Abstract: Methods for automated calibration adaptation of a gearshift controller are disclosed. In one aspect, the method automates calibration of a gearshift controller in an automatic transmission having one or more speed sensors, each configured to generate a signal, and allowing one or more gearshifts with associated gearshift output sets ji that are functions of speed sensor signals and the desired gearshift output sets ?i. The gearshift controller has one or more gearshift control parameter sets Urji to be calibrated, each set including gearshift control parameters for an allowed gearshift at one operating condition, and learning controllers Li sets of system models Hr, and positive definite matrices Pi for updating Urji during sequences of allowed gearshifts. The method incudes acquiring speed sensor signals, computing the gearshift output set jj; and updating the gearshift control parameter set pi.

Abstract: Methods for automated calibration adaptation of a gearshift controller are disclosed. In one aspect, the method automates calibration of a gearshift controller in an automatic transmission having one or more speed sensors, each configured to generate a signal, and allowing one or more gearshifts with associated gearshift output sets ji that are functions of speed sensor signals and the desired gearshift output sets ?i. The gearshift controller has one or more gearshift control parameter sets Urji to be calibrated, each set including gearshift control parameters for an allowed gearshift at one operating condition, and learning controllers Li sets of system models Hr, and positive definite matrices Pi for updating Urji during sequences of allowed gearshifts. The method incudes acquiring speed sensor signals, computing the gearshift output set jj; and updating the gearshift control parameter set pi.

Abstract: Methods for automated calibration and adaption of a gearshift controller (39) are disclosed. In one aspect, the method automates calibration a gearshift controller (39) for controlling a sequence of gearshifts in either a stepped automatic transmission equipped with at least one speed sensor mounted on a dynamometer (42) or an automotive vehicle mounted on a dynamometer (42), where the dynamometer (42) is electronically controlled by a dynamometer controller (43). Each gearshift in the sequence includes a first phase, a second phase, . . . and an Nth phase. The gearshift controller (39) includes (initial values of) a first phase control parameters set, a second phase control parameters set, . . . and an Nth phase control parameters set for each gearshift in the sequence that are updated using a first phase learning controller, a second phase learning controller, . . . and an N*11 phase learning controller respectively.

Abstract: Methods for automated calibration and adaption of a gearshift controller (39) are disclosed. In one aspect, the method automates calibration a gearshift controller (39) for controlling a sequence of gearshifts in either a stepped automatic transmission equipped with at least one speed sensor mounted on a dynamometer (42) or an automotive vehicle mounted on a dynamometer (42), where the dynamometer (42) is electronically controlled by a dynamometer controller (43). Each gearshift in the sequence includes a first phase, a second phase, . . . and an Nth phase. The gearshift controller (39) includes (initial values of) a first phase control parameters set, a second phase control parameters set, . . . and an Nth phase control parameters set for each gearshift in the sequence that are updated using a first phase learning controller, a second phase learning controller, . . . and an N*11 phase learning controller respectively.

Abstract: This invention pertains to the field of power transmission. Machines using a power transmission mechanism for transmission of the mechanical power produced by a source (engine (2), electric motor, pneumatic and hydraulic pump) to another component of the machine (wheel (21), electric motor, electric generator, pneumatic and hydraulic pump) through multiple transmission paths (different gear ratios (14), (15)) are subjects of this invention. It is disclosed that control of a switching from one power transmission path to another is done in a manner involving simultaneous load transfer and speed synchronization rather than sequential performance of these two functions, and the resulting method developed in the invention leads to switching operations that produce less disturbance at the input of the said component. The said method is applied to the problem of controlling gearshifts in automatic transmissions of ground vehicles.