WO2024105682A1 - Système et procédé de gestion de vitesse de rotoculteur - Google Patents

Système et procédé de gestion de vitesse de rotoculteur Download PDF

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Publication number
WO2024105682A1
WO2024105682A1 PCT/IN2023/050236 IN2023050236W WO2024105682A1 WO 2024105682 A1 WO2024105682 A1 WO 2024105682A1 IN 2023050236 W IN2023050236 W IN 2023050236W WO 2024105682 A1 WO2024105682 A1 WO 2024105682A1
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WO
WIPO (PCT)
Prior art keywords
rotavator
speed
controller
pto
communication module
Prior art date
Application number
PCT/IN2023/050236
Other languages
English (en)
Inventor
Singha PARTHA SARATHI
Natarajan SARAVANAN
Arumugham SIVAKUMAR
Sundaram PAVITHRA
Abbaas MOHD ALI
Original Assignee
Mahindra & Mahindra Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahindra & Mahindra Limited filed Critical Mahindra & Mahindra Limited
Publication of WO2024105682A1 publication Critical patent/WO2024105682A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
    • A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
    • A01B33/082—Transmissions; Gearings; Power distribution
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B79/00—Methods for working soil
    • A01B79/005—Precision agriculture

Definitions

  • Embodiments herein generally relate to rotavators and more particularly, to a system and a method for managing speed of the rotavator in accordance with the soil condition.
  • a rotavator is a secondary tillage implement which is mainly used for pulverization of a soil.
  • the rotavator takes power from a Power take off (PTO) shaft which rotates the rotavator.
  • PTO Power take off
  • the speed of a rotavator blade for different soil condition plays an important role in quality of the operation. It is very important to operate the rotavator at an optimal RPM to get better pulverization, less fuel consumption and better area coverage in accordance with the soil condition.
  • the ratios between the forward speed of tractor and the speed of the rotavator blade speed have to be maintained in accordance with the soil condition.
  • rotor gears are attached in a muti-speed rotavator variant in which a user can get different rotavator blade RPM according to the soil condition (e.g. hard soil condition, medium soil condition, soft soil condition or the like).
  • the soil condition e.g. hard soil condition, medium soil condition, soft soil condition or the like.
  • Multi speed rotavator have few limitations as mentioned below:
  • the rotors gears have to be changed manually which is a drudgery process.
  • the principal object of the embodiments herein is to provide a display cum controller which takes few inputs from a user, wherein the display cum controller regulates a speed of the rotavator by directing a power take off (PTO) inverter to operate a PTO motor which in turn rotates a PTO shaft at a predefined speed (optimal speed).
  • PTO power take off
  • Another object of the embodiments herein is provide the display cum controller which automatically adjusts speed of the rotavator based on an input variant and a rotor gear.
  • Another object of the embodiments herein is alert the user when the operating speed of the rotavator is different from the determined predefined speed.
  • Another object of the embodiments herein is provide the display cum controller which displays the speed of rotavator (102), a mode of a gear, total trip information, a battery status, a usage of the communication module, an oil level, an alternative energy usage information, and charging indication.
  • FIG. 1 depicts an overview of a system in which a display cum controller regulates a speed of a rotavator , according to embodiments as disclosed herein;
  • FIG. 2 depicts an example system in which the display cum controller regulates the speed of the rotavator, according to embodiments as disclosed herein;
  • FIG. 3 illustrates a hardware architecture of the display cum controller, according to embodiments as disclosed herein;
  • FIG. 4 illustrates screen information of the display cum controller, according to embodiments as disclosed herein;
  • FIG. 5 and FIG. 6 are example illustrations in which the display information is presented on a user interface of the display cum controller, according to embodiments as disclosed herein;
  • FIG. 7 depicts example closed loop system/operations in which the proposed display cum controller regulates the RPM of the rotavator, according to embodiments as disclosed herein;
  • FIG. 8 depicts a flowchart indicating steps of a method for regulating speed of the rotavator, according to embodiments as disclosed herein.
  • Embodiments herein disclose a system for managing a speed of a rotavator.
  • the system (100) includes a display cum controller, a Power Take Off (PTO) inverter, and a PTO motor.
  • the rotavator communicates with the display cum controller through a communication module (e.g., short range communication module or the like).
  • the display cum controller regulates Revolutions Per Minute (RPM) of the rotavator by directing the PTO inverter to operate a PTO motor to increment or decrement the speed of a PTO shaft thereby rotating a blade shaft of the rotavator at the predefined speed corresponding to the nature of soil at a predefined speed.
  • the display cum controller is communicated with the PTO inverter through a Controller Area Network and the PTO inverter provides an input to the PTO motor to manage the predefined speed of the rotavator.
  • the proposed display cum controller which takes few inputs from the user, and regulates the RPM of the rotavator as well as directs the PTO inverter to operate the PTO motor to increment or decrement the speed of a PTO shaft thereby rotating a blade shaft of the rotavator at the predefined speed corresponding to the nature of soil.
  • the predefined speed of the rotavator is determined based on a nature of a soil, wherein a range of the predefined speed of the rotavator (102) is 160 rpm to 180 rpm, upon the obtained information by the display cum controller (104) indicates the soil is a hard soil, wherein a range of the predefined speed of the rotavator (102) is 180 rpm to 200 rpm, upon the obtained information by the display cum controller (104) indicates the soil is a medium soil, and wherein a range of the predefined speed of the rotavator (102) is 210 rpm to 230 rpm, upon the obtained information by the display cum controller (104) indicates the soil is a soft soil.
  • the proposed display cum controller has an advantage over an existing rotavator system wherein a mobile system is eliminated in the architecture because of the following reasons: Advantage of buzzer display over the phone:
  • the present system displays all the features same as smart rotavator and also it directs the PTO inverter to work according to the different soil RPM requirement.
  • FIGS. 1 through 8 where similar reference characters denote corresponding features consistently throughout the figures, there are shown preferred embodiments.
  • FIG. 1 depicts an overview of a system (100) in which a display cum controller (104) regulates a speed (RPM) of a rotavator (102), according to embodiments as disclosed herein.
  • FIG. 2 depicts an example system (e.g., tractor or the like) in which the proposed display cum controller (104) regulates the speed of the rotavator (102) as well as directs the PTO inverter to operate at the predefined speed, according to embodiments as disclosed herein.
  • the tractor can be, for example, but not limited to electric tractors, internal combustion engine (ICE) tractors and battery based electric tractors.
  • the system (100) includes the display cum controller (104), the PTO inverter (106) and a PTO motor (108).
  • the smart rotavator (102) is communicated with the display cum controller (104) through a communication module (e.g. short range communication module or the like).
  • the short range communication module can be, for example, but not limited to, a Bluetooth communication module, an infrared communication module, a near-field communication module, an ultra-band communication module, an ultrawide band (UWB) communication module, a Zigbee module or the like.
  • the display cum controller (104) is communicated with the PTO inverter (106) through a Controller Area Network (CAN-H) and a CAN-E.
  • CAN-H Controller Area Network
  • CAN-E Controller Area Network
  • the PTO inverter (106) provides an input signal to the PTO motor (108) to manage the predefined speed of the smart rotavator (102).
  • the smart rotavator (102) sends a speed of a rotavator blade (not shown) via the Bluetooth module to the display cum controller (104).
  • the display cum controller (104) maps an input speed with the corresponding selected rotor gear (not shown) by the user.
  • the information of the selected rotor gear and RPM is depicted in the FIG. 6 and FIG. 7. Further, according to soil condition, the rotor gear have to be selected.
  • the display cum controller (104) Upon selection of the rotor gear, the display cum controller (104) takes the input and maps the variant speed versus a predefined speed of a rotavator blade (i.e., the difference between the input speed and the predefined speed is taken as the error.
  • the error is passed on the PTO inverter (104) for increment or decrement in a PTO speed.
  • the middle value of the predefined speed range is given to the PTO inverter (106) and the rotavator speed is monitored as a closed loop system as shown in the FIG. 3.
  • the heterogenous nature of soil doesn’t allow the rotavator (102) to operate at the predefined speed, hence the closed loop system is designed as such that there is continuous monitoring of the same in the real time and predefined speed is achieved.
  • the display system eliminates the use of multi-gear rotavator system which automatically adjusts its speed based on an input variant and rotor gear.
  • the system reduces the drudgery, saves time, and eliminate the spillage of lubricant oil while changing the rotor gears for getting different speed according to soil condition. Better productivity, high field capacity and less fuel consumption also increases productivity of the operation for rotavator.
  • the display system is an alternate to mobile system because of following reasons:
  • the proposed system (100) can be a wrist band and includes a magnet at back to attach it with instrument cluster.
  • the display can be tied on a neck.
  • FIG. 3 illustrates a hardware architecture of the display cum controller (104), according to embodiments as disclosed herein.
  • the display cum controller (104) includes a battery charger chip, a transient protection, a USB port, a battery status monitoring, an ON/OFF switch, a buzzer and the display.
  • the battery charger chip charges the battery of the display cum controller (104) through the USB port and ON-OFF switch.
  • the battery status monitoring monitors the battery level.
  • the transient protection unit re-directs an energy in transients by utilizing the differences between a transient and an intended signal waveform.
  • FIG. 4 illustrates screen information of the display cum controller (104), according to embodiments as disclosed herein.
  • the display cum controller (104) includes a power switch, an up-switch, a down-switch, a select switch, a USB charging port, a battery, a LED indication, a buzzer, a charging indication, a device vibrator, and a display.
  • the power switch is used for power ON/power OFF the display cum controller (104).
  • the up-switch, the down-switch, and the select switch are used when a user of the display cum controller (104) does the operation manually.
  • the USB charging port is used for charging the battery.
  • the LED indication is used for indicating the nature of the soil (e.g.
  • the charging indication is used for indicating the level of the charging.
  • the buzzer and the device vibrator are used for alerting the user when the speed of the rotavator blade is not in the predefined speed in accordance with the soil condition.
  • FIG. 5 and FIG. 6 are example illustrations (600 and 700) in which the display information is presented on a user interface of the display cum controller (104), according to embodiments as disclosed herein.
  • the user interface displays the RPM, a mode of the gear, total trip information, a battery status, a usage of the short range communication module, an oil level, an alternative energy usage information, and charging indication.
  • FIG. 7 depicts example closed loop system/operations in which the proposed display cum controller (104) regulates the RPM of the rotavator (102), according to embodiments as disclosed herein.
  • FIG. 8 depicts a flowchart indicating steps of a method (300) for regulating speed of the rotavator (102), according to embodiments as disclosed herein.
  • the method (300) includes, obtaining, by a display cum controller (104), information about a nature of a soil.
  • the method (300) includes, determining, by the display cum controller (104), a predefined speed of the rotavator (102) based on the obtained nature of the soil.
  • the method (300) includes, comparing, by the display cum controller (104) an operating speed (input speed) of the rotavator (102) with the determined predefined speed of the rotavator (102).
  • the method (300) includes, determining, by the display cum controller (104), an error in the speed based on a result of the comparison.
  • the method (300) includes, sending, by the display cum controller (104), a control signal to the PTO inverter (106) based on the determined error.
  • the method (300) includes operating, by the PTO inverter (106), the PTO motor (108) to increment or decrement the speed of a PTO shaft based on the control signal from the display cum controller (104).
  • the method (300) includes controlling, by the PTO motor (108), a rotation of a blade shaft of the rotavator (102) at the predefined speed based on the increment or decrement of the speed of the PTO shaft by the PTO motor (108).
  • the method (300) includes indicating, by a user interface of the display cum controller (104) the speed of the rotavator (102), a mode of a gear, total trip information, a battery status, a usage of the short range communication module, an oil level, an alternative energy usage information, and charging indication. Furthermore, the method (300) includes alerting, by at least one of a buzzer or a device vibrator, when the operating speed of the rotavator is different from the determined predefined speed.
  • the embodiments disclosed herein can be implemented through at least one software program running on at least one hardware device and performing network management functions to control the network elements.
  • the elements shown in FIG. 1 include blocks which can be at least one of a hardware device, or a combination of hardware device and software module.
  • VHDL Very high speed integrated circuit Hardware Description Language
  • the hardware device can be any kind of portable device that can be programmed.
  • the device may also include means, which could be, for example, a hardware means, for example, an Application-specific Integrated Circuit (ASIC), or a combination of hardware and software means, for example, an ASIC and a Field Programmable Gate Array (FPGA), or at least one microprocessor and at least one memory with software modules located therein.
  • ASIC Application-specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the method embodiments described herein could be implemented partly in hardware and partly in software.
  • the invention may be implemented on different hardware devices, e.g. using a plurality of Central Processing Units (CPUs).
  • CPUs Central Processing Units
  • the technical advantages of the system (100) for managing speed of the rotavator (102) are as follows.
  • the display cum controller automatically adjusts speed of the rotavator based on an input variant and a rotor gear.
  • the buzzer and the device vibrator alerts the user when the operating speed of the rotavator is different from the determined predefined speed.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

L'invention concerne de manière générale des rotoculteurs et, plus particulièrement, un système (100) et un procédé (200) de gestion d'une vitesse du rotoculteur en fonction de l'état du sol. Le système (100) comprend un contrôleur d'affichage (104), un onduleur de prise de force (PTO) (106) et un moteur PTO (108). Le rotoculteur (102) communique avec le contrôleur d'affichage (104) par l'intermédiaire d'un module de communication. Le contrôleur d'affichage (104) régule la vitesse du rotoculteur (102) en dirigeant l'onduleur de PTO (104) pour faire fonctionner le moteur PTO (108) afin d'augmenter ou de diminuer la vitesse d'un arbre de prise de force, ce qui permet de faire tourner un arbre de lame de rotoculteur (102) à une vitesse prédéfinie correspondant à la nature du sol. Le système proposé (100) élimine une utilisation d'un système de rotoculteur à engrenages multiples qui ajuste automatiquement sa vitesse sur la base d'une variante d'entrée et d'un engrenage de rotor.
PCT/IN2023/050236 2022-11-18 2023-03-13 Système et procédé de gestion de vitesse de rotoculteur WO2024105682A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202241066359 2022-11-18
IN202241066359 2022-11-18

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WO2024105682A1 true WO2024105682A1 (fr) 2024-05-23

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4025528B2 (ja) * 2001-10-24 2007-12-19 ヤンマー農機株式会社 ロータリー耕耘作業機を備えたトラクタの走行制御装置
US8160784B2 (en) * 2008-03-31 2012-04-17 Kubota Corporation Operation parameter display system for working vehicle fitted with working implement
IN202141028053A (fr) * 2021-06-22 2022-03-11

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4025528B2 (ja) * 2001-10-24 2007-12-19 ヤンマー農機株式会社 ロータリー耕耘作業機を備えたトラクタの走行制御装置
US8160784B2 (en) * 2008-03-31 2012-04-17 Kubota Corporation Operation parameter display system for working vehicle fitted with working implement
IN202141028053A (fr) * 2021-06-22 2022-03-11

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