KR20000017959A - Multi-prevention device for sudden oscillation of vehicle - Google Patents

Abstract

PURPOSE: A multi-prevention device is provided to control devices and engines equipped at a vehicle as actively coping with sudden oscillation accident. CONSTITUTION: A multi-prevention device is composed of: a control circuit(1) for maintaining an engine with a low speed as an adequate air quantity to a fuel by controlling the fuel in a minimum supply quantity as operating a fuel controller(SB) and an air controller(SA) if the voltage over a specific rpm is detected when starting the engine; a delay circuit for maintaining the engine controlled with a low speed for an established time with a low speed; a control circuit(2) for stopping the starting of the engine by intercepting power supplied to the air controller(SA) and to a fuel supply device(PS) if the voltage over rpm of sudden oscillation restriction is detected; an accelerator sense circuit for not controlling the engine stoppage and maintaining the engine with low speed according to the rpm if the accelerator is being operated.

Description

Multiple prevention device for car sudden start {.}

The present invention is an electronic control device designed to prevent an accident of automobile acceleration. Since car accidents are directly related to life, multiple prevention devices have become necessary to prevent them. In order to cope with sudden start, which may happen at any time, start is only applied when the brake pedal is pressed.In case of a sudden start after a start, the control circuit 1 detects this and turns on the warning brake and lights up the engine speed immediately. If this situation is maintained for a few seconds, an alarm will sound and the engine will be automatically stopped after a while while the vehicle can be parked on the side of the road. If sudden start occurs in the above condition, the control circuit 2 detects this and immediately stops the engine.

As described above, it is characterized by being designed for the purpose of coping with accidents by fundamentally coping with the situation of sudden oscillation failure.

In general, a method known to be mounted on an export vehicle is a device that does not start until the brake is started and a sudden start failure occurs at the beginning of the startup, so that the air is blocked to prevent excessive air from entering the throttle valve up to 15 seconds at the beginning of the startup. Device. "Jun 25 Sports Chosun information" (the above method prevents air flow through the throttle valve to release harmful substances such as smoke every time the vehicle is started regardless of sudden start) or by detecting the sudden rise of the engine rpm, There's a way to stop it, but it's not a solution because the engine rpm spikes occur while driving. When the engine is quick start (a technology in which the driver uses the brakes to accelerate), the engine speed instantly rises to 3500 rpm, or when the engine brake is applied at a steep slope, the engine rpm is 2500 rpm at idle regardless of the driver's intention. Soaring over.

If a car driving at high speed suddenly stops in the above state, the following vehicle leads to an accident. Sudden oscillation cannot be prevented by the above method. In fact, luxury cars such as L's of Chuncheon or Talent K's BMW, who suffered a sudden rash (MBC morning news on June 7, 1999) while driving in an apartment complex, were killed by the brakes during a sudden start. It is considered that this method is not a fundamental measure because it cannot stop the car by itself and sudden start may occur not only at the start of the start but also during driving.

The engine can be started only when the brake is applied first, and then the engine is rapidly lowered to low speed immediately when the engine rpm is detected as a sudden acceleration condition after starting. If the driver is overspeed and the vehicle stops, unlike the driver's intention, the driver is connected to the accident by the following vehicle. When the engine rpm is suddenly increased or suddenly started due to the fault of the vehicle, it detects this and automatically decelerates the engine rpm to keep it at low speed, and the brake light turns on as a warning to warn the rear vehicle. An alarm will sound.

Therefore, the engine automatically stops after one or two minutes to park the vehicle on the shoulder at low speed. Separating between the primary control unit and the secondary control unit is to prevent the accident by stopping the vehicle completely after the warning because it is collided by the rear car when the vehicle suddenly stops due to the operation of the primary control unit. It is a device to stop the engine completely by the secondary control device in case of car control. It is characterized by the fact that it is designed to fundamentally cope with such a sudden situation.

1 is a configuration circuit diagram of the present invention;

FIG. 2 is another configuration circuit diagram (dependent) in FIG.

Figure 3 is a circuit diagram showing the block diagram of the figure

4 is a circuit position and schematic diagram of the present invention.

<Explanation of symbols for the main parts of the drawings>

rpm: automobile engine rotation SA: air conditioner

PS: Fuel supply device (P): rpm signal input terminal

Q1 to Q6: Transistors C1 to C10: Condenser

L1-L6: Relay (RELAY) BZ: Buzzer

SB: Fuel regulator SW1: Switch mounted on the accelerator pedal

D1 ~ D13: Silicon Diode SW2: Switch

VR1 to VR2: Volume (variable resistance) R1 to R10: Resistance

(Timer A), (Delay Circuit), (Timer B): Timer Circuit by IC

ON terminal: Automobile ignition switch ON terminal (engine key ON terminal)

Hereinafter, described in detail by the accompanying drawings as follows.

The contacts 16 and 17 of the relay L3 of the brake control section (starting circuit A) are open, so that the fuel supply system PS and the air regulator SA are The voltage is cut off and the ignition does not start. Therefore, when you press the brake pedal, the brake switch The relays L3 are turned on by the D10 and D9 connected to the terminals, so that the contacts 14 and 15 are turned on, and that the fuel supply device PS and the air conditioner SA are connected by the interlocked contacts 16 and 17. The terminal will be turned on and start up. Silicon diode D9 is for power supply to turn on relay L3 when the brake pedal is released. When the engine rpm suddenly rises due to a sudden start due to a failure, C2 is charged by the variable resistors VRI, C1 and D1 to the rpm detection voltage of the rpm detection terminal P of the engine, and the C2 voltage is supplied to the bias voltage of Q1. The bias voltage value of the transistor Q1 is determined by the voltage R2 / R3 ×, and Q1 and Q2 are turned on and off by a constant engine rpm. The Q1 and Q2 are turned on by the engine rotation sensing voltage in the rapid start state, and thus the relay L1 is turned on. Relay contact 1,2,3,4 is turned ON by L1 and The voltage is supplied to the operating power of the connected SB and SA (fuel regulator, air regulator), so that the SB and SA are turned on. Therefore, the engine RPM is maintained at low speed (≒ 1300 rpm) with a small amount of fuel supply and the amount of air suitable for the fuel amount. At the same time, the contact 2 The voltage is supplied to the stop light by D3 and the power of the delay circuit IC, and the relay L6 and the contacts 5 and 6 connected to the delay circuit are turned on so that the relay L1 is continuously turned on by the D2 connected to the contact line 6 and the contact line 6 is of The voltage is buzzed by the connected contacts 11 and 12, and at the same time, the power is supplied to the timer B by the D6 connected to the contact 11, and the Q5 is turned on after 1 to 2 minutes set by the C5 and R8, so that the relay L5 is turned on. And the relay L2 connected to the contact line 13 of L5 is turned on. Thus the ignition switch of contacts 7 and 9 The voltage is switched on with the relay L2 ON and the contacts 9 and 10 are shorted. Therefore, the power supply of the fuel supply device PS and the air conditioner SA is stopped and the engine is stopped. At the same time, the contact 7,8 is turned on, and the brake left and right stop lights are turned on by D8. VR2, C3, D4, C4, R4, Q3 and Q4 of the control circuit 2 are for secondary controller rpm sensing and relay L2 driving. As the driver suddenly accelerates and accelerates, the driver presses the accelerator pedal. At this time, the accelerator pedal switch SW1 is turned on so that D11 and D12 connected to SW1 are grounded by SW1, and D11 and D12 are bias voltages of transistors Q1 and Q3. Q1, Q2, Q3, and Q4 (L1) (L2) remain in the OFF state so that the vehicle function is returned to its original state.

Therefore, the car operates normally regardless of whether or not there is a sudden acceleration. In this situation, when the sudden start occurs, the driver releases the accelerator (acceleration and closing) or brakes, so the sudden start is released by (control circuit 1) and (control circuit 2). Since the rapid start-up accident occurs mainly at the start-up, the timer A may be operated only for a certain time required by (Timer A) or may be operated continuously by (SW2), where the circuit is operated by a timer for about 10 to 15 minutes. It was made. (Timer A) is controlled by condenser C9 and resistor R9. (Timer A) is operated immediately after ON of ignition switch (starting key), and whether timer operation is continued or not (SW2) is ON ↔ 0FF. Designed as above, it can be used as a sudden start prevention device in all cars regardless of automatic transmission car and manual transmission car. The present invention is a useful design to achieve the object as described above.

As described above, the present invention maximizes the effect of the present invention in achieving the object by systemizing preventive devices that have been properly dealt with based on all possible situations, rather than a single prevention device. Therefore, the rapid-car of any situation can have the function as a multiple prevention device that can be solved.

Claims (2)

A brake control and start circuit A for controlling the fuel supply device PS and the air conditioner SA to operate based on the ON terminal power supply of the ignition switch only when the brake is operated by a signal of the brake switch; The rpm sensing voltage of the rpm sensing terminal P of the engine is detected as a voltage by the variable resistor VR1 and the condenser C1 to control the relay L1 through the transistors Q1 and Q2, and the relay L1. Fuel supply control fuel control device (SB) and air control device (SA) through the control when the engine is detected a voltage higher than a predetermined rpm to operate the fuel control device (SB) and air control device (SA) A control circuit 1 for controlling the engine to a minimum supply amount and maintaining the engine at a low speed with an amount of air suitable for the fuel; A delay circuit for maintaining the engine controlled at a low speed for a predetermined time; The rpm sensing voltage of the rpm sensing terminal P of the engine is sensed as a voltage through a variable resistor and a capacitor C3 to control the relay L2 through the transistors Q3 and Q4, and the relay 12 is controlled. Air control device (SA) and fuel supply device (PS) controlled by the starter circuit A through the control of the supply of the ignition switch on-terminal power, and also controls the operation of the left and right stop lights to pre-determined at engine start A control circuit 2 for stopping the engine starting by cutting off the power supplied to the air conditioner SA and the fuel supply device PS when a voltage exceeding the sudden start limit rpm is detected; The operation is started by the operation signal of the relay L1 of the control circuit 1, the buzzer BZ is operated, the time is checked for a predetermined time, and the engine is operated by the operation of the delay circuit for the predetermined time. Low-speed maintenance timer B for keeping the engine at a low speed and controlling the relay L2 to stop the engine after the set time; After engine start, timer A is operated by ON / OFF selection of switch SW2, and the power of the ignition switch ON terminal is supplied to the operating power of each part, and the operation of each part is operated at the time set from the start of engine start. A circuit operation timer A for causing; When the switch SW1 is installed to detect the operation of the accelerator (accelerator pedal), and the accelerator detection switch SW1 detects the accelerator operation, the operation of the control circuit 1 and the control circuit 2 is performed through the diode D11 and the diode D12. When the accelerator is operating by bypassing the power supply, the multiple accelerator prevention device of the vehicle, characterized in that it consists of an accelerator detection circuit to prevent engine stop and engine low speed maintenance control according to rpm. The fuel control device SB according to claim 1, wherein the rpm sensing signal of the terminal (P) is detected as a voltage through the variable resistor VR1 and the condenser C1, and is relayed by the relay L1 through the transistors Q1 and Q2. A control circuit 1 for controlling the air conditioner SA to lower the engine rpm at a low speed; A delay circuit that sets the engine low speed as a timer B and keeps the engine low for a set time; An accelerator pedal sensing device which bypasses the operating power supply of the transistor Q1 of the control circuit 1 by the switch SW1 and the diode D11 when the accelerator pedal is in operation, so as not to control the engine; And a switch SW2 for controlling an operation time of the control circuit 1 and a timer A.