KR101631235B1 - A coercion output limiting and monitering apparatus for in-use vehicles - Google Patents

Abstract

The present invention relates to a coercion output limiting and monitoring apparatus for a vehicle in use, more specifically, which can minimize air pollution by reducing emission of a nitrogen oxide (NO_X), control engine output to be low in a control module, additionally and forcibly control engine torque, and check whether a shortage of a urea aqueous solution is supplemented and replaced, or an SCR device is normally operated by a driver. The coercion output limiting and monitoring apparatus for a vehicle in use comprises: a control module; a buzzer; a lamp; an engine control motor; and an interlocking relay.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a coercion output limiting and monitoring apparatus for in-

In the case of a mechanical engine in a vehicle or a construction machine in which an SCR device is separately mounted for the purpose of reducing nitrogen oxides (NOx) in a running vehicle without a selective catalytic reduction (SCR) device, (NOx) is out of the reference value, the control module forcibly restricts the output indicated by the rpm of the engine control motor, thereby causing inconvenience to the driver and forcibly causing the urea aqueous solution In the case of an electronic engine, when the urea aqueous solution is insufficient, the shortage is not filled, when the urea aqueous solution is not used, or when the aqueous solution of nitrogen oxides (NOx ) If this value is exceeded, it is recognized that the accelerator pedal of the car or the construction machine is stepped less and the control module In addition, in the case of an electronic engine, another engine output limitation method is used. In the case where the urea aqueous solution is insufficient, when the shortage is not filled, when the urea aqueous solution component is not present, or when the nitrogen oxide (NOx) In case of escaping, the control module can control the engine torque by transmitting the protocol to the ECU mounted on the vehicle using the CAN communication. In case of both mechanical engine and electronic engine, In the case of arbitrary modification, the signal is transmitted from the control module to the engine control motor (or relay switch), and then the signal transmitted to the engine control motor or the engine is transmitted or blocked to control the operation of the vehicle. When the amount is insufficient and when it is not an urea aqueous solution component or when nitrogen oxides (NOx) The buzzer sounds an alarm by the control module signal when the reference value is exceeded. This allows the operator to check whether the urea aqueous solution is replenished, replaced, or the normal operation of the SCR device. When the amount of urea aqueous solution is insufficient By allowing the lamp to turn on by signal from the control module when the component is not an aqueous solution component or when nitrogen oxides (NOx) deviate from the reference value, the operator can inspect for deficiency of urea aqueous solution, replace, or check the normal operation of the SCR device. And a monitoring device for controlling the forced output of the vehicle.

In the case of conventional diesel automobiles, construction machines, and agricultural machinery, regulations for exhaust gas have been strengthened, and a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF) (CO), hydrocarbons (HC), particulate matte (PM), and the like, and a selective catalytic reduction (SCR : Selective catalystic reduction device.

However, when a selective catalytic reduction (SCR) apparatus is installed, it is inconvenient to check the urea aqueous solution tank (Urea), which is approximately one thousand liters per liter, before inserting the urea aqueous solution tank.

However, there is a problem in that it is difficult to expect a reduction effect of NOx when the urea aqueous solution tank is insufficiently filled with the urea aqueous solution or when the SCR system is not operated normally, .

In addition, it will adversely affect the pollution of air pollution that most countries of the world are interested in.

Therefore, in the case of an automotive or construction machine equipped with a selective catalytic reduction (SCR) device, if the operator does not fill when the urea aqueous solution is insufficient, or if the SCR device fails to operate normally It is necessary to limit the output of the automobile or construction machine forcibly because it adversely affects the air pollution. Also, when the quantity and quality of the urea aqueous solution are insufficient or the NOx is out of the standard value, It is necessary to lower the engine output and to prevent the remodeling of the running vehicle. Therefore, it is urgently required to develop a forced output limiting device for the running vehicle and a monitoring device.

KR 10-2013-0034567 (March 29, 2013)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above problems, and it is an object of the present invention to provide a vehicle or a construction machine, which is equipped with a SCR device separately for the purpose of reducing NOx in a driving vehicle not equipped with a selective catalytic reduction (SCR) In the case of a mechanical engine, by forcibly restricting the output appearing in rpm of the engine control motor in the control module when the urea aqueous solution is insufficient and the urea aqueous solution component is not filled, or when the nitrogen oxide (NOx) The present invention is directed to a forced output limiting and monitoring apparatus for a vehicle that can incur inconvenience to a driver and thereby induce injection of urea aqueous solution to reduce the emission of nitrogen oxides (NOx) to minimize air pollution.

Another object of the present invention is to provide a method of controlling an engine in which an accelerator pedal is less depressed in an automobile or a construction machine when the urea aqueous solution is insufficient and when the urea water component is not contained or when the nitrogen oxide (NOx) And to provide a forced output limiting and monitoring device for a vehicle that can control the engine output at a low level in the control module.

It is another object of the present invention to provide an engine control motor or an engine (hereinafter, referred to as " engine ") that receives a signal from a control module when a driver removes or arbitrarily modifies the apparatus with impure intention in the case of both a mechanical engine and an electronic engine, And to prevent or prevent the vehicle from being started or stopped by transmitting or blocking a signal transmitted to the vehicle.

It is another object of the present invention to provide a buzzer that makes the buzzer sound an alarm by the signal of the control module when the amount of the urea aqueous solution is insufficient, when the component is not an aqueous urea solution component or when the nitrogen oxide (NOx) And to check whether the SCR device is operating normally or not.

Another object of the present invention is to provide a method of controlling a lamp by turning on a lamp by signals of a control module when the amount of urea aqueous solution is insufficient and when the amount of urea aqueous solution is not a component or when nitrogen oxide (NOx) And to provide a forced output limiting and monitoring device for a vehicle that enables checking whether a replacement, replacement, or normal operation of the SCR device is possible.

According to an aspect of the present invention, there is provided an apparatus for limiting and monitoring a forced output for a driving vehicle, the apparatus comprising: an SCR device for driving a vehicle; a urea tank and a urea dosing control unit connected to the urea tank; The injection rate of urea injected into the urea aqueous solution tank is calculated and the injected amount of the urea aqueous solution is controlled and the line of the urea aqueous solution is injected into the urea aqueous solution tank The amount of urea aqueous solution in the urea aqueous solution tank in the urea aqueous solution dosing control unit controlling the heating of the urea aqueous solution tank and controlling the exhaust temperature, the amount of urea aqueous solution, the quality of urea aqueous solution, and the nitrogen oxide (NOx) And a function of receiving the signal related to the quality of urea aqueous solution in the urea aqueous solution tank in the urea aqueous solution dosing control unit, A function of receiving a NOx signal mounted on a post-treatment exhaust pipe, a function of making buzzer sound when the amount of urea aqueous solution is insufficient, a function of turning on the lamp when the amount of urea aqueous solution is insufficient, A signal for forcibly limiting the output represented by the rpm of the urea aqueous solution tank, and a function for transmitting or blocking a signal transmitted to the engine control motor to the engine via a linkage relay. If the urea aqueous solution is less than 20%, the warning light is turned on. If the urea aqueous solution is less than 10%, the warning lamp is turned on and the maximum rpm of the engine is reduced by 25% The control of the amount of urea urea in the urea solution tank that keeps the idle rpm and the concentration in the urea aqueous solution tank If a signal is received from the sensor, the warning lamp lights up if the reference value is above the reference value. If the reference value exceeds 30 minutes, the warning lamp lights up and the engine rpm decreases by 25%. If the reference value exceeds 1 hour, Urea urea solution in an aqueous solution tank that keeps the buzzer operation at 60 beeps per minute and the engine's maximum rpm by 50% and above the reference value for more than 4 hours, A control module for controlling quality; A buzzer having an alarm sound when the amount of urea aqueous solution is insufficient by the signal of the control module; A lamp having a function to light up when the amount of urea aqueous solution is insufficient by a signal of the control module; An engine control motor having a function of forcibly limiting an engine output when the amount of urea aqueous solution is insufficient by a signal of the control module; An interlock relay (or relay switch) having a function of transmitting or blocking a signal transmitted to the engine control motor; .

According to another aspect of the present invention, there is provided an apparatus for limiting and monitoring a forced output for a driving vehicle, the apparatus including a SCR device for a vehicle, a urea tank and a urea dosing control unit, , The injection rate of the urea solution injected into the urea aqueous solution tank is calculated and the injection amount of the urea aqueous solution is controlled and the urea solution is injected into the urea aqueous solution tank The urea solution in the urea aqueous solution tank in the urea aqueous solution dosing control unit which controls the heating of the line and urea aqueous solution tank and has a function of controlling the exhaust temperature, the amount of urea aqueous solution, the quality of urea aqueous solution and the nitrogen oxide (NOx) The function of receiving buzzer sound when the amount of urea aqueous solution is insufficient, A function of turning on the surface lamp and a function of transmitting or intercepting a signal that the accelerator pedal is judged to be less depressed when the amount of urea aqueous solution is insufficient is transmitted to the engine through an interlocking relay, When the urea aqueous solution is less than 20%, the warning light is turned on. If the urea aqueous solution is less than 10%, the warning lamp is turned on and the maximum rpm of the engine is decreased by 25% When the signal is received from the concentration sensor mounted on the urea aqueous solution tank, the warning light is turned on when the reference value is above the reference value, If it continues to occur, the warning lamp will turn on and the maximum rpm of the engine will decrease by 25%. When the buzzer is turned on, the buzzer is turned on 60 times, the maximum rpm of the engine is reduced by 50%, and the warning light is turned on for more than 4 hours. A control module for controlling the urea quality of the urea; A buzzer having an alarm sound when the amount of urea aqueous solution is insufficient by the signal of the control module; A lamp having a function to light up when the amount of urea aqueous solution is insufficient by a signal of the control module; (Or a relay switch) having a function of transmitting or blocking a signal recognized as being stepped on the accelerator pedal to the engine when the amount of urea aqueous solution is insufficient; An accelerator pedal that raises or lowers the engine output; .

In the present invention, in the case of an electronic engine, another engine output limitation method is used. In the case where the urea aqueous solution is insufficient, the shortage is not filled, the urea aqueous solution component is not used, or when the nitrogen oxide (NOx) And transmitting the protocol from the control module to the ECU mounted on the driving vehicle to forcibly control the engine torque.

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In the present invention, the control of the NOx reference value is performed by receiving a signal from the NOx sensor mounted on the post-treatment exhaust pipe. When the reference value is above the reference value, the warning lamp is turned on. If the rpm is decreased by 25% and the reference value is maintained for more than 1 hour, warning lamp lights up, buzzer operation of 60 times per minute, engine rpm is reduced by 50%, warning lamp lights up for more than 4 hours, The buzzer operation and the engine idle rpm are maintained.

As described above, the forced output limiting and monitoring apparatus for a vehicle according to the present invention has the following effects.

First, in the case of a mechanical engine in a vehicle or a construction machine in which an SCR device is separately mounted for the purpose of reducing nitrogen oxide (NOx) in a running vehicle without a selective catalytic reduction (SCR) device, (NOx) is out of the reference value, the control module forcibly restrains the output appearing as the rpm of the engine control motor, thereby inconveniencing the driver and forcibly causing the element The injection of the aqueous solution is induced to reduce the emission of nitrogen oxides (NOx), thereby minimizing air pollution.

Second, in the case of an electronic engine, when the urea aqueous solution is insufficient, the shortage is not filled, when the urea aqueous solution component is not present, or when the nitrogen oxide (NOx) is out of the reference value, It is possible to control the engine output at a low level in the control module. In addition, in the case of an electronic engine, another engine output limitation method is used. In the case where the urea aqueous solution is insufficient, the shortage is not filled, the urea aqueous solution component is not used, or the nitrogen oxide (NOx) By transmitting the protocol to the ECU mounted on the vehicle, the engine torque can be forcibly controlled.

Thirdly, in the case of both the mechanical engine and the electronic engine, when the driver removes or arbitrarily modifies the apparatus with impure intent, the signal is transmitted to the engine control motor or the engine from the interlock relay (or relay switch) The transmission signal can be transmitted or blocked so as to prevent the vehicle from running or starting.

Fourth, according to the present invention, when the amount of urea aqueous solution is insufficient, and when the component is not an urea aqueous solution component or when nitrogen oxide (NOx) is out of the reference value, an alarm sound is sounded by the buzzer by the signal of the control module, To replace, replace or check the normal operation of the SCR device.

Fifth, the present invention enables the lamp to be turned on by the signal of the control module when the amount of the urea aqueous solution is insufficient, when it is not the urea aqueous solution component or when the nitrogen oxide (NOx) is out of the reference value, , And to check whether the replacement or SCR device is operating normally.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a forced output limiting and monitoring apparatus for a vehicle in the case of a mechanical engine according to an embodiment of the present invention; FIG.
2 is a view showing a configuration of a forced output limiting and monitoring apparatus for a running vehicle in the case of an electronic engine according to an embodiment of the present invention.
3 is a diagram showing a configuration of a forced output limiting and monitoring apparatus for a running vehicle in the case of an electronic engine according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of related art or configuration may unnecessarily obscure the gist of the present invention, The description below will be omitted, and the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or the custom of the user, the operator, and the like. It should be understood that the present invention is not limited thereto.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a forced output limiting and monitoring apparatus for a vehicle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view showing a configuration of a forced output restriction and monitoring apparatus for a driving vehicle in the case of a mechanical engine according to an embodiment of the present invention. FIG. FIG. 3 is a diagram illustrating a configuration of a forced output limiting and monitoring apparatus for a vehicle in the case of an electronic engine according to another embodiment of the present invention.

The forced output limiting and monitoring device for a running vehicle according to the present invention includes an engine 1, an urea aqueous solution dosing control unit 2, an urea aqueous solution tank 3, an SCR device 4, a control module 10, an engine control motor 20, An accelerator pedal 21, a buzzer 30, a relay relay (or relay switch) 40, a lamp 50, and the like.

1, in the case of a mechanical engine of the present invention, a forced output limiting and monitoring device for a vehicle is composed of an SCR device 4, a urea tank 3 and an urea aqueous solution dosing control unit urea when the exhaust gas is generated in the driving vehicle by driving the engine 1 of the driving vehicle in the urea aqueous solution tank 3 in the urea aqueous solution dosing control unit 2, A function of receiving a signal related to the quality of urea aqueous solution in the urea aqueous solution tank 3 in the urea aqueous solution dosing control unit 2 and a function of receiving a signal related to the quality of urea aqueous solution in the urea aqueous solution dosing control unit 2, A function of causing the buzzer 30 to sound if the amount of urea aqueous solution is insufficient, a function of turning on the lamp 50 when the amount of urea aqueous solution is insufficient, and an output of rpm of the engine control motor 20 A signal that forcibly restricts Transmission interlock relay a signal to be transmitted to the function of the engine control motor 20 (or relay switch), the control module has a function to transfer or block the engine (1) through (40) (10) and; A buzzer (20) having a function of sounding an alarm when the amount of urea aqueous solution is insufficient by the signal of the control module (10); A lamp (50) having a function to light up when the amount of urea aqueous solution is insufficient by the signal of the control module (10); An engine control motor (20) having a function of forcibly limiting an engine output when the amount of urea aqueous solution is insufficient by a signal of the control module (10); An interlock relay (or relay switch) 40 having a function of transmitting or interrupting a signal transmitted to the engine control motor 20; Respectively.

2, in the case of the electronic engine of the present invention, the forcible output limitation and monitoring device for the running vehicle includes an SCR device 4, a urea tank 3, and an urea aqueous solution dosing control unit urea when the exhaust gas is generated in the driving vehicle by driving the engine 1 of the driving vehicle in the urea aqueous solution tank 3 in the urea aqueous solution dosing control unit 2, A function of causing the buzzer 30 to sound when the amount of the urea aqueous solution is insufficient, a function of turning on the lamp 50 when the amount of the urea aqueous solution is insufficient, A control module 10 having a function of transmitting or blocking a signal recognized as a stepping on the accelerator pedal 21 to the engine 1 through a link relay (or a relay switch) 40; A buzzer 30 having an alarm sound when the amount of urea aqueous solution is insufficient by the signal of the control module 10; A lamp (50) having a function to light up when the amount of urea aqueous solution is insufficient by the signal of the control module (10); (Or relay switch) 40 having a function of transmitting or blocking a signal recognized as a stepped-down operation of the accelerator pedal 21 to the engine 1 when the amount of urea aqueous solution is insufficient; An accelerator pedal (21) for raising or lowering the engine output; Respectively.

As shown in FIG. 3, in the case of an electronic engine, in the case where the urea aqueous solution is insufficient, the shortage is not filled, the urea aqueous solution component is not used, or the nitrogen oxide (NOx) The control module can transmit the protocol to the ECU mounted on the vehicle using the CAN communication to control the engine torque forcibly.

The function of each technical means constituting the forced output limitation and monitoring device for the vehicle according to the present invention will be described as follows.

FIG. 1 is a forced output limiting and monitoring device for a running vehicle in the case of a mechanical engine, and FIGS. 2 and 3 are forced output limiting and monitoring devices for a running vehicle in the case of an electronic engine. Duplicate technical means having the same function shall be described as one, and technical means not to be duplicated shall be described separately.

The SCR device 4 of the driving vehicle is connected to the urea aqueous solution tank 3 and the urea dosing control unit 2,

In the case of a mechanical engine, when the exhaust gas is generated in the vehicle by the driving of the engine 1 of the driving vehicle, the control module 10 controls the urea aqueous solution dosing control unit 2 in the urea aqueous solution tank 3 A function of receiving a signal related to the quality of urea aqueous solution in the urea aqueous solution tank 3 in the urea aqueous solution dosing control unit 2 and a function of receiving a signal related to the quality of urea aqueous solution in the urea aqueous solution dosing control unit 2, A function of causing the buzzer 30 to sound if the amount of urea aqueous solution is insufficient, a function of turning on the lamp 50 when the amount of urea aqueous solution is insufficient, and an output of rpm of the engine control motor 20 (Or a relay switch) 40 to the engine 1, and a function of transmitting or blocking a signal transmitted to the engine control motor 20 to the engine 1 via a link relay (or relay switch) 40. [

In the case of an electronic engine, the control module 10 controls the flow of the exhaust gas in the urea aqueous solution tank 3 in the urea aqueous solution dosing control unit 2 when the exhaust gas is generated in the running vehicle by driving the engine 1 of the driving vehicle. A function of causing the buzzer 30 to sound when the amount of the urea aqueous solution is insufficient, a function of turning on the lamp 50 when the amount of the urea aqueous solution is insufficient, (Or the relay switch) 40 to the engine 1 when the amount of the accelerator pedal 21 is insufficient.

The buzzer 20 has an alarm sound when the amount of urea aqueous solution is insufficient by the signal of the control module 10.

The lamp 50 has a function to light up when the amount of urea aqueous solution is insufficient by the signal of the control module 10. [

Further, in the case of a mechanical engine, the engine control motor 20 has a function of forcibly limiting the engine output when the amount of urea aqueous solution is insufficient by the signal of the control module 10.

The relay relay (or relay switch) 40 has a function of transmitting or interrupting a signal transmitted to the engine control motor 20.

Further, in the case of an electronic engine, the interlock relay (or relay switch) 40 has a function of transmitting or blocking a signal, which is recognized as a stepping on the accelerator pedal 21, to the engine 1 when the amount of urea aqueous solution is insufficient .

In the case of an electronic engine, another engine output limitation method is used. In the case where the urea aqueous solution is insufficient, the shortage is not filled, the urea aqueous solution component is not used, or the nitrogen oxide (NOx) It is able to control the engine torque by transmitting protocol to the ECU installed in the vehicle.

The accelerator pedal 21 is used to increase or decrease the engine output.

In the case of the mechanical engine and the case of the electronic engine as described above, the urea aqueous solution dosing control unit 2 calculates the injection rate of the urea aqueous solution (urea) injected into the urea aqueous solution tank 3, Controls the injection amount, controls the heating of the urea aqueous solution line and the urea aqueous solution tank, and controls the exhaust temperature, the amount of the urea aqueous solution, the quality of the urea aqueous solution, and the nitrogen oxide (NOx) sensor.

The control of the amount of urea aqueous solution in the urea aqueous solution tank 3 receives a signal from the level sensor mounted in the urea aqueous solution tank 3 and the warning lamp is turned on when the urea aqueous solution is less than 20% When the urea aqueous solution is less than 10%, the warning lamp and the maximum rpm of the engine are reduced by 25%. If the urea aqueous solution is less than 5%, the warning lamp and buzzer operation and the engine idle rpm are maintained.

When a signal is received from the concentration sensor mounted on the urea aqueous solution tank 3, the warning light is turned on when the urea aqueous solution tank 3 is above the reference value, The warning lamp lights up and the maximum rpm of the engine is reduced by 25%. If the reference value exceeds the reference value for more than 1 hour, the warning lamp lights up, the buzzer operation of 60 times per minute and the maximum rpm of the engine are reduced by 50% If it continues for more than the time, warning lamp lights, buzzer operation of 120 times per minute and engine idle rpm are maintained.

In addition, the control of the NOx reference value receives a signal from the NOx sensor mounted on the post-treatment exhaust pipe. If the reference value is above the reference value, the warning lamp is turned on. If the reference value is maintained for more than 30 minutes, If the alarm is on for more than 1 hour, if the buzzer is turned on at 60 times per minute and the maximum rpm of the engine is reduced by 50%. If the reference value is more than 4 hours, the buzzer lights, The engine idle rpm is maintained.

In an operation process of a selective catalytic reduction (SCR) device in an automobile or a construction machine equipped with the selective catalytic reduction (SCR) device 4, when urea (urea aqueous solution) is injected into an exhaust pipe, Ammonia. Thereafter, ammonia reacts with nitrogen oxides (NOx) to reduce nitrogen oxides (NOx). Here, urea is injected at an exhaust gas temperature of 150 占 폚 or higher, but urea is not injected at -5 占 폚 or lower.

The diesel oxidation catalyst (DOC), which is installed together with the SCR device 4, reduces carbon monoxide and hydrocarbons by catalytic reaction through high temperature of 150 to 300 ° C., And increases the ratio of NO2 in the exhaust gas. Although not shown in the figure, a particulate filter (DPF) that is installed together with the SCR device 4 collects particulate matter (PM) and accumulates particulate matter (PM) The catalyst is activated at a high temperature of 500 to 600 ° C. by using an additive to recollect and recycle particulate matter (PM).

As described above, the forcible output limitation and monitoring device for a running vehicle can be applied to a vehicle having a gasoline or diesel engine, and thus the application thereof is wide.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

1: engine 2: urea aqueous solution dosing control unit
3: Urea aqueous solution tank 4: Smoke reduction device
10: Control module 20: Engine control motor
21: accelerator pedal 30: buzzer
40: Relay relay (or relay switch) 50: Lamp

Claims (7)

A forced output limiting and monitoring device for a vehicle,
When the SCR unit of the vehicle is connected to the urea tank and the urea dosing control unit, when the exhaust gas is generated in the vehicle by driving the engine of the vehicle, the urea tank and the urea dosing control unit Controlling the injection amount of the urea aqueous solution, controlling the heating of the urea aqueous solution line and the urea aqueous solution tank, controlling the exhaust temperature, the amount of the urea aqueous solution, the quality of the urea aqueous solution, A function of receiving a signal related to the amount of urea aqueous solution in the urea aqueous solution tank in the urea aqueous solution dosing control unit having the function of controlling the nitrogen oxide (NOx) sensor and the function of receiving the signal related to the quality of the urea aqueous solution in the urea aqueous solution tank in the urea aqueous solution dosing control unit A function of receiving a signal, a function of receiving a NOx signal mounted on a post-treatment exhaust pipe, and a buzzer sounding when the amount of urea aqueous solution is insufficient A function for turning on the lamp when the amount of urea aqueous solution is insufficient, a function for forcibly limiting the output indicated by the rpm of the engine control motor, and a function for relaying signals transmitted to the engine control motor When the urea aqueous solution is less than 20%, the warning light is turned on. If the urea aqueous solution is less than 10%, the warning light is turned on and the engine is turned on. Of the total amount of urea in the urea aqueous solution tank which causes the warning lamp and buzzer operation and engine idle rpm to be maintained when the maximum rpm is reduced by 25% and the urea aqueous solution is less than 5% When a signal is received from the sensor, the warning lamp lights up when the signal exceeds the reference value, and the reference value is maintained for more than 30 minutes. If the warning light turns on and the engine's maximum rpm is reduced by 25%. If the reference value continues for more than 1 hour, the warning lamp lights up, 60 buzzer operations per minute, and the engine rpm is reduced by 50%. A control module for controlling the urea quality in the urea aqueous solution tank which causes the warning lamp to turn on, the buzzer operation of 120 times per minute and the engine idle rpm to be maintained;
A buzzer having an alarm sound when the amount of urea aqueous solution is insufficient by the signal of the control module;
A lamp having a function to light up when the amount of urea aqueous solution is insufficient by a signal of the control module;
An engine control motor having a function of forcibly limiting an engine output when the amount of urea aqueous solution is insufficient by a signal of the control module;
An interlock relay (or relay switch) having a function of transmitting or blocking a signal transmitted to the engine control motor; And a controller for controlling the output of the forced output for the vehicle. A forced output limiting and monitoring device for a vehicle,
The SCR unit of the vehicle is connected to the urea tank and urea dosing control unit,
When the exhaust gas is generated in the running vehicle due to the driving of the driving car, the injection rate of urea injected into the urea aqueous solution tank is calculated, the injection amount of the urea aqueous solution is controlled, And the signal related to the amount of urea aqueous solution in the urea aqueous solution tank in the urea aqueous solution dosing control unit having the function of controlling the exhaust temperature, the amount of the urea aqueous solution, the quality of the urea aqueous solution and the nitrogen oxide (NOx) sensor A function to cause the buzzer to sound if the amount of urea aqueous solution is insufficient, a function to turn on the lamp when the amount of urea aqueous solution is insufficient, and a function to recognize that the accelerator pedal is less depressed when the amount of urea aqueous solution is insufficient To or from the engine through an interlock relay, and a signal from a level sensor mounted on the urea aqueous solution tank If the urea aqueous solution is less than 20%, the warning light will be on. If the urea aqueous solution is less than 10%, the warning lamp will turn on and the maximum rpm of the engine will decrease by 25% When the signal is received from the concentration sensor mounted in the urea aqueous solution tank, the warning light is turned on when the reference value is above the reference value, and the reference value is maintained for 30 minutes or more If the alarm occurs, the warning light will turn on and the engine's maximum rpm will decrease by 25%. If the reference value continues for more than 1 hour, the warning lamp lights, 60 buzzer operations per minute and engine rpm are reduced by 50% When it occurs, the warning light turns on, buzzer operation 120 times per minute, and the urea that keeps the engine idle rpm Urea in the aqueous solution tank A control module for controlling the control module;
A buzzer having an alarm sound when the amount of urea aqueous solution is insufficient by the signal of the control module;
A lamp having a function to light up when the amount of urea aqueous solution is insufficient by a signal of the control module;
(Or a relay switch) having a function of transmitting or blocking a signal recognized as being stepped on the accelerator pedal to the engine when the amount of urea aqueous solution is insufficient;
An accelerator pedal that raises or lowers the engine output; And a controller for controlling the output of the forced output for the vehicle. 3. The method of claim 2,
In the case of an electronic engine, another engine output limitation method is used. In the case where the urea aqueous solution is insufficient, the shortage is not filled, the urea aqueous solution component is not present, or the nitrogen oxide (NOx) And transmitting the protocol to the ECU mounted in the control unit to control the engine torque forcibly. delete delete delete The method according to claim 1,
The control of the NOx reference value receives a signal from the NOx sensor mounted on the after-treatment exhaust pipe. If the reference value is above the reference value, the warning lamp lights up. If the reference value exceeds 30 minutes, the warning lamp and the maximum rpm of the engine decrease by 25% Warning buzzer lights up when buzzer lamp lights up for more than 1 hour, buzzer operation of 60 times per minute, maximum rpm of engine is reduced by 50%, warning lamp lights up for more than 4 hours, idle rpm and engine idle rpm And the output of the forced output limiting and monitoring device for the vehicle is controlled.

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