Method of automatically controlling modulation pressure in an au

Details Method of automatically controlling modulation pressure in an au Method of automatically controlling modulation pressure in an au

1990-08-07

1992-06-30

Lall, Parshotam S.

Boots, shoes, and leggings

74866, 74867, 36443104, 36443112, G06F 1550

Patent

active

051269406

ABSTRACT:
The method of controlling the modulation pressure in an automatic transmission of a motor vehicle engine includes determining which of n types of engines is being controlled, converting a digitized measured engine load value to one of eight scaled binary values, converting a digitized measured engine speed value signal to one of 32 scaled binary values, combining the scaled binary values of both engine speed and load into an address word for addressing one of n.times.256 storage locations of a data storage device containing reference control data, addressing the storage location corresponding to the address word and transferring the contents of the storage location so addressed to a microprocessor, which generates a current controlling a modulation pressure valve connected to the transmission according to the predetermined engine speed and load dependent data. For greater control sensitivity, reference data is retrieved from adjacent storage locations and an interpolation of the reference data in those locations is performed.

REFERENCES:
patent: 4269281 (1981-05-01), Schneider et al.
patent: 4488456 (1984-12-01), Taga et al.
patent: 4494422 (1985-01-01), Funke et al.
patent: 4736301 (1988-04-01), Osanai
patent: 4781655 (1988-11-01), Tezuka
patent: 4791568 (1988-12-01), Hiramatsu et al.
patent: 4813307 (1989-03-01), Hiramatsu et al.
patent: 4845618 (1989-07-01), Narita
patent: 4955259 (1990-09-01), Narita
patent: 4981053 (1991-01-01), Yamaguchi
patent: 4987544 (1991-01-01), Honda et al.

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