CN110182099A - A kind of automobile-used power battery charging control system of electronic logistics and its control method - Google Patents

A kind of automobile-used power battery charging control system of electronic logistics and its control method Download PDF

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Publication number
CN110182099A
CN110182099A CN201910496063.3A CN201910496063A CN110182099A CN 110182099 A CN110182099 A CN 110182099A CN 201910496063 A CN201910496063 A CN 201910496063A CN 110182099 A CN110182099 A CN 110182099A
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CN
China
Prior art keywords
heating
battery
power battery
charging
temperature
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.)
Pending
Application number
CN201910496063.3A
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Chinese (zh)
Inventor
张国斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin New Energy Automobile Research Institute Co Ltd
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Tianjin New Energy Automobile Research Institute Co Ltd
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Priority to CN201910496063.3A priority Critical patent/CN110182099A/en
Publication of CN110182099A publication Critical patent/CN110182099A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

It include battery heating system and battery management system the invention discloses a kind of automobile-used power battery charging control system of electronic logistics and its control method, the control system;The battery heating system includes heating film and power battery;The battery management system includes temperature sensor, controller, total negative contactor, Hall current sensor, also contacts device, heating fuse and total fuse;When work, controller knows the temperature of power battery by reading the data of temperature sensor, when lower than charging allowable temperature, different method for heating and controlling is taken different temperature values, power battery is heated, when temperature reaches charging allowable temperature, switches to normal charge mode.Solve the problems, such as existing electric automobile power battery be mostly without heating design or have heating but heating effect it is bad.

Description

A kind of automobile-used power battery charging control system of electronic logistics and its control method
Technical field
The present invention relates to a kind of electric automobile power battery temperature control technologies, and in particular to a kind of electronic logistics is automobile-used dynamic Power battery charging controller and its control method.
Background technique
Along with the atmosphere pollution and energy crisis got worse, new-energy automobile becomes the hot spot studied both at home and abroad, electricity The research and development of electrical automobile attract wide attention.The charging performance of north cold area pure electric automobile also results in enough simultaneously Pay attention to.How more reasonably to guarantee (0 DEG C or less) of low temperature environment charging, becomes electric car and primarily asked what north of china in winter was run Topic, Fig. 1 show power battery low temperature charging performance parameter.
At this stage electric automobile power battery be mostly without heating design or have heating but heating effect it is bad, this is resulted in Vehicle can not charge normal in cold northern area winter or performance is had a greatly reduced quality, so that electric car is in these regions Promotion and popularization are obstructed.
It is therefore desirable to a kind of temperature of powered cell control system be designed, before the energy for not consuming power battery itself It puts, heat energy guarantees electric automobile power battery filling at low ambient temperatures from charging pile or Vehicular charger Electricity.
Summary of the invention
The purpose of the present invention is to provide a kind of automobile-used power battery charging control system of electronic logistics and its control method, To solve the problems, such as existing electric automobile power battery be mostly without heating design or have heating but heating effect it is bad.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of automobile-used power battery charging control system of electronic logistics, the control system includes battery heating system and electricity Pond management system;The battery heating system includes heating film and power battery;The battery management system includes temperature sensing Device, controller, total negative contactor, Hall current sensor, also contacts device, heating fuse and total fuse;When work, control Device processed knows the temperature of power battery by reading the data of temperature sensor, when lower than charging allowable temperature, to different temperature Angle value takes different method for heating and controlling, heats to power battery, when temperature reaches charging allowable temperature, switches to Normal charge mode.
Preferably, the controller of above-mentioned battery management system controls the closure of total negative contactor, control also contacts device Closure.
Preferably, above-mentioned battery management system obtains the current value in route by Hall current sensor, with desired value It is compared in real time, with Real-time Feedback charging and discharging currents.
Preferably, the temperature sensor of above-mentioned battery management system includes multiple, is separately mounted to each power battery In battery pack, the temperature of power battery is averaged acquisition by multiple sensors.
Preferably, the film that is evenly heated of above-mentioned battery heating system is mounted on outside power battery.
Preferably, the controller of above-mentioned battery management system is communicated with external charger, can send out in real time required current value Give external charger.
Preferably, above-mentioned total fuse rating is 350A.
Preferably, above-mentioned heating fuse rating is 35A.
Preferably, above-mentioned controller is the circuit module using STM32F407 as core chips, and peripheral hardware includes total negative contact Device control interface, also contacts device control interface, external charger communication interface, temperature sensor communication interface, Hall current Sensor communication interfaces and DCDC module, total negative contactor control interface and also contacts device control interface use relay With low-voltage control contactor on-off;The external charger communication interface is CAN2.0 interface;The temperature sensor communication Interface uses IIC communication protocol;The Hall current sensor communication interface uses SPI communication agreement, and the DCDC module is Using LM2596 as the circuit module of core chips.
Preferably, total negative contactor of above-mentioned battery management system is connected with Hall current sensor;The also contacts Device is connected with heating fuse.
A kind of control method of the automobile-used power battery charging control system of electronic logistics, it is characterised in that: to power battery Charging uses following computer heating control strategy:
Scene 1: when battery temperature be less than or equal to -20 DEG C, forbid heating, forbid charging;
Scene 2: when battery temperature is at -20 DEG C to 0 DEG C, heating is opened;The controller of battery management system is according to heating The transmission of film power asks for current value to external charger, heating relay is attracted after 5S, into the heating period;When battery case is minimum When temperature rises to 1 DEG C, total negative relay closure, it is to add that the controller of battery management system, which asks for current value to external charger, The sum of heat demand electric current and charging current, when battery case minimum temperature rises to 5 DEG C, the controller of battery management system is outside It is the sum of demand for heat electric current and charging current that portion's charger, which asks for current value, when battery case minimum temperature rises to 10 DEG C, Heating relay is disconnected, into the normal ladder charging stage.
Scene 3: when heating 4 is small, for battery pack minimum temperature less than 1 DEG C, battery management system sends heating event to vehicle Barrier stops heating and charging, can carry out heating and charging again after trouble shooting;In heating process, the temperature difference >=15 DEG C, electricity Pond management system sends fuser malfunction to vehicle, stops heating and charging, can be heated and be filled again after trouble shooting Electricity.
The present invention has the advantage that
After design of the invention, realizes and the real-time acquisition of temperature of powered cell and detection, real-time control are added Thermal modules carry out temperature control to power battery, have ensured power battery while ensure that the efficient quota charging of power battery The safety of charging, so that the application of power battery has better practicability and reliability.
Detailed description of the invention
Fig. 1 is power battery low temperature charging performance parameter.
Fig. 2 is the circuit signal of a kind of automobile-used power battery charging control system of electronic logistics of the present invention and its control method Figure.
Fig. 3 is the controller electricity of a kind of automobile-used power battery charging control system of electronic logistics of the present invention and its control method Road composition block diagram.
Fig. 4 is the charging temperature control of a kind of automobile-used power battery charging control system of electronic logistics of the present invention and its control method Procedure chart.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention Under the effect of can be generated and the purpose that can reach, it should all still fall in disclosed technology contents and obtain the model that can cover In enclosing.Meanwhile cited such as "upper", "lower", " left side ", the right side in this specification ", the term of " centre ", be merely convenient to chat That states is illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing skill without essence It is held in art, when being also considered as the enforceable scope of the present invention.
Embodiment 1
Referring to fig. 2, the automobile-used power battery charging control system of a kind of electronic logistics, the control system include battery heating System and battery management system;The battery heating system includes heating film and power battery;The battery management system includes Temperature sensor, controller, total negative contactor, Hall current sensor, also contacts device, heating fuse and total fuse; When work, controller knows the temperature of power battery by reading the data of temperature sensor, right when lower than charging allowable temperature Different temperature values takes different method for heating and controlling, heats to power battery, when temperature reaches charging allowable temperature When, switch to normal charge mode.
Preferably, the controller of above-mentioned battery management system controls the closure of total negative contactor, control also contacts device Closure.
Preferably, above-mentioned battery management system obtains the current value in route by Hall current sensor, with desired value It is compared in real time, with Real-time Feedback charging and discharging currents.
Preferably, the temperature sensor of above-mentioned battery management system includes multiple, is separately mounted to each power battery In battery pack, the temperature of power battery is averaged acquisition by multiple sensors.
Preferably, the film that is evenly heated of above-mentioned battery heating system is mounted on outside power battery.
Preferably, the controller of above-mentioned battery management system is communicated with external charger, can send out in real time required current value Give external charger.
Preferably, above-mentioned total fuse rating is 350A.
Preferably, above-mentioned heating fuse rating is 35A.
Referring to Fig. 3, it is preferred that above-mentioned controller is the circuit module using STM32F407 as core chips, and peripheral hardware includes Total negative contactor control interface, also contacts device control interface, external charger communication interface, temperature sensor communication interface, Hall current sensor communication interface and DCDC module, total negative contactor control interface and also contacts device control interface are adopted With relay with low-voltage control contactor on-off;The external charger communication interface is CAN2.0 interface;The temperature passes Sensor communication interface uses IIC communication protocol;The Hall current sensor communication interface uses SPI communication agreement, described DCDC module is the circuit module using LM2596 as core chips.
Preferably, total negative contactor of above-mentioned battery management system is connected with Hall current sensor;The also contacts Device is connected with heating fuse.
Referring to fig. 4, the control method of the automobile-used power battery charging control system of a kind of electronic logistics, it is characterised in that: right Power battery charging uses following computer heating control strategy:
Scene 1: when battery temperature be less than or equal to -20 DEG C, forbid heating, forbid charging;
Scene 2: when battery temperature is at -20 DEG C to 0 DEG C, heating is opened;The controller of battery management system is according to heating The transmission of film power asks for current value to external charger, heating relay is attracted after 5S, into the heating period;When battery case is minimum When temperature rises to 1 DEG C, total negative relay closure, it is to add that the controller of battery management system, which asks for current value to external charger, The sum of heat demand electric current and charging current, when battery case minimum temperature rises to 5 DEG C, the controller of battery management system is outside It is the sum of demand for heat electric current and charging current that portion's charger, which asks for current value, when battery case minimum temperature rises to 10 DEG C, Heating relay is disconnected, into the normal ladder charging stage.
Scene 3: when heating 4 is small, for battery pack minimum temperature less than 1 DEG C, battery management system sends heating event to vehicle Barrier stops heating and charging, can carry out heating and charging again after trouble shooting;In heating process, the temperature difference >=15 DEG C, electricity Pond management system sends fuser malfunction to vehicle, stops heating and charging, can be heated and be filled again after trouble shooting Electricity.
In actual use, total negative contactor of battery management system is used to control power battery and extraneous on-off.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore, These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.

Claims (10)

1. a kind of automobile-used power battery charging control system of electronic logistics, it is characterised in that: the control system includes that battery adds Hot systems and battery management system;The battery heating system includes heating film and power battery;The battery management system packet Include temperature sensor, controller, total negative contactor, Hall current sensor, also contacts device, heating fuse and total insurance Silk;When work, controller knows the temperature of power battery by reading the data of temperature sensor, lower than charging allowable temperature When, different method for heating and controlling is taken different temperature values, power battery is heated, is allowed when temperature reaches charging When temperature, normal charge mode is switched to.
2. a kind of electronic automobile-used power battery charging control system of logistics according to claim 1, it is characterised in that: described The controller of battery management system controls the closure of total negative contactor, controls the closure of also contacts device.
3. a kind of electronic automobile-used power battery charging control system of logistics according to claim 1, it is characterised in that: described Battery management system obtains the current value in route by Hall current sensor, is compared in real time with desired value, with real-time Feed back charging and discharging currents.
4. a kind of electronic automobile-used power battery charging control system of logistics according to claim 1, it is characterised in that: described The temperature sensor of battery management system include it is multiple, be separately mounted in the battery pack of each power battery, power battery Temperature is averaged acquisition by multiple sensors.
5. a kind of electronic automobile-used power battery charging control system of logistics according to claim 1, it is characterised in that: described The film that is evenly heated of battery heating system is mounted on outside power battery.
6. a kind of electronic automobile-used power battery charging control system of logistics according to claim 1, it is characterised in that: described It include multiple switch inside total negative contactor, being closed different switches has different current limits.
7. a kind of electronic automobile-used power battery charging control system of logistics according to claim 1, it is characterised in that: described Total fuse rating is 350A;The heating fuse rating is 35A.
8. a kind of electronic automobile-used power battery charging control system of logistics according to claim 1, it is characterised in that: described Controller be circuit module using STM32F407 as core chips, peripheral hardware includes total negative contactor control interface, also contacts Device control interface, external charger communication interface, temperature sensor communication interface, Hall current sensor communication interface and DCDC Module, total negative contactor control interface and also contacts device control interface use relay logical with low-voltage control contactor It is disconnected;The external charger communication interface is CAN2.0 interface;The temperature sensor communication interface uses IIC communication protocol; The Hall current sensor communication interface uses SPI communication agreement, and the DCDC module is using LM2596 as core chips Circuit module.
9. a kind of electronic automobile-used power battery charging control system of logistics according to claim 1, it is characterised in that: described Total negative contactor of battery management system is connected with Hall current sensor;The also contacts device is connected with heating fuse.
10. a kind of control method of the automobile-used power battery charging control system of electronic logistics, it is characterised in that: filled to power battery Electricity uses following computer heating control strategy:
Scene 1: when battery temperature be less than or equal to -20 DEG C, forbid heating, forbid charging;
Scene 2: when battery temperature is at -20 DEG C to 0 DEG C, heating is opened;The controller of battery management system is according to heating film function Current value is asked in rate transmission, heating relay is attracted after 5S, into the heating period;When battery case minimum temperature rises to 1 DEG C, Total negative relay closure, asking for current value is the sum of demand for heat electric current and charging current, when battery case minimum temperature rises to 5 DEG C when, ask for current value be the sum of demand for heat electric current and charging current, when battery case minimum temperature rises to 10 DEG C, disconnection Relay is heated, into the normal ladder charging stage.
Scene 3: when heating 4 is small, for battery pack minimum temperature less than 1 DEG C, battery management system sends fuser malfunction to vehicle, stops Only heating and charging can carry out heating and charging again after trouble shooting;In heating process, the temperature difference >=15 DEG C, cell tube Reason system sends fuser malfunction to vehicle, stops heating and charging, can carry out heating and charging again after trouble shooting.
CN201910496063.3A 2019-06-10 2019-06-10 A kind of automobile-used power battery charging control system of electronic logistics and its control method Pending CN110182099A (en)

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CN201910496063.3A CN110182099A (en) 2019-06-10 2019-06-10 A kind of automobile-used power battery charging control system of electronic logistics and its control method

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CN201910496063.3A CN110182099A (en) 2019-06-10 2019-06-10 A kind of automobile-used power battery charging control system of electronic logistics and its control method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111532176A (en) * 2020-05-11 2020-08-14 上海元城汽车技术有限公司 Charging heating control method, device, equipment and storage medium
CN111634201A (en) * 2020-05-25 2020-09-08 东风襄阳旅行车有限公司 Electric vehicle quick-charging heating charging method and device using ternary lithium battery
CN111934038A (en) * 2020-07-29 2020-11-13 厦门金龙旅行车有限公司 Battery heating device and heating method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101000972A (en) * 2006-12-28 2007-07-18 奇瑞汽车有限公司 Thermal control device for battery of mixed power vehicle
CN102832425A (en) * 2012-05-04 2012-12-19 奇瑞汽车股份有限公司 Thermal management system and thermal management method of battery pack of electric automobile
CN203503757U (en) * 2013-10-21 2014-03-26 三门峡速达交通节能科技股份有限公司 Battery box heat management system of electric automobile
CN104393369A (en) * 2014-10-28 2015-03-04 江苏大学 System and method for vehicle-used battery thermal management
CN106252788A (en) * 2016-08-24 2016-12-21 合肥国轩高科动力能源有限公司 A kind of lithium battery low-temperature heating method and device thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101000972A (en) * 2006-12-28 2007-07-18 奇瑞汽车有限公司 Thermal control device for battery of mixed power vehicle
CN102832425A (en) * 2012-05-04 2012-12-19 奇瑞汽车股份有限公司 Thermal management system and thermal management method of battery pack of electric automobile
CN203503757U (en) * 2013-10-21 2014-03-26 三门峡速达交通节能科技股份有限公司 Battery box heat management system of electric automobile
CN104393369A (en) * 2014-10-28 2015-03-04 江苏大学 System and method for vehicle-used battery thermal management
CN106252788A (en) * 2016-08-24 2016-12-21 合肥国轩高科动力能源有限公司 A kind of lithium battery low-temperature heating method and device thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111532176A (en) * 2020-05-11 2020-08-14 上海元城汽车技术有限公司 Charging heating control method, device, equipment and storage medium
CN111634201A (en) * 2020-05-25 2020-09-08 东风襄阳旅行车有限公司 Electric vehicle quick-charging heating charging method and device using ternary lithium battery
CN111934038A (en) * 2020-07-29 2020-11-13 厦门金龙旅行车有限公司 Battery heating device and heating method
CN111934038B (en) * 2020-07-29 2021-08-24 厦门金龙旅行车有限公司 Battery heating device and heating method

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Application publication date: 20190830