CN107546795A - Diesel locomotive battery overdischarge protection circuit - Google Patents
Diesel locomotive battery overdischarge protection circuit Download PDFInfo
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- CN107546795A CN107546795A CN201710668894.5A CN201710668894A CN107546795A CN 107546795 A CN107546795 A CN 107546795A CN 201710668894 A CN201710668894 A CN 201710668894A CN 107546795 A CN107546795 A CN 107546795A
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- battery
- protection circuit
- overdischarge protection
- voltage
- battery overdischarge
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Abstract
The invention discloses a kind of diesel locomotive battery overdischarge protection circuit, including MCU voltage detectings, SM1 electrical equipments, battery overdischarge protection circuit；Whether MCU voltage detectings are less than threshold voltage Vf in the magnitude of voltage of detection battery；SM1 electrical equipments include diesel engine starting motor, Control System of Microcomputer, air conditioner ventilation machine, auxiliary signaling system (ATP/AWS/PMPI), power supply, contactor and relay, head lamp and taillight；MCU voltage detectings, SM1 electrical equipments are connected to the MT1/14 of battery overdischarge protection circuit by BIC main contacts; pass through the setting to battery overdischarge protection circuit; efficiently solve the generation of discharged or defective battery situation; battery is set to cut off the electrical equipment outside basic security equipment before overdischarge; ensure that accumulator capacity can start diesel engine enough, and battery is charged.
Description
Technical field
The present invention relates to diesel locomotive battery technology field, and in particular to a kind of diesel locomotive battery over-discharge is protected
Protection circuit.
Background technology
It is a internal combustion engine tailored according to the technical requirements in Hong Kong that my company, which supplies Hong Kong CKD0A type locomotives,
Car.The locomotive is double drivers' cab, inside corridor, using U.S.'s CATERPPILAR companies C32 type high-speed diesel fuels of small in volume
Machine, entrucking power is 830kW, and is assembled with advanced Intellectual computer control system, meets that the subway engineering of port iron is shunt transport
It is required that.
The locomotive main will be responsible for subway line and shunt task, at the same also need at engineering construction scene to provide enough illuminations and
The task of air conditioner ventilation.When need not drawing task at engineering construction scene, if being always maintained at the low idling work of diesel engine
Make, can thus make diesel engine fuel consumption, while also increase the loss of diesel engine and some equipment, make the economy of locomotive
Reduce.If using storage battery power supply always, work long hours and result in the serious power shortage of battery, so as to cause diesel engine without
Method starts.This just needs to carry out over to battery, ensures that it can meet diesel engine starting and battery is carried out
Charging.
It directly with most of storage battery power supply, air-conditioning system is all in diesel oil that illuminator on current domestic locomotive, which is all,
Just devoted oneself to work after auxiliary generator or charger work after machine starts, a small number of locomotives are worked under storage battery power supply, air conditioner electric
The low-voltage variation in source is also this protection to air-conditioning system in itself, and the not overdischarge to battery plays a protective role.
Locomotive under existing conditions, is easy for making if allowing illuminator and air conditioner ventilating system to devote oneself to work for a long time
Into the electric deficiency phenomenon of battery, so as to cause diesel engine not start, other locomotives can only be leaned on to rescue, simultaneously because electric power storage
The frequent power shortage in pond also substantially reduces the service life of battery.
The content of the invention
To solve the defects of above-mentioned prior art is present, the present invention provides a kind of diesel locomotive battery over-discharge protection
Circuit, by the calculating to battery discharging electric current, with reference to the flash-over characteristic of battery in itself, so that it is determined that battery overdischarge
The threshold voltage of protection, and battery overdischarge protection circuit is designed according to threshold voltage, battery is cut off before overdischarge
Electrical equipment outside basic security equipment, ensure that accumulator capacity can start diesel engine enough, and battery is charged.
The technical solution adopted in the present invention is diesel locomotive battery overdischarge protection circuit, including the inspection of MCU voltages
Survey, SM1 electrical equipments, battery overdischarge protection circuit；Whether MCU voltage detectings are less than in the magnitude of voltage of detection battery
Threshold voltage Vf；SM1 electrical equipments include diesel engine starting motor, Control System of Microcomputer, air conditioner ventilation machine, auxiliary signaling system
(ATP/AWS/PMPI), power supply, contactor and relay, head lamp and taillight；MCU voltage detectings, SM1 electrical equipments pass through BIC
Main contact is connected to the MT1/14 of battery overdischarge protection circuit,
It is battery overdischarge protection circuit between MT1/14 and MT/15, battery BATT disconnecting links of connecting respectively at both ends are opened
BIS1 and BIS2 is closed to be followed by MT1/14 and MT/15；
MT1/16 is connected to MT1/14 and MT/15 again to after locomotive illumination and stopping brake equipment are connected between MT1/18；
Charging socket BCR is connected to MT1/14 and MT/15；
Miniature circuit breaker AB40 is with crossing BIC main contacts, BICI indicator lamps are connected and are followed by MT1/14 and MT/15；
Battery isolation contactor BIC1 coil connection control connecting valves BIS contact 1,2 forms branch road L1；
Battery isolation contactor BIC2 coil connection control connecting valves BIS contact 3,4 forms branch road L2；
Branch road L1 is connected miniature circuit breaker AB40 with one end after branch road L2 parallel connections, another to be connected to MT/15；
Auxiliary contact BICI and switch join output ACU1 and connects the latter contact 3 for being connected to and controlling connecting valve BIS, another
It is connected to MT/15.
Described switch connection output ACU1 closure condition is less than threshold voltage Vf for a long time for battery tension.
The beneficial effects of the invention are as follows：By the setting to battery overdischarge protection circuit, electric power storage is efficiently solved
The generation of pond power shortage situation, ensure that accumulator capacity can start diesel engine enough, avoid battery electric discharge for a long time because losing
Electricity and caused by the broken generation of machine, while it also avoid battery because frequent power shortage and to battery in itself caused by damage, it is right
The service life for extending battery plays good effect.
Brief description of the drawings
Fig. 1 is battery discharging curve map.
Fig. 2 is diesel locomotive battery overdischarge protection circuit figure.
Embodiment
Invention is described further in conjunction with accompanying drawing 1 to accompanying drawing 2, battery discharging is determined according to electrical equipment situation
Electric current, with battery discharging electric current situation battery discharging curve, and combine battery discharging curve and determine in remaining battery one
The terminal voltage value of single battery during constant volume, and the threshold voltage Vf using magnitude of voltage corresponding to whole chassis as protection.Store
Battery is provided with overdischarge protection circuit：When diesel locomotive controller detects battery tension less than protection threshold voltage Vf
When, it is delayed after a period of time, battery, which disconnects, to be extinguished, only retain to it to some main power supply for electrical equipment, indicator lamp power-off
It is illuminated and the power supply of stopping brake, and now driver can start diesel engine after seeing indicator lamp and battery is charged.
Determine that battery discharging electric current is about 50A according to Hong Kong CKD0A type locomotive electrical equipment situations, according to electric power storage
The 10 hours discharge curves in pond, in remaining nearly 30% electricity, the terminal voltage of single battery is 1.95V or so, 32 batteries
The terminal voltage of group is 62.4V (threshold voltage Vf), as shown in Figure 1.
Low voltage protection circuit is as shown in Figure 2：MCU parts of arriving in circuit diagram are current detection section；It is to SM1 parts
Diesel engine starting motor, Control System of Microcomputer, air conditioner ventilation machine, auxiliary signaling system, head lamp, taillight, contactor and relay
The electrical equipments such as device；Circuit is the illumination of other locomotives and stopping brake equipment between MT1/18 and MT1/16.Battery was provided with
Spend discharge protection circuit：When diesel locomotive controller detects that battery tension is less than 62V (threshold voltage Vf), it is delayed one section
After time, diesel locomotive controller control connecting valve BIS3, the contact closure at 4 both ends, battery isolation contactor BIC2
Coil obtains electric, and BIC main contacts disconnect, and battery is disconnected to diesel engine starting motor, Control System of Microcomputer, air conditioner ventilation machine, auxiliary
Signal system (ATP/AWS/PMPI), power supply, contactor and relay, head lamp and taillight power supply are helped, is only retained to other illuminations
With the power supply of stopping brake.Battery isolation contactor BIC auxiliary contacts disconnect simultaneously, the BICI indicator lamps power-off on regulator cubicle
Extinguish.In emergency relief in particular cases, BICI disconnecting switch can be disconnected, so as to cancel ACU excessively putting to battery
The protection of electricity.Battery both ends are provided with chopper switch BIS, and overdischarge protection circuit carries out circuit using miniature circuit breaker B40
Protection.
Claims (2)
1. diesel locomotive battery overdischarge protection circuit, it is characterised in that：Including MCU voltage detectings, SM1 electrical equipments,
Battery overdischarge protection circuit；Whether MCU voltage detectings are less than threshold voltage Vf in the magnitude of voltage of detection battery；SM1
Electrical equipment includes diesel engine starting motor, Control System of Microcomputer, air conditioner ventilation machine, auxiliary signaling system (ATP/AWS/
PMPI), power supply, contactor and relay, head lamp and taillight；MCU voltage detectings, SM1 electrical equipments are distinguished by BIC main contacts
The MT1/14 of battery overdischarge protection circuit is connected to,
It is battery overdischarge protection circuit between MT1/14 and MT/15, battery BATT connects at both ends chopper switch respectively
BIS1 and BIS2 is followed by MT1/14 and MT/15；
MT1/16 is connected to MT1/14 and MT/15 again to after locomotive illumination and stopping brake equipment are connected between MT1/18；
Charging socket BCR is connected to MT1/14 and MT/15；
Miniature circuit breaker AB40 is with crossing BIC main contacts, BICI indicator lamps are connected and are followed by MT1/14 and MT/15；
Battery isolation contactor BIC1 coil connection control connecting valves BIS contact 1,2 forms branch road L1；
Battery isolation contactor BIC2 coil connection control connecting valves BIS contact 3,4 forms branch road L2；
Branch road L1 is connected miniature circuit breaker AB40 with one end after branch road L2 parallel connections, another to be connected to MT/15；
Auxiliary contact BICI and switch join output ACU1 and connects the latter contact 3 for being connected to and controlling connecting valve BIS, another termination
To MT/15.
2. diesel locomotive battery overdischarge protection circuit according to claim 1, it is characterised in that：Described switch
Connection output ACU1 closure condition is less than threshold voltage Vf for a long time for battery tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710668894.5A CN107546795B (en) | 2017-08-08 | 2017-08-08 | Over-discharge protection system for storage battery of diesel locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710668894.5A CN107546795B (en) | 2017-08-08 | 2017-08-08 | Over-discharge protection system for storage battery of diesel locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107546795A true CN107546795A (en) | 2018-01-05 |
| CN107546795B CN107546795B (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710668894.5A Active CN107546795B (en) | 2017-08-08 | 2017-08-08 | Over-discharge protection system for storage battery of diesel locomotive |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113949140A (en) * | 2021-11-24 | 2022-01-18 | 中车大连机车车辆有限公司 | Software control method for preventing storage battery from being charged and overvoltage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245360A (en) * | 1999-09-01 | 2000-02-23 | 机械工业部北京机电研究所 | Intelligent protector of accumulators for diesel locomotive |
| CN206057421U (en) * | 2016-08-31 | 2017-03-29 | 山东钢铁股份有限公司 | A kind of industrial and mineral type locomotive storage battery low-voltage warning circuit |
-
2017
- 2017-08-08 CN CN201710668894.5A patent/CN107546795B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245360A (en) * | 1999-09-01 | 2000-02-23 | 机械工业部北京机电研究所 | Intelligent protector of accumulators for diesel locomotive |
| CN206057421U (en) * | 2016-08-31 | 2017-03-29 | 山东钢铁股份有限公司 | A kind of industrial and mineral type locomotive storage battery low-voltage warning circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113949140A (en) * | 2021-11-24 | 2022-01-18 | 中车大连机车车辆有限公司 | Software control method for preventing storage battery from being charged and overvoltage |
| CN113949140B (en) * | 2021-11-24 | 2023-11-10 | 中车大连机车车辆有限公司 | Software control method for preventing storage battery from being charged and overvoltage |
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| Publication number | Publication date |
|---|---|
| CN107546795B (en) | 2020-12-15 |
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