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Patent Searching and Data


Title:
VEHICLE TRAVEL CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/068720
Kind Code:
A1
Abstract:
This vehicle travel control device makes it less likely to cause the driver discomfort when switching back from different types of coasting. By reducing line pressure during neutral coasting, engagement shock when switching back from coasting is suppressed by ensuring controllability of the clutch engagement pressure supplied to the clutch (C1) when controlling the clutch (C1) towards engagement. Meanwhile, by increasing line pressure during cylinder deactivation coasting, clutch torque of the clutch (C1) can be increased, and the clutch (C1) can be prevented from slipping even when a large amount of power is transmitted immediately after switching back from coasting. In addition, by increasing the torque of the clutch (C1) during cylinder deactivation coasting, drive force can be outputted quickly when switching back from coasting, enabling the driver's expectations to be met. Conversely, during neutral coasting, since the engine speed Ne decreases more than during normal travel, the driver is less likely to experience discomfort even if acceleration performance is different from that during normal travel.

Inventors:
KIM JONGGAP (JP)
MITSUYASU MASAKI (JP)
KUROKI RENTARO (JP)
HIRAI TAKUYA (JP)
MATSUNAGA MASAKI (JP)
KIDO YASUNARI (JP)
SUZUKI TAKEAKI (JP)
KOGURE TAKAYUKI (JP)
OKAMURA YUKARI (JP)
SATO AKIHIRO (JP)
KINOSHITA YUSUKE (JP)
Application Number:
PCT/JP2012/078228
Publication Date:
May 08, 2014
Filing Date:
October 31, 2012
Export Citation:
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Assignee:
TOYOTA MOTOR CO LTD (JP)
KIM JONGGAP (JP)
MITSUYASU MASAKI (JP)
KUROKI RENTARO (JP)
HIRAI TAKUYA (JP)
MATSUNAGA MASAKI (JP)
KIDO YASUNARI (JP)
SUZUKI TAKEAKI (JP)
KOGURE TAKAYUKI (JP)
OKAMURA YUKARI (JP)
SATO AKIHIRO (JP)
KINOSHITA YUSUKE (JP)
International Classes:
F16D48/02
Foreign References:
JP2000055181A2000-02-22
JP2005023898A2005-01-27
Attorney, Agent or Firm:
IKEDA Haruyuki et al. (JP)
Haruyuki Ikeda (JP)
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