CN209581376U - A kind of automobile controller power supply holding circuit - Google Patents
A kind of automobile controller power supply holding circuit Download PDFInfo
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- CN209581376U CN209581376U CN201822117844.0U CN201822117844U CN209581376U CN 209581376 U CN209581376 U CN 209581376U CN 201822117844 U CN201822117844 U CN 201822117844U CN 209581376 U CN209581376 U CN 209581376U
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- automobile controller
- effect transistor
- digital switch
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Abstract
The utility model relates to a kind of automobile controller power supply holding circuits, including vehicular power-bottle, the first filter circuit module, the first P-channel field-effect transistor (PEFT) transistor, the first overvoltage crowbar module, automobile controller, wake-up source module, the second filter circuit module, the first digital switch, first switch signal acquisition circuit module, third filter circuit module, the second P-channel field-effect transistor (PEFT) transistor, the second overvoltage crowbar module, flash drive circuit module, the second digital switch and second switch signal acquisition circuit module.Automobile controller is the important composition unit for guaranteeing vehicle and operating normally; normal operation of the controller power source holding circuit in addition to guaranteeing power-supply system; when digital switch breaks down; it needs to be diagnosed to be in time; and make corresponding Preservation tactics; so that controller power source holding circuit still can provide power supply after breaking down for vehicle, guarantee the safety of personnel.
Description
Technical field
The utility model belongs to field of new energy technologies, particularly relates to a kind of automobile controller power supply holding circuit.
Background technique
Recently as being constantly progressive for science and technology, electric car has a significant progress, and Development of EV can be with
Optimize energy consumption structure, it is possible to reduce the atmosphere pollution of urban transportation.
The power source of automobile controller is based on vehicular power-bottle, by power cell of vehicle in driving process, by power supply
Decompression converting circuit charges to vehicular power-bottle.When car key extract when, vehicular power-bottle can power off suddenly, automobile controller also because
Have little time to store related data, such as battery capacity, remaining mileage etc. for power-off excessive velocities, when causing start next time, vehicle
Data exception, can not show normal vehicle data.Set forth herein a kind of circuits for extending the power cut-off time, complete automobile
The needs of hardware circuit of controller power source holding circuit is developed, and controller saves data when meeting electric car power-off.
Utility model content
The purpose of the utility model is to provide a kind of automobile controller power supply holding circuits, when solving electric car power-off
Wait the demand that controller saves data.
The utility model is achieved through the following technical solutions:
A kind of automobile controller power supply holding circuit, including power supply are filtered with the first filter circuit module and third respectively
Circuit connection；
Source module is waken up to connect with the second filter circuit；
The source electrode of first field effect transistor is connect with first filter circuit module, the leakage of the first field effect transistor
Pole is connect with the first overvoltage crowbar module, and the grid of the first field effect transistor is connect with the first digital switch；
First overvoltage crowbar module is connect with automobile controller；
Second filter circuit module is connect with the first digital switch and second digital switch respectively；
First digital switch is connected with first switch signal acquisition circuit and ground line respectively；
First switch signal acquisition circuit module is connect with the automobile controller；
Second digital switch is connect by second switch signal acquisition circuit module with the automobile controller；
The source electrode of second field effect transistor is connect with the third filter circuit module, the leakage of the second field effect transistor
Pole is connect with the second overvoltage crowbar module, and the grid of the second field effect transistor is connect with the second digital switch；
Second digital switch is connected with second switch signal acquisition circuit module and ground line respectively；
The second overvoltage crowbar module is connect with flash drive circuit module.
The power supply is vehicular power-bottle.
First filter circuit module and third filter circuit module include power supply reverse connection protection diode, TVS pipe and
Electrolytic capacitor.
The third filter circuit module includes multiple capacitors and voltage clamp circuit.
First field effect transistor and the second field effect transistor are P-channel field-effect transistor (PEFT) transistor.
The first overvoltage crowbar module and the second overvoltage crowbar module include multiple capacitors and Zener two
Pole pipe.
First digital switch and the second digital switch are the digital switch with current feedback.
The wake-up source module is key module, fast charge starting module, trickle charge starting module, Remote Wake Up module, battery
One of thermal runaway wake-up module or more than one.
The beneficial effects of the utility model are:
The operation of controller power source holding circuit inputs, the stabilization of digital switch by the digital switch of electronic component
Property it is most important, automobile controller be guarantee vehicle operate normally important composition unit, controller power source holding circuit in addition to
The normal operation for guaranteeing power-supply system needs to be diagnosed to be in time when digital switch breaks down, and makes corresponding protection plan
Slightly, so that controller power source holding circuit still can provide power supply after breaking down for vehicle, guarantee the safety of personnel.
Detailed description of the invention
Fig. 1 is automobile controller power supply holding circuit schematic illustration.
Description of symbols
1, vehicular power-bottle；2, the first filter circuit module；3, the first P-channel field-effect transistor (PEFT) transistor；4, the first overvoltage protection
Circuit module；5, automobile controller；6, source module is waken up；7, the second filter circuit module；8, the first digital switch；9, it first opens
OFF signal acquisition circuit module；10, third filter circuit module；11, the second P-channel field-effect transistor (PEFT) transistor；12, the second over-voltage is protected
Protection circuit module；13, flash drive circuit module；14, the second digital switch；15, second switch signal acquisition circuit module.
Specific embodiment
The technical solution of the utility model is described in detail by the following examples, embodiment below is only exemplary
, it is only capable of for explanation and illustration the technical solution of the utility model, and it is not to be construed as limitations of the present invention.
The application provides a kind of automobile controller power supply holding circuit, as shown in Figure 1:
The power supply of the application is vehicular power-bottle 1, is the first filter circuit module 2 and third filter circuit module by conducting wire
10 connections.
First filter circuit module 2 includes power supply reverse connection protection diode, TVS pipe and electrolytic capacitor, is applied to vehicular power-bottle 1
Between the first P-channel field-effect transistor (PEFT) transistor 3.
The source electrode of first P-channel field-effect transistor (PEFT) transistor 3 is connect with the first filter circuit module 2, and drain electrode is protected with the first over-voltage
Protection circuit module 4 connects, and grid is connect with the first digital switch 8.
First overvoltage crowbar module 4 includes multiple capacitors and Zener diode, and it is brilliant to be applied to the first P-channel field-effect transistor (PEFT)
Between the 5 of body pipe 3 and automobile controller.
The wake-up source module 6 is key module, fast charge starting module, trickle charge starting module, Remote Wake Up module, battery
One of thermal runaway wake-up module or more than one.
Second filter circuit module 7 includes multiple capacitors and voltage clamp circuit, is applied to wake up source module 6 and the first number
Between word switch 8.
First digital switch 8 is that the digital switch circuit with current feedback is separately connected first switch signal acquisition circuit
Module 9 and ground line when wake source accesses, guarantee the grounded-grid of the first P-channel field-effect transistor (PEFT) transistor.
First switch signal acquisition circuit module 9 is that signal conditioning circuit connects A/D (Analog-digital Converter) circuit, will be adopted
The analog quantity collected is converted to digital quantity and is sent to automobile controller 5.
Third filter circuit module 10 includes power supply reverse connection protection diode, TVS pipe and electrolytic capacitor, is applied to vehicle mounted electric
Between bottle 1 and the second P-channel field-effect transistor (PEFT) transistor 11.
The source electrode of second P-channel field-effect transistor (PEFT) transistor 11 is connect with third filter circuit module 10, drain electrode and the second over-voltage
Circuit module 12 is protected to connect, grid is connect with the second digital switch 14.
Second overprotection circuit module 12 includes multiple capacitors and Zener diode, is applied to the second P-channel field-effect transistor (PEFT)
Between transistor 11 and flash drive circuit module 13.
Second digital switch 14 is that the digital switch circuit with current feedback is separately connected second switch signal acquisition electricity
Road module 15 and ground line when wake source accesses, guarantee the grounded-grid of the second P-channel field-effect transistor (PEFT) transistor.
Second switch signal acquisition circuit module 15 is that signal conditioning circuit connects A/D (Analog-digital Converter) circuit, will
Collected analog quantity is converted to digital quantity and is sent to automobile controller 5.
The working principle of controller power source holding circuit are as follows:
Automobile controller power supply holding circuit triggers the first digital switch simultaneously by external wake source and the second number is opened
It closes, so that the grid and source conduction of the first P-channel field-effect transistor (PEFT) transistor and the second P-channel field-effect transistor (PEFT) transistor, vehicular power-bottle
Power supply passes through the first overvoltage crowbar respectively and the second overvoltage crowbar provides for automobile controller and flash driving circuit
Power supply.The first digital switch and the second digital switch output signal are input to automobile control by signal processing circuit simultaneously
Device processed, controller change integrated vehicle control tactics, the effective peace for improving electric car by the variable condition of detection switch signal
Congruent grade.
In electric car operational process, first switch signal acquisition circuit recognize the first digital switch temperature it is excessively high or
When person's electric current is excessive, by current feedback, automobile controller A/D (analog-to-digital conversion circuit) circuit detects current feedback values
When changing, the lower external loading of priority level is turned off, power is reduced, to guarantee automobile controller in low function
The lower safe operation of consumption.
Current feedback values are analog signals, and software completes signal processing using median filtering method, that is, are acquired signal 10 times,
Averaged after removal maximin.
Utility model has been described in detail by way of a preferred embodiment.However, by studying carefully above,
Variation and increase to each embodiment are also apparent to those of ordinary skill in the art.It is intended that institute
There are these variations and increase to fall within the scope protected by the claims of this utility model.
Claims (8)
1. a kind of automobile controller power supply holding circuit, which is characterized in that including power supply, respectively with the first filter circuit module and
The connection of third filter circuit；
Source module is waken up to connect with the second filter circuit；
The source electrode of first field effect transistor is connect with first filter circuit module, the drain electrode of the first field effect transistor with
The connection of first overvoltage crowbar module, the grid of the first field effect transistor are connect with the first digital switch；
First overvoltage crowbar module is connect with automobile controller；
Second filter circuit module is connect with the first digital switch and the second digital switch respectively；
First digital switch is connected with first switch signal acquisition circuit and ground line respectively；
First switch signal acquisition circuit module is connect with the automobile controller；
Second digital switch is connect by second switch signal acquisition circuit module with the automobile controller；
The source electrode of second field effect transistor is connect with the third filter circuit module, the drain electrode of the second field effect transistor with
The connection of second overvoltage crowbar module, the grid of the second field effect transistor are connect with the second digital switch；
Second digital switch is connected with second switch signal acquisition circuit module and ground line respectively；
The second overvoltage crowbar module is connect with flash drive circuit module.
2. automobile controller power supply holding circuit according to claim 1, which is characterized in that the power supply is vehicle mounted electric
Bottle.
3. automobile controller power supply holding circuit according to claim 1, which is characterized in that the first filter circuit mould
Block and third filter circuit module include power supply reverse connection protection diode, TVS pipe and electrolytic capacitor.
4. automobile controller power supply holding circuit according to claim 1, which is characterized in that the third filter circuit mould
Block includes multiple capacitors and voltage clamp circuit.
5. automobile controller power supply holding circuit according to claim 1, which is characterized in that first field effect transistor
Pipe and the second field effect transistor are P-channel field-effect transistor (PEFT) transistor.
6. automobile controller power supply holding circuit according to claim 1, which is characterized in that the first overvoltage protection electricity
Road module and the second overvoltage crowbar module include multiple capacitors and Zener diode.
7. automobile controller power supply holding circuit according to claim 1, which is characterized in that first digital switch and
Second digital switch is the digital switch with current feedback.
8. automobile controller power supply holding circuit according to claim 1, which is characterized in that the wake-up source module is key
One of spoon module, fast charge starting module, trickle charge starting module, Remote Wake Up module, battery thermal runaway wake-up module or one
Kind or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822117844.0U CN209581376U (en) | 2018-12-17 | 2018-12-17 | A kind of automobile controller power supply holding circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822117844.0U CN209581376U (en) | 2018-12-17 | 2018-12-17 | A kind of automobile controller power supply holding circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209581376U true CN209581376U (en) | 2019-11-05 |
Family
ID=68349415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822117844.0U Active CN209581376U (en) | 2018-12-17 | 2018-12-17 | A kind of automobile controller power supply holding circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN209581376U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546998A (en) * | 2020-04-03 | 2020-08-18 | 吉利汽车研究院（宁波）有限公司 | Power distribution device and method and vehicle |
| CN114161990A (en) * | 2021-12-03 | 2022-03-11 | 安徽江淮汽车集团股份有限公司 | Power supply power increasing circuit of electric automobile controller |
-
2018
- 2018-12-17 CN CN201822117844.0U patent/CN209581376U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546998A (en) * | 2020-04-03 | 2020-08-18 | 吉利汽车研究院（宁波）有限公司 | Power distribution device and method and vehicle |
| CN111546998B (en) * | 2020-04-03 | 2022-08-02 | 吉利汽车研究院（宁波）有限公司 | Power distribution device and method and vehicle |
| CN114161990A (en) * | 2021-12-03 | 2022-03-11 | 安徽江淮汽车集团股份有限公司 | Power supply power increasing circuit of electric automobile controller |
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