KR101765621B1 - Device and method for preventing freezing of mild hybrid vehicle - Google Patents

Device and method for preventing freezing of mild hybrid vehicle Download PDF

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Publication number
KR101765621B1
KR101765621B1 KR1020150174230A KR20150174230A KR101765621B1 KR 101765621 B1 KR101765621 B1 KR 101765621B1 KR 1020150174230 A KR1020150174230 A KR 1020150174230A KR 20150174230 A KR20150174230 A KR 20150174230A KR 101765621 B1 KR101765621 B1 KR 101765621B1
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South Korea
Prior art keywords
mild hybrid
generator
reference value
hybrid vehicle
freezing
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KR1020150174230A
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Korean (ko)
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KR20170067500A (en
Inventor
장화용
강기홍
유성일
김현
김용욱
김영민
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현대자동차 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Human Computer Interaction (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

A method of preventing freezing of a mild hybrid start-up generator in a mild hybrid vehicle including an engine and a mild hybrid start-up generator (MHSG) connected to the engine to assist the output, Comparing at least one of an outside air temperature and a cooling water temperature with a reference value if the ignition is on and comparing the at least one of the outside air temperature and the cooling water temperature with a reference value, And determining whether or not the mild hybrid start-up generator is frozen.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a device and a method for preventing freezing of a mild hybrid vehicle,

The present invention relates to a freeze prevention device for a mild hybrid vehicle and a freeze prevention method using the same.

A hybrid vehicle is an automobile that uses two or more different kinds of power sources, and generally means a vehicle driven by an engine that obtains a driving force by burning fuel and a motor that obtains a driving force by battery power.

Hybrid vehicles are classified into parallel type, series type and hybrid type according to the driving type and classified into the mild, middle and hard types according to the power sharing ratio between the engine and the motor.

Mild hybrid vehicles use less capacity batteries and motors than ordinary hard-type hybrid vehicles. In other words, a mild hybrid vehicle is equipped with a Mild Hybrid Starter and Generator (MHSG) instead of an alternator, a 12V battery, an additional 48V battery and a low voltage DC-DC converter (LDC).

Accordingly, the mild hybrid vehicle does not have a traveling mode in which the vehicle is driven by only the motor as a power source, but the MHSG can assist the engine torque according to the traveling state and charge the battery through regenerative braking. Therefore, the fuel efficiency of the vehicle can be improved and efficient energy utilization is possible.

In a conventional hybrid vehicle, the motor is used as an output power source by integrating the roles of a starter and a generator into one. That is, the conventional motor serves as a starter for operating the engine to smoothly start the engine and as a generator for charging electricity into the battery according to the operation of the engine.

Conventionally, only the operation of the motor is important, and instead of performing precise control, the engine is operated to a desired extent in a wide operating range to provide an auxiliary output of the engine. However, in mild hybrid vehicles, precise control of the MHSG is directly related to driving performance and merchantability.

Particularly, in the winter, there is a problem that malfunction occurs due to forcible operation when the main operating part of the MHSG and the belt is frozen, or main parts are damaged.

The matters described in the background section are intended to enhance the understanding of the background of the invention and may include matters not previously known to those skilled in the art.

The present invention proposes a freeze prevention apparatus for a mild hybrid vehicle and a freeze prevention method using the same, which can control whether the mild hybrid start-up generator (MHSG) is frozen or not.

A method for preventing freezing of a mild hybrid start-up generator in a mild hybrid vehicle including an engine and a mild hybrid start-up generator (MHSG) connected to the engine to assist the output, Comparing at least one of an outside air temperature and a cooling water temperature with a reference value if the ignition is on, comparing the at least one of the outside air temperature and the cooling water temperature with a reference value, and if the outside air temperature or the cooling water temperature is lower than a reference value And determining whether the mild hybrid start-up generator is frozen.

The comparing with the reference value may include comparing the outside air temperature to a first reference value, and comparing the cooling water temperature to a second reference value.

Wherein the step of determining whether the freezing state is frozen is performed by applying an operation signal to the mild hybrid start-up generator when the outside air temperature is lower than a first reference value and the cooling water temperature is lower than a second reference value, And determining whether the mild hybrid start-up generator is frozen by detecting the speed.

Comparing the battery voltage with a third reference value, and when the battery voltage is higher than the third reference value, heating the mild hybrid start-up generator.

The step of heating may include applying a voltage lower than the operating voltage of the mild hybrid start-up generator to the mild hybrid start-up generator.

The freeze prevention device of the mild hybrid vehicle of the present invention includes XXXXX.

1. A freeze prevention apparatus for a mild hybrid vehicle, comprising: an engine; and a mild hybrid start-up generator (MHSG) connected to the engine for assisting an output of the engine, a detector for detecting data for freeze prevention control of the mild hybrid vehicle, And a controller for controlling the engine of the mild hybrid vehicle and the mild hybrid starter generator based on at least one of the external air temperature and the cooling water temperature when the ignition of the vehicle is turned on, If the temperature or the cooling water temperature is lower than the reference value, it can be determined whether or not the mild hybrid start-up generator is frozen.

The control unit may include a freeze determination unit for applying an operation signal to the mild hybrid start-up generator and detecting the rotational speed of the mild hybrid start-up generator to determine whether the mild hybrid start-up generator is frozen.

The freeze determination unit may determine whether the mild hybrid start-up generator is frozen when the outside air temperature is lower than a first reference value and the cooling water temperature is lower than a second reference value.

The control unit may include a heating control unit for controlling the mild hybrid start-up generator to be heated by comparing the battery voltage with a reference value when it is determined that the mild hybrid start-up generator is frozen.

The heating control unit may control to apply a voltage lower than the operating voltage of the mild hybrid start-up power generator to the mild hybrid start-up power generator.

According to the present invention, when the outside air temperature and the cooling water temperature are low, it is determined whether or not the mild hybrid start-up generator (MHSG) is frozen and the frozen mild hybrid start-up generator is heated so as to prevent breakage due to freezing Environment.

1 is a block diagram schematically showing a mild hybrid vehicle including an anti-freezing device for a mild hybrid vehicle according to an embodiment of the present invention.
FIG. 2 is a flow chart briefly illustrating a process for preventing breakage due to freezing of a mild hybrid start-up generator according to an embodiment of the present invention.
3 is a view showing a frost detection signal of a mild hybrid start-up power generator according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Like numbers refer to like elements throughout the specification.

As used herein, the terms "vehicle", "car", "vehicle", "automobile", or other similar terms are intended to encompass various types of vehicles, including sports utility vehicles (SUVs), buses, Including automobiles, including ships, aircraft, and the like, including boats and ships, and may be used in hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen fuel vehicles and other alternative fuels Fuel) vehicles.

Additionally, some methods may be executed by at least one controller. The term controller refers to a hardware device comprising a memory and a processor adapted to execute one or more steps that are interpreted as an algorithmic structure. The memory is adapted to store algorithm steps and the processor is adapted to perform the algorithm steps specifically to perform one or more processes described below.

Further, the control logic of the present invention may be embodied in a non-volatile, readable medium on a computer readable medium, including executable program instructions, executed by a processor, controller, or the like. Examples of computer-readable means include, but are not limited to, ROM, RAM, CD-ROM, magnetic tape, floppy disk, flash drive, smart card and optical data storage. The computer readable medium can be distributed to networked computer systems and stored and executed in a distributed manner, for example, by a telematics server or a CAN (Controller Area Network).

Hereinafter, a freeze prevention apparatus for a mild hybrid vehicle and a freeze prevention method using the same according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3. FIG.

1 is a block diagram schematically showing a mild hybrid vehicle including an anti-freezing device for a mild hybrid vehicle according to an embodiment of the present invention. At this time, the freeze prevention device of the mild hybrid vehicle is only shown in the schematic configuration necessary for the explanation according to the embodiment of the present invention, and is not limited to this configuration.

1, a mild hybrid vehicle according to an embodiment of the present invention includes a sensor unit 10, an engine 20, a transmission 30, a Mild Hybrid Starter and Generator (MHSG) 40, a battery 50, and a freeze prevention device 100. [

 The sensor unit 10 detects data for freeze prevention control of the mild hybrid vehicle, and the data detected by the sensor unit 10 is transmitted to the freeze prevention apparatus 100. The sensor unit 10 includes an engine speed sensor 11, a coolant temperature sensor 12, an intake air temperature sensor 13, an ambient temperature sensor 14, and a combustion pressure sensor 15.

The engine speed sensor 11 detects the speed of the engine in accordance with the phase change of the crankshaft or the phase change of the camshaft and transmits the signal to the freeze prevention device 100. [

The coolant temperature sensor 12 detects the temperature of the coolant that varies according to the change in the operating state of the engine, and transmits the signal to the freeze prevention device 100.

The intake air temperature sensor 13 detects the temperature of the air supplied to the intake manifold and transmits the signal to the freeze prevention device 100. [

The outdoor temperature sensor 14 detects the temperature of the outside air of the vehicle and transmits the signal to the freeze prevention device 100.

The combustion pressure sensor 15 detects the combustion pressure according to the combustion state in the engine cylinder and transmits the signal to the freeze prevention device 100. [

The engine 20 outputs power in the start-up state as a power source.

The transmission 30 may be applied to any one of an automatic transmission (AMT) or a dual clutch transmission (DCT), and an arbitrary gear is selected according to the vehicle speed and the driving condition to maintain driving by outputting the driving force to the driving wheels.

The MHSG 40 is connected to a swirling flow of the engine 20 and receives drive power through an inverter in the engine 20 to start the engine 20 or assist the output of the engine 20. [ Further, the MHSG 40 operates as a generator in a case of traveling along a line, and supplies regenerative energy to the battery 50.

The battery 50 is electrically connected to the MHSG 40 so that the voltage for driving the MHSG 40 is stored. The battery 50 supplies a driving voltage to the MHSG 40 when assisting the output of the engine 20 and a voltage generated by the MHSG 40 during regenerative braking. In an embodiment of the present invention, the battery 50 may be a 48V battery.

The anti-freezing device 100 of the mild hybrid vehicle according to the embodiment of the present invention compares the outside air temperature and the cooling water temperature with a reference value, and determines whether the MHSG 40 is frozen. When the MHSG 40 is determined to be frozen, the anti-freezing device 100 of the mild hybrid vehicle controls to apply voltage to the MHSG 40 to heat it.

The anti-freezing device 100 of the mild hybrid vehicle according to an embodiment of the present invention includes a detection unit 110 and a control unit 120.

The detection unit 110 detects data for freeze prevention control of the mild hybrid vehicle. The detection unit 110 detects the external air temperature and the cooling water temperature when the ignition is turned on and provides the detected data to the control unit 120. [

The control unit 120 controls the engine 20 and the MHSG 40 of the mild hybrid vehicle based on the data provided by the detection unit 110. When the ignition is turned on, the control unit 120 compares at least one of the external air temperature and the cooling water temperature with a reference value.

If the external air temperature and the cooling water temperature are lower than the reference value, the control unit 120 determines whether the MHSG 40 is frozen. When the MHSG 40 is frozen, the controller 120 controls the MHSG 40 to apply a signal to the frozen MHSG 40 to heat the frozen MHSG 40.

The control unit 120 includes a freeze determination unit 122 and a heating control unit 124 according to an embodiment of the present invention.

The freezing determination unit 122 determines whether the MHSG 40 is frozen when the outside air temperature is lower than the first reference value and the cooling water temperature is lower than the second reference value. The freeze determination unit 122 can determine whether the MHSG 40 is frozen by applying an operation signal to the MHSG 40 and detecting the rotation speed of the MHSG 40. [

When it is determined that the MHSG 40 is frozen, the heating control unit 124 compares the battery voltage with a reference value and controls the MHSG 40 to heat. The heating control unit 124 may control the heating of the MHSG 40 by applying a voltage lower than the operating voltage of the MHSG 40. [

For this purpose, the control unit 120 may be implemented with one or more processors operating with the set program, and the set program may be executed to perform each step of the method for preventing freezing of the exhaust gas recirculation valve according to the embodiment of the present invention It may be programmed.

FIG. 2 is a flow chart briefly illustrating a process for preventing breakage due to freezing of a mild hybrid start-up generator according to an embodiment of the present invention. The following flowchart will be described using the same reference numerals in conjunction with the configuration of Fig.

Referring to FIG. 2, the freeze prevention apparatus 100 of the mild hybrid vehicle according to the embodiment of the present invention determines whether the ignition of the mild hybrid vehicle is on (S102).

When the ignition is ON, the freeze prevention apparatus 100 of the mild hybrid vehicle according to the embodiment of the present invention compares at least one of the external air temperature and the cooling water temperature with a reference value and determines whether the MHSG 40 is frozen (S104, S106).

The anti-freezing device 100 of the mild hybrid vehicle according to the embodiment of the present invention compares the outside air temperature with the first reference value, and compares the cooling water temperature with the second reference value. When the outdoor air temperature is lower than the first reference value and the cooling water temperature is lower than the second reference value, the freeze prevention apparatus 100 of the mild hybrid vehicle according to the embodiment of the present invention determines whether or not the MHSG 40 is frozen .

The freeze prevention apparatus 100 of the mild hybrid vehicle according to the embodiment of the present invention applies an operation signal to the MHSG 40 and detects the rotation speed of the MHSG 40 to determine whether the MHSG 40 is frozen S108).

3 is a view showing a frost detection signal of a mild hybrid start-up power generator according to an embodiment of the present invention.

Referring to FIG. 3, the anti-freezing device 100 of the mild hybrid vehicle according to the embodiment of the present invention operates in the MHSG 40 through a communication method such as a controller area network (CAN) or a local interconnect network (LIN) The signal (A) and the freeze check signal (B) are applied.

Here, the operation attempt signal A is a signal that is applied to gradually increase the rotation speed of the MHSG 40 in the stopped state when the freezing is expected due to the low outside air temperature and the cooling water temperature. The freeze check signal B is a signal to detect the rotational speed of the MHSG 40 and to check whether the MHSG 40 is frozen or not.

The freeze prevention apparatus 100 of the mild hybrid vehicle according to the embodiment of the present invention gradually increases the operation attempt signal A by a certain unit and applies the same to the MHSG 40. When the MHSG 40 operates at the maximum rotation speed The signal is applied.

In addition, the freeze prevention apparatus 100 of the mild hybrid vehicle according to the embodiment of the present invention determines whether the MHSG 40 is frozen by applying a freeze check signal (B).

The freezing prevention device 100 of the mild hybrid vehicle according to the embodiment of the present invention detects the rotation speed of the MHSG 40 according to the freeze check signal B and detects the target when the MHSG 40 operates normally It is possible to judge whether or not to freeze by comparing with the rotation speed.

For example, when the value obtained by subtracting the detected rotation speed from the target rotation speed is smaller than the set reference value, it is determined that the MHSG 40 operates normally. However, if the value obtained by subtracting the detected rotation speed from the target rotation speed is greater than the reference value, it can be determined that the MHSG 40 is frozen.

The freeze prevention device 100 of the mild hybrid vehicle according to the embodiment of the present invention compares the battery voltage with a third reference value when it is determined that the MHSG 40 has been frozen and the battery voltage is higher than the third reference value , The MHSG 40 is controlled to be heated (S110, S112). The anti-freezing device 100 of the mild hybrid vehicle according to the embodiment of the present invention applies a voltage that is lower than the initial operating voltage of the MHSG 40 but does not operate the motor, thereby heating the MHSG 40.

The freeze prevention device 100 of the mild hybrid vehicle according to the embodiment of the present invention may apply power to the heating coil of the MHSG 40 for a certain period of time to heat the MHSG 40, .

If the battery voltage is lower than the third reference value, it is determined that the MHSG 40 can not be operated, and a warning lamp or warning message is displayed to indicate that the MHSG 40 is inoperable (S114).

As described above, the apparatus and method for preventing freezing of a mild hybrid vehicle according to an embodiment of the present invention determine whether the mild hybrid start-up generator (MHSG) is frozen when the outside air temperature and the coolant temperature are low, So as to provide an environment in which breakage due to freezing can be prevented.

The embodiments of the present invention described above are not implemented only by the apparatus and method, but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. Such a recording medium can be executed not only on a server but also on a user terminal.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

Claims (11)

A method for preventing freezing of a mild hybrid start-up generator in a mild hybrid vehicle including an engine and a mild hybrid start-up generator (MHSG) connected to the engine to assist the output,
Determining whether the ignition of the mild hybrid vehicle is on,
If the ignition is on, comparing at least one of the outside air temperature or the cooling water temperature with a reference value, and
Wherein when the outside air temperature or the cooling water temperature is lower than a reference value, the control unit increases the operation attempt signal by a predetermined unit to apply the freeze check signal to the mild hybrid start-up generator, Determining whether the mild hybrid start-up generator is frozen by detecting the rotation speed of the mild hybrid start-up generator and comparing the detected rotation speed with a target rotation speed at the time of normal operation;
And a freezing prevention device for preventing freezing of the mild hybrid vehicle. The method of claim 1,
Wherein comparing the reference value with the reference value comprises:
Comparing the outside air temperature with a first reference value, and
Comparing the cooling water temperature with a second reference value
And a freezing prevention device for preventing freezing of the mild hybrid vehicle. 3. The method of claim 2,
The step of determining whether the freezing condition is frozen may include:
Wherein when the outside air temperature is lower than a first reference value and the cooling water temperature is lower than a second reference value, an operation signal is applied to the mild hybrid start-up generator, and the rotation speed of the mild hybrid start- Determining whether or not to freeze
And a freezing prevention device for preventing freezing of the mild hybrid vehicle. 4. The method of claim 3,
Comparing the battery voltage to a third reference value, and
When the battery voltage is higher than the third reference value, heating the mild hybrid start-up generator
Wherein the freezing prevention device further includes a freezing prevention device for preventing freezing of the mild hybrid vehicle. 5. The method of claim 4,
Wherein the heating comprises:
Applying a voltage lower than the operating voltage of the mild hybrid starter generator to the mild hybrid starter generator
And a freezing prevention device for preventing freezing of the mild hybrid vehicle. A freeze prevention apparatus in a mild hybrid vehicle including an engine and a mild hybrid start-up generator (MHSG) connected to the engine to assist the output,
A detector for detecting data for freeze prevention control of the mild hybrid vehicle, and
A control unit for controlling the engine of the mild hybrid vehicle and the mild hybrid start-
/ RTI >
Wherein,
When the ignition of the vehicle is turned on, at least one of the outside air temperature and the cooling water temperature is compared with a reference value, and when the outdoor air temperature or the cooling water temperature is lower than the reference value, the mild hybrid start- And a control unit for detecting a rotational speed of the mild hybrid start-up generator by applying a freeze check signal to the detected rotational speed, comparing the detected rotational speed with a target rotational speed at the time of normal operation And determines whether or not the mild hybrid start-up generator is frozen. The method of claim 6,
Wherein,
A freeze determination unit for determining whether the mild hybrid start-up generator is frozen by detecting the rotational speed of the mild hybrid start-
And a freezing prevention device for the mild hybrid vehicle. 8. The method of claim 7,
Wherein the freezing determination unit comprises:
Wherein the controller determines whether the mild hybrid start-up generator is frozen when the outside air temperature is lower than a first reference value and the cooling water temperature is lower than a second reference value. The method of claim 6,
Wherein,
And a heating control unit for controlling the mild hybrid start-up generator to be heated by comparing the battery voltage with a reference value when it is determined that the mild hybrid start-
And a freezing prevention device for the mild hybrid vehicle. The method of claim 9,
The heating control unit,
And a voltage lower than an operating voltage of the mild hybrid start-up generator is applied to the mild hybrid start-up generator. 11. The method of claim 10,
Wherein,
Wherein the control unit determines that the mild hybrid start-up generator is inoperable and outputs a warning message when the battery voltage is lower than the reference value.
KR1020150174230A 2015-12-08 2015-12-08 Device and method for preventing freezing of mild hybrid vehicle KR101765621B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004208457A (en) * 2002-12-26 2004-07-22 Zexel Valeo Climate Control Corp Motor controller
JP2014113943A (en) * 2012-12-11 2014-06-26 Mazda Motor Corp Control device for hybrid vehicle
KR101518935B1 (en) * 2013-12-18 2015-05-11 현대자동차 주식회사 Shift control system for mild hybrid vehicle and method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004208457A (en) * 2002-12-26 2004-07-22 Zexel Valeo Climate Control Corp Motor controller
JP2014113943A (en) * 2012-12-11 2014-06-26 Mazda Motor Corp Control device for hybrid vehicle
KR101518935B1 (en) * 2013-12-18 2015-05-11 현대자동차 주식회사 Shift control system for mild hybrid vehicle and method thereof

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