Toyota Jidosha Kabushiki Kaisha

Nippon Soken, Inc.

Kunio Takeda

Hideto Watanabe

Yoshimitsu Yokouchi

Masayuki Tanaka

Hajime Kato

Naoki Hakamada

Eiji Ichioka

Kazunori Uchiyama

When the condition for starting an engine () is satisfied, the controller () executes the lock switching control in which the wheels () are forcibly locked by the brake device () and the parking lock mechanism () is released to unlock the driveshaft (step S, step S), and then the controller () executes the cranking control (step S) in which the engine () is started by the motor-generator (MG).

Vehicle driving apparatus and control method for same

A hybrid vehicle includes an engine that is an internal combustion engine, a motor generator that is a rotating electric machine used together with the engine for driving the vehicle, an output shaft transmitting power to a wheel, a transmission member coupled to the output shaft, a power split device splitting the output from the engine to the motor generator and transmission member, a detection device detecting irregularities on a road, and a control unit reducing, when the detected result by the detection device indicates generation of periodic torque variation at the output shaft, the output from the engine based on the detected result. Accordingly, a hybrid vehicle that does not require a torque limiter is provided.

Hybrid vehicle

A hybrid control controller stores vehicle speed influence values that have been set according to vehicle speeds, a first threshold value of a sum value of the vehicle speed influence values, a second threshold value lower than the first threshold value, and an engine start reference vehicle speed, and during EV running, sums the vehicle speed influence values from moment to moment. The hybrid control controller starts the engine in a case where the sum value is no less than the first threshold value, and in a case where the sum value is no less than the second threshold value and the vehicle speed is no more than an engine start reference vehicle speed.

Control apparatus of vehicle drive apparatus and plug-in hybrid vehicle

A transmission includes: a plurality of rotating elements interposed between a driving source and an output portion; a rotating member that rotatably supports one of the rotating elements and is formed at a radially outer portion thereof with a plurality of recesses or protrusions; a support member having a surface, that is facing the rotating member, and a plurality of protrusions or recesses that are formed in a radially inner portion thereof and engage with the recesses or protrusions of the rotating member, the rotating member being mounted in the support member such that the rotating member is not able to rotate; and a friction producing mechanism that is provided between the rotating member and the above-indicated surface of the support member and is arranged to produce a frictional force between the rotating member and the surface of the support member.

Growing community of inventors

Kariya, Japan

Kunio Takeda