CN202170831U - Automatic idling stop system for engine - Google Patents

Abstract

The utility model relates to an engine idling automatic flameout system, comprising: a vehicle speed sensor, an engine speed sensor, a timer, an idle flameout switcher, an idle flameout control switch and an idle flameout control unit electrically connected to the above-mentioned components. When the engine is in the starting state, the idle stop switch is in the idle automatic stop mode, and the vehicle speed measured by the vehicle speed sensor is zero and the timer measures that the engine speed is less than the predetermined speed for more than a predetermined time, the idle speed The flameout control unit outputs a signal to the idle flameout control switch, and then controls the power supply control switch to control the engine flameout. In this way, the existing sensing elements of the locomotive can be used to automatically turn off the engine at idle speed, which not only saves costs, but also avoids complicated and inconvenient operations.

Description

Engine idling automatic flameout system

technical field

The utility model relates to an engine automatic flameout system, in particular to a locomotive engine idle automatic flameout system.

Background technique

Exhaust gas emitted by automobiles and motorcycles is one of the main factors causing air pollution and the greenhouse effect, and the concentration of exhaust gas emitted by locomotives during idling (such as stopping at a red light at a crossroad) is several times that of normal driving. Therefore, to effectively prevent The locomotive emits exhaust gas at idle speed, the best way is to turn off the engine.

In addition, due to the increasingly stringent requirements of environmental protection laws and regulations, relevant environmental protection agencies in various countries gradually require automobiles and locomotives to stop when they are waiting for traffic lights, traffic jams, and roadside pauses, that is, when idling for more than a certain period of time (such as 5 minutes). The engine stalled. Therefore, how to control the automatic flameout of the engine at idle speed to suppress the gas emissions of automobiles and locomotives and reduce the consumption of gasoline fuel is a problem that every vehicle manufacturer is eager to solve.

Generally, the way to start and stop a motorcycle is to use a key to turn the motorcycle lock. Please refer to Figure 1 for a circuit diagram of a conventional engine starting and stopping system. Generally speaking, when starting the engine 70, the rider needs to turn the motorcycle lock with the right hand key First turn on the power switch 74 to connect to the battery 73, and then turn on the brake switch 75 with the left hand. At this time, the brake light 76 will be on. That is, the brake circuit must be turned on before the engine 70 can be started to avoid bursting, and then press it with the right hand The start switch 77, through the start control switch 79, turns on the starter motor 78 and then the engine 70 can be started through the power control switch 71 and the igniter 72, and the relevant information of the engine 70 running can be displayed on the indicator light 80. In addition, when the engine 70 is about to turn off during idling, the rider needs to reverse the key to cut off the power supply. Therefore, for the motorcycle rider, both hands must move back and forth between the motorcycle handle and the lock when the engine is turned off and started, which is very cumbersome and inconvenient to operate, which is not ideal.

Some locomotives that have only been on the market in recent years use the electronic control unit (Electronic Control Unit: ECU) of the jet engine to detect whether the handle of the locomotive is not being held or not according to the engine speed, vehicle speed, and the grip sensor. Determine if the engine should be turned off. Referring to FIG. 2 , another conventional engine idling stop system architecture diagram is shown. The system architecture mainly includes: a handle sensor 91 , a vehicle speed sensor 92 , a timer 93 and a control unit 94 . The handle sensor 91 is used to detect whether the handle of the motorcycle is held, the vehicle speed sensor 92 is used to measure the speed of the motorcycle, the timer 93 is used to measure the duration of the handle not being held, and the control unit 94 is electrically connected to In the grip sensor 91 , the vehicle speed sensor 92 , and the timer 93 .

When the engine 95 of the locomotive is in the starting state, the handle sensor 91 detects that the handle is not held, the timer 93 measures the duration of the handle not being held and reaches a predetermined value, and the vehicle speed sensor 92 measures that the handle is not held. When the vehicle speed is zero, that is, the locomotive is in idle speed, the control unit 94 promptly outputs a signal to control the engine 95 of the locomotive to stall. Although this method can judge and help the rider to complete the automatic flameout action, it needs to install multiple sensors to measure a variety of different and necessary interpretation information, which increases the number of components and increases the cost of the overall motorcycle. Not very ideal, there is still room for improvement.

Because of this, the inventor, based on the spirit of active invention, desperately thought of a kind of engine idling automatic flameout system that can solve the above problems, and finally completed the utility model after several research experiments.

Utility model content

The main purpose of this utility model is to provide a kind of engine idling automatic flameout system, so that the existing sensing elements of the locomotive and the engine can be used without adding a handle sensor or other additional sensing elements to automatically idle the engine, not only The cost can be saved, and the complicated and inconvenient operation can also be avoided.

In order to achieve the above object, the engine idling automatic flameout system of the present utility model is assembled on a locomotive with an engine, including: a vehicle speed sensor, an engine speed sensor, a timer, an idling flameout switch , an idle flameout control switch and an idle flameout control unit. The vehicle speed sensor is used to measure the speed of the locomotive, the engine speed sensor is used to measure the speed of the locomotive engine, the timer is used to measure the duration when the engine speed measured by the engine speed sensor is less than a predetermined speed, and the idle speed switch is used. The operating mode of the control locomotive is automatically turned off at idling speed or not at idle speed, and the idling turned off control unit is electrically connected to the vehicle speed sensor, the engine speed sensor, the timer, the idle turned off switcher and the idle turned off control switch.

Wherein, when the engine is in the starting state and the idle stop switch is in the idle automatic stop mode, and the vehicle speed measured by the vehicle speed sensor is zero and the timer measures the engine speed less than the predetermined speed for more than a predetermined time , the idling flameout control unit then judges that the locomotive is idling at this moment, and can output a signal to the idling flameout control switch, and then controls the power supply control switch electrically connected with the engine to control the engine flameout.

The predetermined time of above-mentioned locomotive idle speed can be set to 3 minutes, 4 minutes, 5 minutes or other time, it can be set according to the local environmental protection regulations, and the predetermined time can be stored in the internal memory or other equivalent storage in the idle speed stop control unit in the media.

The predetermined rotational speed of the above-mentioned engine can be set to 2000 rev/min (rpm), 1800 rev/min, 1600 rev/min or other revolutions, which can be set according to the performance of the engine, and the predetermined rotational speed can be stored in the idle flameout memory in the control unit or other equivalent storage media.

The above-mentioned idling flameout switcher can be a push switch or other equivalent components, so that the locomotive rider can easily control and select the operation mode of the locomotive as idling automatic flameout or non-idling automatic flameout, that is, the rider can freely choose whether to The engine is automatically turned off at idling speed, and it can be changed only by pressing the switch by hand.

In addition, when the engine is in the starting state and the idle stop switch is in the operation mode of non-idling automatic stop, even if the vehicle speed sensor measures the vehicle speed as zero and the timer measures the engine speed as being less than the predetermined speed for more than a predetermined time , the idling flameout control unit does not output any signal to control the engine flameout, that is, at this time, the rider sets the running mode of the locomotive as automatic flameout without idling.

The above-mentioned idle stop control switch can be a normally closed relay (Relay) or other equivalent components.

The operation mode of the above-mentioned idling flameout switcher can be displayed on the instrument indicator light of the locomotive, that is, whether the operating mode of the locomotive is the state of automatic flameout at idling speed or automatic flameout at non-idling speed, all can be displayed on the indicator light of the instrument to allow riding The reader can quickly and clearly understand it visually.

The above-mentioned locomotive may include a starter motor, the starter motor is electrically connected to a start control switch, and the idle stop control unit is electrically connected to the start control switch, so that when the locomotive is in idle stop and needs to be started again, it is only necessary to press the start switch. If the known technology needs to pull the start brake switch again, the brake circuit has been conducted by the idle stop control unit and the start control switch of the starter motor.

The utility model utilizes the existing sensing elements of the locomotive to automatically stop the engine at idle speed, which not only saves costs, but also avoids complicated and inconvenient operations.

Description of drawings

FIG. 1 is a schematic circuit diagram of a conventional engine start and stop system.

FIG. 2 is a system architecture diagram of another conventional engine idling flameout.

Fig. 3 is a system architecture diagram of a preferred embodiment of the present invention.

Fig. 4 is a schematic circuit diagram of a preferred embodiment of the present invention.

Fig. 5 is a control flow chart of a preferred embodiment of the present invention.

Description of main component symbols

10 Engine 11 Power control switch

12 igniter 13 battery

14 Power switch 15 Brake switch

16 Brake light 17 Start switch

18 Starter motor 19 Starter control switch

21 Vehicle speed sensor 22 Engine speed sensor

23 Timer 24 idle speed exchanges 25 instrument indicator 26 idle flameout control switch 30 idle flameout control unit 70 engine control switch 72 igniter 73 battery switch 74 brake switch 76 brake lamp 77 start and switch 78 start motor 79 startup Control switch 80 Instrument indicator light 91 Grip sensor 92 Vehicle speed sensor 93 Timer 94 Control unit 95 Engine

Detailed ways

Please refer to Fig. 3 and Fig. 4, which are respectively a system architecture diagram and a schematic circuit diagram of a preferred embodiment of the present utility model, the engine idling automatic flameout system of the present embodiment is assembled on a locomotive with an engine 10, Including: a vehicle speed sensor 21, an engine speed sensor 22, a timer 23, an idle flameout switcher 24, an idle flameout control switch 26, an instrument indicator light 25, an engine 10 and an idle flameout control switch 26 is electrically connected to the power control switch 11 and an idle stop control unit 30 .

Wherein, the speed sensor 21 is used to measure the speed of the locomotive, the engine speed sensor 22 is used to measure the speed of the engine 10, and the timer 23 is used to measure that the speed of the engine 10 measured by the engine speed sensor 22 is less than one During the duration of the predetermined speed, the idling flameout switcher 24 can provide the rider to select and control the running mode of the locomotive to be the idling automatic flameout or the non-idling automatic flameout state, and the idle flameout control unit 30 is then electrically connected to the vehicle speed sensor 21, the engine A rotational speed sensor 22 , a timer 23 , an idle stop switch 24 and an idle stop control switch 26 . When the engine 10 is in the starting state and the idle stop switch 24 is in the running mode of the idle automatic stop, the vehicle speed sensor 21 measures that the vehicle speed is zero and the timer 23 measures that the rotational speed of the engine 10 is less than the predetermined rotational speed for more than a predetermined time. The idle stop control unit 30 then outputs a signal to the idle stop control switch 26, and then controls the power control switch 11 to cut off the power supply, and controls the engine 10 to stop.

In addition, when the engine 10 is in the starting state and the idle stop switch 24 is in the operation mode of non-idling automatic stop, even if the vehicle speed sensor 21 measures the vehicle speed as zero and the timer 23 measures the speed of the engine 10 as being less than the predetermined speed for more than During a predetermined time, the idling flameout control unit 30 does not output any signal for controlling the engine 10 flameout, that is, at this time, the rider sets the running mode of the locomotive as automatic flameout without idling.

In this embodiment, the predetermined time is set to 5 minutes, the predetermined rotational speed of the engine 10 is set to 2000 revolutions per minute (rpm), and the idle flameout switch 24 is a push switch, which can be convenient for the motorcycle rider to control and select the motorcycle The operating mode is automatic flameout at idling speed or automatic flameout without idling speed. And the operation mode of the idle stop switch 24 is displayed on the instrument indicator light 25 of the locomotive, which allows the rider to visually quickly and clearly know the operation mode, so as to decide whether to switch and change the operation mode.

As shown in Figure 4, the steps for starting the engine 10 are as follows: the rider first activates the power switch 14 to connect the battery 13, and then pulls the brake switch 15 by hand. Start the engine 10 to avoid bursting, then press the start switch 17, turn on the starter motor 18 through the start control switch 19, and then the engine 10 can be started through the power control switch 11 and the igniter 12.

In addition, when the locomotive is idling, that is, the engine 10 is in the starting state and the idle stop switch 24 is in the idling automatic stop mode, the vehicle speed sensor 21 measures the vehicle speed as zero and the timer 23 detects that the rotational speed of the engine 10 is less than When the duration of 2000 rev/min exceeded 5 minutes, the idle stop control unit 30 then output a signal to the idle stop control switch 26, and after the idle stop control switch 26 received the signal output by the idle stop control unit 30, it could control and The power control switch 11 that engine 10 is electrically connected, and then control engine 10 flameout, and needs the rider to turn key with hand and cut off power supply as aforementioned conventional technology. In this embodiment, the idle stop control switch 26 is a normally closed relay.

In addition, as shown in Figure 4, in this embodiment, because the idle stop control unit 30 is electrically connected with the start control switch 19 of the starter motor 18, when the locomotive is in idle stop and needs to be started again, it is only necessary to press the start switch 17, it is not necessary to manually pull the brake switch 15 as the known technology, because the brake circuit has been conducted by the idle stop control unit 30 and the start control switch 19.

In this way, the present embodiment can utilize the existing sensing elements of the locomotive and the engine, without needing to add such as a grip sensor or other additional sensing elements as in the conventional technology, to automatically turn off the engine at idle speed, which not only saves costs, but also can Avoid tedious and inconvenient operation.

Please refer to FIG. 5 which is a control flow diagram of a preferred embodiment of the present invention, and please refer to FIG. 3 together. The engine idling automatic flameout control method of the present embodiment includes the following steps: first, when the engine 10 is in the starting state, it is judged whether the idle speed flameout switcher 24 is in the operation mode of the idle speed automatic flameout (S901); Whether the vehicle speed of the measured locomotive is zero (S902); Then, determine whether the rotational speed of the engine 10 measured by the engine rotational speed sensor 22 is less than a predetermined rotational speed and continues to exceed a predetermined time (S903); Be located in the operation mode of idling automatic flameout, and when the vehicle speed measured by the vehicle speed sensor 21 is zero and the timer 23 measures that the rotating speed of the engine 10 is less than the predetermined rotating speed for more than a predetermined time, the idling flameout control unit 30 then outputs a signal to The idle stop control switch 26 further controls the power control switch 11 to control the engine 10 to stop (S904). If the idle stop switch 24 is in the operation mode of non-idling automatic stop, the idle stop control unit 30 does not output any signal for controlling the stop of the engine 10 .

Claims (5)

1. An engine idling automatic flameout system is characterized in that it is assembled on a locomotive with an engine, comprising: a vehicle speed sensor for measuring the vehicle speed of the locomotive; an engine speed sensor for measuring the speed of the engine; a timer for measuring the duration during which the speed of the engine is less than a predetermined speed; An idling flameout switcher, used to select and control the operation mode of the locomotive as idling automatic flameout or non-idling automatic flameout; an idle stop control switch for selectively controlling a power control switch electrically connected to the engine; and An idle stop control unit, electrically connected to the vehicle speed sensor, the engine speed sensor, the timer, the idle stop control switch and the idle stop switch; Wherein, when the engine is in the starting state and the idle stop switch is in the idle automatic stop operation mode, the vehicle speed sensor measures that the vehicle speed is zero and the timer measures that the rotational speed of the engine is less than the predetermined rotational speed for more than During a predetermined time, the idle stop control unit outputs a signal to the idle stop control switch, and then controls the power control switch to control the engine stop. 2. The engine idling automatic flameout system according to claim 1, characterized in that the idling flameout switch is a push switch. 3. The engine idling automatic flameout system according to claim 1, wherein the idling flameout control switch is a relay. 4. The engine idling automatic flameout system as claimed in claim 1, wherein the operating mode of the idle flameout switch is displayed on an indicator lamp of the locomotive. 5. The engine idling automatic flameout system as claimed in claim 1, wherein the locomotive comprises a starter motor electrically connected to a start control switch, and the idling flameout control unit is also electrically connected to the start control switch. the

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