TRANSMISSION CONTROL METHOD AND TRANSMISSION CONTROL DEVICE FOR STEPLESS TRANSMISSION Russian patent published in 2020 - IPC B60W10/10 B60W10/101 F16H59/42 F16H59/46 F16H61/02 F16H61/04 F16H61/662 

Abstract RU 2712713 C1

FIELD: motor vehicle industry.

SUBSTANCE: invention relates to vehicle transmissions. In the stepless transmission control method, normal transmission mode with stepless switching and pseudo-step transmission mode with step changeover is controlled. Further, target rotation frequency is set at "down" switching and lower limiting target rotation frequency used for pseudo-step "down" switching. Switched to pseudo-step "down" mode when mode change condition is met during deceleration by selecting normal transmission mode. Repeating the increase to the target rotation speed when switching "down" and reducing to the lower limit target speed of rotation speed of the transmission, when pseudo-step "down" switching is initiated, unless the mode cancellation condition including the request for repeated acceleration is satisfied.

EFFECT: improved response at acceleration.

12 cl, 13 dwg

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RU 2 712 713 C1

Authors

Kishi, Daigo

Dates

2020-01-30Published

2016-09-16Filed