CN201472275U - Vehicle power-off control system - Google Patents
Vehicle power-off control system Download PDFInfo
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- CN201472275U CN201472275U CN2009202041867U CN200920204186U CN201472275U CN 201472275 U CN201472275 U CN 201472275U CN 2009202041867 U CN2009202041867 U CN 2009202041867U CN 200920204186 U CN200920204186 U CN 200920204186U CN 201472275 U CN201472275 U CN 201472275U
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Abstract
The utility model provides a vehicle power-off control system comprising a delay unit used for delaying and sending the delay signal according to the vehicle power-off signal and a controller used for receiving the vehicle power-off signal and sending the control signal, also comprising a switch unit for cutting off a vehicle power supply according to the delay signal and the control signal, and the switch unit is respectively connected with the delay unit and the controller. The switch unit is on through double channels so as to ensure the power supply to be normally cut off, and the system reliability is improved.
Description
Technical field
The utility model relates to vehicle control system, relates in particular to a kind of vehicle outage control system.
Background technology
The outage control system of vehicle comprises the vehicle launch switch at present, with vehicle launch switch bonded assembly controller, with described vehicle launch switch bonded assembly delay unit, with described delay unit bonded assembly switch element, and the power supply relay with conducting of closing that is used for the control vehicle power supply, switch element comprises two first relays that are cascaded and second relay, two relays that are cascaded are connected with power supply relay, described controller is connected with described delay unit, described delay unit time-delay is exported to switch element with the power-off signal of automobile starting switch output, thereby the conducting of two relays in the master cock unit is so that power supply relay disconnects, and Vehicle Power is closed.But the time-delay for switch element in this control system is controlled, only control the first relay adhesive by the time delayed signal of delay unit, also and then adhesive of second relay when the first relay adhesive, when in the switch element as long as one of them relay is when breaking down adhesive always, Vehicle Power is disconnected always and make control system can't normally turn-off Vehicle Power, reduce the reliability of control system.
Summary of the invention
The utility model is in order to solve the adhesive always as long as one of them relay breaks down that exists in the prior art, Vehicle Power is disconnected always and make control system can't normally turn-off Vehicle Power, reduce the technology of dependability problem of control system, provide a kind of and can guarantee the power supply normal turn-off, improve the vehicle outage control system of system reliability.
The utility model provides vehicle outage control system, comprise and be used for controller that the vehicle ct-off signal is delayed time and sent the delay unit of time delayed signal and be used to receive the vehicle ct-off signal and send control signal, also comprise the switch element that Vehicle Power is cut off the power supply according to time delayed signal and control signal, described switch element is connected with described controller with described delay unit respectively.
Compared with prior art: the time delayed signal of delay unit of the present utility model and the control signal of controller be the conducting of master cock unit simultaneously, to guarantee the normal turn-off of power supply, improves the outage reliability of this system.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the structured flowchart of the utility model vehicle outage control system;
Fig. 2 is the delay unit circuit diagram of the utility model embodiment vehicle outage control system;
Fig. 3 is the switch element circuit diagram of the utility model embodiment vehicle outage control system.
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as restriction of the present utility model.
As shown in Figure 1, the utility model provides a kind of vehicle outage control system, comprise and be used for delaying time and sending the delay unit 41 of time delayed signal according to the vehicle ct-off signal, and be used to the controller 20 that receives the vehicle ct-off signal and send control signal, comprise also respectively and delay unit 41 and controller 20 bonded assembly switch elements 51 that described switch element 51 cuts off the power supply to Vehicle Power according to time delayed signal and control signal.
Described vehicle outage control system also comprises the CAN module 31 that is electrically connected with controller 20.Described controller 20 comprises and is used to receive the timer unit 21 that sends timing signal behind vehicle ct-off signal and the timing time T, and, also comprise being used to receive the vehicle ct-off signal and sending the communication unit 23 of this signal to CAN module 31 according to the control unit 22 of timing signal to send control signal.
Described CAN module 31 is notified other modules to carry out power down by the CAN bus and is prepared, other modules are the power drive device, contain electric capacity in the described power drive device, energy-storage travelling wave tubes such as inductance, when the power drive device is received the information that contains power-off signal, energy-storage travelling wave tubes such as electric capacity, inductance will discharge, to prevent after power-off, energy-storage travelling wave tube is sought discharge loop on the power drive device in circuit, and other circuit are caused damage.
The input end of described delay unit 41 is used to receive the vehicle ct-off signal, the mouth of the mouth of described delay unit 41 and control unit 22 is connected with the input end of switch element 51, the control signal conducting or the disconnection of master cock unit 51 simultaneously of sending behind the time delayed signal that sends behind described delay unit 41 time-delay a period of time T and the control unit 22 time-delay a period of time T.The scope of timing time T is 1.5-2.5S.Under the preferable case, T is 2S.
Described switch element 51 included first switch elements, second switch unit, the 3rd switch element, the 4th switch element and the 5th switch element; Described first switch element that is electrically connected with described delay unit 41 is used for controlling according to time delayed signal the conducting or the disconnection of the 3rd switch element; The described second switch unit that is electrically connected with described controller 20 is used for controlling according to control signal the conducting or the disconnection of the 4th switch element; The 5th switch element that is used for when the 3rd switch element and the 4th switch element state consistency Vehicle Power being cut off the power supply is electrically connected with the 3rd switch element and the 4th switch element respectively.Under the preferable case, described the 3rd switch element, the 4th switch element and the 5th switch element are relay, and described first switch element and second switch unit are metal-oxide-semiconductor or aerotron.Described first switch element and second switch unit can be to be metal-oxide-semiconductor or aerotron simultaneously, also can be one and be metal-oxide-semiconductor, and another is an aerotron, as long as receive the signal conduction of delay unit 41 and control unit 22 outputs.
As shown in Figure 2, circuit diagram for a kind of embodiment delay unit 41 of the utility model, described delay unit comprises diode D412, the anode tap of described diode D412 connects the vehicle ct-off signal, cathode terminal connects resistance R 401, the other end of described resistance R 401 connects the inverting input of the first comparator U401A, the in-phase input end of the described first comparator U401A connects resistance R 404, the other end of resistance R 404 connects the 12V power line voltage, described delay unit also comprises stabilivolt Z402, capacitor C 401, capacitor C 402, resistance R 402, resistance R 403, resistance R 405, resistance R 406 and stabilivolt Z401, described capacitor C 401, capacitor C 402, resistance R 402 is connected the inverting input of the first comparator U401A with resistance R 403 backs in parallel one end, the other end is connected with ground, described stabilivolt Z402 is in parallel with described capacitor C 401, and the cathode terminal of described stabilivolt Z402 connects the inverting input of the first comparator U401A, anode tap is connected with ground, the cathode terminal of described stabilivolt Z401 connects the in-phase input end of the first comparator U401A, and anode tap is connected with ground; The mouth of the described first comparator U401A connects the reversed-phase output of the second comparator U401B, the in-phase input end of the second comparator U401B is connected with mouth, described resistance R 405 1 ends are connected with the mouth of the first comparator U401A and the inverse output terminal of the second comparator U401B respectively, the other end of described resistance R 405 is connected with the 12V power supply, described resistance R 406 1 ends connect the mouth of the second comparator U401B, and the other end of described resistance R 406 is connected with the 12V power supply.The principle of work of described delay unit is as follows: the voltage of stabilivolt Z402 is set to 9.1V, utilize the 12V power line voltage that capacitor C 401 and capacitor C 402 are charged, with time delay circuit voltage clamper at 9.1V, the voltage of stabilivolt Z401 is set to 5.1V, when receiving the vehicle ct-off signal, time delay circuit is started working, capacitor C 401 and capacitor C 402 begin discharge, behind the elapsed time T, capacitor C 401 and capacitor C 402 both end voltage are lower than 5.1V, and the output signal of the second comparator U401B offers switch element 51 as one of them drive signal.The length of this delay unit delay time can be regulated by the appearance value size of capacitor C 401 and capacitor C 402, is the common practise of this area.
As shown in Figure 3, be the circuit diagram of a kind of embodiment switch element 51 of the utility model.In the present embodiment, first switch element of described switch element 51 is the first metal-oxide-semiconductor Q401, and the second switch unit is the second metal-oxide-semiconductor Q402, and the 3rd switch element is the first relay G401B, the 4th switch element is the second relay G401A, and the 5th switch element is a power supply relay.Described switch element 51 also comprises diode D402 and diode D403, the anode tap of described diode D402 connects the mouth of time delay circuit, cathode terminal connects resistance R 407, the other end of resistance R 407 connects the gate terminal of the first metal-oxide-semiconductor Q401, gate terminal at the first metal-oxide-semiconductor Q401 also is connected with resistance R 408 and capacitor C 403 respectively, described resistance R 408 is connected in parallel with capacitor C 403 and then is connected with ground, the drain electrode end of the described first metal-oxide-semiconductor Q401 connects resistance R 409, the other end of described resistance R 409 connects the first input end 7 of the first relay G401B, the first input end 7 of the first relay G401B is connected with the anode tap of diode D405, and the cathode terminal of diode D405 is connected with second input end 10 of the first relay G401B.
The anode tap of described diode D403 connects the mouth of control unit 22, described diode D403 cathode terminal connects resistance R 413, the other end of resistance R 413 connects the gate terminal of the second metal-oxide-semiconductor Q402, gate terminal at the second metal-oxide-semiconductor Q402 also is connected with resistance R 412 and capacitor C 405 respectively, described resistance R 412 is connected in parallel with capacitor C 405 and then is connected with ground, the source terminal of the described second metal-oxide-semiconductor Q402 is connected the back and is connected with ground with the source terminal of the first metal-oxide-semiconductor Q401, the drain electrode end of the described second metal-oxide-semiconductor Q402 connects resistance R 414, the other end of described resistance R 414 connects the first input end 2 of the second relay G401A, the first input end 2 of the second relay G401A is connected with the anode tap of diode D404, the cathode terminal of diode D404 is connected with second input end 5 of the second relay G401A, the anode tap of described diode D404 is connected with resistance R 414, is connected in parallel on the two ends of the described first relay G401A after resistance R 411 and LED 401 series connection.
Described delay unit 41 is given switch element 51 according to vehicle ct-off signal forward delay interval signal, the first metal-oxide-semiconductor Q401 conducting in the described switch element 51, control the first relay G401B conducting, first contact 8 of the first relay G401B is connected with its second contact 6, first contact 8 of the first relay G401B is connected with first contact 3 of the second relay G401A, but the second relay G401A does not have conducting, first contact 3 of the second relay G401A is open circuited with its second electric shock 1 that is connected the 12V power line voltage, therefore can't provide the 12V power line voltage to power supply relay so that power supply relay disconnect, have only when controller 20 is also issued switch element 51 with control signal, the second metal-oxide-semiconductor Q402 conducting in the described switch element 51, the second also conducting of relay G401A, promptly first contact 3 of the second relay G401A is connected with its second contact 1, for power supply relay provides 12V power line voltage, power supply relay is disconnected, and then Vehicle Power is closed.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. vehicle outage control system, comprise and be used for the controller of delaying time and sending the delay unit of time delayed signal and be used to receive the vehicle ct-off signal and send control signal according to the vehicle ct-off signal, it is characterized in that: also comprise the switch element that Vehicle Power is cut off the power supply according to time delayed signal and control signal, described switch element is connected with described controller with described delay unit respectively.
2. vehicle outage control system as claimed in claim 1, it is characterized in that: described switch element comprises first switch element, second switch unit, the 3rd switch element, the 4th switch element and the 5th switch element; Described first switch element that is electrically connected with described delay unit is used for controlling according to time delayed signal the conducting or the disconnection of the 3rd switch element; The described second switch unit that is electrically connected with described controller is used for controlling according to control signal the conducting or the disconnection of the 4th switch element; The 5th switch element that is used for when the 3rd switch element and the 4th switch element state consistency Vehicle Power being cut off the power supply is electrically connected with the 3rd switch element and the 4th switch element respectively.
3. vehicle outage control system as claimed in claim 2, it is characterized in that: described first switch element and second switch unit are metal-oxide-semiconductor or aerotron.
4. vehicle outage control system as claimed in claim 2, it is characterized in that: described the 3rd switch element, the 4th switch element and the 5th switch element are relay.
5. vehicle outage control system as claimed in claim 1, it is characterized in that: described controller comprises and is used to receive the timing unit that sends timing signal behind vehicle ct-off signal and the timing time T, and according to timing signal to be used to send the control unit of control signal, described control unit is electrically connected with switch element.
6. vehicle outage control system as claimed in claim 5, it is characterized in that: the scope of timing time T is 1.5-2.5S.
7. vehicle outage control system as claimed in claim 6, it is characterized in that: timing time T is 2S.
8. vehicle outage control system as claimed in claim 1, it is characterized in that: described control system also comprises the CAN module that is electrically connected with controller.
9. vehicle outage control system as claimed in claim 8, it is characterized in that: described controller comprises and is used to receive the vehicle ct-off signal and sends the communication unit of this signal to the CAN module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202041867U CN201472275U (en) | 2009-08-31 | 2009-08-31 | Vehicle power-off control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202041867U CN201472275U (en) | 2009-08-31 | 2009-08-31 | Vehicle power-off control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201472275U true CN201472275U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202041867U Expired - Lifetime CN201472275U (en) | 2009-08-31 | 2009-08-31 | Vehicle power-off control system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359012A (en) * | 2012-03-31 | 2013-10-23 | 中国长城计算机深圳股份有限公司 | Automobile and delay starting circuit of advertising screen thereof |
| WO2014008741A1 (en) * | 2012-07-12 | 2014-01-16 | 北汽福田汽车股份有限公司 | Electric vehicle and power supply management device thereof |
| US9682669B2 (en) | 2015-04-27 | 2017-06-20 | Ford Global Technologies, Llc | Vehicle safety power management |
| US9694768B2 (en) | 2015-04-27 | 2017-07-04 | Ford Global Technologies, Llc | Vehicle safety power management |
| CN107719159A (en) * | 2017-09-21 | 2018-02-23 | 浙江吉利汽车研究院有限公司 | Circuit and control method under a kind of electric automobile low-power consumption time delay |
| CN112636732A (en) * | 2020-12-28 | 2021-04-09 | 潍柴动力股份有限公司 | Power-off delay protection circuit and device |
-
2009
- 2009-08-31 CN CN2009202041867U patent/CN201472275U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359012A (en) * | 2012-03-31 | 2013-10-23 | 中国长城计算机深圳股份有限公司 | Automobile and delay starting circuit of advertising screen thereof |
| CN103359012B (en) * | 2012-03-31 | 2015-06-03 | 中国长城计算机深圳股份有限公司 | Automobile and delay starting circuit of advertising screen thereof |
| WO2014008741A1 (en) * | 2012-07-12 | 2014-01-16 | 北汽福田汽车股份有限公司 | Electric vehicle and power supply management device thereof |
| US9682669B2 (en) | 2015-04-27 | 2017-06-20 | Ford Global Technologies, Llc | Vehicle safety power management |
| US9694768B2 (en) | 2015-04-27 | 2017-07-04 | Ford Global Technologies, Llc | Vehicle safety power management |
| CN107719159A (en) * | 2017-09-21 | 2018-02-23 | 浙江吉利汽车研究院有限公司 | Circuit and control method under a kind of electric automobile low-power consumption time delay |
| CN107719159B (en) * | 2017-09-21 | 2020-01-31 | 浙江吉利汽车研究院有限公司 | electric automobile low-power-consumption delay power-off circuit and control method |
| CN112636732A (en) * | 2020-12-28 | 2021-04-09 | 潍柴动力股份有限公司 | Power-off delay protection circuit and device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |