Title:
AUTOMATIC GEAR CHANGE CONTROL SYSTEM OF HYBRID VEHICLE
Document Type and Number:
Japanese Patent JP2016113039
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To shorten the time required to complete a gear change action at the time of performing a gear change manipulation irrespective of a gradient of a traveling road.SOLUTION: An automatic gear change control system of a hybrid vehicle has a clutch 26, electric motor 31, and mechanical transmission 10 connected in that order to an internal combustion engine 21. Gear change control means 36 is included to control the electric motor 31 before gears are engaged with one another after the gears are disengaged from one another when the mechanical transmission 10 is manipulated in order to change a gear ratio, so that the rotating speed of an input shaft of the mechanical transmission 10 can approach to a rotating speed at which the gears can be engaged with one another. The automatic gear change control system further includes road gradient detection means 37 that detects the gradient of a traveling road, and acceleration/deceleration detection means 40 that detects the acceleration or deceleration of a vehicle. When the gear ratio is changed, if the road gradient detection means 37 detects a gradient that falls outside a predetermined range, the gear change control means 36 controls the electric motor on the basis of the acceleration or deceleration, which is detected by the acceleration/deceleration detection means, so that the rotating speed of the input shaft will approach to an offset rotating speed which is deviated by a predetermined value in a direction in which the rotating speed increases or decreases from the rotating speed at which the gears can be engaged with one another.SELECTED DRAWING: Figure 1
More Like This:
| JP2014019328 | CONTROL DEVICE FOR HYBRID VEHICLE |
| JP2010116154 | CONTROL DEVICE OF VEHICLE |
| JP5338473 | Engine start control device |
Inventors:
OTSUKA YUKI
TAKAHASHI MASAYUKI
TAKAHASHI MASAYUKI
Application Number:
JP2014253874A
Publication Date:
June 23, 2016
Filing Date:
December 16, 2014
Export Citation:
Assignee:
HINO MOTORS LTD
International Classes:
B60W10/08; B60K6/48; B60L50/16; B60W20/00; F16H59/42; F16H61/02; F16H61/682; F16H63/50
Domestic Patent References:
| JP2011098679A | 2011-05-19 | |||
| JP2014201137A | 2014-10-27 | |||
| JP2013241067A | 2013-12-05 |
Attorney, Agent or Firm:
Toshiaki Hayakawa
Previous Patent: Cooling structure of an in-vehicle battery
Next Patent: Automotive battery temperature control system
Next Patent: Automotive battery temperature control system