KR100629106B1 - A auto engine starting system and method of temperature comtroller for refrigreator car - Google Patents

Abstract

The present invention provides a temperature controller for a refrigeration vehicle that operates a freezer of a refrigeration tower using an engine of the vehicle, so that the engine start of the vehicle and the operation of the freezer can be automatically controlled according to the temperature of the freezer in the absence of a driver. The present invention relates to an automatic engine starting system and a method of a temperature controller for a refrigeration vehicle that maintains a constant temperature in a refrigeration tower even in the absence of a driver, thereby minimizing fuel consumption of the vehicle.

An automatic engine start system of a temperature controller for a refrigerator vehicle according to the present invention includes a mode setting unit for selecting a temperature setting and an automatic / manual mode in a refrigeration tower; A temperature sensor attached to the freezing tower and configured to detect a temperature in the freezing tower as an electrical signal in real time when the automatic mode is selected in the mode setting unit; A temperature signal converter which automatically generates an on / off signal to a temperature controller when the output signal from the temperature sensor is an operation / stop condition of the refrigerator; A power source and a temperature display unit which turn on / off a power lamp and a temperature display lamp of a temperature controller when an on / off signal is generated in the temperature signal converter; A control unit which sequentially receives the output signal of the temperature signal converter and generates a driving / blocking signal for driving an engine starting motor and a refrigerator; And an engine starting motor relay driver and a refrigerator relay driver for driving the engine starting motor driving relay and the refrigerator driving relay respectively by receiving the driving / blocking signal from the controller.

In addition, the automatic engine start method of the temperature controller for a refrigeration vehicle according to the present invention, when the automatic mode of the temperature controller is selected, the power lamp of the temperature controller is turned off and at the same time an electric signal of the temperature in the freezer tower from the temperature sensor installed in the freezer tower in real time. Receiving the first step; A second step of generating an on signal to the controller by the temperature signal converter when the temperature applied from the temperature sensor is a freezer driving condition; A third step of turning on a power lamp and a temperature display lamp of a temperature controller according to the on signal; When the power lamp of the temperature controller is turned on, the control unit outputs a driving signal to the engine starting motor relay driving unit to drive the engine starting motor driving relay. Driving a fourth step; A fifth step of generating, by the temperature signal converting unit, an off signal to the controller when the temperature applied from the temperature sensor is a stop condition of the refrigerator while the engine and the refrigerator are driven according to the above; The control unit outputs a cutoff signal to the freezer relay driving unit according to the off signal to block the freezer driving relay, and after a predetermined time elapses, outputs a cutoff signal to the engine starting motor relay driving unit to cut off the engine starting motor driving relay. And a sixth step of returning to the first step.

Refrigerated Vehicle, Temperature Controller, Engine Start, Refrigerator, Drive

Description

A auto engine starting system and method of temperature comtroller for refrigreator car}

1 is a flowchart illustrating a temperature control method of a conventional temperature controller for a refrigeration vehicle.

2 is a block diagram showing the configuration of an automatic engine starting system of a temperature controller for a refrigeration vehicle according to the present invention.

3 is a block diagram illustrating a configuration of an automatic engine start system of a temperature controller for a refrigerator vehicle according to another embodiment of the present invention.

4 is a flowchart illustrating a step-by-step method of the automatic engine start of the temperature controller for a refrigeration vehicle according to the present invention.

5 is a flowchart illustrating a method for automatically starting an engine of a temperature controller for a refrigeration vehicle according to another exemplary embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

1: Mode setting unit 2: Temperature sensor

3: temperature signal conversion unit 4: power and temperature display unit

5: control unit 6: engine start motor relay drive unit

7: Refrigerator relay drive unit 8: Engine start motor drive relay

9: Refrigerator driving relay 10: Battery and fuel detection sensor

11 battery and fuel signal conversion unit 12 wireless terminal

The present invention relates to a temperature controller of a refrigerating vehicle operating a freezer of a refrigeration tower using an engine of a vehicle, so that even when the driver is absent, it is possible to automatically control the starting of the vehicle and the operation of the freezer according to the temperature in the freezing tower. An automatic engine starting system of a temperature controller for a refrigeration vehicle and a method thereof are provided.

As shown in FIG. 1, the temperature controller of the conventional refrigerator vehicle is configured to operate the refrigerator only when the engine is started.

In detail, the temperature control system of a conventional refrigeration vehicle, when the driver manually drives the engine start of the vehicle (see S10) and turns on the power of the temperature controller (see S11), according to the set temperature of the refrigerator The driving and stopping are repeated (S12 to S15) to control the temperature in the freezing tower. When the driver turns off the engine start of the vehicle (see S16), the temperature controller is also turned off (OFF), thereby providing a freezer. It will also no longer run.

As such, in the conventional temperature control system, to operate the refrigerator, it is necessary to keep the engine's engine and the temperature controller on at all times. Therefore, when the vehicle is stopped (when the vehicle is unloaded or unloaded) or when parked for a long time, In order to prevent the deterioration of the vehicle engine starting at all times, the fuel consumption of the vehicle is increased, there is a problem that causes environmental pollution due to pollution.

For this reason, when driving at night due to long-distance travel, the driver does not sleep excessively or takes a nap in the car with the engine on. In the case of stopping the operation of the refrigeration vehicle, there was a hassle to move the goods mounted in the refrigeration vehicle to a separate refrigeration unit.

Due to the above problems, at one time by installing a separate external power supply (A / C MOTOR PACK CONTROL) in the refrigeration vehicle system to operate the refrigerator by receiving power from the external power supply without using a vehicle engine Although introduced, this requires a specific place for installing the external power supply device, there was a problem that the installation cost is very expensive accordingly.

The present invention is to solve the above problems, in the refrigeration vehicle operating the refrigerator using the engine of the vehicle, in the absence of the driver to automatically control the engine start of the vehicle and the operation of the refrigerator according to the temperature in the freezer. It is an object of the present invention to provide an automatic engine starting system and a method of a temperature controller for a refrigeration vehicle that can keep the temperature in the refrigeration tower constant even in the absence of the driver, thereby minimizing fuel consumption of the vehicle.

The present invention provides a refrigeration vehicle that operates a freezer of a refrigeration tower by using an engine of a vehicle, so that the engine start of the vehicle and the operation of the freezer can be automatically controlled according to the temperature of the freezer in the absence of the driver. In addition, the present invention relates to an automatic engine starting system and a method of a temperature controller for a refrigeration vehicle to maintain a constant temperature in the refrigeration tower at all times, thereby minimizing fuel consumption of the vehicle.

To this end, the automatic engine starting system of the temperature controller for a refrigeration vehicle according to the present invention includes a mode setting unit for selecting a temperature setting and an automatic / manual mode in a refrigeration tower; A temperature sensor attached to the freezing tower and configured to detect a temperature in the freezing tower as an electrical signal in real time when the automatic mode is selected in the mode setting unit; A temperature signal converter which automatically generates an on / off signal to a temperature controller when the output signal from the temperature sensor is an operation / stop condition of the refrigerator; A power source and a temperature display unit which turn on / off a power lamp and a temperature display lamp of a temperature controller when an on / off signal is generated in the temperature signal converter; A control unit which sequentially receives the output signal of the temperature signal converter and generates a driving / blocking signal for driving an engine starting motor and a refrigerator; And an engine starting motor relay driver and a refrigerator relay driver for driving the engine starting motor driving relay and the refrigerator driving relay respectively by receiving the driving / blocking signal from the controller.

In addition, the automatic engine start method of the temperature controller for a refrigeration vehicle according to the present invention, when the automatic mode of the temperature controller is selected, the power lamp of the temperature controller is turned off and at the same time an electric signal of the temperature in the freezer tower from the temperature sensor installed in the freezer tower in real time. Receiving the first step; A second step of generating an on signal to the controller by the temperature signal converter when the temperature applied from the temperature sensor is a freezer driving condition; A third step of turning on a power lamp and a temperature display lamp of a temperature controller according to the on signal; When the power lamp of the temperature controller is turned on, the control unit outputs a driving signal to the engine starting motor relay driving unit to drive the engine starting motor driving relay. Driving a fourth step; A fifth step of generating, by the temperature signal converting unit, an off signal to the controller when the temperature applied from the temperature sensor is a stop condition of the refrigerator while the engine and the refrigerator are driven according to the above; The control unit outputs a cutoff signal to the freezer relay driving unit according to the off signal to block the freezer driving relay, and after a predetermined time elapses, outputs a cutoff signal to the engine starting motor relay driving unit to cut off the engine starting motor driving relay. And a sixth step of returning to the first step.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the automatic engine starting system of the temperature controller for a refrigerator vehicle according to an embodiment of the present invention.

Figure 2 shows a block diagram showing the configuration of the automatic engine starting system of the temperature controller for a refrigerated vehicle according to the present invention, as shown in the figure the automatic engine starting system of the temperature controller for a cold vehicle according to the present invention mode setting And a temperature sensor (2), a temperature signal converter (3), a power supply and temperature display (4), a controller (5), an engine starting motor relay driver (6), and a refrigerator relay driver (7). .

The mode setting unit 1 is displayed on the front of the temperature controller, and is configured to set the temperature in the freezing tower or select an automatic or manual mode.

The temperature sensor 2 is attached to the freezing tower, and detects the temperature in the freezing tower as an electrical signal in real time when the automatic mode is selected in the mode setting unit 1 to transmit to the temperature signal converting section 3. do.

설정온도 + 2℃)일 경우 자동으로 온도제어기에 온(ON) 신호를 발생시키고, 상기 온도센서(2)로부터의 인가된 출력신호가 냉동기의 정지 조건(바람직한 실시예로는, 탑내온도

설정온도)일 경우 자동으로 온도제어기에 오프(OFF) 신호를 발생시킨다.The temperature signal converter 3 converts the electrical signal transmitted from the temperature sensor 2 into a digital signal so that the controller 5 can recognize it, and is applied from the temperature sensor 2. The output signal is the driving condition of the refrigerator (preferably in the tower temperature

When the set temperature + 2 ℃) automatically generates an ON signal to the temperature controller, the output signal applied from the temperature sensor 2 is a stop condition of the refrigerator (preferably in the embodiment, the tower temperature

In case of set temperature), it automatically generates OFF signal to temperature controller.

The power supply and temperature display unit 4 is displayed on the front side of the temperature controller. When the ON signal is generated in the temperature signal conversion unit 3, the power lamp and the temperature display lamp of the temperature controller are turned on. When the OFF signal is generated in the signal converter 3, the power lamp and the temperature display lamp of the temperature controller are turned off.

The controller 5 controls all operations of the mode setting unit 1, the temperature signal converting unit 3, the power supply and temperature display unit 4, the engine start motor relay driver 6, and the refrigerator relay driver 7. Particularly, when an ON signal is generated from the temperature signal converter 3, a driving signal for driving the engine starting motor and the refrigerator is sequentially generated, and the signal is turned off from the temperature signal converter 3. ) Generates a blocking signal to stop the engine starting motor and the refrigerator in order.

The engine starting motor relay driving unit 6 and the refrigerator relay driving unit 7 receive driving / blocking signals from the control unit 5 to respectively output the engine starting motor driving relay 8 and the refrigerator driving relay 9. Will be driven.

FIG. 3 is a block diagram showing the construction of another embodiment according to the present invention, in which the battery and fuel of the vehicle are sufficient before starting the engine of the vehicle when the ON signal from the temperature signal converter 3 is generated. It further includes a battery and fuel detection sensor 10 and the battery and fuel signal conversion unit 11 to check first.

That is, the battery and fuel detection sensor 10 electrically signals the battery and fuel remaining amounts of the vehicle according to the detection signal from the control unit 5 when the ON signal is generated by the temperature signal conversion unit 3. Will be detected.

설정 잔존량)에는 상기 제어부(5)에 온도제어기의 진행 신호를 발생 시키게 되고, 온도제어기의 종료 조건일 경우(바람직한 실시예로는, 배터리 및 연료 잔존량

설정 잔존량) 상기 제어부(5)에 온도제어기의 종료 신호를 발생시키게 된다.In addition, the battery and fuel signal conversion unit 11 is for converting the electrical signal transmitted from the battery and fuel detection sensor 10 into a digital signal so that the controller 5 can recognize, the battery And when the output signal applied from the fuel detection sensor 10 is a progress condition of the temperature controller (in a preferred embodiment, the battery and fuel remaining amount).

The set remaining amount causes the control unit 5 to generate a progress signal of the temperature controller, and in the case of the termination condition of the temperature controller (in a preferred embodiment, the battery and fuel remaining amount).

Set remaining amount) generates a termination signal of the temperature controller to the control unit 5.

Accordingly, the temperature controller is automatically shut down after switching from the automatic mode to the manual mode according to the termination signal from the control unit 5, thereby preventing the cumbersome work that occurs when the battery and fuel are completely exhausted. It becomes possible.

Meanwhile, in the above embodiment, the wireless terminal 12 for automatically transmitting the end signal of the temperature controller in the form of a BEEP sound, an SMS text message, or a voice message so that the driver can recognize the problem in advance and quickly cope before the end of the temperature controller. It is preferable to further include.

4 is a flowchart showing step by step an automatic engine start method of a temperature controller for a refrigerator vehicle according to the present invention, which will be described in detail below.

If the automatic mode of the temperature controller is selected while the engine is turned off (see S100), the power lamp of the temperature controller turns off after a predetermined time (preferably about 3 seconds) and the temperature sensor (2) In real time, the temperature in the freezer is transmitted as an electrical signal (see S110).

설정온도 + 2℃)일 경우 온도신호 변환부(3)에서 제어부(5)에 온 (ON)신호를 발생시키게 된다.(S120 참조)The temperature applied from the temperature sensor 2 is a refrigeration driving condition (preferably in the tower temperature

In the case of the set temperature + 2 ℃), the temperature signal conversion unit 3 generates an ON signal to the control unit 5 (see S120).

When the ON signal is generated in the controller 5, the power lamp and the temperature display lamp of the temperature controller are turned on (see S130).

When the power lamp of the temperature controller is turned on, after a predetermined time has elapsed (approximately 5 seconds in the preferred embodiment), the control unit 5 outputs a driving signal to the engine starting motor relay driving unit 6 to output an engine starting motor driving relay ( 8) (see S140), and afterwards (after about 3 seconds in the preferred embodiment), a drive signal is output to the refrigerator relay driver 7 to drive the refrigerator driving relay 9 (see S150).

설정온도)일 경우 상기 온도신호 변환부(3)에서 제어부(5)에 오프(OFF)신호를 발생시킨다.(S160 참조)As the engine and the refrigerator are driven by the above, the temperature in the freezing tower applied from the temperature sensor 2 is changed to the freezer stop condition (preferably in the tower temperature).

Set temperature), the temperature signal converter 3 generates an OFF signal to the controller 5 (see S160).

When the OFF signal is generated, after a predetermined time has elapsed (approximately 5 seconds in the preferred embodiment), the control unit 5 outputs a cutoff signal to the freezer relay driver 6 to cut off the freezer driving relay 8. (Refer to S170) and after that (about 3 seconds in the preferred embodiment), the engine start motor relay relay 7 is outputted to cut off the engine start motor drive relay 9 (see S180).

When the refrigerator and the engine start stop by the above, it returns to the initial state and repeats a series of control processes.

On the other hand, since it is already known about the driving technology of the refrigerator and the operation method of the refrigeration cycle according to the engine start of the vehicle, a detailed description thereof will be omitted.

FIG. 5 is a flowchart illustrating a method of automatically starting the engine of the temperature controller according to the embodiment shown in FIG. 3, wherein the battery of the vehicle is automatically turned on before the engine is started when the ON signal of the temperature controller is generated. And checking in advance whether the fuel is sufficient.

That is, in the automatic engine start method of the temperature controller shown in FIG. 5, when the ON signal is generated in the temperature signal converter 3, the battery and fuel signal converters are output according to the detection signal from the controller 5. 11 receives an electric signal from the battery and fuel remaining amount of the vehicle from the battery and fuel detection sensor 10 of the vehicle (step S190).

설정 잔존량)에는 상기에서 언급한 S130 단계를 진행시키고, 온도제어기의 종료 조건일 경우(바람직한 실시예로는, 배터리 및 연료 잔존량

설정 잔존량)에는 상기 제어부(5)로 온도제어기의 종료 신호를 발생시킨다. 이에 따라, 온도제어기는 자동모드를 수동모드로 전환한 후 자동 종료된다.(S200 단계) As a result, in the case of the progress condition of the temperature controller (in a preferred embodiment, the battery and fuel remaining amount)

Set remaining amount) proceeds to the above-described step S130, and when the temperature controller is terminated condition (in a preferred embodiment, the battery and fuel remaining amount)

Set residual amount), the controller 5 generates an end signal of the temperature controller. Accordingly, the temperature controller is automatically terminated after switching from the automatic mode to the manual mode (step S200).

In this case, preferably, before the step S200, the driver may automatically transmit the end signal of the temperature controller to the driver in the form of a BEEP sound, SMS text message or voice message through the wireless terminal 12 so that the driver can recognize and respond quickly. (Step S210)

On the other hand, the present invention described above has been described with respect to specific embodiments is not limited by the above-described embodiment and the accompanying drawings, it is to be understood that various modifications are possible within the scope without departing from the spirit of the present invention. It will be apparent to those of ordinary skill in the art.

According to the present invention, it is possible to automatically operate the engine start of the vehicle and the freezer according to the temperature in the freezer even in the absence of the driver, it is possible to save fuel and reduce the environmental pollution due to idling.

In addition, the cost is very low because there is no need to install a separate external power supply for driving the refrigerator in the state that the engine start of the vehicle is off, there is no obstacle to the space for installing the external power supply As a result, space utilization is increased.

In addition, the driver of a refrigerated vehicle does not have to operate excessively to induce the driver's safe operation, and the temperature inside the freezer tower can be kept constant regardless of the absence of the driver so that temperature-sensitive articles such as food or medicines can be safely It has a carrying effect.

Claims (6)

In an automatic engine start system of a temperature controller for a refrigeration vehicle, A mode setting unit for selecting a temperature setting in the freezing tower and an automatic / manual mode; A temperature sensor attached to the freezing tower and configured to detect a temperature in the freezing tower as an electrical signal in real time when the automatic mode is selected in the mode setting unit; A temperature signal converter which automatically generates an on / off signal to a temperature controller when the output signal from the temperature sensor is an operation / stop condition of the refrigerator; A power source and a temperature display unit which turn on / off a power lamp and a temperature display lamp of a temperature controller when an on / off signal is generated in the temperature signal converter; A control unit which sequentially receives the output signal of the temperature signal converter and generates a driving / blocking signal for driving an engine starting motor and a refrigerator; And Automatic engine starting of the temperature controller for a refrigeration vehicle, characterized in that it comprises an engine starting motor relay driving unit and a refrigeration relay driving unit for driving the engine starting motor driving relay and the refrigerator driving relay, respectively, by receiving the driving / blocking signal from the control unit. system. The method of claim 1, A battery and fuel detection sensor configured to detect a battery and fuel remaining amount of the vehicle as an electrical signal according to a detection signal from the controller when an on signal is generated in the temperature signal converter; And A battery which generates a progress signal of the temperature controller to the controller when the output signal from the battery and the fuel detection sensor is a progress condition of the temperature controller, and generates a termination signal of the temperature controller to the controller when the temperature controller is terminated; An automatic engine starting system of a temperature controller for a refrigeration vehicle, further comprising a fuel signal conversion unit. The method of claim 2, When the end signal of the temperature controller is generated from the battery and fuel signal conversion unit automatic engine of the temperature controller for a refrigeration vehicle further comprising a wireless terminal for automatically transmitting it to the driver in the form of BEEP sound, SMS text message or voice message. Starting system. In the automatic engine start method of the temperature controller for a refrigeration vehicle, When the automatic mode of the temperature controller is selected, the first step of receiving the electrical signal of the temperature in the freezing tower in real time from the temperature sensor installed in the freezing tower at the same time the power lamp of the temperature controller is turned off; A second step of generating an on signal to the controller by the temperature signal converter when the temperature applied from the temperature sensor is a freezer driving condition; A third step of turning on a power lamp and a temperature display lamp of a temperature controller according to the on signal; When the power lamp of the temperature controller is turned on, the control unit outputs a driving signal to the engine starting motor relay driving unit to drive the engine starting motor driving relay. Driving a fourth step; A fifth step of generating, by the temperature signal converting unit, an off signal to the controller when the temperature applied from the temperature sensor is a stop condition of the refrigerator while the engine and the refrigerator are driven according to the above; The control unit outputs a cutoff signal to the freezer relay driving unit according to the off signal to block the freezer driving relay, and after a predetermined time elapses, outputs a cutoff signal to the engine starting motor relay driving unit to cut off the engine starting motor driving relay. And a sixth step of returning to the first step of the automatic engine starting method of the temperature controller for a refrigerator vehicle. The method of claim 4, wherein When the on signal is generated in the second step, receiving a battery and fuel residual amount of the vehicle as an electrical signal from the battery and fuel detection sensor of the vehicle to the battery and fuel signal conversion unit according to the detection signal from the controller; If the output signal in the step is the progress condition of the temperature controller, proceed to the third step; if the end condition of the temperature controller, the control unit generates a termination signal of the temperature controller, and automatically releases the automatic mode of the temperature controller. Automatic engine start method of the temperature controller for a refrigeration vehicle, characterized in that further comprising the step of terminating. The method of claim 5, The automatic engine starting method of the temperature controller for a refrigeration vehicle, characterized in that further comprising the step of automatically transmitting to the driver in the form of a BEEP sound, SMS text message or voice message through the wireless terminal at the end of the temperature controller.

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