WO2004035363A1 - Brake controlling apparatus for vehicle - Google Patents

Brake controlling apparatus for vehicle Download PDF

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Publication number
WO2004035363A1
WO2004035363A1 PCT/KR2003/002160 KR0302160W WO2004035363A1 WO 2004035363 A1 WO2004035363 A1 WO 2004035363A1 KR 0302160 W KR0302160 W KR 0302160W WO 2004035363 A1 WO2004035363 A1 WO 2004035363A1
Authority
WO
WIPO (PCT)
Prior art keywords
braking
controlling apparatus
switch
unit
driving
Prior art date
Application number
PCT/KR2003/002160
Other languages
French (fr)
Inventor
Jong-Son Park
Original Assignee
Jong-Son Park
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 Jong-Son Park filed Critical Jong-Son Park
Priority to AU2003272103A priority Critical patent/AU2003272103A1/en
Publication of WO2004035363A1 publication Critical patent/WO2004035363A1/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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • 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
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
    • B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
    • B60K26/021—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements with means for providing feel, e.g. by changing pedal force characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2302/00—Responses or measures related to driver conditions
    • B60Y2302/09—Reducing the workload of driver
    • 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

Definitions

  • the present invention relates to a brake controlling apparatus for vehicles, and more particularly to a brake controlling apparatus for vehicles, in which a brake pedal is moved to a braking position so as to stop a vehicle,, so that a braking state of the brake pedal is maintained without continuously applying a force to the brake pedal when a driver wants to stop the vehicle, thereby assisting the driver, particularly a new driver, to safely drive and alleviate driver fatigue .
  • an applicant of the present invention has proposed a technique, disclosed by Korean Patent Serial No. 27067, in which a vacuum generated by an engine serves to adjust left and right sides of a booster and to operate a brake pedal, a master cylinder, a release cylinder, etc., so as to achieve a desired purpose.
  • a vacuum generated by an engine serves to adjust left and right sides of a booster and to operate a brake pedal, a master cylinder, a release cylinder, etc.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a brake controlling apparatus for vehicles, which prevents a vehicle stopped on a slope from being pushed in a direction opposite to a vehicle' s direction when a vehicle stopped on a slope is started, and maintains a stopped state of the vehicle without continuously applying a force to the brake pedal when the vehicle is temporarily stopped, thereby assisting the driver, particularly a beginner, to safely drive and alleviate driver fatigue.
  • a brake controlling apparatus for vehicles comprising: an input unit for inputting a set value for setting a driving speed as a standard for judgment; an accelerator pedal manipulation sensor for determining whether or not the accelerator pedal installed at the driver' s seat of a vehicle is being manipulated; a driving speed sensor for determining whether or not a driving speed coincides with the set value; an inertia switch for cutting off the current applied to respective control units when the braking controlling apparatus is abnormally operated, the input unit, the accelerator pedal manipulation sensor, the driving speed sensor and the inertia switch being electrically connected to an input side of a control unit; and a subsidiary braking unit, electrically connected to an output side of the control unit, wherein a control signal is applied to the subsidiary braking unit based on a result, obtained by comparing data from the sensors to the set value from the input unit in a control sequence, so that a brake pedal is moved to a brake position or maintained at the braking position by
  • the braking power transmission unit may include: a bracket bent in an approximate TJ shape and installed so as to be rotatable on a hinge shaft on which the brake pedal is installed; and a pedal transferring plate, having a fan shape, provided with a driven gear formed along the circumference and inserted into the bracket so as to be rotatable on the hinge shaft.
  • the subsidiary braking unit may include: a driving motor provided with a driving roller at one side thereof and a driving shaft fixed to a central area thereof; first and second magnets ovably fitted into the driving shaft; a magnetic plate inserted into the driving shaft at the side surfaces of the first and second magnets, so that the magnetic plate is freely movable; a connection plate provided with a one-way clutch and inserted into the driving shaft on a side of the magnetic plate; and a load sensor installed at one side of the driving motor, the driving motor and the first and second magnets being electrically connected to the control unit so that the driving motor and the first and second magnets are switched on/off by a control current applied from the control unit.
  • Fig. 1 is a block diagram of a brake controlling apparatus for vehicles in accordance with the present invention
  • Fig. 2 is an exploded perspective view of a subsidiary braking unit of the brake controlling apparatus in accordance with the present invention
  • Fig. 3 is a schematic cross-sectional view of the subsidiary braking unit of the brake controlling apparatus in accordance with the present invention.
  • Fig. 4 is a schematic view of an inertia switch of the brake controlling apparatus in accordance with the present invention
  • Fig. 5 is a flow chart illustrating operation of the brake controlling apparatus in accordance with the present invention.
  • Fig. 1 is a block diagram of a brake controlling apparatus for vehicles in accordance with the present invention.
  • Fig. 2 is an exploded perspective view of a subsidiary braking unit of the brake controlling apparatus in accordance with the present invention.
  • Fig. 3 is a schematic cross-sectional view of the subsidiary braking unit of the brake controlling apparatus in accordance with the present invention.
  • the brake controlling apparatus of the present invention comprises an input unit 3 for inputting a set value for setting a driving speed as a 1 standard of judgment, an accelerator pedal manipulation sensor 5 for determining whether or not an accelerator pedal installed at a driver's seat of a vehicle is manipulated, a driving speed sensor 7 for determining whether or not the driving speed of the vehicle coincides with the set value, an inertia switch 9 for switching off a current applied to control units when the braking controlling apparatus is W 20
  • the input unit 3, the accelerator pedal manipulation sensor 5, the driving speed sensor 7 and the inertia switch 9 are electrically connected to an input side of a control unit 1, and the subsidiary braking unit is electrically connected to an output side of the control unit 1.
  • the subsidiary braking unit is provided with a braking power transmission unit installed adjacent to a brake pedal 15 installed at the driver' s seat, and a subsidiary braking unit connected to the braking power transmission unit.
  • the subsidiary braking unit is electrically connected to the inertia switch 9 installed at a designated position of the vehicle.
  • the braking power transmission unit includes a bracket 22 bent in an approximate U shape and installed so as to be rotatable on a hinge shaft 20, on which the brake pedal 15 is installed, and a pedal transferring plate 28, having a fan shape, provided with a driven gear 24 formed along a circumference and inserted into the bracket 22 so as to be rotatable on the hinge shaft 20.
  • a known push rod 30, a brake booster 32 and master cylinder 34 are connected to the brake pedal 15. When the brake pedal 15 is pushed by a driver's foot, it is rotated on the hinge shaft 20 and the push rod 30 presses the brake booster 32, thereby allowing the master cylinder 34 to be operated and generating braking power.
  • the subsidiary braking unit includes a driving motor 42 provided with a driving roller 40 at one side thereof and a driving shaft 41 fixed to a central area thereof, first and second magnets 44 and 46 movably fit into the driving shaft 41, a magnetic plate 48 inserted into the driving shaft 41 at side surfaces of the first and second magnets 44 and 46 so that the magnetic plate 48 is freely movable, a connection plate 52 provided with a oner-way clutch 50 and inserted into the driving shaft 41 at a side of the magnetic plate 48, and a load sensor 54 installed at one side of the driving motor 42.
  • the driving motor 42, the first magnet 44 and the second magnet 46 are electrically connected to the control unit 1, thus being switched on/off by a control current applied from the control unit 1.
  • the driving roller 40 includes a driving gear 58 installed at a central area of a main body (not shown) thereof and connected with the driven gear 24 of the pedal transferring plate 28. Accordingly, when the driving motor 42 is rotated, the pedal transferring plate 28 is moved by rotating power generated by the rotation of the driving motor 42 so that the brake pedal 15 is moved into a braking position.
  • the inertia switch 9 includes a switch box 60 installed so as to have a designated shape, a supporting shaft 63 fixed to the side of a main body 62 contained by the switch box 60, and a supporting spring 66 connected to the supporting shaft 63 and provided with an inertia rod '64 at one end.
  • a rubber supporting plate 68 is installed at one side of the switch box 60 so that one end of the inertia rod 64 freely contacts the rubber supporting plate 68.
  • a switch 74 provided with a switch lid roller 70 and a switch main body 72 is installed at a designated position inside a rotational radius of the inertia rod 64 in the switch box 60.
  • the switch 74 is electrically connected to the input side of the control unit 1.
  • the inertia rod 64 is located at the rear portion in the switch box 60, and the switch 74 is located at a front portion in the switch box 60.
  • the control unit 1 of the brake controlling apparatus senses the stoppage of the vehicle and switches on a controlling power directed to the driving motor 42 and the first and second magnets 44 and 46, thereby operating the driving motor 42 and magnetizing the first and second magnets 44 and 46 so that the brake pedal 15 is moved into a braking position. Then, the movement of the brake pedal is momentarily fixed to the braking position by a magnetic force.
  • the accelerator pedal manipulation sensor 5 senses the pressing of the accelerator pedal and switches off the controlling power through the control unit 1, thereby returning the brake pedal .15 to its earlier position so that the vehicle moves in a normal state.
  • the inertia switch 9 repeatedly performs switching on and off of the power applied to controlling units, thereby allowing the vehicle to be safely and slowly stopped in sufficient time. That is, when a driving vehicle is stopped, the accelerator pedal manipulation sensor 5 senses the stoppage of the vehicle, and applies a signal for the stoppage to the control unit 1. After a designated time (approximately 1.5 seconds in this embodiment) from the condition that a driving speed of the vehicle sensed by the driving speed sensor 7 is
  • the control unit 1 applies the control current to the driving motor 42 and the first and second magnets 44 and 46.
  • the driving motor 42 rotates the driving shaft
  • the driving gear 58 is rotated " in a counterclockwise direction and the pedal transferring plate 28 is moved in a clockwise direction so that the brake pedal 15 presses the brake booster 32, thereby operating the brake controlling apparatus. .
  • the first and second magnets 44 and 46 are magnetized, and magnetically fix the connection plate 52 through the magnetic plate 48.
  • the one-way clutch 50 restricts the opposite rotation of the driving roller 40.
  • the control unit 1 determines whether or not the driving speed sensor 7 is abnormally operated. When it is determined that the driving speed sensor 7 is abnormally operated, the control unit 1 switches off the brake controlling apparatus. Thereby, it is possible to prevent accidents caused by the abnormal operation of the controlling elements.
  • the accelerator pedal manipulation sensor 5 senses the pressing of the accelerator pedal by the driver's foot, and applies a control signal to the control unit 1. Then, the control unit 1 switches off a current to be applied to the driving motor 42 and the first and second magnets 44 and 46.
  • connection plate 52 by means of the magnetic force of the first and second magnets 44 and 46 is released and changed to a free state, and the pedal transferring plate 28 is moved along a dotted line so that the brake pedal 15 is returned to its earlier position, thereby being released from the braking state and allowing the vehicle to start.
  • the inertia switch 9 senses this state and repeatedly performs the on/off switching operations, thereby allowing the vehicle to be slowly stopped. That is, when the inertia force is exerted on the vehicle, the inertia rod 64 pushes the switch lid roller 70 due ' to the inertia force, thereby allowing the switch 74 to be switched on. That is, the inertia rod 64 provided with the supporting spring 66 has a certain amount of elasticity and the rubber supporting plate 68 is installed at one side of the main body 62.
  • the inertia rod 64 is rotated frontward by the elastic force of the supporting spring 66, and turns on the switch 74, rotated backward by the elastic force of. the supporting spring 66, and is then rotated frontward again by means of the elasticity of the rubber supporting plate 68.
  • the switch 74 is repeatedly switched on and off, thus intermittently supplying a control current. Further, since the switch 74 is switched on again after a lapse of at least 1.5, it is possible to guarantee a time for controlling the repeated movement.
  • the inertia switch 9 is designed such that the inertia switch 9 is immediately operated only by the inertia force exerted on the vehicle regardless of the above-described determination order, thus effectively preventing accidents caused by the abnormal operation of the brake controlling apparatus .
  • control current may be applied simultaneously to the first and second magnets 44 and 46 in this embodiment of the present, "the control current may be applied only to one of the first and second magnets 44 and 46 and the other one of the first and second magnets 44 and 46 may serve as a subsidiary magnet, which can be substituted for a defective main magnet.
  • the above-described controlling units may be collectively controlled by the control unit 1, or manually controlled by means of a known remote control unit.
  • a switch for .controlling the on and off state of . the brake controlling apparatus may be installed in a transmission lever (not shown) so that the braking state of the brake controlling apparatus is momentarily released by the switch when the vehicle is driven backward.
  • the present invention provides a brake controlling apparatus for vehicles, which senses the stoppage of a vehicle without manipulation of a brake pedal by a driver so as to brake the vehicle, prevents the vehicle stopped on a slope from being pushed in a direction opposite a vehicle's traveling direction when the vehicle stopped on a slope is started, and maintains a stopped state of the brake pedal without continuously applying a force to the brake pedal when the vehicle is temporarily stopped, thereby 20

Abstract

Disclosed is a brake controlling apparatus for vehicles comprising: an input unit (3) for inputting a set value for setting a driving speed as a standard of judgment; an accelerator pedal manipulation sensor (5) for determining whether an accelerator pedal is manipulated; a driving speed sensor (7) for determining whether a driving speed coincides with the set value; an inertia switch (9) for cutting off a current applied to control units when the braking controlling apparatus is abnormally operated; and a subsidiary braking unit, wherein a control signal is applied to the subsidiary braking unit based on a result, obtained by comparing data sensed by sensors to the set value inputted by the input unit in a control sequence, so that a brake pedal (15) is moved to a braking position or maintained at the braking position by a braking power transmission unit of the subsidiary braking unit.

Description

BRAKE CONTROLLING APPARATUS FOR VEHICLE
Technical Field The present invention relates to a brake controlling apparatus for vehicles, and more particularly to a brake controlling apparatus for vehicles, in which a brake pedal is moved to a braking position so as to stop a vehicle,, so that a braking state of the brake pedal is maintained without continuously applying a force to the brake pedal when a driver wants to stop the vehicle, thereby assisting the driver, particularly a new driver, to safely drive and alleviate driver fatigue .
Background Art
When a driver wants to stop his/her operating vehicle or slow the driving speed of the vehicle, the driver steps on a brake pedal. Particularly, when the driver wants to stop his/her vehicle, the' driver must continue stepping on the brake pedal after stoppage of the vehicle, thus feeling fatigue. Further, differing from a vehicle provided with a manual transmission, where a vehicle is provided with an automatic transmission, inertia of continuously driving the vehicle in the earlier direction is exerted on the stopped vehicle. Accordingly, since the driver must step on the brake pedal more strongly in order to completely stop the vehicle with an automatic transmission, the vehicle provided with the automatic transmission aggravates driver fatigue. Further, when the driver wants to start the vehicle along a steep ascending slope, the vehicle, even though which having an automatic transmission, is pushed rearward, causing the driver, particularly a beginner, to be confused and be in danger of accident. Accordingly, in view of the above problems, an applicant of the present invention has proposed a technique, disclosed by Korean Patent Serial No. 27067, in which a vacuum generated by an engine serves to adjust left and right sides of a booster and to operate a brake pedal, a master cylinder, a release cylinder, etc., so as to achieve a desired purpose. Particularly, using the above technique, the difference of pressures between chambers is generated by air introduced into a gap therebetween, and the master cylinder is operated by the force generated by the difference in pressures. Thereby, the vehicle is stopped. In case a high-power engine is operated only by the above limited vacuum, the engine reaches an unbalanced state. Accordingly, it is difficult to substantially apply the above conventional technique to vehicles. Disclosure of the Invention
Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a brake controlling apparatus for vehicles, which prevents a vehicle stopped on a slope from being pushed in a direction opposite to a vehicle' s direction when a vehicle stopped on a slope is started, and maintains a stopped state of the vehicle without continuously applying a force to the brake pedal when the vehicle is temporarily stopped, thereby assisting the driver, particularly a beginner, to safely drive and alleviate driver fatigue.
In accordance with the present invention, the above and other objects can be accomplished by the provision of a brake controlling apparatus for vehicles comprising: an input unit for inputting a set value for setting a driving speed as a standard for judgment; an accelerator pedal manipulation sensor for determining whether or not the accelerator pedal installed at the driver' s seat of a vehicle is being manipulated; a driving speed sensor for determining whether or not a driving speed coincides with the set value; an inertia switch for cutting off the current applied to respective control units when the braking controlling apparatus is abnormally operated, the input unit, the accelerator pedal manipulation sensor, the driving speed sensor and the inertia switch being electrically connected to an input side of a control unit; and a subsidiary braking unit, electrically connected to an output side of the control unit, wherein a control signal is applied to the subsidiary braking unit based on a result, obtained by comparing data from the sensors to the set value from the input unit in a control sequence, so that a brake pedal is moved to a brake position or maintained at the braking position by a power transmission unit of the subsidiary braking unit. Preferably, the braking power transmission unit may include: a bracket bent in an approximate TJ shape and installed so as to be rotatable on a hinge shaft on which the brake pedal is installed; and a pedal transferring plate, having a fan shape, provided with a driven gear formed along the circumference and inserted into the bracket so as to be rotatable on the hinge shaft.
Further, preferably, the subsidiary braking unit may include: a driving motor provided with a driving roller at one side thereof and a driving shaft fixed to a central area thereof; first and second magnets ovably fitted into the driving shaft; a magnetic plate inserted into the driving shaft at the side surfaces of the first and second magnets, so that the magnetic plate is freely movable; a connection plate provided with a one-way clutch and inserted into the driving shaft on a side of the magnetic plate; and a load sensor installed at one side of the driving motor, the driving motor and the first and second magnets being electrically connected to the control unit so that the driving motor and the first and second magnets are switched on/off by a control current applied from the control unit.
Brief Description of the Drawings
The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a block diagram of a brake controlling apparatus for vehicles in accordance with the present invention;
Fig. 2 is an exploded perspective view of a subsidiary braking unit of the brake controlling apparatus in accordance with the present invention;
Fig. 3 is a schematic cross-sectional view of the subsidiary braking unit of the brake controlling apparatus in accordance with the present invention;
Fig. 4 is a schematic view of an inertia switch of the brake controlling apparatus in accordance with the present invention; and Fig. 5 is a flow chart illustrating operation of the brake controlling apparatus in accordance with the present invention.
Best Mode for Carrying Out the Invention
Now, a preferred embodiment of the present invention will be described in detail with reference to the annexed drawings.
Fig. 1 is a block diagram of a brake controlling apparatus for vehicles in accordance with the present invention. Fig. 2 is an exploded perspective view of a subsidiary braking unit of the brake controlling apparatus in accordance with the present invention. Fig. 3 is a schematic cross-sectional view of the subsidiary braking unit of the brake controlling apparatus in accordance with the present invention. The brake controlling apparatus of the present invention comprises an input unit 3 for inputting a set value for setting a driving speed as a1 standard of judgment, an accelerator pedal manipulation sensor 5 for determining whether or not an accelerator pedal installed at a driver's seat of a vehicle is manipulated, a driving speed sensor 7 for determining whether or not the driving speed of the vehicle coincides with the set value, an inertia switch 9 for switching off a current applied to control units when the braking controlling apparatus is W 20
abnormally operated, and a subsidiary braking unit. The input unit 3, the accelerator pedal manipulation sensor 5, the driving speed sensor 7 and the inertia switch 9 are electrically connected to an input side of a control unit 1, and the subsidiary braking unit is electrically connected to an output side of the control unit 1.
The subsidiary braking unit is provided with a braking power transmission unit installed adjacent to a brake pedal 15 installed at the driver' s seat, and a subsidiary braking unit connected to the braking power transmission unit. The subsidiary braking unit is electrically connected to the inertia switch 9 installed at a designated position of the vehicle.
Here, the braking power transmission unit includes a bracket 22 bent in an approximate U shape and installed so as to be rotatable on a hinge shaft 20, on which the brake pedal 15 is installed, and a pedal transferring plate 28, having a fan shape, provided with a driven gear 24 formed along a circumference and inserted into the bracket 22 so as to be rotatable on the hinge shaft 20. A known push rod 30, a brake booster 32 and master cylinder 34 are connected to the brake pedal 15. When the brake pedal 15 is pushed by a driver's foot, it is rotated on the hinge shaft 20 and the push rod 30 presses the brake booster 32, thereby allowing the master cylinder 34 to be operated and generating braking power. The subsidiary braking unit includes a driving motor 42 provided with a driving roller 40 at one side thereof and a driving shaft 41 fixed to a central area thereof, first and second magnets 44 and 46 movably fit into the driving shaft 41, a magnetic plate 48 inserted into the driving shaft 41 at side surfaces of the first and second magnets 44 and 46 so that the magnetic plate 48 is freely movable, a connection plate 52 provided with a oner-way clutch 50 and inserted into the driving shaft 41 at a side of the magnetic plate 48, and a load sensor 54 installed at one side of the driving motor 42. Here, the driving motor 42, the first magnet 44 and the second magnet 46 are electrically connected to the control unit 1, thus being switched on/off by a control current applied from the control unit 1. The driving roller 40 includes a driving gear 58 installed at a central area of a main body (not shown) thereof and connected with the driven gear 24 of the pedal transferring plate 28. Accordingly, when the driving motor 42 is rotated, the pedal transferring plate 28 is moved by rotating power generated by the rotation of the driving motor 42 so that the brake pedal 15 is moved into a braking position.
As shown in Fig. 4, the inertia switch 9 includes a switch box 60 installed so as to have a designated shape, a supporting shaft 63 fixed to the side of a main body 62 contained by the switch box 60, and a supporting spring 66 connected to the supporting shaft 63 and provided with an inertia rod '64 at one end.
A rubber supporting plate 68 is installed at one side of the switch box 60 so that one end of the inertia rod 64 freely contacts the rubber supporting plate 68. A switch 74 provided with a switch lid roller 70 and a switch main body 72 is installed at a designated position inside a rotational radius of the inertia rod 64 in the switch box 60. The switch 74 is electrically connected to the input side of the control unit 1. Here, the inertia rod 64 is located at the rear portion in the switch box 60, and the switch 74 is located at a front portion in the switch box 60. The above arrangement of the inertia rod 64 and the switch 74 allows the inertia switch 9 to effectively sense the abnormal operation of the subsidiary braking unit.
Hereinafter, operation of the brake controlling apparatus in accordance with an embodiment of the present invention will be described in detail.
When a vehicle provided with the brake controlling apparatus of the present invention is stopped, the control unit 1 of the brake controlling apparatus senses the stoppage of the vehicle and switches on a controlling power directed to the driving motor 42 and the first and second magnets 44 and 46, thereby operating the driving motor 42 and magnetizing the first and second magnets 44 and 46 so that the brake pedal 15 is moved into a braking position. Then, the movement of the brake pedal is momentarily fixed to the braking position by a magnetic force. When a driver presses the accelerator pedal by his/her foot so as to start the vehicle, the accelerator pedal manipulation sensor 5 senses the pressing of the accelerator pedal and switches off the controlling power through the control unit 1, thereby returning the brake pedal .15 to its earlier position so that the vehicle moves in a normal state. On the other hand, when the brake controlling apparatus of the present invention is operated due to abnormal driving of the vehicle, the inertia switch 9 repeatedly performs switching on and off of the power applied to controlling units, thereby allowing the vehicle to be safely and slowly stopped in sufficient time. That is, when a driving vehicle is stopped, the accelerator pedal manipulation sensor 5 senses the stoppage of the vehicle, and applies a signal for the stoppage to the control unit 1. After a designated time (approximately 1.5 seconds in this embodiment) from the condition that a driving speed of the vehicle sensed by the driving speed sensor 7 is
Okm/h elapses, the control unit 1 applies the control current to the driving motor 42 and the first and second magnets 44 and 46.
Accordingly, the driving motor 42 rotates the driving shaft
41, and then rotates the driving roller 40. Thereafter, the W 20
driving gear 58 is rotated "in a counterclockwise direction and the pedal transferring plate 28 is moved in a clockwise direction so that the brake pedal 15 presses the brake booster 32, thereby operating the brake controlling apparatus. . Further, the first and second magnets 44 and 46 are magnetized, and magnetically fix the connection plate 52 through the magnetic plate 48. Thereby", the one-way clutch 50 restricts the opposite rotation of the driving roller 40. When the pressure of the push rod 30 reaches its limit and the load sensor 54 senses this pressure state of the push rod 30, the operation of the driving motor 42 is stopped. However, since the pressure of the push rod 30 prevents the brake pedal 15 from being returned to its earlier position due to a restoring force in the counterclockwise direction (shown by a dotted line) , the braking state of the brake pedal 15 is continuously maintained without additional pressing of the brake pedal 15.
Although a designated time (approximately 6 seconds in this embodiment) from the condition that the accelerator pedal is pressed elapses, in case that the driving speed of the vehicle sensed by the driving speed sensor remains at Okm/h, it is identified that the driving speed sensor 7 is abnormally operated. Accordingly, the control unit 1 determines whether or not the driving speed sensor 7 is abnormally operated. When it is determined that the driving speed sensor 7 is abnormally operated, the control unit 1 switches off the brake controlling apparatus. Thereby, it is possible to prevent accidents caused by the abnormal operation of the controlling elements.
When a driver presses the accelerator pedal 15 with his/her foot so as to start the vehicle, the accelerator pedal manipulation sensor 5 senses the pressing of the accelerator pedal by the driver's foot, and applies a control signal to the control unit 1. Then, the control unit 1 switches off a current to be applied to the driving motor 42 and the first and second magnets 44 and 46.
Accordingly, the momentary fixing state of the connection plate 52 by means of the magnetic force of the first and second magnets 44 and 46 is released and changed to a free state, and the pedal transferring plate 28 is moved along a dotted line so that the brake pedal 15 is returned to its earlier position, thereby being released from the braking state and allowing the vehicle to start.
On the other hand, when the brake controlling apparatus is abnormally operated so that the vehicle is momentarily stopped and an inertia force is generated, the inertia switch 9 senses this state and repeatedly performs the on/off switching operations, thereby allowing the vehicle to be slowly stopped. That is, when the inertia force is exerted on the vehicle, the inertia rod 64 pushes the switch lid roller 70 due 'to the inertia force, thereby allowing the switch 74 to be switched on. That is, the inertia rod 64 provided with the supporting spring 66 has a certain amount of elasticity and the rubber supporting plate 68 is installed at one side of the main body 62. Accordingly, when an inertia force is exerted on the vehicle, the inertia rod 64 is rotated frontward by the elastic force of the supporting spring 66, and turns on the switch 74, rotated backward by the elastic force of. the supporting spring 66, and is then rotated frontward again by means of the elasticity of the rubber supporting plate 68. By the repeated reciprocation movement of the inertia rod 64 frontward and backward in a designated number, the switch 74 is repeatedly switched on and off, thus intermittently supplying a control current. Further, since the switch 74 is switched on again after a lapse of at least 1.5, it is possible to guarantee a time for controlling the repeated movement.
Further, the inertia switch 9 is designed such that the inertia switch 9 is immediately operated only by the inertia force exerted on the vehicle regardless of the above-described determination order, thus effectively preventing accidents caused by the abnormal operation of the brake controlling apparatus .
Although a control current is applied simultaneously to the first and second magnets 44 and 46 in this embodiment of the present, "the control current may be applied only to one of the first and second magnets 44 and 46 and the other one of the first and second magnets 44 and 46 may serve as a subsidiary magnet, which can be substituted for a defective main magnet. Further, the above-described controlling units may be collectively controlled by the control unit 1, or manually controlled by means of a known remote control unit. Moreover, a switch for .controlling the on and off state of . the brake controlling apparatus may be installed in a transmission lever (not shown) so that the braking state of the brake controlling apparatus is momentarily released by the switch when the vehicle is driven backward.
Industrial Applicability
As apparent from the above description, the present invention provides a brake controlling apparatus for vehicles, which senses the stoppage of a vehicle without manipulation of a brake pedal by a driver so as to brake the vehicle, prevents the vehicle stopped on a slope from being pushed in a direction opposite a vehicle's traveling direction when the vehicle stopped on a slope is started, and maintains a stopped state of the brake pedal without continuously applying a force to the brake pedal when the vehicle is temporarily stopped, thereby 20
assisting the driver, particularly a beginner, to safely drive and alleviate driver fatigue.'
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims .

Claims

Claims:
1. A brake controlling apparatus for vehicles comprising: an input unit for inputting a set value for setting a driving speed as a standard of judgment; an accelerator pedal manipulation sensor for determining whether or not an accelerator pedal installed at a driver' s seat of a vehicle is being manipulated; a driving speed sensor for determining whether or not the driving speed coincides with the set value; an inertia switch for cutting off a current applied to respective control units when the braking controlling apparatus is abnormally operated, said input unit, said accelerator pedal manipulation sensor, said driving speed sensor and said inertia switch being electrically connected to an input side of a control unit; and a subsidiary braking unit, electrically connected to an output side of the control unit, including: a driving motor provided with a driving roller at one side thereof and a driving shaft fixed to a central area thereof; first and second magnets movably fitted into the driving shaft; a magnetic plate inserted into the driving shaft at 20
side surfaces of the first and second magnets so that the magnetic plate is freely movable; a connection plate provided with a one-way clutch and inserted into the driving shaft at a side of the magnetic plate; a load sensor installed at one side of the driving motor, said driving motor and said first and second magnets being electrically connected to the control unit so that the driving motor and the first and second magnets are switched on/off by a control current applied from the control unit, wherein a control signal is applied to the subsidiary braking unit based on a result, obtained by comparing data sensed by sensors to the set value inputted by the input unit in a control sequence, so that a brake pedal is moved to a braking position or is maintained at the braking position by a braking power transmission unit of the subsidiary braking unit.
2. The brake controlling apparatus as set forth in claim 1, wherein the braking power transmission unit includes: a bracket bent in an approximately U shape and installed so as to be rotatable on a hinge shaft on which the brake pedal is installed; and a pedal transferring plate, having a fan shape, provided with a drive gear formed along a circumference and inserted into the bracket so as to be rotatable on the hinge shaft.
3. The brake controlling apparatus as set forth in claim 1, wherein the inertia switch includes: a supporting shaft fixed to a side of a main body contained by a switch box; an inertia rod elastically installed on the supporting shaft by means of a supporting spring; a rubber supporting plate installed at one side of the main body; and a switch provided with a switch lid roller and a switch main body, and installed at a designated position inside a rotational radius of the inertia rod in the 'switch box so that the switch is electrically connected to the input side of the control unit.
4. The brake controlling apparatus as set forth in claim
1, wherein the control unit senses that the vehicle maintains a stopped state after the lapse of a designated time from the pressing of the accelerator pedal, and then switches off the brake controlling apparatus .
PCT/KR2003/002160 2002-10-16 2003-10-16 Brake controlling apparatus for vehicle WO2004035363A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003272103A AU2003272103A1 (en) 2002-10-16 2003-10-16 Brake controlling apparatus for vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020020063063A KR20040033804A (en) 2002-10-16 2002-10-16 Safety Braking Apparatus of Vehicle
KR10-2002-0063063 2002-10-16

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AU (1) AU2003272103A1 (en)
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CN111216698A (en) * 2020-01-09 2020-06-02 广东工业大学 Foldable pedal suitable for intelligent vehicle manned-unmanned dual mode and control method

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CN109131301B (en) * 2018-09-30 2024-03-26 无锡安迈科技有限公司 Target unit of pedal sensing device of brake system

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AU2003272103A1 (en) 2004-05-04

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