• 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:
    The present invention is a shaft for an actuator of an accelerator, and in the related art, the shaft has a simple rod shape, so that the connection is difficult and fragile. 3, the step motor 16 is connected to the output terminal of the ECU 14 to which the step sensor 12 of the accelerator pedal 10 is connected, and the step motor 16 is connected to the case 18. The drive shaft 20 is coupled to the outside to penetrate the inside of the case 18, the pinion 22 of the drive shaft 20 is interlocked with the transmission gear 24, the operating gear 26 on one surface of the transmission gear 24 Is coupled, the guide rail 28 is installed on the inner surface of the case 18, the shaft 32 is coupled to penetrate outside the case 18 at the front end, the shaft 32 is controlled by the ECU 14 In operating the throttle linkage 2, a flat connection portion 34 and a perforation portion 36 are formed at one end of the shaft 32, and a perforation portion 38 is formed at the other end.
    公开号:KR19980059832A
    申请号:KR1019960079177
    申请日:1996-12-31
    公开日:1998-10-07
    发明作者:주성호
    申请人:김영석；아시아자동차공업 주식회사；
    IPC主号:
    专利说明:

    Accelerator Shaft
    The present invention relates to an actuator shaft of an accelerator, and more particularly, to an actuator shaft of an accelerator that adjusts an opening value of a throttle valve under the control of an ECU (Electronic Control Unit).
    In general, a fuel injection system for obtaining output of a vehicle engine may be divided into an intake system and a fuel system, including a control system.
    Here, the intake pipe is a system for forming fuel gas by mixing the injected fuel with the outside air. For this purpose, the air intake cylinder is composed of an air cleaner, a throttle body, an intake manifold, a surge tank, and the throttle valve of the throttle body is an intake manifold. The output of the engine can be arbitrarily adjusted by the user by adjusting the flow rate of the incoming air.
    That is, the engine ECU adjusts the output of the engine by measuring the intake flow rate of the outside air from the airflow sensor installed in the intake cylinder and injecting a fuel suitable thereto.
    Therefore, the opening degree of the throttle valve determines the output of the engine, and the vehicle accelerator pedal is used to control the opening degree of the throttle valve.
    The throttle valve is mechanically interlocked with the accelerator pedal, and as shown in FIG. 1, the cable 1 connected to the accelerator pedal is operated in accordance with the stepping force of the accelerator pedal (not shown), and is fan-shaped by the tension of the cable 1. The opening value of the disk-shaped throttle valve (not shown) coupled to the throttle linkage (2) coaxially with the throttle linkage (2) is determined.
    However, the throttle linkage 2 for opening such a throttle valve has a problem in that it is difficult to perform overall engine control with other electronic controllers because it is simply and mechanically interlocked with the accelerator pedal and the cable 1.
    In other words, the ECU that performs the general control of the engine needs to adjust the opening value of the throttle valve suitable for the driving state despite the operation of the accelerator pedal. The throttle valve is independently controlled by the accelerator pedal and simple without being controlled by the ECU. It can only be controlled by the ECU because it operates only mechanically.
    For example, when a sudden start occurs due to the driver's inadequate operation of the accelerator pedal when the vehicle starts to stop, the ECU detects this from the driving sensor and gradually opens the throttle valve to prevent an accident due to the sudden start. In order to maintain the safety distance of the accelerator pedal, it is necessary to prevent further acceleration of the throttle valve by preventing the opening of the throttle valve, and such a control operation cannot be expected by the simple operation to the cable (1).
    In addition, when the cable 1 is loosened, the play of the accelerator pedal is increased, causing inconvenience to the user, and even when the pedal is fully pressed, the throttle linkage 2 cannot be pulled out to the maximum, so that the maximum output of the engine does not occur. there was.
    Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide an actuator of a vehicle accelerator under control of an ECU, and another object thereof is to improve a shaft interlocked with a rack gear.
    The present invention for this purpose is that the step motor is connected to the output terminal of the ECU connected to the pedal pedal sensor of the accelerator so that the opening value of the throttle valve is controlled by the ECU with the operation of the accelerator pedal, pinion and rack gear, etc. by the step motor The interlocking rod acts integrally with the rack gear to operate the throttle linkage.
    Therefore, when the operator manipulates the accelerator pedal, the ECU controls the step motor by the stepping sensor, and the throttling kit is operated based on this. The throttle valve is operated in spite of the user's erroneous operation of the accelerator pedal by various control programs set in the ECU. The opening value of can be determined, and in particular, the end of the shaft is flattened and a perforation is formed to facilitate the connection and to make a solid connection with the rack gear.
    1 is an explanatory diagram showing a driving state of a conventional accelerator.
    2 (a) is a configuration diagram of the actuator according to the present invention,
    (B) is a side cross-sectional view of the actuator according to the present invention.
    3 is a perspective view of a shaft according to the present invention.
    Explanation of symbols for the main parts of the drawings
    2: throttle linkage 10: Excel pedal
    12: step sensor 14: ECU
    16: step motor 18: case
    20: drive shaft 22: pinion
    24: transmission gear 26: operating gear
    28: guide rail 30: rack
    32: shaft 34: connection
    36: drilling part 38: drilling part
    40: grommet 42: wrinkles
    44: cable
    The present invention will be described in detail with reference to the accompanying drawings.
    According to the present invention, the step motor 16 is connected to the output terminal of the ECU 14 to which the step force sensor 12 of the accelerator pedal 10 is connected, and the step motor 16 is coupled to the outside of the case 18 so that the drive shaft ( 20 penetrates into the case 18, the pinion 22 of the drive shaft 20 is interlocked with the transmission gear 24, and the shaft 32 penetrates out of the case 18 at the tip of the rack gear 30. ) Is combined to form a flat connection portion 34 and a perforation portion 36 at one end of the shaft 32 in the shaft 32 to operate the throttle linkage 2 under the control of the ECU 14. Two perforations 38 are formed.
    Exemplary Drawings Fig. 2 (a) (b) is a configuration diagram showing the actuator of the accelerator according to the present invention, the present invention is the ECU 14 and the throttle so that the throttle linkage 2 is operated by the control of the ECU 14 The linkage 2 is connected via an actuator.
    Since the control of the ECU 14 is based on the driver's operation of the accelerator pedal 10, another control means is added thereto so that the actuator must be operated in accordance with the operation of the accelerator pedal 10.
    Therefore, the operation of the accelerator pedal 10 should be sensed by the ECU 14, and the stepping force sensor 12 detects it, and from this, the ECU 14 controls the actuator.
    The stepping force sensor 12 is a kind of variable resistor, which is configured to change the signal sent to the ECU 14 by changing the position of the contact according to the displacement of the accelerator pedal 10 and the variable of the resistance.
    Accordingly, the ECU 14 controls the rotation angle of the step motor 16 based on this, and the displacement of the shaft 32 is controlled in accordance with the rotation of the step motor 16.
    To this end, the rotational motion of the step motor 16 is required to change the linear motion of the shaft 32, the present invention is to change the motion by the combination of the pinion and the rack gear.
    That is, the pinion 22 coupled to the drive shaft 20 of the step motor 16 interlocks the transmission gear 24, and one side of the transmission gear 24 has an operating gear 26 as shown in FIG. 3. Are combined.
    The pinion 22 is represented by rotation of the transmission gear 24 and the operating gear 26, and the operating gear 26 is configured to interlock the rack gear 30.
    Therefore, the rotation of the step motor 16 is converted to the linear motion of the rack gear 30, and in the case 18 to maintain the linear motion of the rack gear 30 in the case 18 The guide rail 28 is provided.
    That is, the guide rail 28 is in close contact with the rack gear 30 to overcome the assembly tolerance of the rack gear 30 and the operating gear 26 and to maintain the correct straight path of the rack gear 30. It is supposed to slide.
    The shaft 32 penetrates out of the case 18 and moves integrally with the rack gear 30. A grommet 40 is mounted in the penetrating portion to prevent foreign matter such as dust from entering the case 18. .
    The grommet 40 is formed by repeatedly forming a plurality of wrinkles 42 in the inner circumference, the inner circumferential surface of the pleated portion 42 is in close contact with the outer circumferential surface of the shaft 32, the foreign matter on the outer circumferential surface of the shaft 32 18) It is prevented from flowing inward.
    Therefore, according to the above-described configuration, the present invention causes the ECU 14 to drive the step motor 16 by the stepping force sensor 12 when the pedal pedal 10 is stepped on and thus the rotation of the step motor 14 can be achieved. It is converted into the linear motion of the size word 30 and accordingly the shaft 32 is to operate the throttle linkage (2).
    Here, the operation of the throttle linkage 2 has to be converted back into a rotary motion, which is connected to the shaft 32 and the cable 44 to be rotatable, however, such a cable 44 is conventionally Unlike the cable, the cable is not directly connected to the accelerator pedal 10, and the actuator is installed at a position adjacent to the throttle linkage, so that the length of the cable 44 is minimized. It is easy to couple bolts, pins, cables, etc. using the perforated portion 36 of the), and the rack gear is firmly coupled to the perforated portion 38.
    As described above, according to the present invention, the actuation rod operates by throttling the pinion and the rack gear by the step motor, so that the ECU controls the throttling kit so that the appropriate engine control is performed and the engine output control due to the cable tension loss. Not only does the difficulty of eliminating the effect of the bolts, pins, and cables can be easily connected by the perforations 36, and the rack gears are prevented from being separated from the rack gears even when the racks are connected to the perforations 38 by vibration. .
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] The step motor 16 is connected to the output terminal of the ECU 14 to which the step sensor 12 of the accelerator pedal 10 is connected, and the step motor 16 is coupled to the outside of the case 18 so that the drive shaft 20 is connected. The case 18 penetrates into the case 18, and the pinion 22 of the drive shaft 20 is interlocked with the transmission gear 24, and the operation gear 26 is coupled to one surface of the transmission gear 24, while the case 18 is provided. The guide rail 28 is installed on the inner surface, and the shaft 32 is coupled to the front end of the case 18 so that the shaft 32 operates the throttle linkage 2 under the control of the ECU 14. The shaft for the actuator of the accelerator in which the connection part 34 and the perforation part 36 which are flat in one end of the shaft 32, and the perforation part 38 in the other end are formed.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1996-12-31|Application filed by 김영석, 아시아자동차공업 주식회사
    1996-12-31|Priority to KR1019960079177A
    1998-10-07|Publication of KR19980059832A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019960079177A|KR19980059832A|1996-12-31|1996-12-31|Accelerator Shaft for Actuator|
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