192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1987-09-11
1989-07-18
James, Andrew J.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
74866, B60K 4110
Patent
active
048485292
ABSTRACT:
In an automatic transmission system in which a gear transmission and a clutch are electronically controlled so as to shift the transmission to the optimum gear position, the system comprises a first generator for generating a set of initial map data corresponding to the position of a selector, the initial map data being for determining an initial target gear position to which the gear should be initially shifted after the position of the selector is changed, and a second generator for generating a set of normal map data corresponding to the position of the selector, the normal map data being for determining a normal target gear position to which the gear should be shifted after the gear is shifted to the determined initial target position. One of the outputs of the first and second generators is selected and applied to a calculator in which the target gear position is calculated in accordance with the selected map data. The gear transmission is automatically shifted to the calculated gear position. When the gear transmission is in a transitory condition, the initial map data is selected, whereby inappropriate gear shift operation just after the position of the selector is changed can effectively be prevented.
REFERENCES:
patent: 4714145 (1987-12-01), Kurihara et al.
patent: 4718309 (1988-01-01), Moriya
patent: 4732055 (1988-03-01), Tateno
Arai Kenji
Kurihara Kazumasa
Diesel Kiki Co. Ltd.
James Andrew J.
Soltz David
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