WO2013089512A1 - Véhicule électrique et son procédé de commande - Google Patents

Véhicule électrique et son procédé de commande Download PDF

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Publication number
WO2013089512A1
WO2013089512A1 PCT/KR2012/010954 KR2012010954W WO2013089512A1 WO 2013089512 A1 WO2013089512 A1 WO 2013089512A1 KR 2012010954 W KR2012010954 W KR 2012010954W WO 2013089512 A1 WO2013089512 A1 WO 2013089512A1
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WO
WIPO (PCT)
Prior art keywords
airbag
battery pack
high voltage
battery
control unit
Prior art date
Application number
PCT/KR2012/010954
Other languages
English (en)
Korean (ko)
Inventor
홍준현
Original Assignee
(주)브이이엔에스
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Filing date
Publication date
Application filed by (주)브이이엔에스 filed Critical (주)브이이엔에스
Publication of WO2013089512A1 publication Critical patent/WO2013089512A1/fr

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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
    • B60L3/0007—Measures or means for preventing or attenuating collisions
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • 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
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • 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
    • B60L3/0084—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to control modules
    • 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
    • B60L3/04—Cutting off the power supply under fault conditions
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/14—Preventing excessive discharging
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/15—Preventing overcharging
    • 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
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/10—Driver interactions by alarm
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • 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
    • 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
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the present invention relates to an electric vehicle and a control method thereof, and more particularly, a battery management system receives an airbag operation signal from an airbag control unit and issues a driving command to the power relay unit and the battery pack to cut off the high voltage of the battery pack.
  • An automobile and a control method thereof receives an airbag operation signal from an airbag control unit and issues a driving command to the power relay unit and the battery pack to cut off the high voltage of the battery pack.
  • Electric vehicle is a vehicle that obtains power mainly by driving AC or DC motor by using battery power. It is classified into battery-only electric vehicle and hybrid electric vehicle. Using a motor to drive, recharging when the power is exhausted, the hybrid electric vehicle can run the engine to generate electricity to charge the battery and drive the electric motor using this electricity to move the car.
  • hybrid electric vehicles can be classified into a series and a parallel method, in which the mechanical energy output from the engine is converted into electrical energy through a generator, and the electrical energy is supplied to a battery or a motor so that the vehicle is always driven by a motor. It is a concept of adding an engine and a generator to increase the mileage to an existing electric vehicle, and the parallel method can drive a vehicle with a battery power and drive two vehicles only with an engine (gasoline or diesel). In parallel, depending on the driving conditions, the engine and the motor may drive the vehicle simultaneously.
  • the motor / control technology has also been developed recently, a high power, small size and high efficiency system has been developed.
  • the output and EV power performance acceleration performance, top speed
  • the motor becomes lighter and smaller, which significantly reduces the weight and volume.
  • Such an electric vehicle may have a secondary accident due to a high voltage when an impact is applied to a battery pack to which a high voltage is applied or a shock is applied to a motor control unit to which a high voltage is applied from the battery pack.
  • a serious accident may occur because the high voltage applied to the motor controller from the battery pack may not be blocked.
  • an object of the present invention is to directly transmit the airbag operation signal from the airbag control unit to the battery management system, and the battery management system issues a driving command to the power relay unit and the sub-switch inside the battery pack and controls the high voltage. In providing a method.
  • an electric vehicle comprises a battery pack including a plurality of cells for storing electrical energy and a sub-switch connecting the plurality of cells in series, a sensor unit for detecting a collision of the vehicle, the Receiving the strength of the collision from the sensor unit, and determines whether to operate the airbag, when operating the airbag, the airbag control unit for generating an airbag operation signal, receives the airbag operation signal from the airbag control unit, the sub A battery management system for issuing a driving command to a switch and a power relay unit and a power relay unit for cutting off a high voltage applied from the battery pack to the motor control unit, wherein the sub-switch of the battery pack is connected to the driving command. Accordingly, the high voltage of the battery pack itself is blocked.
  • control method of the electric vehicle comprises the steps of detecting a collision of the vehicle, the airbag controller analyzes the strength of the collision to determine whether to operate the airbag, when operating the airbag, the airbag control unit battery management Transmitting an airbag operation signal to a system; the battery management system includes: driving a sub-switch and power relay unit of a battery pack; and cutting off a high voltage of the battery pack itself and a high voltage applied to a motor control unit; do.
  • the electric vehicle and its control method according to the present invention can block the high voltage of the battery pack itself when the airbag is operating, and prevent the high voltage from being applied to the motor control unit from the battery pack, thereby preventing secondary accidents caused by the high voltage. have.
  • the battery management system directly receives the airbag operation signal from the airbag controller and controls the power relay to prevent high voltage from being applied from the battery pack to the motor controller.
  • FIG. 1 is a view schematically showing the internal configuration of an electric vehicle according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram illustrating a circuit diagram of a high voltage control system when an airbag is operated in an electric vehicle according to an embodiment of the present invention.
  • FIG. 3 is a diagram illustrating a power relay unit and a battery pack control flow by the battery management system according to an exemplary embodiment of the present invention.
  • FIG. 1 is a view schematically showing the internal configuration of an electric vehicle according to an embodiment of the present invention.
  • an electric vehicle includes an airbag controller 110, an airbag 115, a sensor unit 120, a battery pack 140, a battery management system (BMS) 130, It includes a power relay unit (PRA) 150, a motor control unit (MCU) 170, a main control unit (VCM) 160, a motor 180, and an interface unit 190.
  • PRA power relay unit
  • MCU motor control unit
  • VCM main control unit
  • the electric vehicle includes the battery pack 140 as described above, and operates by using the power charged in the battery pack 140 as an operation power source, and receives power from a predetermined charging station or a vehicle charging facility or an external home.
  • the battery pack 140 is charged.
  • the battery pack 140 includes a plurality of battery cells and a sub-switch that connects the plurality of battery cells in series to store high voltage electrical energy. At this time, the electric vehicle controls the charging of the battery pack 140, determines the remaining capacity of the battery pack 140, the need for charging, management to supply the charging current stored in the battery pack 140 to each part of the electric vehicle
  • the battery management system 130 further includes a battery management system (BMS).
  • BMS battery management system
  • the battery management system 130 When the battery management system 130 charges and uses the battery pack 140, the battery management system 130 maintains the voltage difference between cells in the battery pack 140 evenly, thereby controlling the battery pack 140 from being overcharged or overdischarged. 140) to extend the life.
  • the battery management system 130 measures the battery remaining amount and battery voltage of the current battery pack 140 and outputs it to the main controller 160.
  • the electric vehicle includes a sensor unit 120, and detects a signal generated during a vehicle driving or a predetermined operation and inputs the signal to the main controller 160 or the airbag controller 110.
  • the sensor unit 120 includes a plurality of sensors inside and outside the vehicle to input various sensing signals. At this time, the type of sensor may also be different depending on the installation position.
  • the sensor unit 120 includes a wheel sensor that detects wheel speed for calculating a torque value, and a slope sensor that detects a tilt of the vehicle.
  • the sensor unit 120 includes an acceleration sensor capable of measuring the acceleration of the vehicle.
  • the acceleration sensor may detect the collision intensity of the vehicle and transmit it to the airbag controller 110.
  • the airbag controller 110 determines whether the airbag 115 is operated based on the collision intensity received from the acceleration sensor.
  • the airbag operating signal may be transmitted to the airbag 115 and the battery management system 130.
  • the airbag operating signal may be simultaneously transmitted to the airbag 115 and the battery management system 130.
  • the airbag 115 that receives the airbag operation signal from the airbag controller 110 operates the airbag 115.
  • the battery management system 130 receives the airbag operation signal from the airbag control unit 110, to block the high voltage applied to the motor control unit 170 from the battery pack 140 power relay (PRA) power relay assembly (150) and a drive command to the subswitch of the battery pack 140 to block the high voltage of the battery pack 140 itself.
  • PRA power relay
  • the power relay unit 150 includes a plurality of main relays including a precharge relay, a (+) stage main relay, and a ( ⁇ ) stage main relay to switch a high voltage, and are applied from the battery pack 140 including a sensor.
  • the high voltage operating power is applied to or blocked by the motor controller 170.
  • the power relay unit 150 operates a relay by a control command of the main controller 160 or the battery management system 130.
  • the power relay unit 150 may cut off power applied from the battery pack 140 to the motor controller 170 by switching a plurality of relays provided in a predetermined order according to a control command of the battery management system 130. In addition, since the power supplied to the motor 180 is cut off, as the motor 180 stops, the vehicle also stops.
  • the motor controller 170 generates a control signal for driving at least one motor 180 connected to the motor controller 170, and generates and applies a predetermined signal for motor control.
  • the motor controller 170 may control the driving of the motor 180 by controlling the inverter or the converter including an inverter (not shown) and a converter (not shown).
  • the main control unit (Vehicle control module (VCM)) (160) controls the overall according to the driving and operation of the vehicle.
  • the main controller 160 generates and applies a predetermined command to the motor controller 170 so as to perform a set operation corresponding to the input of the interface unit 190 and the sensor unit 120, and controls input and output of data. .
  • the interface unit 190 includes input means for inputting a predetermined signal by a driver's operation, and output means for outputting information to the outside during the current state operation of the electric vehicle.
  • the input means includes operation means for driving such as a steering wheel, an accelerator, a brake.
  • the accelerator outputs acceleration information for torque value calculation
  • the brake outputs braking information for torque value calculation.
  • the input means includes a plurality of switches, buttons, and the like for operating the direction indicator lamp, tail lamp, head lamp, brush, etc. according to the driving of the vehicle.
  • the output means includes a display unit for displaying information, a speaker for outputting music, effect sounds and warning sounds, and various states.
  • FIG. 2 is a schematic diagram illustrating a circuit diagram of a high voltage control system when an airbag is operated in an electric vehicle according to an embodiment of the present invention.
  • the battery pack 140 includes a plurality of battery cells, and the plurality of battery cells are connected in series by the sub-switch 145. Therefore, the battery pack 140 stores the high voltage power by the plurality of battery cells and the sub-switch 145, and applies the high voltage to the motor controller 170 by the power relay unit 150 including the plurality of relays. Can be blocked.
  • the power relay unit 150 includes a positive terminal main relay 152 and a battery pack 140 and a motor control unit 170 installed on a positive power line connecting the battery pack 145 and the motor control unit 170.
  • Precharge relay 151 and precharge relay 151 connected in parallel with the (-) stage main relay 153 and the (+) stage main relay 152 installed in the (-) power line for connecting It may include a resistor connected to the rear end of the).
  • the positive stage main relay 152, the negative stage main relay 153, and the precharge relay 151 electrically connect the battery pack 140 and the motor controller 170 under the control of the battery management system 130. Can be connected or blocked.
  • the motor controller 170 may convert the direct current output from the battery pack 140 into alternating current and transmit the alternating current to the motor 180 to drive the motor 180.
  • the airbag control unit 110 transmits an airbag operation signal to the battery management system 130
  • the battery management system 130 receiving the airbag operation signal issues a driving command to the battery pack 140 and the power relay unit 150. do.
  • the battery pack 140 receiving the driving command opens the sub-switch 145 located in series between the plurality of battery cells, and accordingly, the electrical connection between the plurality of battery cells is cut off, so that the high voltage of the battery pack 140 itself. Will be blocked.
  • the power relay unit 150 receiving the driving command sequentially turns off the plurality of main relays 152 and 153.
  • the (+) stage main relay 152 is turned off to connect the battery pack 140 and the motor controller 170. Can be blocked.
  • the operation order of the plurality of relays 151, 152, 153 is not limited to the above-described order and may be modified.
  • the electrical connection between the battery pack 140 and the motor controller 170 is blocked, thereby preventing the high voltage of the battery pack 140 from being applied to the motor controller 170.
  • FIG. 3 is a diagram illustrating a power relay unit and a battery pack control flow by the battery management system according to an exemplary embodiment of the present invention.
  • the sensor unit 120 detects a collision of a vehicle by using an acceleration sensor (S310).
  • the collision intensity detected by the acceleration sensor is transmitted to the airbag controller 110, and the airbag controller 110 determines whether to operate the airbag 115 with the transmitted collision intensity (S320).
  • the airbag controller 110 may generate an airbag operation signal when the collision intensity is greater than the preset strength, and may not generate the airbag operation signal when the collision intensity is smaller than the preset strength.
  • the airbag control unit 110 When the airbag control unit 110 generates an airbag operation signal, the airbag operation signal is transmitted to the airbag 115 and the battery management system 130 (S330).
  • the airbag 115 receiving the airbag operation signal operates the airbag 115, and the battery management system 130 issues a driving command to the battery pack 140 and the power relay unit 150 (S340).
  • the battery pack 140 receiving the driving command may open the sub-switch 145 to cut off the electrical connection between the plurality of battery cells, and the power relay unit 150 may turn off the plurality of main relays in order, and thus, the battery pack 140. ) And the motor control unit 170 may block the electrical connection.
  • the high voltage may be blocked from being applied to the battery pack 140 itself, and the high voltage may be blocked from being applied to the motor controller 170 (S350).
  • the electric vehicle and the control method according to the present invention detect the collision of the vehicle, when the airbag 115 is operated, by transmitting an airbag operation signal from the airbag control unit to the battery management system 130, and receives the signal
  • the battery management system 130 issues a driving command to the battery pack 140 and the power relay unit 150 to prevent a high voltage from being applied to the battery pack 140 itself and the motor controller 170 to prevent secondary accidents. Can be.
  • the battery management system 130 may issue a power command to the power relay unit 150 separately from the main control unit 160, thereby preventing accidents in double, and electric vehicles. It can enhance the reliability and safety.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

La présente invention porte sur un véhicule électrique et son procédé de commande. Le véhicule électrique selon la présente invention comprend : un bloc-batterie, comprenant une pluralité de cellules pour stocker de l'électricité et un sous-commutateur pour connecter la pluralité de cellules en série ; une unité de capteur pour détecter un accident de véhicule ; une unité de commande de coussin de sécurité gonflable pour recevoir l'intensité de l'accident à partir de l'unité de capteur, déterminer s'il faut ou non actionner un coussin de sécurité gonflable, et générer un signal d'actionnement de coussin de sécurité gonflable quand il est déterminé que le coussin de sécurité gonflable devrait être actionné ; un système de gestion de batterie pour recevoir le signal d'actionnement de coussin de sécurité gonflable à partir de l'unité de commande de coussin de sécurité gonflable et émettre des instructions d'actionnement au sous-commutateur du bloc-batterie et à une unité de relais de puissance ; et ladite unité de relais de puissance pour couper la haute tension qui est appliquée à l'unité de commande de moteur à partir du bloc-batterie en fonction des instructions d'actionnement. Le sous-commutateur du bloc-batterie coupe la haute tension qui est appliquée au bloc-batterie lui-même en fonction des instructions d'actionnement.
PCT/KR2012/010954 2011-12-16 2012-12-14 Véhicule électrique et son procédé de commande WO2013089512A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110136494A KR20130068993A (ko) 2011-12-16 2011-12-16 전기자동차 및 그 제어방법
KR10-2011-0136494 2011-12-16

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WO2013089512A1 true WO2013089512A1 (fr) 2013-06-20

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WO (1) WO2013089512A1 (fr)

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CN106671814A (zh) * 2016-12-29 2017-05-17 力帆实业(集团)股份有限公司 电动汽车动力电池包主动安全防护系统
CN110001420A (zh) * 2017-07-12 2019-07-12 上海重塑能源科技有限公司 一种用于氢燃料电池车的安全控制方法
CN111731103A (zh) * 2020-07-07 2020-10-02 汉腾新能源汽车科技有限公司 一种纯电动汽车的整车下电控制策略
CN114604137A (zh) * 2020-12-03 2022-06-10 江铃汽车股份有限公司 一种汽车碰撞断电保护方法及系统
WO2024087452A1 (fr) * 2022-10-24 2024-05-02 惠州亿纬锂能股份有限公司 Procédé et système de commande d'énergie de batterie

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