CN201953539U - Car engine start control system capable of improving cold-start performance of whole car - Google Patents
Car engine start control system capable of improving cold-start performance of whole car Download PDFInfo
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- CN201953539U CN201953539U CN2010206921695U CN201020692169U CN201953539U CN 201953539 U CN201953539 U CN 201953539U CN 2010206921695 U CN2010206921695 U CN 2010206921695U CN 201020692169 U CN201020692169 U CN 201020692169U CN 201953539 U CN201953539 U CN 201953539U
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Abstract
The utility model relates to a car engine start control system capable of improving the cold-start performance of a whole car, which comprises an ignition switch, a starter relay and an unloading relay, wherein a power cord of the ignition switch is connected with a positive electrode of a storage battery, and a starting cord controls a control coil of the starter relay; an ignition cord is connected with an L/IG end of an integral generator through a normally closed contact of the unloading relay so as to connect with an excitation coil of the generator, and a normally open contact of the starter relay is connected between the positive electrode of the storage battery and a control wiring terminal of a starter; and one end of the control coil of the unloading relay is grounded, and the other end of the control coil of the unloading relay is connected with the starting cord of the ignition switch. Based on the traditional car engine start control circuit, the unloading relay is additionally arranged, and an excitation circuit of the generator can be turned off by the unloading relay in the start process of the engine, so that the electromagnetic moment produced inside the generator can not prevent the engine from rotating, and the starting load is reduced to the utmost extent, and thus the cold start performance of the engine can be improved.
Description
Technical field
The utility model relates to a kind of engine start control circuit that can improve the vehicle cold starting performance, belongs to automobile technical field.
Background technique
The starting of motor car engine is driven by starter motor and finishes, and starter motor is controlled by starter relay by ignition switch.Ignition switch generally is by key operated multi-gear switch, and this switch comprises three gears at least: " OFF ", " ON " and " START ".Wherein, " START " shelves can not be located, and unclamp and get back to " ON " shelves behind the key automatically.When ignition switch was in " OFF " shelves, its each output pin did not all communicate with power line; When being in " ON " shelves, its ignition wire IG is communicated with power line; When being in " START " shelves, an ignition wire IG and a moving-wire ST are communicated with power line simultaneously.
At present, a moving-wire ST of most of automobile ignition switchs connects the control coil of starter relay, and ignition wire IG holds through the L/IG that charging indicator light connects integrated generator, provides initial field current (referring to Fig. 1) to generator when engine start.The shortcoming of sort circuit is that the energized circuit of generator in the starting process of motor is connected, storage battery also provides field current for generator in to the starter motor power supply, because generator is driven by belt by motor, generator rotary electrification thereupon in the starting process of motor, its inner electromagnetic torque that produces stops the rotation of motor, has so just increased the load of storage battery.Though this causes tangible influence can't in the ordinary course of things the normal use of automobile, but under low temperature condition, the capacity of storage battery descends, and the engine interior lubricating oil becomes sticky thick, it is big that starting resistance becomes, make the car load starting become difficult unusually, had a strong impact on the normal use of automobile.
In order to overcome above-mentioned shortcoming, the automobile that has utilizes Engine ECU to cut off the energized circuit of generator when engine start, alleviate the load of storage battery, but the generator of this kind automobile (the intelligent generator that as above extra large Valeo S. P. A. (IT) produces) structure more complicated, and cost is higher.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of car engine start control system that improves the car load cold-start performance is provided, and under the situation that does not improve integral vehicle cost, reduces the difficulty of automobile cold-starting.
Problem described in the utility model realizes with following technical proposals:
A kind of car engine start control system that improves the car load cold-start performance, comprise ignition switch and starter relay in the formation, after the improvement, set up and unload load relay, the power line of described ignition switch connects battery positive voltage, the control coil of starting line traffic control starter relay, the normally-closed contact of ignition wire through unloading load relay connect the L/IG end of integrated generator, connect the field coil of generator; The control that the normally opened contact of described starter relay is connected to battery positive voltage and starter motor connects between the post, described control coil one end ground connection of unloading load relay, a moving-wire of a termination ignition switch.
The above-mentioned car engine start control system that improves the car load cold-start performance, the described load relay that unloads is provided with normally-closed contact, also is serially connected with charging indicator light between the common in the normally-closed contact and the ignition wire of ignition switch.
The above-mentioned car engine start control system that improves the car load cold-start performance, the described load relay that unloads also is provided with normally opened contact, an end bonding of described normally opened contact.
The utility model has been set up on the basis of orthodox car engine start control circuit and has been unloaded load relay, unload load relay can cut off generator in the engine start process energized circuit, prevent the inner rotation that produces electromagnetic torque prevention motor of generator, reduce starting duty to greatest extent, thereby reach the purpose that improves the engine cold starting performance.Unloading load relay is the common relay of a small capacity, can not increase cost to car load substantially.Charging indicator light is used to indicate the working state of generator, and the normally opened contact that unloads load relay can light charging indicator light in the engine start process, has the effect of check charging indicator light.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the electrical schematic diagram of orthodox car engine start control circuit;
Fig. 2 is an electrical schematic diagram of the present utility model.
Each label is among the figure: B, storage battery; QD, starter motor; FD, generator; J1, starter relay; J2, unload load relay; K, ignition switch; L, charging indicator light; F, insurance.
Embodiment
Referring to Fig. 2, working principle of the present utility model is as follows:
When vehicle starting, ignition switch is threaded to " START " by " ON " shelves, the control coil energising of starter relay J1, and starter motor QD starts working.Meanwhile, the control coil of off-load relay J 2 is also switched on, its normally-closed contact disconnects, circuit between the L/IG end of the ignition wire IG of ignition switch K and generator is cut off, generator can not produce excitation, and non-electromagnetic-force square, generator only apply minimum mechanical friction resistance to motor, all mechanical energy of starter motor are used for the starting of motor substantially entirely, make starting process lighter.After the motor proper functioning, ignition switch is got back to " ON " shelves by " START " shelves automatically, the coil blackout of off-load relay J 2, its normally-closed contact closure, circuit between the ignition wire IG of connection igniting K switch and the L/IG end of generator, the ignition wire IG of ignition switch K provides initial field current for charging indicator light L and generator, makes the generator normal power generation.
This circuit also has the function of faut detection, when ignition switch K is threaded to " START " shelves by " ON " shelves, the normally opened contact closure of starting off-load relay J 2, end bonding with charging indicator light L, charging indicator light L is lighted, and this moment, the driver can judge whether charging indicator light L is normal, if charging indicator light L does not work, illustrate that charging indicator light L is bad, should in time change.Behind the car load normal starting, when ignition switch K goes to " ON " shelves by " START " shelves, the normally-closed contact closure of starting off-load relay J 2, the ignition wire IG of ignition switch K provides initial field current by charging indicator light L to generator, makes the generator normal power generation.After the generator normal power generation, its L/IG holds the terminal voltage (this is by the decision of integrated generator internal structure) that is risen to generator by original low potential, and oneself provides field current generator, and charging indicator light extinguishes.If charging indicator light continues to light, illustrate that generator does not have power output, can detect generator thus and whether be in normal working.
The power of charging indicator light L is generally 2W, and the load that accumulators increases during engine start can be ignored.
Claims (3)
1. car engine start control system that can improve the car load cold-start performance, it comprises ignition switch (K) and starter relay (J1), it is characterized in that, set up and unload load relay (J2), the power line of described ignition switch (K) connects storage battery (B) positive pole, play the control coil of moving-wire (ST) control starter relay (J1), the normally-closed contact of ignition wire (IG) through unloading load relay (J2) connects the L/IG end of integrated generator (FD), connects the field coil of generator; The normally opened contact of described starter relay (J1) is connected to storage battery (B) control anodal and starter motor (QD) and connects between the post, described control coil one end ground connection of unloading load relay (J2), a moving-wire (ST) of a termination ignition switch (K).
2. according to the described car engine start control system that improves the car load cold-start performance of claim 1, it is characterized in that, the described load relay (J2) that unloads is provided with normally-closed contact, also is serially connected with charging indicator light (L) between the ignition wire (IG) of common in the normally-closed contact and ignition switch (K).
3. according to the described car engine start control system that improves the car load cold-start performance of claim 2, it is characterized in that the described load relay that unloads also is provided with normally opened contact, an end bonding of described normally opened contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206921695U CN201953539U (en) | 2010-12-31 | 2010-12-31 | Car engine start control system capable of improving cold-start performance of whole car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206921695U CN201953539U (en) | 2010-12-31 | 2010-12-31 | Car engine start control system capable of improving cold-start performance of whole car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953539U true CN201953539U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206921695U Expired - Fee Related CN201953539U (en) | 2010-12-31 | 2010-12-31 | Car engine start control system capable of improving cold-start performance of whole car |
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| CN (1) | CN201953539U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661225A (en) * | 2012-05-22 | 2012-09-12 | 江西沃尔福发动机有限公司 | Method for improving starting performance of diesel transportation vehicle |
| CN107355304A (en) * | 2017-08-11 | 2017-11-17 | 广西玉柴机器股份有限公司 | Alternator for vehicle control method and its system |
| CN108322114A (en) * | 2018-02-28 | 2018-07-24 | 广西玉柴机器股份有限公司 | A kind of automobile current generator system and start method |
| CN112922762A (en) * | 2021-01-22 | 2021-06-08 | 苏州巩诚电器技术有限公司 | Control method for reducing engine starting load |
-
2010
- 2010-12-31 CN CN2010206921695U patent/CN201953539U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661225A (en) * | 2012-05-22 | 2012-09-12 | 江西沃尔福发动机有限公司 | Method for improving starting performance of diesel transportation vehicle |
| CN107355304A (en) * | 2017-08-11 | 2017-11-17 | 广西玉柴机器股份有限公司 | Alternator for vehicle control method and its system |
| WO2019029003A1 (en) * | 2017-08-11 | 2019-02-14 | 广西玉柴机器股份有限公司 | Vehicle generator control method and system thereof |
| EP3553298A4 (en) * | 2017-08-11 | 2020-02-26 | Guangxi Yuchai Machinery Group Co., Ltd. | Vehicle generator control method and system thereof |
| US20200072138A1 (en) * | 2017-08-11 | 2020-03-05 | Guangxi Yuchai Machinery Group Co., Ltd. | Vehicle generator control method and system thereof |
| US11002198B2 (en) | 2017-08-11 | 2021-05-11 | Guangxi Yuchai Machinery Co., Ltd. | Vehicle generator control method and system thereof |
| CN108322114A (en) * | 2018-02-28 | 2018-07-24 | 广西玉柴机器股份有限公司 | A kind of automobile current generator system and start method |
| CN112922762A (en) * | 2021-01-22 | 2021-06-08 | 苏州巩诚电器技术有限公司 | Control method for reducing engine starting load |
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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 |
Granted publication date: 20110831 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |