초록 ▼

The device consists of a comparison unit 35 comparing the respective speeds 31a and 32a of the input shaft 2 and the output shaft 7 of the converter with a pre-set value so as to supply a “bridging”control command to an electrohydraulic transducer 14; and a timing unit 34 eliminating the “bridging”b

The device consists of a comparison unit 35 comparing the respective speeds 31a and 32a of the input shaft 2 and the output shaft 7 of the converter with a pre-set value so as to supply a “bridging”control command to an electrohydraulic transducer 14; and a timing unit 34 eliminating the “bridging”by signal 34a during the changeover from one transmission ratio to another in accordance with the data supplied by the unit 20 and transmitting with a delay the changeover control command to the transmission control elements 13a and 13b. It is thus possible to “bridge”or lock out the converter for all the transmission ratios while eliminating the “bridging”when each ratio change is made.

대표청구항 ▼

A control system for controlling the engaging and disengaging of the clutch of a hydrodynamic torque converter in an automatic transmission having at least two forward gear ratios, each gear ratio being established in response to receipt by the automatic transmission of a shift signal generated by a

A control system for controlling the engaging and disengaging of the clutch of a hydrodynamic torque converter in an automatic transmission having at least two forward gear ratios, each gear ratio being established in response to receipt by the automatic transmission of a shift signal generated by an electronic ratio controller, said system comprising: means for generating a first signal indicative of the input speed to the torque converter; means for generating a second signal indicative of the output speed of the torque converter; a comparator responsive to the comparison of the first signal and the second signal for generating a control signal when that comparison exceeds a preset value; timing means responsive to the generation of the shift signal for generating an inhibiting signal of a predetermined time duration and applying the shift signal to the automatic transmission after said predetermined time duration has elapsed; output means responsive to the presence of the control signal and the absence of the inhibiting signal for providing an output signal; and clutch control means responsive to the presence of said output signal for causing engagement of the clutch and responsive to the absence of said output signal for causing disengagement of the clutch.