• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake system of an automobile, wherein an auxiliary cylinder is installed in a conventional brake system of an automobile, and in the case of rapid deceleration, the auxiliary cylinder is operated in parallel with the conventional main brake system to control the pressure of the brake wheel cylinder. The purpose is to improve the braking performance of the brake system. According to an aspect of the present invention, there is provided a brake system including a brake pedal, a brake power booster, a brake master cylinder, and a brake line and a brake wheel cylinder; deceleration detecting means for detecting a deceleration of a vehicle; An auxiliary brake line communicating with the brake line to assist the pressure of the brake; an auxiliary cylinder for increasing the pressure of the auxiliary brake line by pushing the piston using an electromagnet; And a control switch for supplying power to the electromagnet in the auxiliary cylinder when the deceleration is detected; and an interrupter for repeatedly controlling the control power of the control switch.
    公开号:KR19990015164A
    申请号:KR1019970037076
    申请日:1997-08-02
    公开日:1999-03-05
    发明作者:김진석
    申请人:정몽규；현대자동차 주식회사；
    IPC主号:
    专利说明:

    Brake aid
    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake system of a motor vehicle, and more particularly to a brake assisting device for assisting a brake system of a motor vehicle.
    The present invention improves the braking performance of the brake system by installing an auxiliary cylinder in a conventional brake system of an automobile and controlling the pressure of the brake wheel cylinder by operating the auxiliary cylinder in parallel with the conventional main brake system during rapid deceleration. It is aimed at letting.
    Conventional vehicles are provided with a brake device for controlling the speed at the time of driving the car,
    According to the configuration of the hydraulic brake system as shown in part in FIG. 1, the brake pedal 1, the brake booster 2, the brake master cylinder 3, the oil supply tank 4, the brake line 5 and the brake wheel The cylinders 6 and 6 'consist of the main elements.
    According to the operation of the conventional brake system of the above-described configuration, when the driver presses the brake pedal 1 to generate a stepping force, the stepping force is multiplied by the powering device so that the piston rod of the brake master cylinder 3 is not shown. As a result, hydraulic pressure is generated in the master cylinder in proportion to the above-described foot force, and is transmitted along the brake line 5 to the brake wheel cylinders 6 and 6 'of each wheel.
    Then, the brake caliper (not shown) asks the brake disc (not shown) to rotate with the wheels in the case of the disc brake by the brake hydraulic pressure of the brake wheel cylinder, or the brake shoe (not shown) in the case of the drum brake. The brake drum is braked by pressing the brake drum (not shown).
    Then, when the driver releases the pedal, it is returned to the initial state by the return wheels (not shown) in the brake wheel cylinders 6 and 6 'and the brake master cylinder 3.
    The biggest problem in the conventional brake system of the vehicle is to reduce the braking distance of the vehicle. In particular, the braking distance of the vehicle tends to be long when the wheel is locked and slipped during sudden braking.
    Therefore, the braking of the wheels is monitored in advance, and the brake pressure of the brake wheel cylinder is reduced, maintained, and increased during braking to prevent the seizure of the wheels. In addition, ABS (Anti-Bloking Sysem) is sometimes installed in the brake system as a means to secure steering stability during braking.
    However, this ABS is relatively expensive because it must be accompanied by many components, and the emphasis is placed on the means to secure steering stability during braking, and the main goal is to prevent wheel sticking through decompression rather than increasing pressure. The disadvantage is that it does not have much effect.
    Therefore, it is simple and inexpensive, but it is possible to reduce the braking distance by increasing the brake pressure of the wheel cylinder of each wheel during braking in a short time, and also to increase the brake pressure stepwise to prevent the wheels from sticking. Therefore, a means for increasing the braking performance of the vehicle is required.
    The present invention is to solve the problems of the conventional brake system of the vehicle described above, in the brake system of the vehicle, the braking performance by increasing the brake pressure step by step, it is possible to achieve in a fast time step by step It is a technical object of the present invention to provide a brake assistance device for improving the performance of the vehicle.
    1 is a view showing a schematic configuration of a brake assistance device of a vehicle according to the present invention,
    2 is a view showing an embodiment of an acceleration sensor used in a brake assistance device of a vehicle according to the present invention;
    3 is a view illustrating a pressure rise state of a brake line in a vehicle equipped with a brake assistance apparatus of a vehicle according to the present invention.
    Explanation of symbols on the main parts of the drawing
    1: brake pedal 2: brake booster
    3: Brake master cylinder 4: Oil supply tank
    5: Brake line 6,6 ': Brake wheel cylinder
    7: Reduced speed detection means 8: Chopper
    10: auxiliary cylinder 11: control valve
    12: Movable terminal 13: Fixed terminal
    14: return spring 15: sensor top plate
    16: Sensor bottom 17: Vibration weight
    18: housing 19: power
    According to an aspect of the present invention, there is provided a vehicle including a brake pedal, a brake power booster, a brake master cylinder, and a brake system including a brake line and a brake wheel cylinder. A deceleration detecting means for detecting a deceleration; an auxiliary brake line communicating with the brake line to assist the pressure of the brake; pushing the piston using an electromagnet to increase the pressure of the auxiliary brake line; An auxiliary cylinder; a control switch for supplying power to an electromagnet in the auxiliary cylinder when a deceleration higher than a reference is detected from the deceleration detecting means; and an interrupter for repeatedly controlling the control power of the control switch. Provided is a brake assistance device for a vehicle.
    Hereinafter will be described the configuration and operation of the brake assistance device of the vehicle according to the present invention.
    1 is a view showing a schematic configuration of a brake assistance apparatus of a vehicle according to the present invention, the brake assistance apparatus shown in the auxiliary brake line configured by using the auxiliary cylinder 10 in the brake line 5 of the conventional brake system ( 5 ') is installed in parallel, and the brake of the auxiliary brake line 5' is operated by operating the above auxiliary cylinder 10 by using the vehicle's deceleration detecting means 7, the accelerator 8, and the control switch 9. To control the pressure and finally assist the brake pressure control of the brake wheel cylinders 6 and 6 '.
    The auxiliary cylinder 10 is configured to include a reciprocating piston therein, an electromagnet for operating the piston, and a return spring for returning the piston, when the current is supplied to the electromagnet, between the electromagnet and the piston. The repulsive force acts to increase the brake line pressure of the auxiliary brake line 5 ', and when the supply of current is cut off, the return force of the return spring acts to lower the brake pressure of the auxiliary brake line.
    In the auxiliary cylinder 10 and the auxiliary brake line (5 '), a control valve 11 is installed in some cases to operate simultaneously with the auxiliary cylinder.
    That is, when the auxiliary cylinder 10 is operated, it opens to increase the pressure of the auxiliary brake line 5 ', and when the auxiliary cylinder is stopped and returned, the auxiliary cylinder 10 is blocked to operate to prevent the pressure drop of the brake line.
    However, when the control valve is not installed, the operation of the auxiliary cylinder can be performed in addition to raising the pressure of the auxiliary brake line.
    The control switch 9 is energized when there is a signal input at the control signal input terminal and supplies power to the auxiliary cylinder 10, and when there is no signal input at the control signal input terminal, the control switch 9 is disconnected to cut off the power supply to the auxiliary cylinder.
    The control switch can be configured as a power transistor as shown, but can also be configured using a relay switch.
    The deceleration detecting means 7 is a means for measuring the deceleration of the vehicle, and constitutes a kind of switch for supplying power to the control signal input terminal of the control switch 9 when the deceleration during the braking of the vehicle is equal to or greater than a certain level. .
    FIG. 2 illustrates an oscillation weight 17 oscillating in response to the traveling state of the vehicle and the action of the return spring 14 in the housing 18 as an embodiment of the deceleration detecting means, and a sensor lower plate configured to receive the oscillation weight. (16), the sensor upper plate 15 reciprocating according to the vibration of the oscillating weight, the movable terminal 12 integrally moving with the sensor upper plate, and energized when the movable terminal contacts the movable terminal at the upper limit of the movable terminal. It is configured to include a fixed terminal (13) (13 ') for supplying a current of.
    Therefore, when the vehicle is in braking state, the vibration weight inside the housing moves in one direction by the inertia force, and thus the sensor upper plate moves upwards.In addition, the greater the braking force, the greater the inertia force. The above-mentioned force is applied to push the sensor top plate so that the movable terminal contacts the fixed terminal.
    As a result of the above, when the vehicle suddenly brakes, the current from the power supply is supplied to the control signal input terminal side of the control switch 9 through the both sides 13 and 13 'and the movable terminal 12 of the fixed terminal. Allow the auxiliary cylinder, which is the operating part of this brake assist device, to operate.
    The interrupter 8 is a device provided between the deceleration detecting means 7 and the control signal input terminal of the control switch 9, and when the deceleration detecting means operates to supply power to the control signal input terminal of the control switch, It acts to interrupt this power supply so that the control switch 9 repeats energization and disconnection.
    Therefore, when the driver suddenly brakes, the auxiliary cylinder 10 operates to replenish the brake pressure of the brake line, and the pressure of the brake line includes holding pressure or stepping pressure by repeatedly operating and stopping the operation for a short time. Step up.
    Hereinafter, the operation of the brake assistance apparatus having the above-described configuration will be described with reference to FIG. 3.
    When the driver brakes while driving and the deceleration is higher than the reference level, the operation of the brake assistance device according to the present invention is started.
    The deceleration detecting means 7 detects the deceleration and checks the current deceleration state of the vehicle. When the deceleration is higher than the reference value, the deceleration detecting means 7 outputs a control signal to the control switch 9 so that the control switch 10 is energized so that the auxiliary cylinder 10 ) To supply power.
    When the control switch 9 is energized and the auxiliary cylinder 10 is operated, the auxiliary brake pressure is generated in the auxiliary brake line, thereby assisting the pressure increase of the brake wheel cylinder.
    In particular, the brake assisting apparatus of the present invention controls the control signal to the control signal input terminal of the control switch using the interrupter 8, so that the operation of the auxiliary cylinder 10 is repeatedly operated and stopped, so that the pressure holding is not a simple pressure rise. Or to have a pressure rise form including a reduced pressure.
    That is, when the auxiliary cylinder 10 is operated during the brake pressure increase, the pressure increase of the brake line 5 is assisted to increase the pressure increase slope as shown in FIG. 3, while the supply of current to the auxiliary cylinder is stopped. When the auxiliary cylinder is being returned, the auxiliary cylinder 10 absorbs the pressure increase of the brake line 5 so that the auxiliary cylinder 10 is in the pressure holding state or the pressure reducing state.
    As a result, as shown in Fig. 3, step-ups are performed. At this time, the control of the step-up slope and the rise cycle is based on the interruption period of the interrupter 8, the cut-off period, the capacity of the auxiliary cylinder, and the speed of the pressure rise.
    By providing a brake assistance device for a vehicle of the above-described configuration, it is possible to determine the sudden braking of the vehicle and in this case assist the pressure rise of the brake line and enable the stepping up so that the pressure of the brake can be stepwise even if the driver does not step on the pedal moon. It was possible to raise.
    Therefore, the braking distance is reduced during braking of the vehicle as well as preventing the seizure of the wheel due to sudden braking, thereby improving the stability of the vehicle and the convenience of driving at low cost.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] An automobile having a brake system comprising a brake pedal, a brake booster, a brake master cylinder, a brake line and a brake wheel cylinder;
    A deceleration detecting means for detecting a deceleration of the vehicle; an auxiliary brake line communicating with the brake line to assist the pressure of the brake; increasing pressure of the auxiliary brake line by pushing a piston using an electromagnet; An auxiliary cylinder configured to provide power to an electromagnet in the auxiliary cylinder when a deceleration higher than a reference is detected from the deceleration detecting means; and an interrupter to repeatedly control the control power of the control switch. Brake assistance device of a vehicle, characterized in that.
    [2" claim-type="Currently amended] According to claim 1, The deceleration detecting means comprises a housing; a return spring; Vibrating weight is installed in the housing and vibrating according to the action of the vehicle and the return spring; A sensor lower plate configured to receive an oscillating weight; A sensor upper plate reciprocating according to the vibration of the oscillating weight; A movable terminal integrated with the sensor upper plate and moving; And a deceleration detecting means including a fixed terminal which is energized when the movable terminal comes into contact with the movable terminal at the upper limit of the movable terminal and supplies a current to the power supply unit.
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    同族专利:
    公开号 | 公开日
    KR100211708B1|1999-08-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-08-02|Application filed by 정몽규, 현대자동차 주식회사
    1997-08-02|Priority to KR1019970037076A
    1999-03-05|Publication of KR19990015164A
    1999-08-02|Application granted
    1999-08-02|Publication of KR100211708B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970037076A|KR100211708B1|1997-08-02|1997-08-02|Auxiliary brake system of a vehicle|
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