KR100207194B1 - Device of measuring the number of operation for an abs system - Google Patents

Device of measuring the number of operation for an abs system Download PDF

Info

Publication number
KR100207194B1
KR100207194B1 KR1019950055271A KR19950055271A KR100207194B1 KR 100207194 B1 KR100207194 B1 KR 100207194B1 KR 1019950055271 A KR1019950055271 A KR 1019950055271A KR 19950055271 A KR19950055271 A KR 19950055271A KR 100207194 B1 KR100207194 B1 KR 100207194B1
Authority
KR
South Korea
Prior art keywords
abs
control unit
relay
modulator
abs system
Prior art date
Application number
KR1019950055271A
Other languages
Korean (ko)
Other versions
KR970040581A (en
Inventor
곽상도
Original Assignee
정몽규
현대자동차주식회사
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 정몽규, 현대자동차주식회사 filed Critical 정몽규
Priority to KR1019950055271A priority Critical patent/KR100207194B1/en
Publication of KR970040581A publication Critical patent/KR970040581A/en
Application granted granted Critical
Publication of KR100207194B1 publication Critical patent/KR100207194B1/en

Links

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
    • B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
    • B60T8/1761—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure
    • B60T8/17616—Microprocessor-based systems
    • 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
    • B60T8/34—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 having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—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 having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • 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
    • B60T2270/10—ABS control systems
    • 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
    • B60Y2400/303—Speed sensors
    • 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
    • B60Y2400/81—Braking systems
    • 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
    • B60Y2400/92—Driver displays

Abstract

본 발명은 자동차의 주행중에 자동차의 조향력을 유지하고 제동거리를 단축시키는 안티록 브레이크 시스템의 작동 횟수를 카운트하여 외부에 표표시할 수 있는 안티록 브레이크 시스템의 작동 횟수 측정장치에 관한 것으로, 본 발명은 ABS시스템의 동작제어부인 ABS전자제어유니트와 ABS시스템의 구동부인 모듈레이터의 동작시 발생되는 각각의 신호를 카운터부가 각각 카운터하여 ABS시스템의 동작시 정확한 작동횟수를 카운트하여 디스플레이부에 표시함으로써 운전자는 디스플레이부의 카운터 값을 확인하여 정확한 ABS시스템의 작동횟수를 알 수 있게 된다.The present invention relates to an apparatus for measuring the number of operations of an anti-lock brake system that can count the number of operations of the anti-lock brake system that maintains the steering force of the vehicle and shortens the braking distance while driving the vehicle. The counter counters each signal generated during the operation of the ABS electronic control unit, which is the operation control unit of the ABS system, and the modulator, which is the driving unit of the ABS system, and counts and displays the correct number of operations during the operation of the ABS system. By checking the counter value on the display, you can see the exact number of operation of the ABS system.

Description

안티록 브레이크 시스템의 작동 횟수 측정장치Device for measuring the number of times of antilock brake system

제1도는 일반적인 ABS시스템의 구성을 나타낸 블럭회로도.1 is a block circuit diagram showing the configuration of a general ABS system.

제2도는 본 발명 시스템을 설명하기 위한 개략적인 회로도.2 is a schematic circuit diagram illustrating a system of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : ABS 전자제어 유니트 20 : 모듈레이터10 ABS electronic control unit 20 Modulator

30 : 제 1 릴레이 35 : 제 2 릴레이30: first relay 35: second relay

40 : 카운터부 45 : 디스플레이부40: counter portion 45: display portion

본 발명은 안티록 브레이크 시스템에 관한 것으로, 보다 상세하게는 자동차의 주행중에 자동차의 조향력을 유지하고 제동거리를 단축시키는 안티록브레이크 시스템의 작동횟수를 카운트하여 외부에 표시할 수 있는 안티록 브레이크 시스템의 작동 횟수 측정장치에 관한 것이다.The present invention relates to an anti-lock brake system, and more particularly, to an anti-lock brake system capable of counting the number of times of operation of an anti-lock brake system that maintains the steering force of the vehicle and shortens the braking distance while driving the vehicle. It relates to a device for measuring the number of times of operation.

일반적으로 차량에는 주행중에 운전자의 브레이크 페달 조작시점부터 완전히 정지하는 지점까지를 제동거리로 나타내는데, 이 제동거리는 차량의 주행속도에 따라 달라지게 되며, 또한 고속주행중 전방의 위험요소의 발생에 의해 급브레이크를 작동시키게 되면 조향력이 상실되어 주행차선을 이탈하여 다른 차량과 충돌을 하거나 차량이 전복되게 된다.In general, the vehicle represents the braking distance from the time of the driver's brake pedal operation to the point of complete stopping while driving, and this braking distance varies depending on the driving speed of the vehicle, and also a sudden brake may occur due to the occurrence of a risk factor ahead during the high-speed driving. If you operate the steering force is lost, you will leave the driving lane to collide with other vehicles or to overturn the vehicle.

따라서, 이러한 제동거리를 최대한 단축시키면서 동시에 조향력을 계속 유지할 수 있도록 하기 위하여 최근에 차량에 안티록브레이크시스템(이하, ABS 시스템이라 함)을 장착하여 사용하고 있다.Therefore, in order to keep the braking distance as much as possible and to maintain the steering force at the same time, the anti-lock brake system (hereinafter referred to as ABS system) has recently been used in vehicles.

이러한 ABS시스템을 제 1도를 참고로 하여 살펴보면, 차량의 속도를 검출하는 차량속도감지센서(70)와, 상기 차량의 바퀴가 노면과 접촉될 경우 그 미끄러지는 정도즉, 슬립율(slip rate)을 측정하는 슬립을 감지센서(71)와, 상기 차량속도감지센서(70)및 슬립율 감지센서(71)들에 의해 검출된 검출데이터 기준값을 근거로 판단하여 ABS 제동제어신호를 출력하는 ABS 전자제어유니트(72)와, 상기 ABS 전자제어유니트(72)의 A8S 제동제어신호에 따라 브레이크조작부(73)의 동작을 제어하는 모듈레이터(74)로 이루어졌다.Referring to the ABS system with reference to FIG. 1, when the vehicle speed sensor 70 detects the speed of the vehicle and the wheels of the vehicle come into contact with the road surface, the slippage rate is reduced. ABS to output the ABS brake control signal by judging the slip for measuring the slip based on the detection sensor 71 and the detection data reference value detected by the vehicle speed detection sensor 70 and the slip rate detection sensor 71. The control unit 72, and the modulator 74 for controlling the operation of the brake control unit 73 in accordance with the A8S braking control signal of the ABS electronic control unit 72.

한편, 상기와 같은 구성으로 된 종래 A8S 시스템의 동작을 살펴보면, 먼저, 차량을 운행하게 될 경우 차량속도감지센서(70)와 슬립율감지센서(71)가 동작을 하게되어 차량속도와 바퀴의 슬립율을 체킹하게 된다.On the other hand, looking at the operation of the conventional A8S system configured as described above, first, when driving the vehicle, the vehicle speed sensor 70 and the slip rate detection sensor 71 is operated to slip the vehicle speed and wheels Check the rate.

그리고 이 센서(70,71)들에 의해 검출된 차량속도와 바퀴의 슬립율에 대한 데이터는 ABS 전자제어 유니트(72)로 입력되어 기 설정되어 있는 기준값(thresin hold)에 따라 비교판단하게 되는데, 이때, 만약 바퀴의 슬립율과 차량속도가 기준값보다 클 경우는 차량이 위험한 상태이므로 ABS 전자 제어 유니트(72)가 ABS 제동제어신호를 출력하게 된다.And the data on the vehicle speed and the slip ratio of the wheel detected by the sensors (70, 71) is input to the ABS electronic control unit 72 to be compared according to the preset threshold (thresin hold), In this case, if the slip ratio of the wheel and the vehicle speed are greater than the reference value, the vehicle is in a dangerous state, and the ABS electronic control unit 72 outputs an ABS braking control signal.

따라서, 모듈레이터(74)가 이 ABS 제동제어신호에 따라 브레이크 조작부(73)를 구동시켜 안전한 제동동작을 실행하게 된다. 그러나, 상기와 같은 종래 ABS 시스템 에서 ABS시스템의 사용정도를 운전자가 알 수 있는 방법이 없어 ABS시스템의 정비시기를 정확히 알지못하게 되므로 신뢰성이 떨어지며, 이에따라 ABS시스템의 정밀성도저하되게 되는 문제점이 있었다.Therefore, the modulator 74 drives the brake operation unit 73 according to this ABS braking control signal to execute a safe braking operation. However, since there is no way for the driver to know the use of the ABS system in the conventional ABS system as described above, since the maintenance time of the ABS system is not known accurately, reliability is lowered, and accordingly, the precision of the ABS system is also degraded.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 본 발명의 목적은 자동차의 주행중 작동시키는 ABS시스템의 작동횟수를 감지하여 카운터할 수 있는 카운터수단을 제공하는데 있다.Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a counter means that can detect and count the number of times of operation of the ABS system to operate while driving the vehicle.

상기 목적을 달성하기 위한 본 발명은 ABS시스템의 동작제어부와 ABS시스템의 구동부로 부터 각각 인가되는 신호에 따라 ABS시스템의 작동횟수를 카운터부에서 카운터함으로써 정확한 ABS시스템의 작동횟수를 운전자가 신속하고 정확하게 파악할 수 있도록 하는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a fast and accurate operation frequency of ABS system by counting the number of times of operation of the ABS system in the counter according to the signals applied from the operation control unit of the ABS system and the driving unit of the ABS system. It is characterized by being able to grasp.

이하 첨부된 도면을 참조하여 본 발명을 상세히 설명하면 다음과 같다 제2도는 본 발명에 따른 개략적인 블럭 회로도를 나타낸 것으로써, 본 발명은 운전자가 ABS시스템을 작동시킬 때 차량속도감지센서및 슬립율 감지센서들에 의해 검출된 검출데이터 기준값을 근거로 판단하여 ABS 제동제어신호를 출력하는 ABS 전자제어유니트(10)와, 상기 ABS 전자제어유니트(10)의 ABS 제동제어신호에 따라 브레이크조작부(25)의 동작을 제어하는 모듈레이터(74)와, 상기 ABS 전자제어유니트(10)에 접속되며 ABS 전자제어유니트(10)로 부터 인가되는 하이신호에 의해 동작하는 제 1 릴레이(30)와, 상기 모듈레이터(20)에 접속되며 모듈레이터(20)로 부터 인가되는 하이신호에 의해 동작하는 제 2 릴레이(35)와, 상기 제 1 릴레이(30) 및 제 2 릴레이(35)에 접속되며제 1 릴레이(30)와 제 2 릴레이(35)로 부터 각각 인가되는 신호의 횟수를 카운트하므로서 ABS시스템의 작동횟수를 산출하여 디스플레이부(45)에 표시하는 카운터부(40)로 이루어 진다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 2 shows a schematic block circuit diagram according to the present invention. The present invention provides a vehicle speed sensor and a slip ratio when a driver operates an ABS system. The brake control unit 25 according to the ABS electronic control unit 10 for outputting the ABS braking control signal based on the detection data reference value detected by the detection sensors and the ABS braking control signal of the ABS electronic control unit 10. Modulator 74 for controlling the operation of the control panel, the first relay 30 connected to the ABS electronic control unit 10 and operated by a high signal applied from the ABS electronic control unit 10, and the modulator. A second relay 35 connected to the second relay 35 and operated by a high signal applied from the modulator 20, and connected to the first relay 30 and the second relay 35 and connected to the first relay 30; ) And the second Ray 35 hameuroseo the frequency of the signal applied respectively from the counting is done by the counter section 40 to be displayed on the display unit 45 to calculate the operation number of the ABS system.

이와같이 이루어진 본 발명은 운전자가 고속주행중 전방에서 위험이 발생하여 ABS시스템을 작동시키게 되면 ABS전자제어유니트(10)에서 차량속도감지센서 및 슬립율 감지센서로 부터 인가되는 신호를 근거로 비교판단한뒤 모듈레이터(20)에 ABS 제동제어신호를 인가하게 된다.The present invention made as described above is a modulator after the driver makes a risk in the front of the high-speed driving to operate the ABS system based on the signal from the vehicle speed sensor and the slip rate sensor in the ABS electronic control unit 10 and then modulator ABS braking control signal is applied to the (20).

상기 ABS전자제어유니트(10)로 부터 ABS제동제어신호가 모듈레이터(20)에 발생되면 동시에 제1 릴레이(30)에도 신호가 인가되어 제 1 릴레이(30)를 온절환시키고, 상기 모듈레이터(20)는 인가된 ABS제동제어신호에 의해 브레이크조작부(25)를작동시켜 제동장치를 작동시키게 되며, 상기 모듈레이터(20)가 브레이크조작부(25)에신호를 인가하게 되면 동시에 제 2 릴레이(35)에도 신호가 인가되어 제 2 릴레이(35)가 온절환된다.When the ABS braking control signal is generated from the ABS electronic control unit 10 to the modulator 20, a signal is also applied to the first relay 30 to switch the first relay 30 on and the modulator 20. The brake is operated by the brake control unit 25 by the applied ABS brake control signal, and when the modulator 20 applies a signal to the brake control unit 25, a signal is also applied to the second relay 35 at the same time. Is applied to switch the second relay 35 on.

상기 제 1 릴레이(30)및 제 2 릴레이(35)가 온절환되면 배터리(50)로 부터 제릴레이(30)및 제 2 릴레이(35)를 각각 통하여 카운터부(40)에 인가되며, 상기 카운터는 제 1 릴레이(30)와 제 2 릴레이(35)로 부터 각각 인가되는 신호에 의해 작동하여인 가된 신호의 횟수를 카운트하게 된다.When the first relay 30 and the second relay 35 are switched on, they are applied from the battery 50 to the counter unit 40 through the relay 30 and the second relay 35, respectively. Is operated by a signal applied from each of the first relay 30 and the second relay 35 to count the number of applied signals.

상기 카운터부(40)에 의해 카운터된 카운터 값은 디스플레이부(45)를 통해 외부에 표시되고, 운전자는 디스플레이부(45)에 표시된 수치를 확인함으로써 정확한 AB S시스템의 작동횟수를 파악할 수 있게 된다.The counter value counted by the counter unit 40 is displayed externally through the display unit 45, and the driver can determine the correct number of times of operation of the AB S system by checking the numerical value displayed on the display unit 45. .

이상 설명에서와 같이 본 발명은 ABS시스템의 동작제어부인 ABS전자제어 유니트와 ABS시스템의 구동부인 모듈레이터의 동작시 발생되는 각각의 신호를 카운터부가 각각 카운터하여 ABS시스템의 동작시 정확한 작동횟수를 카운트하여 디스플레이부에 표시함으로써 운전자는 디스플레이부의 카운터 값을 확인하여 정확한 ABS시스템의 작동횟수를 알 수 있게 된다.As described above, according to the present invention, the counter unit counters each signal generated during the operation of the ABS electronic control unit, which is the operation control unit of the ABS system, and the modulator, which is the driving unit of the ABS system, to count the exact number of times of operation of the ABS system. By displaying on the display, the operator can check the counter value on the display to know the exact number of operation of the ABS system.

Claims (1)

운전자가 ABS시스템을 작동시킬때 차량속도감지센서및 슬립율 감지센서들에 의해 검출된 검출데이터 기준값을 근거로 판단하여 ABS 제동제어신호를 출력하는 ABS 전 자제어유니트(10)와, 상기 ABS 전자제어유니트(10)의 ABS 제동제어신호에 따라 브레이크조작부(25)의 동작을 제어하는 모듈레이터(74)와, 상기 ABS 전자 제어유니트(10)에 접속되며 A8S 전자제어유니트(10)로 부터 인가되는 하이신호에 의해 동작하는 제 1 릴레이(30)와, 상기 모듈레이터(20)에 접속되며 모듈레이터(20)로 부터 인가되는 하이신호에 의해 동작하는 제 2 릴레이(35)와, 상기 제 1 릴레이(30)및 제 2 릴레이(35)에 접속되며 제 1 릴레이(30)와 제 2 릴레이(35)로 부터 각각 인가되는 신호의 횟수를 카운트하므로써 ABS시스템의 작동횟수를 산출하여 디스플레이부(45)에 표시하는 카운터부(40)로 이루어진 것을 특징으로 하는 안티록 브레이크 시스템의 작동 횟수 측정장치.The ABS electronic control unit 10 which outputs an ABS brake control signal based on the detection data reference value detected by the vehicle speed sensor and the slip rate sensor when the driver operates the ABS system, and the ABS electronics. The modulator 74 controls the operation of the brake control unit 25 according to the ABS braking control signal of the control unit 10, and is connected to the ABS electronic control unit 10 and applied from the A8S electronic control unit 10. A first relay 30 operated by a high signal, a second relay 35 connected to the modulator 20 and operated by a high signal applied from the modulator 20, and the first relay 30; And the number of signals applied from the first relay 30 and the second relay 35, respectively, are calculated and displayed on the display unit 45 by counting the number of times of operation of the ABS system. It consists of the counter part 40 The anti-lock activation frequency measurement device of the brake system, characterized in that binary.
KR1019950055271A 1995-12-23 1995-12-23 Device of measuring the number of operation for an abs system KR100207194B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950055271A KR100207194B1 (en) 1995-12-23 1995-12-23 Device of measuring the number of operation for an abs system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950055271A KR100207194B1 (en) 1995-12-23 1995-12-23 Device of measuring the number of operation for an abs system

Publications (2)

Publication Number Publication Date
KR970040581A KR970040581A (en) 1997-07-24
KR100207194B1 true KR100207194B1 (en) 1999-07-15

Family

ID=19443678

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950055271A KR100207194B1 (en) 1995-12-23 1995-12-23 Device of measuring the number of operation for an abs system

Country Status (1)

Country Link
KR (1) KR100207194B1 (en)

Also Published As

Publication number Publication date
KR970040581A (en) 1997-07-24

Similar Documents

Publication Publication Date Title
US5591906A (en) Tire pressure drop detecting device and method
US6577941B2 (en) Apparatus and method for determining condition of road surface
EP0193335B2 (en) Detection of abnormality for rotational speed sensor
CA2110964C (en) Method and device for detecting a deflated tire
EP0656268B1 (en) Apparatus for and method of detecting decrease of air pressure in tire
US3581277A (en) Tire inflation monitory system
EP0826525A2 (en) Wheel rotational velocity signal processing apparatus used for detection of reduction in tire air pressure
EP0475952B1 (en) Method of calibrating vehicle speed signals
JP3515040B2 (en) Road surface friction coefficient determination method
JPH08509442A (en) Circuit configuration for adjusting and evaluating wheel sensor signals
KR100207194B1 (en) Device of measuring the number of operation for an abs system
JP3535076B2 (en) Road surface friction coefficient determining apparatus and method
JP4006038B2 (en) A visual display of the operating state of an automobile brake control system.
ES8500140A1 (en) Device for detection of tyre under-inflation as well as for gauging the kinetic condition of a vehicle and a vehicle wheel.
GB2368649A (en) Rough road detector
JP2002362345A (en) Road surface condition determining device and method and determining program of road surface condition
KR100203488B1 (en) Automatic car-driving system
KR0121742B1 (en) A.b.s control method
JP3295977B2 (en) Tire pressure drop detector
JPH04244463A (en) Estimating method for car body speed of automobile
KR100337336B1 (en) Apparatus for measuring direction and velocity for rotating members
JPH11190741A (en) Method for converting output value of g sensor into acceleration/deceleration of vehicle and method for detecting abnormality of g sensor
KR100311154B1 (en) Abs controller and method thereof
KR100254224B1 (en) Anti-lock brake system of a car
KR970007728B1 (en) Device and method for a.b.s. of an automobile

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee