PROBLEM TO BE SOLVED: To suppress a reduction in drive torque in a torque phase of an up-shift.SOLUTION: A controller executes: lowering a transmission torque capacity of a first frictional coupling mechanism at a predetermined slope when performing an up-shift, and increasing a transmission torque capacity of a second frictional coupling mechanism in accordance with a decrease in the transmission torque capacity of the first frictional coupling mechanism; setting, as a target revolution speed of an engine, a revolution speed that is higher, by a given revolution speed, than a synchronous revolution speed of the engine for a low-speed-side gear stage in a torque phase in which the transmission torque capacity of the first frictional coupling mechanism is decreased, with the transmission torque capacity of the second frictional coupling mechanism increased; and feedback-controlling torque of the engine on the basis of a difference between the revolution speed of the engine and the target revolution speed so that the revolution speed of the engine matches the target revolution speed in the torque phase.SELECTED DRAWING: Figure 2
【課題】アップシフトのトルク相での駆動トルクの落ち込みを抑制する。【解決手段】アップシフトの際に第1摩擦係合機構の伝達トルク容量を予め定めた勾配で低下させるとともに、第1摩擦係合機構の伝達トルク容量の低下に従って第2摩擦係合機構の伝達トルク容量を増大させ、第1摩擦係合機構の伝達トルク容量を低下させるとともに第2摩擦係合機構の伝達トルク容量を増大させているトルク相において、低速側の変速段でのエンジンの同期回転数より予め定めた所定回転数高い回転数をエンジンの目標回転数として設定し、トルク相においてエンジンの回転数を目標回転数に一致させるようにエンジンのトルクを、エンジンの回転数と目標回転数との偏差に基づいてフィードバック制御する。【選択図】図2
SHIFT CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION
自動変速機の変速制御装置
2017-06-01
Patent
Electronic Resource
Japanese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / F16H Getriebe , GEARING |
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