CN202100366U - Protecting device of automobile for restraining abnormal starting of engine - Google Patents
Protecting device of automobile for restraining abnormal starting of engine Download PDFInfo
- Publication number
- CN202100366U CN202100366U CN 201120207558 CN201120207558U CN202100366U CN 202100366 U CN202100366 U CN 202100366U CN 201120207558 CN201120207558 CN 201120207558 CN 201120207558 U CN201120207558 U CN 201120207558U CN 202100366 U CN202100366 U CN 202100366U
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- CN
- China
- Prior art keywords
- relay
- starting
- supply
- gear
- power supply
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The utility model provides a protecting device of an automobile for restraining the abnormal starting of an engine, comprising an automobile storage battery (10), a starting electrical machine (20) and a control circuit (30) arranged between the automobile storage battery (10) and the starting electrical machine (20), wherein the control circuit (30) comprises a master control unit, namely an MCU1 (Microprogrammed Control Unit 1), a starting switch (31), a starting relay (321) and a supply relay (322), and a coil of the starting relay (321) is electrically connected with the automobile storage battery (10) by a normally-closed contact of the supply relay (322). The starting relay is connected with the storage battery by the normally-closed contact of the supply relay instead of being directly connected with the storage battery, and the starting relay is controlled by not only the master control unit but also the supply relay, so that the protecting device can play a part in protection preferably due to one more guarantee, thus preventing the starting electrical machine from being damaged due to malfunction.
Description
Technical field
The utility model relates to the automobile control technique, particularly the control technique of motor start circuit.
Background technique
In the existing technology, motor start circuit is that the coil of starting relay directly connects car accumulator, when ignition switch rotates to the igniting gear, and automobile starting.And the coil of starting relay still connects car accumulator at this moment, and when providing once more actuating signal if main control chip breaks down, starting relay starts starting electrical machinery adhesive once more once more, causes the damage of starting electrical machinery easily.
The model utility content
The utility model provides a kind of automobile to suppress the protective gear that engine abnormity starts; Employing is with the normally closed electric shock connection storage battery of starting relay coil through supply relay; Make starting relay can not directly connect storage battery, solve in the existing technology and produce the misoperation technical problem of damage easily because of starting electrical machinery.
The utility model is to solve the problems of the technologies described above this protective gear that provides to comprise car accumulator, starting electrical machinery and the control circuit that is provided with between the two; Said control circuit comprises main control unit MCU; The enable switch and the control relay group that connect main control unit MCU; Said enable switch comprises igniting gear and power supply gear at least; Said control relay group comprises the relay of counting equal number with said enable switch gear, includes starting relay and supply relay at least, and the coil of said starting relay connects said car accumulator through the normally closed electric shock of supply relay; Said control circuit also comprises the monitoring unit MCU that connects said main control unit MCU.When at first ignition switch being rotated to the igniting gear, starting relay action, automobile starting; Behind the automobile starting, the ignition switch self-return is to the power supply gear, and the normally closed electric shock of supply relay is broken off, and the starting relay coil must not be electric, and starting electrical machinery can't start once more.
Said enable switch comprises four gears of ACC power supply, first power supply, second power supply and igniting gear; Said supply relay is divided into first supply relay and second supply relay; Said first supply relay and second supply relay be first power supply and the second power supply gear of corresponding said enable switch respectively, and the coil of said starting relay connects said car accumulator through the normally closed electric shock of second supply relay, behind the automobile starting; Ignition switch self-return to the second power supply gear; The normally closed electric shock of second supply relay is broken off, and the starting relay coil must not be electric, and starting electrical machinery can't start once more.
Starting relay does not directly connect storage battery in the utility model; But to connect storage battery through the normally closed electric shock of supply relay; Starting relay also receives the control of supply relay except that receiving main control unit control, so many one heavily guarantees; Can play a protective role more effectively, prevent to damage starting electrical machinery because of misoperation.
Description of drawings
Fig. 1 is the theory diagram of the said protective gear of the utility model.Fig. 2 is the control principle block diagram of the utility model.Fig. 3 is the utility model circuit connection schematic representation.
Embodiment
Specific embodiment in conjunction with above-mentioned description of drawings the utility model.
By knowing among Fig. 1 to Fig. 3; A kind of automobile suppresses the protective gear that engine abnormity starts; Comprise car accumulator 10, starting electrical machinery 20 and the control circuit 30 that is provided with between the two; Said control circuit 30 comprises main control unit MCU1; The enable switch 31 and control relay group 32 that connect main control unit MCU1, said enable switch 31 comprise igniting gear and power supply gear at least, and said control relay group 32 comprises the relay of counting equal number with said enable switch 31 gears; At least include starting relay 321 and supply relay 322, the coil of said starting relay 321 connects said car accumulator 10 through the normally closed electric shock of supply relay 322.Starting relay does not only depend on main control unit MCU1 control in the utility model, but also is controlled by supply relay, under starting state not; Car accumulator can be given the starting relay coil power supply through the normally closed electric shock of supply relay, and when ignition switch was rotated to the igniting gear, main control unit MCU1 detected the user and presses the enable switch module; Confirm legal startup through contrast; Main control MCU begins to drive the starting motor relay, starting relay action, automobile starting; Behind the automobile starting, the ignition switch self-return is to the power supply gear, supply relay get electric after, its normally closed electric shock is broken off; The starting relay coil must not be electric, and starting electrical machinery can't start once more, at this moment, even main control unit MCU1 sends actuating signal; But because the starting relay akinesia, so starting electrical machinery also can't start once more; Have only when artificially ignition switch being rotated to the igniting gear once more, starting electrical machinery could move once more, has protected starting electrical machinery effectively.
By knowing among Fig. 2, said control circuit 30 also comprises the monitoring unit MCU2 that connects said main control unit MCU1, monitoring unit MCU2; In the engine starting process; Starting motor monitoring cell MCU2 picked up counting to the output control time of main control unit MCU1, and when monitoring main control unit MCU1 output above the predefined output control time (being generally 4 seconds), monitoring cell MCU2 will cut off the control of starting relay; Thereby make the starting motor outage, the protection motor is not burnt.
By knowing among Fig. 1; Said enable switch 31 comprises four gears of ACC power supply, first power supply, second power supply and igniting gear; Said supply relay 322 is divided into first supply relay 3221 and second supply relay 3222; Said first supply relay 3221 and second supply relay 3222 be first power supply and the second power supply gear of corresponding said enable switch 31 respectively; ACC supply relay 323 corresponding above-mentioned ACC power supply gears, the coil of said starting relay 321 connects said car accumulator 10 through the normally closed electric shock of second supply relay 3222.Behind the automobile starting, ignition switch self-return to the second power supply gear, the normally closed electric shock of second supply relay is broken off, and the starting relay coil must not be electric, and starting electrical machinery can't start once more.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (3)
1. an automobile suppresses the protective gear that engine abnormity starts; Comprise car accumulator (10), starting electrical machinery (20) and the control circuit (30) that is provided with between the two; Said control circuit (30) comprises main control unit MCU1; The enable switch (31) and the control relay group (32) that connect main control unit MCU1; Said enable switch (31) comprises igniting gear and power supply gear at least; Said control relay group (32) comprises the relay of counting equal number with said enable switch (31) gear, includes starting relay (321) and supply relay (322) at least, it is characterized in that: the coil of said starting relay (321) connects said car accumulator (10) through the normally closed electric shock of supply relay (322).
2. suppress the protective gear that engine abnormity starts according to the said automobile of claim 1, it is characterized in that: said control circuit (30) also comprises the monitoring unit MCU2 that connects said main control unit MCU1.
3. suppress the protective gear that engine abnormity starts according to claim 1 or 2 said automobiles; It is characterized in that: said enable switch (31) comprises four gears of ACC power supply, first power supply, second power supply and igniting gear; Said supply relay (322) is divided into first supply relay (3221) and second supply relay (3222); Said first supply relay (3221) and second supply relay (3222) be first power supply and the second power supply gear of corresponding said enable switch (31) respectively, and the coil of said starting relay (321) connects said car accumulator (10) through the normally closed electric shock of second supply relay (3222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120207558 CN202100366U (en) | 2011-06-20 | 2011-06-20 | Protecting device of automobile for restraining abnormal starting of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120207558 CN202100366U (en) | 2011-06-20 | 2011-06-20 | Protecting device of automobile for restraining abnormal starting of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100366U true CN202100366U (en) | 2012-01-04 |
Family
ID=45386381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120207558 Expired - Lifetime CN202100366U (en) | 2011-06-20 | 2011-06-20 | Protecting device of automobile for restraining abnormal starting of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251901A (en) * | 2011-06-20 | 2011-11-23 | 广州市雄兵汽车电器有限公司 | Protection device for suppressing abnormal startup of engine of automobile and control method thereof |
-
2011
- 2011-06-20 CN CN 201120207558 patent/CN202100366U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251901A (en) * | 2011-06-20 | 2011-11-23 | 广州市雄兵汽车电器有限公司 | Protection device for suppressing abnormal startup of engine of automobile and control method thereof |
| CN102251901B (en) * | 2011-06-20 | 2012-09-26 | 广州市雄兵汽车电器有限公司 | Protection device for suppressing abnormal startup of engine of automobile and control method thereof |
| WO2012174994A2 (en) * | 2011-06-20 | 2012-12-27 | 广州市雄兵汽车电器有限公司 | Protection device for preventing automobile engines from abnormal starts and control method thereof |
| WO2012174994A3 (en) * | 2011-06-20 | 2013-02-07 | 广州市雄兵汽车电器有限公司 | Protection device for preventing automobile engines from abnormal starts and control method thereof |
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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: 20120104 Effective date of abandoning: 20120926 |