High efficiency, high output transmission
First Claim
1. A transmission, comprising:
- an input shaft configured to couple to a prime mover;
a countershaft having a first plurality of gears mounted thereon;
a main shaft having a second plurality of gears mounted thereon;
an output shaft selectively providing a torque output to a driveline;
a shift actuator structured to selectively couple the input shaft to the main shaft by rotatably coupling at least one of the first plurality of gears to the countershaft and the second plurality of gears to the main shaft, wherein the shift actuator is mounted on an exterior wall of a housing, and wherein the countershaft and the main shaft are at least partially positioned within the housing;
an integrated actuator housing, wherein the shift actuator is operationally coupled to the integrated actuator housing, and wherein the integrated actuator housing comprises a single external power access for the shift actuator;
a controller comprising;
a shaft displacement circuit structured to interpret a shaft displacement angle, the shaft displacement angle comprising an angle value representative of a rotational displacement difference between at least two shafts of the transmission;
a torque state description circuit structured to determine, in response to the shaft displacement angle, that the transmission is in one of;
a zero torque region;
or an imminent zero torque region; and
a displacement response circuit structured to perform a transmission operation in response to at least one of;
the shaft displacement angle, the zero torque region, or the imminent zero torque region.
4 Assignments
0 Petitions
Accused Products
Abstract
A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. An integrated actuator housing includes a single external power access for the shift actuator. A controller interprets a shaft displacement angle, determines if the transmission is in an imminent zero or zero torque region, and performs a transmission operation in response to the transmission in the imminent zero or zero torque region.
48 Citations
66 Claims
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1. A transmission, comprising:
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an input shaft configured to couple to a prime mover; a countershaft having a first plurality of gears mounted thereon; a main shaft having a second plurality of gears mounted thereon; an output shaft selectively providing a torque output to a driveline; a shift actuator structured to selectively couple the input shaft to the main shaft by rotatably coupling at least one of the first plurality of gears to the countershaft and the second plurality of gears to the main shaft, wherein the shift actuator is mounted on an exterior wall of a housing, and wherein the countershaft and the main shaft are at least partially positioned within the housing; an integrated actuator housing, wherein the shift actuator is operationally coupled to the integrated actuator housing, and wherein the integrated actuator housing comprises a single external power access for the shift actuator; a controller comprising; a shaft displacement circuit structured to interpret a shaft displacement angle, the shaft displacement angle comprising an angle value representative of a rotational displacement difference between at least two shafts of the transmission; a torque state description circuit structured to determine, in response to the shaft displacement angle, that the transmission is in one of;
a zero torque region;
or an imminent zero torque region; anda displacement response circuit structured to perform a transmission operation in response to at least one of;
the shaft displacement angle, the zero torque region, or the imminent zero torque region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A transmission, comprising:
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an input shaft configured to couple to a prime mover; a countershaft having a first plurality of gears mounted thereon; a main shaft having a second plurality of gears mounted thereon; an integrated actuator housing mounted on an exterior wall of a housing, and wherein the countershaft and the main shaft are at least partially positioned within the housing; a shift actuator structured to selectively couple the input shaft to the main shaft by rotatably coupling at least one of the first plurality of gears to the countershaft and the second plurality of gears to the main shaft, and wherein the shift actuator is operationally coupled to the integrated actuator housing, and wherein the shift actuator is accessible by removing the integrated actuator housing; a controller comprising; a shaft displacement circuit structured to interpret a shaft displacement angle, the shaft displacement angle comprising an angle value representative of a rotational displacement difference between at least two shafts of the transmission, and wherein the shaft displacement angle comprises at least one angle selected from the angles consisting of; an input angle comprising an angle value representative of a rotational displacement difference between the input shaft and the countershaft; a main box angle comprising a rotational displacement difference between the countershaft and an output shaft; and an output angle comprising a rotational displacement difference between the input shaft and the output shaft; and a torque input determination circuit structured to determine a prime mover torque value in response to the shaft displacement angle; and a displacement response circuit structured to provide, in response to the prime mover torque value. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
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Specification