Remote starting and flameout control system for agricultural machinery

Abstract

The utility model belongs to the technical field of agricultural machinery, and particularly relates to an agricultural machinery remote starting and flameout control system which comprises a key switch, a starting relay, a flameout relay, a whole vehicle controller, a starter, a generator and a storage battery. The starter is mainly used for converting electric energy of the storage battery into mechanical energy and driving a flywheel of the engine to rotate through a transmission mechanism so as to start the engine; the storage battery stores electric energy of the engine. The other end of the normally open contact of the starting relay is connected with the 50 end of the starter; the positive electrode of a coil of the flameout relay is connected with a flameout signal line of a vehicle control unit, and a normally-closed contact of the flameout relay is connected to a flameout control line of an engine ECU in series. According to the utility model, the remote starting and flameout of the engine can be realized, and the problem that the starting and flameout of the key switch fail when the vehicle control unit breaks down or is dismounted is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and in particular relates to a remote start-stop control system for agricultural machinery. Background Art

[0002] Agriculture is the foundation of our country and has always been valued by the country and the government. Vigorously promoting agricultural mechanization and intelligence is the inevitable path to agricultural modernization. With the development of artificial intelligence technology, under the support of today's Internet, big data and other technologies, unmanned driving technology has made rapid progress; under the guidance of national policies, the agricultural machinery industry has planned, adjusted and integrated plots of land, and piloted unmanned agricultural machinery in many major agricultural provinces for all-round operations such as plowing, planting, management and harvesting;

[0003] The promotion of unmanned agricultural machinery will help promote the full mechanization and intelligence of agricultural production, ensure increased grain production, increased agricultural efficiency, increased farmers' income, and improve land utilization.

[0004] At present, agricultural machinery directly controls the ECU flameout line and start line through the vehicle controller, realizing key start, flameout and remote start and flameout. This control method requires the vehicle controller to always output power to the flameout line, otherwise it cannot be started. When the vehicle controller is abnormal or removed, it will not only affect the remote start and flameout function of the agricultural machinery, but also affect the key start and flameout of the agricultural machinery. The agricultural machinery cannot work normally, and troubleshooting the problem will delay the user's harvest. Utility Model Content

[0005] In order to effectively solve the problem of key switch starting and shutting down failure when the vehicle controller fails or is removed in the above-mentioned prior art.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A remote start-stop control system for agricultural machinery, comprising:

[0008] Key switch, used to manually control the start and stop of agricultural machinery;

[0009] Start relay, used for key switch or remote start signal to control the starter operation;

[0010] The flameout relay is used to disconnect the flameout solenoid valve when the flameout is remotely shut down;

[0011] The vehicle controller is used to receive remote start and shutdown commands and control the output of corresponding signals;

[0012] The starter mainly converts the electrical energy of the battery into mechanical energy, drives the engine's flywheel to rotate through the transmission mechanism, and thus starts the engine;

[0013] The function of a generator is to convert mechanical energy into electrical energy;

[0014] The battery stores the electrical energy of the engine;

[0015] The positive electrode of the battery is respectively connected to the key switch B position, the generator B+, the starter 30 terminal, and one end of the normally open contact of the starter relay;

[0016] The other end of the normally open contact of the starter relay is connected to the starter 50 end;

[0017] The positive pole of the flameout relay coil is connected to the flameout signal line of the vehicle controller, and the normally closed contact of the flameout relay is connected in series to the flameout control line of the engine ECU;

[0018] The key switch start gear and the vehicle controller start signal line are connected to the positive pole of the start relay coil.

[0019] Furthermore, the key switch start position is connected in parallel with the start signal output by the vehicle controller.

[0020] Furthermore, the positive pole of the flameout relay coil is connected in series with the flameout signal output by the vehicle controller.

[0021] Furthermore, the normally closed contact of the flameout relay is connected in series to the flameout control line of the engine ECU.

[0022] Furthermore, the vehicle controller is powered by the key switch in the ON position.

[0023] The technical effects achieved by the utility model are:

[0024] The utility model discloses a remote start and shut-off control system for agricultural machinery to solve the problem that agricultural machinery cannot be started or shut down locally when the whole vehicle controller is abnormally removed in the market, thereby reducing the failure of harvesters and saving users' time. In addition, by adding a shut-off relay, adjustments can be made to the original design without affecting the working application of other components and without any changes from the original operation. It has the characteristics of low cost and few changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a wiring schematic diagram of an embodiment of the utility model;

[0026] Figure 2 This is the existing wiring schematic. DETAILED DESCRIPTION

[0027] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0028] like Figure 1-Figure 2 As shown, a remote start-stop control system for agricultural machinery includes:

[0029] Key switch, used to manually control the start and stop of agricultural machinery;

[0030] Start relay, used for key switch or remote start signal to control the starter operation;

[0031] The flameout relay is used to disconnect the flameout solenoid valve when the flameout is remotely shut down;

[0032] The vehicle controller is used to receive remote start and shutdown commands and control the output of corresponding signals;

[0033] The starter mainly converts the electrical energy of the battery into mechanical energy, drives the engine's flywheel to rotate through the transmission mechanism, and thus starts the engine;

[0034] The function of a generator is to convert mechanical energy into electrical energy;

[0035] The battery stores the electrical energy of the engine.

[0036] The key switch position B is connected in series with the battery and the main power switch, the other end of the main power switch is connected to the ground wire, one end of the generator, one end of the starter and the negative pole of the VCU communication unit respectively, the key switch position B is also connected to the normally open contact of the starter relay, the other end of the normally open contact of the starter relay is connected to the starter, the key switch position C is connected to one end of the starter relay coil, and the other end of the starter relay coil is grounded;

[0037] In order to solve the problem in the market that agricultural machinery cannot be started or shut down locally when the vehicle controller is abnormally removed, the failure of agricultural machinery is reduced and the user's time is saved.

[0038] The generator is connected in parallel with the starter and the battery respectively. The key switch C position is also connected to the VCU communication unit. The positive pole of the VCU communication unit is connected to the key switch ON position. The key switch ON position is also connected to the normally closed contact of the ignition relay. The other end of the normally closed contact of the ignition relay is connected to the ECU starter control unit. One end of the ignition relay coil is connected to the VCU communication unit, and the other end of the ignition relay coil is grounded.

[0039] Specifically, each position of the key switch is described as follows:

[0040] B: This is the off position of the key switch, which turns off the power system to avoid battery consumption. In this position, the vehicle's electrical system is off and the engine will not run;

[0041] BR: Similar to B, but in addition to turning off the power system, it also turns on the vehicle's radio or entertainment system. This allows you to continue using the stereo or other electronic devices when the vehicle is turned off;

[0042] ACC: The vehicle's power system remains off and the engine will not run, but some of the vehicle's auxiliary electronic devices are allowed to be used, such as the radio, car navigation, sunroof, etc. This gear is usually used to use certain functions of the vehicle without starting the engine;

[0043] ON: The vehicle's power system is turned on, but the engine has not been started. In this gear, all the vehicle's electronic equipment can work normally, such as lights, electric windows, air conditioning, etc.;

[0044] C: Used to start the engine. When the key is turned to the C position, the starter relay will transmit current to the engine start circuit to start the engine. At this time, the key needs to be kept in the C position for a moment to ensure that the engine starts smoothly.

[0045] The key switch C position is connected to the start signal terminal on the VCU communication unit.

[0046] One end of the flameout relay coil is connected to the flameout signal terminal on the VCU communication unit.

[0047] In some preferred embodiments, when the ignition is turned off, a small amount of current will still flow in the circuit system of the vehicle to keep some basic circuits running. If there is no ignition-off relay, this will cause the battery to be continuously discharged, increasing the load and loss of the battery. By adding a ignition-off relay, the circuit can be effectively cut off, reducing the load on the battery and extending the battery life.

[0048] Among them, some vehicles are equipped with circuit systems, so that some electrical devices can still be used when the vehicle is turned off, such as audio systems, electric windows, etc. Properly adding a shutdown relay can make the use of these functions more convenient while ensuring the safety of the system and the life of the battery.

[0049] The other end of the normally closed contact of the flameout relay is connected to the flameout signal terminal on the ECU starter control unit.

[0050] The positive and negative power supplies of the VCU communication unit adopt DC12V / DC24V. It can meet the demand of the vehicle electronic system for stable and reliable power supply and ensure the normal operation of various components of the vehicle; DC power supply DC12V / DC24V is a common voltage standard for vehicles and is suitable for a variety of electronic equipment and control units inside the vehicle, such as on-board computers, on-board audio systems, navigation systems, safety systems, etc. By ensuring that the positive and negative power supplies of the VCU adopt DC12V / DC24V, stable power communication and power supply can be achieved between various vehicle systems, ensuring the normal operation of the vehicle and the normal use of various functions.

[0051] The working principle of the utility model is:

[0052] For remote start, you first need to keep the key switch in the ON position to power on. The APP remotely sends a start command to the vehicle controller. The start signal outputs a high voltage, the start relay coil is energized, the start relay normally open contacts are closed, and the starter starts working. This design does not require the vehicle controller to output a shutdown signal during start-up.

[0053] Remote shutdown: the APP remotely sends a shutdown command to the vehicle controller, and the shutdown control signal output changes from low voltage to high voltage, the normally closed shutdown relay coil is energized, the normally closed contacts of the shutdown relay are disconnected, the shutdown signal loses power, and the agricultural machinery is shut down;

[0054] When starting locally, put the key switch in the start gear. At this time, the ON gear and the start gear are powered on. The vehicle controller does not need to output a high voltage to the flameout control signal. When the start gear is connected, the start relay coil is energized, and the start relay normally open contact is closed. After the starter starts working for 3-5 seconds, the agricultural machinery starts successfully. Put the key switch back to the ON gear and the start gear loses power.

[0055] When the engine is turned off locally, put the key switch in the OFF position, the power is lost in the ON position, the engine off signal changes from high voltage to low voltage, and the agricultural machinery turns off.

[0056] The control method of the utility model comprises the following steps:

[0057] S1, remote start, keep the key switch in the ON position to power on, the APP remotely sends a start command to the vehicle controller, the start signal outputs a high voltage, the start relay coil is energized, the start relay normally open contact is closed, and the starter starts working;

[0058] S2, remote shutdown. The APP remotely sends a shutdown command to the vehicle controller. The shutdown control signal output changes from low voltage to high voltage, the normally closed shutdown relay coil is energized, the normally closed contacts of the shutdown relay are disconnected, the shutdown signal loses power, and the agricultural machinery is shut down.

[0059] S3, local start, put the key switch in the start gear, at this time, the ON gear and the start gear are powered on, the vehicle controller does not need to output high voltage to the flameout control signal, when the start gear is connected, the start relay coil is energized, the start relay normally open contact is closed, the starter starts to work for 3-5 seconds, the agricultural machinery starts successfully, put the key switch back to the ON gear, and the start gear loses power;

[0060] S4, local flameout, put the key switch in the OFF position, the ON position loses power, the flameout signal changes from high voltage to low voltage, and the agricultural machinery is shut down.

[0061] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A remote start-stop control system for agricultural machinery, characterized in that: include: Key switch, used to manually control the start and stop of agricultural machinery; Start relay, used for key switch or remote start signal to control the starter operation; The flameout relay is used to disconnect the flameout solenoid valve when the flameout is remotely shut down; The vehicle controller is used to receive remote start and shutdown commands and control the output of corresponding signals; The starter mainly converts the electrical energy of the battery into mechanical energy, drives the engine's flywheel to rotate through the transmission mechanism, and thus starts the engine; The function of a generator is to convert mechanical energy into electrical energy; The battery stores the electrical energy from the engine; The positive electrode of the battery is respectively connected to the key switch B position, the generator B+, the starter 30 terminal, and one end of the normally open contact of the starter relay; The other end of the normally open contact of the starter relay is connected to the starter 50 end; The positive pole of the flameout relay coil is connected to the flameout signal line of the vehicle controller, and the normally closed contact of the flameout relay is connected in series to the flameout control line of the engine ECU; The key switch and the vehicle controller start signal line are connected to the positive pole of the start relay coil.

2. The agricultural machinery remote start-stop control system according to claim 1, characterized in that: The key switch is connected in parallel with the start signal output by the vehicle controller.

3. The agricultural machinery remote start-stop control system according to claim 2, characterized in that: The positive pole of the flameout relay coil is connected in series with the flameout signal output by the vehicle controller.

4. The agricultural machinery remote start-stop control system according to claim 3, characterized in that: The normally closed contact of the flameout relay is connected in series to the flameout control line of the engine ECU.

5. The agricultural machinery remote start-stop control system according to claim 4, characterized in that: The vehicle controller is powered by the key switch in the ON position.

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