CN209634429U - A kind of automobile PEPS system electronic steering column lock safe power supply circuit - Google Patents
A kind of automobile PEPS system electronic steering column lock safe power supply circuit Download PDFInfo
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- CN209634429U CN209634429U CN201920289503.3U CN201920289503U CN209634429U CN 209634429 U CN209634429 U CN 209634429U CN 201920289503 U CN201920289503 U CN 201920289503U CN 209634429 U CN209634429 U CN 209634429U
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- triode
- relay
- power supply
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Abstract
The utility model provides a kind of automobile PEPS system electronic steering column lock safe power supply circuit, including power supply control input circuit, logic control circuit, the first driving circuit and the second driving circuit, power supply control input circuit passes sequentially through the electrode input end of logic control circuit, the first driving circuit control ESCL power supply；Power supply control input circuit passes sequentially through the negative input of logic control circuit, the second driving circuit control ESCL power supply；The output signal of power supply control input circuit includes the output signal of IG1 relay, MCU port signal and MCU reset signal.The output signal of the utility model IG1 relay, MCU port signal and reset signal control the power supply and ground of ESCL simultaneously, effectively prevent ESCL in the process of moving and accidentally power on to lead to serious consequence；The IG1 control relay circuit built has the function of relay actuation, relay disconnection, self-locking, overcurrent protection and afterflow, avoids the case where MCU maloperation causes IG1 relay to disconnect.
Description
Technical field
The utility model belongs to alarms and security systems for automobiles technical field, more particularly, to a kind of automobile PEPS system electrical steering
Column locks safe power supply circuit.
Background technique
Steering mechanism (steering wheel) locking system is one of anti-theft device of authorized by state, reliability and safe antitheft
The requirement of the mandatory technical specification of national automobile burglar must be reached.With the continuous universal and hair of automobile market PEPS technology
It opens up, intelligent entrance and intelligent starting function has been had been provided in more and more vehicles, traditional mechanical lock for steering column is almost
It is substituted by electronic steering column lock ESCL, condition one of of the electronic steering column lock ESCL as vehicle launch, reliability and peace
Full property is necessarily particularly significant, therefore, how to avoid electronic steering column lock maloperation, is the important skill to merit our study
Art.
Summary of the invention
In view of this, the utility model is directed to a kind of automobile PEPS system electronic steering column lock safe power supply circuit,
It can be powered on by multiple signal co- controlling electronic steering column locks, logic is rigorous, and the mistake of electronic steering column lock is effectively avoided to grasp
Make.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of automobile PEPS system electronic steering column lock safe power supply circuit, including power supply control input circuit, logic control
Circuit, the first driving circuit and the second driving circuit processed, the power supply control input circuit pass sequentially through logic control circuit,
The electrode input end of one drive circuit control ESCL power supply；The power supply control input circuit pass sequentially through logic control circuit,
The negative input of second driving circuit control ESCL power supply；The output signal of the power supply control input circuit include IG1 after
The output signal of electric appliance, the MCU port signal of PEPS controller and MCU reset signal.
Further, the output signal of IG1 relay, the IG1 relay control are controlled by IG1 control relay circuit
Circuit processed includes that relay closure logic circuit unit, relay latching circuit unit, current foldback circuit unit, relay are disconnected
Open logic control circuit unit and freewheeling circuit unit；
The relay closure logic circuit unit includes the triode Q507 of NPN type, and the base stage of triode Q507 passes through
Resistance connects the IG1 drive output signal IG1_OPEN_PC14 of MCU, and collector passes through three poles of resistance R508 connection positive-negative-positive
The base stage of pipe Q501, the collector of triode Q501 pass through the base stage of the triode Q504 of resistance R505 connection NPN type, triode
Base stage of the collector of Q504 by the triode BCP53 of resistance R503 connection positive-negative-positive, the emitter of the triode BCP53
Connect power supply VB2, collector passes through the output signal IG1_RELAY_OUT of resistance R500 connection IG1 relay；
The relay latching circuit unit includes the triode Q508 of NPN type, and the base stage of triode Q508 passes through resistance
R510 connects the collector of resistance R505 and triode Q501 simultaneously, and the collector of triode Q508 passes through resistance R509 connection three
The base stage of pole pipe Q501；
The current foldback circuit unit includes the triode Q503 of NPN type, and the base stage one side of triode Q503 is successively
By diode D502, resistance R501 and resistance R500 connection IG1_RELAY_OUT, on the other hand it is grounded by resistance R507,
Emitter passes through the triode Q506 of resistance R506 connection positive-negative-positive by resistance R502 connection IG1_RELAY_OUT, collector；
The base stage of the collector connecting triode BCP53 of triode Q506；
The relay disconnects the triode Q502 that logic control circuit unit includes positive-negative-positive, the base stage of triode Q502
The relay cut-off signal of MCU output is connected by resistance, collector connects the triode Q505 of NPN type, three poles by resistance
The collector of pipe Q505 passes through the triode Q500 of resistance R504 connection positive-negative-positive, the collector connecting triode of triode Q500
The base stage of Q501；
The freewheeling circuit unit includes that sustained diode 501 and diode D503, IG1_RELAY_OUT pass through afterflow
Diode D501 ground connection, while passing through the base stage of diode D503 connecting triode Q503.
Further, the logic control circuit includes the triode Q5002 of positive-negative-positive, and the base stage of triode Q5002 passes through
Diode D5001 accesses RESET signal, and emitter meets power supply VCC50, and collector connects the triode of NPN type by diode
The base stage of Q5001, while the output signal of IG1 relay passes sequentially through resistance R5025, diode D5004 connecting triode
The base stage of Q5001；The collector of triode Q5001 is by the collector of the triode Q5006 of resistance R5000 connection positive-negative-positive, and three
The emitter of pole pipe Q5006 meets power supply VCC50, and base stage accesses input signal MCU_IO_PWR by resistance；Triode Q5001's
Collector is also connected with the base stage of the triode Q5007 of NPN type, the emitter ground connection of the triode Q5007 simultaneously, and collector connects
Connect the input terminal of first driving circuit；On the other hand, the base stage of triode Q5001 also connects the three of NPN type by resistance
The base stage of pole pipe Q5003, the collector of the triode Q8101 of the collector connection positive-negative-positive of triode Q5003, triode Q8101
Base stage pass through resistance connect input signal MCU_IO_GND；The collector of triode Q5003 is connected by resistance R5016 simultaneously
The control terminal of second driving circuit.
Further, first driving circuit is intelligent switch chip, model BTS5010-1EKA.
Further, second driving circuit is N-channel MOS pipe, model BTS3046SDL.
Further, electric to the output of the first driving circuit by a port AD of MCU using the form of electric resistance partial pressure
Pressure is acquired, and constitutes feed circuit.
Compared with the existing technology, the utility model has the advantage that
(1) output signal of the utility model IG1 relay, MCU port signal and MCU reset signal, control simultaneously
The power supply and ground of ESCL guarantees that reset signal, IG1 relay drive signal can close ESCL power supply power supply respectively, effectively keeps away
Exempt from ESCL in the process of moving and accidentally powered on to lead to serious consequence.
(2) one of the condition whether output signal of the utility model IG1 relay is powered as ESCL, IG1 relay
Stabilization determine the correct operation of ESCL, the IG1 control relay circuit built, there is relay to be attracted, relay disconnects,
Relay is self-locking, relay overcurrent protection and afterflow function, and reliable performance, cost is relatively low.Effectively MCU maloperation is avoided to lead
The case where causing IG1 relay to disconnect.
(3) the utility model guarantees electronic lock failure and voltage instability timing with diagnosis and feedback function, anti-in time
Feed MCU, when user is this time at the end of stroke, need to first be overhauled, could normal use again, ensure that the peace of rider
Entirely.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.In
In attached drawing:
Fig. 1 is the functional block diagram of electronic steering column lock safe power supply circuit described in the utility model embodiment；
Fig. 2 is the circuit diagram of IG1 control relay circuit described in the utility model embodiment；
Fig. 3 is the circuit diagram of logic control circuit described in the utility model embodiment.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
It should be noted that present specification and claims and the term " first " in above-mentioned attached drawing, " second "
Etc. being to be used to distinguish similar objects, without being used to describe a particular order or precedence order.Term " includes " and " having "
And their any deformation, it is intended that cover and non-exclusive include.For example, containing the mistake of a series of steps or units
Journey, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include unclear
Other step or units that ground is listed or intrinsic for these process, methods, product or equipment.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of automobile PEPS system electronic steering column lock safe power supply circuit of the present embodiment, as shown in Figure 1, including for automatically controlled
Input circuit, logic control circuit, the first driving circuit and the second driving circuit processed,
The power supply control input circuit is passing sequentially through logic control circuit, the first driving circuit control ESCL power supply just
Pole input terminal；
The power supply control input circuit passes sequentially through logic control circuit, the second driving circuit controls the negative of ESCL power supply
Pole input terminal；
The output signal of the power supply control input circuit includes the MCU of the output signal of IG1 relay, PEPS controller
Port signal and MCU reset signal.IG1 relay is ignition relay.
The logic control circuit is built using discrete component, and input signal includes the output signal of IG1 relay
(IG1_OUT), the MCU port signal (MCU_IO_PWR, MCU_IO_GND) Yu MCU reset signal (RESET) of PEPS controller；
Realize that MCU reset signal, the closure signal of IG1 relay, MCU port signal MCU_IO_PWR can be respectively by the first driving electricity
ESCL feeder ear is closed on road, is guaranteed when the driving signal of IG1 relay provides, ESCL does not power；Equally, IG1 relay
Cut-off signal, MCU port signal MCU_IO_GND, MCU reset signal, can respectively by the second driving circuit control ESCL supply
The ground terminal of electricity.
Specifically, as shown in figure 3, the logic control circuit includes the triode Q5002 of positive-negative-positive, triode Q5002's
Base stage accesses RESET signal by diode D5001, and emitter meets power supply VCC50, and collector connects NPN type by diode
Triode Q5001 base stage, while the output signal (IG1_OUT) of IG1 relay passes sequentially through resistance R5025, diode
The base stage of D5004 connecting triode Q5001；The collector of triode Q5001 passes through the triode of resistance R5000 connection positive-negative-positive
The collector of Q5006, the emitter of triode Q5006 meet power supply VCC50, and base stage accesses input signal MCU_IO_ by resistance
PWR；The collector of triode Q5001 is also connected with the base stage of the triode Q5007 of NPN type, the hair of the triode Q5007 simultaneously
Emitter grounding, collector connect the input terminal of first driving circuit；
On the other hand, the base stage of triode Q5001 also connects the base stage of the triode Q5003 of NPN type, three poles by resistance
The collector of the triode Q8101 of the collector connection positive-negative-positive of pipe Q5003, the base stage of triode Q8101 is connected defeated by resistance
Enter signal MCU_IO_GND；The collector of triode Q5003 connects the control of second driving circuit by resistance R5016 simultaneously
End processed.
First driving circuit selects intelligent switch chip, model BTS5010-1EKA, has output open circuit and right
The diagnostic function of ground short circuit.
Second driving circuit is N-channel MOS pipe, model BTS3046SDL.
In order to preferably monitor the supply voltage of ESCL, feedback electricity additionally is increased in the output end of the first driving circuit
Road, as shown in Figure 1, being acquired by a port AD of MCU to output voltage using the form of electric resistance partial pressure, thus real
When monitor.
By the output signal of IG1 control relay circuit control IG1 relay, as shown in Fig. 2, IG1 relay control electricity
Road include relay interconnected closure logic circuit unit, relay latching circuit unit, current foldback circuit unit, after
Electric appliance disconnects logic control circuit unit and freewheeling circuit unit.
The relay is closed logic circuit unit, the triode Q507 including NPN type, and the base stage of triode Q507 passes through
Resistance connects the IG1 drive output signal (IG1_OPEN_PC14) of MCU, and collector passes through the three of resistance R508 connection positive-negative-positive
The base stage of pole pipe Q501, the collector of triode Q501 pass through the base stage of the triode Q504 of resistance R505 connection NPN type, three poles
Base stage of the collector of pipe Q504 by the triode BCP53 of resistance R503 connection positive-negative-positive, the transmitting of the triode BCP53
Pole connects power supply VB2, collector passes through the output signal (IG1_RELAY_OUT) of resistance R500 connection IG1 relay.
That is when IG1_OPEN_PC14 is high level signal, triode Q507 conducting, triode Q501 base stage is pulled low,
Q501 conducting, Q504 base stage are raised, and Q504 conducting, BCP53 base stage is pulled low, so that power supply VB2 connects IG1_RELAY_
OUT。
The relay latching circuit unit includes the triode Q508 of NPN type, and the base stage of triode Q508 passes through resistance
R510 connects the collector of resistance R505 and triode Q501 simultaneously, and the collector of triode Q508 passes through resistance R509 connection three
The base stage of pole pipe Q501.
I.e. IG1 relay latching circuit unit is controlled by Q508, while Q504 conducting, Q508 conducting, and Q501 base stage
In low level, at this point, IG1 drive output signal G1_OPEN_PC14 will be unable to the closure of control relay, even if high level
Be lower level, can not also disconnect relay, is closed self-locking state hence into relay.
The current foldback circuit unit includes the triode Q503 of NPN type, and the base stage one side of triode Q503 is successively
By diode D502, resistance R501 and resistance R500 connection IG1_RELAY_OUT, on the other hand it is grounded by resistance R507,
Emitter passes through the triode Q506 of resistance R506 connection positive-negative-positive by resistance R502 connection IG1_RELAY_OUT, collector；
The base stage of the collector connecting triode BCP53 of triode Q506.
When the electric current for flowing through resistance R500 is excessive or IG1_RELAY_OUT shorted to earth, Q503 conducting, the base of Q506
Pole tension is pulled low after R506, R507 partial pressure, to open triode Q506, BCP53 base stage is drawn high, and turns off BCP53,
It plays a protective role.
The relay disconnects the triode Q502 that logic control circuit unit includes positive-negative-positive, the base stage of triode Q502
The relay cut-off signal of MCU output is connected by resistance, collector connects the triode Q505 of NPN type, three poles by resistance
The collector of pipe Q505 passes through the triode Q500 of resistance R504 connection positive-negative-positive, the collector connecting triode of triode Q500
The base stage of Q501.
I.e. when relay cut-off signal (i.e. IG_PB14 provides low level signal) of MCU output, triode Q502 is led
Logical, Q505 base stage is raised, and Q505 conducting, Q500 base stage become low level, Q500 conducting, so that Q501 base stage becomes high electricity
Flat, Q501 shutdown, self-locking state releases, and IG1 relay does not export, and IG1 relay disconnects.
The freewheeling circuit unit includes that sustained diode 501 and diode D503, IG1_RELAY_OUT pass through afterflow
Diode D501 ground connection, while passing through the base stage of diode D503 connecting triode Q503.
Since relay is inductive load, induced voltage is absorbed using sustained diode 501.To prevent BCP53 disconnected
It opens moment, induced electromotive force, which generates spike, causes Q503 to be damaged because backward voltage is excessive, therefore has added diode D503, will be anti-
To the rapid clamper of voltage to 0.7 volt, play the role of protecting Q503.
When work:
MCU can control the connection of IG1 relay, IG1 relay once connect, relay latching circuit unit it is self-locking
Logic is self-locking by its state, and the logic of closing of relay closure logic circuit unit no longer works；Only when MCU issues relay
Cut-off signal has current foldback circuit in the output end of control signal, and when electric current is excessive, IG1 relay disconnects automatically.IG1 after
Electrical apparatus control circuit is built using discrete component, and cost is relatively low, reliable performance.
ESCL power supply does not use internal electric source by introducing outside PEPS controller.PEPS controller is responsible for control pair by MCU
The power supply of ESCL and acts it and controls with for ground, communication protocol LIN.Since the security level of ESCL is relatively high, therefore
ESCL driving is required reliable and stable.
In embodiment provided herein, it should be understood that disclosed technology contents, it can be by another way
It realizes.Such as the division of the unit, it can be a kind of logical function partition, can there is other division side in actual implementation
Formula, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored, or not
It executes.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be to be connect by some
Mouthful, the indirect coupling or communication connection of unit or module can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of automobile PEPS system electronic steering column lock safe power supply circuit, it is characterised in that: input electricity including power supply control
Road, logic control circuit, the first driving circuit and the second driving circuit,
It is defeated that the power supply control input circuit passes sequentially through logic control circuit, the anode of the first driving circuit control ESCL power supply
Enter end；
It is defeated that the power supply control input circuit passes sequentially through logic control circuit, the cathode of the second driving circuit control ESCL power supply
Enter end；
The output signal of the power supply control input circuit includes the port MCU of the output signal of IG1 relay, PEPS controller
Signal and MCU reset signal.
2. a kind of automobile PEPS system electronic steering column lock safe power supply circuit according to claim 1, it is characterised in that:
The output signal of IG1 relay is controlled by IG1 control relay circuit, the IG1 control relay circuit includes relay
It is closed logic circuit unit, relay latching circuit unit, current foldback circuit unit, relay and disconnects logic control circuit list
Member and freewheeling circuit unit；
The relay closure logic circuit unit includes the triode Q507 of NPN type, and the base stage of triode Q507 passes through resistance
The IG1 drive output signal IG1_OPEN_PC14 of MCU is connected, collector passes through the triode of resistance R508 connection positive-negative-positive
The base stage of Q501, the collector of triode Q501 pass through the base stage of the triode Q504 of resistance R505 connection NPN type, triode
Base stage of the collector of Q504 by the triode BCP53 of resistance R503 connection positive-negative-positive, the emitter of the triode BCP53
Connect power supply VB2, collector passes through the output signal IG1_RELAY_OUT of resistance R500 connection IG1 relay；
The relay latching circuit unit includes the triode Q508 of NPN type, and the base stage of triode Q508 passes through resistance R510
The collector of resistance R505 and triode Q501 are connected simultaneously, and the collector of triode Q508 passes through resistance R509 connecting triode
The base stage of Q501；
The current foldback circuit unit includes the triode Q503 of NPN type, on the one hand the base stage of triode Q503 passes sequentially through
Diode D502, resistance R501 and resistance R500 connection IG1_RELAY_OUT, are on the other hand grounded by resistance R507, transmitting
Pole passes through the triode Q506 of resistance R506 connection positive-negative-positive by resistance R502 connection IG1_RELAY_OUT, collector；Three poles
The base stage of the collector connecting triode BCP53 of pipe Q506；
The relay disconnects the triode Q502 that logic control circuit unit includes positive-negative-positive, and the base stage of triode Q502 passes through
Resistance connects the relay cut-off signal of MCU output, and collector connects the triode Q505 of NPN type, triode by resistance
The collector of Q505 passes through the triode Q500 of resistance R504 connection positive-negative-positive, the collector connecting triode of triode Q500
The base stage of Q501；
The freewheeling circuit unit includes that sustained diode 501 and diode D503, IG1_RELAY_OUT pass through two pole of afterflow
Pipe D501 ground connection, while passing through the base stage of diode D503 connecting triode Q503.
3. a kind of automobile PEPS system electronic steering column lock safe power supply circuit according to claim 1, it is characterised in that:
The logic control circuit includes the triode Q5002 of positive-negative-positive, and the base stage of triode Q5002 is accessed by diode D5001
RESET signal, emitter meet power supply VCC50, and collector connects the base stage of the triode Q5001 of NPN type by diode, simultaneously
The output signal of IG1 relay passes sequentially through the base stage of resistance R5025, diode D5004 connecting triode Q5001；Triode
Collector of the collector of Q5001 by the triode Q5006 of resistance R5000 connection positive-negative-positive, the emitter of triode Q5006
Power supply VCC50 is met, base stage accesses input signal MCU_IO_PWR by resistance；The collector of triode Q5001 is also connected with simultaneously
The base stage of the triode Q5007 of NPN type, the emitter ground connection of the triode Q5007, collector connection the first driving electricity
The input terminal on road；On the other hand, the base stage of triode Q5001 also connects the base stage of the triode Q5003 of NPN type by resistance,
The collector of the triode Q8101 of the collector connection positive-negative-positive of triode Q5003, the base stage of triode Q8101 are connected by resistance
Meet input signal MCU_IO_GND；The collector of triode Q5003 passes through resistance R5016 connection second driving circuit simultaneously
Control terminal.
4. a kind of automobile PEPS system electronic steering column lock safe power supply circuit according to claim 1, it is characterised in that:
First driving circuit is intelligent switch chip, model BTS5010-1EKA.
5. a kind of automobile PEPS system electronic steering column lock safe power supply circuit according to claim 1, it is characterised in that:
Second driving circuit is N-channel MOS pipe, model BTS3046SDL.
6. a kind of automobile PEPS system electronic steering column lock safe power supply circuit according to claim 1, it is characterised in that:
Using the form of electric resistance partial pressure, the output voltage of the first driving circuit is acquired by a port AD of MCU, is constituted anti-
Current feed circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920289503.3U CN209634429U (en) | 2019-03-07 | 2019-03-07 | A kind of automobile PEPS system electronic steering column lock safe power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920289503.3U CN209634429U (en) | 2019-03-07 | 2019-03-07 | A kind of automobile PEPS system electronic steering column lock safe power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209634429U true CN209634429U (en) | 2019-11-15 |
Family
ID=68495524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920289503.3U Expired - Fee Related CN209634429U (en) | 2019-03-07 | 2019-03-07 | A kind of automobile PEPS system electronic steering column lock safe power supply circuit |
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| CN (1) | CN209634429U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109774651A (en) * | 2019-03-07 | 2019-05-21 | 中国汽车技术研究中心有限公司 | A kind of automobile PEPS system electronic steering column lock safe power supply circuit |
| CN109774651B (en) * | 2019-03-07 | 2024-10-29 | 中国汽车技术研究中心有限公司 | Safety power supply circuit of electronic steering column lock of PEPS (Passive entry and passive entry) system of automobile |
-
2019
- 2019-03-07 CN CN201920289503.3U patent/CN209634429U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109774651A (en) * | 2019-03-07 | 2019-05-21 | 中国汽车技术研究中心有限公司 | A kind of automobile PEPS system electronic steering column lock safe power supply circuit |
| CN109774651B (en) * | 2019-03-07 | 2024-10-29 | 中国汽车技术研究中心有限公司 | Safety power supply circuit of electronic steering column lock of PEPS (Passive entry and passive entry) system of automobile |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |