KR20080053836A - Engine control device for car and method thereof - Google Patents

Engine control device for car and method thereof Download PDF

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Publication number
KR20080053836A
KR20080053836A KR1020060125858A KR20060125858A KR20080053836A KR 20080053836 A KR20080053836 A KR 20080053836A KR 1020060125858 A KR1020060125858 A KR 1020060125858A KR 20060125858 A KR20060125858 A KR 20060125858A KR 20080053836 A KR20080053836 A KR 20080053836A
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South Korea
Prior art keywords
engine
controller
vehicle
engine speed
control
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KR1020060125858A
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Korean (ko)
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이승현
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현대자동차주식회사
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Priority to KR1020060125858A priority Critical patent/KR20080053836A/en
Publication of KR20080053836A publication Critical patent/KR20080053836A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/14—Control of torque converter lock-up clutches
    • 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
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18109—Braking
    • B60W30/18127—Regenerative braking
    • 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
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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

Abstract

An apparatus and a method for controlling an engine for a vehicle are provided to complete control of an engine RPM if direct connection of a lock-up clutch is performed by a flag set by a lock-up clutch control logic. An apparatus for controlling an engine for a vehicle comprises a vehicle controller(10) that outputs control signals for regenerative braking and regeneration. An engine controller(20) is driven by the control signal of regenerative braking to set the increment of a target torque. A transmission controller(30) outputs a target engine RPM and an engine RPM control request flag to the engine controller. A lock-up clutch control logic(40) is provided in the transmission controller to control rise of an engine RPM according to the increment of the target torque. A motor controller(50) starts regenerative generation according to the control signal for regeneration if direct connection of a lock-up clutch is performed by the lock-up clutch control logic.

Description

차량의 엔진 제어 장치 및 방법{Engine control device for car and method thereof}Engine control device for vehicle and method

도 1은 종래 차량 엔진 제어장치의 구성도.1 is a block diagram of a conventional vehicle engine control apparatus.

도 2는 본 발명의 실시예에 따른 차량의 엔진 제어장치에 대한 블럭 구성도.Figure 2 is a block diagram of an engine control apparatus for a vehicle according to an embodiment of the present invention.

도 3은 본 발명의 실시예에 따른 차량의 엔진 제어방법의 흐름도.3 is a flowchart of a method for controlling an engine of a vehicle according to an exemplary embodiment of the present invention.

도 4는 본 발명의 실시예로 차량의 엔진 제어의 개념을 보인 파형도.Figure 4 is a waveform diagram showing the concept of engine control of the vehicle in an embodiment of the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10; 차량 제어기 20; 엔진 제어기10; Vehicle controller 20; Engine controller

30; 변속기 제어기 40; 록업 클러치 제어로직30; Transmission controller 40; Lock Up Clutch Control Logic

50; 모터 제어기50; Motor controller

본 발명은 하이브리드, 연료전지, 전기 차량 등의 엔진 제어 기술에 관한 것 으로서, 보다 상세하게는 엔진의 회전수를 자동으로 상승 및 일정시간동안 유지되도록 제어하여, 터빈과의 속도차를 일정범위 이내로 줄임으로서 록업클러치를 용이하게 직결할 수 있도록 하는 차량의 엔진 제어 장치 및 방법에 관한 것이다.The present invention relates to an engine control technology for a hybrid, fuel cell, electric vehicle, and more. More specifically, the engine speed is controlled to be automatically maintained for a predetermined time and the engine speed is maintained within a certain range. An engine control apparatus and method for a vehicle, which can be directly connected to the lockup clutch by reducing it.

일반적으로 하이브리드, 연료전지, 전기 차량 등에서 연비 향상을 위한 기술의 하나인 회생제동(Regenerative Braking)은 첨부된 도 1에서와 같이, 차량의 타성 주행(coast) 및 감속시 차량의 주행 관성 에너지의 일부를 엔진(1)이 연료 컷(fuel cut-off)인 상태에서 모터/발전기(2)를 통해 모터제어기(3)로 전달하여 이를 에너지 저장장치(4)에 전기에너지 형태로 회수함으로써 연비를 향상시킬 수 있게 되는 것이다.In general, regenerative braking, which is one of technologies for improving fuel efficiency in hybrids, fuel cells, and electric vehicles, is a part of driving inertia energy of the vehicle during coasting and deceleration of the vehicle, as shown in FIG. 1. Is delivered to the motor controller 3 through the motor / generator 2 in a state where the engine 1 is a fuel cut-off, and is recovered to the energy storage device 4 in the form of electrical energy to improve fuel economy. You will be able to.

이에 종래 토크 컨버터(5)가 있는 자동 변속기를 장착한 차량의 경우에는 회생제동에 의한 연료 컷은 토크컨버터(5)에 록업(lock-up)클러치(6)가 직결되어야 가능하며, 회생 제동이 예상되는 경우에는 주로 운전자가 타성 주행 또는 감속을 위하여 가속 페달에서 발을 떼거나 브레이크 페달을 밟는 경우가 된다.Therefore, in the case of a vehicle equipped with an automatic transmission having a conventional torque converter 5, fuel cut by regenerative braking is possible only when the lock-up clutch 6 is directly connected to the torque converter 5, and regenerative braking is performed. When anticipated, drivers often take their foot off the accelerator or step on the brake pedal to drive or decelerate.

그러나, 종래에는 엔진(펌프)(1)의 회전수가 터빈 회전수보다 현저하게 낮아져 속도차(slip)가 커지는 경우, 록업 클러치(6)의 직결을 위해 터빈 축이 극복해야 하는 엔진의 저항 토크(엔진 모터링 토크)가 상대적으로 커지게 되므로, 록업 클러치(6)의 직결이 원활하게 이루어지지 못하였으며, 그 직결이 이루어지더라도 충격 발생으로 인해 운전성이 현저하게 저하되는 단점이 있다.However, in the related art, when the rotation speed of the engine (pump) 1 is significantly lower than the turbine rotation speed, and the speed slippage is large, the resistance torque of the engine that the turbine shaft must overcome for the direct connection of the lock-up clutch 6 ( Since the engine motor torque is increased, the direct connection of the lock-up clutch 6 is not performed smoothly, and even if the direct connection is made, the driving performance is remarkably lowered due to the impact.

따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출된 것으로서, 엔진의 회전수를 자동으로 상승 및 일정시간동안 유지되도록 제어하여, 터빈과의 속도차를 일정범위 이내로 줄임으로서 록업클러치의 직결 진입을 용이하게 하면서, 회생제동 및 연료 컷의 영역을 확대할 수 있도록 하는 차량의 엔진 제어 장치 및 방법을 제공하려는데 목적이 있는 것이다.Accordingly, the present invention has been made to solve the above-mentioned conventional problems, by controlling the speed of the engine to automatically rise and maintain for a certain time, by reducing the speed difference with the turbine within a certain range of the lock-up clutch It is an object of the present invention to provide an engine control apparatus and method for a vehicle that facilitates direct entry and enables to expand the area of regenerative braking and fuel cut.

이하, 첨부된 도면에 의하여 본 발명의 바람직한 일실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

도 2는 본 발명의 실시예에 따른 차량의 엔진 제어장치에 대한 블럭 구성도를 도시한 것이다.2 is a block diagram of an engine control apparatus for a vehicle according to an exemplary embodiment of the present invention.

도 2를 참조하면, 본 발명의 실시예에 따른 차량의 엔진 제어장치는, 2, the engine control apparatus of a vehicle according to an embodiment of the present invention,

감속 연료컷 상태와 발전 토크값을 확인하면서 회생 제동과 회생발전의 제어신호를 출력하는 차량 제어기(10);A vehicle controller 10 for outputting regenerative braking and regenerative generation control signals while checking the deceleration fuel cut state and the generation torque value;

상기 차량제어기(10)에서 출력하는 회생 제동의 제어신호에 따라 구동하고, 목표 토크 증가량을 설정하는 엔진제어기(20);An engine controller 20 driving according to the regenerative braking control signal output from the vehicle controller 10 and setting a target torque increase amount;

상기 엔진 제어기(20)의 구동시, 엔진 제어기(20)에 목표 토크 증가량 설정을 위한 목표 엔진 회전수 및 엔진 회전수 제어 요구 플래그를 출력하는 변속기 제어기(30);A transmission controller 30 outputting a target engine speed and engine speed control request flag for setting a target torque increase amount to the engine controller 20 when the engine controller 20 is driven;

상기 변속기 제어기(30)내에 구성하되, 엔진 제어기(20)에서 설정한 목표 토크 증가량에 따라 엔진 회전수의 상승을 제어하여 록업클러치의 직결 진입을 위한 플래그를 설정한 후 이를 차량제어기(10)로 출력하는 록업클러치 제어로직(40); 및,It is configured in the transmission controller 30, and controls the increase of the engine speed in accordance with the target torque increase amount set by the engine controller 20 to set a flag for the direct entry of the lock-up clutch to the vehicle controller 10 An output lock up clutch control logic 40; And,

상기 록업클러치 제어로직(40)에 의해 록업클러치의 직결시, 상기 차량제어기(10)로부터 출력하는 회생발전의 제어신호에 따라 회생 발전을 개시하는 모터 제어기(50); 를 포함한다.A motor controller (50) which starts regenerative power generation in accordance with the regenerative power generation control signal output from the vehicle controller (10) when the lockup clutch control logic (40) is directly connected; It includes.

그리고, 도 3은 상기 차량의 엔진 제어장치에 의해 구현되는 엔진 제어방법을 보인 흐름도로 그 진행은,3 is a flowchart illustrating an engine control method implemented by the engine control apparatus of the vehicle.

운전자에 의한 가속페달 오프에 의해 차량이 감속 및 타성주행 상태로 진입시, 변속기 제어기(30)에 회생제동을 요구하는 단계;Requesting regenerative braking to the transmission controller 30 when the vehicle enters a deceleration and coasting state by the accelerator pedal off by the driver;

상기 요구로부터 변속기 제어기(30)가 목표 엔진 회전수 및 엔진 회전수 제어요구의 플래그를 설정하는 단계;Setting a flag of a target engine speed and an engine speed control request by the transmission controller 30 from the request;

상기 설정되는 플래그로부터 엔진 제어기(20)가 현재 엔진 회전수와 목표 엔진 회전수의 차이를 이용하여 목표 토크 증가량을 설정하는 단계;Setting, by the engine controller (20), a target torque increase amount using the difference between the current engine speed and the target engine speed from the set flag;

상기 단계로부터 설정된 목료 토크 증가량으로부터 록업 클러치 제어로직(40)이 엔진 회전수 상승을 제어한 후 록업클러치의 직결 진입을 위한 플래그를 설정하는 단계;Setting a flag for direct entry of the lock-up clutch after the lock-up clutch control logic 40 controls the engine speed increase from the amount of torque increase from the step;

상기 설정된 플래그로부터 록업클러치의 직결이 이루어지면 엔진 연료 컷을 제어한 후 모터 제어기(50)가 차량 제어기(10)에서 출력하는 회생발전의 제어신호 에 따라 회생 발전을 진행하는 단계; 를 포함한다.Controlling the engine fuel cut when the lock-up clutch is directly connected to the set flag, and then performing regenerative power generation according to the regenerative power control signal output from the vehicle controller 10 by the motor controller 50; It includes.

다른 일면에 따라, 상기 터빈 회전수와 엔진 회전수의 슬립상태가 일정 수준 이하이면 토크 컨버터 클러치를 부드럽게 직결하도록 일정시간동안 엔진 회전수를 일정하게 유지하는 단계; 를 더 포함한다.According to another aspect, if the slip state of the turbine speed and the engine speed is below a predetermined level, maintaining the engine speed constant for a predetermined time to smoothly connect the torque converter clutch; It further includes.

이와같이 구성된 본 발명의 실시예에 따른 작용을 첨부된 도 2 내지 도 4를 참조하여 설명하면 다음과 같다.Referring to Figures 2 to 4 attached to the operation according to the embodiment of the present invention configured as described above are as follows.

먼저, 운전자에 의한 가속페달 오프에 의해 차량이 감속 및 타성주행 상태로 진입시, 차량 제어기(10)에서는 엔진 제어기(20)로 회생 제동의 제어신호를 출력한다.First, when the vehicle enters the deceleration and coasting driving state by the accelerator pedal off by the driver, the vehicle controller 10 outputs the regenerative braking control signal to the engine controller 20.

그러면, 상기 엔진 제어기(20)의 구동이 이루어지면서, 상기 엔진제어기(20)는 변속기 제어기(30)로 회생 제동의 제어신호를 전달하게 되는 바,Then, while the engine controller 20 is driven, the engine controller 20 transmits the regenerative braking control signal to the transmission controller 30.

상기 변속기 제어기(30)에서는 목표 엔진 회전수 및 엔진 회전수 제어요구의 플래그를 설정한 후 이를 엔진 제어기(20)로 출력한다.The transmission controller 30 sets a flag of the target engine speed and the engine speed control request and outputs the flag to the engine controller 20.

그러면, 상기 엔진 제어기(20)는 차량 제어기(10)로 감속 연료컷의 상태를 전달하는 한편, 상기 설정되는 플래그로부터 현재 엔진 회전수와 목표 엔진 회전수의 차이를 이용하여 목표 토크 증가량을 설정한 후 이를 록업 클러치 제어로직(40)으로 출력한다.Then, the engine controller 20 transmits the state of the deceleration fuel cut to the vehicle controller 10, and sets a target torque increase amount by using the difference between the current engine speed and the target engine speed from the set flag. This is then output to the lockup clutch control logic 40.

이때, 상기 록업 클러치 제어로직(40)은 엔진 토크 증가량에 따라 엔진 회전수를 상승 제어하는 한편, 록업클러치의 직결 진입을 위한 플래그를 설정한다.At this time, the lock-up clutch control logic 40 controls the engine speed in accordance with the increase of the engine torque, and sets a flag for directly entering the lock-up clutch.

여기서, 상기 록업 클러치 제어로직(40)은 터빈 회전수와 엔진 회전수의 슬 립상태가 일정 수준 이하인 경우, 상기 토크 컨버터 클러치를 부드럽게 직결하도록 일정시간동안 엔진 회전수를 일정하게 유지시키는 제어동작을 수행하게 된다.Here, the lock-up clutch control logic 40 is a control operation for maintaining the engine speed constant for a predetermined time to smoothly connect the torque converter clutch when the slip state of the turbine speed and the engine speed is less than a predetermined level. Will be performed.

다음으로, 상기 록업 클러치 제어로직(40)으로부터 설정된 플래그에 의해 록업클러치의 직결이 이루어지면 그 직결상태는 차량 제어기(10)로 전달됨으로써, 상기 차량 제어기(10)는 엔진 회전수의 제어를 종료하는 한편, 엔진 연료 컷을 제어한 후 모터 제어기(50)에 회생 발전의 제어신호를 출력한다.Next, when the lockup clutch is directly connected by the flag set from the lockup clutch control logic 40, the direct connection state is transmitted to the vehicle controller 10, so that the vehicle controller 10 terminates the control of the engine speed. On the other hand, after controlling the engine fuel cut, the control signal for regenerative power generation is output to the motor controller 50.

그러면, 상기 모터 제어기(50)에 의한 회생 발전이 개시되는 것이다.Then, regenerative power generation by the motor controller 50 is started.

이상에서 설명한 바와같이 본 발명은 엔진의 회전수를 자동으로 상승 및 일정시간동안 유지되도록 제어하여 터빈과의 속도차를 일정범위 이내로 줄이고, 이를 통해 록업클러치의 직결 진입이 용이하게 이루어지도록 함은 물론, 그 직결 진입으로부터 회생제동 및 연료 컷의 영역을 확대하는 효과를 얻을 수 있는 것이다.As described above, the present invention controls the engine speed to be automatically maintained for a certain period of time to increase and reduce the speed difference with the turbine within a certain range, thereby making it easy to directly enter the lock-up clutch. Therefore, the regenerative braking and the fuel cut can be expanded from the direct entry.

본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와같은 변경은 청구범위 기재의 범위내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (3)

감속 연료컷 상태와 발전 토크값을 확인하면서 회생 제동과 회생발전의 제어신호를 출력하는 차량 제어기;A vehicle controller for outputting regenerative braking and regenerative power generation control signals while checking the deceleration fuel cut state and the generation torque value; 상기 차량제어기에서 출력하는 회생 제동의 제어신호에 따라 구동하고, 목표 토크 증가량을 설정하는 엔진제어기;An engine controller which drives in accordance with the regenerative braking control signal output from the vehicle controller and sets a target torque increase amount; 상기 엔진 제어기의 구동시, 엔진 제어기에 목표 토크 증가량 설정을 위한 목표 엔진 회전수 및 엔진 회전수 제어 요구 플래그를 출력하는 변속기 제어기;A transmission controller for outputting a target engine speed and engine speed control request flag for setting a target torque increase amount to an engine controller when the engine controller is driven; 상기 변속기 제어기내에 구성하되, 엔진 제어기에서 설정한 목표 토크 증가량에 따라 엔진 회전수의 상승을 제어하여 록업클러치의 직결 진입을 위한 플래그를 설정한 후 이를 차량제어기로 출력하는 록업클러치 제어로직; 및,A lockup clutch control logic configured in the transmission controller to control an increase in engine speed according to a target torque increase amount set by an engine controller to set a flag for direct entry of the lockup clutch and then output the flag to the vehicle controller; And, 상기 록업클러치 제어로직에 의해 록업클러치의 직결시, 상기 차량제어기로부터 출력하는 회생발전의 제어신호에 따라 회생 발전을 개시하는 모터 제어기; 를 포함하여 구성함을 특징으로 하는 차량의 엔진 제어장치.A motor controller which starts regenerative power generation according to a regenerative power generation signal output from the vehicle controller when the lockup clutch is directly connected by the lockup clutch control logic; Engine control apparatus for a vehicle, characterized in that comprising a. 운전자에 의한 가속페달 오프에 의해 차량이 감속 및 타성주행 상태로 진입시, 변속기 제어기에 회생제동을 요구하는 단계;Requesting regenerative braking from a transmission controller when the vehicle enters a deceleration and coasting state by an accelerator pedal off by a driver; 상기 요구로부터 변속기 제어기가 목표 엔진 회전수 및 엔진 회전수 제어요구의 플래그를 설정하는 단계;Setting, by the transmission controller, a flag of a target engine speed and an engine speed control request from the request; 상기 설정되는 플래그로부터 엔진 제어기가 현재 엔진 회전수와 목표 엔진 회전수의 차이를 이용하여 목표 토크 증가량을 설정하는 단계;Setting, by the engine controller, a target torque increase amount by using a difference between a current engine speed and a target engine speed from the set flag; 상기 단계로부터 설정된 목료 토크 증가량으로부터 록업 클러치 제어로직이 엔진 회전수 상승을 제어한 후 록업클러치의 직결 진입을 위한 플래그를 설정하는 단계;Setting a flag for direct entry of the lockup clutch after the lockup clutch control logic controls the engine speed increase from the amount of torque increase set from the step; 상기 설정된 플래그로부터 록업클러치의 직결이 이루어지면 엔진 연료 컷을 제어한 후 모터 제어기가 차량 제어기에서 출력하는 회생발전의 제어신호에 따라 회생 발전을 진행하는 단계; 를 포함하여 진행함을 특징으로 하는 차량의 엔진 제어방법.Performing regenerative power generation according to the regenerative power control signal output from the vehicle controller after controlling the engine fuel cut when the lock-up clutch is directly connected to the set flag; Engine control method of a vehicle comprising a progress. 제 2 항에 있어서, 상기 터빈 회전수와 엔진 회전수의 슬립상태가 일정 수준 이하이면 토크 컨버터 클러치를 부드럽게 직결하도록 일정시간동안 엔진 회전수를 일정하게 유지하는 단계; 를 더 포함하는 것을 특징으로 하는 차량의 엔진 제어방법.The method of claim 2, further comprising: maintaining a constant engine speed for a predetermined time to smoothly connect the torque converter clutch when the turbine speed and the engine speed are in a slip state below a predetermined level; Engine control method of a vehicle further comprising a.
KR1020060125858A 2006-12-11 2006-12-11 Engine control device for car and method thereof KR20080053836A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906885B1 (en) * 2007-09-18 2009-07-08 현대자동차주식회사 Improving method of fuel efficiency for an automatic transmition vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906885B1 (en) * 2007-09-18 2009-07-08 현대자동차주식회사 Improving method of fuel efficiency for an automatic transmition vehicle

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