摘要:
The invention relates to a method and device for operating a motor vehicle with a speed and/or distance control device (141) the same as with an automatic transmission (131) in which, departing from an actual driving speed (C), a preset nominal driving speed (D) is autonomously regulated and in which the adaptation of the actual driving speed (C) to the nominal driving speed (D) is controlled by a ratio change of the automatic transmission (131). The ratio change control is effected on the basis of a virtual accelerator pedal value (J, J′, J″) derived from the real deviation of the accelerator pedal 915) by the driver, the definition of the virtual accelerator pedal value (J, J′, J″) being controlled by the divergence of the driving speed (C) from the nominal driving speed (D), by the vehicle longitudinal acceleration (E) and/or by the torque (B) of the vehicle prime mover.
摘要:
A method for operating a motor vehicle with a manual transmission, a multi-ratio automatic transmission or a continuously variable transmission, on a road with a low friction coefficient, the engine torque is reduced or, as the case may be, decreased, which leads to a reduction of the wheel drive torque without changing the starting gear ratio.
摘要:
An acceleration mode recommended for a vehicle with a continuously variable transmission, within the scope of which, after the shift takes place, the engine speed progress will continue as a function of the speed with a calibrated rotational speed gradient (H), the rotational speed gradient is greater in the acceleration mode than the rotational speed gradient within the scope of a standard driving strategy.
摘要:
Within the framework of the method for recognizing a downhill descent and for operating the transmission of a motor vehicle in a downhill descent mode during a downhill descent for a motor vehicle that has a continuously variable transmission (CVT), an automatic transmission or an automated manual shift transmission a downhill descent is recognized if in coasting operation there is an increase in speed, whereby in the downhill descent mode, a downhill descent signal indicating a downhill descent is formed in coasting operation and is used by the driving strategy unit for calculating a target gear ratio for the transmission control unit.
摘要:
A method for adjusting a ratio of a continuously variable automatic transmission where a nominal ratio is determined according to an accelerator pedal signal value. The nominal ratio is determined according to a modified accelerator pedal signal. When the periodic curve of the accelerator pedal signal has a relative extreme value to the modified accelerator pedal signal, a starting value is assigned which is equal to this extreme value. Until the value of the modified accelerator pedal signal is again equal to the value of the unmodified accelerator pedal signal, the value of the modified accelerator pedal signal is determined by a transfer function.
摘要:
A method for adjusting a ratio of a continuously variable automatic transmission where a nominal ratio is determined according to an accelerator pedal signal value. The nominal ratio is determined according to a modified accelerator pedal signal. When the periodic curve of the accelerator pedal signal has a relative extreme value to the modified accelerator pedal signal, a starting value is assigned which is equal to this extreme value. Until the value of the modified accelerator pedal signal is again equal to the value of the unmodified accelerator pedal signal, the value of the modified accelerator pedal signal is determined by a transfer function.
摘要:
Within the framework of the method for the prevention of a decreasing rotary speed of a motor by the closing of a converter clutch during a constant gas pedal positioning in a continuously automatic transmission with a variator and a hydrodynamic converter, a decreasing motor speed of rotation is avoided by an increase of the speed of rotation of the primary disk of the variator (turbine).