Honda Motor Co., Ltd.

Yuki Shibahata

Seiichiro Ishikawa

Yasunari Kimura

Masashi Kato

Daiki Sato

Tsuneo Endo

Kensaku Yamamoto

Hiroshi Hanabusa

Mitsuo Kadota

Hidemi Arai

A pump motor of a hydraulic hybrid system also serves as a pump to supply hydraulic oil or lubricating oil to a power train, thus enabling elimination of an oil pump provided in the power train and hence reductions in the number of parts and cost, and, in addition, an existing oil pan provided in the power train and the like are utilized for the hydraulic hybrid system, which in turn enables achieving further reductions in the number of parts and cost. Moreover, when idle-reduction control is performed on an engine, during engine's stopped conditions, the pump motor can be driven as a motor by hydraulic pressure accumulated in an accumulator to start the engine and supply the hydraulic pressure to a transmission, thus eliminating a need to provide a motor-driven oil pump for the idle-reduction control and hence enabling a further reduction in cost.

Hydraulic hybrid vehicle

A liquid flow rate control valve is provided in which since a total area of overlapping sections of a communication hole group () of a distributor () and an outlet opening () of a sleeve () changes when the distributor () is rotated by a first electric motor (), if a rotor () is rotated by means of a second electric motor (), an input port () communicates with an output port () through an inlet opening () of the rotor (), the communication hole group () of the distributor (), and the outlet opening () of the sleeve () when the inlet opening () of the rotor () passes through the overlapping sections, thereby making it possible to carry out PWM control of a flow rate of liquid. Since a thrust load in an axis (L) direction does not act on the distributor () and the rotor (), supporting the distributor () and the rotor () becomes easy, thereby enabling the cost and weight to be cut.

Liquid flow rate control valve

A liquid flow rate control valve is provided in which since a distributor () is rotated relative to a sleeve () by a first drive source () only through a predetermined angle, the total area of overlapping sections of a first opening () of the sleeve () and the second opening () of the distributor () changes, and a rotor () having a third opening () is rotated by a second drive source (), it is possible to carry out PWM control of the liquid input from an input port () and output it from an output port (). In this process, one end in an axis (L) direction of the rotor () disposed on an inside in a radial direction is coaxially connected to the second drive source (), and one end in the axis (L) direction of the distributor () disposed on an outside in a radial direction is connected to the first drive source () via a gear train (), and therefore, it is possible to individually rotate the distributor () and the rotor () while achieving a compact size by arranging the first and second drive sources () in a concentrated manner at one end in the axis (L) direction of a liquid flow rate control valve ().

Growing community of inventors

Wako, Japan

Yuki Shibahata