Patent ID: 8666623
Filing Date: 2014-03-04
Classification: B60W,F16H

Abstract:
1. A method of managing an automatic transmission of a vehicle with a transmission controller depending on a driving route incline, the method comprising the steps of: detecting a winding mountain pass road with the transmission controller, depending on a topography of the driving route, determining, via the transmission controller, a point in time for either setting or resetting the winding mountain pass road detection; either setting or resetting the winding mountain pass road detection, via the transmission controller, based on parameters, the parameters being defined as at least one of a driving resistance (f_fw) of the vehicle and a pitch angle (alpha) of the driving route; defining, via the transmission controller, a first limit value (f_fw_passf_on, alpha_hang_passf_on) and a distinct second limit value (f_fw_passf_off, alpha_hang_passf_off) of the parameters, the first limit value being greater than the distinct second limit value; starting, via the transmission controller, a first time counter (t_passf_zz) when a current value of the parameters rises above the first limit value (f_fw_passf_on, alpha_hang_passf_on), and freezing the first time counter (t_passf_zz) when the current value of the parameters drops below the distinct second limit value (f_fw_passf_off, alpha_hang_passf_off); setting or resetting the winding mountain pass road detection further depending on a duration of time the vehicle is on one of an uphill grade and a downhill grade; relating the pitch angle of the driving route to a value on a slope characteristic line; either determining an associated increment or decrement value from values of a setting characteristic line when the winding mountain pass road detection is currently reset or determining the associated increment or decrement value from values of a resetting characteristic line when the winding mountain pass road detection is currently set, the values of the setting characteristic line decreasing as the pitch angle of the driving route increases and the values of the resetting characteristic line increasing as the pitch angle of the driving route increases; and managing, via the transmission controller, the automatic transmission based on whether the winding mountain pass road detection is set or reset.