Patent ID: 6612967
Filing Date: 2003-09-02
Classification: B60W,F16H,Y10T

Abstract:
A kick down shift control apparatus of an automatic transmission of a vehicle, the apparatus comprising:vehicle running state sensing means for checking a running state of the vehicle; engine control means for controlling engine outputs in response to a signal sensed by the vehicle running state sensing means and outputting information on the temperature of intake air and the operational state of an air conditioner; shift control means for outputting a control signal to correct the pressure of transmission oil according to the temperature of intake air and the operational state of the air conditioner input from the engine control means, if conditions for a kick down shift are met with reception of the signal checked by the vehicle running state sensing means; and driving means for controlling the oil pressure discharged out by an oil pump according to the control signal output from the shift control means and performing a shift by providing the oil pressure for a relevant friction factor, wherein the shift control means determines a first correction duty with the temperature of intake air on the basis of a preset Map Table and a second correction duty with the operational state of an air conditioner and operates a pressure control solenoid valve with a duty obtained by adding the first and second correction duties to a reference duty.