Patent
Vehicle control device
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TLDR
In this article, an initial irregularity learning control is executed whenever learning conditions are satisfied with views of absorbing initial irregularities such as manufacturing errors and irregularities in constituent elements of a second clutch CL2.Abstract:
PROBLEM TO BE SOLVED: To prevent longitudinal-slide shift control from being executed in a state in which an input torque is not less than a predetermined value, thereby improving the durability of a belt and a pulley and improving responsiveness of accelerator operation after execution of the longitudinal-slide shift control.SOLUTION: An initial irregularity learning control is executed whenever learning conditions are satisfied with views of absorbing initial irregularities such as manufacturing errors and irregularities in constituent elements of a second clutch CL2. A total number of times of learning is counted, and if the total number of times of learning for the initial irregularity learning control reaches a predetermined number (five, for example), it is determined that the initial irregularity learning control converges. On condition of this learning control convergence, a so-called longitudinal-slide shift control is executed for returning a belt 50 of a variator V to a position of lowest gear ratio. As a result, the longitudinal-slide shift control is not executed in a state in which an excessive torque acts, so that durability of the belt and a pulley improves.read more
Citations
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References
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Patent
Power transmission control device for vehicle
TL;DR: In this paper, the MG torque is intentionally adjusted to a value shifted from the MG's torque final reference value in place of the MG's torque limit value, based on satisfaction of a predetermined condition relating to a clutch pedal operation.
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TL;DR: In this paper, the intention of acceleration or deceleration of a driver is confirmed before the connection operation of the automatic clutch 2 in downshift, and when the driver intends to accelerate, a blipping revolution number is set to be high.
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Ishida Kazuki,Hiroyasu Tanaka,Yusuke Kimura,Tetsuya Izumi,Akito Suzuki,Takashi Eguchi,Miyaishi Hironori +6 more
TL;DR: In this article, a vehicle equipped with a continuously variable transmission is configured to start a vehicle-stop LOW shift control to shift a pulley ratio of the continuously variable transmitting mechanism toward the LOW side when the vehicle stop judging section determines that the vehicle is in the stopped state under a power-transferring state where the friction engagement element is in an engaged state.
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Controller for vehicle equipped with belt-type continuously variable transmission
TL;DR: In this article, the problem of slip of a pulley and a belt caused by improper speed change for preventing a vehicle from returning to the lowest position when stopping the vehicle to improve durability of the belt is addressed.