| 摘要 |
The invention relates to a process for starting a vehicle with repeated forward-reverse run, in course of which in the drive-chain of the vehicle an automatic transmission /2/ is driven with an internal combustion motor /1/ through the incorporated hydrodynamic torque converter /16/ or in a given case with a dry friction clutch /15/ shortcircuiting it, either directly with the automatic transmission /2/ and/or the cardan shaft /3/, thereafter, by the aid of at least one differential gear /4/ and the half-axes connected thereto at least one pair of wheels /6/ is put into a rotary motion, while gear-change of the automatic transmission /included the function of the dry friction clutch /15// are carried out with an auxiliary energy having been controlled with electromagnetic valves /7/, furtheron fuel supply to the motor /1/ is controlled by means of a throttle pedal; the process can be characterized in that from the angular velocity-being proportional with the velocity of the vehicle being 3 km/h at most, practically zero-of the part of the drive-chain beginning with the output shaft of the automatic transmission /2/ and ending with the wheels /6/, i.e. a structural part or a pair of structural parts an electric signal is formed by means of a signal transmitter /12/ measuring angular velocity, furtheron, from the number of revolutions of the crankshaft of the motor /1/ or any other component rotating therewith with a number of revolutions being proportional, or from the number of revolutions of the drive-in shaft of the gear-part of the transmission /2/ at the number of revolutions of the basic run another electric signal is formed by means of a signal transmitter /9/ measuring angular velocity; from the normal position of the throttle pedal /10/ a further electric signal is formed by the aid of a signal transmitter /11/ indicating the position of the throttle pedal /10/, at last, by means of a switch staying at disposal of the driver a command signal is given for the start with repeated forward-reverse run and in case of the simultaneous presence of said signals, by displacing the throttle pedal and allowing it to return into its basic position we give a command signal to the electromagnetic valves /7/ shifting alternatively to the bottom gear and the reverse gear, respectively. |
