FIELD
The present disclosure relates to vehicle control systems. More particularly, the
present disclosure relates to a dynamic control system and method for preventing
lift-over and roll-over of a vehicle.
BACKGROUND
The background information herein below relates to the present disclosure but is
not necessarily prior art.
Currently, heavy duty vehicles such as tractors are being used in many
applications such as agricultural land preparation and building construction.
However, such vehicles are susceptible to the uncontrolled lifting about their front
or rear wheels, consequently leading to a roll over situation. This stability failure
of vehicle generally depends on three major conditions – (i) Loading of the
vehicle, (ii) Vehicle wheel constraints, and (iii) Driver’s intentions. These
conditions vary with vehicle types and operating parameters. For example, the
15 loading condition on a tractor depends on the type of implement attached to it and
tasks it is required to perform. A tractor may be loaded heavily by attaching a
tipping trolley on its rear side or a front-end loader to its front side. Conversely, it
can also be attached to a light-weight cultivator. The loading condition of tractor
changes the center of gravity of the overall tractor-implement system, which if
20 lies outside the stability area of tractor generates a moment about either front or
rear axle of tractor. The stability area of tractor is an imaginary quadrilateral
formed by joining each of its wheels, where the axles of the tractor form edges of
this quadrilateral. Stable operation of an automobile can be achieved by loading it
such that its center of gravity is within the stability area. If the center of gravity of
25 a tractor lies outside this stability area, the automobile may rollover. This is called
body roll of automobile, which can cause serious injury to the driver. For the
reasons of safety, it is thus desirable to detect the possibility of this roll-over
condition in a reliable manner.
2
Along with loading of a vehicle, the wheel constraints can also result in vehicle
roll over. For example, when a tractor is used in wet soil during puddling or sandy
soils during land preparation, it is highly possible that the driving wheels of
tractors get stuck in the wet or sandy soils. If the driving wheels get stuck, the
5 torque produced by engine will try to rotate the tractor body about its driving axle.
Further, rash driving conditions such as sudden acceleration and sudden
deceleration can result in generation of a temporary inertial force, which could
create additional moments, thereby leading to lifting of tractor about its axles,
which is not desired.
10 There is, therefore, felt a need to provide a dynamic control system and method
for preventing lifting and rolling over of a vehicle that eliminates the abovementioned
drawbacks.
OBJECTS
Some of the objects of the present disclosure, which at least one embodiment
15 herein satisfies, are as follows:
It is an object of the present disclosure to ameliorate one or more problems of the
prior art or to at least provide a useful alternative.
It is an object of the present disclosure to provide a dynamic control system and
method for preventing lift-over and roll-over control of a vehicle.
20 Another object of the present disclosure is to provide a system and method that
prevents lifting of vehicle about its rear axle.
Still another object of the present disclosure is to provide a system and method
that prevents rollover of the vehicle.
Yet another object of the present disclosure is to provide a system and method that
25 is reliable.
3
Still another object of the present disclosure is to provide a system and method
that measures inclination of front portion of the vehicle with respect to a
horizontal plane which is the plane normal to the direction of force of gravity.
Yet another object of the present disclosure is to provide a system and method that
5 provides rollover safety when the vehicle is climbing up an inclined road/slope.
Still another object of the present disclosure is to provide a system and method
that alerts an operator about possible rollover of a vehicle.
Other objects and advantages of the present disclosure will be more apparent from
the following description, which is not intended to limit the scope of the present
10 disclosure.
SUMMARY
The present disclosure envisages a dynamic control system for preventing lifting
and rolling over of a vehicle. The system comprises a strain measuring circuit, an
inclination sensor, and a control unit. The strain measuring circuit is mounted on a
15 front wheel component of each of the front wheels of the vehicle. In an
embodiment, the front wheel component is a kingpin tube. The front wheel
components are mounted on a hollow front axle support shaft and connected to
front wheels of the vehicle. The strain measuring circuit is configured to sense
deformation of the front wheel components, and is further configured to generate
20 a deformation detection signal representative of the sensed deformation. In an
embodiment, the strain measuring circuit comprises at least one Wheatstone
bridge. The Wheatstone bridge comprises four legs of which one leg includes a
strain gauge. The inclination sensor is mounted on front portion of the vehicle.
The inclination sensor is configured to detect angular displacement of the front
25 portion of the vehicle with respect to a horizontal plane, and is further configured
to generate an angle detection signal representative of the detected inclination.
The horizontal plane is the plane normal to the direction of force of gravity. The
4
inclination sensor is selected from a group consisting of a gyro sensor, a tilt
sensor, and an inclinometer. The control unit is configured to cooperate with the
strain measuring circuits and the inclination sensor to receive the deformation
detection signals and the angle detection signal respectively, and is further
5 configured to generate a control signal for controlling engine torque and an
activating signal for activating brake actuators of the vehicle based on the
received deformation detection signals and angle detection signal to prevent
lifting and rolling over of the vehicle.
In an embodiment, the system includes an accelerator pedal position sensor
10 configured to detect pressing of the accelerator pedal of the vehicle.
In an embodiment, the control unit comprises a signal conditioning unit, a
repository, a first comparator module, a second comparator module, and a
processor. The signal conditioning unit is configured to receive the deformation
detection signals and the angle detection signal, and is further configured to
15 generate corresponding deformation and angle values. The repository is
configured to store a pre-determined threshold deformation value and a predetermined
threshold rollover angle value. The first comparator module is
configured to cooperate with the signal conditioning unit to receive the
deformation values associated with front wheels of the vehicle, and is further
20 configured to cooperate with the repository to generate a lift detection signal when
each of the deformation values become less than or equal to the pre-determined
threshold deformation value. The second comparator module is configured to
cooperate with the signal conditioning unit to receive the angle value associated
with front portion of the vehicle, and is further configured to cooperate with the
25 repository to generate a rollover detection signal when the angle value becomes
greater than the pre-determined threshold rollover angle value. The processor is
configured to cooperate with the accelerator pedal position sensor, the signal
conditioning unit, the first comparator module, and the second comparator
module.
5
In an embodiment, the processor comprises an anti-lifting module, an over-riding
module, a first anti-rolling module, and a second anti-rolling module. The antilifting
module is configured to generate a first control signal, upon receiving the
lift detection signal, for reducing engine torque until the deformation values
5 becomes greater than the pre-determined threshold deformation value. The overriding
module is configured to generate a first override signal for overriding the
first control signal when the accelerator pedal of the vehicle is detected to be
pressed for a pre-defined period. The first anti-rolling module is configured to
generate a second override signal for overriding the first override signal upon
10 receiving the rollover detection signal and enable said anti-lifting module to
reduce the engine torque. The second anti-rolling module is configured to
generate a warning alert signal for notifying an operator and the activating signal
for activating the brake actuators, when the rollover detection signal is received
without receiving the lift detection signal.
15 Advantageously, the system includes an alerting device configured to be triggered
upon receiving the warning alert signal. The alerting device is selected from a
group consisting of an indicator, a buzzer, an alarm, a bell, and a user interface.
The present disclosure also envisages a dynamic control method for preventing
lifting and rolling over of a vehicle. The method comprises the following steps:
20 • sensing, by strain measuring circuits, deformation of front wheel
components;
• generating, by the strain measuring circuits, a deformation detection signal
representative of the sensed deformation;
• detecting, by an inclination sensor, angular displacement of front portion
25 of the vehicle with respect to a horizontal plane, wherein the horizontal
plane is the plane normal to the direction of force of gravity;
• generating, by the inclination sensor, an angle detection signal
representative of the detected inclination;
6
• receiving, by a control unit, the deformation detection signals and the
angle detection signal from the strain measuring circuits and the
inclination sensor respectively; and
• generating, by the control unit, a control signal for controlling engine
5 torque and an activating signal for activating brake actuators of the vehicle
based on the received deformation detection signals and angle detection
signal.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
A dynamic control system and method for preventing lift-over and roll-over
10 control of a vehicle of the present disclosure will now be described with the help
of the accompanying drawing, in which:
Figure 1 illustrates a front view of a vehicle with a dynamic control system;
Figure 2 illustrates a block diagram of the system of Figure 1;
Figure 3 illustrates a flow diagram depicting a method for preventing lift-over
15 and roll-over of a vehicle; and
Figures 4A and 4B illustrate a flow diagram depicting a step of generating, by a
control unit, a control signal and activating signals of the method of Figure 3.
LIST OF REFERENCE NUMERALS
100 - System
20 102 - Vehicle
104 - Strain measuring circuit
106 - Front wheel components
108 - Front wheels
7
110 – Inclination sensor
112 – Control unit
114 – Front axle support shaft
116 – Hinge
5 118 – Headlights
202 – Accelerator pedal position sensor
204 – Signal conditioning unit
206 – Repository
208 – First comparator module
10 210 – Second comparator module
212 – Processor
214 – Anti-lifting module
216 – Over-riding module
218 – First anti-rolling module
15 220 – Second anti-rolling module
DETAILED DESCRIPTION
Embodiments, of the present disclosure, will now be described with reference to
the accompanying drawing.
Embodiments are provided so as to thoroughly and fully convey the scope of the
20 present disclosure to the person skilled in the art. Numerous details, are set forth,
8
relating to specific components, and methods, to provide a complete
understanding of embodiments of the present disclosure. It will be apparent to the
person skilled in the art that the details provided in the embodiments should not be
construed to limit the scope of the present disclosure. In some embodiments, well-
5 known processes, well-known apparatus structures, and well-known techniques
are not described in detail.
The terminology used, in the present disclosure, is only for the purpose of
explaining a particular embodiment and such terminology shall not be considered
to limit the scope of the present disclosure. As used in the present disclosure, the
10 forms "a,” "an," and "the" may be intended to include the plural forms as well,
unless the context clearly suggests otherwise. The terms "comprises,"
"comprising," “including,” and “having,” are open ended transitional phrases and
therefore specify the presence of stated features, steps, operations, elements,
modules, units and/or components, but do not forbid the presence or addition of
15 one or more other features, steps, operations, elements, components, and/or
groups thereof. The particular order of steps disclosed in the method and process
of the present disclosure is not to be construed as necessarily requiring their
performance as described or illustrated. It is also to be understood that additional
or alternative steps may be employed.
20 The terms first, second, third, etc., should not be construed to limit the scope of
the present disclosure as the aforementioned terms may be only used to
distinguish one element, component, or section from another element, component,
or section. Terms such as first, second, third etc., when used herein do not imply a
specific sequence or order unless clearly suggested by the present disclosure.
25 A dynamic control system for preventing lift-over and roll-over control of a
vehicle (hereinafter referred as “system 100”), of the present disclosure, is now
being described with reference to Figure 1 through Figure 4B.
9
Figure 1 illustrates a front view of the vehicle 102 with headlights 118. Referring
to Figure 1, the dynamic control system 100 comprises strain measuring circuits
104, an inclination sensor 110, and a control unit 112. Each strain measuring
circuit 104 is mounted on a front wheel component 106 of each of the front
5 wheels 108 of the vehicle 102. In an embodiment, the front wheel component is a
kingpin tube. The front wheel components 106 are mounted on a hollow front axle
support shaft 114 and connected to front wheels 108 of the vehicle 102. The front
axle support shaft 114 is in turn hinged to the vehicle 102 at a hinge point 116.
Each strain measuring circuit 104 is configured to sense deformation of the front
10 wheel components 106, and is further configured to generate a deformation
detection signal representative of the sensed deformation. In an embodiment, the
strain measuring circuit 104 comprises at least one Wheatstone bridge. The
Wheatstone bridge comprises four legs of which one leg includes a strain gauge
and each of the other legs include a known fixed resistor. Two opposite common
15 leg points of the Wheatstone bridge are provided with an input power supply. The
output (i.e. deformation detection signal) is obtained across the remaining
common leg points. The inclination sensor 110 is mounted on front portion of the
vehicle 102. The inclination sensor 110 is configured to detect angular
displacement of the front portion of the vehicle 102 with respect to a horizontal
20 plane, and is further configured to generate an angle detection signal
representative of the detected inclination. The horizontal plane is the plane normal
to the direction of force of gravity.
In an embodiment, the inclination sensor 110 is selected from a group consisting
of a gyro sensor, a tilt sensor, and an inclinometer.
25 The control unit 112 is configured to cooperate with the strain measuring circuits
104 and the inclination sensor 110 to receive the deformation detection signals
and the angle detection signal respectively, and is further configured to generate a
control signal for controlling engine torque and an activating signal for activating
brake actuators of the vehicle 102 based on the received deformation detection
10
signals and angle detection signal to prevent lifting and rolling over of the vehicle
102.
In an embodiment, the system 100 includes an accelerator pedal position sensor
202 configured to detect pressing of the accelerator pedal of the vehicle 102.
5 Referring to an embodiment of Figure 2, the control unit 112 comprises a signal
conditioning unit 204, a repository 206, a first comparator module 208, a second
comparator module 210, and a processor 212. The signal conditioning unit 204 is
configured to receive the deformation detection signals and the angle detection
signal, and is further configured to generate corresponding deformation and angle
10 values. The repository 206 is configured to store a pre-determined threshold
deformation value and a pre-determined threshold rollover angle value. The first
comparator module 208 is configured to cooperate with the signal conditioning
unit 204 to receive the deformation values associated with front wheels 108 of the
vehicle 102, and is further configured to cooperate with the repository 206 to
15 generate a lift detection signal when each of the deformation values become less
than or equal to the pre-determined threshold deformation value. The second
comparator module 210 is configured to cooperate with the signal conditioning
unit 204 to receive the angle value associated with front portion of the vehicle
102, and is further configured to cooperate with the repository 206 to generate a
20 rollover detection signal when the angle value becomes greater than the predetermined
threshold rollover angle value. The processor 212 is configured to
cooperate with the accelerator pedal position sensor 202, the signal conditioning
unit 204, the first comparator module 208, and the second comparator module
210.
25 In an embodiment, the processor 212 comprises an anti-lifting module 214, an
over-riding module 216, a first anti-rolling module 218, and a second anti-rolling
module 220. The anti-lifting module 214 is configured to generate a first control
signal, upon receiving the lift detection signal, for reducing engine torque until
11
both the deformation values becomes greater than the pre-determined threshold
deformation value. The over-riding module 216 is configured to generate a first
override signal for overriding the first control signal when accelerator pedal of the
vehicle 102 is detected to be pressed for a pre-defined period i.e. when the driver
5 is trying to accelerate the vehicle 102 despite of lifting of the vehicle’s front
wheels 108. The first anti-rolling module 218 is configured to generate a second
override signal upon receiving the rollover detection signal to overriding the first
override signal and enable the anti-lifting module 214 to reduce the engine torque.
The second anti-rolling module 220 is configured to generate a warning alert
10 signal for notifying an operator and the activating signal for activating the brake
actuators, when the rollover detection signal is received without receiving the lift
detection signal.
Advantageously, the system 100 includes an alerting device configured to be
triggered upon receiving the warning alert signal. The alerting device is selected
15 from a group consisting of an indicator, a buzzer, an alarm, a bell, and a user
interface.
Referring to Figure 3, the present disclosure also envisages a dynamic control
method 300 for preventing lifting and rolling over of a vehicle 102. The method
300 comprises the following steps:
20 Step 302: sensing, by strain measuring circuits 104, deformation of front wheel
components 106;
Step 304: generating, by the strain measuring circuits 104, a deformation
detection signal representative of the sensed deformation;
Step 306: detecting, by an inclination sensor 110, angular displacement of front
25 portion of the vehicle 102 with respect to a horizontal plane, wherein the
horizontal plane is the plane normal to the direction of force of gravity;
Step 308: generating, by the inclination sensor 110, an angle detection signal
representative of the detected inclination;
12
Step 310: receiving, by a control unit 112, the deformation detection signals and
the angle detection signal from the strain measuring circuits 104 and the
inclination sensor 110 respectively; and
Step 312: generating, by the control unit 112, a control signal for controlling
5 engine torque and an activating signal for activating brake actuators of the vehicle
102 based on the received deformation detection signals and angle detection
signal.
In an embodiment, the method 300 includes detecting, by an accelerator pedal
position sensor 202, the pressing of the accelerator pedal of the vehicle 102.
10 With reference to an embodiment of Figures 4A and 4B, the step of generating,
by the control unit 112, the control signal and the activating signals comprises:
Step 402: receiving, by a signal conditioning unit 204, the deformation detection
signals and the angle detection signal;
Step 404: generating, by the signal conditioning unit 204, deformation and angle
15 values based on the received deformation detection signals and the angle detection
signal;
Step 406: storing, in a repository 206, a pre-determined threshold deformation
value and a pre-determined threshold rollover angle value;
Step 408: receiving, by a first comparator module 208, the deformation values
20 associated with front wheels 108 of the vehicle 102;
Step 410: generating, by the first comparator module 208, a lift detection signal
when each of the deformation values become less than or equal to the predetermined
threshold deformation value;
Step 412: receiving, by a second comparator module 210, the angle value
25 associated with front portion of the vehicle 102 from the signal conditioning unit
204;
13
Step 414: generating, by the second comparator module 210, a rollover detection
signal when the angle value becomes greater than the pre-determined threshold
rollover angle value;
Step 416: generating, by an anti-lifting module 214 of a processor 212, a first
5 control signal, upon receiving the lift detection signal, for reducing engine torque
until the deformation values becomes greater than the pre-determined threshold
deformation value;
Step 418: generating, by an over-riding module 216 of the processor 212, a first
override signal for overriding the first control signal when the accelerator pedal of
10 the vehicle 102 is detected to be pressed for a pre-defined period of time;
Step 420: generating, by a first anti-rolling module 218 of the processor 212, a
second override signal for overriding the first override signal and enabling the
anti-lifting module to reduce the engine torque upon receiving the rollover
detection signal; and
15 Step 422: generating, by a second anti-rolling module 220 of the processor 212, a
warning alert signal for notifying an operator and the activating signal for
activating the brake actuators, when the rollover detection signal is received
without receiving the lift detection signal.
An exemplary Pseudo Code for implementing the method 300 shown in Figures 3,
20 4A and 4B is as follows.
Step 1 - Read strain gauge reading; and
Read inclination sensor reading;
Step 2 - If (strain gauge reading <= pre-determined threshold deformation value)
25 {
Generate command A for reducing engine torque until both the
front wheels come on ground
}
Step 3 - If (accelerator pedal is pressed for t>= pre-defined period)
14
5 Step 4 -
10
15
20
{
Generate Command B to override command A and allow
lifting of front portion of the vehicle (i.e. allow natural
intensions of driver)
If (inclination sensor reading >= pre-determined
threshold rollover angle)
{
Generate Command C to override command
B
Reduce engine torque until both the front
wheels come on ground
Else
}
{
Return to step 3
}
Else
}
{
Return to step 2
}
Step 5 - Else If (strain gauge reading > pre-determined threshold deformation
value and inclination sensor reading >= pre-determined threshold rollover angle)
{
25
Else
Generate warning alert for operator
Activate brake actuators
{
30
Return to step 1
}
15
Thus, the system 100 and method 300 of the present disclosure prevent unwanted
lifting of the vehicle 102 about its rear axle. The system 100 allows reading
inclination angle of the front portion of the vehicle 102 and prevents it from
rolling over. Further, if the vehicle 102 is climbing up a hill and if detected the
5 inclination angle is greater than or equal to the vehicle roll over angle while the
front wheels 108 of the vehicle 102 are still on the ground, the system 100 alerts
an operator about possible rollover of a vehicle 102 and provides rollover safety
by activating the brake actuators.
TECHNICAL ADVANCEMENTS
10 The present disclosure described herein above has several technical advantages
including, but not limited to, the realization of a system for dynamic control of a
vehicle that:
• prevents lifting of vehicle about its rear axle;
• prevents rollover of the vehicle;
15 • is reliable;
• measures inclination of front portion of the vehicle with respect to a
horizontal plane which is the plane normal to the direction of force of
gravity;
• provides rollover safety when the vehicle is climbing up an inclined
20 road/slope; and
• alerts an operator about possible rollover of a vehicle.
The embodiments herein and the various features and advantageous details thereof
are explained with reference to the non-limiting embodiments in the following
description. Descriptions of well-known components and processing techniques
16
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
5 should not be construed as limiting the scope of the embodiments herein.
The foregoing description of the specific embodiments 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
10 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 preferred embodiments, those skilled in the art will
15 recognize that the embodiments herein can be practiced with modification within
the spirit and scope of the embodiments as described herein.
The use of the expression “at least” or “at least one” suggests the use of one or
more elements or ingredients or quantities, as the use may be in the embodiment
of the disclosure to achieve one or more of the desired objects or results.
20 While considerable emphasis has been placed herein on the components and
component parts of the preferred embodiments, it will be appreciated that many
embodiments can be made and that many changes can be made in the preferred
embodiments without departing from the principles of the disclosure. These and
other changes in the preferred embodiment as well as other embodiments of the
25 disclosure will be apparent to those skilled in the art from the disclosure herein,
whereby it is to be distinctly understood that the foregoing descriptive matter is to
be interpreted merely as illustrative of the disclosure and not as a limitation.

WE CLAIM:
1. A dynamic control system (100) for preventing lifting and rolling over of a
vehicle (102), said system (100) comprising:
i. strain measuring circuits (104) configured to sense deformation of
front wheel components (106), and further configured to generate
deformation detection signals representative of said sensed
deformation;
ii. an inclination sensor (110) configured to detect angular
displacement of the front portion of the vehicle (102) with respect
to a horizontal plane, and further configured to generate an angle
detection signal representative of said detected inclination; and
iii. a control unit (112) configured to cooperate with said strain
measuring circuits (104) and said inclination sensor (110) to
receive said deformation detection signals and said angle detection
signal respectively, and further configured to generate a control
signal for controlling engine torque and an activating signal for
activating brake actuators of the vehicle (102) based on said
received deformation detection signals and angle detection signal
to prevent lifting and rolling over of the vehicle (102).
2. The system (100) as claimed in claim 1, wherein said front wheel
components (106) are kingpin tubes, wherein each of said strain measuring
circuits (104) is mounted on a kingpin tube associated with each front
wheel of the vehicle (102).
3. The system (100) as claimed in claim 1, wherein said inclination sensor
25 (110) is mounted on the front portion of the vehicle (102).
4. The system (100) as claimed in claim 1, wherein said inclination sensor
(110) is selected from a group consisting of a gyro sensor, a tilt sensor, and
an inclinometer.
5. The system (100) as claimed in claim 1, wherein said strain measuring
circuit (104) comprises at least one Wheatstone bridge, said Wheatstone
bridge having four legs of which one leg includes a strain gauge.
6. The system (100) as claimed in claim 1, wherein each of said front wheel
components (106) is mounted on a hollow front axle support shaft (114)
and connected to a front wheel (108) of the vehicle (102).
7. The system (100) as claimed in claim 1, wherein said system (100)
includes an accelerator pedal position sensor (202) configured to detect
pressing of the accelerator pedal of the vehicle (102).
8. The system (100) as claimed in claim 7, wherein said control unit (112)
comprises:
i. a signal conditioning unit (204) configured to receive said
deformation detection signals and said angle detection signal, and
further configured to generate values corresponding to said
received deformation detection and angle detection signals;
ii. a repository (206) configured to store a pre-determined threshold
deformation value and a pre-determined threshold rollover angle
value;
iii. a first comparator module (208) configured to cooperate with said
signal conditioning unit (204) to receive said deformation values
associated with front wheels (108) of the vehicle (102), and further
configured to cooperate with said repository (206) to generate a lift
detection signal when each of said deformation values become less
than or equal to said pre-determined threshold deformation value;
iv. a second comparator module (210) configured to cooperate with
said signal conditioning unit (204) to receive said angle value
associated with front portion of the vehicle (102), and further
configured to cooperate with said repository (206) to generate a
rollover detection signal when said angle value becomes greater
than said pre-determined threshold rollover angle value; and
v. a processor (212) configured to cooperate with said accelerator
pedal position sensor (202), said signal conditioning unit (204),
said first comparator module (208) and said second comparator
10 module (210), said processor (212) comprising:
• an anti-lifting module (214) configured to generate a first
control signal, upon receiving said lift detection signal, for
reducing engine torque until said deformation values
becomes greater than said pre-determined threshold
15 deformation value;
• an over-riding module (216) configured to generate a first
override signal for overriding said first control signal when
accelerator pedal of the vehicle (102) is detected to be
pressed for a pre-defined period of time;
20 • a first anti-rolling module (218) configured to generate a
second override signal upon receiving said rollover
detection signal to override said first override signal and
enable said anti-lifting module to reduce said engine torque;
and
• a second anti-rolling module (220) configured to generate a
warning alert signal for notifying an operator and said
activating signal for activating said brake actuators, when
said rollover detection signal is received without receiving
said lift detection signal.
9. The system (100) as claimed in claim 8, wherein said system (100)
includes an alerting device configured to be triggered upon receiving said
warning alert signal.
10. The system (100) as claimed in claim 9, wherein said alerting device is
selected from a group consisting of an indicator, a buzzer, an alarm, a bell,
and a user interface.
11. A dynamic control method (300) for preventing lifting and rolling over of
a vehicle (102), said method (300) comprising the following steps:
i. sensing, by strain measuring circuits (104), deformation of front
10 wheel components (106);
ii. generating, by said strain measuring circuits (104), a deformation
detection signal representative of said sensed deformation;
iii. detecting, by an inclination sensor (110), angular displacement of
front portion of the vehicle (102) with respect to a horizontal plane,
wherein the horizontal plane is the plane normal to the direction of
force of gravity;
iv. generating, by said inclination sensor (110), an angle detection
signal representative of said detected inclination;
v. receiving, by a control unit (112), said deformation detection
20 signals and said angle detection signal from said strain measuring
circuits (104) and said inclination sensor (110) respectively; and
vi. generating, by said control unit (112), a control signal for
controlling engine torque and an activating signal for activating
brake actuators of the vehicle (102) based on said received
25 deformation detection signals and angle detection signal.
12. The method (300) as claimed in claim 11, wherein said method (300)
includes detecting, by an accelerator pedal position sensor (202), pressing
of the accelerator pedal of the vehicle (102).
13. The method (300) as claimed in claim 12, wherein said step of generating,
by said control unit (112), said control signal and said activating signals
comprises:
i. receiving, by a signal conditioning unit (204), said deformation
5 detection signals and said angle detection signal;
ii. generating, by said signal conditioning unit (204), deformation and
angle values based on said received deformation detection signals
and said angle detection signal;
iii. storing, in a repository (206), a pre-determined threshold
deformation value and a pre-determined threshold rollover angle
value;
iv. receiving, by a first comparator module (208), said deformation
values associated with front wheels (108) of the vehicle (102);
v. generating, by said first comparator module (208), a lift detection
signal when each of said deformation values become less than or
equal to said pre-determined threshold deformation value;
vi. receiving, by a second comparator module (210), said angle value
associated with front portion of the vehicle (102) from said signal
conditioning unit (204);
vii. generating, by said second comparator module (210), a rollover
detection signal when said angle value becomes greater than said
pre-determined threshold rollover angle value;
viii. generating, by an anti-lifting module (214) of a processor (212), a
first control signal, upon receiving said lift detection signal, for
reducing engine torque until said deformation values becomes
greater than said pre-determined threshold deformation;
ix. generating, by an over-riding module (216) of said processor (212),
a first override signal for overriding said first control signal when
accelerator pedal position sensor of the vehicle (102) is detected to
be pressed for a pre-defined period of time;
x. generating, by a first anti-rolling module (218) of said processor
(212), a second override signal for overriding said first override
signal and enabling said anti-lifting module to reduce said engine
torque upon receiving said rollover detection signal; and
xi. generating, by a second anti-rolling module (220) of said processor
(212), a warning alert signal for notifying an operator and said
activating signal for activating said brake actuators, when said
rollover detection signal is received without receiving said lift
detection signal.