DESC:[0011] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0012] The embodiments herein achieve athrottle control mechanism for a vehicle. Further, embodiments herein achieve the throttle control mechanism for an agricultural vehicle, which alters a speed of an engine and to maintain the change in speed of the engine at a constant value based on the type of field application and type of agricultural implement coupled to the agricultural vehicle. Referring now to the drawings Figs.1 through 2, where similar reference characters denote corresponding features consistently throughout the figures, there are shown embodiments.
[0013] Fig. 1 depicts a schematic view of a throttle control mechanism (100) for a vehicle, according to an embodiment as disclosed herein.The throttle control mechanism (100) is adapted to change a speed of an engine (not shown) and maintain the change in speed of the engine for setting the speed of the engine at a constant value based on the type of field application and type of agricultural implement (not shown) coupled to the vehicle. In an embodiment, the throttle control mechanism (100) includes air compressor (102), an extendable and retractable member (104), a connecting link (106), a control switch (107), a limit switch (108), a limit switch mounting bracket (110), a mounting bracket (112), a control switch mounting bracket (114), a plurality of springs (116) and a spring holding bracket (118). For the purpose of this description and ease of understanding, the throttle control mechanism (100) is an electro-pneumatic throttle control mechanism provided in an agricultural vehicleto alter the speed of the engine (not shown) and to maintain the change in speed of the engine (not shown) at a constant value based on the type of field application and type of agricultural implement coupled to the agricultural vehicle. It is also within the scope of the embodiment herein to provideat least one of a hydraulic actuator, an extendable and retractable arrangement, a telescopic arrangement, a pneumatic actuator, an electric motor with an extendable and retractable shaft in the throttle control mechanism (100) for altering the speed of the engine and to maintain the change in speed of the engine at a constant value in any other type of vehicle without otherwise deterring the intended function of the throttle control mechanism (100) as an be deduced from the description.
[0014] The air compressor (102) is adapted to provide compressed air to the extendable and retractable member (104). The air compressor (102) is connected with the control switch (104). The air compressor (102) is provided in fluid communication with the extendable and retractable member (104) through a high pressure pipe (100H).The air compressor (102) is connected with the limit switch (108).
[0015] The extendable and retractable member (104) is adapted to be provided in fluid communication with the air compressor (102). The extendable and retractable member (104) is connected with the control switch (107) through a low pressure pipe (100L). The extendable and retractable member (104) is provided in fluid communication with the air compressor (102) through the high pressure pipe (100H). The extendable and retractable member (104) is coupled with a lever (10L) of a fuel injection pump (10P) through the connecting link (106) and the spring holding bracket (118). The extendable and retractable member (104) is mounted to the mounting bracket (112). The extendable and retractable member (104) is a bellow.The extendable and retractable member (104) is adapted to receive compressed air from the air compressor (102) and moves between at least one of an extended position in which the extendable and retractable member (104) is near to the limit switch (108), and a retracted position in which the extendable and retractable member (104) is away from the limit switch (108).
[0016] The connecting link (106) is adapted to connect the extendable and retractable member (104) with the lever (10L) of the fuel injection pump (10P). The connecting link (106) includes a first end (106f) adapted to be coupled with the extendable and retractable member (104) through the spring holding bracket (118),and a second end (106s) adapted to be connected with a lever (10L) of a fuel injection pump (10P).
[0017] The control switch (107) is adapted to be moved between an ON position in which the control switch (107) is adapted to allow electric current to the air compressor (102), and an OFF position in which the control switch (107) is adapted to cut off electric current to the air compressor (102). The control switch (107) is connected to a main battery (10B) through an ignition switch (10I) of the vehicle. It is also within the scope of the embodiment herein to connect the control switch (107) with a separate battery unit. The control switch (107) is connected to the air compressor (102). The control switch (107) is connected with the extendable and retractable member (104) through the low pressure pipe (100L). The control switch (107) is adapted to be mounted onto the control switch mounting bracket (114).
[0018] The limit switch (108) is adapted to cut off electric current to the air compressor (102) on engagement of the lever (10L) with the limit switch (108). The limit switch (108) is connected with the air compressor (102). The limit switch mounting bracket (110) is adapted to mount the limit switch (108).
[0019] The mounting bracket (112) is adapted to mount the extendable and retractable member (104).The control switch mounting bracket (114) is adapted to mount the control switch (107).
[0020] The plurality of springs (116) is adapted to move the extendable and retractable member (104) to the retracted position on exit of compressed air from the extendable and retractable member (104). The plurality of springs (116) is provided inside the extendable and retractable member (104). One end of each spring (116) is adapted to be connected with the mounting bracket (112) and another end of each spring (116) is adapted to be connected with the spring holding bracket (118). The spring holding bracket (118) is adapted to hold the plurality of springs (116).
[0021] When there is a requirement to set the speed of the engine, the air compressor (102) is adapted to provide compressed air to the extendable and retractable member (104) which moves between at least one of the extended position and the retracted position to move the connecting link (106) which in turn moves the lever (10L) of the fuel injection pump (10P) to alter the speed of the engine (not shown).
[0022] Fig. 2 depicts a flowchart showing the steps of a method (200) for setting the speed of the engine in the vehicle, according to the embodiment herein. In an embodiment, the method (200) includes, moving a control switch (107) to an ON position to allow electric current supply to an air compressor (102), step 202, allowing compressed air flow from the air compressor (102) to an extendable and retractable member (104), step 204 and moving the extendable and retractable member (104) between at least one of an extended position and a retracted position to move a lever (10L) of a fuel injection pump (10P) to alter a speed of an engine and maintain the change in speed of the engine for setting the speed of the engine at a constant value, step 206.
[0023] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
,CLAIMS:1. A throttle control mechanism (100) for a vehicle, said throttle control mechanism (100) comprising:
an air compressor (102);
an extendable and retractable member (104) adapted to be provided in fluid communication with said air compressor (102); and
a connecting link (106) having a first end (106f) adapted to be coupled with said extendable and retractable member (104) and a second end (106s) adapted to be connected with a lever (10L) of a fuel injection pump (10P),
wherein
said air compressor (102) is adapted to provide compressed air to said extendable and retractable member (104) which moves between at least one of an extended position and a retracted position to move said connecting link (106) which in turn moves said lever (10L) of said fuel injection pump(10P) to alter a speed of an engine and maintain the change in speed of the engine for setting the speed of the engine at a constant value.

2. The throttle control mechanism (100) as claimed in claim 1 comprising,
a control switch (107) adapted to be moved between an ON position in which said control switch (107) is adapted to allow electric current to said air compressor (102),and an OFF position in which said control switch (107)is adapted to cut off electric current to said air compressor (102)
3. The throttle control mechanism (100) as claimed in claim 2 comprising, control switch mounting bracket (114) adapted to mount said control switch (107).

4. The throttle control mechanism (100) as claimed in claim 1 comprising,
a limit switch (108) adapted to cut off electric current to said air compressor (102) on engagement of said lever (10L) with said limit switch (108).

5. The throttle control mechanism (100) as claimed in claim 4 comprising, a limit switch mounting bracket (110) adapted to mount said limit switch (108).

6. The throttle control mechanism (100) as claimed in claim 1 comprising a plurality of springs (116) adapted to move said extendable and retractable member (104) to the retracted position on exit of compressed air from said extendable and retractable member (104).

7. The throttle control mechanism (100) as claimed in claim 1 comprising,
a mounting bracket (112) adapted to mount said extendable and retractable member (104).

8. The throttle control mechanism (100) as claimed in claim 7, comprising a spring holding bracket (118) adapted to hold each of said spring (116),
wherein one end of each of said spring (116) is adapted to be connected to said mounting bracket (112) and another end of each of said spring (116) is adapted to be connected to said spring holding bracket (118).

9. A method (200) for setting a speed of an engine in a vehicle, said method (200) comprising:
moving a control switch (107) to an ON position to allow electric current supply to an air compressor (102);
allowing compressed air flow from said air compressor (102) to an extendable and retractable member (104);
moving said extendable and retractable member (104) between at least one of an extended position and a retracted position to move a lever (10L) of a fuel injection pump (10P) to alter a speed of an engine and maintain the change in speed of the engine for setting the speed of the engine at a constant value.