Torque detector
First Claim
1. A torque detector for detecting torque of a driving shaft of an internal combustion engine when the driving shaft is connected to a load, comprising:
- (1) a first rotating body which is coaxially and integrally connected to the driving shaft;
said first rotating body having a substantially circular plate-shape and including a boss which projects therefrom;
(2) a second rotating body, connected to the load, and arranged around said first rotating body so as to be coaxial therewith;
said second rotating body having an annular plate-shape and being disposed around said boss so as to be coaxial therewith, in the vicinity of and substantially parallel with said first rotating body;
(3) an elastic member for connecting said first rotating body to said second rotating body in the radial direction, said elastic member including a plurality of elastic plates which are radially disposed between said boss of said first rotating body and said second rotating body, said elastic plates being deformed in accordance with the load applied to said second rotating body when said first rotating body is rotated;
the ends of each of said elastic plates being connected to said boss of said first rotating body and said second rotating body respectively;
(4) angular phase difference detecting means for detecting an angular phase difference between said first rotating body and said second rotating body which occurs due to the deformation of said elastic member; and
(5) torque computing means for calculating torque from said angular phase difference.
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Accused Products
Abstract
A torque detector for detecting a torque applied to a torque transmission shaft which is connected to a load such as a wheel of an automobile. A first rotating body is connected to one end of a driving shaft of an engine coaxially, and an annular second rotating body is disposed around a boss which projects from the center of the first rotating body so as to be coaxial and parallel with the first rotating body. An elastic member connects the inner peripheral portion of the second rotating body to the boss in the radial direction. The angular phase difference between the first and the second rotating bodies which occurs due to the deformation of the elastic member is detected, and torque is calculated from the obtained angular phase difference.
33 Citations
13 Claims
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1. A torque detector for detecting torque of a driving shaft of an internal combustion engine when the driving shaft is connected to a load, comprising:
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(1) a first rotating body which is coaxially and integrally connected to the driving shaft; said first rotating body having a substantially circular plate-shape and including a boss which projects therefrom; (2) a second rotating body, connected to the load, and arranged around said first rotating body so as to be coaxial therewith; said second rotating body having an annular plate-shape and being disposed around said boss so as to be coaxial therewith, in the vicinity of and substantially parallel with said first rotating body; (3) an elastic member for connecting said first rotating body to said second rotating body in the radial direction, said elastic member including a plurality of elastic plates which are radially disposed between said boss of said first rotating body and said second rotating body, said elastic plates being deformed in accordance with the load applied to said second rotating body when said first rotating body is rotated; the ends of each of said elastic plates being connected to said boss of said first rotating body and said second rotating body respectively; (4) angular phase difference detecting means for detecting an angular phase difference between said first rotating body and said second rotating body which occurs due to the deformation of said elastic member; and (5) torque computing means for calculating torque from said angular phase difference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification