US20180112586A1 - Cooling system of a vehicle and a method of controlling the cooling system - Google Patents

Cooling system of a vehicle and a method of controlling the cooling system Download PDF

Info

Publication number
US20180112586A1
US20180112586A1 US15/370,793 US201615370793A US2018112586A1 US 20180112586 A1 US20180112586 A1 US 20180112586A1 US 201615370793 A US201615370793 A US 201615370793A US 2018112586 A1 US2018112586 A1 US 2018112586A1
Authority
US
United States
Prior art keywords
temperature
controller
sensor
communication
cooling fan
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.)
Abandoned
Application number
US15/370,793
Other languages
English (en)
Inventor
Mun Soon KWON
Kwang Ki Kim
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.)
Hyundai Motor Co
Original Assignee
Hyundai Motor Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hyundai Motor Co filed Critical Hyundai Motor Co
Assigned to HYUNDAI MOTOR COMPANY reassignment HYUNDAI MOTOR COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIM, KWANG KI, KWON, MUN SOON
Publication of US20180112586A1 publication Critical patent/US20180112586A1/en
Priority to US16/657,549 priority Critical patent/US11220951B2/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
    • F01P7/12—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers by thermostatic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/08—Air inlets for cooling; Shutters or blinds therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/08—Air inlets for cooling; Shutters or blinds therefor
    • B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/16—Indicating devices; Other safety devices concerning coolant temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/026—Thermostatic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/048—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using electrical drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3248—Cooling devices information from a variable is obtained related to pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/04—Pump-driving arrangements
    • F01P2005/046—Pump-driving arrangements with electrical pump drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/13—Ambient temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/32—Engine outcoming fluid temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2031/00—Fail safe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00—Applications
    • F01P2050/22—Motor-cars
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

Definitions

  • the present disclosure relates to a cooling system of a vehicle and a method of controlling the same, and more particularly, to control of a cooling fan and an active air flap of an engine.
  • a vehicle includes a plurality of heat sources such as an engine and a motor and, in this regard, a temperature of a heat source needs to be maintained and managed at an appropriate level.
  • the vehicle includes a cooling system including a plurality of cooling devices.
  • a water-cooled engine for circulating cooling water and dissipating heat
  • a vehicle includes a cooling fan to cool a radiator required in a cooling device of a water-cooled engine, and cooling air from the cooling fan directly and indirectly affects cooling of almost all components in an engine room.
  • the cooling air may cool the radiator, cool a condenser of an air conditioner, cool a motor of a hybrid vehicle, and partially cool air of an engine.
  • an active air flap installed at a front portion of a vehicle for controlling an amount of air introduced into an engine room controls the amount of air introduced into the cooling fan.
  • the present disclosure has been made in view of the above problems, and it is an object of the present disclosure to provide a cooling system of a vehicle and a method of controlling the same, for performing close cooperative-control of a cooling fan and an active air flap irrespective of other hardware components of a vehicle so as to maximize cooling performance of the vehicle and also embodying sufficient cooling performance of the vehicle when communication of the vehicle is abnormal or failure occurs in a sensor related to a cooling system, thereby enhancing the reliability of the vehicle cooling system.
  • a cooling system of a vehicle including an integrated controller for controlling a cooling fan and an active air flap, the cooling fan connected to the integrated controller through a single data line, and the active air flap connected to the integrated controller through a single data line, wherein the integrated controller is configured to receive signals of temperatures of cooling water and ambient air via controller area network (CAN) communication using two data lines.
  • CAN controller area network
  • the cooling fan may include a cooling fan controller connected to the integrated controller through the single data line, and the cooling fan controller may include a first temperature sensor for measuring ambient temperature.
  • the active air flap may include an active air flap (AAF) controller connected to the integrated controller through the single data line, and the AAF controller may include a second temperature sensor for measuring ambient temperature.
  • AAF active air flap
  • An engine controller that receives a signal of a cooling water sensor may be configured to transmit information on temperature of cooling water to the integrated controller via CAN communication, and a full automatic temperature controller (FATC) that receives signals of an ambient air sensor and an air conditioner coolant pressure sensor may be configured to transmit signals of ambient air and air conditioner coolant pressure to the integrated controller via CAN communication.
  • FATC full automatic temperature controller
  • the above and other objects can be accomplished by the provision of a method of controlling the aforementioned cooling system, the method including CAN checking whether CAN communication is abnormal by the integrated controller after the vehicle is turned on and control of the cooling fan and the active air flap is initiated.
  • the method upon determining that CAN communication is abnormal, the method includes single-communication checking whether communication with the cooling fan controller and the AAF controller is abnormal by the integrated controller.
  • the method upon determining that communication is abnormal, includes performing a first fail-safe operation of communicating with the cooling fan controller and the AAF controller and controlling the cooling fan and the active air flap based on signals of the first temperature sensor and the second temperature sensor, by the integrated controller.
  • the method may further include, as a result of the single-communication checking, upon determining that communication is abnormal, performing a second fail-safe operation.
  • the cooling fan controller may turn off the cooling fan at a temperature less than a predetermined lower limit temperature, control the cooling fan with maximum output at a temperature equal to or greater than a predetermined upper limit temperature, and maintain control output of the cooling fan as output set prior to determination that communication is abnormal in the single-communication checking at a temperature between the lower limit temperature and the upper limit temperature, based on a signal of the first temperature sensor.
  • the AAF controller may close the active air flap at a temperature less than a predetermined lower limit temperature, open the active air flap to a maximum degree at a temperature equal to or greater than a predetermined upper limit temperature, and maintain an opening degree of the active air flap in a state set prior to determination that communication is abnormal in the single-communication checking at a temperature between the lower limit temperature and the upper limit temperature, based on a signal of the second temperature sensor.
  • the above and other objects can be accomplished by the provision of a method of controlling the aforementioned cooling system, the method including sensor-output checking whether outputs of the ambient air sensor or the air conditioner coolant pressure sensor are abnormal while the vehicle is turned on and an air conditioner is turned on, by the integrated controller.
  • the method includes two-sensor determining whether both the outputs of the ambient air sensor and the air conditioner coolant pressure sensor are abnormal.
  • the method includes performing a third fail-safe operation in which the integrated controller controls the cooling fan with maximum output and controls the active air flap to be opened to a maximum degree.
  • the method may further include, as a result of the two-sensor determining, upon determining that only one of the two sensors is abnormal, estimating an output value of an abnormal sensor based on an output value of the other normal sensor and performing a fourth fail-safe operation using the estimated value to control the cooling fan or the active air flap, by the integrated controller.
  • the integrated controller may estimate an output value of the other abnormal sensor and perform the fourth fail-safe operation.
  • FIG. 1 is a diagram illustrating a structure of a cooling system of a vehicle according to an example
  • FIG. 2 is a block diagram of an example of a cooling fan controller included in a cooling fan illustrated in FIG. 1 ;
  • FIG. 3 is a block diagram of an example of an active air flap (AAF) controller included in an active air flap illustrated in FIG. 1 ;
  • AAF active air flap
  • FIG. 4 is a flowchart illustrating a method of controlling a cooling system of a vehicle according to an embodiment
  • FIG. 5 is a flowchart illustrating a method of controlling a cooling system of a vehicle according to another embodiment
  • FIG. 6 is a graph showing normal output feature of an ambient temperature sensor according to an example
  • FIG. 7 is a graph showing normal output feature of an air conditioner coolant pressure sensor according to an example.
  • FIG. 8 is a graph for explanation of a compensated range for a fourth fail-safe operation according to an example.
  • a cooling system of a vehicle may include an integrated controller 5 for controlling a cooling fan 1 and an active air flap 3 .
  • the cooling fan 1 is connected to the integrated controller 5 through a single data line
  • the active air flap 3 is connected to the integrated controller 5 through a single data line.
  • the single data line refers to a local interconnect network (LIN) communication line or a pulse width modulation (PWM) line and, thus, is used to collectively indicate communication elements including an electric line for control as one conductive line.
  • LIN local interconnect network
  • PWM pulse width modulation
  • a cooling fan controller 1 - 1 of FIG. 2 is illustrated as connected to the integrated controller 5 via a PWM method and an AAF controller 3 - 1 of FIG. 3 is illustrated as connected to the integrated controller 5 via LIN communication, but the LIN communication method and the PWM method may be used interchangeably.
  • the integrated controller 5 may be configured to receive signals of temperatures of cooling water and ambient air, and a refrigerant pressure of an air conditioner through controller area network (CAN) communication using two data lines.
  • CAN controller area network
  • an engine management system for receiving a signal of a cooling water temperature sensor 7 may be configured to transmit information on a temperature of cooling water to the integrated controller 5 via CAN communication.
  • a full automatic temperature controller for receiving signals of an ambient air sensor AMB and an air conditioner coolant pressure sensor APT may be configured to transmit signals of ambient air and air conditioner coolant pressure to the integrated controller 5 via CAN communication.
  • the EMS may be replaced with a motor control unit (MCU), a vehicle control unit (VCU), or the like. In this case, each of the MCU and the VCU may be configured to receive a signal of the cooling water temperature sensor 7 .
  • the cooling system may be configured to maintain a structure of the integrated controller 5 for controlling the cooling fan 1 and the active air flap 3 without being changed even if a controller for receiving a signal of the cooling water temperature sensor 7 is an EMS or is replaced by a motor controller, a vehicle controller, or the like. Therefore, the cooling system according to the present disclosure may be easily applied to various vehicle platforms and cooperative control of the cooling fan 1 and the active air flap 3 may be structurally enabled in the same controller.
  • the cooling system may be configured in such a way that the integrated controller 5 is capable of performing CAN communication only between the EMS and the FATC and performing LIN or PWM communication with the cooling fan controller 1 - 1 and the AAF controller 3 - 1 . Therefore, the number of controllers associated with CAN communication of a vehicle may be reduced compared with the conventional case so as to prevent communication delay and failure of CAN communication and cost taken to embody a communication system is relatively inexpensive so as to relatively reduce manufacturing costs of vehicles. That is, manufacturing costs of a vehicle communication system may be reduced while the safety and reliability of the system are enhanced.
  • the cooling fan 1 may include the cooling fan controller 1 - 1 connected to the integrated controller 5 through the single data line and the cooling fan controller 1 - 1 may include a first temperature sensor 9 for measuring ambient temperature.
  • the active air flap 3 may include the AAF controller 3 - 1 connected to the integrated controller 5 through the single data line and the AAF controller 3 - 1 may include a second temperature sensor 11 for measuring ambient temperature.
  • the aforementioned cooling system may stepwise embody a fail-safe function using the first temperature sensor 9 and the second temperature sensor 11 when failure occurs in a communication system, thereby further enhancing the reliability of a cooling device, as described below.
  • a method of controlling a cooling system of a vehicle may include CAN determining (S 10 ) whether CAN communication is abnormal by the integrated controller 5 after the vehicle is turned on and control of the cooling fan 1 and the active air flap 3 is initiated.
  • the method may include single-communication checking (S 20 ) whether communication with the cooling fan controller 1 - 1 and the AAF controller 3 - 1 is abnormal, by the integrated controller 5 .
  • the method may include performing a first fail-safe operation (S 30 ) of communicating with the cooling fan controller 1 - 1 and the AAF controller 3 - 1 and controlling the cooling fan and the active air flap based on signals of the first temperature sensor 9 and the second temperature sensor 11 , by the integrated controller 5 .
  • the integrated controller 5 may apply a control signal to the cooling fan controller 1 - 1 and the AAF controller 3 - 1 via LIN communication or PWM communication based on signals of the first temperature sensor 9 and the second temperature sensor 11 so as to perform the first fail-safe operation (S 30 ) of controlling the cooling fan 1 and the active air flap 3 and to continuously provide smooth and appropriate cooling performance.
  • a second fail-safe operation (S 40 ) may be performed. Additionally, in the second fail-safe operation (S 40 ), the cooling fan controller 1 - 1 may turn off the cooling fan 1 at a temperature less than a predetermined lower limit temperature, control the cooling fan 1 with maximum output at a temperature equal to or greater than a predetermined upper limit temperature, and maintain control output of the cooling fan 1 as output set prior to determination that communication is abnormal in the single-communication checking (S 20 ) at a temperature between the lower limit temperature and the upper limit temperature, based on a signal of the first temperature sensor 9 .
  • the AAF controller 3 - 1 may close the active air flap 3 at a temperature less than a predetermined lower limit temperature, open the active air flap 3 to a maximum degree at a temperature equal to or greater than a predetermined upper limit temperature, and maintain an opening degree of the active air flap 3 in a state set prior to determination that communication is abnormal in the single-communication checking (S 20 ) at a temperature between the lower limit temperature and the upper limit temperature, based on a signal of the second temperature sensor 11 .
  • the cooling fan controller 1 - 1 or the AAF controller 3 - 1 is not capable of receiving control information of the integrated controller 5 any longer. Therefore, cooling may not be determined to be required at a temperature less than the lower limit temperature, cooling may be determined to be seriously required at a temperature equal to or greater than the upper limit temperature, and a current cooling degree may be determined to be at an appropriate level at a temperature between the lower limit temperature and the upper limit temperature, based on measured values of the first temperature sensor 9 and the second temperature sensor 11 as a self-temperature sensor. Additionally, the cooling fan 1 and the active air flap 3 may be controlled according to the result. Therefore, cooling performance that is not almost insufficient may be provided even if the performance is not optimized according to cooling requirements of a vehicle.
  • the lower limit temperature and the upper limit temperature may be designed and determined according to experimentation and interpretations according to the aforementioned technological objectives.
  • the lower limit temperature may be set to 70° C. and the upper limit temperature may be set to 110° C., as illustrated in FIG. 4 .
  • the method of controlling a cooling system of a vehicle may include sensor-output checking (S 110 ) whether outputs of the ambient air sensor AMB or the air conditioner coolant pressure sensor APT are abnormal while the vehicle is turned on and an air conditioner is turned on, by the integrated controller 5 .
  • the method may include two-sensor determining (S 120 ) whether both the outputs of the ambient air sensor AMB and the air conditioner coolant pressure sensor APT are abnormal.
  • the method may include performing a third fail-safe operation (S 130 ) in which the integrated controller 5 controls the cooling fan 1 with maximum output and controls the active air flap 3 to be opened to a maximum degree.
  • the integrated controller 5 when the integrated controller 5 is configured to receive a signal of the ambient air sensor AMB and a signal of the air conditioner coolant pressure sensor APT and to calculate a control amount for controlling the cooling fan 1 and the active air flap 3 , upon determining that both of the ambient air sensor AMB and the air conditioner coolant pressure sensor APT are abnormal, the integrated controller 5 may perform the third fail-safe operation (S 130 ) to control the cooling fan 1 with maximum output and to open the active air flap 3 to a maximum degree, thereby achieving sufficient cooling performance.
  • S 130 the third fail-safe operation
  • the integrated controller 5 may estimate an output value of an abnormal sensor based on an output value of the other normal sensor and perform a fourth fail-safe operation (S 140 ) using the estimated value to control the cooling fan 1 or the active air flap 3 .
  • the integrated controller 5 may estimate an output value of the other abnormal sensor and perform the fourth fail-safe operation (S 140 ).
  • an output of the abnormal ambient air sensor AMB is output as a voltage according to a temperature and, as illustrated in FIG. 7 , an output value of the normal air conditioner coolant pressure sensor APT is output as a voltage according to pressure
  • an intermediate portion of a whole output range of each sensor may be set as a compensated range, which is represented as shown in FIG. 8 .
  • a signal of the other normal sensor may be multiplied by a predetermined correction coefficient and considered as a signal of the abnormal sensor and the outputs may be used to calculate a control amount of the cooling fan 1 and the active air flap 3 , thereby further enhancing the safety and reliability of the cooling system.
  • the correction coefficient may be set to 1 as an extreme example.
  • the output value of the ambient air sensor AMB may be replaced with the output value of the air conditioner coolant pressure sensor APT without change.
  • the compensated range of each sensor may be set as a range for providing some degree of reliability for estimating an output value of the counterpart abnormal sensor except for a range of a signal indicating an extreme state of two sensors from a whole output range and, for example, the compensated range may be set as only the remaining 80% except for 20% of opposite ends of a whole output range.
  • cooling performance of a vehicle cooling system may also be continuously, gradually, and stably provided and maintained, thereby enhancing the reliability and safety of the cooling system.
  • a cooling fan and an active air flap may perform close cooperative-control irrespective of other hardware components of a vehicle so as to maximize cooling performance of the vehicle and may also embody sufficient cooling performance of the vehicle when communication of the vehicle is abnormal or failure occurs in a sensor related to a cooling system, thereby enhancing the reliability of the vehicle cooling system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
US15/370,793 2016-10-20 2016-12-06 Cooling system of a vehicle and a method of controlling the cooling system Abandoned US20180112586A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/657,549 US11220951B2 (en) 2016-10-20 2019-10-18 Cooling system of a vehicle and a method of controlling the cooling system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160136557A KR101846722B1 (ko) 2016-10-20 2016-10-20 차량의 냉각시스템 및 그 제어방법
KR10-2016-0136557 2016-10-20

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/657,549 Division US11220951B2 (en) 2016-10-20 2019-10-18 Cooling system of a vehicle and a method of controlling the cooling system

Publications (1)

Publication Number Publication Date
US20180112586A1 true US20180112586A1 (en) 2018-04-26

Family

ID=61865893

Family Applications (2)

Application Number Title Priority Date Filing Date
US15/370,793 Abandoned US20180112586A1 (en) 2016-10-20 2016-12-06 Cooling system of a vehicle and a method of controlling the cooling system
US16/657,549 Active 2037-01-21 US11220951B2 (en) 2016-10-20 2019-10-18 Cooling system of a vehicle and a method of controlling the cooling system

Family Applications After (1)

Application Number Title Priority Date Filing Date
US16/657,549 Active 2037-01-21 US11220951B2 (en) 2016-10-20 2019-10-18 Cooling system of a vehicle and a method of controlling the cooling system

Country Status (4)

Country Link
US (2) US20180112586A1 (ko)
KR (1) KR101846722B1 (ko)
CN (1) CN107965384B (ko)
DE (1) DE102016224482B4 (ko)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10434868B2 (en) * 2017-10-04 2019-10-08 Toyota Jidosha Kabushiki Kaisha Grille shutter control device
CN114103626A (zh) * 2021-12-17 2022-03-01 中国重汽集团济南动力有限公司 一种商用车主动进气格栅控制系统
US20220063419A1 (en) * 2020-08-26 2022-03-03 Hyundai Motor Company Method and system for controlling high voltage power of electric vehicle
US11407277B2 (en) * 2019-04-24 2022-08-09 Hyundai Motor Company Thermal energy control apparatus for hybrid vehicle, thermal energy control method thereof and hybrid vehicle including the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7349628B2 (ja) * 2018-06-22 2023-09-25 パナソニックＩｐマネジメント株式会社 電池システム
GB2597809A (en) * 2020-07-29 2022-02-09 Brose Fahrzeugteile Se & Co Method for operating a cooling fan module of a motor vehicle

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546742A (en) * 1984-01-23 1985-10-15 Borg-Warner Corporation Temperature control system for internal combustion engine
US20020003381A1 (en) * 2000-05-03 2002-01-10 Nelson Christopher A. Brushless DC ring motor cooling system
US20130014931A1 (en) * 2011-07-11 2013-01-17 Suzuki Motor Corporation Automotive air-conditioning apparatus
US20140123917A1 (en) * 2012-11-02 2014-05-08 General Electric Company Engine cooling system and method for an engine
US20150167533A1 (en) * 2013-12-18 2015-06-18 Hyundai Motor Company Cooling system for vehicle and control method therefor
US20170054188A1 (en) * 2015-08-18 2017-02-23 Ford Global Technologies, Llc Climate Control System for a Vehicle
US20170125861A1 (en) * 2015-11-04 2017-05-04 Toyota Jidosha Kabushiki Kaisha Battery device
US20170291600A1 (en) * 2016-04-07 2017-10-12 Ford Global Technologies, Llc Methods and systems for adjusting engine operation based on weather data
US20170361698A1 (en) * 2016-06-17 2017-12-21 Ford Global Technologies, Llc Methods and systems for a vehicle cooling system

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4069484B2 (ja) 1998-02-02 2008-04-02 株式会社デンソー 車両用ファン故障診断装置
US6664751B1 (en) 2002-06-17 2003-12-16 Ford Motor Company Method and arrangement for a controlling strategy for electronic components in a hybrid electric vehicle
KR20080043522A (ko) 2006-11-14 2008-05-19 현대자동차주식회사 전동 냉각 팬 제어 방법 및 시스템
JP4909972B2 (ja) * 2008-10-02 2012-04-04 本田技研工業株式会社 車両用エンジンの冷却装置
US8117857B2 (en) 2009-02-20 2012-02-21 Tesla Motors, Inc. Intelligent temperature control system for extending battery pack life
KR20110031019A (ko) 2009-09-18 2011-03-24 현대자동차주식회사 라디에이터 플랩의 페일 세이프티 제어장치 및 방법
KR101039678B1 (ko) 2009-11-17 2011-06-09 현대자동차주식회사 하이브리드 차량의 전력변환장치 냉각 제어 방법
CN201792736U (zh) * 2010-09-21 2011-04-13 上海通用汽车有限公司 一种汽车前端进风格栅开度自动调节装置
KR101316230B1 (ko) 2011-12-02 2013-10-08 기아자동차주식회사 액티브 에어플랩의 제어방법
US8931440B2 (en) * 2012-07-26 2015-01-13 General Electric Company Engine cooling system and method for engine cooling
WO2014039031A1 (en) * 2012-09-05 2014-03-13 GM Global Technology Operations LLC Method and apparatus for isolating a fault in a controller area network
US8744658B1 (en) 2013-01-14 2014-06-03 GM Global Technology Operations LLC Outside air temperature correction for a vehicle
JP5888254B2 (ja) 2013-01-31 2016-03-16 株式会社デンソー 車両用グリルシャッタの制御装置
KR101583923B1 (ko) * 2014-05-09 2016-01-08 현대자동차주식회사 자동차용 라디에이터 플랩 제어 방법
KR101543001B1 (ko) * 2014-05-13 2015-08-07 현대자동차 주식회사 차량 엔진 룸 공기 유량 제어 장치 및 이를 포함하는 유량 제어 시스템
US9790842B2 (en) * 2015-02-09 2017-10-17 Ford Global Technologies, Llc Cooling system diagnostic method
JP6358120B2 (ja) * 2015-02-11 2018-07-18 株式会社デンソー 車両の制御装置
US9827846B2 (en) 2015-06-10 2017-11-28 Ford Global Technologies, Llc Traction battery cooling system
CN105857227A (zh) * 2016-04-14 2016-08-17 天津百利机械装备集团有限公司中央研究院 一种智能调节式护栅

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546742A (en) * 1984-01-23 1985-10-15 Borg-Warner Corporation Temperature control system for internal combustion engine
US20020003381A1 (en) * 2000-05-03 2002-01-10 Nelson Christopher A. Brushless DC ring motor cooling system
US20130014931A1 (en) * 2011-07-11 2013-01-17 Suzuki Motor Corporation Automotive air-conditioning apparatus
US20140123917A1 (en) * 2012-11-02 2014-05-08 General Electric Company Engine cooling system and method for an engine
US20150167533A1 (en) * 2013-12-18 2015-06-18 Hyundai Motor Company Cooling system for vehicle and control method therefor
US20170054188A1 (en) * 2015-08-18 2017-02-23 Ford Global Technologies, Llc Climate Control System for a Vehicle
US20170125861A1 (en) * 2015-11-04 2017-05-04 Toyota Jidosha Kabushiki Kaisha Battery device
US20170291600A1 (en) * 2016-04-07 2017-10-12 Ford Global Technologies, Llc Methods and systems for adjusting engine operation based on weather data
US20170361698A1 (en) * 2016-06-17 2017-12-21 Ford Global Technologies, Llc Methods and systems for a vehicle cooling system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10434868B2 (en) * 2017-10-04 2019-10-08 Toyota Jidosha Kabushiki Kaisha Grille shutter control device
DE102018120614B4 (de) 2017-10-04 2022-03-31 Toyota Jidosha Kabushiki Kaisha Kühlergrillklappen-Steuervorrichtung
US11407277B2 (en) * 2019-04-24 2022-08-09 Hyundai Motor Company Thermal energy control apparatus for hybrid vehicle, thermal energy control method thereof and hybrid vehicle including the same
US20220063419A1 (en) * 2020-08-26 2022-03-03 Hyundai Motor Company Method and system for controlling high voltage power of electric vehicle
US11760208B2 (en) * 2020-08-26 2023-09-19 Hyundai Motor Company Method and system for controlling high voltage power of electric vehicle
CN114103626A (zh) * 2021-12-17 2022-03-01 中国重汽集团济南动力有限公司 一种商用车主动进气格栅控制系统

Also Published As

Publication number Publication date
DE102016224482A1 (de) 2018-04-26
CN107965384A (zh) 2018-04-27
KR101846722B1 (ko) 2018-04-09
CN107965384B (zh) 2021-07-13
US11220951B2 (en) 2022-01-11
US20200049056A1 (en) 2020-02-13
DE102016224482B4 (de) 2023-07-06

Similar Documents

Publication Publication Date Title
US11220951B2 (en) Cooling system of a vehicle and a method of controlling the cooling system
US8655545B2 (en) Vehicle grille shutter system and method of its use
CN105799450B (zh) 蒸汽压缩式热泵系统中的除冰控制
CN108340771B (zh) 冷却风机和主动格栅百叶窗控制
US8485142B2 (en) Internal combustion engine cooling system and method for determining failure therein
US9592718B2 (en) Integrated cooling system control method
US20150013958A1 (en) Air-conditioning system
CN112302781B (zh) 发动机温控模块的控制方法
US10843530B2 (en) Vehicle air conditioning device
US10029557B2 (en) Hybrid electric vehicle cooling system with coolant amount detection between circuits
KR101694077B1 (ko) 차량의 공조 제어 방법
US10093151B2 (en) Method and apparatus for controlling a temperature regulation system
CN111902303B (zh) 冷却装置
KR101610519B1 (ko) Hev차량의 냉각시스템 및 그 제어방법
US20160102601A1 (en) Cooling water control apparatus
US9141117B2 (en) Thermal control of multiple devices
KR101905981B1 (ko) 차량의 모터 통합 제어 방법 및 그 시스템
KR20070059407A (ko) Ｈｅｖ용 공조 시스템과 이를 이용한 난방 제어방법
US10596879B2 (en) System and method for cooling fan control
US9581348B2 (en) Method of controlling the temperature of a controller of an electric compressor for an air conditioner in a vehicle
US20220074488A1 (en) Computing Device
KR20200108219A (ko) 차량용 열손실 관리 시스템 및 그 제어방법
WO2023195224A1 (ja) 車両制御装置及び過熱保護装置
KR20150141818A (ko) 차량의 공조 제어방법 및 그 장치
KR101922971B1 (ko) 전기 가열 컴포넌트가 장착된 자동차의 전기 가열 컴포넌트를 제어하기 위한 시스템 및 방법

Legal Events

Date Code Title Description
AS Assignment

Owner name: HYUNDAI MOTOR COMPANY, KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KWON, MUN SOON;KIM, KWANG KI;REEL/FRAME:040539/0141

Effective date: 20161124

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION