Provided are a seven-speed double clutch transmission and a vehicle. The seven-speed double clutch transmission includes: an outer input shaft and an inner input shaft, a 4/6-speed driving gear and a 2-speed driving gear are sequentially fixed on the outer input shaft, and a 1-speed driving gear, a 3-speed driving gear and a 5/7-speed driving gear are sequentially fixed on the inner input shaft; a first output shaft and a second output shaft, a 4-speed driven gear, a 2-speed driven gear, a 1-speed driven gear and a 5-speed driven gear, are sequentially fixed on the first output shaft, and a 6-speed driven gear, a reverse gear, a reverse gear synchronizer, a 3-speed driven gear and a 7-speed driven gear are sequentially fixed on the second output shaft.

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.

Provided are a seven-speed double clutch transmission and a vehicle. The seven-speed double clutch transmission includes: an outer input shaft and an inner input shaft, a 4/6-speed driving gear and a 2-speed driving gear are sequentially fixed on the outer input shaft, and a 1-speed driving gear, a 3-speed driving gear and a 5/7-speed driving gear are sequentially fixed on the inner input shaft; and a first output shaft and a second output shaft, a 4-speed driven gear, a 2-speed driven gear, a 1-speed driven gear and a 5-speed driven gear, are sequentially fixed on the first output shaft, and a 6-speed driven gear, a reverse gear, a reverse gear synchronizer, a 3-speed driven gear and a 7-speed driven gear are sequentially fixed on the second output shaft.

A lubricating device for lubricating components includes first and second lubricant guide plates which have respective inclination angles with respect to a horizontal line such that the angle of inclination of the first lubricant guide plate is smaller than that of the second lubricant guide plate. The inclination angle of the first lubricant guide plate is determined to permit the lubricant oil guided by the first lubricant guide plate to be directed into the catcher reservoir, and to inhibit the lubricant oil from being supplied to component or components disposed above the gear, and the inclination angle of the second lubricant guide plate is determined to permit the lubricant oil guided by the second lubricant guide plate to be supplied to the component or components disposed above the gear.

Systems are provided for a gear set housing. In one example, a system comprises a gear box housing configured to house a four stage gear set in combination with a shift actuator and a differential lock, wherein the four stage gear set comprises an input shaft, a first layshaft, a second layshaft, and an output shaft.

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.

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.

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. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. A shift control circuit operates a shift actuator using a first opposing pulse command and a first actuating pulse command, and releases pressure with shift actuating and opposing volumes of the shift actuator upon determining a shift completion event.

An exemplary passive oil system includes a reservoir housing configured in operation to rotate around a rotational axis, the reservoir housing defining a reservoir between a top wall, a bottom wall, innermost side, and an outer sidewall; and an outlet positioned adjacent the outer sidewall to discharge a lubrication fluid contained in the reservoir in response to the reservoir housing rotating around the rotational axis.

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.