CN107901775A - Start method after electric automobile low tension battery power shortage - Google Patents
Start method after electric automobile low tension battery power shortage Download PDFInfo
- Publication number
- CN107901775A CN107901775A CN201711050904.5A CN201711050904A CN107901775A CN 107901775 A CN107901775 A CN 107901775A CN 201711050904 A CN201711050904 A CN 201711050904A CN 107901775 A CN107901775 A CN 107901775A
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- CN
- China
- Prior art keywords
- management system
- battery management
- battery
- low tension
- power shortage
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses start control method after a kind of electric car low tension battery power shortage, after method is low tension battery power shortage, 3.7 volts of voltages are raised to 12 volts of rocker switch closures by boost module, battery management system powers on, it is waken up, battery management system self-test passes through, whether high-voltage interlocking state is effective, if high pressure conditions are not imitated, then reporting fault, if high-voltage interlocking state is effective, then enter next step, battery management system control backlight interval is dodged under three, battery management system is attracted main negative relay, wake up DC/DC, battery management system detection low-tension supply voltage whether 13 volts of ＞, if then enter next step, if not then reporting fault, the backlight interval of battery management system control is dodged under four, key powers on, start automobile, high pressure powers on flow and terminates.It is cumbersome that the present invention can solve operating process existing in the prior art, and there are the problem of security risk.
Description
Technical field
It is especially a kind of to be used for startup after low tension battery power shortage the present invention relates to electric automobile manufacturing technology field
Control method.
Background technology
The electric control theory of existing electric automobile is mostly entire car controller（Abbreviation VCU）And battery management system
（Abbreviation BMS）Low tension battery is all connect as often electricity（Fig. 5）, after low tension battery power shortage, VCU can not work, and also just can not
The work of the main negative relay of control, after needing external 12 volts of storage batterys to provide power supply to VCU at this time, VCU could start electric automobile, its
Process is cumbersome and inconvenient, and in processing procedure, operating personnel are needed close to high-tension circuit device, and the person to operating personnel causes
Security risk.
The content of the invention
The object of the present invention is to provide control method is started after a kind of electric car low tension battery power shortage, it can solve existing
Have that technical operating procedure is cumbersome, and there are the problem of security risk.
To solve the above-mentioned problems, the technical solution adopted by the present invention is：Opened after this electric car low tension battery power shortage
Flowing control method, realizes, its rate-determining steps is using starter after low tension battery power shortage；
（1）, after low tension battery power shortage, 3.7 volts of voltages are raised to 12 volts of rocker switch and closed by boost module；
（2）, battery management system power on, be waken up,
（3）, the battery management system self-test is by the way that whether battery pack state normal；
（4）, if the battery pack state normally if enter next step；If not lower normal, the reporting fault of the battery pack state,
Backlight interval on battery management system control rocker switch is dodged under two；
（5）, high-voltage interlocking state it is whether effective, if the high-voltage interlocking state is effective, into next step, if described
High-voltage interlocking state is not imitated, then reporting fault, and the backlight interval on the battery management system control rocker switch dodges three
Under；
（6）, the battery management system be attracted main negative relay, wake up DC/DC modules；
（7）, battery management system detection low-tension supply voltage whether 13 volts of ＞, if then entering next step, if not
Then reporting fault, the battery management system control the backlight interval on the rocker switch to dodge under four；
（8）, the battery management system control the backlight on the rocker switch to be always on；
（9）, key power on, start automobile, high pressure powers on flow and terminate.
In above-mentioned technical proposal, more specifically scheme can also be：The high pressure electrifying device includes the cell tube
Reason system and DC/DC modules, the battery management system by the first diode, rocker switch, power shortage power interface female end, lose
Electric power interface male end and boost module obtain power supply from+3.7 volt batteries and are waken up, while the battery management system being waken up
The signal of the wake-up is fed back to the DC/DC modules by system, by the DC/DC data bits, the DC/DC modules output one
A high voltage, goes control vehicle launch, the battery management system to export a signal after being waken up and goes to control institute by key
Main negative relay is stated, while the battery management system exports a signal to the backlight on the wrap board rocker switch
The backlight is sent corresponding signal, the two or two pole is equipped between the battery management system and the low tension battery
Pipe, the output voltage negative terminal mouth of the DC/DC modules and+13.8 volt ports are connected to the positive and negative of the low tension battery
End.
By adopting the above-described technical solution, compared with prior art, the present invention have an advantageous effect in that：Due to this hair
It is bright without VCU high voltage startup flows, whole high voltage startup process is by BMS management and control, and after low tension battery power shortage, BMS is by 3.7 volts
Battery core is waken up by boost module, and BMS goes the main negative relay of control to be attracted, so as to start vehicle, so without external 12 volts electricity
Bottle, charges, whole start-up course is quick and convenient, and does not have security risk to entire car controller.
Brief description of the drawings
Fig. 1 is the flow diagram of the present invention.
Fig. 2 is the vehicle terminated line principle schematic of the present invention.
Fig. 3 is the vehicle low pressure connection principle schematic diagram of the present invention.
Fig. 4 is the principle topological diagram of the present embodiment.
Fig. 5 is the principle topological diagram of the prior art.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：
Start control method after electric car low tension battery power shortage shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, lost using low tension battery
Starter is realized after electricity, and realized using starter after low tension battery power shortage, its rate-determining steps is；
（1）, after 3 power shortage of low tension battery, 3.7 volts of voltages are raised to 12 volts by boost module 6 closes rocker switch SA；
（2）, battery management system 1 power on, be waken up,
（3）1 self-test of battery management system is by the way that whether 7 state of battery pack is normal；
（4）, if 7 state of battery pack normally if enter next step；If not lower normal, the reporting fault of 7 state of battery pack, cell tube
LD has a rest under sudden strain of a muscle two between reason system 1 controls the backlight on rocker switch SA；
（5）, high-voltage interlocking state it is whether effective, if high-voltage interlocking state is effective, into next step, if high-voltage interlocking
State is not imitated, then reporting fault, and battery management system 1 controls the backlight LD intervals on rocker switch SA to dodge under three；
（6）, battery management system 1 be attracted main negative relay KA, wake up DC/DC modules 2；
（7）, battery management system 1 detect low-tension supply voltage whether 13 volts of ＞, if then entering next step, if not on then
Failure is reported, battery management system 1 controls the backlight LD intervals on rocker switch SA to dodge under four；
（8）, battery management system 1 control the backlight LD on rocker switch SA to be always on；
（9）, key power on, start automobile, high pressure powers on flow and terminate.
High pressure electrifying device includes battery management system 1 and DC/DC modules 2, and battery management system 1 passes through the first diode
D1, rocker switch SA, power shortage power interface female end 4, power shortage power interface male end 5 and boost module 6 are obtained from+3.7 volt battery packs 7
Power supply is taken to be waken up, the battery management system 1 being waken up closes main negative relay KA, while the battery management system being waken up
Wake-up signal is fed back to DC/DC modules 2 by 1, and DC/DC modules 2 are waken up.DC/DC modules 2 export a high voltage, pass through key
Spoon control vehicle launch, while battery management system 1 exports a signal makes backlight to the backlight LD on rocker switch SA
LD sends corresponding signal, and the second diode D2, the DC/DC is equipped between 1 and 1 low tension battery 3 of battery management system
The output voltage negative terminal mouth of module 2 and+13.8 volt ports are connected to the positive and negative terminal of low tension battery 3.
The effect of two diodes is to prevent the low tension battery after power shortage from taking electricity from 3.7 volts of battery packs 7, eliminates 3.7 volts
Battery pack 7 overloads risk.
Claims (2)
1. start control method after a kind of electric car low tension battery power shortage, it is characterised in that：After low tension battery power shortage
Starter realizes that its rate-determining steps is；
（1）, after low tension battery power shortage, 3.7 volts of voltages are raised to 12 volts by boost module, rocker switch closure；
（2）, battery management system power on, be waken up,
（3）, the battery management system self-test is by the way that whether battery pack state normal；
（4）, if the battery pack state normally if enter next step；If not lower normal, the reporting fault of the battery pack state,
Backlight interval on battery management system control rocker switch is dodged under two；
（5）, high-voltage interlocking state it is whether effective, if the high-voltage interlocking state is effective, into next step, if described
High-voltage interlocking state is not imitated, then reporting fault, and the backlight interval on the battery management system control rocker switch dodges three
Under；
（6）, the battery management system be attracted main negative relay, wake up DC/DC；
（7）, battery management system detection low-tension supply voltage whether 13 volts of ＞, if then entering next step, if not
Then reporting fault, the battery management system control the backlight interval on the rocker switch to dodge under four；
（8）, the battery management system control the backlight on the rocker switch to be always on；
（9）, key power on, start automobile, high pressure powers on flow and terminate.
2. start control method after electric car low tension battery power shortage according to claim 1, it is characterised in that：It is described low
Starter includes the battery management system and DC/DC modules after pressure discharged or defective battery, and the battery management system passes through the
One diode, rocker switch, power shortage power interface female end, power shortage power interface male end and boost module are obtained from+3.7 volt battery packs
Power supply is taken to be waken up, the master is born relay and closed by the battery management system being waken up, while the electricity being waken up
The wake-up signal is fed back to the DC/DC modules and DC/DC data bits, the DC/DC modules is defeated by pond management system
Go out a high voltage, go control vehicle launch, the battery management system to export a signal after being waken up by the key
Go to control the master to bear relay, while the battery management system exports a signal to the back of the body on the rocker switch
Light lamp makes the backlight send corresponding signal, and second is equipped between the battery management system and the low tension battery
Diode, the output voltage negative terminal mouth of the DC/DC modules and+13.8 volt ports are being connected to the low tension battery just
Negative terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711050904.5A CN107901775A (en) | 2017-10-31 | 2017-10-31 | Start method after electric automobile low tension battery power shortage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711050904.5A CN107901775A (en) | 2017-10-31 | 2017-10-31 | Start method after electric automobile low tension battery power shortage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107901775A true CN107901775A (en) | 2018-04-13 |
Family
ID=61843081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711050904.5A Pending CN107901775A (en) | 2017-10-31 | 2017-10-31 | Start method after electric automobile low tension battery power shortage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107901775A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808547A (en) * | 2019-04-04 | 2019-05-28 | 安徽卓越电气有限公司 | A kind of low-power consumption power accumulator igniting electrifying control circuit and control method |
| CN111216556A (en) * | 2020-02-20 | 2020-06-02 | 新石器慧通（北京）科技有限公司 | Low-voltage power storage unit charging control method and system and unmanned vehicle |
| CN111638466A (en) * | 2020-05-25 | 2020-09-08 | 中合动力（北京）新能源科技有限公司 | Method for identifying whether connection between detachable battery pack and finished vehicle is firm after replacement |
| CN112072740A (en) * | 2020-09-03 | 2020-12-11 | 安徽鸿创新能源动力有限公司 | Undervoltage starting circuit of low-voltage storage battery of electric automobile and control method of undervoltage starting circuit |
| CN112092626A (en) * | 2020-07-31 | 2020-12-18 | 东风商用车有限公司 | Remote monitoring protection method and system for low-voltage storage battery of electric vehicle |
| CN112937304A (en) * | 2021-03-09 | 2021-06-11 | 东风柳州汽车有限公司 | Electric motor car low-voltage storage battery insufficient voltage's starting system |
| CN113381498A (en) * | 2021-06-30 | 2021-09-10 | 奇瑞商用车（安徽）有限公司 | Power supply system and method of monitoring device of power battery of electric automobile |
| CN114194319A (en) * | 2021-12-30 | 2022-03-18 | 广东高标电子科技有限公司 | Electric vehicle starting device and electric vehicle |
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| CN106379188A (en) * | 2016-09-30 | 2017-02-08 | 华南理工大学 | Energy management system for power battery of electric automobile and safety protection method |
| CN106427581A (en) * | 2016-08-30 | 2017-02-22 | 东风柳州汽车有限公司 | Charging control method for low-voltage accumulator of electric automobile |
| CN206432772U (en) * | 2016-11-01 | 2017-08-22 | 成都雅骏新能源汽车科技股份有限公司 | A kind of electric vehicle low tension battery power shortage activation system |
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Patent Citations (3)
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| CN106427581A (en) * | 2016-08-30 | 2017-02-22 | 东风柳州汽车有限公司 | Charging control method for low-voltage accumulator of electric automobile |
| CN106379188A (en) * | 2016-09-30 | 2017-02-08 | 华南理工大学 | Energy management system for power battery of electric automobile and safety protection method |
| CN206432772U (en) * | 2016-11-01 | 2017-08-22 | 成都雅骏新能源汽车科技股份有限公司 | A kind of electric vehicle low tension battery power shortage activation system |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808547A (en) * | 2019-04-04 | 2019-05-28 | 安徽卓越电气有限公司 | A kind of low-power consumption power accumulator igniting electrifying control circuit and control method |
| CN109808547B (en) * | 2019-04-04 | 2022-02-08 | 安徽卓越电气有限公司 | Low-power-consumption power storage battery ignition power-on control circuit and control method |
| CN111216556A (en) * | 2020-02-20 | 2020-06-02 | 新石器慧通（北京）科技有限公司 | Low-voltage power storage unit charging control method and system and unmanned vehicle |
| CN111638466A (en) * | 2020-05-25 | 2020-09-08 | 中合动力（北京）新能源科技有限公司 | Method for identifying whether connection between detachable battery pack and finished vehicle is firm after replacement |
| CN111638466B (en) * | 2020-05-25 | 2024-03-29 | 中合动力（北京）新能源科技有限公司 | Method for identifying whether detachable battery pack is firmly connected with whole vehicle after replacement |
| CN112092626A (en) * | 2020-07-31 | 2020-12-18 | 东风商用车有限公司 | Remote monitoring protection method and system for low-voltage storage battery of electric vehicle |
| CN112072740A (en) * | 2020-09-03 | 2020-12-11 | 安徽鸿创新能源动力有限公司 | Undervoltage starting circuit of low-voltage storage battery of electric automobile and control method of undervoltage starting circuit |
| CN112072740B (en) * | 2020-09-03 | 2023-05-02 | 安徽鸿创新能源动力有限公司 | Under-voltage starting circuit of low-voltage storage battery of electric automobile and control method thereof |
| CN112937304B (en) * | 2021-03-09 | 2022-09-13 | 东风柳州汽车有限公司 | Electric motor car low-voltage storage battery insufficient voltage's starting system |
| CN112937304A (en) * | 2021-03-09 | 2021-06-11 | 东风柳州汽车有限公司 | Electric motor car low-voltage storage battery insufficient voltage's starting system |
| CN113381498A (en) * | 2021-06-30 | 2021-09-10 | 奇瑞商用车（安徽）有限公司 | Power supply system and method of monitoring device of power battery of electric automobile |
| CN113381498B (en) * | 2021-06-30 | 2024-02-06 | 奇瑞商用车（安徽）有限公司 | Power supply system and method of electric automobile power battery monitoring device |
| CN114194319A (en) * | 2021-12-30 | 2022-03-18 | 广东高标电子科技有限公司 | Electric vehicle starting device and electric vehicle |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180413 |