Installation for automatic shifting of change-speed gears

Details Installation for automatic shifting of change-speed gears Installation for automatic shifting of change-speed gears

1974-07-26

1977-08-30

Scott, Samuel

Machine element or mechanism

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

Preselected indexed position

B60K 2100

Patent

active

040446344

ABSTRACT:
An installation for the automatic shifting of change-speed transmissions, especially for motor vehicles, in which actuating devices are provided for the engagement and disengagement of the speeds, which are controllable by way of control means by at least two influencing magnitudes, particularly output rotational speed and torque; an electronic control unit having a programmed, constant-value memory device is provided, in which is stored at least one set of output rotational speed limit values coordinated to the individual speeds and torque steps, while at least the influencing magnitudes of torque and engaged speed are adapted to be applied to the electronic control unit by way of corresponding inputs; and output of the constant value memory device is operatively connected with a rotational speed comparison unit, in which the output rotational speed limit values given out by the constant-value memory device are adapted to be compared with the prevailing output rotational speed, whereby in this rotational speed comparison unit shifting-up or shifting-down signals are adapted to be released, when exceeding or falling below the limit values; these shifting-up or shifting-down signals are then applied to the actuating devices.

REFERENCES:
patent: 3439564 (1969-04-01), Scholl et al.
patent: 3665779 (1972-05-01), Mori
patent: 3684066 (1972-08-01), Kubo et al.
patent: 3727488 (1973-04-01), Wakamatsu et al.
patent: 3732755 (1973-05-01), Beig et al.
patent: 3733930 (1973-05-01), Mizote
patent: 3747438 (1973-07-01), Toyoda et al.
patent: 3752284 (1973-08-01), Brittain et al.

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