KR20110123017A - Electronic parking brake apparatus - Google Patents

Electronic parking brake apparatus Download PDF

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Publication number
KR20110123017A
KR20110123017A KR1020100042428A KR20100042428A KR20110123017A KR 20110123017 A KR20110123017 A KR 20110123017A KR 1020100042428 A KR1020100042428 A KR 1020100042428A KR 20100042428 A KR20100042428 A KR 20100042428A KR 20110123017 A KR20110123017 A KR 20110123017A
Authority
KR
South Korea
Prior art keywords
output gear
parking brake
gear
electronic parking
magnet
Prior art date
Application number
KR1020100042428A
Other languages
Korean (ko)
Inventor
정하민
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 KR1020100042428A priority Critical patent/KR20110123017A/en
Publication of KR20110123017A publication Critical patent/KR20110123017A/en

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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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/748—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on electro-magnetic brakes
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/10—Disposition of hand control
    • B60T7/107—Disposition of hand control with electrical power assistance
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/10—Disposition of hand control
    • B60T7/108—Disposition of hand control with mechanisms to take up slack in the linkage to the brakes
    • 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
    • B60T8/88—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
    • B60T8/885—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • 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
    • B60Y2400/301—Sensors for position or displacement
    • B60Y2400/3012—Sensors for position or displacement using Hall effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)

Abstract

The present invention accurately and precisely detects an operating state of an actuator driven by a motor and provides the signal to the controller without the conventional load sensor, thereby enabling proper and precise control of the electronic parking brake device. Of course, there is provided an electronic parking brake device that can reduce the volume, unit cost and weight of the actuator.

Description

Electronic Parking Brake Apparatus

The present invention relates to an electronic parking brake apparatus, and more particularly, to an operating state sensing technology for detecting an operating state of the electronic parking brake and enabling appropriate operation control of the electronic parking brake accordingly.

The electronic parking brake device is configured to exclude a driver's manual operation and to form or release a parking state by using power generated by an electrically operated actuator. Conventionally, the force provided by the actuator is to some extent. Or a load sensor is needed to determine if it is being delivered to the brake system of the wheel.

That is, the actuator of the conventional electronic parking brake device is configured as shown in Figure 1, when the driver operates the electronic parking brake, the controller 500 drives the motor 502, the driving force of the motor 502 Is powered by the drive gear 504 and the output gear 506, the torque of the output gear 506 is converted into a linear motion through the screw 508 to pull both cables 510, The load sensor 512 is provided between the screw 508 and the cable 510 on one side, and detects the degree to which the cable 510 is pulled as a load acting on the cable 510, thereby providing an appropriate level of load. If detected, the controller 500 may control to stop the driving of the motor 502.

2 illustrates a load sensor 512 as described above, and a magnet 516, a hall sensor 518, and a spring 520 are provided in the sensor case 514, and the sensor case 514 itself is provided. It is configured to be pulled to the left side by the screw 508 of the actuator, the right side is to be connected to the brake device of the wheel through the cable 510, so that the sensor case 514 is pulled to the left and the cable 510 Increasing the force transmitted to the), the spring 520 is contracted accordingly, the magnet 516 changes position with respect to the hall sensor 518, by using the change the parking cable 510 It is to detect the load transmitted through.

However, the load sensor 512 of the above-described configuration is relatively expensive in structure as described above, and the spring 520 of high tension is required to be mounted therein, and the unit price is relatively high, and the volume thereof is large. There is a problem that reduces the size of the actuator acts as a barrier.

The present invention has been made in order to solve the above problems, and by removing the conventional load sensor, by accurately and precisely detecting the operating state of the actuator driven by the motor to provide the signal to the controller, It is an object of the present invention to provide an electronic parking brake device capable of appropriately and precisely controlling the parking brake device as well as reducing the volume, unit cost, and weight of the actuator.

The present invention the electronic parking brake device for achieving the above object

An output gear made of a magnetic material, the output gear being rotated by the rotational force provided from the motor to convert into a linear motion for pulling the cable;

A magnet spaced apart from the gear tooth of the output gear such that the gear teeth of the output gear are within the range of the magnetic field;

A hall sensor provided on a straight path between the output gear and the magnet;

Characterized in that configured to include.

The present invention excludes a load sensor conventionally provided in an actuator of an electronic parking brake device, and precisely and accurately detects an operating state of an actuator driven by a motor to provide a signal to the controller, thereby providing a signal for the electronic parking brake device. Proper and precise control can be achieved, as well as reducing the volume, cost and weight of the actuator.

1 is a view illustrating an actuator structure of a conventional electronic parking brake device;
2 is a view for explaining the structure of the conventional load sensor of FIG.
3 is a view showing the main part of the electronic parking brake apparatus according to the present invention in a diagram corresponding to the section III-III in FIG.
FIG. 4 is a graph illustrating a change in a magnetic field detected by the hall sensor as one gear value of the output gear approaches and moves away from the hall sensor in FIG. 3.

3, an embodiment of the present invention includes an output gear (1) made of a magnetic material and provided to be converted to a linear motion to be rotated by the rotational force provided from the motor to pull the cable; A magnet (3) spaced apart from the gear teeth of the output gear (1) such that the gear teeth of the output gear (1) are located within the range of the magnetic field; And a Hall sensor 5 provided on a straight path between the output gear 1 and the magnet 3.

That is, the conventional load sensor is removed, and the rotation of the output gear 1 is sensed by the Hall sensor 5 as described above, and the controller drives the motor for driving the output gear 1 according to a predetermined rotation speed. By allowing the feedback control, the actuator can be configured with a simpler structure, and the precise actuator can be controlled.

Here, the output gear 1 is made of a magnetic material as described above, because it must react to the magnetic field by the magnet, it may be made of a material containing iron attached to the magnet.

In this embodiment, the magnet (3) is fixed to the inner side of the actuator case (7) surrounding both the motor and the output gear (1), the Hall sensor (5) is inside the actuator case (7) It is a structure fixed to the outer surface of the gear box (9) surrounding the output gear (1).

That is, the magnet 3 and the hall sensor 5 may be formed by using components that are naturally used in a conventional actuator, without configuring a separate structure or the like to mount the magnet 3 and the hall sensor 5. By mounting, the added parts are minimized.

The gear teeth of the output gear 1 protrude in a radial direction from the center of the output gear 1, and the hall sensor 5 and the magnet 3 follow the radial direction of the output gear 1. It is a structure arranged in a straight line.

That is, the output gear 1 is formed in the shape of a simple spur gear in this embodiment, and the hall sensor 5 and the magnet 3 have a gear value of the output gear 1 at the output gear 1. They are spaced apart from each other in order on an imaginary straight line formed along the radial direction of the output gear 1 in the protruding direction.

In the structure as described above, while the output gear 1 is rotated while one of the gear teeth of the output gear 1 approaches the hall sensor 5 and moves away, the hall sensor 5 As shown in Fig. 4, the strength of the magnetic field increases and decreases when the gear value is closest to the Hall sensor 5, and then decreases. In the Hall sensor 5 according to the movement of each gear value, The detected signal is properly counted to indicate the rotation angle and the rotation speed of the output gear 1.

The controller controls the driving and the stop of the motor according to the rotation speed of the detected output gear 1 as described above, thereby controlling the behavior of the output gear 1 to a very precise level, ultimately By precisely manipulating the amount of pull of the cable connected to the output gear 1 according to a preset amount, it is possible to precisely control the parking brake.

One; Output gear
3; Magnet
5; Hall sensor
7; Actuator Case
9; Gearbox

Claims (3)

An output gear made of a magnetic material, the output gear being rotated by the rotational force provided from the motor to convert into a linear motion for pulling the cable;
A magnet spaced apart from the gear tooth of the output gear such that the gear teeth of the output gear are within the range of the magnetic field;
A hall sensor provided on a straight path between the output gear and the magnet;
Electronic parking brake device, characterized in that configured to include. The method according to claim 1,
The magnet is fixedly installed on an inner side of an actuator case surrounding both the motor and the output gear;
The Hall sensor is fixed to the outer surface of the gear box surrounding the output gear in the actuator case is installed
Electronic parking brake device characterized in that. The method according to claim 2,
The gear tooth of the output gear is formed to protrude radially from the center of the output gear;
The Hall sensor and the magnet are arranged in a straight line along the radial direction of the output gear
Electronic parking brake device characterized in that.
KR1020100042428A 2010-05-06 2010-05-06 Electronic parking brake apparatus KR20110123017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100042428A KR20110123017A (en) 2010-05-06 2010-05-06 Electronic parking brake apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100042428A KR20110123017A (en) 2010-05-06 2010-05-06 Electronic parking brake apparatus

Publications (1)

Publication Number Publication Date
KR20110123017A true KR20110123017A (en) 2011-11-14

Family

ID=45393308

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100042428A KR20110123017A (en) 2010-05-06 2010-05-06 Electronic parking brake apparatus

Country Status (1)

Country Link
KR (1) KR20110123017A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130141072A (en) * 2012-06-15 2013-12-26 엘지이노텍 주식회사 Braking apparatus
US20210122351A1 (en) * 2019-10-25 2021-04-29 Hyundai Mobis Co., Ltd. Parking brake apparatus for vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130141072A (en) * 2012-06-15 2013-12-26 엘지이노텍 주식회사 Braking apparatus
US20210122351A1 (en) * 2019-10-25 2021-04-29 Hyundai Mobis Co., Ltd. Parking brake apparatus for vehicle
US11858486B2 (en) * 2019-10-25 2024-01-02 Hyundai Mobis Co., Ltd. Parking brake apparatus for vehicle

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E601 Decision to refuse application