CN210514991U - Startup and shutdown delay control circuit - Google Patents
Startup and shutdown delay control circuit Download PDFInfo
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- CN210514991U CN210514991U CN201921765099.9U CN201921765099U CN210514991U CN 210514991 U CN210514991 U CN 210514991U CN 201921765099 U CN201921765099 U CN 201921765099U CN 210514991 U CN210514991 U CN 210514991U
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- control
- vehicle
- control module
- delay
- circuit
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Abstract
The utility model discloses a startup and shutdown delay control circuit, which comprises an MCU control module, a delay circuit, an ignition control system and a vehicle-mounted control mainboard; the signal output end of the ignition control system is connected with the signal input end of the MCU control module; the output end of the delay circuit is connected with the input end of the MCU control module; and the output end of the MCU control module is connected with the input end of the vehicle-mounted control mainboard. The circuit can solve the problem of ignition starting failure caused by instable voltage at the moment of ignition starting of the automobile and the problem of large power consumption of the storage battery when the automobile enters a standby state.
Description
Technical Field
The utility model relates to a car control circuit field, in particular to switching on and shutting down delay control circuit.
Background
When a general automobile is ignited and started, voltage is unstable during ignition, so that ignition starting failure is caused at a high probability; the battery of the automobile is large in power consumption in a standby state. Therefore, a control circuit capable of solving the problems of starting failure of ignition caused by unstable voltage during ignition and large power consumption of a storage battery in a standby state needs to be designed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the utility model provides a switching on and shutting down time delay control circuit to solve the problem that proposes in the above-mentioned background art.
The utility model provides a technical scheme that problem among the prior art adopted does: a startup and shutdown delay control circuit comprises an MCU control module, a delay circuit, an ignition control system and a vehicle-mounted control mainboard; the signal output end of the ignition control system is connected with the signal input end of the MCU control module; the output end of the delay circuit is connected with the input end of the MCU control module; and the output end of the MCU control module is connected with the input end of the vehicle-mounted control mainboard.
As the utility model discloses an optimal scheme, delay circuit includes start delay circuit and shutdown delay circuit, start delay circuit and shutdown delay circuit are connected with MCU control module respectively.
As the utility model discloses a preferred scheme, on-vehicle control mainboard input includes on-vehicle control mainboard switching on and shutting down control input and on-vehicle control mainboard standby power supply control input, MCU control module is connected with on-vehicle control mainboard switching on and shutting down control input and on-vehicle control mainboard standby power supply control input respectively.
As the utility model discloses an optimal scheme, MCU control module is connected with the output of on-vehicle control mainboard for receive the south bridge reset signal that the on-vehicle control mainboard sent.
As the utility model discloses a preferred scheme, start-up delay circuit includes dial switch SW1 and pull-up resistance R1, dial switch SW1 one end is connected with pull-up resistance R1 one end and MCU control module respectively, dial switch SW 1's other end ground connection, the pull-up resistance R1 other end is connected with power VCC.
As the utility model discloses a preferred scheme, the shutdown delay circuit includes dial switch SW2 and pull-up resistance R2, dial switch SW2 one end is connected with pull-up resistance R2 one end and MCU control module respectively, dial switch SW 2's other end ground connection, the pull-up resistance R2 other end is connected with power VCC.
Compared with the prior art, the utility model discloses following technological effect has:
the utility model provides a switch on/off delay control circuit can reach the time delay alternative through the state that sets up dial switch SW1 and SW 2. The problem of ignition failure caused by unstable voltage at the moment of ignition and large power consumption of a storage battery when the automobile is in standby is solved by better matching different automobiles.
Meanwhile, the circuit is simple in structure, flexible to control, easy to popularize widely and high in use value.
Drawings
Fig. 1 is a circuit schematic diagram of a startup and shutdown delay control circuit of the present invention;
fig. 2 is a logic diagram of the startup delay in the startup delay control circuit of the present invention;
fig. 3 is a logic diagram of the power saving delay of the power-off delay control circuit of the present invention.
Reference numbers in the figures: 1-MCU control module; 2-a delay circuit; 3-an ignition control system; 4-vehicle control mainboard.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1: a startup and shutdown delay control circuit comprises an MCU control module 1, a delay circuit 2, an ignition control system 3 and a vehicle-mounted control mainboard 4; the signal output end of the ignition control system 3 is connected with the signal input end of the MCU control module 1, and when the automobile is ignited, the MCU control module 1 receives an ignition signal ACC sent by the ignition control system 3;
the output end of the delay circuit 2 is connected with the input end of the MCU control module 1, further, the delay circuit 2 comprises a startup delay circuit 2 and a shutdown delay circuit 2, and the startup delay circuit 2 and the shutdown delay circuit 2 are respectively connected with the MCU control module 1; specifically, the startup delay circuit 2 includes a dial switch SW1 and a pull-up resistor R1, one end of the dial switch SW1 is connected with one end of the pull-up resistor R1 and the MCU control module 1, the other end of the dial switch SW1 is grounded, the other end of the pull-up resistor R1 is connected with the power VCC, the shutdown delay circuit 2 includes a dial switch SW2 and a pull-up resistor R2, one end of the dial switch SW2 is connected with one end of the pull-up resistor R2 and the MCU control module 1, the other end of the dial switch SW2 is grounded, and the other end of the pull-up resistor R2 is connected with the power VCC; the R1 resistor and the R2 resistor can be set to have different resistances according to actual conditions.
The input end of the vehicle-mounted control main board 4 comprises a switch machine control input end of the vehicle-mounted control main board 4 and a standby power supply control input end of the vehicle-mounted control main board 4, and the MCU control module 1 is respectively connected with the switch machine control input end of the vehicle-mounted control main board 4 and the standby power supply control input end of the vehicle-mounted control main board 4;
the output end of the MCU control module 1 is connected with the input end of the vehicle-mounted control mainboard 4 and is used for receiving a south bridge reset signal sent by the vehicle-mounted control mainboard 4.
Starting up and delaying: when the automobile starts to ignite, the MCU control module 1 receives an ignition signal ACC _ IN sent by the ignition control system 3 and simultaneously receives a south bridge reset signal RSMRST _ MCU sent by the vehicle-mounted control motherboard 4, controls the startup delay time according to the preset state of the dial switch SW1 IN the startup delay circuit 2, and after the delay, the MCU control module 1 sends a pull-down pulse signal of BUTTON _ N to the vehicle-mounted control motherboard 4 as the startup signal of the vehicle-mounted control motherboard 4. Specifically, when the SW1 switch is turned on, the potential of the PA0 port of the MCU control module 1 is low, and "0" state represents a delay a time; the SW1 switch is turned off, and the potential of the PA0 port of the MCU control module 1 is high, and "1" state represents a delay time B.
Shutdown power saving and time delay: when the automobile is flamed out, the MCU control module 1 receives a flameout signal ACC _ IN sent by the ignition control system 3 and then the MCU control module 1 sends a BUTTON _ N pull-down pulse signal to the vehicle-mounted control mainboard 4 to serve as a shutdown signal of the vehicle-mounted control mainboard 4, and the vehicle-mounted control mainboard 4 enters a standby state. Then, according to the preset state of the dial switch SW2 in the shutdown delay circuit 2, the MCU control module 1 sends a control delay signal STBY _ EN to the vehicle-mounted control motherboard 4 to control to turn off the standby power of the vehicle-mounted control motherboard 4, and enters a power saving state. Specifically, when the SW2 switch is turned on, the potential of the PB0 port of the MCU control module 1 is low, and "0" state represents a delay a time; the SW2 switch is turned off, and the potential of the PB0 port of the MCU control block 1 is high, and "1" state represents a delay time B.
The power-on delay logic diagram shown in FIG. 2:
when the automobile is ignited and started, the MCU control module 1 sequentially receives an ignition signal ACC _ IN and a south bridge reset signal RSMRST _ MCU, when a dial switch SW1 is IN a preset closed state, the state of a PA0 port of the MCU control module 1 is '0', a delay A of the MCU control module 1 sends out a pull-down pulse signal BUTTON _ N, and the vehicle-mounted control mainboard 4 is started; when the dial switch SW1 is in a preset off state, the state of the PA0 port of the MCU control module 1 is "1", the MCU control module 1 sends a pull-down pulse signal BUTTON _ N with a delay B, and the vehicle-mounted control motherboard 4 is turned on.
The power-off power-saving delay logic diagram shown in fig. 3:
when the automobile is shut down, and the vehicle-mounted control mainboard 4 is IN a power-on state, the MCU control module 1 receives a shut-down signal ACC _ IN, and simultaneously the MCU control module 1 sends a pull-down pulse signal BUTTON _ N to shut down the vehicle-mounted control mainboard 4 to enter a standby state, when a dial switch SW2 is IN a preset closed state, a PB0 port state of the MCU control module 1 is '0', a delay A of the MCU control module 1 sends a control STBY _ EN signal, and partial standby power supply of the vehicle-mounted control mainboard 4 is shut down; when the dial switch SW2 is turned off, the PB0 port of the MCU control module 1 is in a state of "1", the MCU control module 1 delays B to send a control STBY _ EN signal, turns off part of the standby power of the vehicle control motherboard 4, and the vehicle control motherboard 4 enters a power saving state.
Compared with the prior art, the utility model discloses following technological effect has:
the utility model provides a switch on/off delay control circuit can reach the time delay alternative through the state that sets up dial switch SW1 and SW 2. The problem of ignition failure caused by unstable voltage at the moment of ignition and large power consumption of a storage battery when the automobile is in standby is solved by better matching different automobiles.
Meanwhile, the circuit is simple in structure, flexible to control, easy to popularize widely and high in use value.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a switching on and shutting down delay control circuit which characterized in that: the ignition control system comprises an MCU control module, a delay circuit, an ignition control system and a vehicle-mounted control mainboard; the signal output end of the ignition control system is connected with the signal input end of the MCU control module; the output end of the delay circuit is connected with the input end of the MCU control module; and the output end of the MCU control module is connected with the input end of the vehicle-mounted control mainboard.
2. The on/off delay control circuit of claim 1, wherein: the delay circuit comprises a startup delay circuit and a shutdown delay circuit, and the startup delay circuit and the shutdown delay circuit are respectively connected with the MCU control module.
3. The on/off delay control circuit of claim 1, wherein: the vehicle-mounted control mainboard input end comprises a vehicle-mounted control mainboard on-off control input end and a vehicle-mounted control mainboard standby power supply control input end, and the MCU control module is respectively connected with the vehicle-mounted control mainboard on-off control input end and the vehicle-mounted control mainboard standby power supply control input end.
4. The on/off delay control circuit of claim 1, wherein: the MCU control module is connected with the output end of the vehicle-mounted control mainboard and used for receiving south bridge reset signals sent by the vehicle-mounted control mainboard.
5. The on/off delay control circuit of claim 2, wherein: the startup delay circuit comprises a dial switch SW1 and a pull-up resistor R1, one end of the dial switch SW1 is connected with one end of the pull-up resistor R1 and the MCU control module respectively, the other end of the dial switch SW1 is grounded, and the other end of the pull-up resistor R1 is connected with a power supply VCC.
6. The on/off delay control circuit of claim 2, wherein: the shutdown delay circuit comprises a dial switch SW2 and a pull-up resistor R2, one end of the dial switch SW2 is connected with one end of the pull-up resistor R2 and the MCU control module respectively, the other end of the dial switch SW2 is grounded, and the other end of the pull-up resistor R2 is connected with a power supply VCC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765099.9U CN210514991U (en) | 2019-10-18 | 2019-10-18 | Startup and shutdown delay control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765099.9U CN210514991U (en) | 2019-10-18 | 2019-10-18 | Startup and shutdown delay control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210514991U true CN210514991U (en) | 2020-05-12 |
Family
ID=70573162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921765099.9U Expired - Fee Related CN210514991U (en) | 2019-10-18 | 2019-10-18 | Startup and shutdown delay control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210514991U (en) |
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2019
- 2019-10-18 CN CN201921765099.9U patent/CN210514991U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200512 Termination date: 20211018 |