Methods for avoiding bucking oscillations during acceleration of vehicles
AssigneeDaimlerChrysler AG
InventorsRoland Flinspach, Andreas Haller, Franz Moser, Günter Rink
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AssigneeDaimlerChrysler AG
InventorsRoland Flinspach, Andreas Haller, Franz Moser, Günter Rink
Estimating the term…
In a method to avoid bucking oscillations during acceleration of vehicles the throttle valve position is influenced, in which, for conversion of engine torque trend between the lower torque initial value and an upper torque target value, the trend of the throttle valve position is changed between an initial closed position corresponding to the torque initial value and a target opening position corresponding to the torque target value. To prevent bucking oscillations reliably without adversely affecting the acceleration behavior and exhaust behavior, the trend of the throttle valve position adjacent to the initial closed position has a local maximum that opens the throttle valve and a local minimum that closes the throttle valve between the local maximum and the target opening position.
A method of avoiding bucking oscillations during acceleration of a vehicle by influencing a position of a throttle valve of the vehicle as engine torque trends between a lower initial torque value and an upper target torque value by changing the position of the throttle valve between an initial closed position corresponding to the initial torque value and a target opening position corresponding to the target torque value wherein a trend of the throttle valve position has a local maximum that opens the throttle valve adjacent to the initial closed position and a local minimum that closes the throttle valve between a local maximum and the target opening position, setting the position of the throttle valve with an electrically actuated control element, controlling the trend of the throttle valve position by a current function that actuates the electrically actuated control element, the current function controlling the trend of the throttle valve position so that it rises to the local maximum from the initial closed position, then drops to the local minimum, and finally rises to the target opening position.
Dependencies are inferred from the claim text.