CONTROL DEVICE OF VEHICLE

• Main Authors: WASHIO TAICHI, TSUJITA MASAYUKI, TERADA MUNENORI
• Format: Patent
• Language: English; Japanese
• Published: 29.08.2019
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

To keep a brake for backing in an engaged state during backing travel, in a vehicle provided with a power transmission device in which a belt-type continuously variable transmission and a gear mechanism are disposed in parallel with each other, and a selector valve is disposed to switch a hydraulic pressure supply destination between a clutch and the brake for backing.SOLUTION: In a control device applied to a vehicle provided with a power transmission device capable of selectively switching between a belt mode for transmitting power through a belt-type continuously variable transmission and a gear mode for transmitting power through a gear mechanism, and including an S1-B1 apply control valve switching between a first state to supply a hydraulic pressure to a brake for backing and a second state not to supply the hydraulic pressure to the brake for backing, a secondary pressure is set to a first prescribed value in forward travel (Step S3), and the secondary pressure is set to a second prescribed value smaller than the first set value in backing travel (Step S4), in a case of deceleration based on a braking request in the gear mode (Step S1: Yes).SELECTED DRAWING: Figure 5 【課題】ベルト式無段変速機とギヤ機構とが並列に設けられた動力伝達装置を搭載し、油圧の供給先をクラッチと後進用ブレーキとに切り替える切替バルブを備える車両を対象として、後進走行中に後進用ブレーキを係合状態に保持すること。【解決手段】ベルト式無段変速機を介して動力伝達するベルトモードと、ギヤ機構を介して動力伝達するギヤモードとを、選択的に切り替え可能な動力伝達装置を搭載し、後進用ブレーキに油圧を供給する第１状態と、後進用ブレーキに油圧を供給しない第２状態との間で切り替わるＳ１−Ｂ１アプライコントロールバルブを備える車両に適用される制御装置において、ギヤモード中に制動要求により減速する場合（ステップＳ１：Ｙｅｓ）、前進走行時にはセカンダリ圧を第１所定値に設定し（ステップＳ３）、後進走行時にはセカンダリ圧を第１所定値よりも小さい第２所定値に設定する（ステップＳ４）。【選択図】図５