HYDRAULIC CONTROLLER OF HYBRID DRIVE DEVICE

• Main Authors: YAMAGUCHI TETSUYA, YOSHIOKA YUHEI, WADA KENSUKE, KAMIYA TOSHIHIKO, SUYAMA DAIKI, INOUE YUJI, IDESHIO YUKIHIKO
• Format: Patent
• Language: English; Japanese
• Published: 03.09.2015
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; BRAKES; CLUTCHES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a hybrid drive device hydraulic controller capable of engaging a clutch provided between an engine and a motor with less engagement shock even during a failure in which no current is supplied to a control solenoid valve.SOLUTION: In a hydraulic controller 15, a switching unit 100 sets a hydraulic passage L between an original pressure generation unit 14 for supplying an engagement pressure PE and a hydraulic servo 16 of a clutch kin a first state during normal times, and in a second state during a failure in which no current is supplied to a control solenoid valve 19. If no current is supplied to the control solenoid valve 19, an original pressure Pis directly output to the hydraulic servo 16 as the engagement pressure PE. However, it is possible to relieve an increase in the engagement pressure PE supplied thereto during the failure since the hydraulic passage L is in the second state in which pipe pressure resistance is high compared to the first state at least until the clutch Kis engaged. 【課題】制御ソレノイドバルブを非通電にするフェール時においても、エンジンとモータとの間に設けられたクラッチを、少ない係合ショックで係合可能にしたハイブリッド駆動装置の油圧制御装置を提供する。【解決手段】油圧制御装置１５は、切換部１００によって、係合圧ＰＥを供給する元圧生成部１４とクラッチＫ０の油圧サーボ１６との間の油圧経路Ｌを、正常時に第１状態とし、制御ソレノイドバルブ１９を非通電にするフェール時に第２状態とする。制御ソレノイドバルブ１９が非通電になると、油圧サーボ１６に係合圧として元圧ＰＬが直接出力されるが、油圧経路Ｌが第１状態よりも少なくともクラッチＫ０が係合するまでの間、管圧抵抗の高い第２状態となっているため、フェール時に供給される係合圧の上昇を緩和することができる。【選択図】図２