KR20120117405A - Apparatus and method controlling brake power using car - Google Patents

Apparatus and method controlling brake power using car Download PDF

Info

Publication number
KR20120117405A
KR20120117405A KR1020110035145A KR20110035145A KR20120117405A KR 20120117405 A KR20120117405 A KR 20120117405A KR 1020110035145 A KR1020110035145 A KR 1020110035145A KR 20110035145 A KR20110035145 A KR 20110035145A KR 20120117405 A KR20120117405 A KR 20120117405A
Authority
KR
South Korea
Prior art keywords
vehicle
braking force
emb
ewb
front wheel
Prior art date
Application number
KR1020110035145A
Other languages
Korean (ko)
Other versions
KR101894382B1 (en
Inventor
김종성
Original Assignee
현대모비스 주식회사
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 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020110035145A priority Critical patent/KR101894382B1/en
Priority to CN201210099034.1A priority patent/CN102729964B/en
Publication of KR20120117405A publication Critical patent/KR20120117405A/en
Application granted granted Critical
Publication of KR101894382B1 publication Critical patent/KR101894382B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/58—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration responsive to speed and another condition or to plural speed conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/83—Control features of electronic wedge brake [EWB]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/302—Temperature sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

PURPOSE: An apparatus and a method controlling brake force for a vehicle are provided to minimize the energy consumption of a vehicle. CONSTITUTION: An apparatus controlling brake force for a vehicle comprises an outside air temperature sensor(110) and an ECU(Electronic Control Unit)(120). The manipulation of a driver is detected through an electronic pedal(130) and then the ECU determines whether measured outside temperature is higher than a predetermined reference temperature. When the outside temperature is higher than the reference temperature, the ECU controls an EWB(Electro-Wedge Brake)(140) and an EMB(Electro-Mechanical Brake)(150) by controlling the braking force of a front wheel and a rear wheel. [Reference numerals] (110) Outside air temperature sensor; (130) Electronic pedal

Description

차량용 제동력 제어 장치 및 방법{Apparatus And Method Controlling Brake Power Using Car}Apparatus And Method Controlling Brake Power Using Car}

본 발명은 제동력 제어 장치 및 방법에 관한 것으로서, 보다 구체적으로는 차량의 전륜 및 후륜 제동력을 분배하는 장치 및 방법에 관한 것이다.The present invention relates to a braking force control device and method, and more particularly to a device and method for distributing the front and rear wheel braking force of a vehicle.

종래의 전동식 제동장치는 도 1에 도시된 바와 같이, 유압을 사용하지 않고 운전자의 제동의지를 전자 페달에 장착되어 있는 센서에 의해 파악하고, 이 센서 신호를 중앙 ECU에 송부하여 각 필요 제동량을 산출한 다음 각각의 휠에 장착되어 있는 전동식 브레이크를 작동시켜 제동력을 발생시킨다.In the conventional electric brake system, as shown in FIG. 1, without using hydraulic pressure, the driver's braking intention is grasped by a sensor mounted on the electronic pedal, and the sensor signal is sent to the central ECU to provide each required braking amount. After the calculation, the brakes are generated by operating the electric brakes mounted on each wheel.

이와 유사한 시스템으로 전동식으로 구동하지 않고 모터/펌프 구조와 축압기(Accumulator)를 이용하여 미리 저장된 유압을 밸브에 의해 제어하는 EHB(전자 유압식 브레이크, Electro-hydraulic brake)시스템이 있다.A similar system is the EHB (Electro-hydraulic brake) system, which uses a motor / pump structure and an accumulator to control pre-stored hydraulic pressure by means of a valve, instead of driving it electrically.

위와 같은 시스템은 일반적으로 회생제동과 같은 협조제어를 필요로 하는 상황이 아닐 경우 제동력을 최대한 이상제동곡선에 가깝게 또는 일반 유압 제동장치의 차량 제동 성능에 가깝게 튜닝하여 제동력을 발생시킨다.In general, such a system generates a braking force by tuning the braking force as close to the ideal braking curve as possible or close to the vehicle braking performance of a general hydraulic braking system, unless the situation requires cooperative control such as regenerative braking.

한편, EMB(전자 기계식 브레이크, Electro-mechanical brake)는 스크류 직접 가압방식의 스크류 타입 EMB와 웨지를 이용한 웨지타입 EMB로 나눌 수 있다.On the other hand, EMB (electro-mechanical brake) can be divided into screw type EMB of screw direct pressurization and wedge type EMB using wedge.

스크류 타입 EMB는 스크류에 연결된 피스톤을 통해 패드를 디스크에 가압하는 방식이며, 웨지타입 EMB는 스크류를 통한 웨지의 힘과 이에 의해 발생되는 제동 마찰력으로 다시 웨지를 밀어넣는 자기배력(Self-reinforcing)을 이용하여 클램핑력을 얻는 방식으로 EWB(Electro-wedge brake)라 부르고, 자기배력으로 액추에이터의 구동파워 감소, 시스템 효율 증대의 장점이 있다.The screw type EMB presses the pads onto the disc through a piston connected to the screw. The wedge type EMB uses a self-reinforcing force that pushes the wedge back into the force of the wedge through the screw and the resulting braking friction. It is called EWB (Electro-wedge brake) in the way of obtaining clamping force by using, and it has the advantage of reducing the driving power of the actuator by self-powering and increasing the system efficiency.

즉, EWB는 자기 배력(Self-reinforcing) 효과에 의해 필요 소모 에너지가 0에 가까운 반면, EMB는 필요한 에너지만큼 입력 에너지를 필요로 한다.In other words, the EWB consumes energy close to zero due to the self-reinforcing effect, whereas the EMB needs input energy as much as the energy required.

따라서, 전륜 제동장치에 적은 에너지로 큰 제동력을 발생시킬 수 있는 EWB를 적용하는 게 유리하지만 후륜과 같은 경우는 주차 제동력기능을 겸해야 하기 때문에 일반적인 형태의 EMB를 적용하는 게 유리하며, 메커니즘 또한 EWB보다 일반적인 EMB가 단순하므로, 제동력 튜닝을 위해 전륜을 EWB로, 후륜을 EMB로 구성하는 것이 좋다.Therefore, it is advantageous to apply EWB which can generate big braking force with less energy in front wheel braking system. However, in case of rear wheel, it is advantageous to apply general type of EMB because it also has to function as parking braking force. Since the more general EMB is simple, it is better to configure the front wheels as EWB and the rear wheels as EMB for braking force tuning.

그러나, 차량의 전륜을 EWB로, 후륜을 EMB로 구성할 경우 에너지 소모가 적은 EWB에 제동력을 집중하지 못하여 최적화된 제동력 튜닝이 어렵다는 문제점이 있다.However, when the front wheel of the vehicle is configured as an EWB, and the rear wheel is configured as an EMB, it is difficult to optimize the braking force because the braking force cannot be concentrated on the EWB which consumes less energy.

본 발명은 상기와 같은 문제점을 감안하여 창출한 것으로서, 차량의 전륜, 후륜 제동력을 효과적으로 배분하여 소모 에너지를 최소화시키는 제동력 제어 장치 및 방법을 제공하는 데 그 목적이 있다.The present invention has been made in view of the above problems, and an object thereof is to provide a braking force control device and method for effectively allocating front and rear wheel braking force of a vehicle to minimize energy consumption.

즉, 본 발명은 전륜에 EWB, 후륜에 EMB가 구비된 차량의 제동력을 EWB에 집중시켜 소모 에너지가 최소화될 수 있도록 하는 것을 목적으로 한다.That is, the present invention aims to minimize the energy consumption by concentrating the braking force of the vehicle equipped with the EWB on the front wheel and the EMB on the rear wheel to the EWB.

전술한 목적을 달성하기 위하여, 본 발명의 일면에 따른 차량의 전자페달로부터 운전자의 제동의지가 검출되면, 전륜에 EWB(Electro-wedge brake), 후륜에 EMB(Electro-mechanical brake)가 구비된 상기 차량의 제동력을 제어하는 장치는 상기 차량의 외기 온도를 측정하는 외기 온도센서; 및 측정된 상기 차량의 외기 온도가 기설정된 온도보다 높은지 여부를 판단하고, 판단결과 상기 차량의 외기 온도가 기설정된 온도보다 높으면, 상기 감가속도에 따라 상기 전륜과 후륜의 제동력을 결정하여 상기 EWB와 상기 EMB를 제어하는 ECU를 포함한다.In order to achieve the above object, when the driver's braking intention is detected from the electronic pedal of the vehicle according to an aspect of the present invention, the EWB (Electro-wedge brake) on the front wheel, EMB (Electro-mechanical brake) is provided on the rear wheel An apparatus for controlling a braking force of a vehicle may include: an outside air temperature sensor measuring the outside air temperature of the vehicle; And determining whether the measured outside air temperature of the vehicle is higher than a preset temperature. If the outside air temperature of the vehicle is higher than a preset temperature, the braking force of the front wheel and the rear wheel is determined according to the deceleration speed to determine the braking force of the vehicle. ECU to control the EMB.

본 발명의 다른 면에 따른 전륜에 EWB(Electro-wedge brake), 후륜에 EMB(Electro-mechanical brake)가 구비된 차량의 제동력을 제어하는 방법은 상기 차량의 전자페달로부터 운전자의 제동의지가 검출되고, 감지된 상기 차량의 외기 온도가 기설정된 온도보다 높으면, 상기 차량의 감가속도가 기설정된 속도보다 낮은지 여부를 판단하는 단계; 판단결과, 상기 감가속도가 상기 기설정된 속도보다 낮을 경우, 상기 차량의 전륜만 제동하도록 상기 전륜과 후륜의 제동력을 결정하는 단계; 및 결정된 상기 제동력에 따라 상기 전륜의 제동력과 상기 후륜의 제동력을 각각 생성하도록 상기 EWB와 상기 EMB를 제어하는 단계를 포함한다.According to another aspect of the present invention, a method of controlling braking force of a vehicle equipped with an electro-wedge brake (EWB) on the front wheel and an electro-mechanical brake (EMB) on the rear wheel may include detecting a driver's braking intention from an electronic pedal of the vehicle. If the detected outside temperature of the vehicle is higher than a preset temperature, determining whether the deceleration speed of the vehicle is lower than a preset speed; Determining the braking force of the front wheel and the rear wheel to brake only the front wheel of the vehicle when the deceleration speed is lower than the preset speed; And controlling the EWB and the EMB to generate the braking force of the front wheel and the braking force of the rear wheel, respectively, according to the determined braking force.

본 발명에 따르면, 소모 에너지를 최소화할 수 있는 효과가 있다.According to the present invention, there is an effect that can minimize the energy consumption.

도 1은 종래의 전동식 제동장치를 설명하기 위한 블럭도.
도 2는 본 발명의 일 실시예에 따른 차량용 제동력 제어 장치를 설명하기 위한 블럭도.
도 3은 본 발명의 일 실시예에 따른 차량용 제동력 제어 방법을 설명하기 위한 흐름도.1 is a block diagram for explaining a conventional electric braking device.
Figure 2 is a block diagram for explaining a braking force control device for a vehicle according to an embodiment of the present invention.
Figure 3 is a flow chart for explaining a braking force control method for a vehicle according to an embodiment of the present invention.

본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 용이하게 이해할 수 있도록 제공되는 것이며, 본 발명은 청구항의 기재에 의해 정의된다. 한편, 본 명세서에서 사용된 용어는 실시예들을 설명하기 위한 것이며 본 발명을 제한하고자 하는 것은 아니다. 본 명세서에서, 단수형은 문구에서 특별히 언급하지 않는 한 복수형도 포함한다. 명세서에서 사용되는 "포함한다(comprises)" 또는 "포함하는(comprising)"은 언급된 구성요소, 단계, 동작 및/또는 소자 이외의 하나 이상의 다른 구성요소, 단계, 동작 및/또는 소자의 존재 또는 추가를 배제하지 않는다.Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. And is intended to enable a person skilled in the art to readily understand the scope of the invention, and the invention is defined by the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that " comprises, " or "comprising," as used herein, means the presence or absence of one or more other components, steps, operations, and / Do not exclude the addition.

이하, 도 2를 참조하여 본 발명의 일 실시예에 따른 차량용 제동력 제어 장치를 설명한다. 도 2는 본 발명의 일 실시예에 따른 차량용 제동력 제어 장치를 설명하기 위한 블럭도이다.Hereinafter, a braking force control apparatus for a vehicle according to an exemplary embodiment of the present invention will be described with reference to FIG. 2. 2 is a block diagram illustrating a braking force control apparatus for a vehicle according to an exemplary embodiment of the present invention.

도 2에 도시된 바와 같이, 본 발명의 차량용 제동 장치는 외기 온도센서(110), ECU(120), 전자페달(130), EWB(Electro-wedge brake, 140) 및 EMB(Electro-mechanical brake, 150)를 포함한다.As shown in FIG. 2, the brake device for a vehicle according to the present invention includes an outside air temperature sensor 110, an ECU 120, an electronic pedal 130, an electro-wedge brake 140, and an electro-mechanical brake, EMB. 150).

외기 온도센서(110)는 차량(100)의 외기 온도를 측정한다.The outside temperature sensor 110 measures the outside temperature of the vehicle 100.

ECU(120)는 전자페달(130)로부터 운전자의 제동의지가 검출되면, 외기 온도센서(110)에 의해 측정된 차량(100)의 외기 온도가 기설정된 온도보다 높은지 여부를 판단한다. When the driver's braking intention is detected from the electronic pedal 130, the ECU 120 determines whether the outside air temperature of the vehicle 100 measured by the outside air temperature sensor 110 is higher than a preset temperature.

예컨대, 전자페달(130)에 장착된 센서가 운전자의 제동의지를 검출하여 ECU(120)에 송신하고, ECU(120)는 전자페달(130)에 장착된 센서로부터 운전자의 제동의지를 수신하면 측정된 차량(100)의 외기 온도가 기설정된 온도보다 높은지 여부를 판단한다. For example, a sensor mounted on the electronic pedal 130 detects and transmits a driver's braking intention to the ECU 120, and the ECU 120 measures when the driver's braking intention is received from a sensor mounted on the electronic pedal 130. It is determined whether the outside air temperature of the vehicle 100 is higher than the preset temperature.

판단결과, 차량(100)의 외기 온도가 기설정된 온도보다 높으면, ECU(120)는 감가속도에 따라 차량(100)의 전륜과 후륜의 제동력을 결정하여 EWB(140)와 EMB(150)를 제어한다.As a result, when the outside air temperature of the vehicle 100 is higher than the preset temperature, the ECU 120 determines the braking force of the front wheel and the rear wheel of the vehicle 100 according to the deceleration speed to control the EWB 140 and the EMB 150. do.

여기서 차량의 외기온도를 측정하는 이유는 차량(100)의 외기온도가 영상일 경우, 노면이 얼어붙어 빙판이 될 경우가 드물기 때문에, 이러한 노면에서는 차량(100)의 전륜만 제동하더라도 ABS가 작동되거나 차량(100)이 미끄러질 확률은 낮다. 또한, 이러한 노면에서 감가속도가 기설정된 속도보다 낮을 경우, 차량(100)의 전륜만 제동하더라도 차량(100)을 안전하게 멈추게 할 수 있다. 즉, 차량(100)의 감가속도는 보통 1.2g를 넘지 않고(보통의 타이어와 노면의 마찰계수는 1.0이므로 차량의 감가속도는 1.0g을 넘지 못함), 게다가 운전자의 운전 습관이나 차량 주행에 관련된 통계자료를 통해 알 수 있듯이 0.3g 이하의 제동이 전체 제동의 90%이상을 차지하므로, 이러한 정보를 토대로 기설정된 속도를 설정하고 감가속도가 기설정된 속도보다 낮을 경우 차량(100)의 전륜만 제동하여 차량을 멈추게 하더라도 차량을 안정하게 정차시킬 수 있다.Here, the reason for measuring the outside temperature of the vehicle is that if the outside temperature of the vehicle 100 is an image, since the road surface is frozen and rarely becomes ice, in such a road surface, even if only the front wheels of the vehicle 100 are braked, The probability of the vehicle 100 slipping is low. In addition, when the deceleration is lower than the predetermined speed on such a road surface, even if only the front wheel of the vehicle 100 is braked, the vehicle 100 can be safely stopped. That is, the deceleration of the vehicle 100 usually does not exceed 1.2 g (the normal coefficient of friction between the tire and the road surface is 1.0, so the deceleration of the vehicle does not exceed 1.0 g). As can be seen from the statistical data, the braking of less than 0.3g occupies more than 90% of the total braking, so if the predetermined speed is set based on this information and the deceleration is lower than the predetermined speed, only the front wheel of the vehicle 100 is braked. Even if the vehicle is stopped, the vehicle can be stopped safely.

따라서, ECU(120)는 차량(100)의 외기 온도가 기설정된 온도보다 높으면, 감가속도가 기설정된 속도보다 낮은지 여부를 판단하고, 감가속도가 기설정된 속도보다 낮을 경우, 차량(100)의 전륜만 제동하도록 EWB(140)와 EMB(150)의 제동력을 결정한다. Accordingly, when the outside air temperature of the vehicle 100 is higher than the preset temperature, the ECU 120 determines whether the deceleration rate is lower than the preset speed, and when the deceleration rate is lower than the preset speed, The braking force of the EWB 140 and the EMB 150 is determined to brake only the front wheels.

그러나, 감가속도가 기설정된 속도보다 높거나 같을 경우, ECU(120)는 차량(100)의 전륜과 후륜을 제동하도록 감가속도를 근거로 EWB(140)와 EMB(150)의 제동력을 결정한다. However, when the deceleration is higher than or equal to the preset speed, the ECU 120 determines the braking force of the EWB 140 and the EMB 150 based on the deceleration to brake the front and rear wheels of the vehicle 100.

예컨대, 감가속도가 기설정된 속도보다 낮을 경우, ECU(120)는 전륜의 제동력을 100%로 결정하고, 후륜의 제동력을 0%로 결정하며, 감가속도가 기설정된 속도보다 같거나 높을 경우, 감가속도를 감안하여 전륜의 제동력을 100%보다 낮게 결정함으로써 전륜의 제동력 비중을 낮추고, 이에 반해 후륜의 제동력 비중을 높임으로써 차량을 안전하게 정지시킬 수 있다.For example, when the deceleration speed is lower than the predetermined speed, the ECU 120 determines the braking force of the front wheel as 100%, determines the braking force of the rear wheel as 0%, and when the deceleration speed is equal to or higher than the preset speed, deceleration In consideration of the speed, the braking force of the front wheels is determined to be lower than 100%, thereby reducing the proportion of the braking force of the front wheels, while increasing the proportion of the braking force of the rear wheels to safely stop the vehicle.

EWB(140)는 차량(100)의 전륜에 장착되고, 결정된 제동력에 따른 ECU(120)의 제어에 따라 전륜의 제동력을 생성한다.The EWB 140 is mounted on the front wheel of the vehicle 100 and generates a braking force of the front wheel according to the control of the ECU 120 according to the determined braking force.

EMB(150)는 차량(100)의 후륜에 장착되고, 결정된 제동력에 따른 ECU(120)의 제어에 따라 후륜의 제동력을 생성한다.The EMB 150 is mounted on the rear wheel of the vehicle 100 and generates a braking force of the rear wheel according to the control of the ECU 120 according to the determined braking force.

전술한 바와 같이, 외기 온도 감지를 통해 전륜에 장착된 EWB로만 차량을 제동함으로써 제동에 필요한 소모에너지를 최소화시킬 수 있다. 또한, 전륜에 제동력을 집중시켜 차량을 제동하는 방법을 회생제동시스템에 적용할 경우, 회생제동의 효율을 극대화시킬 수 있다. 즉, 전륜에 EWB가 장착되고 후륜에 EMB가 장착된 차량이 아니더라도 회생제동이 적용되는 모든 제동 시스템에 전륜에 제동력을 집중시켜 차량을 제동하는 방법을 확대 적용할 경우, 회생제동량을 극대화시키고 전기 에너지 회수를 증가시킬 수 있다. As described above, it is possible to minimize the energy consumption required for braking by braking the vehicle only with the EWB mounted on the front wheel through the sensing of outside temperature. In addition, when the method of braking the vehicle by concentrating the braking force on the front wheel is applied to the regenerative braking system, the efficiency of regenerative braking can be maximized. In other words, even if the vehicle is equipped with EWB on the front wheel and EMB on the rear wheel, the regenerative braking amount is maximized when the method of braking the vehicle by concentrating the braking force on the front wheel is applied to all the braking systems to which regenerative braking is applied. Energy recovery can be increased.

이상, 도 2를 참조하여 본 발명의 일 실시예에 따른 차량용 제동력 제어 장치를 설명하였고, 이하에서는 도 3을 참조하여 본 발명의 일 실시예에 따른 차량용 제동력 제어 방법을 설명한다. 도 3은 본 발명의 일 실시예에 따른 차량용 제동력 제어 방법을 설명하기 위한 흐름도이다.The vehicle braking force control device according to an embodiment of the present invention has been described above with reference to FIG. 2, and the vehicle braking force control method according to an embodiment of the present invention will now be described with reference to FIG. 3. 3 is a flowchart illustrating a vehicle braking force control method according to an embodiment of the present invention.

도 3에 도시된 바와 같이, 전륜에 EWB(140), 후륜에 EMB(150)가 구비된 차량(100)의 제동력을 제어하는 방법은 차량(100)의 전자페달로부터 운전자의 제동의지가 검출되면, 외기 온도센서(110)에 의해 감지된 차량(100)의 외기 온도가 기설정된 온도보다 높은지 여부를 판단한다(S300).As shown in FIG. 3, the method of controlling the braking force of the vehicle 100 provided with the EWB 140 at the front wheel and the EMB 150 at the rear wheel may include detecting a driver's braking intention from an electronic pedal of the vehicle 100. In operation S300, it is determined whether the outside air temperature of the vehicle 100 detected by the outside air temperature sensor 110 is higher than the preset temperature.

판단결과, 차량(100)의 외기 온도가 기설정된 온도보다 높으면, 차량의 감가속도가 기설정된 속도보다 낮은지 여부를 판단한다(S310).As a result of the determination, when the outside air temperature of the vehicle 100 is higher than the predetermined temperature, it is determined whether the deceleration speed of the vehicle is lower than the predetermined speed (S310).

판단결과, 차량(100)의 감가속도가 기설정된 속도보다 높거나 같을 경우, 감가속도에 따라 전륜과 후륜의 제동력을 결정한다(S320).As a result, when the deceleration speed of the vehicle 100 is higher than or equal to the preset speed, the braking force of the front wheel and the rear wheel is determined according to the deceleration speed (S320).

그러나, 판단결과, 감가속도가 기설정된 속도보다 낮을 경우, 차량(100)의 전륜만 제동하도록 전륜과 후륜의 제동력을 결정한다(S330).However, as a result of the determination, when the deceleration speed is lower than the predetermined speed, the braking force of the front wheel and the rear wheel is determined to brake only the front wheel of the vehicle 100 (S330).

결정된 제동력에 따라 전륜의 제동력과 후륜의 제동력을 각각 생성하도록 EWB(140)와 EMB(150)를 제어한다.The EWB 140 and the EMB 150 are controlled to generate the braking force of the front wheel and the braking force of the rear wheel, respectively, according to the determined braking force.

한편, 여기서는 차량의 외기 온도가 기설정된 온도보다 높은지 여부를 판단한 후 감가속도에 따라 전륜과 후륜의 제동력을 결정하는 구성을 취하였으나, 이러한 구성에 국한되지 않고 외기온도에 따라 판단하는 구성을 생략하고 단순히 감가속도가 기설정된 속도보다 낮은지 여부를 판단하여 그에 따라 전륜과 후륜의 제동력을 결정하는 구성을 취할 수 있음은 물론이다.On the other hand, in this case, after determining whether the outside temperature of the vehicle is higher than the predetermined temperature, the configuration of determining the braking force of the front wheel and the rear wheel according to the deceleration is taken, but not limited to this configuration, and the configuration to judge according to the outside temperature is omitted. Of course, it is possible to determine whether the deceleration speed is lower than the preset speed, and thus determine the braking force of the front and rear wheels.

이상 바람직한 실시예와 첨부도면을 참조하여 본 발명의 구성에 관해 구체적으로 설명하였으나, 이는 예시에 불과한 것으로 본 발명의 기술적 사상을 벗어나지 않는 범주내에서 여러 가지 변형이 가능함은 물론이다. 그러므로 본 발명의 범위는 설명된 실시예에 국한되어 정해져서는 안되며 후술하는 특허청구의 범위뿐만 아니라 이 특허청구의 범위와 균등한 것들에 의해 정해져야 한다.
Although the configuration of the present invention has been described in detail with reference to the preferred embodiments and the accompanying drawings, this is only an example, and various modifications are possible within the scope without departing from the spirit of the present invention. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

100 : 차량 110 : 외기 온도센서
120 : ECU 130 : 전자페달
140 : EWB 150 : EMB100: vehicle 110: outside temperature sensor
120: ECU 130: electronic pedal
140: EWB 150: EMB

Claims (6)

차량의 전자페달로부터 운전자의 제동의지가 검출되면, 전륜에 EWB(Electro-wedge brake), 후륜에 EMB(Electro-mechanical brake)가 구비된 상기 차량의 제동력을 제어하는 장치에 있어서,
상기 차량의 외기 온도를 측정하는 외기 온도센서; 및
측정된 상기 차량의 외기 온도가 기설정된 온도보다 높은지 여부를 판단하고, 판단결과 상기 차량의 외기 온도가 기설정된 온도보다 높으면, 상기 감가속도에 따라 상기 전륜과 후륜의 제동력을 결정하여 상기 EWB와 상기 EMB를 제어하는 ECU
를 포함하는 차량용 제동력 제어 장치.When the driver's braking intention is detected from the electronic pedal of the vehicle, the apparatus for controlling the braking force of the vehicle is provided with an electro-wedge brake (EWB) on the front wheel, and an electro-mechanical brake (EMB) on the rear wheel,
An outside air temperature sensor measuring outside air temperature of the vehicle; And
It is determined whether the measured outside air temperature of the vehicle is higher than a preset temperature. If the outside air temperature of the vehicle is higher than a predetermined temperature, the braking force of the front wheel and the rear wheel is determined according to the deceleration speed, and the EWB and the ECU controlling the EMB
Braking force control device for a vehicle comprising a. 제1항에 있어서,
상기 ECU는 상기 감가속도가 상기 기설정된 속도보다 낮을 경우, 상기 차량의 전륜만 제동하도록 상기 EWB와 상기 EMB의 제동력을 결정하는 것
인 차량용 제동력 제어 장치.The method of claim 1,
The ECU determines the braking force of the EWB and the EMB to brake only the front wheels of the vehicle when the deceleration is lower than the preset speed.
Vehicle braking force control device. 제1항에 있어서,
상기 ECU는 상기 감가속도가 상기 기설정된 속도보다 높거나 같을 경우, 상기 차량의 전륜과 후륜을 제동하도록 상기 감가속도를 근거로 상기 EWB와 상기 EMB의 제동력을 결정하는 것
인 차량용 제동력 제어 장치.The method of claim 1,
The ECU determines the braking force of the EWB and the EMB based on the deceleration to brake the front and rear wheels of the vehicle when the deceleration is higher than or equal to the preset speed.
Vehicle braking force control device. 제1항에 있어서,
상기 EWB와 상기 EMB는 결정된 상기 제동력에 따른 상기 ECU의 제어에 따라 각각 상기 전륜과 상기 후륜의 제동력을 생성하는 것
인 차량용 제동력 제어 장치.The method of claim 1,
The EWB and the EMB generate braking force of the front wheel and the rear wheel, respectively, under control of the ECU according to the determined braking force.
Vehicle braking force control device. 전륜에 EWB, 후륜에 EMB가 구비된 차량의 제동력을 제어하는 방법에 있어서,
상기 차량의 전자페달로부터 운전자의 제동의지가 검출되고, 감지된 상기 차량의 외기 온도가 기설정된 온도보다 높으면, 상기 차량의 감가속도가 기설정된 속도보다 낮은지 여부를 판단하는 단계;
판단결과, 상기 감가속도가 상기 기설정된 속도보다 낮을 경우, 상기 차량의 전륜만 제동하도록 상기 전륜과 후륜의 제동력을 결정하는 단계; 및
결정된 상기 제동력에 따라 상기 전륜의 제동력과 상기 후륜의 제동력을 각각 생성하도록 상기 EWB와 상기 EMB를 제어하는 단계
를 포함하는 차량용 제동력 제어 방법.In the method of controlling the braking force of a vehicle equipped with EWB on the front wheel, EMB on the rear wheel,
Determining whether the deceleration speed of the vehicle is lower than a preset speed when the driver's braking intention is detected from the electronic pedal of the vehicle and the detected outside temperature of the vehicle is higher than a preset temperature;
Determining the braking force of the front wheel and the rear wheel to brake only the front wheel of the vehicle when the deceleration speed is lower than the preset speed; And
Controlling the EWB and the EMB to generate the braking force of the front wheel and the braking force of the rear wheel, respectively, according to the determined braking force.
Braking force control method for a vehicle comprising a. 제5항에 있어서,
상기 판단결과, 상기 감가속도가 상기 기설정된 속도보다 높거나 같을 경우, 상기 감가속도에 따라 상기 전륜과 후륜의 제동력을 결정하는 단계를 더 포함하는 차량용 제동력 제어 방법.





The method of claim 5,
And determining the braking force of the front wheel and the rear wheel according to the deceleration speed when the deceleration speed is higher than or equal to the preset speed.





KR1020110035145A 2011-04-15 2011-04-15 Apparatus And Method Controlling Brake Power Using Car KR101894382B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020110035145A KR101894382B1 (en) 2011-04-15 2011-04-15 Apparatus And Method Controlling Brake Power Using Car
CN201210099034.1A CN102729964B (en) 2011-04-15 2012-04-06 Vehicle braking force controller and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110035145A KR101894382B1 (en) 2011-04-15 2011-04-15 Apparatus And Method Controlling Brake Power Using Car

Publications (2)

Publication Number Publication Date
KR20120117405A true KR20120117405A (en) 2012-10-24
KR101894382B1 KR101894382B1 (en) 2018-09-04

Family

ID=46986466

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110035145A KR101894382B1 (en) 2011-04-15 2011-04-15 Apparatus And Method Controlling Brake Power Using Car

Country Status (2)

Country Link
KR (1) KR101894382B1 (en)
CN (1) CN102729964B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116142154A (en) * 2023-04-21 2023-05-23 南京飞恩微电子有限公司 Hybrid brake-by-wire system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210043765A (en) 2019-10-11 2021-04-22 현대자동차주식회사 Electro-Mechanical Brake system with suspension control
CN110758366B (en) * 2019-10-31 2021-12-10 上海拿森汽车电子有限公司 Torque control method and device of electronic power-assisted brake system
KR20210156885A (en) 2020-06-17 2021-12-28 현대자동차주식회사 Control system when Brake-By-wire device
CN114954392B (en) * 2022-05-31 2023-07-18 中国第一汽车股份有限公司 Vehicle braking method, device, electronic equipment and storage medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020080874A (en) * 2001-04-18 2002-10-26 현대자동차주식회사 a stopping distance indicating apparatus for vehicles
US20050001479A1 (en) * 2003-06-18 2005-01-06 Takashi Watanabe Vehicle brake system for increasing friction coefficient
KR20060005228A (en) * 2004-07-12 2006-01-17 주식회사 만도 Anti-lock brake system and control method thereof
KR20100067240A (en) * 2008-12-11 2010-06-21 현대모비스 주식회사 Brake system having safe braking function

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH072448B2 (en) * 1986-01-13 1995-01-18 アイシン・エィ・ダブリュ株式会社 Four-wheel drive controller
JPH09175366A (en) * 1995-12-28 1997-07-08 Toyota Motor Corp Acceleration slip controller for vehicle
US8544966B2 (en) * 2008-01-17 2013-10-01 Advics Co., Ltd. Brake controller for vehicle and brake control method for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020080874A (en) * 2001-04-18 2002-10-26 현대자동차주식회사 a stopping distance indicating apparatus for vehicles
US20050001479A1 (en) * 2003-06-18 2005-01-06 Takashi Watanabe Vehicle brake system for increasing friction coefficient
KR20060005228A (en) * 2004-07-12 2006-01-17 주식회사 만도 Anti-lock brake system and control method thereof
KR20100067240A (en) * 2008-12-11 2010-06-21 현대모비스 주식회사 Brake system having safe braking function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116142154A (en) * 2023-04-21 2023-05-23 南京飞恩微电子有限公司 Hybrid brake-by-wire system

Also Published As

Publication number Publication date
CN102729964A (en) 2012-10-17
KR101894382B1 (en) 2018-09-04
CN102729964B (en) 2016-08-03

Similar Documents

Publication Publication Date Title
US20160272176A1 (en) Vehicle control apparatus and vehicle control system
US9327695B2 (en) Method and device for the electronic control of the brake force distribution according to the differential slip
US10000194B2 (en) Method, controller and system for monitoring brake operation
CN107225978B (en) Electric vehicle braking method and device and electric vehicle
JP2015533720A (en) Adaptive brake system and method
US20130134767A1 (en) Vehicle brake device and method of controlling vehicle brake device
KR20120117405A (en) Apparatus and method controlling brake power using car
KR101405189B1 (en) Braking system for hybrid vehicle and control method for the same
WO2017129092A1 (en) Auxiliary braking system for electric automobile and control method thereof, and electric automobile
WO2017050407A8 (en) Method for adjusting brake pressures of a motor vehicle, brake system for carrying out the method and motor vehicle comprising such a brake system
US9162657B2 (en) Automotive braking system
JP6530668B2 (en) Brake control device and brake system
US8180545B2 (en) Methods and systems for calibrating braking systems and controlling braking in vehicles
JP3747716B2 (en) Brake control device for vehicle
US20100286882A1 (en) Methods and systems for controlling braking in vehicles
KR101314773B1 (en) Method of estimating temperature for vehicle brake disk
KR101338450B1 (en) Active braking force assist control systen and control method thereof
JP6124123B2 (en) Regenerative brake control system
KR20180133134A (en) Method for detecting a error of caliper by using abs
KR101404088B1 (en) Fault detection method of brake pedal sensor
KR101159506B1 (en) Control method of electro-mechanical brake
KR101292607B1 (en) Control apparatus and method for electro-mechanical brake
KR20050019423A (en) Brake control system for vehicle
US9663074B2 (en) Method for operating a brake system in a stationary vehicle
JP2013180676A (en) Braking force control device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant