CN104071100A - Energy management system for high power loads - Google Patents
Energy management system for high power loads Download PDFInfo
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- CN104071100A CN104071100A CN201410350258.4A CN201410350258A CN104071100A CN 104071100 A CN104071100 A CN 104071100A CN 201410350258 A CN201410350258 A CN 201410350258A CN 104071100 A CN104071100 A CN 104071100A
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- 238000007726 management method Methods 0.000 description 26
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- 239000003381 stabilizer Substances 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005279 excitation period Effects 0.000 description 1
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- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses an energy management system for high power loads, which comprises a charge-discharge indicating circuit, a load control module and a generator, wherein the generating output end of the generator is connected with the positive pole of a storage battery; the charge-discharge indicating circuit is connected between the ON gear power supply terminal and the indicating lamp circuit control terminal of the generator; the indicating lamp control terminal provides power for the load control module; the load control module is used for outputting an enabled control signal to a power supply main switch when the generator enters the self-excitation period, so as to enable the power supply main switch to be closed and allow the generator to supply power to the high-power loads through the generating output end. Compared with the energy management system, which uses a storage battery electric quantity sensor for energy management, the energy management system, which judges whether the power is supplied to the high power loads or not by detecting the self-excitation manner of the generator, and is provided the invention, has the advantages of high simplicity and reliability and low cost.
Description
Technical field
The present invention relates to car electrics and electronic technology field, relate in particular to a kind of energy management system of high power load.
Background technology
Along with the continuous progress of car electrics and Eltec, it is more and more that high power load is applied on car load, and traditional extensive powder source management mode more and more can not meet the demand of car load electric weight.At present be by storage battery quantity sensor, to detect the dump energy of storage battery substantially, so that engine electric-controlled unit is by analyzing storage battery charge state (SOC, State of Charge), storage battery functional status (SOF, State of Function) realize the management of energy, utilize storage battery quantity sensor carry out energy management need developing intellectual resource electrical generator, storage battery quantity sensor, as control unit and the corresponding power consumption components of gateway, therefore make this kind of management scheme there is cost high, and the long defect of time-to-market.
Summary of the invention
The object of the embodiment of the present invention is in order to solve existing the problems referred to above of utilizing storage battery quantity sensor to carry out energy management existence, and a kind of simple, reliable and lower-cost high power load energy management system is provided.
To achieve these goals, the technical solution used in the present invention is: a kind of energy management system of high power load, comprise and discharge and recharge indicating circuit, load control module and electrical generator, the generating mouth of described electrical generator is connected with the positive pole of storage battery, described discharging and recharging between the indicator lamp control end that indicating circuit is connected in ON shelves terminals for power supplies and electrical generator, described load control module is powered by described indicator lamp control end, described load control module is used for during described electrical generator enters the self-excitation period to power supply main supply switch output enable control signal, so that described power supply main supply switch is closed, allow described electrical generator to power to high power load through described generating mouth.
Preferably, described load control module, for when the voltage that described indicator lamp control end detected is greater than setting voltage, judges that described electrical generator enters the self-excitation period.
Preferably, described energy management system also comprises the voltage collection circuit being connected between described indicator lamp control end and bonding, and the check point of described voltage collection circuit has the check point voltage of definite proportionate relationship to described load control module output and the voltage of described indicator lamp control end.
Preferably, described voltage collection circuit comprises the first divider resistance and the second divider resistance being connected in series between described indicator lamp control end and described bonding, wherein, one end of described the second divider resistance is connected with described bonding, and the other end is as described check point.
Preferably, between the check point of described voltage collection circuit and bonding, be connected with filter circuit.
Preferably, between described indicator lamp control end and bonding, be connected with filter circuit.
Preferably, when described load control module does not also reach the stable voltage of described indicator lamp control end for the voltage described indicator lamp control end being detected in the setting-up time in load control module starts yet, to warning device output alarm signal, so that warning device reminds chaufeur to cut out high power load.
Preferably, described energy management system also comprises constant current source, described constant current source and described in discharge and recharge indicating circuit and be connected in parallel between described ON shelves terminals for power supplies and described indicator lamp control end.
Preferably, described constant current source comprises current regulator diode and the resistance being connected in series between described ON shelves terminals for power supplies and described indicator lamp control end.
Preferably, described energy management system also comprises mu balanced circuit, and described indicator lamp control end is powered to described load control module through described mu balanced circuit.
Therefore beneficial effect of the present invention is: the energy management system of high power load of the present invention is designed to be powered to load control module by the indicator lamp control end of driving engine, can guarantee that high power load only can work in the situation that electrical generator generates electricity; In addition, the present invention by make load control module only driving engine enter the self-excitation period just allow electrical generator through generating mouth to the mode of high power load power supply guarantee that driving engine can normally start and after normal startup for battery charge and power to high power load.As can be seen here, energy management system of the present invention is without developing intellectual resource electrical generator, storage battery quantity sensor, as control unit and the corresponding power consumption components of gateway, therefore, the self-excitation mode by detection driving engine of the present invention judges whether that energy management system from energy management to the energy management system of high power load power supply that relatively utilize storage battery quantity sensor to carry out has simply, reliable and lower-cost advantage.
Accompanying drawing explanation
Fig. 1 is according to the structure principle chart of a kind of embodiment of the energy management system of high power load of the present invention.
Description of reference numerals:
1-discharges and recharges indicating circuit; 2-electrical generator;
3-constant current source; U1-load control module;
U2-voltage stabilizer; D2-discharges and recharges indicator lamp;
SW-ignition lock; P3-ON shelves terminals for power supplies;
B-storage battery; The B+-mouth that generates electricity;
L-indicator lamp control end; S-Battery voltage sense terminal;
21-magnetic field winding; 22-electronic regulator;
D1, D3-diode; D5-current regulator diode;
R1, R2, R5, R6, R10-resistance; R3-the first divider resistance;
R4-the second divider resistance; C1～C4-electric capacity.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
The present invention proposes a kind of energy management method of high power load, with reference to Fig. 1, the method comprises the steps:
Step S1: detect electrical generator and whether start generating, whether this for example can have Voltage-output to realize by detecting the indicator lamp control end L of driving engine, and indicator lamp control end L has Voltage-output to show that electrical generator starts generating.
Step S2: start after generating at electrical generator, judge whether electrical generator enters the self-excitation period, at this, because the principle of work of electrical generator is: ignition key be threaded to ON shelves make ignition lock SW connect storage battery B (ON shelves terminals for power supplies P3 is connected with the positive pole of storage battery through ignition lock SW with ON shelves terminals for power supplies P3, it is specially at ignition key has electric terminal in ON shelves and START shelves) between connection time, storage battery B through the indicator lamp control end L of electrical generator 2 to magnetic field winding 21 excitations (being the separate excitation period), electrical generator 2 starts generating, the indicator lamp D2 that discharges and recharges that discharges and recharges indicating circuit 1 being now connected between ON shelves terminals for power supplies P3 and indicator lamp control end L lights, the electronic regulator 22 of electrical generator 2 detects the voltage of storage battery B by Battery voltage sense terminal S afterwards, along with improving constantly of generator speed, when the voltage of storage battery B is less than generator voltage, the excitation mode that electronic regulator 22 is controlled electrical generator 2 becomes self-excitation (encouraging oneself the period), now discharge and recharge indicator lamp D2 because of equal the extinguishing of current potential at two ends, electrical generator 2 starts the charging for storage battery B, and be high power load power supply, and now the voltage of indicator lamp control end L will be greater than certain definite magnitude of voltage, automobile current generator for usual employing, when being greater than 9.5V, the voltage of indicator lamp control end L shows that electrical generator 2 has entered the self-excitation period.Therefore, judge whether electrical generator enters the signal of self-excitation period and can come from electronic regulator 22, also can be from the detection to the voltage of indicator lamp control end L.
Step S3: during electrical generator 2 enters the self-excitation period to power supply main supply switch output enable control signal, so that power supply main supply switch is closed, allow electrical generator 2 to power to high power load through generating mouth B+, this power supply main supply switch is connected in generating mouth B+ on the power supply buses of all high power load power supplies, at this, on each load circuit for the independent power supply of each high power load of drawing through this power supply buses, also should be connected with the load switch of whether working for controlling corresponding high power load, this load switch is controlled by chaufeur.
Above-mentionedly by detecting electrical generator, whether enter the self-excitation period and control electrical generator whether to the energy management method of high power load power supply without developing intellectual resource electrical generator, storage battery quantity sensor, as control unit and the corresponding power consumption components of gateway, therefore, there is simple, reliable and lower-cost advantage.
Based on above-mentioned energy management method, as shown in Figure 1, the energy management system of high power load of the present invention comprises and discharges and recharges indicating circuit 1, load control module U1 and electrical generator 2, the generating mouth B+ of electrical generator 2 is connected with the positive pole of storage battery B, discharge and recharge between the indicator lamp control end L that indicating circuit 1 is connected in ON shelves terminals for power supplies P3 and electrical generator 2, in order to guarantee high power load, only when generating electricity, electrical generator can work, therefore, in energy management system of the present invention, load control module U1 is powered by indicator lamp control end L, load control module U1 is used for during electrical generator 2 enters the self-excitation period to power supply main supply switch (not shown) output enable control signal, so that power supply main supply switch is closed, allow electrical generator 2 to power to high power load through generating mouth B+, this high power load mainly comprises car refrigerator, voltage inverter, cold and hot hypanthium etc.
In order to realize by load control module U1 and to judge whether electrical generator 2 enters the scheme of self-excitation period with the simplest mode and minimum cost, this load control module U1 is for when the voltage that indicator lamp control end L detected is greater than setting voltage, judge that described electrical generator enters the self-excitation period, this setting voltage is for example the 9.5V of above-mentioned explanation.
Because the voltage range that load control module U1 can detect is conventionally limited, therefore, as shown in Figure 1, this energy management system also can comprise the voltage collection circuit being connected between indicator lamp control end L and bonding, the check point of this voltage collection circuit has the check point voltage of definite proportionate relationship to load control module U1 (being specially the DETE port to load control module U1) output and the voltage of indicator lamp control end L, load control module U1 can be when check point voltage be greater than the equivalent voltage corresponding with above-mentioned setting voltage like this, think that the voltage that indicator lamp control end L detected has been greater than setting voltage.
As shown in Figure 1, this voltage collection circuit for example can comprise the first divider resistance R3 and the second divider resistance R4 being connected in series between indicator lamp control end L and bonding, wherein, one end of the second divider resistance R4 is connected with bonding, and the other end has the check point voltage of definite proportionate relationship to load control module U1 output and the voltage of indicator lamp control end L as above-mentioned check point.
In order to increase the reliability of check point output detections point voltage, can between the check point of voltage collection circuit and bonding, be connected filter circuit, this filter circuit is for example the capacitor C 2 being connected between check point and bonding.
In order to increase the reliability of indicator lamp control end L output voltage, can between indicator lamp control end L and bonding, be connected filter circuit, this filter circuit is for example the capacitor C 1 being connected between indicator lamp control end L and bonding.
Owing to entering the self-excitation period at electrical generator 2, it is storage battery B charging and after high power load power supply, by the speedup of the voltage of impact generating mouth B+, correspondingly cause the voltage of indicator lamp control end L also to need the time of growing just can reach final stable voltage (being generally 12.5V), if crossing slowly, this speedup will cause the reduction of automotive performance, generation for fear of this kind of problem, also for the voltage indicator lamp control end L being detected, in load control module U1 starts, in the setting-up time of (being that indicator lamp control end L starts to load control module U1 output services voltage), (this setting-up time is for example 5 minutes to 15 minutes to load control module U1 of the present invention, conventionally may be selected to be is 10 minutes) while not reaching yet the stable voltage of indicator lamp control end L, to warning device output alarm signal, so that warning device reminds chaufeur to cut out high power load by disconnecting consumers switch, this setting-up time can be set according to the performance of electrical generator 2 and user's operating needs.
Above-mentioned load control module U1 relates generally to comparison, timing, and according to comparison, timing result, export the function of corresponding control signal, this is easy to utilize software to realize in controller, also can realize by hardware, for example, comparison wherein and can realizing by comparator according to the function of comparative result output corresponding control signal, timing wherein and can realizing by time meter according to the function of timing result output corresponding control signal.
Because the present invention adopts indicator lamp control end L, be load control module U1 and peripheral circuit power supply thereof, therefore may drag down the loop current of indicator lamp control end L, and then make on the one hand storage battery B reduce to the exciting current of magnetic field winding 21 excitations through indicator lamp control end L, can cause on the other hand discharging and recharging indicator lamp D2 trace, in order to address this problem, energy management system of the present invention also arranges constant current source 3, this constant current source 3 and discharge and recharge indicating circuit 1 and be connected in parallel between ON shelves terminals for power supplies P3 and indicator lamp control end L, to compensate to the exciting current of magnetic field winding 21 excitations through indicator lamp control end L by 3 pairs of constant current sources.At this, exciter current of generator conventionally at 100mA between 500mA, storage battery B inputs to indicator lamp control end L exciting current through discharging and recharging indicating circuit 1 is generally 110mA, therefore, the exciting current that storage battery inputs to indicator lamp control end L through constant current source 3 should meet and is more than or equal to 100mA, and be less than or equal to 390mA, to guarantee that any road exciting current all can guarantee generator excitation, guarantee that two-way exciting current sum is within the scope of exciting current simultaneously, in an embodiment of the present invention, the exciting current that storage battery inputs to indicator lamp control end L through constant current source 3 is 100mA.
Those skilled in the art can select appropriate constant current source 3 according to above-mentioned requirements, and for example, this constant current source 3 can comprise current regulator diode D5 and the resistance R 10 being connected in series between ON shelves terminals for power supplies P3 and indicator lamp control end L.
In order to provide required operating voltage through indicator lamp control end L to load control module U1, as shown in Figure 1, energy management system of the present invention also comprises mu balanced circuit, so that indicator lamp control end L powers to load control module U1 through this mu balanced circuit, specifically the mouth of mu balanced circuit is connected with the operating voltage input port B AT of load control module U1.This mu balanced circuit can utilize voltage stabilizer U2 to realize, if load control module U1 needs the operating voltage of 5V, select the voltage stabilizer U2 of stable output 5V voltage, particular circuit configurations is that indicator lamp control end L is connected with the voltage input end Vin of voltage stabilizer U2 through input filtering circuit (consisting of with capacitor C 3 resistance R 5), and the voltage output end Vout of voltage stabilizer U2 is the operating voltage input port B AT output services voltage to load control module U1 through mouth filter circuit (consisting of resistance R 6 and capacitor C 4).
The indicating circuit 1 that discharges and recharges of the present invention can adopt light-emitting diode as shown in Figure 1 as discharging and recharging indicator lamp D2, in order to mate the operating characteristic of light-emitting diode, this discharges and recharges indicating circuit 1 and can comprise the diode D1, the resistance R 1 that are connected in turn between ON shelves terminals for power supplies P3 and indicator lamp control end L, discharge and recharge indicator lamp D2 and diode D3, and with resistance R 1 with discharge and recharge indicator lamp D2 resistance R in parallel 2, wherein, the resistance of resistance R 1 and resistance R 2 is 1500 Ω.
Embodiment shown in above foundation is graphic describes structure of the present invention, feature and action effect in detail; the foregoing is only preferred embodiment of the present invention; but the present invention does not limit practical range with shown in drawing; every change of doing according to conception of the present invention; or be revised as the equivalent embodiment of equivalent variations; when not exceeding yet specification sheets and illustrating contain spiritual, all should be in protection scope of the present invention.
Claims (10)
1. the energy management system of a high power load, comprise and discharge and recharge indicating circuit, load control module and electrical generator, the generating mouth of described electrical generator is connected with the positive pole of storage battery, described discharging and recharging between the indicator lamp control end that indicating circuit is connected in ON shelves terminals for power supplies and electrical generator, it is characterized in that, described load control module is powered by described indicator lamp control end, described load control module is used for during described electrical generator enters the self-excitation period to power supply main supply switch output enable control signal, so that described power supply main supply switch is closed, allow described electrical generator to power to high power load through described generating mouth.
2. energy management system according to claim 1, is characterized in that, described load control module, for when the voltage that described indicator lamp control end detected is greater than setting voltage, judges that described electrical generator enters the self-excitation period.
3. energy management system according to claim 2, it is characterized in that, described energy management system also comprises the voltage collection circuit being connected between described indicator lamp control end and bonding, and the check point of described voltage collection circuit has the check point voltage of definite proportionate relationship to described load control module output and the voltage of described indicator lamp control end.
4. energy management system according to claim 3, it is characterized in that, described voltage collection circuit comprises the first divider resistance and the second divider resistance being connected in series between described indicator lamp control end and described bonding, wherein, one end of described the second divider resistance is connected with described bonding, and the other end is as described check point.
5. energy management system according to claim 3, is characterized in that, between the check point of described voltage collection circuit and bonding, is connected with filter circuit.
6. energy management system according to claim 1, is characterized in that, between described indicator lamp control end and bonding, is connected with filter circuit.
7. according to the energy management system described in any one in claim 1 to 6, it is characterized in that, when described load control module does not also reach the stable voltage of described indicator lamp control end for the voltage described indicator lamp control end being detected in the setting-up time in load control module starts yet, to warning device output alarm signal, so that warning device reminds chaufeur to cut out high power load.
8. according to the energy management system described in any one in claim 1 to 6, it is characterized in that, described energy management system also comprises constant current source, described constant current source and described in discharge and recharge indicating circuit and be connected in parallel between described ON shelves terminals for power supplies and described indicator lamp control end.
9. energy management system according to claim 8, is characterized in that, described constant current source comprises current regulator diode and the resistance being connected in series between described ON shelves terminals for power supplies and described indicator lamp control end.
10. according to the energy management system described in any one in claim 1 to 6, it is characterized in that, described energy management system also comprises mu balanced circuit, and described indicator lamp control end is powered to described load control module through described mu balanced circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350258.4A CN104071100B (en) | 2014-07-22 | 2014-07-22 | Energy management system for high power loads |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350258.4A CN104071100B (en) | 2014-07-22 | 2014-07-22 | Energy management system for high power loads |
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| CN104071100A true CN104071100A (en) | 2014-10-01 |
| CN104071100B CN104071100B (en) | 2017-02-15 |
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| CN201410350258.4A Expired - Fee Related CN104071100B (en) | 2014-07-22 | 2014-07-22 | Energy management system for high power loads |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683416A (en) * | 2018-07-25 | 2018-10-19 | 上海艾为电子技术股份有限公司 | A kind of load switch control circuit |
| CN110221208A (en) * | 2019-07-09 | 2019-09-10 | 昆山三一动力有限公司 | Generator performance detection system and detection method based on automotive engine test bench |
| CN112406848A (en) * | 2020-11-13 | 2021-02-26 | 东风越野车有限公司 | Output torque control method for automobile high-power generator |
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| US20080201055A1 (en) * | 2007-02-15 | 2008-08-21 | Denso Corporation | Vehicle-use battery monitor apparatus |
| CN201457109U (en) * | 2009-07-13 | 2010-05-12 | 叶天福 | Electric motor car |
| CN201594191U (en) * | 2009-12-31 | 2010-09-29 | 河南天海科技有限公司 | Functional logic testing platform for BCM |
| JP4615821B2 (en) * | 2000-06-06 | 2011-01-19 | 株式会社ミツバ | Lamp lighting and battery charge control device |
| CN103441723A (en) * | 2013-08-07 | 2013-12-11 | 江苏云意电气股份有限公司 | Voltage regulator controlled through computer |
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2014
- 2014-07-22 CN CN201410350258.4A patent/CN104071100B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4615821B2 (en) * | 2000-06-06 | 2011-01-19 | 株式会社ミツバ | Lamp lighting and battery charge control device |
| US20080201055A1 (en) * | 2007-02-15 | 2008-08-21 | Denso Corporation | Vehicle-use battery monitor apparatus |
| CN201457109U (en) * | 2009-07-13 | 2010-05-12 | 叶天福 | Electric motor car |
| CN201594191U (en) * | 2009-12-31 | 2010-09-29 | 河南天海科技有限公司 | Functional logic testing platform for BCM |
| CN103441723A (en) * | 2013-08-07 | 2013-12-11 | 江苏云意电气股份有限公司 | Voltage regulator controlled through computer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683416A (en) * | 2018-07-25 | 2018-10-19 | 上海艾为电子技术股份有限公司 | A kind of load switch control circuit |
| CN108683416B (en) * | 2018-07-25 | 2023-09-15 | 上海艾为电子技术股份有限公司 | Load switch control circuit |
| CN110221208A (en) * | 2019-07-09 | 2019-09-10 | 昆山三一动力有限公司 | Generator performance detection system and detection method based on automotive engine test bench |
| CN110221208B (en) * | 2019-07-09 | 2023-12-12 | 湖南道依茨动力有限公司 | Generator performance detection system and method based on engine test bench |
| CN112406848A (en) * | 2020-11-13 | 2021-02-26 | 东风越野车有限公司 | Output torque control method for automobile high-power generator |
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| Publication number | Publication date |
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| CN104071100B (en) | 2017-02-15 |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: ANHUI JIANGHUAI AUTOMOBILE Co.,Ltd. |
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Granted publication date: 20170215 |