CN202228242U - Control device of starter - Google Patents
Control device of starter Download PDFInfo
- Publication number
- CN202228242U CN202228242U CN2011203157463U CN201120315746U CN202228242U CN 202228242 U CN202228242 U CN 202228242U CN 2011203157463 U CN2011203157463 U CN 2011203157463U CN 201120315746 U CN201120315746 U CN 201120315746U CN 202228242 U CN202228242 U CN 202228242U
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- CN
- China
- Prior art keywords
- storage battery
- starter
- power supply
- electric capacity
- ecu
- Prior art date
- 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 - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a control device of a starter, which comprises a storage battery (200), a capacitor (102) arranged on a substrate (100), a power supply integrated circuit (IC) (103), a micro-processor (104) and a starting relay (106). The power supply IC (103) supplies power to the micro-processor (104) controlling opening and closing of the starting relay (106), one end of the capacitor (102) is connected with the input end of the power supply IC (103), the other end of the capacitor (102) is connected with the ground, and a diode (101) used for avoiding power supply current inversion is connected between the output end of the storage battery (200) and the capacitor (102). By means of the control device of the starter, the problem that an electronic control unit (ECU) can not work normally due to over-low decreasing of output voltage of the storage battery in short time can be solved under the condition that cost is low and occupation space is small.
Description
Technical field
The utility model relates to a kind of automobile and uses the starter control gear.
Background technique
During vehicle starting, after ignition switch was opened, ECU just began action immediately; But under the situation of capacity of battery step-down; May make because starter begins action the storage battery output voltage drop to ECU action guarantee voltage (for example, 6V) below, cause the ECU can not regular event.
Capacity of battery lowly has following several kinds of situation and causes.For example, during winter low temperature, during the storage battery deterioration, when being equipped with out-of-spec storage battery, or idling stop in during battery discharging.In possessing the automobile of idling system, be under the situation in the parking in predefined engine stop condition establishment and judgement vehicle, engine stops automatically.In the idling stopped process, supply power to ECU through storage battery, afterwards, when the expression driver starts the engine condition establishment of wish, start engine automatically through starter.
When starting engine, because storage battery need provide big electric current for starter motor, so the storage battery output voltage can descend through starter.Relatively new or temperature is that output voltage for example drops to 9V from 12V under the situation of normal temperature when storage battery.But when the storage battery deterioration, when perhaps temperature was low temperature, output voltage possibly drop to 6V, even was lower than the ECU action and guarantees that (for example, 6V), this can cause the ECU can't proper functioning to voltage.
In existing automobile, take place for fear of this situation, the output terminal at storage battery is provided with booster circuit usually, perhaps is provided with two storage batteries.As shown in Figure 5, be provided with boosting unit 402 at the output terminal of storage battery 401, the output voltage V Batt of storage battery 401 becomes VB after boosting through boosting unit 402, exports control unit (ECU) 301 again to, and by control unit 301 control starter relaies 302.Through above setting, as shown in Figure 6, even being reduced to the ECU action, the output voltage V Batt of storage battery guarantees below the voltage; The output voltage V B of booster circuit (promptly; The ECU input voltage vin) still keeps constant, thus, can avoid the situation of ECU because of driving electric deficiency cisco unity malfunction.
But in above-mentioned the setting, cause the cost rising and the occupation space of system bigger owing to being provided with boosting unit 402.Be not suitable for economical-type automobile at a low price.
The model utility content
In order to overcome the defective of above-mentioned existing technology, the inventor of the utility model considers, because starter is after the starting engine; Along with engine begins to start; Engine drives AC generator and starts working, and alternator is to charge in batteries, thereby makes the voltage of storage battery be elevated to normal level.Therefore the storage battery output voltage is lower than the ECU action and guarantees that the time of voltage (6V) is very short.If in this short time through supplying power at the electric capacity that is connected between the input end of power supply IC and the GND; And; For the electric charge that prevents this electric capacity output flows in the storage battery; Diode further is set between accumulator output end and electric capacity, just can and taking under the situation in less space, solve the storage battery output voltage and descended low in short-term and cause the problem that ECU can't proper functioning with lower cost.
In order to solve the above-mentioned technical problem that existing technology exists; The purpose of the utility model is the starter control gear that provides a kind of to possess storage battery, is installed on electric capacity, power supply IC and microprocessor on the substrate; And starter relay; Said power supply IC is said microprocessor power supply, and said microprocessor is controlled the switching of said starter relay, and an end of said electric capacity is connected with the input end of said power supply IC; The other end ground connection of said electric capacity is connected with the source current adverse current between the output terminal of said storage battery and the said electric capacity and prevents to use diode.
According to the starter control gear of the utility model, wherein, said source current adverse current prevents to be connected between the output terminal and said electric capacity of said storage battery with diode forward.
According to the starter control gear of the utility model, wherein, said source current adverse current prevents with diode between the input end and said electric capacity of said substrate.
According to the starter control gear of the utility model, wherein, said source current adverse current prevents with diode between the output terminal and said starter relay of said storage battery.
By technique scheme, the advantage that has and the beneficial effect of the utility model are: can and take under the situation in less space with lower cost, solve the storage battery output voltage and descended low in short-term and cause the problem that ECU can't proper functioning.
Description of drawings
Fig. 1 is the schematic representation of the starter control gear of the utility model.
Fig. 2 is output voltage V Batt and the sequential chart of ECU input voltage vin of the storage battery 200 of the utility model.
Fig. 3 is that the starting motor 107 of the utility model starts the output voltage V Batt of back storage batteries 200 and the sequential chart of ECU input voltage vin.
Fig. 4 is the schematic representation of the starter control gear of another mode of execution of the utility model.
Fig. 5 is the schematic representation of starter control gear in the existing technology.
Fig. 6 is the sequential chart of storage battery output voltage V Batt and ECU input voltage vin in the existing technology.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is explained in more detail.
According to the starter control gear of the utility model, it comprises storage battery 200, is installed on electric capacity 102, power supply IC103, microprocessor (CPU) 104 on the substrate 100, and starter relay 106.Power supply IC103 (for example, 5V) and to microprocessor 104 supplies power the operating voltage that input voltage converts microprocessor 104 into.One end of electric capacity 102 is connected with the input end of power supply IC103, the other end ground connection of electric capacity 102.Power supply IC103, microprocessor 104 and formation ECU such as storage not shown in the figures.An output terminal of microprocessor 104 is connected with relay switch 105.When this output terminal output high level of microprocessor (for example, in the time of 5V), relay switch 105 conductings, thus starter relay 106 is set to ON; (for example, in the time of 0V), relay switch 105 breaks off, thereby starter relay 106 is set to OFF when the microprocessor output low level.Starter relay 106 is used to control the starting of starting motor 107 and stop, when starter relay 106 is set to ON, and starting motor 107 entrys into service; When starter relay 106 was set to OFF, starting motor 107 shut down.
In addition, between the output terminal and electric capacity 102 of storage battery 200, also be provided with the source current adverse current and prevent with diode 101.Its effect is that the output voltage at storage battery 200 is lower than the ECU action and (for example guarantees voltage; In the time of 6V); The output terminal of storage battery 200 and the input end of the power supply IC103 on the substrate 100 are isolated, so that do not have in electric current adverse current to the storage battery 200 in electric capacity 102 discharge processes.Thus, when the output voltage of storage battery 200 was lower than 6V, power supply IC was supplied power by electric capacity 102 in short-term, and the source current adverse current prevents to be in reverse blocking state with diode 101.In addition, in this mode of execution, be preferably the source current adverse current is prevented to be arranged between substrate input end 108 and the electric capacity 102 with diode 101, can utilize original substrate like this and diode 101 is set, thereby can save the space.
Be example with Fig. 2 below, in vehicle traveling process, the variation of the output voltage V Batt of storage battery 200 and ECU input voltage vin describes.When the driver inserts car key, at moment t
0The time open ignition switch IGN SW, afterwards, at moment t
0～t
1In, the ECU input voltage vin begins to rise, and storage battery 200 voltage VBatt are in normal state (for example, 12V).Afterwards, at moment t
1Starter begins the starting action, at moment t
1～t
2In the starter action, because storage battery 200 provides big electric current to starting motor 107, so the output voltage V Batt of storage battery 200 descends, the ECU input voltage vin also descends thereupon.Afterwards, at moment t
2～t
3In, because engine starts the back to drive alternator storage battery is charged, so the rising of the voltage of storage battery 200, and the ECU input voltage vin also rises thereupon.Afterwards, at moment t
3～t
4In, vehicle gets into travelling state, during, under the situation that the condition that predefined idling stops to be set up, vehicle gets into idle stop state.Afterwards, at moment t
4, the expression driver starts the engine condition of wish and sets up, and starter restarts the starting action.Afterwards, at moment t
4～t
5In, with moment t
1～t
2Identical ground, the output voltage V Batt of storage battery 200 descends, and the ECU input voltage vin also descends thereupon.Afterwards, at moment t
5～t
6In, with moment t
2～t
3Identical ground is charging to storage battery because engine starts the back to drive alternator once more, so the output voltage V Batt of storage battery 200 rises once more, and the ECU input voltage vin also rises thereupon.At moment t
6～t
7In, automobile normal running.Afterwards, when moment t7, IGN SW closes, and the ECU power supply is at certain hour (moment t
7～t
8) in fully the outage.
Below in conjunction with Fig. 3, to moment t among Fig. 2
2～t
4, moment t
5～t
7In, the variation of the output voltage V Batt of storage battery 200 and ECU input voltage vin is described further.After starter began starting, the output voltage V Batt of storage battery 200 descended rapidly, and under the situation that battery capacity reduces, the output voltage V Batt of storage battery 200 may be lower than the ECU action and guarantee voltage.At this moment, because electric capacity 102 prevents the effect with diode 101 with the source current adverse current, the fall of ECU input voltage vin is less than the fall of the output voltage V Batt of storage battery 200.Because the discharge of electric capacity 102 and source current adverse current prevent with oppositely the ending of diode 101, can go up at the output voltage V Batt of storage battery 200 guarantee voltage to the ECU action before, the ECU input voltage vin is maintained ECU moves more than the assurance voltage.
Below explanation source current adverse current prevents to select with the parameter of diode 101.Choose the commutation diode that the highest working inverse voltage is 50V in order to guarantee that the source current adverse current prevents not to be reversed puncture with diode 101, to be preferably.And, overheated at work in order to prevent diode 101, be preferably and choose the commutation diode that running current is 5～10A.
In addition, in the above-mentioned mode of execution, the source current adverse current prevents with diode 101 between substrate input end 108 and electric capacity 102.But, also can be as shown in Figure 4, the source current adverse current is prevented to be arranged between the output terminal and starter relay 106 of storage battery 200 with diode 101.Through such setting, when the output voltage of storage battery further reduces, can keep the ON voltage of starter relay through electric capacity 102.
According to the starter control gear of the utility model, can and take under the situation in less space with lower cost, solve the storage battery output voltage and descended low in short-term and cause the problem that ECU can't proper functioning.
Though more than combine accompanying drawing and embodiment that the utility model is specified, be appreciated that above-mentioned explanation does not limit the utility model in any form.Those skilled in the art can be out of shape and change the utility model as required under the situation of connotation that does not depart from the utility model and scope, and these distortion and variation all fall in the scope of the utility model.
Claims (4)
1. a starter control gear is characterized in that,
Possess: storage battery, be installed on electric capacity, power supply IC and microprocessor on the substrate, and starter relay,
Said power supply IC is said microprocessor power supply, and said microprocessor is controlled the switching of said starter relay,
One end of said electric capacity is connected with the input end of said power supply IC, the other end ground connection of said electric capacity,
Be connected with the source current adverse current between the output terminal of said storage battery and the said electric capacity and prevent to use diode.
2. starter control gear as claimed in claim 1 is characterized in that,
Said source current adverse current prevents to be connected between the output terminal and said electric capacity of said storage battery with diode forward.
3. according to claim 1 or claim 2 starter control gear is characterized in that,
Said source current adverse current prevents with diode between the input end and said electric capacity of said substrate.
4. according to claim 1 or claim 2 starter control gear is characterized in that,
Said source current adverse current prevents with diode between the output terminal and said starter relay of said storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203157463U CN202228242U (en) | 2011-08-26 | 2011-08-26 | Control device of starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203157463U CN202228242U (en) | 2011-08-26 | 2011-08-26 | Control device of starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228242U true CN202228242U (en) | 2012-05-23 |
Family
ID=46078830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203157463U Expired - Fee Related CN202228242U (en) | 2011-08-26 | 2011-08-26 | Control device of starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420242A (en) * | 2017-05-24 | 2017-12-01 | 内蒙古北方重型汽车股份有限公司 | Electric wheel mining vehicle starts voltage drop control circuit |
-
2011
- 2011-08-26 CN CN2011203157463U patent/CN202228242U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420242A (en) * | 2017-05-24 | 2017-12-01 | 内蒙古北方重型汽车股份有限公司 | Electric wheel mining vehicle starts voltage drop control circuit |
| WO2018214469A1 (en) * | 2017-05-24 | 2018-11-29 | 内蒙古北方重型汽车股份有限公司 | Circuit for controlling activation voltage drop of electric-drive mining vehicle |
| CN107420242B (en) * | 2017-05-24 | 2019-04-16 | 内蒙古北方重型汽车股份有限公司 | Electric wheel mining vehicle starts voltage drop control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HITACHI AUTOMOTIVE SYSTEMS (SUZHOU) CO., LTD. Free format text: FORMER NAME: HITACHI AUTOMOTIVE PARTS (SUZHOU) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Suzhou City, Jiangsu province 215126 Industrial Park Suzhou Xinglong Street No. 255 Patentee after: Hitachi Automotive Systems (Suzhou) Co., Ltd. Address before: Suzhou City, Jiangsu province 215126 Industrial Park Suzhou Xinglong Street No. 255 Patentee before: Hitachi Automobile Parts (Suzhou) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20150826 |
|
| EXPY | Termination of patent right or utility model |