CN103821625A - Engine fuel injection control circuit and method - Google Patents
Engine fuel injection control circuit and method Download PDFInfo
- Publication number
- CN103821625A CN103821625A CN201410045788.8A CN201410045788A CN103821625A CN 103821625 A CN103821625 A CN 103821625A CN 201410045788 A CN201410045788 A CN 201410045788A CN 103821625 A CN103821625 A CN 103821625A
- Authority
- CN
- China
- Prior art keywords
- voltage
- accumulator
- circuit
- output
- control circuit
- 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.)
- Granted
Links
Images
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention provides an engine fuel injection control circuit and method. The engine fuel injection control circuit comprises a current-limit stabilizing circuit, a one-way breakover circuit, an accumulation circuit and a control circuit which are connected in sequence. When a T15 switch is on, a T15 signal is high level, power supply voltage is stabilized to a preset voltage range through the current-limit stabilizing circuit and output to the accumulation circuit through the one-way breakover circuit to charge a capacitor in the accumulation circuit, and when the value of the voltage output by the accumulation circuit is higher than that of breakover voltage, the control circuit controls a fuel injection master switch to be on. When the T15 switch is off, the T15 signal is low level, the capacitor in the accumulation circuit discharges, the output voltages lowers gradually, the control circuit controls the fuel injection master switch to be off when the value of the voltage output by the accumulation circuit is lower than that of the breakover voltage, and engine fuel injection control is achieved. When a single-chip microcomputer operates abnormally and cannot normally controls an ECU to shut when the T15 switch is off, the fuel injection master switch can be turned off by the engine fuel injection control circuit, and an engine can be stopped.
Description
Technical field
The present invention relates to automation field, particularly relate to a kind of motor fuel injection control circuit and controlling method.
Background technique
In the motor of automatical control system, electronic control unit (Electronic Control Unit, ECU) is the core component that control engine runs well, the normal operation of control engine and closing.T15 is the enable signal of controlling ECU work, and T15 signal is detected by the single-chip microcomputer on ECU.
When T15 closes, the single-chip microcomputer on ECU detects that T15 is low level, control ECU carry out data preservation and backup after quit work, after ECU quits work, motor also shuts down.In the time that T15 opens, the single-chip microcomputer on ECU detects that T15 is high level, controls ECU and starts working, and after ECU starts working, control engine runs well.
But in the time of single-chip microcomputer operation irregularity on ECU, single-chip microcomputer cannot detect T15 signal, even if or T15 signal detected, cannot normally control ECU and quit work, will cause and in the time that emergency braking needs shutting theengine down, cause braking abnormal, cause security incident.
Summary of the invention
In view of this, the invention provides a kind of motor fuel injection control circuit and controlling method, in the time that T15 switch cuts out, accumulator is discharged to the conducting voltage of output voltage lower than control circuit, control circuit control oil spout main switch cuts out, and realizes the braking to motor in the time of single-chip microcomputer operation irregularity.
A kind of motor fuel injection control circuit, described circuit comprises:
Flow-limiting voltage-stabilizing circuit, one-way conduction circuit, accumulator and control circuit are connected successively;
Described flow-limiting voltage-stabilizing circuit, in the time that T15 signal is high level, is stabilized to the output of predeterminated voltage scope by supply voltage, to accumulator power supply, and by the electric energy of output voltage range control energy-storage module;
Described one-way conduction circuit, by the unidirectional accumulator that exports to of electric current of voltage regulation of described flow-limiting voltage-stabilizing circuit output, and reverse cut-off current;
Described accumulator, in the time that T15 signal is high level, the capacitor charging in accumulator, is full of rear electric energy and is stabilized in default energy value, and the magnitude of voltage of output is stabilized in predeterminated voltage value; In the time that T15 signal is low level, the electric capacity in accumulator discharges by discharge loop, and the output voltage of accumulator declines gradually;
Described control circuit, for detection of the magnitude of voltage of accumulator output, when the magnitude of voltage of accumulator output is during higher than conducting voltage, controls oil spout main switch and opens; When the magnitude of voltage of accumulator output is during lower than conducting voltage, to control oil spout main switch and close, accumulator is discharged to output voltage and is greater than lower than the time delay of conducting voltage the time delay that Single-chip Controlling ECU closes.
Optionally, described circuit also comprises:
RC eliminator, before RC eliminator is arranged on flow-limiting voltage-stabilizing circuit, carries out filtering to supply voltage, reduces the interference of supply voltage.
Optionally, described circuit also comprises:
Temperature-compensation circuit, temperature-compensation circuit is connected with control circuit with flow-limiting voltage-stabilizing circuit, the impact of compensates on switching tube in electric capacity in accumulator and control circuit.
Optionally, described flow-limiting voltage-stabilizing circuit comprises:
Reference diode or voltage stabilizing chip.
Optionally, described accumulator comprises:
Storage capacitor and two discharge resistances, in the time that T15 signal is low level, storage capacitor and two discharge resistance composition discharge loops.
Optionally, described control circuit comprises:
Switching tube and not gate chip;
Switching tube detects the magnitude of voltage of accumulator output, and when the magnitude of voltage of accumulator output is during higher than conducting voltage, to not gate chip output high level, not gate chip output low level control oil spout main switch is opened; When the magnitude of voltage of accumulator output is during lower than conducting voltage, to not gate chip output low level, not gate chip output high level control oil spout main switch cuts out.
A kind of motor fuel injection control method, described method comprises:
In the time that T15 switch is closed, flow-limiting voltage-stabilizing circuit is stabilized to predeterminated voltage scope by supply voltage and exports one-way conduction circuit to;
One-way conduction circuit is by the unidirectional electric current of voltage regulation accumulator that exports to, to the capacitor charging in accumulator, the magnitude of voltage of described accumulator output constantly increases, until the electric energy in accumulator is stabilized in default energy value, output voltage stabilization is in predeterminated voltage value;
The magnitude of voltage that control circuit detects accumulator output during higher than conducting voltage, is controlled oil spout main switch and is opened;
In the time that T15 switch cuts out, the electric capacity in accumulator discharges by discharge loop, and the output voltage of accumulator declines gradually;
The magnitude of voltage that control circuit detects accumulator output during lower than conducting voltage, is controlled oil spout main switch and is closed, and accumulator is discharged to output voltage and is greater than lower than the time delay of conducting voltage the time delay that Single-chip Controlling ECU closes.
Optionally, described method also comprises:
RC eliminator carries out filtering to supply voltage, exports filtered supply voltage to flow-limiting voltage-stabilizing circuit.
Optionally, described method also comprises:
The impact of temperature-compensation circuit compensates on the switching tube in electric capacity and control circuit in accumulator.
As shown in the above, the present invention has following beneficial effect:
The invention provides a kind of motor fuel injection control circuit and controlling method, described circuit comprises: flow-limiting voltage-stabilizing circuit, one-way conduction circuit, accumulator and control circuit are connected successively, in the time of T15 switch open, T15 signal is high level, supply voltage exports accumulator to by one-way conduction circuit after flow-limiting voltage-stabilizing circuit is stabilized to predeterminated voltage scope, give the capacitor charging in accumulator, and by the electric energy of output voltage range control energy-storage module, the output voltage values of accumulator increases gradually, when the output voltage values of accumulator is during higher than conducting voltage, control circuit control oil spout main switch is opened, the electric energy being full of in rear accumulator is stabilized in default energy value, the voltage stabilization of output is in predeterminated voltage value, in the time that T15 switch cuts out, T15 signal is low level, the capacitor discharge in accumulator, the voltage of output declines gradually, when the output voltage values of accumulator is during lower than conducting voltage, control circuit control oil spout main switch cuts out, and realizes the control to motor oil spout.Wherein, the electric capacity of accumulator starts to discharge into and is discharged to accumulator output voltage and is greater than lower than the time delays between conducting voltage the time delay that Single-chip Controlling ECU closes, that is to say, when single-chip microcomputer operation irregularity, cannot normally control ECU in the time that T15 switch cuts out and close time, circuit provided by the present invention can be closed oil spout main switch, makes engine stop work.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of motor fuel injection control circuit of the present invention embodiment one structural representation;
Fig. 2 is a kind of motor fuel injection control circuit of the present invention embodiment one specific implementation circuit diagram;
Fig. 3 is a kind of motor fuel injection control circuit of the present invention filtering compensation structural representation;
Fig. 4 is a kind of motor fuel injection control circuit of the present invention filtering compensation specific implementation circuit diagram;
Fig. 5 is a kind of motor fuel injection control method of the present invention embodiment two flow charts.
Embodiment
The invention provides a kind of motor fuel injection control circuit and controlling method, in the time that T15 switch cuts out, accumulator is discharged to the conducting voltage of output voltage lower than control circuit, and control circuit control oil spout main switch cuts out, and in the time of single-chip microcomputer operation irregularity, realizes and killing engine.
Below in conjunction with accompanying drawing, the embodiment of the present invention is specifically described.
Embodiment one
Fig. 1 is a kind of motor fuel injection control circuit of the present invention embodiment one structural representation, and described circuit comprises:
Flow-limiting voltage-stabilizing circuit 101, one-way conduction circuit 102, accumulator 103 and control circuit 104 are connected successively.
Described flow-limiting voltage-stabilizing circuit 101, in the time that T15 signal is high level, is stabilized to the output of predeterminated voltage scope by supply voltage, to accumulator power supply, and by the electric energy of output voltage range control energy-storage module.
Described flow-limiting voltage-stabilizing circuit 101 is connected with T15 switch, and T15 switch is connected with power supply, and in the time that T15 switch is closed, T15 signal is high level, exports supply voltage to flow-limiting voltage-stabilizing circuit 101.Flow-limiting voltage-stabilizing circuit 101 is stabilized in supply voltage in preset range and exports.Supply voltage generally fluctuates between 9V～32V, and flow-limiting voltage-stabilizing circuit 101 can be stabilized in supply voltage between 8V～9V, eliminates the unstable impact to the set delay time of accumulator of supply voltage.The predeterminated voltage scope that flow-limiting voltage-stabilizing circuit 101 is exported determines the electric energy that accumulator can be stored.
Wherein, flow-limiting voltage-stabilizing circuit 101 comprises reference diode or voltage stabilizing chip.What as shown in Figure 2, in the embodiment of the present invention, flow-limiting voltage-stabilizing circuit 101 adopted is reference diode 201.
Described one-way conduction circuit 102, electric current of voltage regulation that described flow-limiting voltage-stabilizing circuit 101 is exported is unidirectional exports accumulator 103 to, and reverse cut-off current, guarantees that accumulator is according to set discharge loop electric discharge.
The electric current of voltage regulation that one-way conduction circuit 102 is exported flow-limiting voltage-stabilizing circuit 101 exports accumulator 103 to, and realizes reverse cut-off current.The function of the reverse cut-off current of one-way conduction circuit 102 is mainly oppositely to end the discharge current of accumulator 103, realize accumulator 103 by set discharge loop electric discharge, discharge current can not oppositely export flow-limiting voltage-stabilizing circuit 101 to, guarantee the uniqueness of discharge loop, accurately the controlled discharge time.
What as shown in Figure 2, in the embodiment of the present invention, one-way conduction circuit 102 adopted is diode 202.
Described accumulator 103, in the time that T15 signal is high level, the capacitor charging in accumulator 103, is full of rear electric energy and is stabilized in default energy value, and the magnitude of voltage of output is stabilized in predeterminated voltage value; In the time that T15 signal is low level, the electric capacity in accumulator 103 discharges by discharge loop, and the output voltage of accumulator 103 declines gradually.
In the time that T15 switch is closed, T15 signal is high level, electric capacity in accumulator 103 starts charging, the voltage at accumulator 103 two ends increases gradually, after the electric capacity in accumulator 103 is full of, electric energy in electric capacity is stabilized in default energy value, and the output voltage stabilization of accumulator 103 is in predeterminated voltage value.
The electric energy that in accumulator 103, electric capacity is stored can be set voluntarily according to actual conditions, relating to parameters with electric capacity, the electric energy of capacitance stores is more, from starting to discharge into, to be discharged to the time delay of conducting voltage longer, that is to say, by the parameter of the electric capacity in accumulator 103 is set, can control the discharge lag of accumulator 103.
As shown in Figure 2, accumulator 103 comprises storage capacitor 203 and two discharge resistances 204 and 205, in the time that T15 signal is low level, and storage capacitor 203 and two discharge resistance 204 and 205 composition discharge loops.
In the time that T15 switch cuts out, T15 signal is low level, and the storage capacitor 203 in accumulator 103 starts electric discharge, and storage capacitor 203 and two discharge resistances 204 and 205 are connected to form discharge loop successively, two discharge resistances 204 are connected with storage capacitor 203 with 205 one end, the other end ground connection.In storage capacitor 203, the electric energy of storage is by 204 and 205 electric discharges of two discharge resistances, and accumulator 103 output voltages decline gradually.
In the time that T15 switch disconnects, T15 signal is low level, and the electric capacity in accumulator 103 discharges by discharge loop, and the output voltage of accumulator 103 declines gradually.Discharge loop one end ground connection, one end is connected with the electric capacity of accumulator 103.
Described control circuit 104, the magnitude of voltage of exporting for detection of accumulator 103, the magnitude of voltage of exporting when accumulator 103 during higher than conducting voltage, is controlled oil spout main switch and is opened; The magnitude of voltage of exporting when accumulator 103 during lower than conducting voltage, is controlled oil spout main switch and is closed, and accumulator 103 is discharged to output voltage and is greater than lower than the time delay of conducting voltage the time delay that Single-chip Controlling ECU closes.
In the time that T15 switch cuts out, T15 signal is low level, the capacitor discharge of accumulator 103, the voltage of accumulator output reduces gradually, and accumulator 103 is greater than lower than the time delay of the conducting voltage of control circuit 104 time delay that Single-chip Controlling ECU closes from starting to be discharged to output voltage.
When single-chip microcomputer operation irregularity, uncontrollable ECU closes, and then when the work of uncontrollable engine stop, because accumulator 103 is greater than lower than the time delay of the conducting voltage of control circuit 104 time delay that Single-chip Controlling ECU closes from starting to be discharged to output voltage, a kind of motor fuel injection control circuit provided by the present invention can be controlled oil spout main switch and close, thereby engine stop oil spout, control engine quits work.For control engine is when the emergency braking, control engine quits work provides further guarantee, improves the Security of automatically controlled locomotive.
Wherein, as shown in Figure 2, described control circuit 104 comprises switching tube 206 and not gate chip 207.
In practical application of the present invention, as shown in Figure 3, motor fuel injection control circuit also comprises RC eliminator 301.Before RC eliminator 301 is arranged on flow-limiting voltage-stabilizing circuit 101, supply voltage is carried out to filtering, reduce the interference of supply voltage.
In practical application of the present invention, as shown in Figure 3, motor fuel injection control circuit also comprises temperature-compensation circuit 302, and temperature-compensation circuit 302 is connected with control circuit 104 with flow-limiting voltage-stabilizing circuit 101, the impact of compensates on switching tube in electric capacity in accumulator and control circuit.The voltage range that temperature-compensation circuit control flow-limiting voltage-stabilizing voltage adapts according to temperature variation output and temperature variation, guarantees the not temperature influence of electric energy that accumulator is stored, and guarantees the accurately controlled of accumulator discharge lag.
Fig. 4 is the physical circuit schematic diagram that comprises RC eliminator 301 and temperature-compensation circuit 302.Wherein, temperature-compensation circuit 302 is the conventional temperature compensation network being made up of multiple triodes or CMOS.
As shown in the above, the present invention has following beneficial effect:
The invention provides a kind of motor fuel injection control circuit and controlling method, described circuit comprises: flow-limiting voltage-stabilizing circuit, one-way conduction circuit, accumulator and control circuit are connected successively, in the time of T15 switch open, T15 signal is high level, supply voltage exports accumulator to by one-way conduction circuit after flow-limiting voltage-stabilizing circuit is stabilized to predeterminated voltage scope, capacitor charging in accumulator, the output voltage values of accumulator increases gradually, when the output voltage values of accumulator is during higher than conducting voltage, control circuit control oil spout main switch is opened, the electric energy being full of in rear accumulator is stabilized in default energy value, the voltage stabilization of output is in predeterminated voltage value, in the time that T15 switch cuts out, T15 signal is low level, the capacitor discharge in accumulator, the voltage of output declines gradually, when the output voltage values of accumulator is during lower than conducting voltage, control circuit control oil spout main switch cuts out, and realizes the control to motor oil spout.Wherein, the electric capacity of accumulator starts to discharge into and is discharged to accumulator output voltage and is greater than lower than the time delays between conducting voltage the time delay that Single-chip Controlling ECU closes, that is to say, when single-chip microcomputer operation irregularity, cannot normally control ECU in the time that T15 switch cuts out and close time, circuit provided by the present invention can be closed oil spout main switch, makes engine stop work.
Embodiment two
Fig. 5 is a kind of motor fuel injection control method of the present invention embodiment two flow charts, is and the corresponding method of described circuit that described method comprises:
Step 501: in the time that T15 switch is closed, flow-limiting voltage-stabilizing circuit is stabilized to predeterminated voltage scope by supply voltage and exports one-way conduction circuit to.
T15 switch closure, supply voltage is stabilized in output value one-way conduction circuit between 8V～9V by flow-limiting voltage-stabilizing circuit.
Step 502: one-way conduction circuit is by the unidirectional electric current of voltage regulation accumulator that exports to, to the capacitor charging in accumulator, the magnitude of voltage of described accumulator output constantly increases, until the electric energy in accumulator is stabilized in default energy value, output voltage stabilization is in predeterminated voltage value.
When T15 switch is closed, one-way conduction circuit, by the single-phase accumulator that exports to of electric current of voltage regulation of flow-limiting voltage-stabilizing circuit output, is given the capacitor charging of accumulator, and output voltage constantly increases.When the electric capacity of accumulator is full of electricity, electric energy is stabilized in default energy value, and output voltage stabilization is in predeterminated voltage value.The storable electric energy of electric capacity in accumulator and the relating to parameters of electric capacity, the electric energy that electric capacity is stored is more, and the time delay of capacitor discharge is longer, thereby the discharge lag of the parameter control accumulator of electric capacity can be set as required.
Step 503: the magnitude of voltage that control circuit detects accumulator output during higher than conducting voltage, is controlled oil spout main switch and opened.
When the output voltage of accumulator is during higher than conducting voltage, the switching tube of control circuit is opened, and the not gate chip output low level of control circuit is controlled oil spout main switch and opened, and motor is started working.
Step 504: in the time that T15 switch cuts out, the electric capacity in accumulator discharges by discharge loop, and the output voltage of accumulator declines gradually.
In the time that T15 switch cuts out, the electric capacity of accumulator starts to discharge by discharge loop, and one-way conduction circuit prevents that discharge current from oppositely flowing into flow-limiting voltage-stabilizing circuit, and the output voltage of accumulator declines gradually.
Step 505: the magnitude of voltage that control circuit detects accumulator output during lower than conducting voltage, is controlled oil spout main switch and closed, and accumulator is discharged to output voltage and is greater than lower than the time delay of conducting voltage the time delay that Single-chip Controlling ECU closes.
When the output voltage of accumulator is during lower than the conducting voltage of the switching tube of control circuit, not gate chip output high level, controls oil spout main switch and closes, and engine stop oil spout, realizes control engine and quit work.
In actual applications, described method also comprises that RC eliminator carries out filtering to supply voltage, exports filtered supply voltage to flow-limiting voltage-stabilizing circuit.
Described method also comprises the impact of employing temperature-compensation circuit compensates on the switching tube in electric capacity and control circuit in accumulator.
The conducting voltage temperature influence of the switching tube in electric energy and control circuit that the electric capacity in accumulator is stored is larger, the temperature-compensation circuit of setting and accumulator and switching tube, is used for the impact of conducting voltage of electric energy that compensates stores electric capacity and switching tube.Improve a kind of control accuracy of motor fuel injection control circuit, reduce the impact of ambient temperature on control accuracy.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a motor fuel injection control circuit, is characterized in that, described circuit comprises:
Flow-limiting voltage-stabilizing circuit, one-way conduction circuit, accumulator and control circuit are connected successively;
Described flow-limiting voltage-stabilizing circuit, in the time that T15 signal is high level, is stabilized to the output of predeterminated voltage scope by supply voltage, to accumulator power supply, and by the electric energy of output voltage range control energy-storage module;
Described one-way conduction circuit, by the unidirectional accumulator that exports to of electric current of voltage regulation of described flow-limiting voltage-stabilizing circuit output, and reverse cut-off current;
Described accumulator, in the time that T15 signal is high level, the capacitor charging in accumulator, is full of rear electric energy and is stabilized in default energy value, and the magnitude of voltage of output is stabilized in predeterminated voltage value; In the time that T15 signal is low level, the electric capacity in accumulator discharges by discharge loop, and the output voltage of accumulator declines gradually;
Described control circuit, for detection of the magnitude of voltage of accumulator output, when the magnitude of voltage of accumulator output is during higher than conducting voltage, controls oil spout main switch and opens; When the magnitude of voltage of accumulator output is during lower than conducting voltage, to control oil spout main switch and close, accumulator is discharged to output voltage and is greater than lower than the time delay of conducting voltage the time delay that Single-chip Controlling ECU closes.
2. circuit according to claim 1, is characterized in that, described circuit also comprises:
RC eliminator, before RC eliminator is arranged on flow-limiting voltage-stabilizing circuit, carries out filtering to supply voltage, reduces the interference of supply voltage.
3. circuit according to claim 1, is characterized in that, described circuit also comprises:
Temperature-compensation circuit, temperature-compensation circuit is connected with control circuit with flow-limiting voltage-stabilizing circuit, the impact of compensates on switching tube in electric capacity in accumulator and control circuit.
4. according to the circuit described in claim 1-3 any one, it is characterized in that, described flow-limiting voltage-stabilizing circuit comprises:
Reference diode or voltage stabilizing chip.
5. according to the circuit described in claim 1-3 any one, it is characterized in that, described accumulator comprises:
Storage capacitor and two discharge resistances, in the time that T15 signal is low level, storage capacitor and two discharge resistance composition discharge loops.
6. according to the circuit described in claim 1-3 any one, it is characterized in that, described control circuit comprises:
Switching tube and not gate chip;
Switching tube detects the magnitude of voltage of accumulator output, and when the magnitude of voltage of accumulator output is during higher than conducting voltage, to not gate chip output high level, not gate chip output low level control oil spout main switch is opened; When the magnitude of voltage of accumulator output is during lower than conducting voltage, to not gate chip output low level, not gate chip output high level control oil spout main switch cuts out.
7. a motor fuel injection control method, is characterized in that, described method comprises:
In the time that T15 switch is closed, flow-limiting voltage-stabilizing circuit is stabilized to predeterminated voltage scope by supply voltage and exports one-way conduction circuit to;
One-way conduction circuit is by the unidirectional electric current of voltage regulation accumulator that exports to, to the capacitor charging in accumulator, the magnitude of voltage of described accumulator output constantly increases, until the electric energy in accumulator is stabilized in default energy value, output voltage stabilization is in predeterminated voltage value;
The magnitude of voltage that control circuit detects accumulator output during higher than conducting voltage, is controlled oil spout main switch and is opened;
In the time that T15 switch cuts out, the electric capacity in accumulator discharges by discharge loop, and the output voltage of accumulator declines gradually;
The magnitude of voltage that control circuit detects accumulator output during lower than conducting voltage, is controlled oil spout main switch and is closed, and accumulator is discharged to output voltage and is greater than lower than the time delay of conducting voltage the time delay that Single-chip Controlling ECU closes.
8. method according to claim 7, is characterized in that, described method also comprises:
RC eliminator carries out filtering to supply voltage, exports filtered supply voltage to flow-limiting voltage-stabilizing circuit.
9. method according to claim 8, is characterized in that, described method also comprises:
The impact of temperature-compensation circuit compensates on the switching tube in electric capacity and control circuit in accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045788.8A CN103821625B (en) | 2014-02-08 | 2014-02-08 | A kind of engine fuel injection control circuit and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045788.8A CN103821625B (en) | 2014-02-08 | 2014-02-08 | A kind of engine fuel injection control circuit and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103821625A true CN103821625A (en) | 2014-05-28 |
| CN103821625B CN103821625B (en) | 2016-05-11 |
Family
ID=50756874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410045788.8A Active CN103821625B (en) | 2014-02-08 | 2014-02-08 | A kind of engine fuel injection control circuit and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103821625B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243606A (en) * | 2019-06-28 | 2019-09-17 | 潍柴动力股份有限公司 | A kind of control device of fuel gauging unit |
| CN111142502A (en) * | 2019-12-30 | 2020-05-12 | 潍柴动力股份有限公司 | Processing method, device and equipment for ECU detection and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5216994A (en) * | 1992-02-03 | 1993-06-08 | Kokusan Denki Co., Ltd. | Fuel injection system for internal combustion engine |
| JP2009121307A (en) * | 2007-11-14 | 2009-06-04 | Nikki Co Ltd | Fuel injection control method of engine and fuel injection control device for the same |
| CN103016227A (en) * | 2012-12-04 | 2013-04-03 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Electromagnetic valve driving device capable of carrying out online regulation |
| CN103104363A (en) * | 2013-01-25 | 2013-05-15 | 常州易控汽车电子有限公司 | Engine magnetic valve drive circuit and control method thereof |
| CN103180588A (en) * | 2010-11-03 | 2013-06-26 | 罗伯特·博世有限公司 | Method for operating a magnetic switching element |
-
2014
- 2014-02-08 CN CN201410045788.8A patent/CN103821625B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5216994A (en) * | 1992-02-03 | 1993-06-08 | Kokusan Denki Co., Ltd. | Fuel injection system for internal combustion engine |
| JP2009121307A (en) * | 2007-11-14 | 2009-06-04 | Nikki Co Ltd | Fuel injection control method of engine and fuel injection control device for the same |
| CN103180588A (en) * | 2010-11-03 | 2013-06-26 | 罗伯特·博世有限公司 | Method for operating a magnetic switching element |
| CN103016227A (en) * | 2012-12-04 | 2013-04-03 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Electromagnetic valve driving device capable of carrying out online regulation |
| CN103104363A (en) * | 2013-01-25 | 2013-05-15 | 常州易控汽车电子有限公司 | Engine magnetic valve drive circuit and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 郑翔鲲 周德全: "电喷发动机燃油泵电路与喷油器电路控制原理", 《汽车电器》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243606A (en) * | 2019-06-28 | 2019-09-17 | 潍柴动力股份有限公司 | A kind of control device of fuel gauging unit |
| CN110243606B (en) * | 2019-06-28 | 2021-04-16 | 潍柴动力股份有限公司 | Control device of oil quantity metering unit |
| CN111142502A (en) * | 2019-12-30 | 2020-05-12 | 潍柴动力股份有限公司 | Processing method, device and equipment for ECU detection and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103821625B (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105652949B (en) | Voltage regulator with soft start circuit | |
| CN203617899U (en) | Improved soft start apparatus for rapid discharge and constant-current charge | |
| RU2682241C2 (en) | Method for charging starter battery of vehicle | |
| CN104022634B (en) | A kind of storage capacitor formula high and low pressure surge restraint circuit and suppressing method thereof | |
| CN108725205A (en) | The electric vehicle charging control circuit of relay modified overheating protection | |
| CN103529890A (en) | Soft start device and method | |
| CN104377770A (en) | Charge control circuit and method of multiple lithium batteries and general type charger | |
| CN103821625A (en) | Engine fuel injection control circuit and method | |
| CN103701183B (en) | Multi-branch circuit feedback charger circuit and charging method | |
| CN107846063A (en) | A kind of intelligent instrumentation protection system based on farad capacitor | |
| US4910630A (en) | Method and apparatus for energizing an electrical load | |
| CN205283112U (en) | High -voltage direct current system's current -limiting protection circuit | |
| CN205753618U (en) | A kind of power-down protection circuit | |
| CN105449995B (en) | Drive control circuit and drive control method and Switching Power Supply | |
| CN101786423B (en) | Switching machine protecting circuit of vehicle information system | |
| CN103872921A (en) | Constant-current switching power supply and control method thereof | |
| CN109835141A (en) | A kind of power limitation control system of parking heater spark plug | |
| CN204103608U (en) | A kind of capacitor fast charging circuit | |
| CN209402181U (en) | A kind of battery over-discharge protection circuit, communication equipment and battery | |
| CN104317331A (en) | Pre-heating control device and pre-heating control method based on optical MOS relay | |
| CN113054637A (en) | High-voltage discharge protection circuit for energy storage capacitor after shutdown of satellite load power supply | |
| CN104980148B (en) | RC delay circuits and the vehicle with the RC delay circuits | |
| CN210466087U (en) | Strong flash prevention lens switch state self-adaptive control circuit based on microcontroller | |
| CN104767408A (en) | Alternating-current-direct-current conversion switching power source | |
| CN108260265A (en) | A kind of signal lamp adaptive equalization power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |