CN205121323U - Novel electron parking switch of diode mode - Google Patents
Novel electron parking switch of diode mode Download PDFInfo
- Publication number
- CN205121323U CN205121323U CN201520878540.XU CN201520878540U CN205121323U CN 205121323 U CN205121323 U CN 205121323U CN 201520878540 U CN201520878540 U CN 201520878540U CN 205121323 U CN205121323 U CN 205121323U
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Abstract
The utility model relates to a novel electron parking switch of diode mode. Electron parking switch among the prior art still belongs to mechanical switch, receives the switch contact contact failure logical OR circuit easily and arouses the error in judgement unusually, and ECU can't detect unusually, has just so increased the potential safety hazard of the in -process that traveles. The utility model discloses a to current multiple way system mechanical switch introduction diode circuit, ecu detects the on off state at any time, and then has reduced the potential safety hazard of the in -process that traveles. The utility model discloses an including signal input circuit, electronic control circuit, state output circuit. The electronic control circuit carries out logic control through the diode to export the result for state output circuit.
Description
Technical field
The utility model relates to a kind of electronic parking switch, particularly relates to a kind of electronic parking switch of Novel diode mode.
Background technology
Need before automobile dispatches from the factory to use automatic parking Switch Controller automatic parking mechanism strictly to test.Automatic parking switch realizes three kinds of State Transferring by multiple-way system break-make mode.
Find in background technology, to there is following problem by analysis:
Electronic parking switch of the prior art also belongs to mechanical switch, easily be subject to switch contact loose contact or circuit abnormal (such as short circuit or open circuit) and cause error in judgement, electronic control unit (ECU, ElectronicControlUnit) cannot exception be detected, which adds the potential safety hazard in driving process.
Summary of the invention
Problem to be solved in the utility model is: the electronic parking switch providing a kind of Novel diode mode.This electronic parking switch is by introducing diode circuit to existing multiple-way system mechanical switch, and electronic control unit detects on off state at any time, and then reduces the potential safety hazard in driving process.
The scheme that the utility model solves the problems of the technologies described above is:
An electronic parking switch for Novel diode mode, comprises signal input circuit, electronic control circuit, State-output circuit.Electronic control circuit carries out logic control by diode, and result is exported to State-output circuit.
The utility model is for the defect of existing multi-thread on-off switch, and by introducing diode circuit to existing multiple-way system mechanical switch, electronic control unit detects on off state at any time, and then reduces the potential safety hazard in driving process.
ECU is to switch four paths SW1-SW4 circulation input pulse sequence, and ECU detector switch is to switch four paths SW1-SW4 state.
ECU, in the four group states of 4 pulse train time detecting to continuous SW1-SW4, contrasts truth table.Obtain the state of parking switch.
In the utility model, adopt electronic control circuit carry out alternative original mechanical switch, ECU can carry out the state of detector switch by input pulse sequence continuously, electron device can Real-time Feedback on off state to ECU.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is driving waiting status detection figure of the present utility model;
Fig. 3 is parking executing state detection figure of the present utility model;
Fig. 4 is parking release conditions detection figure of the present utility model.
In figure: signal input circuit (1), electronic control circuit (2), State-output circuit (3).
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in the figure, the utility model is a kind of electronic parking switch of Novel diode mode.Comprise signal input circuit 1, electronic control circuit 2, State-output circuit 3.
Signal input circuit 1, by four signal input parts, is connected to ECU by wire respectively, and is powered to this electronic parking switch by signal input circuit 1 by ECU simultaneously.
Electronic control circuit 2 comprises four diodes, the two states that release (release) and parking (apply) are non-self-lock-ing tri-state switch, as shown in Figure 1.
State-output circuit 3 comprises two lead-out terminals, exports the on off state of electronic parking in real time to ECU module.
Electronic control circuit 2 needs when judging electronic parking on off state to show that switching signal is to State-output circuit 3 according to the pulse train control signal contrast truth table in input circuit 1.
The deterministic process of three kinds of states is described below in detail:
A) driving waiting status
Truth table
1) ECU sends out pulse signal 1 to SW1, and other is 0, and because SW1 is diode forward conducting to SW4, switch detection signal #SW1 and #SW4 is 1, and other is 0.
2) ECU sends out pulse signal 1 to SW2, and other is 0, and because SW2 is diode reverse not conducting to SW3, switch detection signal #SW2 is 1, and other is 0.
3) ECU sends out pulse signal 1 to SW3, and other is 0, and because SW3 is diode forward conducting to SW2, switch detection signal #SW2 and #SW3 is 1, and other is 0.
4) ECU sends out pulse signal 1 to SW4, and other is 0, and because SW4 is diode reverse not conducting to SW1, switch detection signal #SW4 is 1, and other is 0.
B) parking executing state
Truth table
1) ECU sends out pulse signal 1 to SW1, and other is 0, and because SW1 is diode reverse not conducting to SW4, switch detection signal #SW1 is 1, and other is 0.
2) ECU sends out pulse signal 1 to SW2, and other is 0, and because SW2 is to the conducting of SW3 wire, switch detection signal #SW2 and #SW3 is 1, and other is 0.
3) ECU sends out pulse signal 1 to SW3, and other is 0, and because SW3 is to the conducting of SW2 wire, switch detection signal #SW2 and #SW3 is 1, and other is 0.
4) ECU sends out pulse signal 1 to SW4, and other is 0, and because SW4 is diode forward conducting to SW1, switch detection signal #SW1 and #SW4 is 1, and other is 0.
C) parking release conditions
Truth table
1) ECU sends out pulse signal 1 to SW1, and other is 0, and because SW1 is to the conducting of SW4 wire, switch detection signal #SW1 and #SW4 is 1, and other is 0.
2) ECU sends out pulse signal 1 to SW2, and other is 0, and because SW2 is that diode forward is led to SW3, switch detection signal #SW2 and #SW3 is 1, and other is 0.
3) ECU sends out pulse signal 1 to SW3, and other is 0, and because SW3 is diode reverse not conducting to SW2, switch detection signal #SW3 is 1, and other is 0.
4) ECU sends out pulse signal 1 to SW4, and other is 0, and because SW4 is to the conducting of SW1 wire, switch detection signal #SW1 and #SW4 is 1, and other is 0.
In the utility model, signal input interface 1 is responsible for reception control signal, and control signal is sent by ECU, does not need the ECU for being responsible for sending control signal to do particular design, therefore repeat no more in this utility model.Meanwhile, the diode adopted in electronic control circuit 2 in the utility model is also electronic devices and components ripe in prior art, also repeats no more.
Should be understood that this embodiment is only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the utility model appended claims limited range equally after the content of having read the utility model instruction.
Claims (1)
1. an electronic parking switch for Novel diode mode, comprises signal input circuit (1), electronic control circuit (2), State-output circuit (3), it is characterized in that:
Signal input circuit (1), by four signal input parts, is connected to ECU by wire respectively, and is powered by signal input circuit (1) by ECU;
Electronic control circuit (2) comprises four diodes;
State-output circuit (3) comprises two lead-out terminals;
Electronic control circuit (2) needs when judging electronic parking on off state to show that switching signal is to State-output circuit (3) according to the pulse train control signal contrast truth table in signal input circuit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878540.XU CN205121323U (en) | 2015-11-06 | 2015-11-06 | Novel electron parking switch of diode mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878540.XU CN205121323U (en) | 2015-11-06 | 2015-11-06 | Novel electron parking switch of diode mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205121323U true CN205121323U (en) | 2016-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520878540.XU Expired - Fee Related CN205121323U (en) | 2015-11-06 | 2015-11-06 | Novel electron parking switch of diode mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205121323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050610A (en) * | 2021-03-31 | 2021-06-29 | 上海拿森汽车电子有限公司 | State detection device and vehicle |
-
2015
- 2015-11-06 CN CN201520878540.XU patent/CN205121323U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050610A (en) * | 2021-03-31 | 2021-06-29 | 上海拿森汽车电子有限公司 | State detection device and vehicle |
| CN113050610B (en) * | 2021-03-31 | 2022-06-03 | 上海拿森汽车电子有限公司 | State detection device and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201814 Shanghai city Anting town Jiading District Bai'an Road No. 188 Patentee after: ZF Automotive Systems (Shanghai) Co., Ltd Address before: 201814 Shanghai city Anting town Jiading District Bai'an Road No. 188 Patentee before: TIANHE AUTOMOBILE PARTS (SHANGHAI) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20201106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |