| 摘要 |
The invention relates to a vehicle transmission in a vehicle which comprises at least one prime mover, e.g., an internal combustion engine and/or an electric motor. The transmission comprises a first transmission mechanism arranged to transmit mechanical driving power from an output shaft (20; 30; 40) of the prime mover to a first input shaft (25; 31; 41) and to put any one of a first set of gears in an engaged state to drivingly connect the first input shaft (25; 31; 41) to the driving wheels; and a second transmission mechanism arranged to transmit mechanical driving power from the output shaft (20; 30; 40) of the prime mover to a second input shaft (26; 32; 42) and to put any one of a second set of gears in an engaged state to drivingly connect the second input shaft (26; 32; 42) to the driving wheels. Controllable first and second clutch unit (22; C2)s are arranged to bring the output shaft (20; 30; 40) of the prime mover and the first and the input shaft, respectively, into engagement with each other. A lubrication pump (36; 46) is drivingly connected to the first input shaft (25; 31; 41) to lubricate the transmission and an electronic control unit (15) is arranged to determine a lubricated state of the transmission and the operational state of the lubrication pump (36; 46). When the first clutch unit (21; C1) is engaged to connect the output shaft (20; 30; 40) of the prime mover to the first input shaft (25; 31; 41), the lubrication pump (36; 46) is driven by the first input shaft (25; 31; 41). When the second clutch unit (22; C2) is engaged to connect the output shaft (20; 30; 40) of the prime mover to the second input shaft (26; 32; 42), the lubrication pump (36; 46) is arranged to be driven by the first input shaft (25; 31; 41) by at least partly engaging the first clutch unit (21; C1). |
