| 摘要 |
PCT No. PCT/EP90/01106 Sec. 371 Date Dec. 19, 1991 Sec. 102(e) Date Dec. 19, 1991 PCT Filed Jul. 7, 1990 PCT Pub. No. WO91/01461 PCT Pub. Date Feb. 7, 1991.An arrangement and process for operating a continuously variable drive unit of a motor vehicle having an apparatus for control of the operation of the clutches (25, 26) in the mechanical transmission branch (19). Sensors (7, 9, 45) transmit the speed of the mechanical transmission branch (19), the hydrostatic transmission branch (17) and the transmission output shaft (10) to an electronic control device (3). The clutches (25, 26) are disconnected in the case of inadmissible speed ratios. |
