CN104533685B - Engine starting control system used for flexible fuel vehicle - Google Patents
Engine starting control system used for flexible fuel vehicle Download PDFInfo
- Publication number
- CN104533685B CN104533685B CN201410698322.8A CN201410698322A CN104533685B CN 104533685 B CN104533685 B CN 104533685B CN 201410698322 A CN201410698322 A CN 201410698322A CN 104533685 B CN104533685 B CN 104533685B
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- CN
- China
- Prior art keywords
- engine
- control
- relay
- main relay
- control unit
- Prior art date
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Classifications
-
- 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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an engine starting control system used for a flexible fuel vehicle. The engine starting control system used for the flexible fuel vehicle comprises an engine control unit, a main relay, a starting control relay and a starter; the coil of the main relay is connected between a main relay control pin of the engine control unit and the positive electrode of a storage battery; the contact of the main relay and the contact of the starting control relay are connected between the positive electrode of the storage battery and the starter in series; the contacts of the main relay and starting control relay are normally open contacts; the coil of the starting control relay is connected between a starter control pin and an ignition signal pin; when the engine control unit works, the main relay control pin is located at a low potential, when the engine control unit stops working, the main relay control pin is located at a high-resistance state; when the engine control unit works, if an oil rail locates at a heating state, the starter control pin is located at a high-resistance value state. The engine starting control system used for the flexible fuel vehicle is capable of forbidding the engine to work before finishing heating fuel oil so as to prevent starting failure.
Description
Technical field
The present invention relates to new forms of energy driving skills art, the engine starting control system that more particularly to a kind of flexible fuel vehicle is used
System.
Background technology
Flexible fuel vehicle (FFV：Flexible Fuel Vehicle) it is primarily referred to as that pure gasoline, pure alcohol ate can be used
And the automobile of the fuel combination of the gasoline and alcohol ate of different proportion.
Flexible fuel vehicle ethanol content used in same fuel tank is 22% to 100% ethanol petrol.Due to
Ethanol volatile performance at low temperature is very poor, under certain conditions (such as when the ethanol content in fuel oil more than 85% and
When environment temperature is below 15 degree), need in the heating chamber of oily rail first fuel Heating to target temperature after, could start
Dynamic engine.If beginning to start engine when fuel oil is also not reaching to target temperature, starting failure can be caused.
There is part flexible fuel vehicle with keyless entry and starting system (PEPS), engine controller can be in combustion
Restart engine after the completion of oil heating, prevent starting failure.But it is how complete in fuel Heating for without the automobile of PEPS
Into front forbidding starter to work, a problem to be solved is remained.
The content of the invention
The technical problem to be solved in the present invention is to provide the engine start control system that a kind of flexible fuel vehicle is used,
For without the flexible fuel vehicle of keyless entry and starting system (PEPS), forbidding starting before fuel Heating is completed
Machine works, and prevents starting failure.
To solve above-mentioned technical problem, the engine start control system that uses of flexible fuel vehicle that the present invention is provided,
Including control unit of engine, main relay, starting control relay, starter, ignition switch；
The coil of the main relay, be connected on the control unit of engine main relay control stitch with storage battery just it
Between；
The contact of the main relay, with the contact of the starting control relay, be serially connected in storage battery just with starter it
Between；The contact of the main relay and the contact of the starting control relay, are normally opened contact；
The coil of the starting control relay, is connected on the starter control stitch of the control unit of engine with igniting
Between signal pins；
The ignition switch, be connected on the ignition signal stitch of the control unit of engine with storage battery just between；
The control unit of engine, main relay control stitch is in electronegative potential, main relay when quitting work during work
Device controls stitch for high-impedance state；
The control unit of engine, during work, if oily rail is heated condition, starter control stitch height is set to
Resistance value state.
Preferably, the control unit of engine, during work, if oily rail is not heated condition, and other allow to send out
The condition of engine start is satisfied by, then starter control stitch is set to electronegative potential.
Preferably, it is described other allow engines start condition, including engine speed be not higher than setting value, storage battery electricity
Pressure is not less than setting value.
Preferably, the engine start control system that the flexible fuel vehicle is used, also adds thermal control including fuel oil oil rail
Device processed；
The fuel oil oil rail heating controller, for detecting whether oily rail is heated condition, and exports oily rail heated condition
Signal is to the engine controller.
Preferably, in the concatenation loop at the contact place of the contact of the main relay and starting control relay, being connected to
Fuse.
The engine start control system that the flexible fuel vehicle of the present invention is used, control unit of engine (ECU) work
When, main relay control stitch PIN 1 is in electronegative potential, and main relay is in closure state.Before the engine is started up, when oily rail
In heated condition when, starter control stitch PIN 2 is set to high resistant state of value, now when the starting that driver has stubborn key is moved
Make, ignition switch closure, ignition signal stitch PIN 3 is high potential, and control unit of engine (ECU) is identified as start signal,
But because starter control stitch PIN 2 is set to high resistant state of value, starter control relay is off, and starter is not
Can work, so avoid the starting failure because fuel oil is also not reaching to target temperature.
Description of the drawings
In order to be illustrated more clearly that technical scheme, below the accompanying drawing to using required for the present invention makees simple
Introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill people
For member, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is an embodiment schematic diagram of the engine start control system that the flexible fuel vehicle of the present invention is used.
Specific embodiment
Below in conjunction with accompanying drawing, clear, complete description is carried out to the technical scheme in the present invention, it is clear that described
Embodiment is a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is general
All other embodiment that logical technical staff is obtained on the premise of creative work is not made, belongs to protection of the present invention
Scope.
One embodiment of the engine start control system that the flexible fuel vehicle of the present invention is used, as shown in figure 1, bag
Include control unit of engine (ECU), main relay, starting control relay, starter, ignition switch；
The coil of the main relay, is connected on the main relay control stitch PIN 1 of the control unit of engine with electricity
Bottle just between；
The contact of the main relay, with the contact of the starting control relay, be serially connected in storage battery just with starter it
Between；The contact of the main relay and the contact of the starting control relay, are normally opened contact；
The coil of the starting control relay, is connected on the starter control stitch PIN 2 of the control unit of engine
With between ignition signal stitch PIN 3；
The ignition switch, be connected on the ignition signal stitch of the control unit of engine with storage battery just between；
The control unit of engine, main relay control stitch PIN 1 is in electronegative potential, master when quitting work during work
Control stitch PIN 1 is high-impedance state；
The control unit of engine, during work, if oily rail is heated condition, starter control stitch PIN 2
It is set to high resistant state of value.
Preferably, the control unit of engine, during work, if oily rail is not heated condition, and other allow to send out
The condition (for example, engine speed is not higher than setting value, and battery voltage is not less than setting value) of engine start is satisfied by, then rise
Motivation control stitch PIN 2 is set to electronegative potential.
Preferably, the engine start control system that flexible fuel vehicle is used, also including fuel oil oil rail heating controller
(HCU)；
The fuel oil oil rail heating controller, for detecting whether oily rail is heated condition, and exports oily rail heated condition
Signal is to the engine controller (ECU).
Preferably, in the concatenation loop of the contact of the contact of the main relay and starting control relay, being connected to insurance
Silk.
The engine start control system that the flexible fuel vehicle of the present invention is used, in the engine control of flexible fuel vehicle
A starting control relay is accessed in the circuit of unit (ECU) processed, starter and ignition switch.The line of starting control relay
Circle is connected between the starter of control unit of engine (ECU) control stitch PIN 2 and ignition signal stitch PIN 3, is started
The normally opened contact of control relay is connected to starter between the normally opened contact of main relay.
When control unit of engine (ECU) works, main relay control stitch PIN 1 is in electronegative potential, at main relay
In closure state.Before the engine is started up, when oily rail is in heated condition, starter control stitch PIN 2 is set to high value
State, now when driver has the starting action of stubborn key, ignition switch closure, ignition signal stitch PIN 3 is high potential, is sent out
Motivation control unit (ECU) is identified as start signal, but because starter control stitch PIN 2 is set to high resistant state of value, starts
Machine control relay is off, and starter will not work, and so avoids because fuel oil is also not reaching to target temperature
And starting failure.
It is not heated condition in the oily rail of fruit, and other are when allowing the condition that engines are started to be satisfied by, engine control
Unit (ECU) can be set to electronegative potential starter control stitch PIN 2, and now driver can turn key to open igniting
Close and close, then starter control relay can be closed, and starter will start working.
The engine start control system that the flexible fuel vehicle of the present invention is used, for without keyless entry and starting
The flexible fuel vehicle of system (PEPS), before the fuel oil in oily rail heating chamber is heated to target temperature, can forbid
Motivation works, and prevents starting failure.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (5)
1. the engine start control system that a kind of flexible fuel vehicle is used, it is characterised in that including control unit of engine,
Main relay, starting control relay, starter, ignition switch；
The coil of the main relay, be connected on the main relay of the control unit of engine control stitch with storage battery just between；
The contact of the main relay, with the contact of the starting control relay, is serially connected in storage battery just between starter；Institute
The contact of main relay and the contact of the starting control relay are stated, normally opened contact is；
The coil of the starting control relay, is connected on the same ignition signal of starter control stitch of the control unit of engine
Between stitch；
The ignition switch, be connected on the ignition signal stitch of the control unit of engine with storage battery just between；
The control unit of engine, main relay control stitch is in electronegative potential, main relay control when quitting work during work
Stitch processed is high-impedance state；
The control unit of engine, during work, if oily rail is heated condition, starter control stitch high value is set to
State.
2. the engine start control system that flexible fuel vehicle according to claim 1 is used, it is characterised in that
The control unit of engine, during work, if oily rail is not heated condition, and other allow the bar that engine is started
Part is satisfied by, then starter control stitch is set to electronegative potential.
3. the engine start control system that flexible fuel vehicle according to claim 2 is used, it is characterised in that
The condition that other allow engines to start, including engine speed is not higher than setting value, battery voltage and is not less than and set
Definite value.
4. the engine start control system that the flexible fuel vehicle according to claim 1,2 or 3 is used, its feature exists
In,
The engine start control system that the flexible fuel vehicle is used, also including fuel oil oil rail heating controller；
The fuel oil oil rail heating controller, for detecting whether oily rail is heated condition, and exports oily rail heated condition signal
To the engine controller.
5. the engine start control system that the flexible fuel vehicle according to claim 1,2 or 3 is used, its feature exists
In,
In the concatenation loop that the contact of the main relay and the contact of starting control relay are located, fuse is connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410698322.8A CN104533685B (en) | 2014-11-27 | 2014-11-27 | Engine starting control system used for flexible fuel vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410698322.8A CN104533685B (en) | 2014-11-27 | 2014-11-27 | Engine starting control system used for flexible fuel vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533685A CN104533685A (en) | 2015-04-22 |
| CN104533685B true CN104533685B (en) | 2017-05-10 |
Family
ID=52849276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410698322.8A Active CN104533685B (en) | 2014-11-27 | 2014-11-27 | Engine starting control system used for flexible fuel vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN104533685B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545425A (en) * | 2015-09-16 | 2017-03-29 | 联合汽车电子有限公司 | The engine start control method that flexible fuel vehicle is used |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010062202A1 (en) * | 2010-11-30 | 2012-05-31 | Robert Bosch Gmbh | Controlling arrangement for start of internal combustion engine, has voltage regulator module, in which up-converter is integrated |
| CN202545089U (en) * | 2012-04-27 | 2012-11-21 | 联合汽车电子有限公司 | Automatic transmission vehicle starter control device with start-stop function |
| CN203035428U (en) * | 2012-12-27 | 2013-07-03 | 安徽江淮汽车股份有限公司 | Starter control system of ethanol fuel engine |
| CN103229410A (en) * | 2010-12-07 | 2013-07-31 | 罗伯特·博世有限公司 | Circuit arrangement for an electrical machine, method for operating a circuit arrangement, starter device |
| CN203670074U (en) * | 2014-01-08 | 2014-06-25 | 山东润峰汽车车身制造有限公司 | Engine starting circuit |
| CN203847307U (en) * | 2014-05-28 | 2014-09-24 | 安徽江淮汽车股份有限公司 | Starting circuit of starting engine |
-
2014
- 2014-11-27 CN CN201410698322.8A patent/CN104533685B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010062202A1 (en) * | 2010-11-30 | 2012-05-31 | Robert Bosch Gmbh | Controlling arrangement for start of internal combustion engine, has voltage regulator module, in which up-converter is integrated |
| CN103229410A (en) * | 2010-12-07 | 2013-07-31 | 罗伯特·博世有限公司 | Circuit arrangement for an electrical machine, method for operating a circuit arrangement, starter device |
| CN202545089U (en) * | 2012-04-27 | 2012-11-21 | 联合汽车电子有限公司 | Automatic transmission vehicle starter control device with start-stop function |
| CN203035428U (en) * | 2012-12-27 | 2013-07-03 | 安徽江淮汽车股份有限公司 | Starter control system of ethanol fuel engine |
| CN203670074U (en) * | 2014-01-08 | 2014-06-25 | 山东润峰汽车车身制造有限公司 | Engine starting circuit |
| CN203847307U (en) * | 2014-05-28 | 2014-09-24 | 安徽江淮汽车股份有限公司 | Starting circuit of starting engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104533685A (en) | 2015-04-22 |
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