the input end of rejection gate and the output terminal tandem of multivibrator, the control end tandem of another input end of rejection gate and power supply and watchdog module, the input end tandem of the output terminal of rejection gate and power supply controlled stage module.
The utility model has adopted the circuit structure with multivibrator and rejection gate, runs the recovery that can power on automatically when flying fault at software, has improved the antijamming capability of automobile ABS system, makes the automobile ABS system working stability reliable, has ensured vehicle safe driving.
Description of drawings
Fig. 1 is the control circuit synoptic diagram of known automobile ABS system.
Fig. 2 is the control circuit synoptic diagram of an embodiment of the utility model.
Embodiment
In Fig. 2, this controller comprises 87C196KC single-chip microcomputer 7, and the output terminal C8 pin of single-chip microcomputer 7 is by triode V1 and solenoid valve 9 one end tandems, output terminal 1 pin of solenoid valve 9 other ends and power supply controlled stage module 8 and 5 pin tandems.The C8 pin of single-chip microcomputer 7 is output terminal to C15, and each output terminal is output terminal 1 pin and the 5 pin tandems by a triode and solenoid valve and power supply controlled stage module 8 all.The output terminal D15 pin and the D17 pin of single-chip microcomputer 7 are connected to crystal oscillator 4.
The signal end 10 pin tandems of the WDT end WO of single-chip microcomputer 7 and power supply and watchdog module 3, reset signal end 8 tandems of the reset signal end RST of single-chip microcomputer 7 and power supply and watchdog module 3.The positive pole of automobile power source 1 links to each other by alarm lamp 2 with the warning end SILA of watchdog module 3 with power supply.
Power end 3 pin of the power end Vcc of multivibrator 5, power supply controlled stage module 8 and the anodal tandem of automobile power source 1, power input 1 pin of feedback end DIS pin, power supply and the watchdog module 3 of multivibrator 5 and output terminal 1 pin of power supply controlled stage module 8 and 5 pin tandems.The input end of rejection gate 6 and the output terminal 0 pin tandem of multivibrator 5, the control end 2 pin tandems of rejection gate 6 another input ends and power supply and watchdog module 3, input end 2 pin of the output terminal of rejection gate 6 and power supply controlled stage module 8 and 4 pin tandems.
After power supply electrifying, automobile power source 1 is directly powered to multivibrator 5, sends signal after multivibrator 5 starting of oscillations and makes 8 conductings of power supply controlled stage module through rejection gate 6.Power input 1 pin of power supply and watchdog module 3 is to be connected on output terminal 1 pin of power supply controlled stage module 8 and 5 pin, after 8 conductings of power supply controlled stage module, power supply and watchdog module 3 get electric output confession single-chip microcomputer 7 work usefulness+5V power supply, export reset signal simultaneously one time.Single-chip microcomputer 8 resets when the back is normal to be moved, and exports a series of WDTs.Power supply and watchdog module 3 send signal and make 8 conductings of power supply controlled stage module under the normal situation of WDT, 5 effect failures of oscillations of multivibrator because of feedback end DIS, the 8 later conductings of power supply controlled stage module are to be kept by rejection gate 6 by the signal of power supply and watchdog module 3 outputs, make solenoid valve obtain operating voltage, the ABS system can carry out work.
If Single Chip Microcomputer (SCM) program is run and is flown, single-chip microcomputer 7 stops to export WDT, power supply and watchdog module 3 after can not get several WDTs with automatic cut-off to power supply controlled stage module 8 output signals, power supply controlled stage module 8 is ended, make solenoid valve lose the operate as normal required voltage, the ABS system quits work.Alarm lamp 2 is bright automatically.Make power supply and watchdog module 3 power down simultaneously.This moment multivibrator 5 feedback end DIS loss signal, multivibrator 5 is resumed work, and makes it conducting to power supply controlled stage module 8 output signals, power supply and watchdog module 3 re-power the releasing cut-off state.The ABS system recovery is normal.
Claims (1)
1. automobile ABS system controller, this controller comprises the 87C196KC single-chip microcomputer, the output terminal of single-chip microcomputer is by triode and solenoid valve one end tandem, the output terminal tandem of the solenoid valve other end and power supply controlled stage module, the WDT end of single-chip microcomputer and power supply and the tandem of watchdog module signal end, the reset signal end tandem of the reset signal end of single-chip microcomputer and power supply and watchdog module, the positive pole of automobile power source links to each other by alarm lamp with the warning end of watchdog module with power supply, the power end that it is characterized in that multivibrator, the power end of power supply controlled stage module and the anodal tandem of automobile power source, the feedback end of multivibrator, the output terminal tandem of the power input of power supply and watchdog module and power supply controlled stage module, the input end of rejection gate and the output terminal tandem of multivibrator, the control end tandem of another input end of rejection gate and power supply and watchdog module, the input end tandem of the output terminal of rejection gate and power supply controlled stage module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200398902U CN201063102Y (en) | 2007-06-15 | 2007-06-15 | Controller of vehicle ABS system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200398902U CN201063102Y (en) | 2007-06-15 | 2007-06-15 | Controller of vehicle ABS system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201063102Y true CN201063102Y (en) | 2008-05-21 |
Family
ID=39451485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200398902U Expired - Fee Related CN201063102Y (en) | 2007-06-15 | 2007-06-15 | Controller of vehicle ABS system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201063102Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207568A (en) * | 2014-06-05 | 2015-12-30 | 联创汽车电子有限公司 | Motor bypass control circuit and control method |
-
2007
- 2007-06-15 CN CNU2007200398902U patent/CN201063102Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207568A (en) * | 2014-06-05 | 2015-12-30 | 联创汽车电子有限公司 | Motor bypass control circuit and control method |
| CN105207568B (en) * | 2014-06-05 | 2018-01-09 | 联创汽车电子有限公司 | motor bypass control circuit and control method |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080521 Termination date: 20160615 |