CN111794890A - Engine auxiliary starting system with emergency power supply - Google Patents
Engine auxiliary starting system with emergency power supply Download PDFInfo
- Publication number
- CN111794890A CN111794890A CN202010572899.XA CN202010572899A CN111794890A CN 111794890 A CN111794890 A CN 111794890A CN 202010572899 A CN202010572899 A CN 202010572899A CN 111794890 A CN111794890 A CN 111794890A
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- Prior art keywords
- relay
- power supply
- emergency power
- starting
- engine
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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
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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
- F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
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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
- F02N11/14—Starting of engines by means of electric starters with external current supply
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Charge By Means Of Generators (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention discloses an engine auxiliary starting system with an emergency power supply, which comprises a storage battery, a generator, the emergency power supply, a main relay, an auxiliary relay, a delay relay, a gear selection switch, a starting switch, a starter, an ECU (electronic control unit) and a gateway, wherein the emergency power supply is connected with the main relay; the positive electrode of the storage battery is connected with a KL30 end, and a KL30 end is respectively connected with a starting switch and a starter starting end 30; the start switch B2 is selectively in line communication with the ST line or the IG 2; when the engine is in a starting stage, the main relay is connected with the low-voltage driving end of the ECU through the gear selection switch, and the main relay is connected with the emergency power supply through the delay relay; when the engine is started, the auxiliary relay is connected with the low-voltage driving end of the gateway, and the auxiliary relay is connected with the emergency power supply through the one-way diode.
Description
Technical Field
The invention relates to an engine auxiliary starting system, in particular to an engine auxiliary starting system with an emergency power supply.
Background
Aiming at the problem that the vehicle cannot be started due to the insufficient power of the storage battery, the invention adopts a front-mounted low-power emergency power supply and is matched with a driving circuit, and under the condition that the storage battery cannot be started due to the insufficient power (cannot be started for a long time), the driving circuit works, starts the low-power emergency power supply and starts an engine; the scheme has the advantages of low cost, small weight gain of the whole vehicle, prolonged service life of the storage battery, safety and reliability, and no need of newly developing an energy management system.
Disclosure of Invention
Aiming at the problem that the vehicle cannot be started due to the insufficient power of the storage battery, the invention adopts a front-mounted low-power emergency power supply and is matched with a driving circuit, and under the condition that the storage battery cannot be started due to the insufficient power (cannot be started for a long time), the driving circuit works, starts the low-power emergency power supply and starts an engine; the scheme has the advantages of low cost, small weight gain of the whole vehicle, prolonged service life of the storage battery, safety and reliability, and no need of newly developing an energy management system.
The purpose of the invention is realized by the following technical scheme:
an engine auxiliary starting system with an emergency power supply comprises a storage battery, a generator, the emergency power supply, a main relay, an auxiliary relay, a delay relay, a gear selection switch, a starting switch, a starter, an ECU and a gateway; the positive electrode of the storage battery is connected with a KL30 end, and a KL30 end is respectively connected with a starting switch and a starter starting end 30; the start switch B2 is selectively in line communication with the ST line or the IG 2; when the engine is in a starting stage, the main relay is connected with the low-voltage driving end of the ECU through the gear selection switch, and the main relay is connected with the emergency power supply through the delay relay; when the engine is started, the auxiliary relay is connected with the low-voltage driving end of the gateway, and the auxiliary relay is connected with the emergency power supply through the one-way diode.
Further, when the engine is started, the ST line is communicated with a main relay, and the main relay is connected with the ECU low-voltage drive through a gear selection switch; the main relay is selectively communicated with a delay relay, and the delay relay is connected with a starting coil of the starter; the positive electrode of the emergency power supply is communicated with the starter starting end 30 through a delay relay; the start switch B1 is selectively in communication with IG 1.
Furthermore, the starting switch B2 is turned to the ST position, the ST line is communicated with the end of the main relay 86, the gear selecting switch selects the N gear to enable the ST + to be communicated with the ST-, the ECU low-voltage drive is started, the main relay works, the end 87 of the main relay is communicated with the end 30, the end 30 of the main relay is communicated with the end 86 of the time delay relay, the loop of the end 50 of the starting coil of the starter is conducted to prepare the end 30 of the starter to work, the time delay relay does not start the engine after 10s, the ends 87 and 30 of the time delay relay are conducted, and the positive pole of the emergency power supply is directly communicated with.
Further, after the engine is started, the generator starts to work, the auxiliary relay is respectively communicated with IG1 and IG2, the auxiliary relay is communicated with the low-voltage driving end of the gateway and is connected with an emergency power supply through a one-way diode to charge the emergency power supply.
Furthermore, the starting switch is switched to an IG1/IG2 position, the ST circuit is powered off, the main relay is powered off and stops working, the delay relay is powered off and stops working, the emergency power supply stops outputting electric energy, meanwhile, an IG1/IG2 circuit is communicated, an auxiliary relay 86 end is communicated with an IG1 end, an auxiliary relay 85 end is communicated with a gateway low-voltage driving section, after the engine is started, a gateway low-voltage driving end works, the auxiliary relay works, an auxiliary relay 87 end is communicated with an auxiliary relay 30 end, the auxiliary relay 87 end is connected with an IG2 end, an auxiliary relay 30 end is connected with the emergency power supply through a one-way diode, the emergency power supply is charged, after the engine is fully charged, gateway low-voltage driving.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic diagram of an engine auxiliary starting system with an emergency power supply according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As shown in fig. 1, an engine auxiliary starting system with an emergency power supply comprises a storage battery, a generator, an emergency power supply, a main relay, an auxiliary relay, a delay relay, a gear selection switch, a starting switch, a starter, an ECU, a gateway and the like; the positive electrode of the storage battery is connected with a KL30 end, and a KL30 end is respectively connected with a starting switch and a starter starting end 30; the start switch B2 is selectively in line communication with the ST line or the IG 2; when the engine is in a starting stage, the main relay is connected with the low-voltage driving end of the ECU through the gear selection switch, and the main relay is connected with the emergency power supply through the delay relay; when the engine is started, the auxiliary relay is connected with the low-voltage driving end of the gateway, and the auxiliary relay is connected with the emergency power supply through the one-way diode.
Furthermore, in the starting stage of the engine, the ST line is communicated with a main relay, and the main relay is connected with the ECU low-voltage drive through a gear selection switch; the main relay is selectively communicated with a delay relay, and the delay relay is connected with a starting coil of the starter; the positive electrode of the emergency power supply is communicated with the starter starting end 30 through a delay relay; the start switch B1 is selectively in communication with IG 1.
Furthermore, the positive electrode of the storage battery is connected with the end KL30, a starting switch B1/B2, a starter starting end 30 and a starting stage are connected with the KL30, the starting switch B2 is turned to an ST position, an ST line is communicated with the end 86 of a main relay, a gear selecting switch selects an N gear to enable ST + to be communicated with an ST-, ECU low-voltage driving is started, the main relay works, the end 87 of the main relay is communicated with the end 30, the end 30 of the main relay is communicated with the end 86 of a time delay relay, a loop of a starter starting coil 50 is conducted to prepare for the end 30 of the starter to work, the time delay relay does not start the engine after 10s, the end 87 of the time delay relay is communicated with the end 30, and the positive electrode.
Further, after the engine is started, the generator starts to work, the auxiliary relay is respectively communicated with IG1 and IG2, the auxiliary relay is communicated with the low-voltage driving end of the gateway and is connected with an emergency power supply through a one-way diode to charge the emergency power supply.
Furthermore, the starting switch is turned to an IG1/IG2 position, the ST circuit is powered off, the main relay is powered off and stops working, the time delay relay is powered off and stops working, the emergency power supply stops outputting electric energy, meanwhile, an IG1/IG2 circuit is communicated, an auxiliary relay 86 end is communicated with an IG1 end, an auxiliary relay 85 end is communicated with a gateway low-voltage driving section, after the engine is started, a gateway low-voltage driving end works, the auxiliary relay works, an auxiliary relay 87 end is communicated with an auxiliary relay 30 end, the auxiliary relay 87 end is connected with an IG2 end, an auxiliary relay 30 end is connected with the emergency power supply through a one-way diode, the emergency power supply is charged, after the engine is fully charged, gateway low-.
The working principle of the invention is described as follows:
the invention adopts a front-mounted low-power emergency power supply and is matched with a driving circuit, under the condition that a storage battery cannot be started due to power shortage (cannot be started for a long time), the driving circuit works, the low-power emergency power supply is started, and an engine is started, and the specific working flow is illustrated by the following schematic circuit diagram:
a starting stage: when the voltage of the storage battery is lower than 12V, the selected switch is in an N gear, the ECU is in a low-voltage driving state, the ignition switch is rotated to an ST gear, the main relay is closed, the starting coil of the starter is conducted, the pinion of the starter is popped up, the random starter starting section 30 is connected with the storage battery KL30, the main circuit of the starter is connected, the flywheel of the engine is driven to reach the starting rotating speed due to the low voltage of the storage battery and insufficient energy, so that the engine is always dragged and even in a static state, after the engine is dragged or static for 10S, the delay relay is closed, the emergency starting power supply provides electric energy for the main circuit of the starter, the flywheel of the engine is driven to reach the starting rotating speed.
Charging state of emergency power supply: after the vehicle starts and operates, the generator generates electricity, the gateway immediately starts the low-voltage drive, the relay is switched on, the generator unidirectionally charges the emergency power supply, after the charging is finished, the gateway low-voltage drive is in a high-level state, the relay is switched off, the charging is finished, the emergency power supply prepares for the next emergency starting, and the emergency power supply is in a switched-off state, does not have static current output and can be used for the emergency starting for a long time.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An engine auxiliary starting system with an emergency power supply is characterized by comprising a storage battery, a generator, the emergency power supply, a main relay, an auxiliary relay, a delay relay, a gear selection switch, a starting switch, a starter, an ECU and a gateway; the positive electrode of the storage battery is connected with a KL30 end, and a KL30 end is respectively connected with a starting switch and a starter starting end 30; the start switch B2 is selectively in line communication with the ST line or the IG 2; when the engine is in a starting stage, the main relay is connected with the low-voltage driving end of the ECU through the gear selection switch, and the main relay is connected with the emergency power supply through the delay relay; when the engine is started, the auxiliary relay is connected with the low-voltage driving end of the gateway, and the auxiliary relay is connected with the emergency power supply through the one-way diode.
2. The engine auxiliary starting system with the emergency power supply as claimed in claim 1, wherein in the engine starting stage, the ST line is communicated with a main relay, and the main relay is connected with the ECU low-voltage drive through a gear selection switch; the main relay is selectively communicated with a delay relay, and the delay relay is connected with a starting coil of the starter; the positive electrode of the emergency power supply is communicated with the starter starting end 30 through a delay relay; the start switch B1 is selectively in communication with IG 1.
3. The engine auxiliary starting system with the emergency power supply as claimed in claim 2, wherein the starting switch B2 is turned to the ST position, the ST line is connected to the end of the main relay 86, the gear selecting switch selects the N gear to connect the ST + to the ST-, the ECU is driven to be turned on by low voltage, the main relay is operated, the end of the main relay 87 is connected to the end of the main relay 30, the end of the main relay 30 is connected to the end of the time delay relay 86, the loop of the starter starting coil 50 is conducted to prepare the operation of the starter 30, the time delay relay does not start the engine after 10s, the ends of the time delay relays 87 and 30 are conducted, and the positive pole of the emergency power supply is directly connected to the end of the.
4. The engine auxiliary starting system with the emergency power supply as claimed in claim 1, wherein after the engine is started, the generator starts to work, the auxiliary relay is respectively communicated with IG1 and IG2, the auxiliary relay is communicated with the low-voltage driving end of the gateway and is connected with the emergency power supply through a one-way diode to charge the emergency power supply.
5. The system as claimed in claim 4, wherein the starting switch is turned to IG1/IG2 position, ST circuit is powered off, the main relay is powered off and stops working, further the delay relay is powered off and stops working, the emergency power supply stops outputting electric energy, meanwhile, IG1/IG2 circuit is connected, the auxiliary relay 86 end is connected with IG1, the auxiliary relay 85 end is connected with the gateway low-voltage driving section, after the engine is started, the gateway low-voltage driving end works, the auxiliary relay 87 end is connected with the 30 end, the 87 end is connected with IG2 end, the auxiliary relay 30 end is connected with the emergency power supply through connecting a one-way diode, the emergency power supply is charged, after full charge, the gateway low-voltage driving is closed, the auxiliary relay is disconnected, and the charging of the emergency power supply stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010572899.XA CN111794890A (en) | 2020-06-22 | 2020-06-22 | Engine auxiliary starting system with emergency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010572899.XA CN111794890A (en) | 2020-06-22 | 2020-06-22 | Engine auxiliary starting system with emergency power supply |
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| Publication Number | Publication Date |
|---|---|
| CN111794890A true CN111794890A (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010572899.XA Pending CN111794890A (en) | 2020-06-22 | 2020-06-22 | Engine auxiliary starting system with emergency power supply |
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| CN (1) | CN111794890A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687903A (en) * | 2022-03-31 | 2022-07-01 | 东风越野车有限公司 | Range-extended automobile engine start-stop control system and method and hybrid vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1671944A1 (en) * | 1989-10-30 | 1991-08-23 | Харьковский авиационный институт им.Н.Е.Жуковского | Internal-combustion engine electrostarting system |
| EP0406340B1 (en) * | 1988-12-22 | 1993-12-01 | Robert Bosch Gmbh | Battery-charging device |
| CN1440892A (en) * | 2002-02-26 | 2003-09-10 | 丰田自动车株式会社 | Power supply controlling system for vehicle and its controlling method |
| CN106911150A (en) * | 2015-12-22 | 2017-06-30 | 北京科易动力科技有限公司 | A kind of double cell energy conserving system |
| CN206972420U (en) * | 2017-07-19 | 2018-02-06 | 飞尔特能源(东莞)有限公司 | A kind of generating set double cell set control system |
| CN209159633U (en) * | 2018-11-27 | 2019-07-26 | 深圳创维汽车智能有限公司 | A kind of stand-by power supply circuit, device and the automobile of automotive ignition system |
-
2020
- 2020-06-22 CN CN202010572899.XA patent/CN111794890A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0406340B1 (en) * | 1988-12-22 | 1993-12-01 | Robert Bosch Gmbh | Battery-charging device |
| SU1671944A1 (en) * | 1989-10-30 | 1991-08-23 | Харьковский авиационный институт им.Н.Е.Жуковского | Internal-combustion engine electrostarting system |
| CN1440892A (en) * | 2002-02-26 | 2003-09-10 | 丰田自动车株式会社 | Power supply controlling system for vehicle and its controlling method |
| CN106911150A (en) * | 2015-12-22 | 2017-06-30 | 北京科易动力科技有限公司 | A kind of double cell energy conserving system |
| CN206972420U (en) * | 2017-07-19 | 2018-02-06 | 飞尔特能源(东莞)有限公司 | A kind of generating set double cell set control system |
| CN209159633U (en) * | 2018-11-27 | 2019-07-26 | 深圳创维汽车智能有限公司 | A kind of stand-by power supply circuit, device and the automobile of automotive ignition system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687903A (en) * | 2022-03-31 | 2022-07-01 | 东风越野车有限公司 | Range-extended automobile engine start-stop control system and method and hybrid vehicle |
| CN114687903B (en) * | 2022-03-31 | 2023-05-12 | 东风越野车有限公司 | Start-stop control system and method for extended range automobile engine and hybrid vehicle |
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Application publication date: 20201020 |
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