Measurement device of position of center of gravity of vehicle to be measured on truck scale and truck scale
First Claim
Patent Images
1. An apparatus for determining the center of gravity of a vehicle to be measured being applied to a truck scale including load cells (13A-13D) provided individually at around four corners of a measuring table (10) below a bottom surface thereof, the measuring table (10) being provided with a flat surface (11) having a surface area on which all wheels (51A-51D) of a vehicle (5) to be measured can be simultaneously placed and a front wheel platform (12) located at a position in a frontal part of the flat surface (11) and raised to a specific height, the truck scale being configured to be able to measure the weight of the vehicle (5) to be measured by a central processing unit (3) on the basis of measurement values fed from the individual load cells (13A-13D) when the vehicle (5) to be measured is placed on the measuring table (10),the apparatus comprisinga wheel position detector (8) for detecting a front wheel position and a rear wheel position of the vehicle (5) to be measured that is placed on the measuring table (10);
- longitudinal displacement calculation means (20) for calculating how much the vehicle (5) to be measured is displaced frontward or rearward from a reference position along a front/rear direction on the basis of information on the wheel positions detected by the wheel position detector (8) under conditions where the vehicle (5) to be measured is placed on the measuring table (10);
longitudinal center-of-gravity position calculation means (24) for acquiring a front axle load and a rear axle load of the vehicle (5) to be measured and calculating a position where the center of gravity (G or G′
) of the vehicle is located along the front/rear direction thereof on the basis of the front axle load, the rear axle load and the amount of longitudinal displacement calculated by the longitudinal displacement calculation means (20);
storage means (32) for storing information on the center of gravity along the front/rear direction calculated by the longitudinal center-of-gravity position calculation means (24);
longitudinal center-of-gravity displacement calculation means (25) for calculating the amount of displacement (T) of the center of gravity along the front/rear direction by comparing information on the center of gravity along the front/rear direction newly calculated by the longitudinal center-of-gravity position calculation means (24) under conditions where front wheels (51A, 51B) of the vehicle (5) to be measured ride on the front wheel platform (12) and the information on the center of gravity on the flat surface (11) stored in the storage means (32); and
vehicle center-of-gravity height calculation means (26) for acquiring a longitudinal inclination angle (θ
) of the vehicle (5) to be measured under conditions where the front wheels (51A, 51B) of the vehicle (5) to be measured ride on the front wheel platform (12) and calculating the height (G1) of the center of gravity of the vehicle (5) to be measured on the basis of the amount of displacement (T) of the center of gravity along the front/rear direction calculated by the longitudinal center-of-gravity displacement calculation means (25) and the longitudinal inclination angle (θ
).
1 Assignment
0 Petitions
Accused Products
Abstract
As a measurement table (10), an object provided with a flat surface (11) having an area on which all wheels of a vehicle can be mounted at the same time and a front wheel mounting table (12) which is disposed in front of the flat surface (11) and is lifted by a step of a predetermined height is used, a wheel position detector (8) which is capable of detecting a front wheel position and a rear wheel position of a vehicle to be measured is provided, a computation processing device (3) is provided with anterior-posterior displacement calculation means, an inter-axle distance calculation means (21), a vehicle inclination calculation means (22), a front wheel axle load calculation means (23A), a rear wheel axle load calculation means (23B), an anterior-posterior gravity center position calculation means (24), a storage means (32), an anterior-posterior gravity center displacement calculation means (25), and a vehicle gravity center height position calculation means (26), and from a gravity center displacement which is calculated from anterior-posterior gravity center position information calculated on the flat surface (11) and anterior-posterior gravity center position information in the state in which front wheels are mounted on the front wheel mounting table (12) and a vehicle inclination which is calculated by the vehicle inclination calculation means (22), the position of the height of the center of gravity of the vehicle to be measured is calculated.
9 Citations
13 Claims
-
1. An apparatus for determining the center of gravity of a vehicle to be measured being applied to a truck scale including load cells (13A-13D) provided individually at around four corners of a measuring table (10) below a bottom surface thereof, the measuring table (10) being provided with a flat surface (11) having a surface area on which all wheels (51A-51D) of a vehicle (5) to be measured can be simultaneously placed and a front wheel platform (12) located at a position in a frontal part of the flat surface (11) and raised to a specific height, the truck scale being configured to be able to measure the weight of the vehicle (5) to be measured by a central processing unit (3) on the basis of measurement values fed from the individual load cells (13A-13D) when the vehicle (5) to be measured is placed on the measuring table (10),
the apparatus comprising a wheel position detector (8) for detecting a front wheel position and a rear wheel position of the vehicle (5) to be measured that is placed on the measuring table (10); -
longitudinal displacement calculation means (20) for calculating how much the vehicle (5) to be measured is displaced frontward or rearward from a reference position along a front/rear direction on the basis of information on the wheel positions detected by the wheel position detector (8) under conditions where the vehicle (5) to be measured is placed on the measuring table (10); longitudinal center-of-gravity position calculation means (24) for acquiring a front axle load and a rear axle load of the vehicle (5) to be measured and calculating a position where the center of gravity (G or G′
) of the vehicle is located along the front/rear direction thereof on the basis of the front axle load, the rear axle load and the amount of longitudinal displacement calculated by the longitudinal displacement calculation means (20);storage means (32) for storing information on the center of gravity along the front/rear direction calculated by the longitudinal center-of-gravity position calculation means (24); longitudinal center-of-gravity displacement calculation means (25) for calculating the amount of displacement (T) of the center of gravity along the front/rear direction by comparing information on the center of gravity along the front/rear direction newly calculated by the longitudinal center-of-gravity position calculation means (24) under conditions where front wheels (51A, 51B) of the vehicle (5) to be measured ride on the front wheel platform (12) and the information on the center of gravity on the flat surface (11) stored in the storage means (32); and vehicle center-of-gravity height calculation means (26) for acquiring a longitudinal inclination angle (θ
) of the vehicle (5) to be measured under conditions where the front wheels (51A, 51B) of the vehicle (5) to be measured ride on the front wheel platform (12) and calculating the height (G1) of the center of gravity of the vehicle (5) to be measured on the basis of the amount of displacement (T) of the center of gravity along the front/rear direction calculated by the longitudinal center-of-gravity displacement calculation means (25) and the longitudinal inclination angle (θ
). - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A truck scale including load cells (13A-13D) provided individually at around four corners of a measuring table (10) below a bottom surface thereof, the measuring table (10) being provided with a flat surface (11) having a surface area on which all wheels (51A-51D) of a vehicle (5) to be measured can be simultaneously placed and a front wheel platform (12) located, at a position in a frontal part of the flat surface (11) and raised to a specific height, the truck scale being configured to be able to measure the weight of the vehicle (5) to be measured by a central processing unit (3) on the basis of measurement values fed from the individual load cells (13A-13D) when the vehicle (5) to be measured is placed on the measuring table (10),
the truck scale comprising: -
a wheel position detector (8) for or detecting a front wheel position and a rear wheel position of the vehicle (5) to be measured that is placed on the measuring table (10) longitudinal displacement calculation means (20) for calculating how much the vehicle (5) to be measured is displaced frontward or rearward from a reference position along a front/rear direction on the basis of information on the wheel positions detected by the wheel position detector (8) under conditions where the vehicle (5) to be measured is placed on the measuring table (10); longitudinal center-of-gravity position calculation means (24) for acquiring a front axle load and a rear axle load of the vehicle (5) to be measured and calculating a position where the center of gravity (G or G′
) of the vehicle is located along the front/rear direction thereof on the basis of the front axle load, the rear axle load and the amount of longitudinal displacement calculated by the longitudinal displacement calculation means (20);storage means (32) for storing information on the center of gravity along the front/rear direction calculated by the longitudinal center-of-gravity position calculation means (24); longitudinal center-of-gravity displacement calculation means (25) for calculating the amount of displacement (T) of the center of gravity along the front/rear direction by comparing information on the center of gravity along the front/rear direction newly calculated by the longitudinal center-of-gravity position calculation means (24) under conditions where front wheels (51A, 51B) of the vehicle (5) to be measured ride on the front wheel platform (12) and the information on the center of gravity on the flat surface (11) stored in the storage means (32); and vehicle center-of-gravity height calculation means (26) for acquiring a longitudinal inclination angle (θ
) of the vehicle (5) to be measured under conditions where the front wheels (51A, 51B) of the vehicle (5) to be measured ride on the front wheel platform (12) and calculating the height (G1) of the center of gravity of the vehicle (5) to be measured on the basis of the amount of displacement (T) of the center of gravity along the front/rear direction calculated by the longitudinal center-of-gravity displacement calculation means (25) and the longitudinal inclination angle (θ
).
-
-
9. An apparatus for determining the center of gravity of a vehicle to be measured being applied to a truck scale including load cells (13A-13D) provided individually at around four corners of a measuring table (10) below a bottom surface thereof, the truck scale being configured to be able to measure the weight of the vehicle (5) to be measured by a central processing unit (3) on the basis of measurement values fed from the individual load cells (13A-13D) when the vehicle (5) to be measured is placed on the measuring table (10),
the apparatus comprising: -
a vehicle position detector (108) for detecting a specified position of the vehicle (5) to be measured that is placed on the measuring table (10); lateral displacement calculation means (270 for calculating how much a center line (Q) of the vehicle (5) to be measured is displaced along a left/right direction with respect to a central extension line (P) passing between a pair of left and right load cells (13A and 13B, 13C and 13D) on the basis of detection by the vehicle position detector (108); left-wheel group wheel load calculation means (28A) and right-wheel group wheel load calculation means (28B) for calculating total loads (LW, RW) of left- and right-side wheel groups (51A and 51C, 51B and 51D) of the vehicle (5) to be measured, respectively, on the basis of measurement values (Wa-Wd) fed from the individual load cells (13A-13D) when the vehicle (5) to be measured is placed on the measuring table (10); and lateral center-of-gravity position calculation means (29) for calculating the position where the center of gravity (G) of the vehicle is located along the left/right direction thereof from the total loads (LW, RW) of the left and right wheels calculated by the left-wheel group wheel load calculation means (28A) and the right-wheel group wheel load calculation means (28B), respectively, and the amount of displacement (S) along the left/right direction calculated by the lateral displacement calculation means (27). - View Dependent Claims (10, 11, 12)
-
-
13. A truck scale including load cells (13A-13D) provided individually at around four corners of a measuring table (10) below a bottom surface thereof, the truck scale being configured to be able to measure the weight of the vehicle (5) to be measured by a central processing unit (3) on the basis of measurement values fed from the individual load cells (13A-13D) when the vehicle (5) to be measured is placed on the measuring table (10),
the truck scale comprising: -
a vehicle position detector (108) for detecting a specified position of the vehicle (5) to be measured that is placed on the measuring table (10); lateral displacement calculation means (27) for calculating how much a center line (Q) of the vehicle (5) to be measured is displaced along a left/right direction with respect to a central extension line (P) passing between a pair of left and right load cells (13A and 13B, 13C and 13D) on the basis of detection by the vehicle position detector (108); left-wheel group wheel load calculation means (28A) and right-wheel group wheel load calculation means (28B) for calculating total loads (LW, RW) of left- and right-side wheel groups (51A and 51C, 51B and 51D) of the vehicle (5) to be measured, respectively, on the basis of measurement values (Wa-Wd) fed from the individual load cells (13A-13D) when the vehicle (5) to be measured is placed on the measuring table (10); and lateral center-of-gravity position calculation means (29) for calculating the position where the center of gravity (G) of the vehicle is located along the left/right direction thereof from the total loads (LW, RW) of the left and right wheels calculated by the left-wheel group wheel load calculation means (28A) and the right-wheel group wheel load calculation means (28B), respectively, and the amount of displacement (S) along the left/right direction calculated by the lateral displacement calculation means (27).
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeKamacho Scale Co., Ltd.
-
Original AssigneeKamacho Scale Co., Ltd.
-
InventorsKamada, Takeaki, Tamura, Takashi
-
Primary Examiner(s)Caputo, Lisa
-
Assistant Examiner(s)WILLIAMS, JAMEL E
-
Application NumberUS13/702,916Publication NumberTime in Patent Office1,314 DaysField of Search73/650.1, 701/124US Class Current73/65.01CPC Class CodesB60P 1/045 Levelling or stabilising sy...G01G 19/02 for weighing wheeled or rol...G01G 19/021 having electrical weight-se...G01M 1/122 Determining position of cen...G01M 17/007 Wheeled or endless-tracked ...
