Interrelated power delivery controls – including engine control – Transmission control – Continuously variable friction transmission
Patent
1999-02-09
2000-05-09
Estremsky, Sherry L.
Interrelated power delivery controls, including engine control
Transmission control
Continuously variable friction transmission
477118, B60K 4112
Patent
active
060596864
ABSTRACT:
In a vehicle comprising a continuously variable transmission, an engine braking force is increased or decreased via speed ratio control. First, a first target speed ratio is determined based on a vehicle speed. Information relating to vehicle running conditions is acquired, and the first target speed ratio is modified to a second target speed ratio according to this information by controlling the speed ratio of the continuously variable transmission to the second target speed ratio. Hence, the optimum engine braking force is obtained according to the running conditions.
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Estremsky Sherry L.
Nissan Motor Co,. Ltd.
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