Toyota Jidosha Kabushiki Kaisha

Hitoshi Nomasa

Hiroyuki Shioiri

Ryuji Ibaraki

Yasuo Hojo

Hiroaki Kimura

Takeshi Miyagawa

Koichi Kondo

A hybrid vehicle driving device is capable of causing a motor-powered travel of a hybrid vehicle in which only an electric motor is used as a drive force source, by driving the electric motor with electric power from an electric storage device while a rotational driving of an internal combustion engine has been stopped. A control device for the hybrid vehicle driving device includes a rotational drive portion that determines whether or not supply of a lubrication oil to at least a portion of the power transmission device by the lubrication oil supply device is necessary based on a travel distance in the motor-powered travel following a stop of the rotational driving of the internal combustion engine, and rotationally drives the internal combustion engine based on determination as to need for the supply of the lubrication oil.

Control device for hybrid vehicle driving device, and control method for the driving device

An anti-theft fastening device for fastening an SBW motor externally mounted to a transmission case that includes a bolt having a head portion and a threaded portion integrally formed with the head portion, a bottomed tubular bolt cover having an opening end, and a cap member closing the opening end of the bolt cover. The bolt cover has a through bore to allow the threaded portion of the bolt to pass through, a bottom portion abutting a bottom surface of the head portion of the bolt, and a grip portion projecting from an outer circumference of the bottom portion and surrounding a periphery of the head portion of the bolt. When the threaded portion of the bolt is screwed into a threaded groove of the transmission case, the bottom portion of the bolt cover is interposed between the bottom surface of the head portion and each fastening portion of a bracket portion.

Fastening structure

A power transmission system having an input member () and an output member () for transmitting power, and an oil pump () for discharging oil by a relative rotation between a first () and a second rotary members () which is driven by the power transmitted between the input member () and the output member (), characterized in that: the input member () and the first rotary member () are connected with each other in a power transmittable manner, and the output member () and the second rotary member () are connected with each other in a power transmittable manner; and characterized by comprising: a transmission member () for connecting the first and the second rotary members in a power transmittable manner; and a control valve () for controlling a power transmission state between the first and the second rotary members, by controlling a discharge condition of the oil pump ().

Power transmission system

A belt type continuously variable transmission including a primary pulley; a secondary pulley; a belt which is looped over the primary pulley and the secondary pulley; a reduction gear unit that transmits torque, which has been output from an internal combustion engine and then transmitted to a secondary shaft, to a final reduction gear unit that is provided so as to be coaxial with the secondary shaft of the secondary pulley; and a damper oil chamber which is provided between the secondary shaft and an input shaft of the reduction gear unit. A thrust force generated in the reduction gear unit due to an input of a driving force is transmitted to a hydraulic fluid in a damper oil chamber, and then absorbed. Therefore, a displacement of a relative position between the primary pulley and the secondary pulley is suppressed.

Growing community of inventors

Toyota, Japan

Hitoshi Nomasa