Transmission temperature sensing and control

Details Transmission temperature sensing and control Transmission temperature sensing and control

2011-05-31

2011-05-31

Wright, Dirk (Department: 3655)

Machine element or mechanism

Gearing

Interchangeably locked

Reexamination Certificate

active

07950303

ABSTRACT:
As one example, a propulsion system for a vehicle is provided, comprising: a propulsion device configured to provide mechanical work via a crankshaft; a transmission having an input shaft coupled with the crankshaft and an output shaft, wherein said transmission includes a plurality of selectable gear ratios between the input and output shaft; at least one drive wheel coupled with the output shaft; an actuation device configured to adjust the selected gear ratio of the transmission; and a control system configured to adjust an electrical signal provided to the actuation device to obtain an indication of a temperature dependent electrical parameter of the actuation device and to adjust the selected gear ratio of transmission by varying the signal provided to the actuation device in response to said indication.

REFERENCES:
patent: 6262556 (2001-07-01), Hubbard et al.
patent: 7635961 (2009-12-01), Kimura et al.
patent: 2010/0156338 (2010-06-01), Lu et al.

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