CN204515378U - A kind of automobile-used program remote upgrading control circuit - Google Patents
A kind of automobile-used program remote upgrading control circuit Download PDFInfo
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- CN204515378U CN204515378U CN201520056249.4U CN201520056249U CN204515378U CN 204515378 U CN204515378 U CN 204515378U CN 201520056249 U CN201520056249 U CN 201520056249U CN 204515378 U CN204515378 U CN 204515378U
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- ecu
- power supply
- control unit
- electrical control
- relay
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Abstract
The utility model discloses a kind of automobile-used program remote upgrading control circuit, comprise the ECU (Electrical Control Unit) and the power supply that are received remote upgrade routine data by communication unit, power supply supplies to be electrically connected by the power end of gauge tap with communication unit and ECU (Electrical Control Unit), ECU (Electrical Control Unit) is also connected with power supply by a relay with the power end of communication unit, and the coil of relay is connected between the upgrading control end of power supply and ECU (Electrical Control Unit).Automobile-used program remote upgrading control circuit of the present utility model increases relay feed circuit between ECU (Electrical Control Unit) and power supply, relay is by automatically controlled unit controls, power supply is kept in program updates process, ECU (Electrical Control Unit) is at period reception, the storage program of working on power, upgrading when lower electricity stops, the controlled power-off of the complete relay of program upgrade, reduces power consumption.This control circuit realizes remote upgrade function when not affecting car operation, is applicable to the commercial car that works long hours and uses, and circuit to change little cost low.
Description
Technical field
The utility model relates to a kind of automobile-used program remote upgrading control circuit.
Background technology
Along with the fast development of electronic technology, 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 new 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 life cycle, improve system performance, strengthen system flexibility.
Traditional upgrade method is generally, by service provider, 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 range wider equipment on-line upgrading or safeguard problem.But remote upgrade technology is less in automobile industry application, especially existing method can not realize upgrading not affecting under vehicle service condition, therefore solves the commercial car 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 automobile-used program remote upgrading control circuit, cannot realize carrying out not affecting under vehicle service condition to solve existing remote upgrade.
In order to realize above object, the technical scheme that the utility model adopts is: a kind of automobile-used program remote upgrading control circuit, comprise the ECU (Electrical Control Unit) and the power supply that are received remote upgrade routine data by communication unit, described power supply supplies to be electrically connected by the power end of gauge tap with communication unit and ECU (Electrical Control Unit), described ECU (Electrical Control Unit) is also connected with power supply by a relay with the power end of communication unit, and the coil of described relay is connected between the upgrading control end of power supply and ECU (Electrical Control Unit).
The coil two ends of described relay are parallel with a fly-wheel diode.
The normally opened contact for relay that described ECU (Electrical Control Unit) and the power end of communication unit are connected with power supply.
Described power supply is vehicle power.
Automobile-used program remote upgrading control circuit of the present utility model increases relay feed circuit between ECU (Electrical Control Unit) and power supply, relay is by automatically controlled unit controls, power supply is kept in program updates process, ECU (Electrical Control Unit) is at period reception, the storage program of working on power, upgrading when lower electricity stops, the controlled power-off of the complete relay of program upgrade, reduces power consumption.This control circuit realizes remote upgrade function when not affecting car operation, is applicable to the commercial car that works long hours and uses, and circuit to change little cost low.
Accompanying drawing explanation
The circuit theory diagrams of the automobile-used program remote upgrading control circuit of Fig. 1 the utility model;
Fig. 2 is the process flow diagram of program upgrade.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
Be illustrated in figure 1 the circuit theory diagrams of the utility model automobile-used program remote upgrading control circuit embodiment, as seen from the figure, this circuit comprises the ECU (Electrical Control Unit) U1 and the power supply BT1 that are received remote upgrade routine data by communication unit U2, here ECU (Electrical Control Unit) can store temporary file, and possesses Bootloader function; Power supply supplies to be electrically connected with the power end of communication unit and ECU (Electrical Control Unit) U1 by gauge tap S1, ECU (Electrical Control Unit) U1 is also connected with power supply by a relay K 1 with the power end of communication unit U2, and the coil of relay is connected between the upgrading control end of power supply and ECU (Electrical Control Unit).
The positive pole of power supply BT1 and gauge tap S1 and the common port (stationary contact) of relay K 1 and one end of coil thereof are connected, the negative pole of BT1 is connected with the negative power end of ECU (Electrical Control Unit) and communication unit, the other end of S1 and the moving contact of K1 are connected with the positive power source terminal of ECU (Electrical Control Unit) and communication unit, provide work electricity consumption to it; The coil other end of K1 is connected with the upgrading control end Ctrl of ECU (Electrical Control Unit).
The normally opened contact for relay K 1 that the ECU (Electrical Control Unit) of the present embodiment and the power end of communication unit are connected with power supply, relay K 1 here selects single-pole double-throw switch (SPDT), and its normally closed contact is unsettled.Certainly, normally closed contact also can be adopted to be communicated with power supply and ECU (Electrical Control Unit), communication unit, as long as change the signal of ECU (Electrical Control Unit) control end.
The power supply of the present embodiment is vehicle power, can be accumulator, electrokinetic cell, can also be super capacitor, all can use as long as meet power supply needs.
In addition, be parallel with a sustained diode 1 at the coil two ends of relay, can afterflow to realize when power-off relay coil, reduce electromagnetic interference (EMI).
In Fig. 1, Vams is normal vehicle operation power supply, provides the electricity consumption that normally works to ECU (Electrical Control Unit), and when quitting work, S1 is electric under disconnecting Vams; Vbat is that vehicle quits work power supply, gives ECU (Electrical Control Unit), communication unit powers when writing with a brush dipped in Chinese ink program through relay K 1; Ctrl is control signal, outputs signal pilot relay adhesive during ROMPaq, power down during preventing upgrading.
As shown in Figure 2, principle of work of the present utility model and process as follows: S1 closes, and Vehicular system starts normal work, if ECU (Electrical Control Unit) U1 receives the upgrade of communication unit, then by Ctrl signal control relay K1 adhesive, then reception program file; When complete the and S1 of process accepts disconnects (namely vehicle quits work), ECU (Electrical Control Unit) starts ROMPaq, upgrades completely to be disconnected by Ctrl signal control relay K1.
The coil power supply part of the utility model repeat circuit K1 realizes in ECU (Electrical Control Unit) outside, also can be integrated in ECU (Electrical Control Unit) inside.
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 (4)
1. an automobile-used program remote upgrading control circuit, comprise the ECU (Electrical Control Unit) and the power supply that are received remote upgrade routine data by communication unit, it is characterized in that: described power supply supplies to be electrically connected by the power end of gauge tap with communication unit and ECU (Electrical Control Unit), described ECU (Electrical Control Unit) is also connected with power supply by a relay with the power end of communication unit, and the coil of described relay is connected between the upgrading control end of power supply and ECU (Electrical Control Unit).
2. automobile-used program remote upgrading control circuit according to claim 1, is characterized in that: the coil two ends of described relay are parallel with a fly-wheel diode.
3. automobile-used program remote upgrading control circuit according to claim 1 and 2, is characterized in that: the normally opened contact for relay that described ECU (Electrical Control Unit) and the power end of communication unit are connected with power supply.
4. automobile-used program remote upgrading control circuit according to claim 3, is characterized in that: described power supply is vehicle power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520056249.4U CN204515378U (en) | 2015-01-27 | 2015-01-27 | A kind of automobile-used program remote upgrading control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520056249.4U CN204515378U (en) | 2015-01-27 | 2015-01-27 | A kind of automobile-used program remote upgrading control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204515378U true CN204515378U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520056249.4U Expired - Fee Related CN204515378U (en) | 2015-01-27 | 2015-01-27 | A kind of automobile-used program remote upgrading control circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN204515378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017076147A1 (en) * | 2015-11-04 | 2017-05-11 | 上海斐讯数据通信技术有限公司 | Remote upgrade system |
| CN113353004A (en) * | 2021-06-01 | 2021-09-07 | 新石器慧通（北京）科技有限公司 | Power supply control circuit and method supporting vehicle VCU background remote upgrade and unmanned vehicle |
-
2015
- 2015-01-27 CN CN201520056249.4U patent/CN204515378U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017076147A1 (en) * | 2015-11-04 | 2017-05-11 | 上海斐讯数据通信技术有限公司 | Remote upgrade system |
| CN113353004A (en) * | 2021-06-01 | 2021-09-07 | 新石器慧通（北京）科技有限公司 | Power supply control circuit and method supporting vehicle VCU background remote upgrade and unmanned vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150729 Termination date: 20190127 |