CN204870853U - Vehicle ECU upgrades with supply control circuit and uses vehicle of this circuit - Google Patents
Vehicle ECU upgrades with supply control circuit and uses vehicle of this circuit Download PDFInfo
- Publication number
- CN204870853U CN204870853U CN201520479055.5U CN201520479055U CN204870853U CN 204870853 U CN204870853 U CN 204870853U CN 201520479055 U CN201520479055 U CN 201520479055U CN 204870853 U CN204870853 U CN 204870853U
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- switch
- relay
- ecu
- vehicle
- circuit
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Abstract
The utility model discloses a vehicle ECU upgrades with supply control circuit and uses vehicle of this circuit, electric control switch and relay are parallelly connected in the utilization, make the relay rather than loop formation auto -lock return circuit, as if electric on the whole car, electric actuation on the relay, ECU is supplied power by whole car, participates in the vehicle control, whole other electrical apparatus of car are down during the electricity, the procedure if ECU need upgrade, and then the relay keeps the auto -lock state to begin to upgrade, keeps the power supply stable at the ECU program upgrade in -process, and the upgrading finishes, and ECU can the control relay disconnection, does not have leakage current system power dissipation after the outage for zero, if the vehicle need charge, ECU is by the machine power supply control vehicle and the quick -witted state that charges of charging. This circuit is upgraded when the vehicle stop is operateed, does not completely influence vehicle normal use.
Description
Technical field
The utility model belongs to electronic technology field, is specifically related to a kind of vehicle ECU upgrading power-supplying circuit and uses the vehicle of this circuit.
Background technology
Along with the fast development of Eltec, computer technology and the communication technology, embedded system has been widely used in the fields such as industry, military affairs, communication, information household appliances, but in the face of continuing to bring out of up-to-date technology and improving constantly systemic-function, performance and scale requirements, developer must upgrade to system in time for the demand of client or safeguard, to extend system operating cycles, improve system performance, strengthen system flexibility.
Traditional upgrade method is generally, by service provider, data packet is supplied to vehicle maintenance side, automobile is reached position, vehicle maintenance side by the staff of vehicle maintenance side (4S shop) again Advise By Wire car owner, after this controlled vehicle-mounted electrical unit is connected to computing machine by wired mode by staff, and the upgrade data of Computer Storage is imported in controlled vehicle-mounted electrical unit, then control its run ROMPaq realize software upgrading.But, above-mentioned upgrade method is very loaded down with trivial details, brings inconvenience not only to the trip of car owner, and brings a lot of burden for the work of vehicle maintenance side.
In recent years, based on the remote online upgrading scheme of the built-in system software of GPRS, solve substantial amounts preferably and distribution limit wider equipment on-line upgrading or safeguard problem.But remote upgrade technology is less in auto trade application, especially existing method can not realize upgrading not affecting under vehicle service condition, therefore solves the commercial vehicle/comm..vehicle that this problem is all in operation state to the most of the time significant.
Utility model content
The purpose of this utility model is to provide a kind of vehicle ECU upgrading power-supplying circuit, cannot realize carrying out not affecting under vehicle service condition, provide a kind of vehicle using this circuit simultaneously to solve existing ECU remote upgrade.
In order to realize above object, the technical scheme that the utility model adopts is:
A kind of vehicle ECU upgrading power-supplying circuit, comprise ECU (Electrical Control Unit), power supply, upper electric control switch and relay, described power supply is connected to the control end of ECU (Electrical Control Unit) by control circuit, and is connected to the feeder ear of ECU (Electrical Control Unit) by feed circuit; Described control circuit is serially connected with latching circuit and relay control switch that first group of switch of relay and relay coil form, first group of switch in parallel of described upper electric control switch and relay, described relay control switch is subject to automatically controlled unit controls; Described feed circuit are serially connected with second group of switch of relay.
Second group of switch of described relay comprises two switches, and first switch is used for being connected with power supply, and second switch is used for being connected with battery charger, and the common port of two switches is used for being connected with the feeder ear of ECU (Electrical Control Unit).
First group of switch and second group of switch of described relay are the switch of synchronization action.
Described relay control switch is aerotron or metal-oxide-semiconductor or optocoupler.
Second group of switch of described relay and upper electric control switch are also connected in parallel.
A kind of vehicle, comprise ECU upgrading power-supplying circuit, this circuit comprises ECU (Electrical Control Unit), power supply, upper electric control switch and relay, and described power supply is connected to the control end of ECU (Electrical Control Unit) by control circuit, and is connected to the feeder ear of ECU (Electrical Control Unit) by feed circuit; Described control circuit is serially connected with latching circuit and relay control switch that first group of switch of relay and relay coil form, first group of switch in parallel of described upper electric control switch and relay, described relay control switch is subject to automatically controlled unit controls; Described feed circuit are serially connected with second group of switch of relay.
Second group of switch of described relay comprises two switches, and first switch is used for being connected with power supply, and second switch is used for being connected with battery charger, and the common port of two switches is used for being connected with the feeder ear of ECU (Electrical Control Unit).
First group of switch and second group of switch of described relay are the switch of synchronization action.
Described relay control switch is aerotron or metal-oxide-semiconductor or optocoupler.
Second group of switch of described relay and upper electric control switch are also connected in parallel.
Vehicle ECU upgrading power-supplying circuit of the present utility model utilizes upper electric control switch in parallel with relay, makes relay and its coil form self-locking circuit, if car load powers on, relay powers on automatic pick, and ECU is powered by car load, participation wagon control; Under other electrical equipment of car load during electricity, if ECU needs ROMPaq, then relay keeps self-locking state to start upgrading, keep power supply stable at ECU program upgrade process peripheral circuit, upgrade complete, ECU can disconnect by control relay, disconnect with storage battery, stopped drain current.This circuit stops upgrading during operation at vehicle, does not affect vehicle completely and normally uses.
The utility model also realizes by combinationally using of relay switch the switching that external charging machine is powered and vehicular power-bottle is powered, and when accessing battery charger, making ECU can monitor battery charger state, and being independent of each other with vehicular power-bottle.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model vehicle ECU upgrading power-supplying circuit embodiment;
Fig. 2 is the circuit diagram of another embodiment of the utility model vehicle ECU upgrading power-supplying circuit.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
Be illustrated in figure 1 the circuit diagram of the utility model vehicle ECU upgrading power-supplying circuit embodiment, as seen from the figure, this circuit comprises ECU (Electrical Control Unit) U1, power supply BT1, upper electric control switch S1 and relay K 1, here ECU (Electrical Control Unit) is called for short ECU, it can store temporary file, and possesses Bootloader function; Power supply BT1 is connected to the control end Ctrl of ECU (Electrical Control Unit) U1 by control circuit, and BT1 is connected to the feeder ear of ECU (Electrical Control Unit) U1 by feed circuit; Control circuit is serially connected with first group of switch in parallel of latching circuit that first group of switch of relay and relay coil form and relay control switch Q1, upper electric control switch S1 and relay, and relay control switch Q1 controls by ECU (Electrical Control Unit) U1; Feed circuit are serially connected with second group of switch of relay.
Further, second group of switch of relay comprises two switches, first switch is used for being connected (Vbat) with power supply BT1, second switch is used for being connected with battery charger (Vcharge), two switches adopt single-pole double-throw type structure, first switch is open contact, and second is normally closed contact, and its common port is connected with the feeder ear of ECU (Electrical Control Unit) U1.
Further, second group of switch of relay and upper electric control switch are also connected in parallel, and its short circuit point is used for being connected with the power end of ECU (Electrical Control Unit) U1.
First group of switch of relay adopts open contact, and it is connected in series with relay coil and forms self-locking circuit, and single pole double throw switch selected by first group of switch of relay here, and its normally closed contact is unsettled.
First group of switch and second group of switch of the present embodiment repeat circuit are the switch of synchronization action, and the combination of these two groups of switches can adopt double pole double throw formula structure to realize.
In addition, relay control switch Q1 can adopt aerotron, and the base stage of this aerotron is connected with the control end Ctrl of ECU (Electrical Control Unit) U1 by resistance R2, one end of its collector connecting relay coil, its grounded emitter.Certainly, relay control switch here also can by other circuit such as other controller parts such as metal-oxide-semiconductor, optocoupler realize.
The upper electric control switch S1 of the present embodiment is car load power switch, closes and power on before vehicle operating.
In addition, be also connected with diode D1 between upper electric control switch S1 and relay coil, first group of relay is also connected with diode D2 between switch and relay coil; Also be serially connected with diode D3 between the power end of upper electric control switch S1 and U1, second group of relay is also serially connected with diode D4 between switch and the power end of U1; The two ends of relay coil are parallel with sustained diode 5, can afterflow to realize the relay coil when power-off.
Resistance R1 is connected with between the power end of ECU (Electrical Control Unit) U1 and control end.
The power supply of the present embodiment is vehicle power, can be storage battery, electrokinetic cell, can also be super capacitor, all can use as long as meet power supply needs.The positive pole of power supply is connected with feed circuit with control circuit, and namely on its positive pole, first group of switch of electric control switch S1, relay is connected with second group of switch of relay, its negative earth.
As shown in Figure 2, in the present embodiment, connect a voltage-releasing voltage stabilizer U2 at the power end place of ECU (Electrical Control Unit), to ensure the stability of power supply.
The utility model additionally provides a kind of vehicle using above-mentioned ECU upgrading power-supplying circuit.
In Fig. 1, Vcharge is that external charging machine is powered, and provides work electricity consumption when Vehicular charging to ECU (Electrical Control Unit), makes ECU (Electrical Control Unit) monitor battery charger mode of operation; Vbat is battery supply, powers through relay K 1 when writing with a brush dipped in Chinese ink program to ECU (Electrical Control Unit); Ctrl is control signal, for passing through the whether charged of relay control switch Q1 control relay coil.
Principle of work of the present utility model and process as follows: when vehicle is in charge condition, the normally closed contact of two groups of switches of K1 is connected, and now S1 disconnects, and provides electricity consumption by external charging machine Vcharge to vehicle; When normal vehicle operation, close and go up electric control switch S1, ECU (Electrical Control Unit) U1 control Q1 conducting, BT1 is powered to relay coil by diode D1, thus make the open contact adhesive of relay two groups of switches, now BT1 by K1 Vbat end and diode D4 power to ECU (Electrical Control Unit), while BT1 also powered to relay coil by relay K 1, diode D2, make it form energising self-locking circuit; When electricity under detecting test of vehicle to car load, (under car load here, electro-detection is routine techniques, no longer specifically describe in detail) time, if ECU needs ROMPaq (can accept upgrade data in advance), then relay keeps self-locking state to start upgrading, upgrade complete, Ctrl control signal exports and drags down by ECU, and control relay disconnects, and realizes complete power-off.
Above embodiment only understands core concept of the present utility model for helping; the utility model can not be limited with this; for those skilled in the art; every according to thought of the present utility model; the utility model is modified or equivalent replacement; any change done in specific embodiments and applications, all should be included within protection domain of the present utility model.
Claims (10)
1. a vehicle ECU upgrading power-supplying circuit, it is characterized in that: comprise ECU (Electrical Control Unit), power supply, upper electric control switch and relay, described power supply is connected to the control end of ECU (Electrical Control Unit) by control circuit, and is connected to the feeder ear of ECU (Electrical Control Unit) by feed circuit; Described control circuit is serially connected with latching circuit and relay control switch that first group of switch of relay and relay coil form, first group of switch in parallel of described upper electric control switch and relay, described relay control switch is subject to automatically controlled unit controls; Described feed circuit are serially connected with second group of switch of relay.
2. vehicle ECU upgrading power-supplying circuit according to claim 1, it is characterized in that: second group of switch of described relay comprises two switches, first switch is used for being connected with power supply, second switch is used for being connected with battery charger, and the common port of two switches is used for being connected with the feeder ear of ECU (Electrical Control Unit).
3. vehicle ECU upgrading power-supplying circuit according to claim 1, is characterized in that: first group of switch and second group of switch of described relay are the switch of synchronization action.
4. vehicle ECU upgrading power-supplying circuit according to claim 1, is characterized in that: described relay control switch is aerotron or metal-oxide-semiconductor or optocoupler.
5. the vehicle ECU upgrading power-supplying circuit according to Claims 1 to 4 any one, is characterized in that: second group of switch of described relay and upper electric control switch are also connected in parallel.
6. a vehicle, it is characterized in that: comprise ECU upgrading power-supplying circuit, this circuit comprises ECU (Electrical Control Unit), power supply, upper electric control switch and relay, described power supply is connected to the control end of ECU (Electrical Control Unit) by control circuit, and is connected to the feeder ear of ECU (Electrical Control Unit) by feed circuit; Described control circuit is serially connected with latching circuit and relay control switch that first group of switch of relay and relay coil form, first group of switch in parallel of described upper electric control switch and relay, described relay control switch is subject to automatically controlled unit controls; Described feed circuit are serially connected with second group of switch of relay.
7. vehicle according to claim 6, it is characterized in that: second group of switch of described relay comprises two switches, first switch is used for being connected with power supply, and second switch is used for being connected with battery charger, and the common port of two switches is used for being connected with the feeder ear of ECU (Electrical Control Unit).
8. vehicle according to claim 6, is characterized in that: first group of switch and second group of switch of described relay are the switch of synchronization action.
9. vehicle according to claim 6, is characterized in that: described relay control switch is aerotron or metal-oxide-semiconductor or optocoupler.
10. the vehicle according to claim 6 ~ 9 any one, is characterized in that: second group of switch of described relay and upper electric control switch are also connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520479055.5U CN204870853U (en) | 2015-07-02 | 2015-07-02 | Vehicle ECU upgrades with supply control circuit and uses vehicle of this circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520479055.5U CN204870853U (en) | 2015-07-02 | 2015-07-02 | Vehicle ECU upgrades with supply control circuit and uses vehicle of this circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204870853U true CN204870853U (en) | 2015-12-16 |
Family
ID=54815268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520479055.5U Withdrawn - After Issue CN204870853U (en) | 2015-07-02 | 2015-07-02 | Vehicle ECU upgrades with supply control circuit and uses vehicle of this circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204870853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034992A (en) * | 2015-07-02 | 2015-11-11 | 郑州宇通客车股份有限公司 | Power supply control circuit for ECU upgrading of vehicle and vehicle using circuit |
-
2015
- 2015-07-02 CN CN201520479055.5U patent/CN204870853U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034992A (en) * | 2015-07-02 | 2015-11-11 | 郑州宇通客车股份有限公司 | Power supply control circuit for ECU upgrading of vehicle and vehicle using circuit |
| CN105034992B (en) * | 2015-07-02 | 2017-04-05 | 郑州宇通客车股份有限公司 | A kind of vehicle ECU upgradings power-supplying circuit and the vehicle using the circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20170405 |
|
| AV01 | Patent right actively abandoned |