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Title:
GEARBOX CONTROL DEVICE FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/168459
Kind Code:
A1
Abstract:
The present invention provides a gearbox control device for a vehicle in which the threshold value of a speed-change map via which upshifting is assessed is changed, whereby upshifting does not occur while the accelerator is depressed, and torque loss thus does not occur either. A gearbox control device for a vehicle (1) comprising a T/M-ECU 50 that switches a plurality of speed-change gears of a transmission (20) and automatically performs speed-change control for upshifting or downshifting, wherein the T/M-ECU 50 has a speed-change threshold value setting unit (54) that, on the basis of an operation plan or the surrounding conditions of the vehicle (1), sets a speed-change threshold value used in speed-change control, and the speed-change threshold value setting unit (54) sets the speed-change threshold value so that the transmission (50) is subjected to speed-change control so as to stop the transmission (50) from shifting up while the vehicle (1) is accelerating.

Inventors:
TSUGE Munetoshi (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
TSUTSUI Takashi (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
Application Number:
JP2018/007433
Publication Date:
September 20, 2018
Filing Date:
February 28, 2018
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
F16H61/04; F16H59/48; F16H59/60; F16H61/682
Attorney, Agent or Firm:
TODA Yuji (6-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 20, 〒1008220, JP)
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