CN111173663A - Starting control circuit of engine and driving circuit and method of starting motor - Google Patents
Starting control circuit of engine and driving circuit and method of starting motor Download PDFInfo
- Publication number
- CN111173663A CN111173663A CN202010104437.5A CN202010104437A CN111173663A CN 111173663 A CN111173663 A CN 111173663A CN 202010104437 A CN202010104437 A CN 202010104437A CN 111173663 A CN111173663 A CN 111173663A
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- Prior art keywords
- starting
- relay
- switch
- coil
- engine
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000007858 starting material Substances 0.000 claims description 16
- 230000007935 neutral effect Effects 0.000 claims description 7
- 230000005284 excitation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0803—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop
- F02N11/0811—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop using a timer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/10—Safety devices
- F02N11/101—Safety devices for preventing engine starter actuation or engagement
- F02N11/105—Safety devices for preventing engine starter actuation or engagement when the engine is already running
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/10—Safety devices
- F02N11/106—Safety devices for stopping or interrupting starter actuation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor And Converter Starters (AREA)
Abstract
The invention provides a starting control circuit of an engine, a driving circuit of a starting motor and a method; wherein, drive circuit includes: one end of a coil of the starting relay is electrically connected to the R2 end of the preheating starting switch, and the other end of the coil of the starting relay is grounded; a normally open contact switch of the starting relay is connected in series with a power taking end of the starting motor; one end of a coil of the time relay is electrically connected to the D + end of the automobile generator, and the other end of the coil of the time relay is grounded; and a normally closed contact switch of the time relay is connected in series with a coil of the starting relay. The invention can effectively protect the starting motor.
Description
Technical Field
The present invention relates to the field of engine starting technologies, and in particular, to a start control circuit for an engine, and a driving circuit and method for a starter motor.
Background
When the engine is started, the preheating starting switch is firstly turned on, the power supply is connected with the starting relay through the preheating starting switch, and then the starting motor is connected through the starting relay contact, so that the purpose of starting the engine is achieved. However, due to some reasons, such as that the preheating starting switch is not reset in time, the contact of the preheating starting switch is bonded, and the contact of the starting relay is bonded, the excessive discharge of the storage battery is caused, and the burning fault of the starting motor is caused.
The Japanese imported fifty-bell engine random accessory contains a safety relay. The safety relay has a function of preventing the above-mentioned malfunction. However, the safety relay has the following disadvantages: a. the price is higher, b, the connector of taking certainly is the product of stopping production, and the connector of butt joint with whole lane is difficult for purchasing.
Disclosure of Invention
In view of the above, it is a first object of the present invention to provide a driving circuit for an engine starter motor, which can effectively protect the starter motor.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a drive circuit for an engine starter motor, comprising:
one end of a coil of the starting relay is electrically connected to the R2 end of the preheating starting switch, and the other end of the coil of the starting relay is grounded; a normally open contact switch of the starting relay is connected in series with a power taking end of the starting motor; and
one end of a coil of the time relay is electrically connected to the D + end of the automobile generator, and the other end of the coil of the time relay is grounded; and a normally closed contact switch of the time relay is connected in series with a coil of the starting relay.
Preferably, the starting relay further comprises a neutral position limit switch, and the neutral position limit switch is connected in series with a coil of the starting relay.
Preferably, the normally open contact switch of the starter relay is connected in series with a coil of a built-in relay of the starter motor.
A second object of the present invention is to provide a start control circuit for an engine, which has a function of effectively protecting a starter motor.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a starting control circuit of an engine comprises a preheating starting switch, a storage battery, a starting motor, a power supply relay and a separately excited generator; the positive electrode of the storage battery is electrically connected to the end B of the preheating starting switch, and the positive electrode of the storage battery also provides a power supply branch; one end of a coil of the power supply relay is electrically connected to a BR end of the preheating starting switch, the other end of the coil is grounded, and a contact switch of the power supply relay is connected in series with the power supply branch circuit; the power taking end of the starting motor is electrically connected to the power supply branch circuit, and the other end of the starting motor is grounded; the D + end of the separately excited generator is electrically connected to the power supply branch circuit through an excitation resistor, the B end of the separately excited generator is electrically connected to the R2 end of the preheating starting switch, and the grounding end of the separately excited generator is grounded; the driving circuit is also included.
Preferably, the battery preheating device further comprises a fuse, and the fuse is connected between the storage battery and the preheating starting switch in series.
A third object of the present invention is to provide a starter motor driving method of an engine having a function of effectively protecting a starter motor.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the starting motor driving method of an engine, the above-mentioned drive circuit implements; the method comprises the following steps:
switching a preheating starting switch to R2 grade to electrify and close a starting relay, and electrifying a starting motor to work at the moment;
the time relay is electrified and starts timing, and when the set time is reached, the normally closed contact switch is switched off, so that the electrified loop of the starting relay is switched off.
The technical effects of the invention are mainly reflected in the following aspects:
1. after the starting motor is started, the preheating starting switch can break and open the movable relay within 7 seconds when the starting switch cannot be reset due to reasons, and then a main loop of the starting motor is broken, so that the purpose of protecting a gear of the starting motor is achieved;
2. when the engine fails and cannot be started, the movable relay can be switched on within 7 seconds, and then a main loop of the starting motor is switched off, so that the starting motor is prevented from being overheated, the storage battery is prevented from being in long-time heavy current output, and the service life of the storage battery is prolonged;
3. if the engine is started, when the preheating starting switch is switched on again, the starting relay does not act, the starter is protected, and the secondary starting protection effect is achieved.
Drawings
Fig. 1 is a circuit diagram of a start-up control circuit in an embodiment.
Reference numerals: 1. a storage battery, 2 and a fuse; 3. a preheating starting switch; 4. starting the motor; 5. a power supply relay; 6. starting a relay; 7. neutral position limiting; 8. an excitation resistor; 9. a time relay; 10. a separately excited generator.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.
As shown in fig. 1, the present embodiment provides a start control circuit of an engine, including a warm-up start switch 3, a battery 1, a starter motor 4, a start relay 6, a time relay 9, a power supply relay 5, and a separately excited generator 10. Generally, the warm-up start switch 3 (also called an ignition switch) has a B terminal, a BR terminal, an ACC terminal, a C terminal, an R1 terminal and an R2 terminal, which are well known to those skilled in the art, and therefore the principle of the warm-up start switch 3 and the function of each terminal will not be described in detail in this embodiment.
The positive electrode of the storage battery 1 is electrically connected to the end B of the preheating starting switch 3, and the positive electrode of the storage battery 1 also provides a power supply branch; one end of a coil of the power supply relay 5 is electrically connected to a BR end of the preheating starting switch 3, the other end of the coil is grounded, and a contact switch of the power supply relay 5 is connected in series with a power supply branch circuit; the power taking end of the starting motor 4 is electrically connected with the power supply branch circuit, and the other end of the starting motor is grounded; the D + end of the separately excited generator 10 is electrically connected to the power supply branch circuit through the exciting resistor 8, the B end is electrically connected to the R2 end of the preheating starting switch 3, and the grounding end is grounded; one end of the coil of the starting relay 6 is electrically connected to the R2 end of the preheating starting switch 3, and the other end is grounded; a normally open contact switch of the starting relay 6 is connected in series with the power taking end of the starting motor 4; specifically, the normally open contact switch of the starter relay 6 is connected in series with the coil of the built-in relay of the starter motor 4.
One end of a coil of the time relay 9 is electrically connected to the D + end of the automobile generator, and the other end of the coil is grounded; the normally closed contact switch of the time relay 9 is connected in series with the coil of the start relay 6.
In addition, the device also comprises a neutral position limit 7 switch, and the neutral position limit 7 switch is connected in series with a coil of the starting relay 6.
In addition, the battery preheating device further comprises a fuse 2, and the fuse 2 is connected between the storage battery 1 and the preheating starting switch 3 in series.
Therefore, the working principle of the embodiment is as follows:
when preheating starting switch 3 and switching to R2 shelves, BR end and R2 end all switch on this moment, and power relay 5 has switched on, and then the circular telegram of the power supply branch of battery 1, and starting relay 6 circular telegram simultaneously, its normally open contact switch is closed for the circular telegram work of starter motor 4. The time relay 9 is energized to start timing, and when a set time (for example, 7 seconds) is reached, the normally closed contact switch thereof is opened, so that the energizing circuit of the starter relay 6 is opened.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.
Claims (6)
1. A drive circuit for an engine starting motor, comprising:
one end of a coil of the starting relay (6) is electrically connected to the R2 end of the preheating starting switch (3), and the other end of the coil is grounded; a normally open contact switch of the starting relay (6) is connected in series with a power taking end of the starting motor (4); and
one end of a coil of the time relay (9) is electrically connected to the D + end of the automobile generator, and the other end of the coil is grounded; and a normally closed contact switch of the time relay (9) is connected in series with a coil of the starting relay (6).
2. The driving circuit of an engine starting motor according to claim 1, further comprising a neutral limit (7) switch, wherein said neutral limit (7) switch is connected in series with a coil of said starting relay (6).
3. The drive circuit of an engine starting motor according to claim 1, characterized in that the normally open contact switch of the starting relay (6) is connected in series with the coil of the built-in relay of the starting motor (4).
4. A starting control circuit of an engine comprises a preheating starting switch (3), a storage battery (1), a starting motor (4), a power supply relay (5) and a separately excited generator (10); the positive electrode of the storage battery (1) is electrically connected to the end B of the preheating starting switch (3), and the positive electrode of the storage battery (1) also provides a power supply branch; one end of a coil of the power supply relay (5) is electrically connected to a BR end of the preheating starting switch (3), the other end of the coil is grounded, and a contact switch of the power supply relay (5) is connected in series with the power supply branch circuit; the power taking end of the starting motor (4) is electrically connected to the power supply branch circuit, and the other end of the starting motor is grounded; the D + end of the separately excited generator (10) is electrically connected to the power supply branch circuit through an excitation resistor (8), the B end is electrically connected to the R2 end of the preheating starting switch (3), and the grounding end is grounded; -characterized in that it further comprises a driver circuit according to any of claims 1 to 3.
5. The start control circuit of an engine according to claim 4, further comprising a fuse (2), wherein the fuse (2) is connected in series between the battery (1) and the warm-up start switch (3).
6. A starter motor driving method of an engine, implemented based on the driving circuit of claim 1; the method is characterized by comprising the following steps:
the preheating starting switch (3) is switched to R2 gear, so that the starting relay (6) is electrified and closed, and the starting motor (4) is electrified to work at the moment;
the time relay (9) is electrified and starts to time, and when the set time is reached, the normally closed contact switch is switched off, so that the electrified loop of the starting relay (6) is switched off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104437.5A CN111173663A (en) | 2020-02-20 | 2020-02-20 | Starting control circuit of engine and driving circuit and method of starting motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104437.5A CN111173663A (en) | 2020-02-20 | 2020-02-20 | Starting control circuit of engine and driving circuit and method of starting motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111173663A true CN111173663A (en) | 2020-05-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010104437.5A Pending CN111173663A (en) | 2020-02-20 | 2020-02-20 | Starting control circuit of engine and driving circuit and method of starting motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN111173663A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI766366B (en) * | 2020-09-15 | 2022-06-01 | 車王電子股份有限公司 | Switch device and control method of starter motor of vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2536801Y (en) * | 2002-04-30 | 2003-02-19 | 三一重工股份有限公司 | Diesel engine starting protectors |
| JP2010096017A (en) * | 2008-10-14 | 2010-04-30 | Caterpillar Japan Ltd | Engine control circuit for working machine |
| JP2010163936A (en) * | 2009-01-14 | 2010-07-29 | Caterpillar Japan Ltd | Starter motor control circuit |
| US20110221210A1 (en) * | 2010-03-10 | 2011-09-15 | Denso Corporation | Engine starting system with high-and low-speed modes of motor operation |
| CN202300770U (en) * | 2011-11-08 | 2012-07-04 | 玉柴重工（常州）有限公司 | Protection device for starting motor of engine |
| CN203050973U (en) * | 2012-12-26 | 2013-07-10 | 安徽铜冠机械股份有限公司 | Vehicle starting motor overtime protection system |
| CN211524981U (en) * | 2020-02-20 | 2020-09-18 | 厦工(三明)重型机器有限公司 | Starting control circuit of engine and driving circuit of starting motor |
-
2020
- 2020-02-20 CN CN202010104437.5A patent/CN111173663A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2536801Y (en) * | 2002-04-30 | 2003-02-19 | 三一重工股份有限公司 | Diesel engine starting protectors |
| JP2010096017A (en) * | 2008-10-14 | 2010-04-30 | Caterpillar Japan Ltd | Engine control circuit for working machine |
| JP2010163936A (en) * | 2009-01-14 | 2010-07-29 | Caterpillar Japan Ltd | Starter motor control circuit |
| US20110221210A1 (en) * | 2010-03-10 | 2011-09-15 | Denso Corporation | Engine starting system with high-and low-speed modes of motor operation |
| CN202300770U (en) * | 2011-11-08 | 2012-07-04 | 玉柴重工（常州）有限公司 | Protection device for starting motor of engine |
| CN203050973U (en) * | 2012-12-26 | 2013-07-10 | 安徽铜冠机械股份有限公司 | Vehicle starting motor overtime protection system |
| CN211524981U (en) * | 2020-02-20 | 2020-09-18 | 厦工(三明)重型机器有限公司 | Starting control circuit of engine and driving circuit of starting motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI766366B (en) * | 2020-09-15 | 2022-06-01 | 車王電子股份有限公司 | Switch device and control method of starter motor of vehicle |
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