Speed responsive electronic controls for transmissions

Details Speed responsive electronic controls for transmissions Speed responsive electronic controls for transmissions

1974-04-08

1977-07-05

Wyche, Benjamin W.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

192103R, 192 331, 2351035E, 310 95, 192 4A, B60K 2100

Patent

active

040332020

ABSTRACT:
An automatic electronic remote control system is provided which is particularly adapted to control the operation of clutches for a hydraulic torque converter in a vehicle. Responsive to operating conditions, the system produces different control signals depending on whether the ratio of the frequencies of two series of pulses is above or below a predetermined value, the pulse frequencies being related to the rotational speeds of the input and output axes of the converter. The system includes two n-bit binary ring counters which respectively receive the two series of pulses, one of the countersbeing effective to control the other so that a signal representing the actual value of the ratio in question is produced in binary form. This signal is decoded to produce the control signal referred to above.

REFERENCES:
patent: 2852195 (1958-09-01), Coleman et al.
patent: 2874900 (1959-02-01), Linderman
patent: 3641844 (1972-02-01), Wakamatsu et al.
patent: 3673400 (1972-06-01), Ito
patent: 3710647 (1973-01-01), Dack et al.
patent: 3750495 (1973-08-01), Ito et al.
patent: 3752011 (1973-08-01), Casey et al.
patent: 3752284 (1973-08-01), Brittain et al.
patent: 3805640 (1974-04-01), Schneider et al.
patent: 3834499 (1974-09-01), Candellero

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