Method for control and/or regulation of a motor vehicle automatic transmission according to driving route slope
First Claim
Patent Images
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.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for controlling and/or regulating an automatic transmission of a vehicle, depending on the driving route slope in which a winding mountain pass road detection is carried out, depending upon a topography of the driving route, in such a way that a time for either setting or resetting winding mountain pass road detection is determined.
15 Citations
27 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A method of performing one of an open-loop and closed-loop control of an automatic transmission of a vehicle with a transmission controller on the basis of the angle of inclination of a route, wherein a route-detection process is carried out on the basis of the topography of the route in such a way that a time for setting or resetting a detecting element for detecting a journey through a pass is determined, and the setting or the resetting of the detecting element for detecting a journey through a pass is determined on the basis of at least one of a travel resistance (f_fw) of the vehicle and an angle of gradient (alpha) of the route, the method comprising the steps of:
-
in order to detect a journey through a pass, defining, via the transmission controller, first and second limiting values for each of the travel resistance (f_fw) and the angle of gradient (alpha), the first limiting value of the travel resistance being greater than the second limiting value of the travel resistance, and the first limiting value of the angle of gradient being greater than the second limiting value of the angle of gradient, if at least one of a current value of the travel resistance (f_fw) rises above the first limiting value of the travel resistance and a current value of the angle of gradient (alpha) rises above the first limiting value of the angle of gradient, activating, via the transmission controller, a first counter (t_pass_zz) to start counting, beginning at a starting value, adjusting, via the transmission controller, a counter value of the first counter incrementally by adding or subtracting preset counter values depending on whether the detecting element for detecting a journey through a pass is being set or reset, the preset counter values also being variable depending on the current value of the angle of the gradient of the route; selecting the preset counter value to add to the counter value of the first counter from a setting characteristic line if the first counter is being set and selecting the preset counter value to add to the counter value of the first counter from a resetting characteristic line if the first counter is being reset; if at least one of the current value of the travel resistance (f_fw) drops below the second limiting value of the travel resistance and the current value of the angle of gradient (alpha) drops below the second limiting value of the angle of the gradient, freezing, via the transmission controller, the first counter (t_pass_zz) to suspend counting; and setting or resetting, via the transmission controller, the detecting element when the counter value of the first counter equals a set value.
-
Specification