METHOD OF OPERATING HYBRID POWER TRANSMISSION MECHANISM
USED IN A BACKHOE LOADER
Field of Invention
The invention generally relates to a novel method of operating hybrid power
transmission mechanism used in a backhoe loader. Using the said method of
the present disclosure, a hybrid backhoe loader comprising of hybrid power
sources involving a synergic assembly of engine and driveline assembly which,
performs its functions effectively, particularly the driving and hydraulics-based
backhoe/loader operations. The method of operating hybrid power
transmission mechanism used in a backhoe loader is characterized in effective
power transmission through driveline of the hybrid backhoe loader, either from
fluid fuel or from battery-based electricity or from both and smooth changeover as applicable thereto.
The present invention also provides a hydraulic backhoe loader with novel
construction, which complements the said method of operating and controlling
its engine and driveline assembly, particularly by optionally selecting any of the
following modes of working, as per the specific requirement and demand as
follows:
• Engine Only Mode: Driving
• Engine + Motor/Battery Mode: Driving
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• Engine + Motor/Battery Mode: Hydraulic Operations
• Motor/Battery Only Mode: Hydraulic Operations [In machine stationary
condition]
• Charging Mode: Battery Charging
Background and object of the invention:
A conventional backhoe loader is a heavy construction equipment vehicle,
particularly having a traditional tractor type base vehicle; wherein it is fitted
with a loader-style shovel/bucket on the front side and a backhoe on the back
side.
Backhoe loaders are very common and can be used for a wide variety of tasks:
construction, small demolitions, light transportation of building materials,
powering building equipment, digging holes/excavation, landscaping, breaking
asphalt, and paving roads. Often, the backhoe bucket can also be replaced with
powered attachments such as a breaker, grapple, auger, or a stump grinder.
Single vehicle like machine, which is capable of moving forward/backward and
performing operations like digging and loading at its both sides, is considered
as most versatile construction equipment for urban engineering. This type of
machine is similar to and derived from what is now known as a TLB (TractorLoader-Backhoe), which is to say, an agricultural tractor fitted with a front
loader and rear backhoe attachment.
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With the technological advancement, it is the demand of the age to renovate
conventional backhoe loader machines towards making it more fuel efficient
and eco-friendly, more purpose specific, and more dependent on nonconventional power source(s).
There may be few hybrid Backhoe loader known; however, this is relatively new
area of interest to the manufacturing companies and persons skilled in the art.
More research is required to develop effective, safe and functionally reliable
backhoe loader, which is one of the most complex heavy construction
equipment frequently used in urban areas.
Accordingly, it is also required to develop and advance novel methods for
smooth and effective functioning of such complex machines like hybrid
backhoe loader and its operational mechanisms thereof, namely power
transmission through the driveline assembly, driving mechanism as well as
hydraulic system. Developing novel methods for operating/controlling hybrid
backhoe loader, involving state-of-the-art automation and software-hardware
based control mechanism to synergize fuel burning engine assembly and
alternator/motor/battery driven electric power and the mechanical driveline
thereof, is the major concern of the instant invention, as described and
illustrated hereinbelow.
Prime object of the present invention is to provide a novel method of operating
hybrid power transmission mechanism used in a backhoe loader.
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Another object of the present invention is to provide a hybrid backhoe loader,
comprising a newly designed driveline assembly, which is capable of
performing all its functions effectively by the method of operation/control, as
disclosed herein, preferably in any of the following optionally/automatically
selected/provisioned modes of power transmission:
• Engine Only Mode: Driving
• Engine + Motor/Battery Mode: Driving
• Engine + Motor/Battery Mode: Hydraulic Operations
• Motor/Battery Only Mode: Hydraulic Operations [In machine stationary
condition]
• Charging Mode: Battery Charging
Another object of the present invention is to provide a novel method of
operating hybrid power transmission mechanism used in a backhoe loader for
realizing fuel efficient, safe and effective functioning of the said hybrid backhoe
loader.
Another object of the present invention is to provide a novel method of
operating hybrid power transmission mechanism; wherein the engine assembly
is so designed that it can function in close relation with another power source
and support functioning of all components, namely vehicle-driving and controls
thereof, backhoe-side functions involving hydraulic mechanism and the loader
side operations using the hydraulic systems thereof, without affecting the
formal functioning of said hybrid backhoe loader.
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Another object of the present invention is to provide a novel method of
operating hybrid power transmission mechanism for effective functioning, as
per optionally provisioned parameters for a backhoe loader functions,
particularly for a preferred embodiment of the hybrid backhoe loader, wherein
the engine is selected at ~50HP and power is boosted in the range of 75 to
80HP by hybrid system, adopted therein, which includes electric motor, battery
and power electronic systems.
Description of the invention:
The present invention is to provide a novel method for smooth and effective
functioning of hybrid backhoe loader, as disclosed herein, and its operational
mechanisms thereof namely power transmission through the driveline
assembly, driving mechanism as well as hydraulic system.
Developing novel methods for operating/controlling hybrid backhoe loader,
involving state-of-the-art automation and software-hardware based control
mechanism to synergize fuel burning engine assembly and
alternator/motor/battery driven electric power and the mechanical driveline
thereof, is the major concern of the instant invention, as described and
illustrated hereinbelow.
Said hybrid backhoe loader, comprising a newly designed driveline assembly,
which is capable of performing all its functions effectively by the method of
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operation/control, as disclosed herein, preferably in any of the following
optionally/automatically selected/provisioned modes of power transmission:
• Engine Only Mode: Driving
• Engine + Motor/Battery Mode: Driving
• Engine + Motor/Battery Mode: Hydraulic Operations
• Motor/Battery Only Mode: Hydraulic Operations [In machine stationary
condition]
• Charging Mode: Battery Charging
The method of operating hybrid power transmission mechanism used in a
backhoe loader, is so customized involving the novel engine-driveline assembly
of the said hybrid backhoe loader, that it smoothly realizes fuel efficient, safe
and effective functioning of the said hybrid backhoe loader.
Said method of operating hybrid power transmission mechanism involves
inventive steps as indicated in the enclosed illustrative drawings pertaining to
the backhoe loader and its various assemblies; wherein the engine assembly is
so designed that it can function in close relation with another power source
and support functioning of all components, namely vehicle-driving and controls
thereof, backhoe-side functions involving hydraulic mechanism and the loader
side operations using the hydraulic systems thereof, without affecting the
formal functioning of said hybrid backhoe loader.
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The backhoe loader as described herein, due to its unique construction,
compact integration of its components including hybrid engine-electric motor
assembly and novel control/regulation of its functionality, provides a reliable,
efficient, cost-effective alternatives to traditional drive train systems used in
such machines.
The preferred embodiment of the hybrid backhoe loader, as disclosed herein,
wherein the engine is selected at ~50HP and power is boosted in the range of
75 to 80HP by hybrid system, adopted therein, which includes electric motor,
battery and power electronic systems. Said preferred embodiment, by way of its
constructional/structural components and customized assemblies thereof, is
provided with novel mechanical method(s) for performing its smooth driving
and other backhoe/loader operations, duly controlled and regulated with stateof-the-art electronics and software-hardware based control mechanism(s)
employed with the driver/operator, in the cabin of the said hybrid backhoe
loader.
Short details of the drawings, which indicate/illustrate the hybrid backhoe
loader machine, its novel construction, and mode of functioning involving its
novel engine-driveline assembly:
Figure 1: The complete representative view of the hybrid backhoe loader,
showing all major components thereof (engine-driveline assembly is not visible
herein);
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Figure 2: The assembly of mechanism and tools pertaining to drive/operate
and control of various structural components/assemblies of the instant hybrid
backhoe loader, particularly assembled within the driver’s/operator’s cabin
thereof;
Figure 3: Complete schematic view of the driveline assembly of the present
hybrid backhoe loader;
Figure 4: Schematic plan for selecting mode of function of the hybrid backhoe
loader involving its driveline and power transmission thereof.
The subject matter discussion herein is particularly the method of operating
hybrid power transmission mechanism used in a backhoe loader of the instant
invention wherein the hybrid backhoe loader comprises a newly designed
driveline assembly, is so designed that the said method of operating hybrid
power transmission is realized in close relation with power source as fluid fuel
burning engine and/or electric motor/battery and support functioning of all
components, namely vehicle-driving and controls thereof, backhoe operational
functions involving hydraulic mechanism and the loader side operations using
the hydraulic systems thereof, without affecting the normal functioning of said
hybrid backhoe loader.
Said Hybrid Backhoe loader of the instant invention, apart from its normal
components like back-hoe, loader, cabin etc., comprising its characteristic
structural and constructional features such as assembly of hybrid backhoe
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loader driveline, engine, clutch, pump, motor and battery etc. Said hybrid
backhoe loader driveline-engine assembly is schematically depicted in figure 3.
Said newly designed hybrid driveline assembly, is capable of performing all its
functions effectively in any of the following modes of power transmission,
preferably optionally selected:
• Engine Only Mode: Driving
• Engine + Motor/Battery Mode: Driving
• Engine + Motor/Battery Mode: Hydraulic Operations
• Motor/Battery Only Mode: Hydraulic Operations [In machine stationary
condition]
• Charging Mode: Battery Charging
Said engine and driveline assembly receives power from two sources: from the
fuel burning engine and/or electric power generated/stored in the said
Backhoe Loader.
The invention generally relates to the engine and driveline assembly used in a
hybrid backhoe loader; wherein the said engine and driveline assembly receives
power from two sources: from the fuel burning engine and/or electric power
generated/stored in the said Backhoe Loader. Said engine and driveline
assembly is so constructed that it is capable of generating power either from
fluid fuel or from battery based electricity or from both.
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Said backhoe loader is provided with a novel engine assembly which has been
downsized to ~50HP and its power is boosted in the range of 75 to 80HP by
Hybrid system, that is involving the electric power source.
Although the invention has been described with reference to specific
embodiments, this description is not meant to be construed in a limiting sense.
Various modifications of the disclosed embodiments, as well as alternate
embodiments of the invention, will become apparent to persons skilled in the
art upon reference to the description of the invention. It is therefore
contemplated that such modifications can be made without departing from the
spirit or scope of the present invention as defined.

We Claim:
1. Method of operating hybrid power transmission mechanism used in a
backhoe loader, wherein a hybrid backhoe loader, comprising a newly designed
driveline assembly, is so designed that the said method of operating hybrid
power transmission is realized in close relation with power source as fluid fuel
burning engine and/or electric motor/battery and support functioning of all
components, namely vehicle-driving and controls thereof, backhoe operational
functions involving hydraulic mechanism and the loader side operations using
the hydraulic systems thereof, without affecting the normal functioning of said
hybrid backhoe loader.
2. Method of operating hybrid power transmission mechanism used in a
backhoe loader, as claimed in claim 1, wherein said method of
operation/control for the backhoe loader includes, preferably in any of the
following optionally/automatically selected/provisioned, modes of power
transmission:
• Engine Only Mode: Driving
• Engine + Motor/Battery Mode: Driving
• Engine + Motor/Battery Mode: Hydraulic Operations
• Motor/Battery Only Mode: Hydraulic Operations [In machine
stationary condition]
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• Charging Mode: Battery Charging
3. Method of operating hybrid power transmission mechanism used in a
backhoe loader, as claimed in claim 1-2, wherein said method is characterized
in operating hybrid power transmission mechanism used in a backhoe loader
for realizing fuel efficient, safe and effective functioning of the said hybrid
backhoe loader.
4. Method of operating hybrid power transmission mechanism used in a
backhoe loader, as claimed in any of the preceding claims, wherein the engine
assembly of the hybrid backhoe loader is so designed that it can function in
close relation with another power source and support functioning of all
components, namely vehicle-driving and controls thereof, backhoe-side
functions involving hydraulic mechanism and the loader side operations using
the hydraulic systems thereof, without affecting the formal functioning of said
hybrid backhoe loader.
5. Method of operating hybrid power transmission mechanism used in a
backhoe loader, as claimed in any of the preceding claims, wherein said
method of operating hybrid power transmission mechanism for effective
functioning, as per optionally provisioned parameters for a backhoe loader
functions, particularly for a preferred embodiment of the hybrid backhoe
loader, wherein the engine is selected at ~50HP and power is boosted in the
range of 75 to 80HP by hybrid system, adopted therein, which includes electric
motor, battery and power electronic systems.
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6. Method of operating hybrid power transmission mechanism used in a
backhoe loader, as claimed in any of the preceding claims, wherein said engine
assembly is so designed that it can function in close relation with another
power source and support functioning of all components, namely vehicledriving and controls thereof, backhoe-side functions involving hydraulic
mechanism and the loader side operations using the hydraulic systems thereof,
without affecting the formal functioning of said hybrid backhoe loader.
7. Method of operating hybrid power transmission mechanism used in a
backhoe loader, as claimed in any of the preceding claims, wherein the
inventive steps involved with said method for operating hybrid backhoe loader
and its hybrid power transmission mechanism is indicated/disclosed with the
help of following illustrative schematic drawings, without limiting the overall
inventive concept disclosed herein, particularly into the inventiveness involved
with the said drawings or its schematic application plan, indicated therein