CN201566554U - Master and slave brake switch circuit - Google Patents
Master and slave brake switch circuit Download PDFInfo
- Publication number
- CN201566554U CN201566554U CN2009202941362U CN200920294136U CN201566554U CN 201566554 U CN201566554 U CN 201566554U CN 2009202941362 U CN2009202941362 U CN 2009202941362U CN 200920294136 U CN200920294136 U CN 200920294136U CN 201566554 U CN201566554 U CN 201566554U
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- Prior art keywords
- brake switch
- ecu
- switch
- relay
- switch circuit
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- Expired - Fee Related
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Abstract
The utility model discloses a master and slave brake switch circuit which comprises a brake switch, the front end of which is connected with a positive power supply, and the rear end thereof is connected with a stop lamp in series and then is grounding. The brake switch circuit is characterized in that the rear end of the brake switch is also connected with one end of a winding coil of a relay, and the other end of the winding coil is grounding; one end of a normally-closed switch of the relay is connected with the positive power supply, and the other end of the normally-closed switch is connected with a first input end of an ECU; and one end of a normally-opened switch of the relay is connected with the positive power supply, and the other end of the normally-opened switch is connected with a second input end of the ECU. The master and slave brake switch circuit has the remarkable advantages that two paths of different signals can be provided for the ECU, and the signals comprise high level signals and low level signals, so that the reliability and accuracy of the signals are guaranteed, and the subsequent program of the ECU can be conveniently processed.
Description
Technical field
The utility model belongs to braking automobile control technology field, specifically, is specifically related to a kind of major and minor BK Brake Switch circuit that is used for braking automobile mechanism.
Background technology
Existing BK Brake Switch circuit comprises BK Brake Switch, the preceding termination positive supply of this BK Brake Switch, ground connection behind the string stoplight stop lamp of rear end.And existing many automobile engine control systems have all been realized electronic control, and promptly ECU controls, as reach the driving engine of state III effluent standard.
But the brake signal that provides two-way different all is provided existing a lot of ECU, existing high level signal has low level signal again, the semaphore request as the part EDC system of Bosch just has, so just can guarantee the reliability and the accuracy of signal, also be convenient to the processing of ECU down-stream.To reach the best power performance of driving engine, economy and effluent standard.
But the shortcoming of existing major and minor BK Brake Switch circuit is: only provide one road signal to ECU, can not provide two-way different signals to ECU.
The utility model content
For solving above technical matters, the purpose of this utility model is to provide a kind of major and minor BK Brake Switch circuit, can provide two-way different signals to ECU.
The technical solution of the utility model is as follows: a kind of major and minor BK Brake Switch circuit, comprise BK Brake Switch, the preceding termination positive supply of this BK Brake Switch, ground connection behind the string stoplight stop lamp of rear end, its key is: the rear end of described BK Brake Switch also is connected with an end of relay winding coil, the other end ground connection of this winding coil, one termination positive supply of this relay normally closed switch, the first input end of another termination ECU of normally closed switch, one termination positive supply of this relay normally open switch, second input end of another termination ECU of normal open switch.
After the BK Brake Switch work, stoplight stop lamp is bright.The normal open switch closure sends high level signal to ECU, and normally closed switch disconnects simultaneously, sends low level signal to ECU.
Beneficial effect: the utility model provides a kind of major and minor BK Brake Switch circuit, can provide two-way different signals to ECU simultaneously, and existing high level signal has low level signal again, guarantees the reliability and the accuracy of signal, also is convenient to the processing of ECU down-stream.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the utility model provides a kind of major and minor BK Brake Switch circuit, comprise BK Brake Switch K, the preceding termination positive supply of this BK Brake Switch K, ground connection behind the string stoplight stop lamp of rear end, the rear end of described BK Brake Switch K also is connected with an end of relay J winding coil, the other end ground connection of this winding coil, one termination positive supply of this relay J normally closed switch, the first input end of another termination ECU of normally closed switch, one termination positive supply of this relay J normal open switch, second input end of another termination ECU of normal open switch.
Its principle of work is:
After the BK Brake Switch K work, stoplight stop lamp is bright.The normal open switch closure sends high level signal to ECU, and normally closed switch disconnects simultaneously, sends low level signal to ECU.
Claims (1)
1. major and minor BK Brake Switch circuit, comprise BK Brake Switch (K), the preceding termination positive supply of this BK Brake Switch (K), ground connection behind the string stoplight stop lamp of rear end, it is characterized in that: the rear end of described BK Brake Switch (K) also is connected with an end of relay (J) winding coil, the other end ground connection of this winding coil, one termination positive supply of this relay (J) normally closed switch, the first input end of another termination ECU of normally closed switch, one termination positive supply of this relay (J) normal open switch, second input end of another termination ECU of normal open switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202941362U CN201566554U (en) | 2009-12-25 | 2009-12-25 | Master and slave brake switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202941362U CN201566554U (en) | 2009-12-25 | 2009-12-25 | Master and slave brake switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201566554U true CN201566554U (en) | 2010-09-01 |
Family
ID=42658841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202941362U Expired - Fee Related CN201566554U (en) | 2009-12-25 | 2009-12-25 | Master and slave brake switch circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201566554U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097235A (en) * | 2010-12-29 | 2011-06-15 | 奇瑞汽车股份有限公司 | Brake switch and method for engine control unit to respond braking signal |
| CN111301393A (en) * | 2020-03-26 | 2020-06-19 | 东风柳州汽车有限公司 | Automobile man-machine driving mode-shared braking control system and control method |
| CN112937428A (en) * | 2021-03-30 | 2021-06-11 | 东风柳州汽车有限公司 | Brake control circuit, system and car |
-
2009
- 2009-12-25 CN CN2009202941362U patent/CN201566554U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097235A (en) * | 2010-12-29 | 2011-06-15 | 奇瑞汽车股份有限公司 | Brake switch and method for engine control unit to respond braking signal |
| CN111301393A (en) * | 2020-03-26 | 2020-06-19 | 东风柳州汽车有限公司 | Automobile man-machine driving mode-shared braking control system and control method |
| CN112937428A (en) * | 2021-03-30 | 2021-06-11 | 东风柳州汽车有限公司 | Brake control circuit, system and car |
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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 |
Granted publication date: 20100901 Termination date: 20141225 |
|
| EXPY | Termination of patent right or utility model |