Title:
SPEED CHANGER FOR VEHICLE
Document Type and Number:
Japanese Patent JPS5565752
Kind Code:
A
Abstract:
A change-speed transmission in which gear-ratios are established by engagement of appropriate fluid-pressure operated friction brakes and clutches (CF, CR, B3, 82, B1) includes a manually-operable control (41) for partially-engaging, to provide retardation of a vehicle, those friction brakes and/or clutches not in use at any time in establishing a particular gear-ratio. The control (41) operates valves (23, 22, 21, 33, 32, 31) which ensure that the rates of power absorption per unit friction area in all partially-engaged brakes and/or clutches is approximately equal and that the degree of retardation so provided decreases with each down-shift of the transmission.
Inventors:
ARUBAATO AASAA MIRAA
ANDORIYUU GOODON UIRUSON
ANDORIYUU GOODON UIRUSON
Application Number:
JP13971379A
Publication Date:
May 17, 1980
Filing Date:
October 29, 1979
Export Citation:
Assignee:
VOLVO AB
International Classes:
B60T1/06; F16H63/02; F16D67/00; F16H61/00; F16H63/12; F16H59/04; F16H61/21; (IPC1-7): F16H3/64