KR20120012662A - Electric vehicle and method in an emergency - Google Patents
Electric vehicle and method in an emergency Download PDFInfo
- Publication number
- KR20120012662A KR20120012662A KR1020100074756A KR20100074756A KR20120012662A KR 20120012662 A KR20120012662 A KR 20120012662A KR 1020100074756 A KR1020100074756 A KR 1020100074756A KR 20100074756 A KR20100074756 A KR 20100074756A KR 20120012662 A KR20120012662 A KR 20120012662A
- Authority
- KR
- South Korea
- Prior art keywords
- control unit
- motor
- sub
- controller
- vehicle
- Prior art date
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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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
-
- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
-
- 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
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
-
- Y02T10/7005—
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention relates to an electric vehicle and an emergency control method thereof, comprising a plurality of control units and monitoring each other among a plurality of control units, and when an abnormality occurs, the vehicle is continuously driven by emergency control through a control unit that operates normally, or is generated. By stopping the vehicle in accordance with the abnormal phenomenon, to ensure the stable driving of the vehicle and to prevent the accident that can be caused by the vehicle in advance to ensure the driver's safety.
Description
The present invention relates to an electric vehicle and an emergency control method thereof, and more particularly to an electric vehicle and an emergency control method for emergency driving or stopping a vehicle by detecting an abnormality of a controller for controlling the overall operation of the vehicle.
Electric vehicles are being actively researched in that they are the most likely alternatives to solve future automobile pollution and energy problems.
Electric vehicles (EVs) are mainly vehicles powered by AC or DC motors using battery power, and are classified into battery-only electric vehicles and hybrid electric vehicles. Using a motor to drive and 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.
In addition, 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 of an existing electric vehicle, and the parallel method allows the vehicle to be driven by battery power and uses two power sources to drive the vehicle only by the engine (gasoline or diesel). Depending on the driving conditions and the parallel method, the engine and the motor may drive the vehicle at the same time.
In addition, the motor / control technology has also been developed recently, a high power, small size and high efficiency system has been developed. As DC motor is converted into AC motor, the power and acceleration performance (acceleration performance, maximum speed) of the EV are greatly improved, reaching a level comparable to gasoline cars. As the motor rotates with high output, the motor becomes light and compact, and the payload and volume are greatly reduced.
Such an electric vehicle includes a central control unit for controlling its function, but when there is an error in the control unit itself or an error in communication with the control unit, the vehicle does not operate normally due to an error in the control unit.
Accordingly, when an abnormality occurs during driving, it is impossible to process an input signal, and thus, the driving of the vehicle becomes difficult, which may lead to an accident.
SUMMARY OF THE INVENTION An object of the present invention is to provide an electric vehicle and an emergency control method having a plurality of controllers for controlling a vehicle to determine whether an abnormality occurs through mutual monitoring to ensure emergency driving or to stop a vehicle to ensure stable driving. .
Electric vehicle according to the present invention for achieving the above object is a sensor unit for measuring the state of the vehicle; A motor control unit for controlling the motor to drive the vehicle; A power relay assembly (PRA) for supplying battery power to the motor control unit; A main controller for operating and controlling the vehicle in response to data input from the sensor unit and the interface unit; And a sub controller configured to monitor an operation state from the main controller and to emergency control a vehicle in place of the main controller when the main controller is abnormal, wherein the main controller and the sub controller are operated when the motor controller is abnormal. By controlling the power supply to the motor control unit is cut off from the battery to make an emergency stop.
In addition, the emergency control method of the electric vehicle according to the present invention comprises the steps of generating the control information for the vehicle control according to the data input from the at least one sensor and the main control unit and the sub-control unit, respectively; Determining whether the motor controller is abnormal by applying the control information generated by the main controller and the sub controller to the motor controller, respectively; And stopping the power supplied to the motor control unit through the PRA control when the motor control unit is abnormal.
The electric vehicle and its emergency control method according to the present invention are provided with a plurality of control units to monitor each other and compare the data generated even if all the control units are operating normally, so that the emergency operation or emergency stop of the vehicle By controlling it, it guarantees stable driving and prevents accidents that may occur beforehand.
1 is a view schematically showing the internal configuration of an electric vehicle according to an embodiment of the present invention.
2 is a diagram illustrating a control flow according to vehicle control and emergency driving through mutual monitoring in an electric vehicle according to the present invention.
3 is a flowchart referred to for describing a vehicle control method according to a control mismatch.
4 is a flowchart referred to for explaining the emergency control method in the event of an error according to the present invention.
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 is a view schematically showing the internal configuration of an electric vehicle according to an embodiment of the present invention.
Referring to the drawings, the electric vehicle according to an embodiment of the present invention, the
The electric vehicle includes a
The
At this time, the electric vehicle controls the charging of the
The BMS maintains an even voltage difference between cells in the battery when charging and using the battery, thereby extending the life of the battery by controlling the battery from overcharging or overdischarging.
The power relay assembly (PRA) 170 includes a plurality of relays for switching a high voltage, a sensor, and a high voltage operating power applied from the
The PRA 160 switches the plurality of relays provided in a predetermined order according to a control command of the
The PRA 160 may cut off the battery power supply to the motor control unit (MCU). Since the power supplied to the motor is cut off, the vehicle also stops as the motor stops.
The
The
The
At this time, the output means includes a display unit for displaying information, a speaker for outputting music, sound effects and warning sounds, and various states. The input means includes a plurality of switches, buttons, etc. for operating a direction indicator light, tail lamp, head lamp, brush, etc. according to the driving of the vehicle.
In addition, the
The
The
The
The
The
The
The
At this time, the
The
In addition, the
On the other hand, the
The
The
When the emergency control is started, the
The
In addition, the
In addition, the
At this time, the
The
At this time, the
Meanwhile, the
If it is determined that the
At this time, the
Accordingly, when the control of the
2 is a diagram illustrating a control flow according to vehicle control and emergency driving through mutual monitoring in an electric vehicle according to the present invention.
As described above, the
As shown in FIG. 2, the
The
In addition, the
Accordingly, the
In addition, the
When the operation stop command is input or the torque information received from the
On the other hand, the
That is, when any one of the
On the other hand, although both the
3 is a flow chart referenced to explain the emergency control method for the motor controller error according to an embodiment of the present invention.
Referring to FIG. 3, while driving an electric vehicle (S310), the
The
The
The
The
The
The
As the relay of the
Therefore, when the
4 is a flowchart referred to for explaining the emergency control method in the event of an error according to the present invention.
Referring to FIG. 4, while driving an electric vehicle (S450), as described above, the
The
In addition, the
In addition, the
At this time, the
The
Meanwhile, when the control information of the
The
Accordingly, the vehicle stops (S520). At this time, the
At this time, even when the
When the operation stop command is input from any one of the
Meanwhile, when control information applied from the
When there is an error in the main controller 110 (S530), the
At this time, the
The
At this time, the emergency operation by the
On the other hand, if the
The
The
On the other hand, although the control information is not normally input to the
Accordingly, the electric vehicle and the emergency control method according to the present invention periodically check the state of the plurality of control units, and the vehicle is emergency operated by the control unit that normally operates for any one abnormality.
In addition, the present invention can prepare for a safety accident by emergency operation or emergency stop according to the abnormal state.
While the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.
110: main controller 120: sub controller
130: sensor unit 140: interface unit
150: motor control unit 160: PRA
170: motor 180: battery
Claims (11)
A motor control unit for controlling the motor to drive the vehicle;
A power relay assembly (PRA) for supplying battery power to the motor control unit;
A main controller for operating and controlling the vehicle in response to data input from the sensor unit and the interface unit; And
A sub-control unit for monitoring an operation state from the main control unit and emergency controlling a vehicle in place of the main control unit when the main control unit is abnormal;
The main control unit and the sub-control unit for controlling the PRA when the motor control unit abnormal operation to shut off the power applied to the motor control unit from the battery to make an emergency stop.
The PRA switches the relay provided in response to a cut-off signal input from the main control unit or the sub-control unit to cut off the power supplied to the motor control unit.
The main control unit and the sub-control unit respectively transmits and compares the generated control information, and if the control information is different, it is determined that it is out of control and applies an operation stop command to the motor control unit to make the vehicle emergency stop. car.
And the motor controller stops the motor when the operation stop command is input from the main controller or the sub-control unit to emergencyly stop the vehicle.
And the motor controller determines that at least one of the main controller and the sub-control unit malfunctions when the control information input from the main controller and the sub-control unit is different, so that the motor is stopped.
When the control information is not input from any one of the main control unit and the sub-control unit, the motor control unit determines that the control unit does not operate, and inputs a signal for an abnormal operation to the control unit that operates normally. car.
Determining whether the motor controller is abnormal by applying the control information generated by the main controller and the sub controller to the motor controller, respectively; And
And stopping the power supplied to the motor control unit through the PRA control when the motor control unit malfunctions.
The relay included in the PRA is turned off in response to a cut-off signal input to the PRA from at least one of the main controller and the sub-control unit, and power supplied from the battery to the remote controller is cut off. Emergency control method for an electric vehicle, characterized in that the vehicle emergency stop.
When the motor control unit is normal, the main control unit and the sub-control unit transmit mutual control information to compare the received control information with the generated control information, and if the control information is different, to apply an operation stop command to the motor control unit. Emergency control method of the electric vehicle further comprising a step.
And controlling the motor to decrease the speed of the vehicle in response to the operation stop command, and stopping the operation of the motor to emergency stop the vehicle.
If the motor control unit is normal, the motor control unit compares the control information of the main control unit and the control information of the sub-control unit to determine whether the match, if the control information is different, the electric vehicle further comprising the control Emergency control method.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100074756A KR20120012662A (en) | 2010-08-02 | 2010-08-02 | Electric vehicle and method in an emergency |
PCT/KR2011/005036 WO2012005552A2 (en) | 2010-07-09 | 2011-07-08 | Electric vehicle and method for controlling emergency thereof |
CN201180043380.1A CN103108770B (en) | 2010-07-09 | 2011-07-08 | Electronlmobil and emergency control method thereof |
US13/809,145 US8977416B2 (en) | 2010-07-09 | 2011-07-08 | Electric vehicle and method for controlling emergency thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100074756A KR20120012662A (en) | 2010-08-02 | 2010-08-02 | Electric vehicle and method in an emergency |
Publications (1)
Publication Number | Publication Date |
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KR20120012662A true KR20120012662A (en) | 2012-02-10 |
Family
ID=45836488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020100074756A KR20120012662A (en) | 2010-07-09 | 2010-08-02 | Electric vehicle and method in an emergency |
Country Status (1)
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KR (1) | KR20120012662A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101405196B1 (en) * | 2012-12-18 | 2014-06-10 | 현대자동차 주식회사 | Emergency control system for hybrid electric vehicle and method thereof |
CN104903139A (en) * | 2012-07-28 | 2015-09-09 | 大众汽车有限公司 | Method for deactivating a high voltage system of a motor vehicle |
US10266056B2 (en) | 2015-12-10 | 2019-04-23 | Lg Chem, Ltd. | Battery access system and method |
KR20200051807A (en) * | 2017-10-06 | 2020-05-13 | 폭스바겐 악티엔 게젤샤프트 | Automotive brake system and method for operating the brake system |
WO2021221220A1 (en) * | 2020-04-28 | 2021-11-04 | 에너테크인터내셔널 주식회사 | Battery control apparatus and method therefor |
RU2792313C1 (en) * | 2020-04-28 | 2023-03-21 | Энертек Интернэшнл, Инк. | Battery control device and method |
-
2010
- 2010-08-02 KR KR1020100074756A patent/KR20120012662A/en not_active Application Discontinuation
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104903139A (en) * | 2012-07-28 | 2015-09-09 | 大众汽车有限公司 | Method for deactivating a high voltage system of a motor vehicle |
EP2879897B1 (en) * | 2012-07-28 | 2020-08-19 | Volkswagen Aktiengesellschaft | Method for deactivating a high voltage system of a motor vehicle |
KR101405196B1 (en) * | 2012-12-18 | 2014-06-10 | 현대자동차 주식회사 | Emergency control system for hybrid electric vehicle and method thereof |
US10266056B2 (en) | 2015-12-10 | 2019-04-23 | Lg Chem, Ltd. | Battery access system and method |
KR20200051807A (en) * | 2017-10-06 | 2020-05-13 | 폭스바겐 악티엔 게젤샤프트 | Automotive brake system and method for operating the brake system |
WO2021221220A1 (en) * | 2020-04-28 | 2021-11-04 | 에너테크인터내셔널 주식회사 | Battery control apparatus and method therefor |
RU2792313C1 (en) * | 2020-04-28 | 2023-03-21 | Энертек Интернэшнл, Инк. | Battery control device and method |
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