{
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  "description": "Provided is a lock-up clutch control system for a vehicle, in which, when the accelerator pedal is released in a slip engagement mode, lock-up re-engagement with reduced engagement shock is performed, thereby improving fuel economy. A torque converter (4) having a lock-up clutch (3) is disposed…",
  "path": "/patents/924112",
  "publishedAt": "2017-07-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60W10/026",
    "NISSAN MOTOR [JP]"
  ],
  "textContent": "Provided is a lock-up clutch control system for a vehicle, in which, when the accelerator pedal is released in a slip engagement mode, lock-up re-engagement with reduced engagement shock is performed, thereby improving fuel economy. A torque converter (4) having a lock-up clutch (3) is disposed between an engine (1) and a continuously variable transmission (6). The vehicle is provided with a coast lock-up control unit configured to bring the engine (1) in a fuel cut-off state when the accelerator pedal is released in a slip engagement mode in which a differential rotation is present in the lock-up clutch (3) with the accelerator pedal being depressed. Upon accelerator fool release operation, the coast lock-up control unit performs an engine torque control to synchronize engine rotation speed and turbine rotational speed, re-engages the lock-up clutch (3) in a rotation synchronization state, and, after the re-engagement, and performs fuel cut-off",
  "title": "LOCK-UP CLUTCH CONTROL DEVICE FOR VEHICLE"
}