Method and system for shift control of an automatic transmission

Details Method and system for shift control of an automatic transmission Method and system for shift control of an automatic transmission

1986-05-06

1988-12-06

Lall, Parshotam S.

Boots, shoes, and leggings

74866, B60K 4108, B60K 4106

Patent

active

047899379

ABSTRACT:
A shift control of an automatic transmission including a first transmission section and a second transmission section, which are capable of shifting automatically and independently of each other, and the first transmission section and the second transmission section are simultaneously or alternately shifted, to achieve multi-gear shifts, in which when shifting is to be achieved by shifting the first transmission section and the second transmission section in directions opposite to each other, and shifting is a down shift in the automatic transmission as a whole, such shifting is prohibited. The advantages of the multi-gear shifts are thus fully utilized to avoid high shift shocks.

REFERENCES:
patent: 4308764 (1982-01-01), Kawanioto et al.
patent: 4338666 (1982-07-01), Suzuki et al.
patent: 4346627 (1982-08-01), Kawanioto et al.
patent: 4350057 (1982-09-01), Kishi et al.
patent: 4380048 (1983-04-01), Kishi et al.
patent: 4584906 (1986-04-01), Nagaoka et al.
patent: 4674364 (1987-06-01), Shindo et al.
patent: 4693143 (1987-09-01), Harada et al.

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