Patent classifications
F16H59/0204
Shift lever assembly with position sensing
In at least some implementations, a vehicle shift lever assembly includes a shift lever movable about a first pivot axis within a first shift path having multiple shift positions, and movable about a second pivot axis to a second shift path having at least one shift position, and the second pivot axis is not parallel to the first pivot axis, and a sensor element coupled to the shift lever for movement with the shift lever. The sensor element is oriented in a different position when the shift lever is in each of the shift positions in the first shift path and each of the shift positions of the second shift path.
Hydraulic control unit of vehicle drive system
A hydraulic control unit of a vehicle drive system including an automatic transmission, and an oil pump device, includes: a first electromagnetic valve; a second electromagnetic valve; first and second oil passages; a third oil passage; a manual valve operated to connect and disconnect the first and third oil passages and a drain oil passage to and from each other, in response to an operation of a manually operated shifting device by a vehicle operator, such that the first oil passage is connected to the third oil passage when the shifting device is placed in a first operating position, while the first oil passage is connected to the drain oil passage when the shifting device is placed in a second operating position; an accumulator connected to the first oil passage; and a check valve provided in the second oil passage.
SYSTEM, METHOD, AND APPARATUS FOR MANAGING TRANSMISSION SHUTDOWN OPERATIONS
A transmission includes an input shaft that couples to a prime mover, twin countershafts and a main shaft having gears coupled thereon, an output shaft that selectively provides a torque output to a driveline, a first shift actuator that selectively couples the input shaft to the main shaft. The transmission includes a second shift actuator that couples the main shaft to the output shaft with a selected reduction ratio, and a controller including a vehicle state circuit that interprets at least one vehicle operating condition, and a neutral enforcement circuit that provides a first neutral command to the first shift actuator and a second neutral command to the second shift actuator, in response to the at least one vehicle operating condition indicating that vehicle motion is not intended.
Motor vehicle having a control element for selecting a vehicle operating mode from a plurality of defined vehicle operating modes
A motor vehicle has a control element for selecting a vehicle operating mode from a plurality of defined vehicle operating modes. Furthermore, the motor vehicle has at least one drive motor and an electronically controllable, automated transmission, which is operable in at least one automatic program and in at least one manual program. The motor vehicle also has an electric control arrangement and at least one button for triggering a changeover from an automatic program to a manual program. The electronic control arrangement is configured such that, upon activation of the button for triggering a manual program for a predefined minimum duration by the driver, an operating mode, which is not selectable via the control element based on dynamics, independent of the activation of the control element, is automatically activatable and displayable on the display instead of a selectable operating mode.
SHIFT APPARATUS
To provide such a shift apparatus that, even if, at the time of electrically applying a reaction force to a rotation operation of a shift apparatus, an abnormality occurs in a control device that provides an instruction to apply this reaction force, it is not enabled to switch to a range the operation of which is originally restricted. In a case where an abnormality occurs in reaction force application instruction means, reaction force application control means applies a reaction force against a rotation operation in a direction opposite to a parking range relative to a current range. Thereby, it is possible to reduce the possibility that a vehicle travels with an instruction to apply reaction force remaining in an abnormal state.
System, method, and apparatus for operating a high efficiency, high output transmission
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. A controller controls the shift actuator utilizing an actuating pulse and an opposing pulse.
Gear position measuring device for sequential transmission
The gear position measuring device includes a switch, an output unit, a processor, and a storage. The switch includes multiple individual contacts respectively corresponding to the multiple gear positions. The multiple individual contacts are separated into multiple gear position groups that include at least two of the multiple individual contacts. The output unit includes circuits so that the individual contacts for the gear positions of each of the multiple gear position groups are connected to the same circuit, thereby being able to output from the circuits that are different for each of the multiple gear position groups. When an output value from the output unit is changed, the processor determines a current gear position on the basis of the gear position stored in the storage and the multiple gear positions corresponding to the output value from the output unit.
System, method, and apparatus for managing transmission shutdown operations
A transmission includes an input shaft that couples to a prime mover, twin countershafts and a main shaft having gears coupled thereon, an output shaft that selectively provides a torque output to a driveline, a first shift actuator that selectively couples the input shaft to the main shaft. The transmission includes a second shift actuator that couples the main shaft to the output shaft with a selected reduction ratio, and a controller including a vehicle state circuit that interprets at least one vehicle operating condition, and a neutral enforcement circuit that provides a first neutral command to the first shift actuator and a second neutral command to the second shift actuator, in response to the at least one vehicle operating condition indicating that vehicle motion is not intended.
SYSTEM, METHOD, AND APPARATUS FOR OPERATING A HIGH EFFICIENCY, HIGH OUTPUT TRANSMISSION
A transmission includes an input shaft and an output shaft, the input shaft selectively accepting a torque input from a prime mover, and the output shaft selectively providing torque output to a driveline. A controller determines a shaft displacement angle representing an angle value of rotational displacement difference between at least two shafts of the transmission, and performs a transmission operation responsive to the shaft displacement angle.
High efficiency, high output transmission
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.